| File: | var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp |
| Warning: | line 3774, column 18 Value stored to 'exception' during its initialization is never read |
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| 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- |
| 2 | * vim: set ts=8 sts=2 et sw=2 tw=80: |
| 3 | * |
| 4 | * Copyright 2015 Mozilla Foundation |
| 5 | * |
| 6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | * you may not use this file except in compliance with the License. |
| 8 | * You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, software |
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | * See the License for the specific language governing permissions and |
| 16 | * limitations under the License. |
| 17 | */ |
| 18 | |
| 19 | #include "wasm/WasmIonCompile.h" |
| 20 | |
| 21 | #include "mozilla/DebugOnly.h" |
| 22 | #include "mozilla/MathAlgorithms.h" |
| 23 | |
| 24 | #include <algorithm> |
| 25 | |
| 26 | #include "jit/ABIArgGenerator.h" |
| 27 | #include "jit/CodeGenerator.h" |
| 28 | #include "jit/CompileInfo.h" |
| 29 | #include "jit/Ion.h" |
| 30 | #include "jit/IonOptimizationLevels.h" |
| 31 | #include "jit/MIR-wasm.h" |
| 32 | #include "jit/MIR.h" |
| 33 | #include "jit/ShuffleAnalysis.h" |
| 34 | #include "js/ScalarType.h" // js::Scalar::Type |
| 35 | #include "wasm/WasmBaselineCompile.h" |
| 36 | #include "wasm/WasmBuiltinModule.h" |
| 37 | #include "wasm/WasmBuiltins.h" |
| 38 | #include "wasm/WasmCodegenTypes.h" |
| 39 | #include "wasm/WasmGC.h" |
| 40 | #include "wasm/WasmGcObject.h" |
| 41 | #include "wasm/WasmGenerator.h" |
| 42 | #include "wasm/WasmOpIter.h" |
| 43 | #include "wasm/WasmSignalHandlers.h" |
| 44 | #include "wasm/WasmStubs.h" |
| 45 | #include "wasm/WasmValidate.h" |
| 46 | |
| 47 | using namespace js; |
| 48 | using namespace js::jit; |
| 49 | using namespace js::wasm; |
| 50 | |
| 51 | using mozilla::IsPowerOfTwo; |
| 52 | using mozilla::Maybe; |
| 53 | using mozilla::Nothing; |
| 54 | using mozilla::Some; |
| 55 | |
| 56 | namespace { |
| 57 | |
| 58 | using UniqueCompileInfo = UniquePtr<CompileInfo>; |
| 59 | using UniqueCompileInfoVector = Vector<UniqueCompileInfo, 1, SystemAllocPolicy>; |
| 60 | |
| 61 | using BlockVector = Vector<MBasicBlock*, 8, SystemAllocPolicy>; |
| 62 | using DefVector = Vector<MDefinition*, 8, SystemAllocPolicy>; |
| 63 | |
| 64 | // To compile try-catch blocks, we extend the IonCompilePolicy's ControlItem |
| 65 | // from being just an MBasicBlock* to a Control structure collecting additional |
| 66 | // information. |
| 67 | using ControlInstructionVector = |
| 68 | Vector<MControlInstruction*, 8, SystemAllocPolicy>; |
| 69 | |
| 70 | struct TryControl { |
| 71 | // Branches to bind to the try's landing pad. |
| 72 | ControlInstructionVector landingPadPatches; |
| 73 | // For `try_table`, the list of tagged catches and labels to branch to. |
| 74 | TryTableCatchVector catches; |
| 75 | // Whether this try is in the body and should catch any thrown exception. |
| 76 | bool inBody; |
| 77 | |
| 78 | TryControl() : inBody(false) {} |
| 79 | |
| 80 | // Reset the try control for when it is cached in FunctionCompiler. |
| 81 | void reset() { |
| 82 | landingPadPatches.clearAndFree(); |
| 83 | catches.clearAndFree(); |
| 84 | inBody = false; |
| 85 | } |
| 86 | }; |
| 87 | using UniqueTryControl = UniquePtr<TryControl>; |
| 88 | using VectorUniqueTryControl = Vector<UniqueTryControl, 2, SystemAllocPolicy>; |
| 89 | |
| 90 | struct Control { |
| 91 | MBasicBlock* block; |
| 92 | UniqueTryControl tryControl; |
| 93 | |
| 94 | Control() : block(nullptr), tryControl(nullptr) {} |
| 95 | Control(Control&&) = default; |
| 96 | Control(const Control&) = delete; |
| 97 | }; |
| 98 | |
| 99 | // [SMDOC] WebAssembly Exception Handling in Ion |
| 100 | // ======================================================= |
| 101 | // |
| 102 | // ## Throwing instructions |
| 103 | // |
| 104 | // Wasm exceptions can be thrown by either a throw instruction (local throw), |
| 105 | // or by a wasm call. |
| 106 | // |
| 107 | // ## The "catching try control" |
| 108 | // |
| 109 | // We know we are in try-code if there is a surrounding ControlItem with |
| 110 | // LabelKind::Try. The innermost such control is called the |
| 111 | // "catching try control". |
| 112 | // |
| 113 | // ## Throws without a catching try control |
| 114 | // |
| 115 | // Such throws are implemented with an instance call that triggers the exception |
| 116 | // unwinding runtime. The exception unwinding runtime will not return to the |
| 117 | // function. |
| 118 | // |
| 119 | // ## "landing pad" and "pre-pad" blocks |
| 120 | // |
| 121 | // When an exception is thrown, the unwinder will search for the nearest |
| 122 | // enclosing try block and redirect control flow to it. The code that executes |
| 123 | // before any catch blocks is called the 'landing pad'. The 'landing pad' is |
| 124 | // responsible to: |
| 125 | // 1. Consume the pending exception state from |
| 126 | // Instance::pendingException(Tag) |
| 127 | // 2. Branch to the correct catch block, or else rethrow |
| 128 | // |
| 129 | // There is one landing pad for each try block. The immediate predecessors of |
| 130 | // the landing pad are called 'pre-pad' blocks. There is one pre-pad block per |
| 131 | // throwing instruction. |
| 132 | // |
| 133 | // ## Creating pre-pad blocks |
| 134 | // |
| 135 | // There are two possible sorts of pre-pad blocks, depending on whether we |
| 136 | // are branching after a local throw instruction, or after a wasm call: |
| 137 | // |
| 138 | // - If we encounter a local throw, we create the exception and tag objects, |
| 139 | // store them to Instance::pendingException(Tag), and then jump to the |
| 140 | // landing pad. |
| 141 | // |
| 142 | // - If we encounter a wasm call, we construct a MWasmCallCatchable which is a |
| 143 | // control instruction with either a branch to a fallthrough block or |
| 144 | // to a pre-pad block. |
| 145 | // |
| 146 | // The pre-pad block for a wasm call is empty except for a jump to the |
| 147 | // landing pad. It only exists to avoid critical edges which when split would |
| 148 | // violate the invariants of MWasmCallCatchable. The pending exception state |
| 149 | // is taken care of by the unwinder. |
| 150 | // |
| 151 | // Each pre-pad ends with a pending jump to the landing pad. The pending jumps |
| 152 | // to the landing pad are tracked in `tryPadPatches`. These are called |
| 153 | // "pad patches". |
| 154 | // |
| 155 | // ## Creating the landing pad |
| 156 | // |
| 157 | // When we exit try-code, we check if tryPadPatches has captured any control |
| 158 | // instructions (pad patches). If not, we don't compile any catches and we mark |
| 159 | // the rest as dead code. |
| 160 | // |
| 161 | // If there are pre-pad blocks, we join them to create a landing pad (or just |
| 162 | // "pad"). The pad's last two slots are the caught exception, and the |
| 163 | // exception's tag object. |
| 164 | // |
| 165 | // There are three different forms of try-catch/catch_all Wasm instructions, |
| 166 | // which result in different form of landing pad. |
| 167 | // |
| 168 | // 1. A catchless try, so a Wasm instruction of the form "try ... end". |
| 169 | // - In this case, we end the pad by rethrowing the caught exception. |
| 170 | // |
| 171 | // 2. A single catch_all after a try. |
| 172 | // - If the first catch after a try is a catch_all, then there won't be |
| 173 | // any more catches, but we need the exception and its tag object, in |
| 174 | // case the code in a catch_all contains "rethrow" instructions. |
| 175 | // - The Wasm instruction "rethrow", gets the exception and tag object to |
| 176 | // rethrow from the last two slots of the landing pad which, due to |
| 177 | // validation, is the l'th surrounding ControlItem. |
| 178 | // - We immediately GoTo to a new block after the pad and pop both the |
| 179 | // exception and tag object, as we don't need them anymore in this case. |
| 180 | // |
| 181 | // 3. Otherwise, there is one or more catch code blocks following. |
| 182 | // - In this case, we construct the landing pad by creating a sequence |
| 183 | // of compare and branch blocks that compare the pending exception tag |
| 184 | // object to the tag object of the current tagged catch block. This is |
| 185 | // done incrementally as we visit each tagged catch block in the bytecode |
| 186 | // stream. At every step, we update the ControlItem's block to point to |
| 187 | // the next block to be created in the landing pad sequence. The final |
| 188 | // block will either be a rethrow, if there is no catch_all, or else a |
| 189 | // jump to a catch_all block. |
| 190 | |
| 191 | struct IonCompilePolicy { |
| 192 | // We store SSA definitions in the value stack. |
| 193 | using Value = MDefinition*; |
| 194 | using ValueVector = DefVector; |
| 195 | |
| 196 | // We store loop headers and then/else blocks in the control flow stack. |
| 197 | // In the case of try-catch control blocks, we collect additional information |
| 198 | // regarding the possible paths from throws and calls to a landing pad, as |
| 199 | // well as information on the landing pad's handlers (its catches). |
| 200 | using ControlItem = Control; |
| 201 | }; |
| 202 | |
| 203 | using IonOpIter = OpIter<IonCompilePolicy>; |
| 204 | |
| 205 | class FunctionCompiler; |
| 206 | |
| 207 | // CallCompileState describes a call that is being compiled. |
| 208 | |
| 209 | class CallCompileState { |
| 210 | // A generator object that is passed each argument as it is compiled. |
| 211 | WasmABIArgGenerator abi_; |
| 212 | |
| 213 | // Accumulates the register arguments while compiling arguments. |
| 214 | MWasmCallBase::Args regArgs_; |
| 215 | |
| 216 | // Reserved argument for passing Instance* to builtin instance method calls. |
| 217 | ABIArg instanceArg_; |
| 218 | |
| 219 | // The stack area in which the callee will write stack return values, or |
| 220 | // nullptr if no stack results. |
| 221 | MWasmStackResultArea* stackResultArea_ = nullptr; |
| 222 | |
| 223 | // Indicates that the call is a return/tail call. |
| 224 | bool returnCall = false; |
| 225 | |
| 226 | // Only FunctionCompiler should be directly manipulating CallCompileState. |
| 227 | friend class FunctionCompiler; |
| 228 | }; |
| 229 | |
| 230 | // Encapsulates the compilation of a single function in an asm.js module. The |
| 231 | // function compiler handles the creation and final backend compilation of the |
| 232 | // MIR graph. |
| 233 | class FunctionCompiler { |
| 234 | struct ControlFlowPatch { |
| 235 | MControlInstruction* ins; |
| 236 | uint32_t index; |
| 237 | ControlFlowPatch(MControlInstruction* ins, uint32_t index) |
| 238 | : ins(ins), index(index) {} |
| 239 | }; |
| 240 | |
| 241 | using ControlFlowPatchVector = Vector<ControlFlowPatch, 0, SystemAllocPolicy>; |
| 242 | |
| 243 | struct PendingBlockTarget { |
| 244 | ControlFlowPatchVector patches; |
| 245 | BranchHint hint = BranchHint::Invalid; |
| 246 | }; |
| 247 | |
| 248 | using PendingBlockTargetVector = |
| 249 | Vector<PendingBlockTarget, 0, SystemAllocPolicy>; |
| 250 | |
| 251 | // Inlined functions accumulate all returns to be bound to a caller function |
| 252 | // after compilation is finished. |
| 253 | struct PendingInlineReturn { |
| 254 | PendingInlineReturn(MGoto* jump, DefVector&& results) |
| 255 | : jump(jump), results(std::move(results)) {} |
| 256 | |
| 257 | MGoto* jump; |
| 258 | DefVector results; |
| 259 | }; |
| 260 | using PendingInlineReturnVector = |
| 261 | Vector<PendingInlineReturn, 1, SystemAllocPolicy>; |
| 262 | |
| 263 | // The caller function compiler, if any, that we are being inlined into. |
| 264 | const FunctionCompiler* callerCompiler_; |
| 265 | const uint32_t inliningDepth_; |
| 266 | const CompilerEnvironment& compilerEnv_; |
| 267 | const CodeMetadata& codeMeta_; |
| 268 | IonOpIter iter_; |
| 269 | uint32_t functionBodyOffset_; |
| 270 | const FuncCompileInput& func_; |
| 271 | const ValTypeVector& locals_; |
| 272 | size_t lastReadCallSite_; |
| 273 | |
| 274 | TempAllocator& alloc_; |
| 275 | MIRGraph& graph_; |
| 276 | const CompileInfo& info_; |
| 277 | MIRGenerator& mirGen_; |
| 278 | |
| 279 | MBasicBlock* curBlock_; |
| 280 | uint32_t maxStackArgBytes_; |
| 281 | |
| 282 | uint32_t loopDepth_; |
| 283 | uint32_t blockDepth_; |
| 284 | PendingBlockTargetVector pendingBlocks_; |
| 285 | // Control flow patches created by `delegate` instructions that target the |
| 286 | // outermost label of this function. These will be bound to a pad that will |
| 287 | // do a rethrow in `emitBodyDelegateThrowPad`. |
| 288 | ControlInstructionVector bodyDelegatePadPatches_; |
| 289 | // A vector of the returns in this function for use when we're being inlined |
| 290 | // into another function. |
| 291 | PendingInlineReturnVector pendingInlineReturns_; |
| 292 | |
| 293 | // Instance pointer argument to the current function. |
| 294 | MWasmParameter* instancePointer_; |
| 295 | MWasmParameter* stackResultPointer_; |
| 296 | |
| 297 | // Reference to masm.tryNotes_ |
| 298 | wasm::TryNoteVector& tryNotes_; |
| 299 | |
| 300 | // Reference to the top-level vector of CompileInfo to keep alive for this |
| 301 | // compilation. |
| 302 | UniqueCompileInfoVector& compileInfos_; |
| 303 | |
| 304 | // Cache of TryControl to minimize heap allocations |
| 305 | VectorUniqueTryControl tryControlCache_; |
| 306 | |
| 307 | public: |
| 308 | // Construct a FunctionCompiler for the top-level function of a compilation |
| 309 | FunctionCompiler(const CompilerEnvironment& compilerEnv, |
| 310 | const CodeMetadata& codeMeta, Decoder& decoder, |
| 311 | const FuncCompileInput& func, const ValTypeVector& locals, |
| 312 | MIRGenerator& mirGen, const CompileInfo& compileInfo, |
| 313 | TryNoteVector& tryNotes, |
| 314 | UniqueCompileInfoVector& compileInfos) |
| 315 | : callerCompiler_(nullptr), |
| 316 | inliningDepth_(0), |
| 317 | compilerEnv_(compilerEnv), |
| 318 | codeMeta_(codeMeta), |
| 319 | iter_(codeMeta, decoder), |
| 320 | functionBodyOffset_(decoder.beginOffset()), |
| 321 | func_(func), |
| 322 | locals_(locals), |
| 323 | lastReadCallSite_(0), |
| 324 | alloc_(mirGen.alloc()), |
| 325 | graph_(mirGen.graph()), |
| 326 | info_(compileInfo), |
| 327 | mirGen_(mirGen), |
| 328 | curBlock_(nullptr), |
| 329 | maxStackArgBytes_(0), |
| 330 | loopDepth_(0), |
| 331 | blockDepth_(0), |
| 332 | instancePointer_(nullptr), |
| 333 | stackResultPointer_(nullptr), |
| 334 | tryNotes_(tryNotes), |
| 335 | compileInfos_(compileInfos) {} |
| 336 | |
| 337 | // Construct a FunctionCompiler for an inlined callee of a compilation |
| 338 | FunctionCompiler(const FunctionCompiler* callerCompiler, Decoder& decoder, |
| 339 | const FuncCompileInput& func, const ValTypeVector& locals, |
| 340 | const CompileInfo& compileInfo) |
| 341 | : callerCompiler_(callerCompiler), |
| 342 | inliningDepth_(callerCompiler_->inliningDepth() + 1), |
| 343 | compilerEnv_(callerCompiler_->compilerEnv_), |
| 344 | codeMeta_(callerCompiler_->codeMeta_), |
| 345 | iter_(codeMeta_, decoder), |
| 346 | functionBodyOffset_(decoder.beginOffset()), |
| 347 | func_(func), |
| 348 | locals_(locals), |
| 349 | lastReadCallSite_(0), |
| 350 | alloc_(callerCompiler_->alloc_), |
| 351 | graph_(callerCompiler_->graph_), |
| 352 | info_(compileInfo), |
| 353 | mirGen_(callerCompiler_->mirGen_), |
| 354 | curBlock_(nullptr), |
| 355 | maxStackArgBytes_(0), |
| 356 | loopDepth_(callerCompiler_->loopDepth_), |
| 357 | blockDepth_(0), |
| 358 | instancePointer_(callerCompiler_->instancePointer_), |
| 359 | stackResultPointer_(nullptr), |
| 360 | tryNotes_(callerCompiler_->tryNotes_), |
| 361 | compileInfos_(callerCompiler_->compileInfos_) {} |
| 362 | |
| 363 | const CodeMetadata& codeMeta() const { return codeMeta_; } |
| 364 | |
| 365 | IonOpIter& iter() { return iter_; } |
| 366 | uint32_t relativeBytecodeOffset() { |
| 367 | return readBytecodeOffset() - functionBodyOffset_; |
| 368 | } |
| 369 | TempAllocator& alloc() const { return alloc_; } |
| 370 | // FIXME(1401675): Replace with BlockType. |
| 371 | uint32_t funcIndex() const { return func_.index; } |
| 372 | const FuncType& funcType() const { |
| 373 | return codeMeta_.getFuncType(func_.index); |
| 374 | } |
| 375 | |
| 376 | bool isInlined() const { return callerCompiler_ != nullptr; } |
| 377 | uint32_t inliningDepth() const { return inliningDepth_; } |
| 378 | |
| 379 | MBasicBlock* getCurBlock() const { return curBlock_; } |
| 380 | BytecodeOffset bytecodeOffset() const { return iter_.bytecodeOffset(); } |
| 381 | BytecodeOffset bytecodeIfNotAsmJS() const { |
| 382 | return codeMeta_.isAsmJS() ? BytecodeOffset() : iter_.bytecodeOffset(); |
| 383 | } |
| 384 | FeatureUsage featureUsage() const { return iter_.featureUsage(); } |
| 385 | |
| 386 | // Try to get a free TryControl from the cache, or allocate a new one. |
| 387 | [[nodiscard]] UniqueTryControl newTryControl() { |
| 388 | if (tryControlCache_.empty()) { |
| 389 | return UniqueTryControl(js_new<TryControl>()); |
| 390 | } |
| 391 | UniqueTryControl tryControl = std::move(tryControlCache_.back()); |
| 392 | tryControlCache_.popBack(); |
| 393 | return tryControl; |
| 394 | } |
| 395 | |
| 396 | // Release the TryControl to the cache. |
| 397 | void freeTryControl(UniqueTryControl&& tryControl) { |
| 398 | // Ensure that it's in a consistent state |
| 399 | tryControl->reset(); |
| 400 | // Ignore any OOM, as we'll fail later |
| 401 | (void)tryControlCache_.append(std::move(tryControl)); |
| 402 | } |
| 403 | |
| 404 | [[nodiscard]] bool initTopLevel() { |
| 405 | // Prepare the entry block for MIR generation: |
| 406 | |
| 407 | const ArgTypeVector args(funcType()); |
| 408 | |
| 409 | if (!mirGen_.ensureBallast()) { |
| 410 | return false; |
| 411 | } |
| 412 | if (!newBlock(/* prev */ nullptr, &curBlock_)) { |
| 413 | return false; |
| 414 | } |
| 415 | |
| 416 | for (WasmABIArgIter i(args); !i.done(); i++) { |
| 417 | MWasmParameter* ins = MWasmParameter::New(alloc(), *i, i.mirType()); |
| 418 | curBlock_->add(ins); |
| 419 | if (args.isSyntheticStackResultPointerArg(i.index())) { |
| 420 | MOZ_ASSERT(stackResultPointer_ == nullptr)do { static_assert( mozilla::detail::AssertionConditionType< decltype(stackResultPointer_ == nullptr)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(stackResultPointer_ == nullptr ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "stackResultPointer_ == nullptr", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 420); AnnotateMozCrashReason("MOZ_ASSERT" "(" "stackResultPointer_ == nullptr" ")"); do { *((volatile int*)__null) = 420; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 421 | stackResultPointer_ = ins; |
| 422 | } else { |
| 423 | curBlock_->initSlot(info().localSlot(args.naturalIndex(i.index())), |
| 424 | ins); |
| 425 | } |
| 426 | if (!mirGen_.ensureBallast()) { |
| 427 | return false; |
| 428 | } |
| 429 | } |
| 430 | |
| 431 | // Set up a parameter that receives the hidden instance pointer argument. |
| 432 | instancePointer_ = |
| 433 | MWasmParameter::New(alloc(), ABIArg(InstanceReg), MIRType::Pointer); |
| 434 | curBlock_->add(instancePointer_); |
| 435 | if (!mirGen_.ensureBallast()) { |
| 436 | return false; |
| 437 | } |
| 438 | |
| 439 | for (size_t i = args.lengthWithoutStackResults(); i < locals_.length(); |
| 440 | i++) { |
| 441 | ValType slotValType = locals_[i]; |
| 442 | #ifndef ENABLE_WASM_SIMD1 |
| 443 | if (slotValType == ValType::V128) { |
| 444 | return iter().fail("Ion has no SIMD support yet"); |
| 445 | } |
| 446 | #endif |
| 447 | MDefinition* zero = constantZeroOfValType(slotValType); |
| 448 | curBlock_->initSlot(info().localSlot(i), zero); |
| 449 | if (!mirGen_.ensureBallast()) { |
| 450 | return false; |
| 451 | } |
| 452 | } |
| 453 | |
| 454 | return true; |
| 455 | } |
| 456 | |
| 457 | [[nodiscard]] bool initInline(const DefVector& argValues) { |
| 458 | // Prepare the entry block for MIR generation: |
| 459 | if (!mirGen_.ensureBallast()) { |
| 460 | return false; |
| 461 | } |
| 462 | if (!newBlock(nullptr, &curBlock_)) { |
| 463 | return false; |
| 464 | } |
| 465 | |
| 466 | MBasicBlock* pred = callerCompiler_->curBlock_; |
| 467 | pred->end(MGoto::New(alloc(), curBlock_)); |
| 468 | if (!curBlock_->addPredecessorWithoutPhis(pred)) { |
| 469 | return false; |
| 470 | } |
| 471 | |
| 472 | // Set up args slots to point to passed argument values |
| 473 | const FuncType& type = funcType(); |
| 474 | for (uint32_t argIndex = 0; argIndex < type.args().length(); argIndex++) { |
| 475 | curBlock_->initSlot(info().localSlot(argIndex), argValues[argIndex]); |
| 476 | } |
| 477 | |
| 478 | // Set up a parameter that receives the hidden instance pointer argument. |
| 479 | instancePointer_ = callerCompiler_->instancePointer_; |
| 480 | |
| 481 | // Initialize all local slots to zero value |
| 482 | for (size_t i = type.args().length(); i < locals_.length(); i++) { |
| 483 | ValType slotValType = locals_[i]; |
| 484 | #ifndef ENABLE_WASM_SIMD1 |
| 485 | if (slotValType == ValType::V128) { |
| 486 | return iter().fail("Ion has no SIMD support yet"); |
| 487 | } |
| 488 | #endif |
| 489 | MDefinition* zero = constantZeroOfValType(slotValType); |
| 490 | curBlock_->initSlot(info().localSlot(i), zero); |
| 491 | if (!mirGen_.ensureBallast()) { |
| 492 | return false; |
| 493 | } |
| 494 | } |
| 495 | |
| 496 | return true; |
| 497 | } |
| 498 | |
| 499 | // Add a compile info for an inlined function. This keeps the inlined |
| 500 | // function's compile info alive for the outermost function's |
| 501 | // compilation. |
| 502 | [[nodiscard]] CompileInfo* addInlineCallInfo(uint32_t numLocals) { |
| 503 | UniqueCompileInfo compileInfo = MakeUnique<CompileInfo>(numLocals); |
| 504 | if (!compileInfo || !compileInfos_.append(std::move(compileInfo))) { |
| 505 | return nullptr; |
| 506 | } |
| 507 | return compileInfos_[compileInfos_.length() - 1].get(); |
| 508 | } |
| 509 | |
| 510 | void finish() { |
| 511 | mirGen().accumulateWasmMaxStackArgBytes(maxStackArgBytes_); |
| 512 | |
| 513 | MOZ_ASSERT(callerCompiler_ ? (loopDepth_ == callerCompiler_->loopDepth_)do { static_assert( mozilla::detail::AssertionConditionType< decltype(callerCompiler_ ? (loopDepth_ == callerCompiler_-> loopDepth_) : (loopDepth_ == 0))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(callerCompiler_ ? (loopDepth_ == callerCompiler_->loopDepth_) : (loopDepth_ == 0)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("callerCompiler_ ? (loopDepth_ == callerCompiler_->loopDepth_) : (loopDepth_ == 0)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 514); AnnotateMozCrashReason("MOZ_ASSERT" "(" "callerCompiler_ ? (loopDepth_ == callerCompiler_->loopDepth_) : (loopDepth_ == 0)" ")"); do { *((volatile int*)__null) = 514; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 514 | : (loopDepth_ == 0))do { static_assert( mozilla::detail::AssertionConditionType< decltype(callerCompiler_ ? (loopDepth_ == callerCompiler_-> loopDepth_) : (loopDepth_ == 0))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(callerCompiler_ ? (loopDepth_ == callerCompiler_->loopDepth_) : (loopDepth_ == 0)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("callerCompiler_ ? (loopDepth_ == callerCompiler_->loopDepth_) : (loopDepth_ == 0)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 514); AnnotateMozCrashReason("MOZ_ASSERT" "(" "callerCompiler_ ? (loopDepth_ == callerCompiler_->loopDepth_) : (loopDepth_ == 0)" ")"); do { *((volatile int*)__null) = 514; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 515 | MOZ_ASSERT(blockDepth_ == 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(blockDepth_ == 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(blockDepth_ == 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("blockDepth_ == 0" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 515); AnnotateMozCrashReason("MOZ_ASSERT" "(" "blockDepth_ == 0" ")"); do { *((volatile int*)__null) = 515; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 516 | #ifdef DEBUG1 |
| 517 | for (PendingBlockTarget& targets : pendingBlocks_) { |
| 518 | MOZ_ASSERT(targets.patches.empty())do { static_assert( mozilla::detail::AssertionConditionType< decltype(targets.patches.empty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(targets.patches.empty()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("targets.patches.empty()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 518); AnnotateMozCrashReason("MOZ_ASSERT" "(" "targets.patches.empty()" ")"); do { *((volatile int*)__null) = 518; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 519 | } |
| 520 | #endif |
| 521 | MOZ_ASSERT(inDeadCode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(inDeadCode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(inDeadCode()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("inDeadCode()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 521); AnnotateMozCrashReason("MOZ_ASSERT" "(" "inDeadCode()" ")"); do { *((volatile int*)__null) = 521; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 522 | MOZ_ASSERT(done())do { static_assert( mozilla::detail::AssertionConditionType< decltype(done())>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(done()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("done()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 522); AnnotateMozCrashReason("MOZ_ASSERT" "(" "done()" ")") ; do { *((volatile int*)__null) = 522; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 523 | MOZ_ASSERT(func_.callSiteLineNums.length() == lastReadCallSite_)do { static_assert( mozilla::detail::AssertionConditionType< decltype(func_.callSiteLineNums.length() == lastReadCallSite_ )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(func_.callSiteLineNums.length() == lastReadCallSite_ ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "func_.callSiteLineNums.length() == lastReadCallSite_", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 523); AnnotateMozCrashReason("MOZ_ASSERT" "(" "func_.callSiteLineNums.length() == lastReadCallSite_" ")"); do { *((volatile int*)__null) = 523; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 524 | } |
| 525 | |
| 526 | /************************* Read-only interface (after local scope setup) */ |
| 527 | |
| 528 | MIRGenerator& mirGen() const { return mirGen_; } |
| 529 | MIRGraph& mirGraph() const { return graph_; } |
| 530 | const CompileInfo& info() const { return info_; } |
| 531 | const CompilerEnvironment& compilerEnv() const { return compilerEnv_; } |
| 532 | |
| 533 | MDefinition* getLocalDef(unsigned slot) { |
| 534 | if (inDeadCode()) { |
| 535 | return nullptr; |
| 536 | } |
| 537 | return curBlock_->getSlot(info().localSlot(slot)); |
| 538 | } |
| 539 | |
| 540 | const ValTypeVector& locals() const { return locals_; } |
| 541 | |
| 542 | /*********************************************************** Constants ***/ |
| 543 | |
| 544 | MDefinition* constantF32(float f) { |
| 545 | if (inDeadCode()) { |
| 546 | return nullptr; |
| 547 | } |
| 548 | auto* cst = MWasmFloatConstant::NewFloat32(alloc(), f); |
| 549 | curBlock_->add(cst); |
| 550 | return cst; |
| 551 | } |
| 552 | // Hide all other overloads, to guarantee no implicit argument conversion. |
| 553 | template <typename T> |
| 554 | MDefinition* constantF32(T) = delete; |
| 555 | |
| 556 | MDefinition* constantF64(double d) { |
| 557 | if (inDeadCode()) { |
| 558 | return nullptr; |
| 559 | } |
| 560 | auto* cst = MWasmFloatConstant::NewDouble(alloc(), d); |
| 561 | curBlock_->add(cst); |
| 562 | return cst; |
| 563 | } |
| 564 | template <typename T> |
| 565 | MDefinition* constantF64(T) = delete; |
| 566 | |
| 567 | MDefinition* constantI32(int32_t i) { |
| 568 | if (inDeadCode()) { |
| 569 | return nullptr; |
| 570 | } |
| 571 | MConstant* constant = |
| 572 | MConstant::New(alloc(), Int32Value(i), MIRType::Int32); |
| 573 | curBlock_->add(constant); |
| 574 | return constant; |
| 575 | } |
| 576 | template <typename T> |
| 577 | MDefinition* constantI32(T) = delete; |
| 578 | |
| 579 | MDefinition* constantI64(int64_t i) { |
| 580 | if (inDeadCode()) { |
| 581 | return nullptr; |
| 582 | } |
| 583 | MConstant* constant = MConstant::NewInt64(alloc(), i); |
| 584 | curBlock_->add(constant); |
| 585 | return constant; |
| 586 | } |
| 587 | template <typename T> |
| 588 | MDefinition* constantI64(T) = delete; |
| 589 | |
| 590 | // Produce an MConstant of the machine's target int type (Int32 or Int64). |
| 591 | MDefinition* constantTargetWord(intptr_t n) { |
| 592 | return targetIs64Bit() ? constantI64(int64_t(n)) : constantI32(int32_t(n)); |
| 593 | } |
| 594 | template <typename T> |
| 595 | MDefinition* constantTargetWord(T) = delete; |
| 596 | |
| 597 | #ifdef ENABLE_WASM_SIMD1 |
| 598 | MDefinition* constantV128(V128 v) { |
| 599 | if (inDeadCode()) { |
| 600 | return nullptr; |
| 601 | } |
| 602 | MWasmFloatConstant* constant = MWasmFloatConstant::NewSimd128( |
| 603 | alloc(), SimdConstant::CreateSimd128((int8_t*)v.bytes)); |
| 604 | curBlock_->add(constant); |
| 605 | return constant; |
| 606 | } |
| 607 | template <typename T> |
| 608 | MDefinition* constantV128(T) = delete; |
| 609 | #endif |
| 610 | |
| 611 | MDefinition* constantNullRef() { |
| 612 | if (inDeadCode()) { |
| 613 | return nullptr; |
| 614 | } |
| 615 | // MConstant has a lot of baggage so we don't use that here. |
| 616 | MWasmNullConstant* constant = MWasmNullConstant::New(alloc()); |
| 617 | curBlock_->add(constant); |
| 618 | return constant; |
| 619 | } |
| 620 | |
| 621 | // Produce a zero constant for the specified ValType. |
| 622 | MDefinition* constantZeroOfValType(ValType valType) { |
| 623 | switch (valType.kind()) { |
| 624 | case ValType::I32: |
| 625 | return constantI32(0); |
| 626 | case ValType::I64: |
| 627 | return constantI64(int64_t(0)); |
| 628 | #ifdef ENABLE_WASM_SIMD1 |
| 629 | case ValType::V128: |
| 630 | return constantV128(V128(0)); |
| 631 | #endif |
| 632 | case ValType::F32: |
| 633 | return constantF32(0.0f); |
| 634 | case ValType::F64: |
| 635 | return constantF64(0.0); |
| 636 | case ValType::Ref: |
| 637 | return constantNullRef(); |
| 638 | default: |
| 639 | MOZ_CRASH()do { do { } while (false); MOZ_ReportCrash("" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 639); AnnotateMozCrashReason("MOZ_CRASH(" ")"); do { *((volatile int*)__null) = 639; __attribute__((nomerge)) ::abort(); } while (false); } while (false); |
| 640 | } |
| 641 | } |
| 642 | |
| 643 | /***************************** Code generation (after local scope setup) */ |
| 644 | |
| 645 | void fence() { |
| 646 | if (inDeadCode()) { |
| 647 | return; |
| 648 | } |
| 649 | MWasmFence* ins = MWasmFence::New(alloc()); |
| 650 | curBlock_->add(ins); |
| 651 | } |
| 652 | |
| 653 | template <class T> |
| 654 | MDefinition* unary(MDefinition* op) { |
| 655 | if (inDeadCode()) { |
| 656 | return nullptr; |
| 657 | } |
| 658 | T* ins = T::New(alloc(), op); |
| 659 | curBlock_->add(ins); |
| 660 | return ins; |
| 661 | } |
| 662 | |
| 663 | template <class T> |
| 664 | MDefinition* unary(MDefinition* op, MIRType type) { |
| 665 | if (inDeadCode()) { |
| 666 | return nullptr; |
| 667 | } |
| 668 | T* ins = T::New(alloc(), op, type); |
| 669 | curBlock_->add(ins); |
| 670 | return ins; |
| 671 | } |
| 672 | |
| 673 | template <class T> |
| 674 | MDefinition* binary(MDefinition* lhs, MDefinition* rhs) { |
| 675 | if (inDeadCode()) { |
| 676 | return nullptr; |
| 677 | } |
| 678 | T* ins = T::New(alloc(), lhs, rhs); |
| 679 | curBlock_->add(ins); |
| 680 | return ins; |
| 681 | } |
| 682 | |
| 683 | template <class T> |
| 684 | MDefinition* binary(MDefinition* lhs, MDefinition* rhs, MIRType type) { |
| 685 | if (inDeadCode()) { |
| 686 | return nullptr; |
| 687 | } |
| 688 | T* ins = T::New(alloc(), lhs, rhs, type); |
| 689 | curBlock_->add(ins); |
| 690 | return ins; |
| 691 | } |
| 692 | |
| 693 | template <class T> |
| 694 | MDefinition* binary(MDefinition* lhs, MDefinition* rhs, MIRType type, |
| 695 | MWasmBinaryBitwise::SubOpcode subOpc) { |
| 696 | if (inDeadCode()) { |
| 697 | return nullptr; |
| 698 | } |
| 699 | T* ins = T::New(alloc(), lhs, rhs, type, subOpc); |
| 700 | curBlock_->add(ins); |
| 701 | return ins; |
| 702 | } |
| 703 | |
| 704 | MDefinition* ursh(MDefinition* lhs, MDefinition* rhs, MIRType type) { |
| 705 | if (inDeadCode()) { |
| 706 | return nullptr; |
| 707 | } |
| 708 | auto* ins = MUrsh::NewWasm(alloc(), lhs, rhs, type); |
| 709 | curBlock_->add(ins); |
| 710 | return ins; |
| 711 | } |
| 712 | |
| 713 | MDefinition* add(MDefinition* lhs, MDefinition* rhs, MIRType type) { |
| 714 | if (inDeadCode()) { |
| 715 | return nullptr; |
| 716 | } |
| 717 | auto* ins = MAdd::NewWasm(alloc(), lhs, rhs, type); |
| 718 | curBlock_->add(ins); |
| 719 | return ins; |
| 720 | } |
| 721 | |
| 722 | bool mustPreserveNaN(MIRType type) { |
| 723 | return IsFloatingPointType(type) && !codeMeta().isAsmJS(); |
| 724 | } |
| 725 | |
| 726 | MDefinition* sub(MDefinition* lhs, MDefinition* rhs, MIRType type) { |
| 727 | if (inDeadCode()) { |
| 728 | return nullptr; |
| 729 | } |
| 730 | |
| 731 | // wasm can't fold x - 0.0 because of NaN with custom payloads. |
| 732 | MSub* ins = MSub::NewWasm(alloc(), lhs, rhs, type, mustPreserveNaN(type)); |
| 733 | curBlock_->add(ins); |
| 734 | return ins; |
| 735 | } |
| 736 | |
| 737 | MDefinition* nearbyInt(MDefinition* input, RoundingMode roundingMode) { |
| 738 | if (inDeadCode()) { |
| 739 | return nullptr; |
| 740 | } |
| 741 | |
| 742 | auto* ins = MNearbyInt::New(alloc(), input, input->type(), roundingMode); |
| 743 | curBlock_->add(ins); |
| 744 | return ins; |
| 745 | } |
| 746 | |
| 747 | MDefinition* minMax(MDefinition* lhs, MDefinition* rhs, MIRType type, |
| 748 | bool isMax) { |
| 749 | if (inDeadCode()) { |
| 750 | return nullptr; |
| 751 | } |
| 752 | |
| 753 | if (mustPreserveNaN(type)) { |
| 754 | // Convert signaling NaN to quiet NaNs. |
| 755 | MDefinition* zero = constantZeroOfValType(ValType::fromMIRType(type)); |
| 756 | lhs = sub(lhs, zero, type); |
| 757 | rhs = sub(rhs, zero, type); |
| 758 | } |
| 759 | |
| 760 | MMinMax* ins = MMinMax::NewWasm(alloc(), lhs, rhs, type, isMax); |
| 761 | curBlock_->add(ins); |
| 762 | return ins; |
| 763 | } |
| 764 | |
| 765 | MDefinition* mul(MDefinition* lhs, MDefinition* rhs, MIRType type, |
| 766 | MMul::Mode mode) { |
| 767 | if (inDeadCode()) { |
| 768 | return nullptr; |
| 769 | } |
| 770 | |
| 771 | // wasm can't fold x * 1.0 because of NaN with custom payloads. |
| 772 | auto* ins = |
| 773 | MMul::NewWasm(alloc(), lhs, rhs, type, mode, mustPreserveNaN(type)); |
| 774 | curBlock_->add(ins); |
| 775 | return ins; |
| 776 | } |
| 777 | |
| 778 | MDefinition* div(MDefinition* lhs, MDefinition* rhs, MIRType type, |
| 779 | bool unsignd) { |
| 780 | if (inDeadCode()) { |
| 781 | return nullptr; |
| 782 | } |
| 783 | bool trapOnError = !codeMeta().isAsmJS(); |
| 784 | if (!unsignd && type == MIRType::Int32) { |
| 785 | // Enforce the signedness of the operation by coercing the operands |
| 786 | // to signed. Otherwise, operands that "look" unsigned to Ion but |
| 787 | // are not unsigned to Baldr (eg, unsigned right shifts) may lead to |
| 788 | // the operation being executed unsigned. Applies to mod() as well. |
| 789 | // |
| 790 | // Do this for Int32 only since Int64 is not subject to the same |
| 791 | // issues. |
| 792 | // |
| 793 | // Note the offsets passed to MWasmBuiltinTruncateToInt32 are wrong here, |
| 794 | // but it doesn't matter: they're not codegen'd to calls since inputs |
| 795 | // already are int32. |
| 796 | auto* lhs2 = createTruncateToInt32(lhs); |
| 797 | curBlock_->add(lhs2); |
| 798 | lhs = lhs2; |
| 799 | auto* rhs2 = createTruncateToInt32(rhs); |
| 800 | curBlock_->add(rhs2); |
| 801 | rhs = rhs2; |
| 802 | } |
| 803 | |
| 804 | // For x86 and arm we implement i64 div via c++ builtin. |
| 805 | // A call to c++ builtin requires instance pointer. |
| 806 | #if defined(JS_CODEGEN_X86) || defined(JS_CODEGEN_ARM) |
| 807 | if (type == MIRType::Int64) { |
| 808 | auto* ins = |
| 809 | MWasmBuiltinDivI64::New(alloc(), lhs, rhs, instancePointer_, unsignd, |
| 810 | trapOnError, bytecodeOffset()); |
| 811 | curBlock_->add(ins); |
| 812 | return ins; |
| 813 | } |
| 814 | #endif |
| 815 | |
| 816 | auto* ins = MDiv::New(alloc(), lhs, rhs, type, unsignd, trapOnError, |
| 817 | bytecodeOffset(), mustPreserveNaN(type)); |
| 818 | curBlock_->add(ins); |
| 819 | return ins; |
| 820 | } |
| 821 | |
| 822 | MInstruction* createTruncateToInt32(MDefinition* op) { |
| 823 | if (op->type() == MIRType::Double || op->type() == MIRType::Float32) { |
| 824 | return MWasmBuiltinTruncateToInt32::New(alloc(), op, instancePointer_); |
| 825 | } |
| 826 | |
| 827 | return MTruncateToInt32::New(alloc(), op); |
| 828 | } |
| 829 | |
| 830 | MDefinition* mod(MDefinition* lhs, MDefinition* rhs, MIRType type, |
| 831 | bool unsignd) { |
| 832 | if (inDeadCode()) { |
| 833 | return nullptr; |
| 834 | } |
| 835 | bool trapOnError = !codeMeta().isAsmJS(); |
| 836 | if (!unsignd && type == MIRType::Int32) { |
| 837 | // See block comment in div(). |
| 838 | auto* lhs2 = createTruncateToInt32(lhs); |
| 839 | curBlock_->add(lhs2); |
| 840 | lhs = lhs2; |
| 841 | auto* rhs2 = createTruncateToInt32(rhs); |
| 842 | curBlock_->add(rhs2); |
| 843 | rhs = rhs2; |
| 844 | } |
| 845 | |
| 846 | // For x86 and arm we implement i64 mod via c++ builtin. |
| 847 | // A call to c++ builtin requires instance pointer. |
| 848 | #if defined(JS_CODEGEN_X86) || defined(JS_CODEGEN_ARM) |
| 849 | if (type == MIRType::Int64) { |
| 850 | auto* ins = |
| 851 | MWasmBuiltinModI64::New(alloc(), lhs, rhs, instancePointer_, unsignd, |
| 852 | trapOnError, bytecodeOffset()); |
| 853 | curBlock_->add(ins); |
| 854 | return ins; |
| 855 | } |
| 856 | #endif |
| 857 | |
| 858 | // Should be handled separately because we call BuiltinThunk for this case |
| 859 | // and so, need to add the dependency from instancePointer. |
| 860 | if (type == MIRType::Double) { |
| 861 | auto* ins = MWasmBuiltinModD::New(alloc(), lhs, rhs, instancePointer_, |
| 862 | type, bytecodeOffset()); |
| 863 | curBlock_->add(ins); |
| 864 | return ins; |
| 865 | } |
| 866 | |
| 867 | auto* ins = MMod::New(alloc(), lhs, rhs, type, unsignd, trapOnError, |
| 868 | bytecodeOffset()); |
| 869 | curBlock_->add(ins); |
| 870 | return ins; |
| 871 | } |
| 872 | |
| 873 | MDefinition* bitnot(MDefinition* op) { |
| 874 | if (inDeadCode()) { |
| 875 | return nullptr; |
| 876 | } |
| 877 | auto* ins = MBitNot::New(alloc(), op); |
| 878 | curBlock_->add(ins); |
| 879 | return ins; |
| 880 | } |
| 881 | |
| 882 | MDefinition* select(MDefinition* trueExpr, MDefinition* falseExpr, |
| 883 | MDefinition* condExpr) { |
| 884 | if (inDeadCode()) { |
| 885 | return nullptr; |
| 886 | } |
| 887 | auto* ins = MWasmSelect::New(alloc(), trueExpr, falseExpr, condExpr); |
| 888 | curBlock_->add(ins); |
| 889 | return ins; |
| 890 | } |
| 891 | |
| 892 | MDefinition* extendI32(MDefinition* op, bool isUnsigned) { |
| 893 | if (inDeadCode()) { |
| 894 | return nullptr; |
| 895 | } |
| 896 | auto* ins = MExtendInt32ToInt64::New(alloc(), op, isUnsigned); |
| 897 | curBlock_->add(ins); |
| 898 | return ins; |
| 899 | } |
| 900 | |
| 901 | MDefinition* signExtend(MDefinition* op, uint32_t srcSize, |
| 902 | uint32_t targetSize) { |
| 903 | if (inDeadCode()) { |
| 904 | return nullptr; |
| 905 | } |
| 906 | MInstruction* ins; |
| 907 | switch (targetSize) { |
| 908 | case 4: { |
| 909 | MSignExtendInt32::Mode mode; |
| 910 | switch (srcSize) { |
| 911 | case 1: |
| 912 | mode = MSignExtendInt32::Byte; |
| 913 | break; |
| 914 | case 2: |
| 915 | mode = MSignExtendInt32::Half; |
| 916 | break; |
| 917 | default: |
| 918 | MOZ_CRASH("Bad sign extension")do { do { } while (false); MOZ_ReportCrash("" "Bad sign extension" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 918); AnnotateMozCrashReason("MOZ_CRASH(" "Bad sign extension" ")"); do { *((volatile int*)__null) = 918; __attribute__((nomerge )) ::abort(); } while (false); } while (false); |
| 919 | } |
| 920 | ins = MSignExtendInt32::New(alloc(), op, mode); |
| 921 | break; |
| 922 | } |
| 923 | case 8: { |
| 924 | MSignExtendInt64::Mode mode; |
| 925 | switch (srcSize) { |
| 926 | case 1: |
| 927 | mode = MSignExtendInt64::Byte; |
| 928 | break; |
| 929 | case 2: |
| 930 | mode = MSignExtendInt64::Half; |
| 931 | break; |
| 932 | case 4: |
| 933 | mode = MSignExtendInt64::Word; |
| 934 | break; |
| 935 | default: |
| 936 | MOZ_CRASH("Bad sign extension")do { do { } while (false); MOZ_ReportCrash("" "Bad sign extension" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 936); AnnotateMozCrashReason("MOZ_CRASH(" "Bad sign extension" ")"); do { *((volatile int*)__null) = 936; __attribute__((nomerge )) ::abort(); } while (false); } while (false); |
| 937 | } |
| 938 | ins = MSignExtendInt64::New(alloc(), op, mode); |
| 939 | break; |
| 940 | } |
| 941 | default: { |
| 942 | MOZ_CRASH("Bad sign extension")do { do { } while (false); MOZ_ReportCrash("" "Bad sign extension" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 942); AnnotateMozCrashReason("MOZ_CRASH(" "Bad sign extension" ")"); do { *((volatile int*)__null) = 942; __attribute__((nomerge )) ::abort(); } while (false); } while (false); |
| 943 | } |
| 944 | } |
| 945 | curBlock_->add(ins); |
| 946 | return ins; |
| 947 | } |
| 948 | |
| 949 | MDefinition* convertI64ToFloatingPoint(MDefinition* op, MIRType type, |
| 950 | bool isUnsigned) { |
| 951 | if (inDeadCode()) { |
| 952 | return nullptr; |
| 953 | } |
| 954 | #if defined(JS_CODEGEN_ARM) |
| 955 | auto* ins = MBuiltinInt64ToFloatingPoint::New( |
| 956 | alloc(), op, instancePointer_, type, bytecodeOffset(), isUnsigned); |
| 957 | #else |
| 958 | auto* ins = MInt64ToFloatingPoint::New(alloc(), op, type, bytecodeOffset(), |
| 959 | isUnsigned); |
| 960 | #endif |
| 961 | curBlock_->add(ins); |
| 962 | return ins; |
| 963 | } |
| 964 | |
| 965 | MDefinition* rotate(MDefinition* input, MDefinition* count, MIRType type, |
| 966 | bool left) { |
| 967 | if (inDeadCode()) { |
| 968 | return nullptr; |
| 969 | } |
| 970 | auto* ins = MRotate::New(alloc(), input, count, type, left); |
| 971 | curBlock_->add(ins); |
| 972 | return ins; |
| 973 | } |
| 974 | |
| 975 | template <class T> |
| 976 | MDefinition* truncate(MDefinition* op, TruncFlags flags) { |
| 977 | if (inDeadCode()) { |
| 978 | return nullptr; |
| 979 | } |
| 980 | auto* ins = T::New(alloc(), op, flags, bytecodeOffset()); |
| 981 | curBlock_->add(ins); |
| 982 | return ins; |
| 983 | } |
| 984 | |
| 985 | #if defined(JS_CODEGEN_ARM) |
| 986 | MDefinition* truncateWithInstance(MDefinition* op, TruncFlags flags) { |
| 987 | if (inDeadCode()) { |
| 988 | return nullptr; |
| 989 | } |
| 990 | auto* ins = MWasmBuiltinTruncateToInt64::New(alloc(), op, instancePointer_, |
| 991 | flags, bytecodeOffset()); |
| 992 | curBlock_->add(ins); |
| 993 | return ins; |
| 994 | } |
| 995 | #endif |
| 996 | |
| 997 | MDefinition* compare(MDefinition* lhs, MDefinition* rhs, JSOp op, |
| 998 | MCompare::CompareType type) { |
| 999 | if (inDeadCode()) { |
| 1000 | return nullptr; |
| 1001 | } |
| 1002 | auto* ins = MCompare::NewWasm(alloc(), lhs, rhs, op, type); |
| 1003 | curBlock_->add(ins); |
| 1004 | return ins; |
| 1005 | } |
| 1006 | |
| 1007 | void assign(unsigned slot, MDefinition* def) { |
| 1008 | if (inDeadCode()) { |
| 1009 | return; |
| 1010 | } |
| 1011 | curBlock_->setSlot(info().localSlot(slot), def); |
| 1012 | } |
| 1013 | |
| 1014 | MDefinition* compareIsNull(MDefinition* ref, JSOp compareOp) { |
| 1015 | MDefinition* nullVal = constantNullRef(); |
| 1016 | if (!nullVal) { |
| 1017 | return nullptr; |
| 1018 | } |
| 1019 | return compare(ref, nullVal, compareOp, MCompare::Compare_WasmAnyRef); |
| 1020 | } |
| 1021 | |
| 1022 | [[nodiscard]] bool refAsNonNull(MDefinition* ref) { |
| 1023 | if (inDeadCode()) { |
| 1024 | return true; |
| 1025 | } |
| 1026 | |
| 1027 | auto* ins = MWasmTrapIfNull::New( |
| 1028 | alloc(), ref, wasm::Trap::NullPointerDereference, bytecodeOffset()); |
| 1029 | |
| 1030 | curBlock_->add(ins); |
| 1031 | return true; |
| 1032 | } |
| 1033 | |
| 1034 | #ifdef ENABLE_WASM_GC1 |
| 1035 | [[nodiscard]] bool brOnNull(uint32_t relativeDepth, const DefVector& values, |
| 1036 | const ResultType& type, MDefinition* condition) { |
| 1037 | if (inDeadCode()) { |
| 1038 | return true; |
| 1039 | } |
| 1040 | |
| 1041 | MBasicBlock* fallthroughBlock = nullptr; |
| 1042 | if (!newBlock(curBlock_, &fallthroughBlock)) { |
| 1043 | return false; |
| 1044 | } |
| 1045 | |
| 1046 | MDefinition* check = compareIsNull(condition, JSOp::Eq); |
| 1047 | if (!check) { |
| 1048 | return false; |
| 1049 | } |
| 1050 | MTest* test = MTest::New(alloc(), check, nullptr, fallthroughBlock); |
| 1051 | if (!test || |
| 1052 | !addControlFlowPatch(test, relativeDepth, MTest::TrueBranchIndex)) { |
| 1053 | return false; |
| 1054 | } |
| 1055 | |
| 1056 | if (!pushDefs(values)) { |
| 1057 | return false; |
| 1058 | } |
| 1059 | |
| 1060 | curBlock_->end(test); |
| 1061 | curBlock_ = fallthroughBlock; |
| 1062 | return true; |
| 1063 | } |
| 1064 | |
| 1065 | [[nodiscard]] bool brOnNonNull(uint32_t relativeDepth, |
| 1066 | const DefVector& values, |
| 1067 | const ResultType& type, |
| 1068 | MDefinition* condition) { |
| 1069 | if (inDeadCode()) { |
| 1070 | return true; |
| 1071 | } |
| 1072 | |
| 1073 | MBasicBlock* fallthroughBlock = nullptr; |
| 1074 | if (!newBlock(curBlock_, &fallthroughBlock)) { |
| 1075 | return false; |
| 1076 | } |
| 1077 | |
| 1078 | MDefinition* check = compareIsNull(condition, JSOp::Ne); |
| 1079 | if (!check) { |
| 1080 | return false; |
| 1081 | } |
| 1082 | MTest* test = MTest::New(alloc(), check, nullptr, fallthroughBlock); |
| 1083 | if (!test || |
| 1084 | !addControlFlowPatch(test, relativeDepth, MTest::TrueBranchIndex)) { |
| 1085 | return false; |
| 1086 | } |
| 1087 | |
| 1088 | if (!pushDefs(values)) { |
| 1089 | return false; |
| 1090 | } |
| 1091 | |
| 1092 | curBlock_->end(test); |
| 1093 | curBlock_ = fallthroughBlock; |
| 1094 | return true; |
| 1095 | } |
| 1096 | |
| 1097 | #endif // ENABLE_WASM_GC |
| 1098 | |
| 1099 | #ifdef ENABLE_WASM_GC1 |
| 1100 | MDefinition* refI31(MDefinition* input) { |
| 1101 | auto* ins = MWasmNewI31Ref::New(alloc(), input); |
| 1102 | curBlock_->add(ins); |
| 1103 | return ins; |
| 1104 | } |
| 1105 | |
| 1106 | MDefinition* i31Get(MDefinition* input, FieldWideningOp wideningOp) { |
| 1107 | auto* ins = MWasmI31RefGet::New(alloc(), input, wideningOp); |
| 1108 | curBlock_->add(ins); |
| 1109 | return ins; |
| 1110 | } |
| 1111 | #endif // ENABLE_WASM_GC |
| 1112 | |
| 1113 | #ifdef ENABLE_WASM_SIMD1 |
| 1114 | // About Wasm SIMD as supported by Ion: |
| 1115 | // |
| 1116 | // The expectation is that Ion will only ever support SIMD on x86 and x64, |
| 1117 | // since ARMv7 will cease to be a tier-1 platform soon, and MIPS64 will never |
| 1118 | // implement SIMD. |
| 1119 | // |
| 1120 | // The division of the operations into MIR nodes reflects that expectation, |
| 1121 | // and is a good fit for x86/x64. Should the expectation change we'll |
| 1122 | // possibly want to re-architect the SIMD support to be a little more general. |
| 1123 | // |
| 1124 | // Most SIMD operations map directly to a single MIR node that ultimately ends |
| 1125 | // up being expanded in the macroassembler. |
| 1126 | // |
| 1127 | // Some SIMD operations that do have a complete macroassembler expansion are |
| 1128 | // open-coded into multiple MIR nodes here; in some cases that's just |
| 1129 | // convenience, in other cases it may also allow them to benefit from Ion |
| 1130 | // optimizations. The reason for the expansions will be documented by a |
| 1131 | // comment. |
| 1132 | |
| 1133 | // (v128,v128) -> v128 effect-free binary operations |
| 1134 | MDefinition* binarySimd128(MDefinition* lhs, MDefinition* rhs, |
| 1135 | bool commutative, SimdOp op) { |
| 1136 | if (inDeadCode()) { |
| 1137 | return nullptr; |
| 1138 | } |
| 1139 | |
| 1140 | MOZ_ASSERT(lhs->type() == MIRType::Simd128 &&do { static_assert( mozilla::detail::AssertionConditionType< decltype(lhs->type() == MIRType::Simd128 && rhs-> type() == MIRType::Simd128)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(lhs->type() == MIRType::Simd128 && rhs->type() == MIRType::Simd128))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("lhs->type() == MIRType::Simd128 && rhs->type() == MIRType::Simd128" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1141); AnnotateMozCrashReason("MOZ_ASSERT" "(" "lhs->type() == MIRType::Simd128 && rhs->type() == MIRType::Simd128" ")"); do { *((volatile int*)__null) = 1141; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1141 | rhs->type() == MIRType::Simd128)do { static_assert( mozilla::detail::AssertionConditionType< decltype(lhs->type() == MIRType::Simd128 && rhs-> type() == MIRType::Simd128)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(lhs->type() == MIRType::Simd128 && rhs->type() == MIRType::Simd128))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("lhs->type() == MIRType::Simd128 && rhs->type() == MIRType::Simd128" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1141); AnnotateMozCrashReason("MOZ_ASSERT" "(" "lhs->type() == MIRType::Simd128 && rhs->type() == MIRType::Simd128" ")"); do { *((volatile int*)__null) = 1141; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1142 | |
| 1143 | auto* ins = MWasmBinarySimd128::New(alloc(), lhs, rhs, commutative, op); |
| 1144 | curBlock_->add(ins); |
| 1145 | return ins; |
| 1146 | } |
| 1147 | |
| 1148 | // (v128,i32) -> v128 effect-free shift operations |
| 1149 | MDefinition* shiftSimd128(MDefinition* lhs, MDefinition* rhs, SimdOp op) { |
| 1150 | if (inDeadCode()) { |
| 1151 | return nullptr; |
| 1152 | } |
| 1153 | |
| 1154 | MOZ_ASSERT(lhs->type() == MIRType::Simd128 &&do { static_assert( mozilla::detail::AssertionConditionType< decltype(lhs->type() == MIRType::Simd128 && rhs-> type() == MIRType::Int32)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(lhs->type() == MIRType::Simd128 && rhs->type() == MIRType::Int32))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("lhs->type() == MIRType::Simd128 && rhs->type() == MIRType::Int32" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1155); AnnotateMozCrashReason("MOZ_ASSERT" "(" "lhs->type() == MIRType::Simd128 && rhs->type() == MIRType::Int32" ")"); do { *((volatile int*)__null) = 1155; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1155 | rhs->type() == MIRType::Int32)do { static_assert( mozilla::detail::AssertionConditionType< decltype(lhs->type() == MIRType::Simd128 && rhs-> type() == MIRType::Int32)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(lhs->type() == MIRType::Simd128 && rhs->type() == MIRType::Int32))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("lhs->type() == MIRType::Simd128 && rhs->type() == MIRType::Int32" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1155); AnnotateMozCrashReason("MOZ_ASSERT" "(" "lhs->type() == MIRType::Simd128 && rhs->type() == MIRType::Int32" ")"); do { *((volatile int*)__null) = 1155; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1156 | |
| 1157 | int32_t maskBits; |
| 1158 | if (MacroAssembler::MustMaskShiftCountSimd128(op, &maskBits)) { |
| 1159 | MDefinition* mask = constantI32(maskBits); |
| 1160 | auto* rhs2 = MBitAnd::New(alloc(), rhs, mask, MIRType::Int32); |
| 1161 | curBlock_->add(rhs2); |
| 1162 | rhs = rhs2; |
| 1163 | } |
| 1164 | |
| 1165 | auto* ins = MWasmShiftSimd128::New(alloc(), lhs, rhs, op); |
| 1166 | curBlock_->add(ins); |
| 1167 | return ins; |
| 1168 | } |
| 1169 | |
| 1170 | // (v128,scalar,imm) -> v128 |
| 1171 | MDefinition* replaceLaneSimd128(MDefinition* lhs, MDefinition* rhs, |
| 1172 | uint32_t laneIndex, SimdOp op) { |
| 1173 | if (inDeadCode()) { |
| 1174 | return nullptr; |
| 1175 | } |
| 1176 | |
| 1177 | MOZ_ASSERT(lhs->type() == MIRType::Simd128)do { static_assert( mozilla::detail::AssertionConditionType< decltype(lhs->type() == MIRType::Simd128)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(lhs->type() == MIRType::Simd128 ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "lhs->type() == MIRType::Simd128", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1177); AnnotateMozCrashReason("MOZ_ASSERT" "(" "lhs->type() == MIRType::Simd128" ")"); do { *((volatile int*)__null) = 1177; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1178 | |
| 1179 | auto* ins = MWasmReplaceLaneSimd128::New(alloc(), lhs, rhs, laneIndex, op); |
| 1180 | curBlock_->add(ins); |
| 1181 | return ins; |
| 1182 | } |
| 1183 | |
| 1184 | // (scalar) -> v128 effect-free unary operations |
| 1185 | MDefinition* scalarToSimd128(MDefinition* src, SimdOp op) { |
| 1186 | if (inDeadCode()) { |
| 1187 | return nullptr; |
| 1188 | } |
| 1189 | |
| 1190 | auto* ins = MWasmScalarToSimd128::New(alloc(), src, op); |
| 1191 | curBlock_->add(ins); |
| 1192 | return ins; |
| 1193 | } |
| 1194 | |
| 1195 | // (v128) -> v128 effect-free unary operations |
| 1196 | MDefinition* unarySimd128(MDefinition* src, SimdOp op) { |
| 1197 | if (inDeadCode()) { |
| 1198 | return nullptr; |
| 1199 | } |
| 1200 | |
| 1201 | MOZ_ASSERT(src->type() == MIRType::Simd128)do { static_assert( mozilla::detail::AssertionConditionType< decltype(src->type() == MIRType::Simd128)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(src->type() == MIRType::Simd128 ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "src->type() == MIRType::Simd128", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1201); AnnotateMozCrashReason("MOZ_ASSERT" "(" "src->type() == MIRType::Simd128" ")"); do { *((volatile int*)__null) = 1201; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1202 | auto* ins = MWasmUnarySimd128::New(alloc(), src, op); |
| 1203 | curBlock_->add(ins); |
| 1204 | return ins; |
| 1205 | } |
| 1206 | |
| 1207 | // (v128, imm) -> scalar effect-free unary operations |
| 1208 | MDefinition* reduceSimd128(MDefinition* src, SimdOp op, ValType outType, |
| 1209 | uint32_t imm = 0) { |
| 1210 | if (inDeadCode()) { |
| 1211 | return nullptr; |
| 1212 | } |
| 1213 | |
| 1214 | MOZ_ASSERT(src->type() == MIRType::Simd128)do { static_assert( mozilla::detail::AssertionConditionType< decltype(src->type() == MIRType::Simd128)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(src->type() == MIRType::Simd128 ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "src->type() == MIRType::Simd128", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1214); AnnotateMozCrashReason("MOZ_ASSERT" "(" "src->type() == MIRType::Simd128" ")"); do { *((volatile int*)__null) = 1214; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1215 | auto* ins = |
| 1216 | MWasmReduceSimd128::New(alloc(), src, op, outType.toMIRType(), imm); |
| 1217 | curBlock_->add(ins); |
| 1218 | return ins; |
| 1219 | } |
| 1220 | |
| 1221 | // (v128, v128, v128) -> v128 effect-free operations |
| 1222 | MDefinition* ternarySimd128(MDefinition* v0, MDefinition* v1, MDefinition* v2, |
| 1223 | SimdOp op) { |
| 1224 | if (inDeadCode()) { |
| 1225 | return nullptr; |
| 1226 | } |
| 1227 | |
| 1228 | MOZ_ASSERT(v0->type() == MIRType::Simd128 &&do { static_assert( mozilla::detail::AssertionConditionType< decltype(v0->type() == MIRType::Simd128 && v1-> type() == MIRType::Simd128 && v2->type() == MIRType ::Simd128)>::isValid, "invalid assertion condition"); if ( (__builtin_expect(!!(!(!!(v0->type() == MIRType::Simd128 && v1->type() == MIRType::Simd128 && v2->type() == MIRType::Simd128))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("v0->type() == MIRType::Simd128 && v1->type() == MIRType::Simd128 && v2->type() == MIRType::Simd128" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1230); AnnotateMozCrashReason("MOZ_ASSERT" "(" "v0->type() == MIRType::Simd128 && v1->type() == MIRType::Simd128 && v2->type() == MIRType::Simd128" ")"); do { *((volatile int*)__null) = 1230; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1229 | v1->type() == MIRType::Simd128 &&do { static_assert( mozilla::detail::AssertionConditionType< decltype(v0->type() == MIRType::Simd128 && v1-> type() == MIRType::Simd128 && v2->type() == MIRType ::Simd128)>::isValid, "invalid assertion condition"); if ( (__builtin_expect(!!(!(!!(v0->type() == MIRType::Simd128 && v1->type() == MIRType::Simd128 && v2->type() == MIRType::Simd128))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("v0->type() == MIRType::Simd128 && v1->type() == MIRType::Simd128 && v2->type() == MIRType::Simd128" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1230); AnnotateMozCrashReason("MOZ_ASSERT" "(" "v0->type() == MIRType::Simd128 && v1->type() == MIRType::Simd128 && v2->type() == MIRType::Simd128" ")"); do { *((volatile int*)__null) = 1230; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1230 | v2->type() == MIRType::Simd128)do { static_assert( mozilla::detail::AssertionConditionType< decltype(v0->type() == MIRType::Simd128 && v1-> type() == MIRType::Simd128 && v2->type() == MIRType ::Simd128)>::isValid, "invalid assertion condition"); if ( (__builtin_expect(!!(!(!!(v0->type() == MIRType::Simd128 && v1->type() == MIRType::Simd128 && v2->type() == MIRType::Simd128))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("v0->type() == MIRType::Simd128 && v1->type() == MIRType::Simd128 && v2->type() == MIRType::Simd128" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1230); AnnotateMozCrashReason("MOZ_ASSERT" "(" "v0->type() == MIRType::Simd128 && v1->type() == MIRType::Simd128 && v2->type() == MIRType::Simd128" ")"); do { *((volatile int*)__null) = 1230; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1231 | |
| 1232 | auto* ins = MWasmTernarySimd128::New(alloc(), v0, v1, v2, op); |
| 1233 | curBlock_->add(ins); |
| 1234 | return ins; |
| 1235 | } |
| 1236 | |
| 1237 | // (v128, v128, imm_v128) -> v128 effect-free operations |
| 1238 | MDefinition* shuffleSimd128(MDefinition* v1, MDefinition* v2, V128 control) { |
| 1239 | if (inDeadCode()) { |
| 1240 | return nullptr; |
| 1241 | } |
| 1242 | |
| 1243 | MOZ_ASSERT(v1->type() == MIRType::Simd128)do { static_assert( mozilla::detail::AssertionConditionType< decltype(v1->type() == MIRType::Simd128)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(v1->type() == MIRType::Simd128 ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "v1->type() == MIRType::Simd128", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1243); AnnotateMozCrashReason("MOZ_ASSERT" "(" "v1->type() == MIRType::Simd128" ")"); do { *((volatile int*)__null) = 1243; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1244 | MOZ_ASSERT(v2->type() == MIRType::Simd128)do { static_assert( mozilla::detail::AssertionConditionType< decltype(v2->type() == MIRType::Simd128)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(v2->type() == MIRType::Simd128 ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "v2->type() == MIRType::Simd128", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1244); AnnotateMozCrashReason("MOZ_ASSERT" "(" "v2->type() == MIRType::Simd128" ")"); do { *((volatile int*)__null) = 1244; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1245 | auto* ins = BuildWasmShuffleSimd128( |
| 1246 | alloc(), reinterpret_cast<int8_t*>(control.bytes), v1, v2); |
| 1247 | curBlock_->add(ins); |
| 1248 | return ins; |
| 1249 | } |
| 1250 | |
| 1251 | // Also see below for SIMD memory references |
| 1252 | |
| 1253 | #endif // ENABLE_WASM_SIMD |
| 1254 | |
| 1255 | /************************************************ Linear memory accesses */ |
| 1256 | |
| 1257 | // For detailed information about memory accesses, see "Linear memory |
| 1258 | // addresses and bounds checking" in WasmMemory.cpp. |
| 1259 | |
| 1260 | private: |
| 1261 | // If the platform does not have a HeapReg, load the memory base from |
| 1262 | // instance. |
| 1263 | MDefinition* maybeLoadMemoryBase(uint32_t memoryIndex) { |
| 1264 | #ifdef WASM_HAS_HEAPREG1 |
| 1265 | if (memoryIndex == 0) { |
| 1266 | return nullptr; |
| 1267 | } |
| 1268 | #endif |
| 1269 | return memoryBase(memoryIndex); |
| 1270 | } |
| 1271 | |
| 1272 | public: |
| 1273 | // A value holding the memory base, whether that's HeapReg or some other |
| 1274 | // register. |
| 1275 | MDefinition* memoryBase(uint32_t memoryIndex) { |
| 1276 | AliasSet aliases = !codeMeta_.memories[memoryIndex].canMovingGrow() |
| 1277 | ? AliasSet::None() |
| 1278 | : AliasSet::Load(AliasSet::WasmHeapMeta); |
| 1279 | #ifdef WASM_HAS_HEAPREG1 |
| 1280 | if (memoryIndex == 0) { |
| 1281 | MWasmHeapReg* base = MWasmHeapReg::New(alloc(), aliases); |
| 1282 | curBlock_->add(base); |
| 1283 | return base; |
| 1284 | } |
| 1285 | #endif |
| 1286 | uint32_t offset = |
| 1287 | memoryIndex == 0 |
| 1288 | ? Instance::offsetOfMemory0Base() |
| 1289 | : (Instance::offsetInData( |
| 1290 | codeMeta_.offsetOfMemoryInstanceData(memoryIndex) + |
| 1291 | offsetof(MemoryInstanceData, base)__builtin_offsetof(MemoryInstanceData, base))); |
| 1292 | MWasmLoadInstance* base = MWasmLoadInstance::New( |
| 1293 | alloc(), instancePointer_, offset, MIRType::Pointer, aliases); |
| 1294 | curBlock_->add(base); |
| 1295 | return base; |
| 1296 | } |
| 1297 | |
| 1298 | private: |
| 1299 | // If the bounds checking strategy requires it, load the bounds check limit |
| 1300 | // from the instance. |
| 1301 | MWasmLoadInstance* maybeLoadBoundsCheckLimit(uint32_t memoryIndex, |
| 1302 | MIRType type) { |
| 1303 | MOZ_ASSERT(type == MIRType::Int32 || type == MIRType::Int64)do { static_assert( mozilla::detail::AssertionConditionType< decltype(type == MIRType::Int32 || type == MIRType::Int64)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(type == MIRType::Int32 || type == MIRType::Int64))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("type == MIRType::Int32 || type == MIRType::Int64" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1303); AnnotateMozCrashReason("MOZ_ASSERT" "(" "type == MIRType::Int32 || type == MIRType::Int64" ")"); do { *((volatile int*)__null) = 1303; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1304 | if (codeMeta_.hugeMemoryEnabled(memoryIndex)) { |
| 1305 | return nullptr; |
| 1306 | } |
| 1307 | uint32_t offset = |
| 1308 | memoryIndex == 0 |
| 1309 | ? Instance::offsetOfMemory0BoundsCheckLimit() |
| 1310 | : (Instance::offsetInData( |
| 1311 | codeMeta_.offsetOfMemoryInstanceData(memoryIndex) + |
| 1312 | offsetof(MemoryInstanceData, boundsCheckLimit)__builtin_offsetof(MemoryInstanceData, boundsCheckLimit))); |
| 1313 | AliasSet aliases = !codeMeta_.memories[memoryIndex].canMovingGrow() |
| 1314 | ? AliasSet::None() |
| 1315 | : AliasSet::Load(AliasSet::WasmHeapMeta); |
| 1316 | auto* load = MWasmLoadInstance::New(alloc(), instancePointer_, offset, type, |
| 1317 | aliases); |
| 1318 | curBlock_->add(load); |
| 1319 | return load; |
| 1320 | } |
| 1321 | |
| 1322 | // Return true if the access requires an alignment check. If so, sets |
| 1323 | // *mustAdd to true if the offset must be added to the pointer before |
| 1324 | // checking. |
| 1325 | bool needAlignmentCheck(MemoryAccessDesc* access, MDefinition* base, |
| 1326 | bool* mustAdd) { |
| 1327 | MOZ_ASSERT(!*mustAdd)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!*mustAdd)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!*mustAdd))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!*mustAdd", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1327); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!*mustAdd" ")" ); do { *((volatile int*)__null) = 1327; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1328 | |
| 1329 | // asm.js accesses are always aligned and need no checks. |
| 1330 | if (codeMeta_.isAsmJS() || !access->isAtomic()) { |
| 1331 | return false; |
| 1332 | } |
| 1333 | |
| 1334 | // If the EA is known and aligned it will need no checks. |
| 1335 | if (base->isConstant()) { |
| 1336 | // We only care about the low bits, so overflow is OK, as is chopping off |
| 1337 | // the high bits of an i64 pointer. |
| 1338 | uint32_t ptr = 0; |
| 1339 | if (isMem64(access->memoryIndex())) { |
| 1340 | ptr = uint32_t(base->toConstant()->toInt64()); |
| 1341 | } else { |
| 1342 | ptr = base->toConstant()->toInt32(); |
| 1343 | } |
| 1344 | if (((ptr + access->offset64()) & (access->byteSize() - 1)) == 0) { |
| 1345 | return false; |
| 1346 | } |
| 1347 | } |
| 1348 | |
| 1349 | // If the offset is aligned then the EA is just the pointer, for |
| 1350 | // the purposes of this check. |
| 1351 | *mustAdd = (access->offset64() & (access->byteSize() - 1)) != 0; |
| 1352 | return true; |
| 1353 | } |
| 1354 | |
| 1355 | // Fold a constant base into the offset and make the base 0, provided the |
| 1356 | // offset stays below the guard limit. The reason for folding the base into |
| 1357 | // the offset rather than vice versa is that a small offset can be ignored |
| 1358 | // by both explicit bounds checking and bounds check elimination. |
| 1359 | void foldConstantPointer(MemoryAccessDesc* access, MDefinition** base) { |
| 1360 | uint32_t offsetGuardLimit = GetMaxOffsetGuardLimit( |
| 1361 | codeMeta_.hugeMemoryEnabled(access->memoryIndex())); |
| 1362 | |
| 1363 | if ((*base)->isConstant()) { |
| 1364 | uint64_t basePtr = 0; |
| 1365 | if (isMem64(access->memoryIndex())) { |
| 1366 | basePtr = uint64_t((*base)->toConstant()->toInt64()); |
| 1367 | } else { |
| 1368 | basePtr = uint64_t(int64_t((*base)->toConstant()->toInt32())); |
| 1369 | } |
| 1370 | |
| 1371 | uint64_t offset = access->offset64(); |
| 1372 | |
| 1373 | if (offset < offsetGuardLimit && basePtr < offsetGuardLimit - offset) { |
| 1374 | offset += uint32_t(basePtr); |
| 1375 | access->setOffset32(uint32_t(offset)); |
| 1376 | *base = isMem64(access->memoryIndex()) ? constantI64(int64_t(0)) |
| 1377 | : constantI32(0); |
| 1378 | } |
| 1379 | } |
| 1380 | } |
| 1381 | |
| 1382 | // If the offset must be added because it is large or because the true EA must |
| 1383 | // be checked, compute the effective address, trapping on overflow. |
| 1384 | void maybeComputeEffectiveAddress(MemoryAccessDesc* access, |
| 1385 | MDefinition** base, bool mustAddOffset) { |
| 1386 | uint32_t offsetGuardLimit = GetMaxOffsetGuardLimit( |
| 1387 | codeMeta_.hugeMemoryEnabled(access->memoryIndex())); |
| 1388 | |
| 1389 | if (access->offset64() >= offsetGuardLimit || |
| 1390 | access->offset64() > UINT32_MAX(4294967295U) || mustAddOffset || |
| 1391 | !JitOptions.wasmFoldOffsets) { |
| 1392 | *base = computeEffectiveAddress(*base, access); |
| 1393 | } |
| 1394 | } |
| 1395 | |
| 1396 | MWasmLoadInstance* needBoundsCheck(uint32_t memoryIndex) { |
| 1397 | #ifdef JS_64BIT1 |
| 1398 | // For 32-bit base pointers: |
| 1399 | // |
| 1400 | // If the bounds check uses the full 64 bits of the bounds check limit, then |
| 1401 | // the base pointer must be zero-extended to 64 bits before checking and |
| 1402 | // wrapped back to 32-bits after Spectre masking. (And it's important that |
| 1403 | // the value we end up with has flowed through the Spectre mask.) |
| 1404 | // |
| 1405 | // If the memory's max size is known to be smaller than 64K pages exactly, |
| 1406 | // we can use a 32-bit check and avoid extension and wrapping. |
| 1407 | static_assert(0x100000000 % PageSize == 0); |
| 1408 | bool mem32LimitIs64Bits = |
| 1409 | isMem32(memoryIndex) && |
| 1410 | !codeMeta_.memories[memoryIndex].boundsCheckLimitIs32Bits() && |
| 1411 | MaxMemoryPages(codeMeta_.memories[memoryIndex].indexType()) >= |
| 1412 | Pages(0x100000000 / PageSize); |
| 1413 | #else |
| 1414 | // On 32-bit platforms we have no more than 2GB memory and the limit for a |
| 1415 | // 32-bit base pointer is never a 64-bit value. |
| 1416 | bool mem32LimitIs64Bits = false; |
| 1417 | #endif |
| 1418 | return maybeLoadBoundsCheckLimit(memoryIndex, |
| 1419 | mem32LimitIs64Bits || isMem64(memoryIndex) |
| 1420 | ? MIRType::Int64 |
| 1421 | : MIRType::Int32); |
| 1422 | } |
| 1423 | |
| 1424 | void performBoundsCheck(uint32_t memoryIndex, MDefinition** base, |
| 1425 | MWasmLoadInstance* boundsCheckLimit) { |
| 1426 | // At the outset, actualBase could be the result of pretty much any integer |
| 1427 | // operation, or it could be the load of an integer constant. If its type |
| 1428 | // is i32, we may assume the value has a canonical representation for the |
| 1429 | // platform, see doc block in MacroAssembler.h. |
| 1430 | MDefinition* actualBase = *base; |
| 1431 | |
| 1432 | // Extend an i32 index value to perform a 64-bit bounds check if the memory |
| 1433 | // can be 4GB or larger. |
| 1434 | bool extendAndWrapIndex = |
| 1435 | isMem32(memoryIndex) && boundsCheckLimit->type() == MIRType::Int64; |
| 1436 | if (extendAndWrapIndex) { |
| 1437 | auto* extended = MWasmExtendU32Index::New(alloc(), actualBase); |
| 1438 | curBlock_->add(extended); |
| 1439 | actualBase = extended; |
| 1440 | } |
| 1441 | |
| 1442 | auto target = memoryIndex == 0 ? MWasmBoundsCheck::Memory0 |
| 1443 | : MWasmBoundsCheck::Unknown; |
| 1444 | auto* ins = MWasmBoundsCheck::New(alloc(), actualBase, boundsCheckLimit, |
| 1445 | bytecodeOffset(), target); |
| 1446 | curBlock_->add(ins); |
| 1447 | actualBase = ins; |
| 1448 | |
| 1449 | // If we're masking, then we update *base to create a dependency chain |
| 1450 | // through the masked index. But we will first need to wrap the index |
| 1451 | // value if it was extended above. |
| 1452 | if (JitOptions.spectreIndexMasking) { |
| 1453 | if (extendAndWrapIndex) { |
| 1454 | auto* wrapped = MWasmWrapU32Index::New(alloc(), actualBase); |
| 1455 | curBlock_->add(wrapped); |
| 1456 | actualBase = wrapped; |
| 1457 | } |
| 1458 | *base = actualBase; |
| 1459 | } |
| 1460 | } |
| 1461 | |
| 1462 | // Perform all necessary checking before a wasm heap access, based on the |
| 1463 | // attributes of the access and base pointer. |
| 1464 | // |
| 1465 | // For 64-bit indices on platforms that are limited to indices that fit into |
| 1466 | // 32 bits (all 32-bit platforms and mips64), this returns a bounds-checked |
| 1467 | // `base` that has type Int32. Lowering code depends on this and will assert |
| 1468 | // that the base has this type. See the end of this function. |
| 1469 | |
| 1470 | void checkOffsetAndAlignmentAndBounds(MemoryAccessDesc* access, |
| 1471 | MDefinition** base) { |
| 1472 | MOZ_ASSERT(!inDeadCode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!inDeadCode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!inDeadCode()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!inDeadCode()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1472); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!inDeadCode()" ")"); do { *((volatile int*)__null) = 1472; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1473 | MOZ_ASSERT(!codeMeta_.isAsmJS())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!codeMeta_.isAsmJS())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!codeMeta_.isAsmJS()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("!codeMeta_.isAsmJS()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1473); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!codeMeta_.isAsmJS()" ")"); do { *((volatile int*)__null) = 1473; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1474 | |
| 1475 | // Attempt to fold an offset into a constant base pointer so as to simplify |
| 1476 | // the addressing expression. This may update *base. |
| 1477 | foldConstantPointer(access, base); |
| 1478 | |
| 1479 | // Determine whether an alignment check is needed and whether the offset |
| 1480 | // must be checked too. |
| 1481 | bool mustAddOffsetForAlignmentCheck = false; |
| 1482 | bool alignmentCheck = |
| 1483 | needAlignmentCheck(access, *base, &mustAddOffsetForAlignmentCheck); |
| 1484 | |
| 1485 | // If bounds checking or alignment checking requires it, compute the |
| 1486 | // effective address: add the offset into the pointer and trap on overflow. |
| 1487 | // This may update *base. |
| 1488 | maybeComputeEffectiveAddress(access, base, mustAddOffsetForAlignmentCheck); |
| 1489 | |
| 1490 | // Emit the alignment check if necessary; it traps if it fails. |
| 1491 | if (alignmentCheck) { |
| 1492 | curBlock_->add(MWasmAlignmentCheck::New( |
| 1493 | alloc(), *base, access->byteSize(), bytecodeOffset())); |
| 1494 | } |
| 1495 | |
| 1496 | // Emit the bounds check if necessary; it traps if it fails. This may |
| 1497 | // update *base. |
| 1498 | MWasmLoadInstance* boundsCheckLimit = |
| 1499 | needBoundsCheck(access->memoryIndex()); |
| 1500 | if (boundsCheckLimit) { |
| 1501 | performBoundsCheck(access->memoryIndex(), base, boundsCheckLimit); |
| 1502 | } |
| 1503 | |
| 1504 | #ifndef JS_64BIT1 |
| 1505 | if (isMem64(access->memoryIndex())) { |
| 1506 | // We must have had an explicit bounds check (or one was elided if it was |
| 1507 | // proved redundant), and on 32-bit systems the index will for sure fit in |
| 1508 | // 32 bits: the max memory is 2GB. So chop the index down to 32-bit to |
| 1509 | // simplify the back-end. |
| 1510 | MOZ_ASSERT((*base)->type() == MIRType::Int64)do { static_assert( mozilla::detail::AssertionConditionType< decltype((*base)->type() == MIRType::Int64)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!((*base)->type() == MIRType ::Int64))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("(*base)->type() == MIRType::Int64", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1510); AnnotateMozCrashReason("MOZ_ASSERT" "(" "(*base)->type() == MIRType::Int64" ")"); do { *((volatile int*)__null) = 1510; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1511 | MOZ_ASSERT(!codeMeta_.hugeMemoryEnabled(access->memoryIndex()))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!codeMeta_.hugeMemoryEnabled(access->memoryIndex( )))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!codeMeta_.hugeMemoryEnabled(access->memoryIndex( ))))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!codeMeta_.hugeMemoryEnabled(access->memoryIndex())", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1511); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!codeMeta_.hugeMemoryEnabled(access->memoryIndex())" ")"); do { *((volatile int*)__null) = 1511; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1512 | auto* chopped = MWasmWrapU32Index::New(alloc(), *base); |
| 1513 | MOZ_ASSERT(chopped->type() == MIRType::Int32)do { static_assert( mozilla::detail::AssertionConditionType< decltype(chopped->type() == MIRType::Int32)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(chopped->type() == MIRType ::Int32))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("chopped->type() == MIRType::Int32", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1513); AnnotateMozCrashReason("MOZ_ASSERT" "(" "chopped->type() == MIRType::Int32" ")"); do { *((volatile int*)__null) = 1513; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1514 | curBlock_->add(chopped); |
| 1515 | *base = chopped; |
| 1516 | } |
| 1517 | #endif |
| 1518 | } |
| 1519 | |
| 1520 | bool isSmallerAccessForI64(ValType result, const MemoryAccessDesc* access) { |
| 1521 | if (result == ValType::I64 && access->byteSize() <= 4) { |
| 1522 | // These smaller accesses should all be zero-extending. |
| 1523 | MOZ_ASSERT(!isSignedIntType(access->type()))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!isSignedIntType(access->type()))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!isSignedIntType(access-> type())))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!isSignedIntType(access->type())", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1523); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!isSignedIntType(access->type())" ")"); do { *((volatile int*)__null) = 1523; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1524 | return true; |
| 1525 | } |
| 1526 | return false; |
| 1527 | } |
| 1528 | |
| 1529 | public: |
| 1530 | bool isMem32(uint32_t memoryIndex) { |
| 1531 | return codeMeta_.memories[memoryIndex].indexType() == IndexType::I32; |
| 1532 | } |
| 1533 | bool isMem64(uint32_t memoryIndex) { |
| 1534 | return codeMeta_.memories[memoryIndex].indexType() == IndexType::I64; |
| 1535 | } |
| 1536 | bool hugeMemoryEnabled(uint32_t memoryIndex) { |
| 1537 | return codeMeta_.hugeMemoryEnabled(memoryIndex); |
| 1538 | } |
| 1539 | |
| 1540 | // Add the offset into the pointer to yield the EA; trap on overflow. |
| 1541 | MDefinition* computeEffectiveAddress(MDefinition* base, |
| 1542 | MemoryAccessDesc* access) { |
| 1543 | if (inDeadCode()) { |
| 1544 | return nullptr; |
| 1545 | } |
| 1546 | uint64_t offset = access->offset64(); |
| 1547 | if (offset == 0) { |
| 1548 | return base; |
| 1549 | } |
| 1550 | auto* ins = MWasmAddOffset::New(alloc(), base, offset, bytecodeOffset()); |
| 1551 | curBlock_->add(ins); |
| 1552 | access->clearOffset(); |
| 1553 | return ins; |
| 1554 | } |
| 1555 | |
| 1556 | MDefinition* load(MDefinition* base, MemoryAccessDesc* access, |
| 1557 | ValType result) { |
| 1558 | if (inDeadCode()) { |
| 1559 | return nullptr; |
| 1560 | } |
| 1561 | |
| 1562 | MDefinition* memoryBase = maybeLoadMemoryBase(access->memoryIndex()); |
| 1563 | MInstruction* load = nullptr; |
| 1564 | if (codeMeta_.isAsmJS()) { |
| 1565 | MOZ_ASSERT(access->offset64() == 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(access->offset64() == 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(access->offset64() == 0)) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("access->offset64() == 0" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1565); AnnotateMozCrashReason("MOZ_ASSERT" "(" "access->offset64() == 0" ")"); do { *((volatile int*)__null) = 1565; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1566 | MWasmLoadInstance* boundsCheckLimit = |
| 1567 | maybeLoadBoundsCheckLimit(access->memoryIndex(), MIRType::Int32); |
| 1568 | load = MAsmJSLoadHeap::New(alloc(), memoryBase, base, boundsCheckLimit, |
| 1569 | access->type()); |
| 1570 | } else { |
| 1571 | checkOffsetAndAlignmentAndBounds(access, &base); |
| 1572 | #ifndef JS_64BIT1 |
| 1573 | MOZ_ASSERT(base->type() == MIRType::Int32)do { static_assert( mozilla::detail::AssertionConditionType< decltype(base->type() == MIRType::Int32)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(base->type() == MIRType:: Int32))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("base->type() == MIRType::Int32", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1573); AnnotateMozCrashReason("MOZ_ASSERT" "(" "base->type() == MIRType::Int32" ")"); do { *((volatile int*)__null) = 1573; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1574 | #endif |
| 1575 | load = MWasmLoad::New(alloc(), memoryBase, base, *access, |
| 1576 | result.toMIRType()); |
| 1577 | } |
| 1578 | if (!load) { |
| 1579 | return nullptr; |
| 1580 | } |
| 1581 | curBlock_->add(load); |
| 1582 | return load; |
| 1583 | } |
| 1584 | |
| 1585 | void store(MDefinition* base, MemoryAccessDesc* access, MDefinition* v) { |
| 1586 | if (inDeadCode()) { |
| 1587 | return; |
| 1588 | } |
| 1589 | |
| 1590 | MDefinition* memoryBase = maybeLoadMemoryBase(access->memoryIndex()); |
| 1591 | MInstruction* store = nullptr; |
| 1592 | if (codeMeta_.isAsmJS()) { |
| 1593 | MOZ_ASSERT(access->offset64() == 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(access->offset64() == 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(access->offset64() == 0)) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("access->offset64() == 0" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1593); AnnotateMozCrashReason("MOZ_ASSERT" "(" "access->offset64() == 0" ")"); do { *((volatile int*)__null) = 1593; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1594 | MWasmLoadInstance* boundsCheckLimit = |
| 1595 | maybeLoadBoundsCheckLimit(access->memoryIndex(), MIRType::Int32); |
| 1596 | store = MAsmJSStoreHeap::New(alloc(), memoryBase, base, boundsCheckLimit, |
| 1597 | access->type(), v); |
| 1598 | } else { |
| 1599 | checkOffsetAndAlignmentAndBounds(access, &base); |
| 1600 | #ifndef JS_64BIT1 |
| 1601 | MOZ_ASSERT(base->type() == MIRType::Int32)do { static_assert( mozilla::detail::AssertionConditionType< decltype(base->type() == MIRType::Int32)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(base->type() == MIRType:: Int32))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("base->type() == MIRType::Int32", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1601); AnnotateMozCrashReason("MOZ_ASSERT" "(" "base->type() == MIRType::Int32" ")"); do { *((volatile int*)__null) = 1601; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1602 | #endif |
| 1603 | store = MWasmStore::New(alloc(), memoryBase, base, *access, v); |
| 1604 | } |
| 1605 | if (!store) { |
| 1606 | return; |
| 1607 | } |
| 1608 | curBlock_->add(store); |
| 1609 | } |
| 1610 | |
| 1611 | MDefinition* atomicCompareExchangeHeap(MDefinition* base, |
| 1612 | MemoryAccessDesc* access, |
| 1613 | ValType result, MDefinition* oldv, |
| 1614 | MDefinition* newv) { |
| 1615 | if (inDeadCode()) { |
| 1616 | return nullptr; |
| 1617 | } |
| 1618 | |
| 1619 | checkOffsetAndAlignmentAndBounds(access, &base); |
| 1620 | #ifndef JS_64BIT1 |
| 1621 | MOZ_ASSERT(base->type() == MIRType::Int32)do { static_assert( mozilla::detail::AssertionConditionType< decltype(base->type() == MIRType::Int32)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(base->type() == MIRType:: Int32))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("base->type() == MIRType::Int32", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1621); AnnotateMozCrashReason("MOZ_ASSERT" "(" "base->type() == MIRType::Int32" ")"); do { *((volatile int*)__null) = 1621; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1622 | #endif |
| 1623 | |
| 1624 | if (isSmallerAccessForI64(result, access)) { |
| 1625 | auto* cvtOldv = |
| 1626 | MWrapInt64ToInt32::New(alloc(), oldv, /*bottomHalf=*/true); |
| 1627 | curBlock_->add(cvtOldv); |
| 1628 | oldv = cvtOldv; |
| 1629 | |
| 1630 | auto* cvtNewv = |
| 1631 | MWrapInt64ToInt32::New(alloc(), newv, /*bottomHalf=*/true); |
| 1632 | curBlock_->add(cvtNewv); |
| 1633 | newv = cvtNewv; |
| 1634 | } |
| 1635 | |
| 1636 | MDefinition* memoryBase = maybeLoadMemoryBase(access->memoryIndex()); |
| 1637 | MInstruction* cas = MWasmCompareExchangeHeap::New( |
| 1638 | alloc(), bytecodeOffset(), memoryBase, base, *access, oldv, newv, |
| 1639 | instancePointer_); |
| 1640 | if (!cas) { |
| 1641 | return nullptr; |
| 1642 | } |
| 1643 | curBlock_->add(cas); |
| 1644 | |
| 1645 | if (isSmallerAccessForI64(result, access)) { |
| 1646 | cas = MExtendInt32ToInt64::New(alloc(), cas, true); |
| 1647 | curBlock_->add(cas); |
| 1648 | } |
| 1649 | |
| 1650 | return cas; |
| 1651 | } |
| 1652 | |
| 1653 | MDefinition* atomicExchangeHeap(MDefinition* base, MemoryAccessDesc* access, |
| 1654 | ValType result, MDefinition* value) { |
| 1655 | if (inDeadCode()) { |
| 1656 | return nullptr; |
| 1657 | } |
| 1658 | |
| 1659 | checkOffsetAndAlignmentAndBounds(access, &base); |
| 1660 | #ifndef JS_64BIT1 |
| 1661 | MOZ_ASSERT(base->type() == MIRType::Int32)do { static_assert( mozilla::detail::AssertionConditionType< decltype(base->type() == MIRType::Int32)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(base->type() == MIRType:: Int32))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("base->type() == MIRType::Int32", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1661); AnnotateMozCrashReason("MOZ_ASSERT" "(" "base->type() == MIRType::Int32" ")"); do { *((volatile int*)__null) = 1661; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1662 | #endif |
| 1663 | |
| 1664 | if (isSmallerAccessForI64(result, access)) { |
| 1665 | auto* cvtValue = |
| 1666 | MWrapInt64ToInt32::New(alloc(), value, /*bottomHalf=*/true); |
| 1667 | curBlock_->add(cvtValue); |
| 1668 | value = cvtValue; |
| 1669 | } |
| 1670 | |
| 1671 | MDefinition* memoryBase = maybeLoadMemoryBase(access->memoryIndex()); |
| 1672 | MInstruction* xchg = |
| 1673 | MWasmAtomicExchangeHeap::New(alloc(), bytecodeOffset(), memoryBase, |
| 1674 | base, *access, value, instancePointer_); |
| 1675 | if (!xchg) { |
| 1676 | return nullptr; |
| 1677 | } |
| 1678 | curBlock_->add(xchg); |
| 1679 | |
| 1680 | if (isSmallerAccessForI64(result, access)) { |
| 1681 | xchg = MExtendInt32ToInt64::New(alloc(), xchg, true); |
| 1682 | curBlock_->add(xchg); |
| 1683 | } |
| 1684 | |
| 1685 | return xchg; |
| 1686 | } |
| 1687 | |
| 1688 | MDefinition* atomicBinopHeap(AtomicOp op, MDefinition* base, |
| 1689 | MemoryAccessDesc* access, ValType result, |
| 1690 | MDefinition* value) { |
| 1691 | if (inDeadCode()) { |
| 1692 | return nullptr; |
| 1693 | } |
| 1694 | |
| 1695 | checkOffsetAndAlignmentAndBounds(access, &base); |
| 1696 | #ifndef JS_64BIT1 |
| 1697 | MOZ_ASSERT(base->type() == MIRType::Int32)do { static_assert( mozilla::detail::AssertionConditionType< decltype(base->type() == MIRType::Int32)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(base->type() == MIRType:: Int32))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("base->type() == MIRType::Int32", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1697); AnnotateMozCrashReason("MOZ_ASSERT" "(" "base->type() == MIRType::Int32" ")"); do { *((volatile int*)__null) = 1697; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1698 | #endif |
| 1699 | |
| 1700 | if (isSmallerAccessForI64(result, access)) { |
| 1701 | auto* cvtValue = |
| 1702 | MWrapInt64ToInt32::New(alloc(), value, /*bottomHalf=*/true); |
| 1703 | curBlock_->add(cvtValue); |
| 1704 | value = cvtValue; |
| 1705 | } |
| 1706 | |
| 1707 | MDefinition* memoryBase = maybeLoadMemoryBase(access->memoryIndex()); |
| 1708 | MInstruction* binop = |
| 1709 | MWasmAtomicBinopHeap::New(alloc(), bytecodeOffset(), op, memoryBase, |
| 1710 | base, *access, value, instancePointer_); |
| 1711 | if (!binop) { |
| 1712 | return nullptr; |
| 1713 | } |
| 1714 | curBlock_->add(binop); |
| 1715 | |
| 1716 | if (isSmallerAccessForI64(result, access)) { |
| 1717 | binop = MExtendInt32ToInt64::New(alloc(), binop, true); |
| 1718 | curBlock_->add(binop); |
| 1719 | } |
| 1720 | |
| 1721 | return binop; |
| 1722 | } |
| 1723 | |
| 1724 | #ifdef ENABLE_WASM_SIMD1 |
| 1725 | MDefinition* loadSplatSimd128(Scalar::Type viewType, |
| 1726 | const LinearMemoryAddress<MDefinition*>& addr, |
| 1727 | wasm::SimdOp splatOp) { |
| 1728 | if (inDeadCode()) { |
| 1729 | return nullptr; |
| 1730 | } |
| 1731 | |
| 1732 | MemoryAccessDesc access(addr.memoryIndex, viewType, addr.align, addr.offset, |
| 1733 | bytecodeIfNotAsmJS(), |
| 1734 | hugeMemoryEnabled(addr.memoryIndex)); |
| 1735 | |
| 1736 | // Generate better code (on x86) |
| 1737 | // If AVX2 is enabled, more broadcast operators are available. |
| 1738 | if (viewType == Scalar::Float64 |
| 1739 | # if defined(JS_CODEGEN_X641) || defined(JS_CODEGEN_X86) |
| 1740 | || (js::jit::CPUInfo::IsAVX2Present() && |
| 1741 | (viewType == Scalar::Uint8 || viewType == Scalar::Uint16 || |
| 1742 | viewType == Scalar::Float32)) |
| 1743 | # endif |
| 1744 | ) { |
| 1745 | access.setSplatSimd128Load(); |
| 1746 | return load(addr.base, &access, ValType::V128); |
| 1747 | } |
| 1748 | |
| 1749 | ValType resultType = ValType::I32; |
| 1750 | if (viewType == Scalar::Float32) { |
| 1751 | resultType = ValType::F32; |
| 1752 | splatOp = wasm::SimdOp::F32x4Splat; |
| 1753 | } |
| 1754 | auto* scalar = load(addr.base, &access, resultType); |
| 1755 | if (!inDeadCode() && !scalar) { |
| 1756 | return nullptr; |
| 1757 | } |
| 1758 | return scalarToSimd128(scalar, splatOp); |
| 1759 | } |
| 1760 | |
| 1761 | MDefinition* loadExtendSimd128(const LinearMemoryAddress<MDefinition*>& addr, |
| 1762 | wasm::SimdOp op) { |
| 1763 | if (inDeadCode()) { |
| 1764 | return nullptr; |
| 1765 | } |
| 1766 | |
| 1767 | // Generate better code (on x86) by loading as a double with an |
| 1768 | // operation that sign extends directly. |
| 1769 | MemoryAccessDesc access(addr.memoryIndex, Scalar::Float64, addr.align, |
| 1770 | addr.offset, bytecodeIfNotAsmJS(), |
| 1771 | hugeMemoryEnabled(addr.memoryIndex)); |
| 1772 | access.setWidenSimd128Load(op); |
| 1773 | return load(addr.base, &access, ValType::V128); |
| 1774 | } |
| 1775 | |
| 1776 | MDefinition* loadZeroSimd128(Scalar::Type viewType, size_t numBytes, |
| 1777 | const LinearMemoryAddress<MDefinition*>& addr) { |
| 1778 | if (inDeadCode()) { |
| 1779 | return nullptr; |
| 1780 | } |
| 1781 | |
| 1782 | MemoryAccessDesc access(addr.memoryIndex, viewType, addr.align, addr.offset, |
| 1783 | bytecodeIfNotAsmJS(), |
| 1784 | hugeMemoryEnabled(addr.memoryIndex)); |
| 1785 | access.setZeroExtendSimd128Load(); |
| 1786 | return load(addr.base, &access, ValType::V128); |
| 1787 | } |
| 1788 | |
| 1789 | MDefinition* loadLaneSimd128(uint32_t laneSize, |
| 1790 | const LinearMemoryAddress<MDefinition*>& addr, |
| 1791 | uint32_t laneIndex, MDefinition* src) { |
| 1792 | if (inDeadCode()) { |
| 1793 | return nullptr; |
| 1794 | } |
| 1795 | |
| 1796 | MemoryAccessDesc access(addr.memoryIndex, Scalar::Simd128, addr.align, |
| 1797 | addr.offset, bytecodeIfNotAsmJS(), |
| 1798 | hugeMemoryEnabled(addr.memoryIndex)); |
| 1799 | MDefinition* memoryBase = maybeLoadMemoryBase(access.memoryIndex()); |
| 1800 | MDefinition* base = addr.base; |
| 1801 | MOZ_ASSERT(!codeMeta_.isAsmJS())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!codeMeta_.isAsmJS())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!codeMeta_.isAsmJS()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("!codeMeta_.isAsmJS()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1801); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!codeMeta_.isAsmJS()" ")"); do { *((volatile int*)__null) = 1801; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1802 | checkOffsetAndAlignmentAndBounds(&access, &base); |
| 1803 | # ifndef JS_64BIT1 |
| 1804 | MOZ_ASSERT(base->type() == MIRType::Int32)do { static_assert( mozilla::detail::AssertionConditionType< decltype(base->type() == MIRType::Int32)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(base->type() == MIRType:: Int32))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("base->type() == MIRType::Int32", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1804); AnnotateMozCrashReason("MOZ_ASSERT" "(" "base->type() == MIRType::Int32" ")"); do { *((volatile int*)__null) = 1804; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1805 | # endif |
| 1806 | MInstruction* load = MWasmLoadLaneSimd128::New( |
| 1807 | alloc(), memoryBase, base, access, laneSize, laneIndex, src); |
| 1808 | if (!load) { |
| 1809 | return nullptr; |
| 1810 | } |
| 1811 | curBlock_->add(load); |
| 1812 | return load; |
| 1813 | } |
| 1814 | |
| 1815 | void storeLaneSimd128(uint32_t laneSize, |
| 1816 | const LinearMemoryAddress<MDefinition*>& addr, |
| 1817 | uint32_t laneIndex, MDefinition* src) { |
| 1818 | if (inDeadCode()) { |
| 1819 | return; |
| 1820 | } |
| 1821 | MemoryAccessDesc access(addr.memoryIndex, Scalar::Simd128, addr.align, |
| 1822 | addr.offset, bytecodeIfNotAsmJS(), |
| 1823 | hugeMemoryEnabled(addr.memoryIndex)); |
| 1824 | MDefinition* memoryBase = maybeLoadMemoryBase(access.memoryIndex()); |
| 1825 | MDefinition* base = addr.base; |
| 1826 | MOZ_ASSERT(!codeMeta_.isAsmJS())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!codeMeta_.isAsmJS())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!codeMeta_.isAsmJS()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("!codeMeta_.isAsmJS()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1826); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!codeMeta_.isAsmJS()" ")"); do { *((volatile int*)__null) = 1826; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1827 | checkOffsetAndAlignmentAndBounds(&access, &base); |
| 1828 | # ifndef JS_64BIT1 |
| 1829 | MOZ_ASSERT(base->type() == MIRType::Int32)do { static_assert( mozilla::detail::AssertionConditionType< decltype(base->type() == MIRType::Int32)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(base->type() == MIRType:: Int32))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("base->type() == MIRType::Int32", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1829); AnnotateMozCrashReason("MOZ_ASSERT" "(" "base->type() == MIRType::Int32" ")"); do { *((volatile int*)__null) = 1829; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1830 | # endif |
| 1831 | MInstruction* store = MWasmStoreLaneSimd128::New( |
| 1832 | alloc(), memoryBase, base, access, laneSize, laneIndex, src); |
| 1833 | if (!store) { |
| 1834 | return; |
| 1835 | } |
| 1836 | curBlock_->add(store); |
| 1837 | } |
| 1838 | #endif // ENABLE_WASM_SIMD |
| 1839 | |
| 1840 | /************************************************ Global variable accesses */ |
| 1841 | |
| 1842 | MDefinition* loadGlobalVar(unsigned instanceDataOffset, bool isConst, |
| 1843 | bool isIndirect, MIRType type) { |
| 1844 | if (inDeadCode()) { |
| 1845 | return nullptr; |
| 1846 | } |
| 1847 | |
| 1848 | MInstruction* load; |
| 1849 | if (isIndirect) { |
| 1850 | // Pull a pointer to the value out of Instance::globalArea, then |
| 1851 | // load from that pointer. Note that the pointer is immutable |
| 1852 | // even though the value it points at may change, hence the use of |
| 1853 | // |true| for the first node's |isConst| value, irrespective of |
| 1854 | // the |isConst| formal parameter to this method. The latter |
| 1855 | // applies to the denoted value as a whole. |
| 1856 | auto* cellPtr = MWasmLoadInstanceDataField::New( |
| 1857 | alloc(), MIRType::Pointer, instanceDataOffset, |
| 1858 | /*isConst=*/true, instancePointer_); |
| 1859 | curBlock_->add(cellPtr); |
| 1860 | load = MWasmLoadGlobalCell::New(alloc(), type, cellPtr); |
| 1861 | } else { |
| 1862 | // Pull the value directly out of Instance::globalArea. |
| 1863 | load = MWasmLoadInstanceDataField::New(alloc(), type, instanceDataOffset, |
| 1864 | isConst, instancePointer_); |
| 1865 | } |
| 1866 | curBlock_->add(load); |
| 1867 | return load; |
| 1868 | } |
| 1869 | |
| 1870 | [[nodiscard]] bool storeGlobalVar(uint32_t lineOrBytecode, |
| 1871 | uint32_t instanceDataOffset, |
| 1872 | bool isIndirect, MDefinition* v) { |
| 1873 | if (inDeadCode()) { |
| 1874 | return true; |
| 1875 | } |
| 1876 | |
| 1877 | if (isIndirect) { |
| 1878 | // Pull a pointer to the value out of Instance::globalArea, then |
| 1879 | // store through that pointer. |
| 1880 | auto* valueAddr = MWasmLoadInstanceDataField::New( |
| 1881 | alloc(), MIRType::Pointer, instanceDataOffset, |
| 1882 | /*isConst=*/true, instancePointer_); |
| 1883 | curBlock_->add(valueAddr); |
| 1884 | |
| 1885 | // Handle a store to a ref-typed field specially |
| 1886 | if (v->type() == MIRType::WasmAnyRef) { |
| 1887 | // Load the previous value for the post-write barrier |
| 1888 | auto* prevValue = |
| 1889 | MWasmLoadGlobalCell::New(alloc(), MIRType::WasmAnyRef, valueAddr); |
| 1890 | curBlock_->add(prevValue); |
| 1891 | |
| 1892 | // Store the new value |
| 1893 | auto* store = |
| 1894 | MWasmStoreRef::New(alloc(), instancePointer_, valueAddr, |
| 1895 | /*valueOffset=*/0, v, AliasSet::WasmGlobalCell, |
| 1896 | WasmPreBarrierKind::Normal); |
| 1897 | curBlock_->add(store); |
| 1898 | |
| 1899 | // Call the post-write barrier |
| 1900 | return postBarrierPrecise(lineOrBytecode, valueAddr, prevValue); |
| 1901 | } |
| 1902 | |
| 1903 | auto* store = MWasmStoreGlobalCell::New(alloc(), v, valueAddr); |
| 1904 | curBlock_->add(store); |
| 1905 | return true; |
| 1906 | } |
| 1907 | // Or else store the value directly in Instance::globalArea. |
| 1908 | |
| 1909 | // Handle a store to a ref-typed field specially |
| 1910 | if (v->type() == MIRType::WasmAnyRef) { |
| 1911 | // Compute the address of the ref-typed global |
| 1912 | auto* valueAddr = MWasmDerivedPointer::New( |
| 1913 | alloc(), instancePointer_, |
| 1914 | wasm::Instance::offsetInData(instanceDataOffset)); |
| 1915 | curBlock_->add(valueAddr); |
| 1916 | |
| 1917 | // Load the previous value for the post-write barrier |
| 1918 | auto* prevValue = |
| 1919 | MWasmLoadGlobalCell::New(alloc(), MIRType::WasmAnyRef, valueAddr); |
| 1920 | curBlock_->add(prevValue); |
| 1921 | |
| 1922 | // Store the new value |
| 1923 | auto* store = |
| 1924 | MWasmStoreRef::New(alloc(), instancePointer_, valueAddr, |
| 1925 | /*valueOffset=*/0, v, AliasSet::WasmInstanceData, |
| 1926 | WasmPreBarrierKind::Normal); |
| 1927 | curBlock_->add(store); |
| 1928 | |
| 1929 | // Call the post-write barrier |
| 1930 | return postBarrierPrecise(lineOrBytecode, valueAddr, prevValue); |
| 1931 | } |
| 1932 | |
| 1933 | auto* store = MWasmStoreInstanceDataField::New(alloc(), instanceDataOffset, |
| 1934 | v, instancePointer_); |
| 1935 | curBlock_->add(store); |
| 1936 | return true; |
| 1937 | } |
| 1938 | |
| 1939 | MDefinition* loadTableField(uint32_t tableIndex, unsigned fieldOffset, |
| 1940 | MIRType type) { |
| 1941 | uint32_t instanceDataOffset = wasm::Instance::offsetInData( |
| 1942 | codeMeta_.offsetOfTableInstanceData(tableIndex) + fieldOffset); |
| 1943 | auto* load = |
| 1944 | MWasmLoadInstance::New(alloc(), instancePointer_, instanceDataOffset, |
| 1945 | type, AliasSet::Load(AliasSet::WasmTableMeta)); |
| 1946 | curBlock_->add(load); |
| 1947 | return load; |
| 1948 | } |
| 1949 | |
| 1950 | MDefinition* loadTableLength(uint32_t tableIndex) { |
| 1951 | return loadTableField(tableIndex, offsetof(TableInstanceData, length)__builtin_offsetof(TableInstanceData, length), |
| 1952 | MIRType::Int32); |
| 1953 | } |
| 1954 | |
| 1955 | MDefinition* loadTableElements(uint32_t tableIndex) { |
| 1956 | return loadTableField(tableIndex, offsetof(TableInstanceData, elements)__builtin_offsetof(TableInstanceData, elements), |
| 1957 | MIRType::Pointer); |
| 1958 | } |
| 1959 | |
| 1960 | MDefinition* tableIndexToI32(IndexType indexType, MDefinition* index) { |
| 1961 | switch (indexType) { |
| 1962 | case IndexType::I32: |
| 1963 | return index; |
| 1964 | case IndexType::I64: |
| 1965 | auto* clamp = MWasmClampTable64Index::New(alloc(), index); |
| 1966 | if (!clamp) { |
| 1967 | return nullptr; |
| 1968 | } |
| 1969 | curBlock_->add(clamp); |
| 1970 | return clamp; |
| 1971 | } |
| 1972 | MOZ_CRASH("unknown index type")do { do { } while (false); MOZ_ReportCrash("" "unknown index type" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 1972); AnnotateMozCrashReason("MOZ_CRASH(" "unknown index type" ")"); do { *((volatile int*)__null) = 1972; __attribute__((nomerge )) ::abort(); } while (false); } while (false); |
| 1973 | } |
| 1974 | |
| 1975 | MDefinition* tableGetAnyRef(uint32_t tableIndex, MDefinition* index) { |
| 1976 | // Load the table length and perform a bounds check with spectre index |
| 1977 | // masking |
| 1978 | auto* length = loadTableLength(tableIndex); |
| 1979 | auto* check = MWasmBoundsCheck::New( |
| 1980 | alloc(), index, length, bytecodeOffset(), MWasmBoundsCheck::Unknown); |
| 1981 | curBlock_->add(check); |
| 1982 | if (JitOptions.spectreIndexMasking) { |
| 1983 | index = check; |
| 1984 | } |
| 1985 | |
| 1986 | // Load the table elements and load the element |
| 1987 | auto* elements = loadTableElements(tableIndex); |
| 1988 | auto* element = MWasmLoadTableElement::New(alloc(), elements, index); |
| 1989 | curBlock_->add(element); |
| 1990 | return element; |
| 1991 | } |
| 1992 | |
| 1993 | [[nodiscard]] bool tableSetAnyRef(uint32_t tableIndex, MDefinition* index, |
| 1994 | MDefinition* value, |
| 1995 | uint32_t lineOrBytecode) { |
| 1996 | // Load the table length and perform a bounds check with spectre index |
| 1997 | // masking |
| 1998 | auto* length = loadTableLength(tableIndex); |
| 1999 | auto* check = MWasmBoundsCheck::New( |
| 2000 | alloc(), index, length, bytecodeOffset(), MWasmBoundsCheck::Unknown); |
| 2001 | curBlock_->add(check); |
| 2002 | if (JitOptions.spectreIndexMasking) { |
| 2003 | index = check; |
| 2004 | } |
| 2005 | |
| 2006 | // Load the table elements |
| 2007 | auto* elements = loadTableElements(tableIndex); |
| 2008 | |
| 2009 | // Load the previous value |
| 2010 | auto* prevValue = MWasmLoadTableElement::New(alloc(), elements, index); |
| 2011 | curBlock_->add(prevValue); |
| 2012 | |
| 2013 | // Compute the value's location for the post barrier |
| 2014 | auto* loc = |
| 2015 | MWasmDerivedIndexPointer::New(alloc(), elements, index, ScalePointer); |
| 2016 | curBlock_->add(loc); |
| 2017 | |
| 2018 | // Store the new value |
| 2019 | auto* store = MWasmStoreRef::New( |
| 2020 | alloc(), instancePointer_, loc, /*valueOffset=*/0, value, |
| 2021 | AliasSet::WasmTableElement, WasmPreBarrierKind::Normal); |
| 2022 | curBlock_->add(store); |
| 2023 | |
| 2024 | // Perform the post barrier |
| 2025 | return postBarrierPrecise(lineOrBytecode, loc, prevValue); |
| 2026 | } |
| 2027 | |
| 2028 | void addInterruptCheck() { |
| 2029 | if (inDeadCode()) { |
| 2030 | return; |
| 2031 | } |
| 2032 | curBlock_->add( |
| 2033 | MWasmInterruptCheck::New(alloc(), instancePointer_, bytecodeOffset())); |
| 2034 | } |
| 2035 | |
| 2036 | // Perform a post-write barrier to update the generational store buffer. This |
| 2037 | // version will remove a previous store buffer entry if it is no longer |
| 2038 | // needed. |
| 2039 | [[nodiscard]] bool postBarrierPrecise(uint32_t lineOrBytecode, |
| 2040 | MDefinition* valueAddr, |
| 2041 | MDefinition* value) { |
| 2042 | return emitInstanceCall2(lineOrBytecode, SASigPostBarrierPrecise, valueAddr, |
| 2043 | value); |
| 2044 | } |
| 2045 | |
| 2046 | // Perform a post-write barrier to update the generational store buffer. This |
| 2047 | // version will remove a previous store buffer entry if it is no longer |
| 2048 | // needed. |
| 2049 | [[nodiscard]] bool postBarrierPreciseWithOffset(uint32_t lineOrBytecode, |
| 2050 | MDefinition* valueBase, |
| 2051 | uint32_t valueOffset, |
| 2052 | MDefinition* value) { |
| 2053 | MDefinition* valueOffsetDef = constantI32(int32_t(valueOffset)); |
| 2054 | if (!valueOffsetDef) { |
| 2055 | return false; |
| 2056 | } |
| 2057 | return emitInstanceCall3(lineOrBytecode, SASigPostBarrierPreciseWithOffset, |
| 2058 | valueBase, valueOffsetDef, value); |
| 2059 | } |
| 2060 | |
| 2061 | // Perform a post-write barrier to update the generational store buffer. This |
| 2062 | // version is the most efficient and only requires the address to store the |
| 2063 | // value and the new value. It does not remove a previous store buffer entry |
| 2064 | // if it is no longer needed, you must use a precise post-write barrier for |
| 2065 | // that. |
| 2066 | [[nodiscard]] bool postBarrierImmediate(uint32_t lineOrBytecode, |
| 2067 | MDefinition* object, |
| 2068 | MDefinition* valueBase, |
| 2069 | uint32_t valueOffset, |
| 2070 | MDefinition* newValue) { |
| 2071 | auto* barrier = MWasmPostWriteBarrierImmediate::New( |
| 2072 | alloc(), instancePointer_, object, valueBase, valueOffset, newValue); |
| 2073 | if (!barrier) { |
| 2074 | return false; |
| 2075 | } |
| 2076 | curBlock_->add(barrier); |
| 2077 | return true; |
| 2078 | } |
| 2079 | |
| 2080 | [[nodiscard]] bool postBarrierIndex(uint32_t lineOrBytecode, |
| 2081 | MDefinition* object, |
| 2082 | MDefinition* valueBase, |
| 2083 | MDefinition* index, uint32_t scale, |
| 2084 | MDefinition* newValue) { |
| 2085 | auto* barrier = MWasmPostWriteBarrierIndex::New( |
| 2086 | alloc(), instancePointer_, object, valueBase, index, scale, newValue); |
| 2087 | if (!barrier) { |
| 2088 | return false; |
| 2089 | } |
| 2090 | curBlock_->add(barrier); |
| 2091 | return true; |
| 2092 | } |
| 2093 | |
| 2094 | /***************************************************************** Calls */ |
| 2095 | |
| 2096 | // The IonMonkey backend maintains a single stack offset (from the stack |
| 2097 | // pointer to the base of the frame) by adding the total amount of spill |
| 2098 | // space required plus the maximum stack required for argument passing. |
| 2099 | // Since we do not use IonMonkey's MPrepareCall/MPassArg/MCall, we must |
| 2100 | // manually accumulate, for the entire function, the maximum required stack |
| 2101 | // space for argument passing. (This is passed to the CodeGenerator via |
| 2102 | // MIRGenerator::maxWasmStackArgBytes.) This is just be the maximum of the |
| 2103 | // stack space required for each individual call (as determined by the call |
| 2104 | // ABI). |
| 2105 | |
| 2106 | // Operations that modify a CallCompileState. |
| 2107 | |
| 2108 | [[nodiscard]] bool passInstance(MIRType instanceType, |
| 2109 | CallCompileState* args) { |
| 2110 | if (inDeadCode()) { |
| 2111 | return true; |
| 2112 | } |
| 2113 | |
| 2114 | // Should only pass an instance once. And it must be a non-GC pointer. |
| 2115 | MOZ_ASSERT(args->instanceArg_ == ABIArg())do { static_assert( mozilla::detail::AssertionConditionType< decltype(args->instanceArg_ == ABIArg())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(args->instanceArg_ == ABIArg ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("args->instanceArg_ == ABIArg()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2115); AnnotateMozCrashReason("MOZ_ASSERT" "(" "args->instanceArg_ == ABIArg()" ")"); do { *((volatile int*)__null) = 2115; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2116 | MOZ_ASSERT(instanceType == MIRType::Pointer)do { static_assert( mozilla::detail::AssertionConditionType< decltype(instanceType == MIRType::Pointer)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(instanceType == MIRType::Pointer ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "instanceType == MIRType::Pointer", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2116); AnnotateMozCrashReason("MOZ_ASSERT" "(" "instanceType == MIRType::Pointer" ")"); do { *((volatile int*)__null) = 2116; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2117 | args->instanceArg_ = args->abi_.next(MIRType::Pointer); |
| 2118 | return true; |
| 2119 | } |
| 2120 | |
| 2121 | // Do not call this directly. Call one of the passArg() variants instead. |
| 2122 | [[nodiscard]] bool passArgWorker(MDefinition* argDef, MIRType type, |
| 2123 | CallCompileState* call) { |
| 2124 | MOZ_ASSERT(argDef->type() == type)do { static_assert( mozilla::detail::AssertionConditionType< decltype(argDef->type() == type)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(argDef->type() == type))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("argDef->type() == type" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2124); AnnotateMozCrashReason("MOZ_ASSERT" "(" "argDef->type() == type" ")"); do { *((volatile int*)__null) = 2124; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2125 | |
| 2126 | ABIArg arg = call->abi_.next(type); |
| 2127 | switch (arg.kind()) { |
| 2128 | #ifdef JS_CODEGEN_REGISTER_PAIR |
| 2129 | case ABIArg::GPR_PAIR: { |
| 2130 | auto mirLow = |
| 2131 | MWrapInt64ToInt32::New(alloc(), argDef, /* bottomHalf = */ true); |
| 2132 | curBlock_->add(mirLow); |
| 2133 | auto mirHigh = |
| 2134 | MWrapInt64ToInt32::New(alloc(), argDef, /* bottomHalf = */ false); |
| 2135 | curBlock_->add(mirHigh); |
| 2136 | return call->regArgs_.append( |
| 2137 | MWasmCallBase::Arg(AnyRegister(arg.gpr64().low), mirLow)) && |
| 2138 | call->regArgs_.append( |
| 2139 | MWasmCallBase::Arg(AnyRegister(arg.gpr64().high), mirHigh)); |
| 2140 | } |
| 2141 | #endif |
| 2142 | case ABIArg::GPR: |
| 2143 | case ABIArg::FPU: |
| 2144 | return call->regArgs_.append(MWasmCallBase::Arg(arg.reg(), argDef)); |
| 2145 | case ABIArg::Stack: { |
| 2146 | auto* mir = |
| 2147 | MWasmStackArg::New(alloc(), arg.offsetFromArgBase(), argDef); |
| 2148 | curBlock_->add(mir); |
| 2149 | return true; |
| 2150 | } |
| 2151 | case ABIArg::Uninitialized: |
| 2152 | MOZ_ASSERT_UNREACHABLE("Uninitialized ABIArg kind")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "MOZ_ASSERT_UNREACHABLE: " "Uninitialized ABIArg kind" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2152); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "Uninitialized ABIArg kind" ")"); do { *((volatile int*)__null) = 2152; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2153 | } |
| 2154 | MOZ_CRASH("Unknown ABIArg kind.")do { do { } while (false); MOZ_ReportCrash("" "Unknown ABIArg kind." , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2154); AnnotateMozCrashReason("MOZ_CRASH(" "Unknown ABIArg kind." ")"); do { *((volatile int*)__null) = 2154; __attribute__((nomerge )) ::abort(); } while (false); } while (false); |
| 2155 | } |
| 2156 | |
| 2157 | template <typename VecT> |
| 2158 | [[nodiscard]] bool passArgs(const DefVector& argDefs, const VecT& types, |
| 2159 | CallCompileState* call) { |
| 2160 | MOZ_ASSERT(argDefs.length() == types.length())do { static_assert( mozilla::detail::AssertionConditionType< decltype(argDefs.length() == types.length())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(argDefs.length() == types.length ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("argDefs.length() == types.length()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2160); AnnotateMozCrashReason("MOZ_ASSERT" "(" "argDefs.length() == types.length()" ")"); do { *((volatile int*)__null) = 2160; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2161 | for (uint32_t i = 0; i < argDefs.length(); i++) { |
| 2162 | MDefinition* def = argDefs[i]; |
| 2163 | ValType type = types[i]; |
| 2164 | if (!passArg(def, type, call)) { |
| 2165 | return false; |
| 2166 | } |
| 2167 | } |
| 2168 | return true; |
| 2169 | } |
| 2170 | |
| 2171 | [[nodiscard]] bool passArg(MDefinition* argDef, MIRType type, |
| 2172 | CallCompileState* call) { |
| 2173 | if (inDeadCode()) { |
| 2174 | return true; |
| 2175 | } |
| 2176 | return passArgWorker(argDef, type, call); |
| 2177 | } |
| 2178 | |
| 2179 | [[nodiscard]] bool passArg(MDefinition* argDef, ValType type, |
| 2180 | CallCompileState* call) { |
| 2181 | if (inDeadCode()) { |
| 2182 | return true; |
| 2183 | } |
| 2184 | return passArgWorker(argDef, type.toMIRType(), call); |
| 2185 | } |
| 2186 | |
| 2187 | void markReturnCall(CallCompileState* call) { call->returnCall = true; } |
| 2188 | |
| 2189 | // If the call returns results on the stack, prepare a stack area to receive |
| 2190 | // them, and pass the address of the stack area to the callee as an additional |
| 2191 | // argument. |
| 2192 | [[nodiscard]] bool passStackResultAreaCallArg(const ResultType& resultType, |
| 2193 | CallCompileState* call) { |
| 2194 | if (inDeadCode()) { |
| 2195 | return true; |
| 2196 | } |
| 2197 | ABIResultIter iter(resultType); |
| 2198 | while (!iter.done() && iter.cur().inRegister()) { |
| 2199 | iter.next(); |
| 2200 | } |
| 2201 | if (iter.done()) { |
| 2202 | // No stack results. |
| 2203 | return true; |
| 2204 | } |
| 2205 | |
| 2206 | auto* stackResultArea = MWasmStackResultArea::New(alloc()); |
| 2207 | if (!stackResultArea) { |
| 2208 | return false; |
| 2209 | } |
| 2210 | if (!stackResultArea->init(alloc(), iter.remaining())) { |
| 2211 | return false; |
| 2212 | } |
| 2213 | for (uint32_t base = iter.index(); !iter.done(); iter.next()) { |
| 2214 | MWasmStackResultArea::StackResult loc(iter.cur().stackOffset(), |
| 2215 | iter.cur().type().toMIRType()); |
| 2216 | stackResultArea->initResult(iter.index() - base, loc); |
| 2217 | } |
| 2218 | curBlock_->add(stackResultArea); |
| 2219 | MDefinition* def = call->returnCall ? (MDefinition*)stackResultPointer_ |
| 2220 | : (MDefinition*)stackResultArea; |
| 2221 | if (!passArg(def, MIRType::StackResults, call)) { |
| 2222 | return false; |
| 2223 | } |
| 2224 | call->stackResultArea_ = stackResultArea; |
| 2225 | return true; |
| 2226 | } |
| 2227 | |
| 2228 | [[nodiscard]] bool finishCall(CallCompileState* call) { |
| 2229 | if (inDeadCode()) { |
| 2230 | return true; |
| 2231 | } |
| 2232 | |
| 2233 | if (!call->regArgs_.append( |
| 2234 | MWasmCallBase::Arg(AnyRegister(InstanceReg), instancePointer_))) { |
| 2235 | return false; |
| 2236 | } |
| 2237 | |
| 2238 | uint32_t stackBytes = call->abi_.stackBytesConsumedSoFar(); |
| 2239 | |
| 2240 | maxStackArgBytes_ = std::max(maxStackArgBytes_, stackBytes); |
| 2241 | return true; |
| 2242 | } |
| 2243 | |
| 2244 | // Wrappers for creating various kinds of calls. |
| 2245 | |
| 2246 | [[nodiscard]] bool collectUnaryCallResult(MIRType type, |
| 2247 | MDefinition** result) { |
| 2248 | MInstruction* def; |
| 2249 | switch (type) { |
| 2250 | case MIRType::Int32: |
| 2251 | def = MWasmRegisterResult::New(alloc(), MIRType::Int32, ReturnReg); |
| 2252 | break; |
| 2253 | case MIRType::Int64: |
| 2254 | def = MWasmRegister64Result::New(alloc(), ReturnReg64); |
| 2255 | break; |
| 2256 | case MIRType::Float32: |
| 2257 | def = MWasmFloatRegisterResult::New(alloc(), type, ReturnFloat32Reg); |
| 2258 | break; |
| 2259 | case MIRType::Double: |
| 2260 | def = MWasmFloatRegisterResult::New(alloc(), type, ReturnDoubleReg); |
| 2261 | break; |
| 2262 | #ifdef ENABLE_WASM_SIMD1 |
| 2263 | case MIRType::Simd128: |
| 2264 | def = MWasmFloatRegisterResult::New(alloc(), type, ReturnSimd128Reg); |
| 2265 | break; |
| 2266 | #endif |
| 2267 | case MIRType::WasmAnyRef: |
| 2268 | def = MWasmRegisterResult::New(alloc(), MIRType::WasmAnyRef, ReturnReg); |
| 2269 | break; |
| 2270 | default: |
| 2271 | MOZ_CRASH("unexpected MIRType result for builtin call")do { do { } while (false); MOZ_ReportCrash("" "unexpected MIRType result for builtin call" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2271); AnnotateMozCrashReason("MOZ_CRASH(" "unexpected MIRType result for builtin call" ")"); do { *((volatile int*)__null) = 2271; __attribute__((nomerge )) ::abort(); } while (false); } while (false); |
| 2272 | } |
| 2273 | |
| 2274 | if (!def) { |
| 2275 | return false; |
| 2276 | } |
| 2277 | |
| 2278 | curBlock_->add(def); |
| 2279 | *result = def; |
| 2280 | |
| 2281 | return true; |
| 2282 | } |
| 2283 | |
| 2284 | [[nodiscard]] bool collectCallResults(const ResultType& type, |
| 2285 | MWasmStackResultArea* stackResultArea, |
| 2286 | DefVector* results) { |
| 2287 | if (!results->reserve(type.length())) { |
| 2288 | return false; |
| 2289 | } |
| 2290 | |
| 2291 | // The result iterator goes in the order in which results would be popped |
| 2292 | // off; we want the order in which they would be pushed. |
| 2293 | ABIResultIter iter(type); |
| 2294 | uint32_t stackResultCount = 0; |
| 2295 | while (!iter.done()) { |
| 2296 | if (iter.cur().onStack()) { |
| 2297 | stackResultCount++; |
| 2298 | } |
| 2299 | iter.next(); |
| 2300 | } |
| 2301 | |
| 2302 | for (iter.switchToPrev(); !iter.done(); iter.prev()) { |
| 2303 | if (!mirGen().ensureBallast()) { |
| 2304 | return false; |
| 2305 | } |
| 2306 | const ABIResult& result = iter.cur(); |
| 2307 | MInstruction* def; |
| 2308 | if (result.inRegister()) { |
| 2309 | switch (result.type().kind()) { |
| 2310 | case wasm::ValType::I32: |
| 2311 | def = |
| 2312 | MWasmRegisterResult::New(alloc(), MIRType::Int32, result.gpr()); |
| 2313 | break; |
| 2314 | case wasm::ValType::I64: |
| 2315 | def = MWasmRegister64Result::New(alloc(), result.gpr64()); |
| 2316 | break; |
| 2317 | case wasm::ValType::F32: |
| 2318 | def = MWasmFloatRegisterResult::New(alloc(), MIRType::Float32, |
| 2319 | result.fpr()); |
| 2320 | break; |
| 2321 | case wasm::ValType::F64: |
| 2322 | def = MWasmFloatRegisterResult::New(alloc(), MIRType::Double, |
| 2323 | result.fpr()); |
| 2324 | break; |
| 2325 | case wasm::ValType::Ref: |
| 2326 | def = MWasmRegisterResult::New(alloc(), MIRType::WasmAnyRef, |
| 2327 | result.gpr()); |
| 2328 | break; |
| 2329 | case wasm::ValType::V128: |
| 2330 | #ifdef ENABLE_WASM_SIMD1 |
| 2331 | def = MWasmFloatRegisterResult::New(alloc(), MIRType::Simd128, |
| 2332 | result.fpr()); |
| 2333 | #else |
| 2334 | return this->iter().fail("Ion has no SIMD support yet"); |
| 2335 | #endif |
| 2336 | } |
| 2337 | } else { |
| 2338 | MOZ_ASSERT(stackResultArea)do { static_assert( mozilla::detail::AssertionConditionType< decltype(stackResultArea)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(stackResultArea))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("stackResultArea" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2338); AnnotateMozCrashReason("MOZ_ASSERT" "(" "stackResultArea" ")"); do { *((volatile int*)__null) = 2338; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2339 | MOZ_ASSERT(stackResultCount)do { static_assert( mozilla::detail::AssertionConditionType< decltype(stackResultCount)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(stackResultCount))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("stackResultCount" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2339); AnnotateMozCrashReason("MOZ_ASSERT" "(" "stackResultCount" ")"); do { *((volatile int*)__null) = 2339; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2340 | uint32_t idx = --stackResultCount; |
| 2341 | def = MWasmStackResult::New(alloc(), stackResultArea, idx); |
| 2342 | } |
| 2343 | |
| 2344 | if (!def) { |
| 2345 | return false; |
| 2346 | } |
| 2347 | curBlock_->add(def); |
| 2348 | results->infallibleAppend(def); |
| 2349 | } |
| 2350 | |
| 2351 | MOZ_ASSERT(results->length() == type.length())do { static_assert( mozilla::detail::AssertionConditionType< decltype(results->length() == type.length())>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(results->length() == type.length()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("results->length() == type.length()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2351); AnnotateMozCrashReason("MOZ_ASSERT" "(" "results->length() == type.length()" ")"); do { *((volatile int*)__null) = 2351; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2352 | |
| 2353 | return true; |
| 2354 | } |
| 2355 | |
| 2356 | [[nodiscard]] bool catchableCall(const CallSiteDesc& desc, |
| 2357 | const CalleeDesc& callee, |
| 2358 | const MWasmCallBase::Args& args, |
| 2359 | const ArgTypeVector& argTypes, |
| 2360 | MDefinition* indexOrRef = nullptr) { |
| 2361 | MWasmCallTryDesc tryDesc; |
| 2362 | if (!beginTryCall(&tryDesc)) { |
| 2363 | return false; |
| 2364 | } |
| 2365 | |
| 2366 | MInstruction* ins; |
| 2367 | if (tryDesc.inTry) { |
| 2368 | ins = MWasmCallCatchable::New(alloc(), desc, callee, args, |
| 2369 | StackArgAreaSizeUnaligned(argTypes), |
| 2370 | tryDesc, indexOrRef); |
| 2371 | } else { |
| 2372 | ins = MWasmCallUncatchable::New(alloc(), desc, callee, args, |
| 2373 | StackArgAreaSizeUnaligned(argTypes), |
| 2374 | indexOrRef); |
| 2375 | } |
| 2376 | if (!ins) { |
| 2377 | return false; |
| 2378 | } |
| 2379 | curBlock_->add(ins); |
| 2380 | |
| 2381 | return finishTryCall(&tryDesc); |
| 2382 | } |
| 2383 | |
| 2384 | [[nodiscard]] |
| 2385 | bool shouldInlineCallDirect(uint32_t funcIndex) { |
| 2386 | // We only support this mode when lazy tiering. This is currently a |
| 2387 | // requirement because we need the full module bytecode and function |
| 2388 | // definition ranges, which are not available in other modes. |
| 2389 | if (compilerEnv().mode() != CompileMode::LazyTiering) { |
| 2390 | return false; |
| 2391 | } |
| 2392 | |
| 2393 | // Limit the inlining depth. |
| 2394 | if (inliningDepth() > JS::Prefs::wasm_experimental_inline_depth_limit()) { |
| 2395 | return false; |
| 2396 | } |
| 2397 | |
| 2398 | // We temporarily do not support inlining when there's a try handler |
| 2399 | // active. |
| 2400 | if (inTryCode()) { |
| 2401 | return false; |
| 2402 | } |
| 2403 | |
| 2404 | // We do not support inlining a callee which uses tail calls |
| 2405 | FeatureUsage funcFeatureUsage = codeMeta().funcDefFeatureUsage(funcIndex); |
| 2406 | if (funcFeatureUsage & FeatureUsage::ReturnCall) { |
| 2407 | return false; |
| 2408 | } |
| 2409 | |
| 2410 | // Limit the callee function to under a specific size. |
| 2411 | const FuncDefRange& funcRange = codeMeta().funcDefRange(funcIndex); |
| 2412 | return funcRange.bodyLength <= |
| 2413 | JS::Prefs::wasm_experimental_inline_size_limit(); |
| 2414 | } |
| 2415 | |
| 2416 | [[nodiscard]] |
| 2417 | bool finishInlinedCallDirect(FunctionCompiler& calleeCompiler, |
| 2418 | DefVector* results) { |
| 2419 | const PendingInlineReturnVector& calleeReturns = |
| 2420 | calleeCompiler.pendingInlineReturns_; |
| 2421 | const FuncType& calleeFuncType = calleeCompiler.funcType(); |
| 2422 | |
| 2423 | // Add the observed features from the inlined function to this function |
| 2424 | iter_.addFeatureUsage(calleeCompiler.featureUsage()); |
| 2425 | |
| 2426 | // If there were no returns, then we are now in dead code |
| 2427 | if (calleeReturns.empty()) { |
| 2428 | curBlock_ = nullptr; |
| 2429 | return true; |
| 2430 | } |
| 2431 | |
| 2432 | // Create a block to join all of the returns from the inlined function |
| 2433 | MBasicBlock* lastBlockBeforeCall = curBlock_; |
| 2434 | MBasicBlock* joinAfterCall = nullptr; |
| 2435 | if (!newBlock(nullptr, &joinAfterCall)) { |
| 2436 | return false; |
| 2437 | } |
| 2438 | |
| 2439 | // The join block inherits all of the locals state from immediately before |
| 2440 | // the inlined call |
| 2441 | joinAfterCall->inheritSlots(lastBlockBeforeCall); |
| 2442 | |
| 2443 | // The join block has a phi node for every result of the inlined function |
| 2444 | // type. Each phi node has an operand for each of the returns of the |
| 2445 | // inlined function. |
| 2446 | for (uint32_t i = 0; i < calleeFuncType.results().length(); i++) { |
| 2447 | MPhi* phi = MPhi::New(alloc(), calleeFuncType.results()[i].toMIRType()); |
| 2448 | if (!phi || !phi->reserveLength(calleeReturns.length())) { |
| 2449 | return false; |
| 2450 | } |
| 2451 | joinAfterCall->addPhi(phi); |
| 2452 | if (!results->append(phi)) { |
| 2453 | return false; |
| 2454 | } |
| 2455 | } |
| 2456 | |
| 2457 | // Bind every return from the inlined function to go to the join block, and |
| 2458 | // add the results for the return to the phi nodes. |
| 2459 | for (size_t i = 0; i < calleeReturns.length(); i++) { |
| 2460 | const PendingInlineReturn& calleeReturn = calleeReturns[i]; |
| 2461 | |
| 2462 | // Setup the predecessor and successor relationship |
| 2463 | MBasicBlock* pred = calleeReturn.jump->block(); |
| 2464 | if (!joinAfterCall->addPredecessorWithoutPhis(pred)) { |
| 2465 | return false; |
| 2466 | } |
| 2467 | calleeReturn.jump->replaceSuccessor(MGoto::TargetIndex, joinAfterCall); |
| 2468 | |
| 2469 | // For each result in this return, add it to the corresponding phi node |
| 2470 | for (uint32_t resultIndex = 0; |
| 2471 | resultIndex < calleeFuncType.results().length(); resultIndex++) { |
| 2472 | MDefinition* result = (*results)[resultIndex]; |
| 2473 | ((MPhi*)(result))->addInput(calleeReturn.results[resultIndex]); |
| 2474 | } |
| 2475 | } |
| 2476 | |
| 2477 | // Continue MIR generation starting in the join block |
| 2478 | curBlock_ = joinAfterCall; |
| 2479 | |
| 2480 | return true; |
| 2481 | } |
| 2482 | |
| 2483 | [[nodiscard]] bool callDirect(const FuncType& funcType, uint32_t funcIndex, |
| 2484 | uint32_t lineOrBytecode, |
| 2485 | const CallCompileState& call, |
| 2486 | DefVector* results) { |
| 2487 | MOZ_ASSERT(!inDeadCode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!inDeadCode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!inDeadCode()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!inDeadCode()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2487); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!inDeadCode()" ")"); do { *((volatile int*)__null) = 2487; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2488 | |
| 2489 | CallSiteDesc desc(lineOrBytecode, CallSiteDesc::Func); |
| 2490 | ResultType resultType = ResultType::Vector(funcType.results()); |
| 2491 | auto callee = CalleeDesc::function(funcIndex); |
| 2492 | ArgTypeVector args(funcType); |
| 2493 | |
| 2494 | if (!catchableCall(desc, callee, call.regArgs_, args)) { |
| 2495 | return false; |
| 2496 | } |
| 2497 | return collectCallResults(resultType, call.stackResultArea_, results); |
| 2498 | } |
| 2499 | |
| 2500 | [[nodiscard]] bool returnCallDirect(const FuncType& funcType, |
| 2501 | uint32_t funcIndex, |
| 2502 | uint32_t lineOrBytecode, |
| 2503 | const CallCompileState& call, |
| 2504 | DefVector* results) { |
| 2505 | MOZ_ASSERT(!inDeadCode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!inDeadCode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!inDeadCode()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!inDeadCode()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2505); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!inDeadCode()" ")"); do { *((volatile int*)__null) = 2505; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2506 | |
| 2507 | // We do not support tail calls in inlined functions. |
| 2508 | MOZ_RELEASE_ASSERT(!isInlined())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!isInlined())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!isInlined()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!isInlined()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2508); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "!isInlined()" ")"); do { *((volatile int*)__null) = 2508; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2509 | |
| 2510 | CallSiteDesc desc(lineOrBytecode, CallSiteDesc::ReturnFunc); |
| 2511 | auto callee = CalleeDesc::function(funcIndex); |
| 2512 | ArgTypeVector args(funcType); |
| 2513 | |
| 2514 | auto ins = MWasmReturnCall::New(alloc(), desc, callee, call.regArgs_, |
| 2515 | StackArgAreaSizeUnaligned(args), nullptr); |
| 2516 | if (!ins) { |
| 2517 | return false; |
| 2518 | } |
| 2519 | curBlock_->end(ins); |
| 2520 | curBlock_ = nullptr; |
| 2521 | return true; |
| 2522 | } |
| 2523 | |
| 2524 | [[nodiscard]] bool returnCallImport(unsigned globalDataOffset, |
| 2525 | uint32_t lineOrBytecode, |
| 2526 | const CallCompileState& call, |
| 2527 | const FuncType& funcType, |
| 2528 | DefVector* results) { |
| 2529 | MOZ_ASSERT(!inDeadCode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!inDeadCode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!inDeadCode()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!inDeadCode()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2529); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!inDeadCode()" ")"); do { *((volatile int*)__null) = 2529; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2530 | |
| 2531 | // We do not support tail calls in inlined functions. |
| 2532 | MOZ_RELEASE_ASSERT(!isInlined())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!isInlined())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!isInlined()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!isInlined()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2532); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "!isInlined()" ")"); do { *((volatile int*)__null) = 2532; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2533 | |
| 2534 | CallSiteDesc desc(lineOrBytecode, CallSiteDesc::Import); |
| 2535 | auto callee = CalleeDesc::import(globalDataOffset); |
| 2536 | ArgTypeVector args(funcType); |
| 2537 | |
| 2538 | auto* ins = MWasmReturnCall::New(alloc(), desc, callee, call.regArgs_, |
| 2539 | StackArgAreaSizeUnaligned(args), nullptr); |
| 2540 | if (!ins) { |
| 2541 | return false; |
| 2542 | } |
| 2543 | curBlock_->end(ins); |
| 2544 | curBlock_ = nullptr; |
| 2545 | return true; |
| 2546 | } |
| 2547 | |
| 2548 | [[nodiscard]] bool returnCallIndirect(uint32_t funcTypeIndex, |
| 2549 | uint32_t tableIndex, MDefinition* index, |
| 2550 | uint32_t lineOrBytecode, |
| 2551 | const CallCompileState& call, |
| 2552 | DefVector* results) { |
| 2553 | MOZ_ASSERT(!inDeadCode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!inDeadCode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!inDeadCode()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!inDeadCode()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2553); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!inDeadCode()" ")"); do { *((volatile int*)__null) = 2553; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2554 | |
| 2555 | // We do not support tail calls in inlined functions. |
| 2556 | MOZ_RELEASE_ASSERT(!isInlined())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!isInlined())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!isInlined()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!isInlined()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2556); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "!isInlined()" ")"); do { *((volatile int*)__null) = 2556; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2557 | |
| 2558 | const FuncType& funcType = (*codeMeta_.types)[funcTypeIndex].funcType(); |
| 2559 | CallIndirectId callIndirectId = |
| 2560 | CallIndirectId::forFuncType(codeMeta_, funcTypeIndex); |
| 2561 | |
| 2562 | CalleeDesc callee; |
| 2563 | MOZ_ASSERT(callIndirectId.kind() != CallIndirectIdKind::AsmJS)do { static_assert( mozilla::detail::AssertionConditionType< decltype(callIndirectId.kind() != CallIndirectIdKind::AsmJS)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(callIndirectId.kind() != CallIndirectIdKind::AsmJS)) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("callIndirectId.kind() != CallIndirectIdKind::AsmJS" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2563); AnnotateMozCrashReason("MOZ_ASSERT" "(" "callIndirectId.kind() != CallIndirectIdKind::AsmJS" ")"); do { *((volatile int*)__null) = 2563; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2564 | const TableDesc& table = codeMeta_.tables[tableIndex]; |
| 2565 | callee = |
| 2566 | CalleeDesc::wasmTable(codeMeta_, table, tableIndex, callIndirectId); |
| 2567 | |
| 2568 | CallSiteDesc desc(lineOrBytecode, CallSiteDesc::Indirect); |
| 2569 | ArgTypeVector args(funcType); |
| 2570 | |
| 2571 | MDefinition* index32 = tableIndexToI32(table.indexType(), index); |
| 2572 | if (!index32) { |
| 2573 | return false; |
| 2574 | } |
| 2575 | |
| 2576 | auto* ins = MWasmReturnCall::New(alloc(), desc, callee, call.regArgs_, |
| 2577 | StackArgAreaSizeUnaligned(args), index32); |
| 2578 | if (!ins) { |
| 2579 | return false; |
| 2580 | } |
| 2581 | curBlock_->end(ins); |
| 2582 | curBlock_ = nullptr; |
| 2583 | return true; |
| 2584 | } |
| 2585 | |
| 2586 | [[nodiscard]] bool callIndirect(uint32_t funcTypeIndex, uint32_t tableIndex, |
| 2587 | MDefinition* index, uint32_t lineOrBytecode, |
| 2588 | const CallCompileState& call, |
| 2589 | DefVector* results) { |
| 2590 | MOZ_ASSERT(!inDeadCode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!inDeadCode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!inDeadCode()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!inDeadCode()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2590); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!inDeadCode()" ")"); do { *((volatile int*)__null) = 2590; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2591 | |
| 2592 | const FuncType& funcType = (*codeMeta_.types)[funcTypeIndex].funcType(); |
| 2593 | CallIndirectId callIndirectId = |
| 2594 | CallIndirectId::forFuncType(codeMeta_, funcTypeIndex); |
| 2595 | |
| 2596 | CalleeDesc callee; |
| 2597 | if (codeMeta_.isAsmJS()) { |
| 2598 | MOZ_ASSERT(tableIndex == 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(tableIndex == 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(tableIndex == 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("tableIndex == 0" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2598); AnnotateMozCrashReason("MOZ_ASSERT" "(" "tableIndex == 0" ")"); do { *((volatile int*)__null) = 2598; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2599 | MOZ_ASSERT(callIndirectId.kind() == CallIndirectIdKind::AsmJS)do { static_assert( mozilla::detail::AssertionConditionType< decltype(callIndirectId.kind() == CallIndirectIdKind::AsmJS)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(callIndirectId.kind() == CallIndirectIdKind::AsmJS)) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("callIndirectId.kind() == CallIndirectIdKind::AsmJS" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2599); AnnotateMozCrashReason("MOZ_ASSERT" "(" "callIndirectId.kind() == CallIndirectIdKind::AsmJS" ")"); do { *((volatile int*)__null) = 2599; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2600 | uint32_t tableIndex = codeMeta_.asmJSSigToTableIndex[funcTypeIndex]; |
| 2601 | const TableDesc& table = codeMeta_.tables[tableIndex]; |
| 2602 | MOZ_ASSERT(IsPowerOfTwo(table.initialLength()))do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsPowerOfTwo(table.initialLength()))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsPowerOfTwo(table.initialLength ())))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("IsPowerOfTwo(table.initialLength())", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2602); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsPowerOfTwo(table.initialLength())" ")"); do { *((volatile int*)__null) = 2602; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2603 | |
| 2604 | MDefinition* mask = constantI32(int32_t(table.initialLength() - 1)); |
| 2605 | MBitAnd* maskedIndex = MBitAnd::New(alloc(), index, mask, MIRType::Int32); |
| 2606 | curBlock_->add(maskedIndex); |
| 2607 | |
| 2608 | index = maskedIndex; |
| 2609 | callee = CalleeDesc::asmJSTable(codeMeta_, tableIndex); |
| 2610 | } else { |
| 2611 | MOZ_ASSERT(callIndirectId.kind() != CallIndirectIdKind::AsmJS)do { static_assert( mozilla::detail::AssertionConditionType< decltype(callIndirectId.kind() != CallIndirectIdKind::AsmJS)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(callIndirectId.kind() != CallIndirectIdKind::AsmJS)) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("callIndirectId.kind() != CallIndirectIdKind::AsmJS" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2611); AnnotateMozCrashReason("MOZ_ASSERT" "(" "callIndirectId.kind() != CallIndirectIdKind::AsmJS" ")"); do { *((volatile int*)__null) = 2611; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2612 | const TableDesc& table = codeMeta_.tables[tableIndex]; |
| 2613 | callee = |
| 2614 | CalleeDesc::wasmTable(codeMeta_, table, tableIndex, callIndirectId); |
| 2615 | index = tableIndexToI32(table.indexType(), index); |
| 2616 | if (!index) { |
| 2617 | return false; |
| 2618 | } |
| 2619 | } |
| 2620 | |
| 2621 | CallSiteDesc desc(lineOrBytecode, CallSiteDesc::Indirect); |
| 2622 | ArgTypeVector args(funcType); |
| 2623 | ResultType resultType = ResultType::Vector(funcType.results()); |
| 2624 | |
| 2625 | if (!catchableCall(desc, callee, call.regArgs_, args, index)) { |
| 2626 | return false; |
| 2627 | } |
| 2628 | return collectCallResults(resultType, call.stackResultArea_, results); |
| 2629 | } |
| 2630 | |
| 2631 | [[nodiscard]] bool callImport(unsigned instanceDataOffset, |
| 2632 | uint32_t lineOrBytecode, |
| 2633 | const CallCompileState& call, |
| 2634 | const FuncType& funcType, DefVector* results) { |
| 2635 | MOZ_ASSERT(!inDeadCode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!inDeadCode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!inDeadCode()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!inDeadCode()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2635); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!inDeadCode()" ")"); do { *((volatile int*)__null) = 2635; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2636 | |
| 2637 | CallSiteDesc desc(lineOrBytecode, CallSiteDesc::Import); |
| 2638 | auto callee = CalleeDesc::import(instanceDataOffset); |
| 2639 | ArgTypeVector args(funcType); |
| 2640 | ResultType resultType = ResultType::Vector(funcType.results()); |
| 2641 | |
| 2642 | if (!catchableCall(desc, callee, call.regArgs_, args)) { |
| 2643 | return false; |
| 2644 | } |
| 2645 | return collectCallResults(resultType, call.stackResultArea_, results); |
| 2646 | } |
| 2647 | |
| 2648 | [[nodiscard]] bool builtinCall(const SymbolicAddressSignature& builtin, |
| 2649 | uint32_t lineOrBytecode, |
| 2650 | const CallCompileState& call, |
| 2651 | MDefinition** def) { |
| 2652 | if (inDeadCode()) { |
| 2653 | *def = nullptr; |
| 2654 | return true; |
| 2655 | } |
| 2656 | |
| 2657 | MOZ_ASSERT(builtin.failureMode == FailureMode::Infallible)do { static_assert( mozilla::detail::AssertionConditionType< decltype(builtin.failureMode == FailureMode::Infallible)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(builtin.failureMode == FailureMode::Infallible))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("builtin.failureMode == FailureMode::Infallible" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2657); AnnotateMozCrashReason("MOZ_ASSERT" "(" "builtin.failureMode == FailureMode::Infallible" ")"); do { *((volatile int*)__null) = 2657; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2658 | |
| 2659 | CallSiteDesc desc(lineOrBytecode, CallSiteDesc::Symbolic); |
| 2660 | auto callee = CalleeDesc::builtin(builtin.identity); |
| 2661 | auto* ins = MWasmCallUncatchable::New(alloc(), desc, callee, call.regArgs_, |
| 2662 | StackArgAreaSizeUnaligned(builtin)); |
| 2663 | if (!ins) { |
| 2664 | return false; |
| 2665 | } |
| 2666 | |
| 2667 | curBlock_->add(ins); |
| 2668 | |
| 2669 | return collectUnaryCallResult(builtin.retType, def); |
| 2670 | } |
| 2671 | |
| 2672 | [[nodiscard]] bool builtinInstanceMethodCall( |
| 2673 | const SymbolicAddressSignature& builtin, uint32_t lineOrBytecode, |
| 2674 | const CallCompileState& call, MDefinition** def = nullptr) { |
| 2675 | MOZ_ASSERT_IF(!def, builtin.retType == MIRType::None)do { if (!def) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(builtin.retType == MIRType::None)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(builtin.retType == MIRType:: None))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("builtin.retType == MIRType::None", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2675); AnnotateMozCrashReason("MOZ_ASSERT" "(" "builtin.retType == MIRType::None" ")"); do { *((volatile int*)__null) = 2675; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 2676 | if (inDeadCode()) { |
| 2677 | if (def) { |
| 2678 | *def = nullptr; |
| 2679 | } |
| 2680 | return true; |
| 2681 | } |
| 2682 | |
| 2683 | CallSiteDesc desc(lineOrBytecode, CallSiteDesc::Symbolic); |
| 2684 | MWasmCallTryDesc tryDesc; |
| 2685 | if (!beginTryCall(&tryDesc)) { |
| 2686 | return false; |
| 2687 | } |
| 2688 | |
| 2689 | MInstruction* ins; |
| 2690 | if (tryDesc.inTry) { |
| 2691 | ins = MWasmCallCatchable::NewBuiltinInstanceMethodCall( |
| 2692 | alloc(), desc, builtin.identity, builtin.failureMode, |
| 2693 | call.instanceArg_, call.regArgs_, StackArgAreaSizeUnaligned(builtin), |
| 2694 | tryDesc); |
| 2695 | } else { |
| 2696 | ins = MWasmCallUncatchable::NewBuiltinInstanceMethodCall( |
| 2697 | alloc(), desc, builtin.identity, builtin.failureMode, |
| 2698 | call.instanceArg_, call.regArgs_, StackArgAreaSizeUnaligned(builtin)); |
| 2699 | } |
| 2700 | if (!ins) { |
| 2701 | return false; |
| 2702 | } |
| 2703 | curBlock_->add(ins); |
| 2704 | |
| 2705 | if (!finishTryCall(&tryDesc)) { |
| 2706 | return false; |
| 2707 | } |
| 2708 | |
| 2709 | if (!def) { |
| 2710 | return true; |
| 2711 | } |
| 2712 | return collectUnaryCallResult(builtin.retType, def); |
| 2713 | } |
| 2714 | |
| 2715 | [[nodiscard]] bool stackSwitch(MDefinition* suspender, MDefinition* fn, |
| 2716 | MDefinition* data, StackSwitchKind kind) { |
| 2717 | MOZ_ASSERT(!inDeadCode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!inDeadCode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!inDeadCode()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!inDeadCode()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2717); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!inDeadCode()" ")"); do { *((volatile int*)__null) = 2717; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2718 | |
| 2719 | MInstruction* ins; |
| 2720 | switch (kind) { |
| 2721 | case StackSwitchKind::SwitchToMain: |
| 2722 | ins = MWasmStackSwitchToMain::New(alloc(), suspender, fn, data); |
| 2723 | break; |
| 2724 | case StackSwitchKind::SwitchToSuspendable: |
| 2725 | ins = MWasmStackSwitchToSuspendable::New(alloc(), suspender, fn, data); |
| 2726 | break; |
| 2727 | case StackSwitchKind::ContinueOnSuspendable: |
| 2728 | ins = MWasmStackContinueOnSuspendable::New(alloc(), suspender); |
| 2729 | break; |
| 2730 | } |
| 2731 | if (!ins) { |
| 2732 | return false; |
| 2733 | } |
| 2734 | |
| 2735 | curBlock_->add(ins); |
| 2736 | |
| 2737 | return true; |
| 2738 | } |
| 2739 | |
| 2740 | #ifdef ENABLE_WASM_GC1 |
| 2741 | [[nodiscard]] bool callRef(const FuncType& funcType, MDefinition* ref, |
| 2742 | uint32_t lineOrBytecode, |
| 2743 | const CallCompileState& call, DefVector* results) { |
| 2744 | MOZ_ASSERT(!inDeadCode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!inDeadCode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!inDeadCode()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!inDeadCode()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2744); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!inDeadCode()" ")"); do { *((volatile int*)__null) = 2744; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2745 | |
| 2746 | CalleeDesc callee = CalleeDesc::wasmFuncRef(); |
| 2747 | |
| 2748 | CallSiteDesc desc(lineOrBytecode, CallSiteDesc::FuncRef); |
| 2749 | ArgTypeVector args(funcType); |
| 2750 | ResultType resultType = ResultType::Vector(funcType.results()); |
| 2751 | |
| 2752 | if (!catchableCall(desc, callee, call.regArgs_, args, ref)) { |
| 2753 | return false; |
| 2754 | } |
| 2755 | return collectCallResults(resultType, call.stackResultArea_, results); |
| 2756 | } |
| 2757 | |
| 2758 | # ifdef ENABLE_WASM_TAIL_CALLS1 |
| 2759 | [[nodiscard]] bool returnCallRef(const FuncType& funcType, MDefinition* ref, |
| 2760 | uint32_t lineOrBytecode, |
| 2761 | const CallCompileState& call, |
| 2762 | DefVector* results) { |
| 2763 | MOZ_ASSERT(!inDeadCode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!inDeadCode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!inDeadCode()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!inDeadCode()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2763); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!inDeadCode()" ")"); do { *((volatile int*)__null) = 2763; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2764 | |
| 2765 | CalleeDesc callee = CalleeDesc::wasmFuncRef(); |
| 2766 | |
| 2767 | CallSiteDesc desc(lineOrBytecode, CallSiteDesc::FuncRef); |
| 2768 | ArgTypeVector args(funcType); |
| 2769 | |
| 2770 | auto* ins = MWasmReturnCall::New(alloc(), desc, callee, call.regArgs_, |
| 2771 | StackArgAreaSizeUnaligned(args), ref); |
| 2772 | if (!ins) { |
| 2773 | return false; |
| 2774 | } |
| 2775 | curBlock_->end(ins); |
| 2776 | curBlock_ = nullptr; |
| 2777 | return true; |
| 2778 | } |
| 2779 | |
| 2780 | # endif // ENABLE_WASM_TAIL_CALLS |
| 2781 | |
| 2782 | #endif // ENABLE_WASM_GC |
| 2783 | |
| 2784 | /*********************************************** Control flow generation */ |
| 2785 | |
| 2786 | inline bool inDeadCode() const { return curBlock_ == nullptr; } |
| 2787 | |
| 2788 | [[nodiscard]] bool returnValues(DefVector&& values) { |
| 2789 | if (inDeadCode()) { |
| 2790 | return true; |
| 2791 | } |
| 2792 | |
| 2793 | // If we're inlined into another function, we must accumulate the returns |
| 2794 | // so that they can be patched into the caller function. |
| 2795 | if (isInlined()) { |
| 2796 | MGoto* jump = MGoto::New(alloc()); |
| 2797 | if (!jump) { |
| 2798 | return false; |
| 2799 | } |
| 2800 | curBlock_->end(jump); |
| 2801 | curBlock_ = nullptr; |
| 2802 | return pendingInlineReturns_.emplaceBack( |
| 2803 | PendingInlineReturn(jump, std::move(values))); |
| 2804 | } |
| 2805 | |
| 2806 | if (values.empty()) { |
| 2807 | curBlock_->end(MWasmReturnVoid::New(alloc(), instancePointer_)); |
| 2808 | } else { |
| 2809 | ResultType resultType = ResultType::Vector(funcType().results()); |
| 2810 | ABIResultIter iter(resultType); |
| 2811 | // Switch to iterate in FIFO order instead of the default LIFO. |
| 2812 | while (!iter.done()) { |
| 2813 | iter.next(); |
| 2814 | } |
| 2815 | iter.switchToPrev(); |
| 2816 | for (uint32_t i = 0; !iter.done(); iter.prev(), i++) { |
| 2817 | if (!mirGen().ensureBallast()) { |
| 2818 | return false; |
| 2819 | } |
| 2820 | const ABIResult& result = iter.cur(); |
| 2821 | if (result.onStack()) { |
| 2822 | MOZ_ASSERT(iter.remaining() > 1)do { static_assert( mozilla::detail::AssertionConditionType< decltype(iter.remaining() > 1)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(iter.remaining() > 1))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("iter.remaining() > 1" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2822); AnnotateMozCrashReason("MOZ_ASSERT" "(" "iter.remaining() > 1" ")"); do { *((volatile int*)__null) = 2822; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2823 | if (result.type().isRefRepr()) { |
| 2824 | auto* store = MWasmStoreRef::New( |
| 2825 | alloc(), instancePointer_, stackResultPointer_, |
| 2826 | result.stackOffset(), values[i], AliasSet::WasmStackResult, |
| 2827 | WasmPreBarrierKind::None); |
| 2828 | curBlock_->add(store); |
| 2829 | } else { |
| 2830 | auto* store = MWasmStoreStackResult::New( |
| 2831 | alloc(), stackResultPointer_, result.stackOffset(), values[i]); |
| 2832 | curBlock_->add(store); |
| 2833 | } |
| 2834 | } else { |
| 2835 | MOZ_ASSERT(iter.remaining() == 1)do { static_assert( mozilla::detail::AssertionConditionType< decltype(iter.remaining() == 1)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(iter.remaining() == 1))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("iter.remaining() == 1" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2835); AnnotateMozCrashReason("MOZ_ASSERT" "(" "iter.remaining() == 1" ")"); do { *((volatile int*)__null) = 2835; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2836 | MOZ_ASSERT(i + 1 == values.length())do { static_assert( mozilla::detail::AssertionConditionType< decltype(i + 1 == values.length())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(i + 1 == values.length()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("i + 1 == values.length()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2836); AnnotateMozCrashReason("MOZ_ASSERT" "(" "i + 1 == values.length()" ")"); do { *((volatile int*)__null) = 2836; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2837 | curBlock_->end( |
| 2838 | MWasmReturn::New(alloc(), values[i], instancePointer_)); |
| 2839 | } |
| 2840 | } |
| 2841 | } |
| 2842 | curBlock_ = nullptr; |
| 2843 | return true; |
| 2844 | } |
| 2845 | |
| 2846 | void unreachableTrap() { |
| 2847 | if (inDeadCode()) { |
| 2848 | return; |
| 2849 | } |
| 2850 | |
| 2851 | auto* ins = |
| 2852 | MWasmTrap::New(alloc(), wasm::Trap::Unreachable, bytecodeOffset()); |
| 2853 | curBlock_->end(ins); |
| 2854 | curBlock_ = nullptr; |
| 2855 | } |
| 2856 | |
| 2857 | private: |
| 2858 | static uint32_t numPushed(MBasicBlock* block) { |
| 2859 | return block->stackDepth() - block->info().firstStackSlot(); |
| 2860 | } |
| 2861 | |
| 2862 | public: |
| 2863 | [[nodiscard]] bool pushDefs(const DefVector& defs) { |
| 2864 | if (inDeadCode()) { |
| 2865 | return true; |
| 2866 | } |
| 2867 | MOZ_ASSERT(numPushed(curBlock_) == 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(numPushed(curBlock_) == 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(numPushed(curBlock_) == 0))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("numPushed(curBlock_) == 0" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2867); AnnotateMozCrashReason("MOZ_ASSERT" "(" "numPushed(curBlock_) == 0" ")"); do { *((volatile int*)__null) = 2867; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2868 | if (!curBlock_->ensureHasSlots(defs.length())) { |
| 2869 | return false; |
| 2870 | } |
| 2871 | for (MDefinition* def : defs) { |
| 2872 | MOZ_ASSERT(def->type() != MIRType::None)do { static_assert( mozilla::detail::AssertionConditionType< decltype(def->type() != MIRType::None)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(def->type() != MIRType::None ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "def->type() != MIRType::None", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2872); AnnotateMozCrashReason("MOZ_ASSERT" "(" "def->type() != MIRType::None" ")"); do { *((volatile int*)__null) = 2872; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2873 | curBlock_->push(def); |
| 2874 | } |
| 2875 | return true; |
| 2876 | } |
| 2877 | |
| 2878 | [[nodiscard]] bool popPushedDefs(DefVector* defs) { |
| 2879 | size_t n = numPushed(curBlock_); |
| 2880 | if (!defs->resizeUninitialized(n)) { |
| 2881 | return false; |
| 2882 | } |
| 2883 | for (; n > 0; n--) { |
| 2884 | MDefinition* def = curBlock_->pop(); |
| 2885 | MOZ_ASSERT(def->type() != MIRType::Value)do { static_assert( mozilla::detail::AssertionConditionType< decltype(def->type() != MIRType::Value)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(def->type() != MIRType::Value ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "def->type() != MIRType::Value", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2885); AnnotateMozCrashReason("MOZ_ASSERT" "(" "def->type() != MIRType::Value" ")"); do { *((volatile int*)__null) = 2885; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2886 | (*defs)[n - 1] = def; |
| 2887 | } |
| 2888 | return true; |
| 2889 | } |
| 2890 | |
| 2891 | private: |
| 2892 | [[nodiscard]] bool addJoinPredecessor(const DefVector& defs, |
| 2893 | MBasicBlock** joinPred) { |
| 2894 | *joinPred = curBlock_; |
| 2895 | if (inDeadCode()) { |
| 2896 | return true; |
| 2897 | } |
| 2898 | return pushDefs(defs); |
| 2899 | } |
| 2900 | |
| 2901 | public: |
| 2902 | [[nodiscard]] bool branchAndStartThen(MDefinition* cond, |
| 2903 | MBasicBlock** elseBlock) { |
| 2904 | if (inDeadCode()) { |
| 2905 | *elseBlock = nullptr; |
| 2906 | } else { |
| 2907 | MBasicBlock* thenBlock; |
| 2908 | if (!newBlock(curBlock_, &thenBlock)) { |
| 2909 | return false; |
| 2910 | } |
| 2911 | if (!newBlock(curBlock_, elseBlock)) { |
| 2912 | return false; |
| 2913 | } |
| 2914 | |
| 2915 | curBlock_->end(MTest::New(alloc(), cond, thenBlock, *elseBlock)); |
| 2916 | |
| 2917 | curBlock_ = thenBlock; |
| 2918 | mirGraph().moveBlockToEnd(curBlock_); |
| 2919 | } |
| 2920 | |
| 2921 | return startBlock(); |
| 2922 | } |
| 2923 | |
| 2924 | [[nodiscard]] bool switchToElse(MBasicBlock* elseBlock, |
| 2925 | MBasicBlock** thenJoinPred) { |
| 2926 | DefVector values; |
| 2927 | if (!finishBlock(&values)) { |
| 2928 | return false; |
| 2929 | } |
| 2930 | |
| 2931 | if (!elseBlock) { |
| 2932 | *thenJoinPred = nullptr; |
| 2933 | } else { |
| 2934 | if (!addJoinPredecessor(values, thenJoinPred)) { |
| 2935 | return false; |
| 2936 | } |
| 2937 | |
| 2938 | curBlock_ = elseBlock; |
| 2939 | mirGraph().moveBlockToEnd(curBlock_); |
| 2940 | } |
| 2941 | |
| 2942 | return startBlock(); |
| 2943 | } |
| 2944 | |
| 2945 | [[nodiscard]] bool joinIfElse(MBasicBlock* thenJoinPred, DefVector* defs) { |
| 2946 | DefVector values; |
| 2947 | if (!finishBlock(&values)) { |
| 2948 | return false; |
| 2949 | } |
| 2950 | |
| 2951 | if (!thenJoinPred && inDeadCode()) { |
| 2952 | return true; |
| 2953 | } |
| 2954 | |
| 2955 | MBasicBlock* elseJoinPred; |
| 2956 | if (!addJoinPredecessor(values, &elseJoinPred)) { |
| 2957 | return false; |
| 2958 | } |
| 2959 | |
| 2960 | mozilla::Array<MBasicBlock*, 2> blocks; |
| 2961 | size_t numJoinPreds = 0; |
| 2962 | if (thenJoinPred) { |
| 2963 | blocks[numJoinPreds++] = thenJoinPred; |
| 2964 | } |
| 2965 | if (elseJoinPred) { |
| 2966 | blocks[numJoinPreds++] = elseJoinPred; |
| 2967 | } |
| 2968 | |
| 2969 | if (numJoinPreds == 0) { |
| 2970 | return true; |
| 2971 | } |
| 2972 | |
| 2973 | MBasicBlock* join; |
| 2974 | if (!goToNewBlock(blocks[0], &join)) { |
| 2975 | return false; |
| 2976 | } |
| 2977 | for (size_t i = 1; i < numJoinPreds; ++i) { |
| 2978 | if (!goToExistingBlock(blocks[i], join)) { |
| 2979 | return false; |
| 2980 | } |
| 2981 | } |
| 2982 | |
| 2983 | curBlock_ = join; |
| 2984 | return popPushedDefs(defs); |
| 2985 | } |
| 2986 | |
| 2987 | [[nodiscard]] bool startBlock() { |
| 2988 | MOZ_ASSERT_IF(blockDepth_ < pendingBlocks_.length(),do { if (blockDepth_ < pendingBlocks_.length()) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(pendingBlocks_ [blockDepth_].patches.empty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pendingBlocks_[blockDepth_]. patches.empty()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("pendingBlocks_[blockDepth_].patches.empty()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2989); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pendingBlocks_[blockDepth_].patches.empty()" ")"); do { *((volatile int*)__null) = 2989; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 2989 | pendingBlocks_[blockDepth_].patches.empty())do { if (blockDepth_ < pendingBlocks_.length()) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(pendingBlocks_ [blockDepth_].patches.empty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pendingBlocks_[blockDepth_]. patches.empty()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("pendingBlocks_[blockDepth_].patches.empty()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2989); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pendingBlocks_[blockDepth_].patches.empty()" ")"); do { *((volatile int*)__null) = 2989; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 2990 | blockDepth_++; |
| 2991 | return true; |
| 2992 | } |
| 2993 | |
| 2994 | [[nodiscard]] bool finishBlock(DefVector* defs) { |
| 2995 | MOZ_ASSERT(blockDepth_)do { static_assert( mozilla::detail::AssertionConditionType< decltype(blockDepth_)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(blockDepth_))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("blockDepth_", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 2995); AnnotateMozCrashReason("MOZ_ASSERT" "(" "blockDepth_" ")"); do { *((volatile int*)__null) = 2995; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2996 | uint32_t topLabel = --blockDepth_; |
| 2997 | return bindBranches(topLabel, defs); |
| 2998 | } |
| 2999 | |
| 3000 | [[nodiscard]] bool startLoop(MBasicBlock** loopHeader, size_t paramCount) { |
| 3001 | *loopHeader = nullptr; |
| 3002 | |
| 3003 | blockDepth_++; |
| 3004 | loopDepth_++; |
| 3005 | |
| 3006 | if (inDeadCode()) { |
| 3007 | return true; |
| 3008 | } |
| 3009 | |
| 3010 | // Create the loop header. |
| 3011 | MOZ_ASSERT(curBlock_->loopDepth() == loopDepth_ - 1)do { static_assert( mozilla::detail::AssertionConditionType< decltype(curBlock_->loopDepth() == loopDepth_ - 1)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(curBlock_->loopDepth() == loopDepth_ - 1))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("curBlock_->loopDepth() == loopDepth_ - 1" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3011); AnnotateMozCrashReason("MOZ_ASSERT" "(" "curBlock_->loopDepth() == loopDepth_ - 1" ")"); do { *((volatile int*)__null) = 3011; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3012 | *loopHeader = MBasicBlock::New(mirGraph(), info(), curBlock_, |
| 3013 | MBasicBlock::PENDING_LOOP_HEADER); |
| 3014 | if (!*loopHeader) { |
| 3015 | return false; |
| 3016 | } |
| 3017 | |
| 3018 | (*loopHeader)->setLoopDepth(loopDepth_); |
| 3019 | mirGraph().addBlock(*loopHeader); |
| 3020 | curBlock_->end(MGoto::New(alloc(), *loopHeader)); |
| 3021 | |
| 3022 | DefVector loopParams; |
| 3023 | if (!iter().getResults(paramCount, &loopParams)) { |
| 3024 | return false; |
| 3025 | } |
| 3026 | for (size_t i = 0; i < paramCount; i++) { |
| 3027 | MPhi* phi = MPhi::New(alloc(), loopParams[i]->type()); |
| 3028 | if (!phi) { |
| 3029 | return false; |
| 3030 | } |
| 3031 | if (!phi->reserveLength(2)) { |
| 3032 | return false; |
| 3033 | } |
| 3034 | (*loopHeader)->addPhi(phi); |
| 3035 | phi->addInput(loopParams[i]); |
| 3036 | loopParams[i] = phi; |
| 3037 | } |
| 3038 | iter().setResults(paramCount, loopParams); |
| 3039 | |
| 3040 | MBasicBlock* body; |
| 3041 | if (!goToNewBlock(*loopHeader, &body)) { |
| 3042 | return false; |
| 3043 | } |
| 3044 | curBlock_ = body; |
| 3045 | return true; |
| 3046 | } |
| 3047 | |
| 3048 | private: |
| 3049 | void fixupRedundantPhis(MBasicBlock* b) { |
| 3050 | for (size_t i = 0, depth = b->stackDepth(); i < depth; i++) { |
| 3051 | MDefinition* def = b->getSlot(i); |
| 3052 | if (def->isUnused()) { |
| 3053 | b->setSlot(i, def->toPhi()->getOperand(0)); |
| 3054 | } |
| 3055 | } |
| 3056 | } |
| 3057 | |
| 3058 | [[nodiscard]] bool setLoopBackedge(MBasicBlock* loopEntry, |
| 3059 | MBasicBlock* loopBody, |
| 3060 | MBasicBlock* backedge, size_t paramCount) { |
| 3061 | if (!loopEntry->setBackedgeWasm(backedge, paramCount)) { |
| 3062 | return false; |
| 3063 | } |
| 3064 | |
| 3065 | // Flag all redundant phis as unused. |
| 3066 | for (MPhiIterator phi = loopEntry->phisBegin(); phi != loopEntry->phisEnd(); |
| 3067 | phi++) { |
| 3068 | MOZ_ASSERT(phi->numOperands() == 2)do { static_assert( mozilla::detail::AssertionConditionType< decltype(phi->numOperands() == 2)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(phi->numOperands() == 2)) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("phi->numOperands() == 2" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3068); AnnotateMozCrashReason("MOZ_ASSERT" "(" "phi->numOperands() == 2" ")"); do { *((volatile int*)__null) = 3068; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3069 | if (phi->getOperand(0) == phi->getOperand(1)) { |
| 3070 | phi->setUnused(); |
| 3071 | } |
| 3072 | } |
| 3073 | |
| 3074 | // Fix up phis stored in the slots Vector of pending blocks. |
| 3075 | for (PendingBlockTarget& pendingBlockTarget : pendingBlocks_) { |
| 3076 | for (ControlFlowPatch& p : pendingBlockTarget.patches) { |
| 3077 | MBasicBlock* block = p.ins->block(); |
| 3078 | if (block->loopDepth() >= loopEntry->loopDepth()) { |
| 3079 | fixupRedundantPhis(block); |
| 3080 | } |
| 3081 | } |
| 3082 | } |
| 3083 | |
| 3084 | // The loop body, if any, might be referencing recycled phis too. |
| 3085 | if (loopBody) { |
| 3086 | fixupRedundantPhis(loopBody); |
| 3087 | } |
| 3088 | |
| 3089 | // Pending jumps to an enclosing try-catch may reference the recycled phis. |
| 3090 | // We have to search above all enclosing try blocks, as a delegate may move |
| 3091 | // patches around. |
| 3092 | for (uint32_t depth = 0; depth < iter().controlStackDepth(); depth++) { |
| 3093 | LabelKind kind = iter().controlKind(depth); |
| 3094 | if (kind != LabelKind::Try && kind != LabelKind::TryTable && |
| 3095 | kind != LabelKind::Body) { |
| 3096 | continue; |
| 3097 | } |
| 3098 | Control& control = iter().controlItem(depth); |
| 3099 | if (!control.tryControl) { |
| 3100 | continue; |
| 3101 | } |
| 3102 | for (MControlInstruction* patch : control.tryControl->landingPadPatches) { |
| 3103 | MBasicBlock* block = patch->block(); |
| 3104 | if (block->loopDepth() >= loopEntry->loopDepth()) { |
| 3105 | fixupRedundantPhis(block); |
| 3106 | } |
| 3107 | } |
| 3108 | } |
| 3109 | for (MControlInstruction* patch : bodyDelegatePadPatches_) { |
| 3110 | MBasicBlock* block = patch->block(); |
| 3111 | if (block->loopDepth() >= loopEntry->loopDepth()) { |
| 3112 | fixupRedundantPhis(block); |
| 3113 | } |
| 3114 | } |
| 3115 | |
| 3116 | // Discard redundant phis and add to the free list. |
| 3117 | for (MPhiIterator phi = loopEntry->phisBegin(); |
| 3118 | phi != loopEntry->phisEnd();) { |
| 3119 | MPhi* entryDef = *phi++; |
| 3120 | if (!entryDef->isUnused()) { |
| 3121 | continue; |
| 3122 | } |
| 3123 | |
| 3124 | entryDef->justReplaceAllUsesWith(entryDef->getOperand(0)); |
| 3125 | loopEntry->discardPhi(entryDef); |
| 3126 | mirGraph().addPhiToFreeList(entryDef); |
| 3127 | } |
| 3128 | |
| 3129 | return true; |
| 3130 | } |
| 3131 | |
| 3132 | public: |
| 3133 | [[nodiscard]] bool closeLoop(MBasicBlock* loopHeader, |
| 3134 | DefVector* loopResults) { |
| 3135 | MOZ_ASSERT(blockDepth_ >= 1)do { static_assert( mozilla::detail::AssertionConditionType< decltype(blockDepth_ >= 1)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(blockDepth_ >= 1))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("blockDepth_ >= 1" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3135); AnnotateMozCrashReason("MOZ_ASSERT" "(" "blockDepth_ >= 1" ")"); do { *((volatile int*)__null) = 3135; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3136 | MOZ_ASSERT(loopDepth_)do { static_assert( mozilla::detail::AssertionConditionType< decltype(loopDepth_)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(loopDepth_))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("loopDepth_", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3136); AnnotateMozCrashReason("MOZ_ASSERT" "(" "loopDepth_" ")"); do { *((volatile int*)__null) = 3136; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3137 | |
| 3138 | uint32_t headerLabel = blockDepth_ - 1; |
| 3139 | |
| 3140 | if (!loopHeader) { |
| 3141 | MOZ_ASSERT(inDeadCode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(inDeadCode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(inDeadCode()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("inDeadCode()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3141); AnnotateMozCrashReason("MOZ_ASSERT" "(" "inDeadCode()" ")"); do { *((volatile int*)__null) = 3141; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3142 | MOZ_ASSERT(headerLabel >= pendingBlocks_.length() ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(headerLabel >= pendingBlocks_.length() || pendingBlocks_ [headerLabel].patches.empty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(headerLabel >= pendingBlocks_ .length() || pendingBlocks_[headerLabel].patches.empty()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("headerLabel >= pendingBlocks_.length() || pendingBlocks_[headerLabel].patches.empty()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3143); AnnotateMozCrashReason("MOZ_ASSERT" "(" "headerLabel >= pendingBlocks_.length() || pendingBlocks_[headerLabel].patches.empty()" ")"); do { *((volatile int*)__null) = 3143; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 3143 | pendingBlocks_[headerLabel].patches.empty())do { static_assert( mozilla::detail::AssertionConditionType< decltype(headerLabel >= pendingBlocks_.length() || pendingBlocks_ [headerLabel].patches.empty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(headerLabel >= pendingBlocks_ .length() || pendingBlocks_[headerLabel].patches.empty()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("headerLabel >= pendingBlocks_.length() || pendingBlocks_[headerLabel].patches.empty()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3143); AnnotateMozCrashReason("MOZ_ASSERT" "(" "headerLabel >= pendingBlocks_.length() || pendingBlocks_[headerLabel].patches.empty()" ")"); do { *((volatile int*)__null) = 3143; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3144 | blockDepth_--; |
| 3145 | loopDepth_--; |
| 3146 | return true; |
| 3147 | } |
| 3148 | |
| 3149 | // Op::Loop doesn't have an implicit backedge so temporarily set |
| 3150 | // aside the end of the loop body to bind backedges. |
| 3151 | MBasicBlock* loopBody = curBlock_; |
| 3152 | curBlock_ = nullptr; |
| 3153 | |
| 3154 | // As explained in bug 1253544, Ion apparently has an invariant that |
| 3155 | // there is only one backedge to loop headers. To handle wasm's ability |
| 3156 | // to have multiple backedges to the same loop header, we bind all those |
| 3157 | // branches as forward jumps to a single backward jump. This is |
| 3158 | // unfortunate but the optimizer is able to fold these into single jumps |
| 3159 | // to backedges. |
| 3160 | DefVector backedgeValues; |
| 3161 | if (!bindBranches(headerLabel, &backedgeValues)) { |
| 3162 | return false; |
| 3163 | } |
| 3164 | |
| 3165 | MOZ_ASSERT(loopHeader->loopDepth() == loopDepth_)do { static_assert( mozilla::detail::AssertionConditionType< decltype(loopHeader->loopDepth() == loopDepth_)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(loopHeader->loopDepth() == loopDepth_))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("loopHeader->loopDepth() == loopDepth_" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3165); AnnotateMozCrashReason("MOZ_ASSERT" "(" "loopHeader->loopDepth() == loopDepth_" ")"); do { *((volatile int*)__null) = 3165; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3166 | |
| 3167 | if (curBlock_) { |
| 3168 | // We're on the loop backedge block, created by bindBranches. |
| 3169 | for (size_t i = 0, n = numPushed(curBlock_); i != n; i++) { |
| 3170 | curBlock_->pop(); |
| 3171 | } |
| 3172 | |
| 3173 | if (!pushDefs(backedgeValues)) { |
| 3174 | return false; |
| 3175 | } |
| 3176 | |
| 3177 | MOZ_ASSERT(curBlock_->loopDepth() == loopDepth_)do { static_assert( mozilla::detail::AssertionConditionType< decltype(curBlock_->loopDepth() == loopDepth_)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(curBlock_->loopDepth() == loopDepth_))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("curBlock_->loopDepth() == loopDepth_" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3177); AnnotateMozCrashReason("MOZ_ASSERT" "(" "curBlock_->loopDepth() == loopDepth_" ")"); do { *((volatile int*)__null) = 3177; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3178 | curBlock_->end(MGoto::New(alloc(), loopHeader)); |
| 3179 | if (!setLoopBackedge(loopHeader, loopBody, curBlock_, |
| 3180 | backedgeValues.length())) { |
| 3181 | return false; |
| 3182 | } |
| 3183 | } |
| 3184 | |
| 3185 | curBlock_ = loopBody; |
| 3186 | |
| 3187 | loopDepth_--; |
| 3188 | |
| 3189 | // If the loop depth still at the inner loop body, correct it. |
| 3190 | if (curBlock_ && curBlock_->loopDepth() != loopDepth_) { |
| 3191 | MBasicBlock* out; |
| 3192 | if (!goToNewBlock(curBlock_, &out)) { |
| 3193 | return false; |
| 3194 | } |
| 3195 | curBlock_ = out; |
| 3196 | } |
| 3197 | |
| 3198 | blockDepth_ -= 1; |
| 3199 | return inDeadCode() || popPushedDefs(loopResults); |
| 3200 | } |
| 3201 | |
| 3202 | [[nodiscard]] bool addControlFlowPatch( |
| 3203 | MControlInstruction* ins, uint32_t relative, uint32_t index, |
| 3204 | BranchHint branchHint = BranchHint::Invalid) { |
| 3205 | MOZ_ASSERT(relative < blockDepth_)do { static_assert( mozilla::detail::AssertionConditionType< decltype(relative < blockDepth_)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(relative < blockDepth_))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("relative < blockDepth_" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3205); AnnotateMozCrashReason("MOZ_ASSERT" "(" "relative < blockDepth_" ")"); do { *((volatile int*)__null) = 3205; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3206 | uint32_t absolute = blockDepth_ - 1 - relative; |
| 3207 | |
| 3208 | if (absolute >= pendingBlocks_.length() && |
| 3209 | !pendingBlocks_.resize(absolute + 1)) { |
| 3210 | return false; |
| 3211 | } |
| 3212 | |
| 3213 | pendingBlocks_[absolute].hint = branchHint; |
| 3214 | return pendingBlocks_[absolute].patches.append( |
| 3215 | ControlFlowPatch(ins, index)); |
| 3216 | } |
| 3217 | |
| 3218 | [[nodiscard]] bool br(uint32_t relativeDepth, const DefVector& values) { |
| 3219 | if (inDeadCode()) { |
| 3220 | return true; |
| 3221 | } |
| 3222 | |
| 3223 | MGoto* jump = MGoto::New(alloc()); |
| 3224 | if (!addControlFlowPatch(jump, relativeDepth, MGoto::TargetIndex)) { |
| 3225 | return false; |
| 3226 | } |
| 3227 | |
| 3228 | if (!pushDefs(values)) { |
| 3229 | return false; |
| 3230 | } |
| 3231 | |
| 3232 | curBlock_->end(jump); |
| 3233 | curBlock_ = nullptr; |
| 3234 | return true; |
| 3235 | } |
| 3236 | |
| 3237 | [[nodiscard]] bool brIf(uint32_t relativeDepth, const DefVector& values, |
| 3238 | MDefinition* condition, BranchHint branchHint) { |
| 3239 | if (inDeadCode()) { |
| 3240 | return true; |
| 3241 | } |
| 3242 | |
| 3243 | MBasicBlock* joinBlock = nullptr; |
| 3244 | if (!newBlock(curBlock_, &joinBlock)) { |
| 3245 | return false; |
| 3246 | } |
| 3247 | |
| 3248 | MTest* test = MTest::New(alloc(), condition, nullptr, joinBlock); |
| 3249 | if (!addControlFlowPatch(test, relativeDepth, MTest::TrueBranchIndex, |
| 3250 | branchHint)) { |
| 3251 | return false; |
| 3252 | } |
| 3253 | |
| 3254 | if (!pushDefs(values)) { |
| 3255 | return false; |
| 3256 | } |
| 3257 | |
| 3258 | curBlock_->end(test); |
| 3259 | curBlock_ = joinBlock; |
| 3260 | |
| 3261 | return true; |
| 3262 | } |
| 3263 | |
| 3264 | [[nodiscard]] bool brTable(MDefinition* operand, uint32_t defaultDepth, |
| 3265 | const Uint32Vector& depths, |
| 3266 | const DefVector& values) { |
| 3267 | if (inDeadCode()) { |
| 3268 | return true; |
| 3269 | } |
| 3270 | |
| 3271 | size_t numCases = depths.length(); |
| 3272 | MOZ_ASSERT(numCases <= INT32_MAX)do { static_assert( mozilla::detail::AssertionConditionType< decltype(numCases <= (2147483647))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(numCases <= (2147483647)) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("numCases <= (2147483647)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3272); AnnotateMozCrashReason("MOZ_ASSERT" "(" "numCases <= (2147483647)" ")"); do { *((volatile int*)__null) = 3272; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3273 | MOZ_ASSERT(numCases)do { static_assert( mozilla::detail::AssertionConditionType< decltype(numCases)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(numCases))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("numCases", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3273); AnnotateMozCrashReason("MOZ_ASSERT" "(" "numCases" ")" ); do { *((volatile int*)__null) = 3273; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3274 | |
| 3275 | MTableSwitch* table = |
| 3276 | MTableSwitch::New(alloc(), operand, 0, int32_t(numCases - 1)); |
| 3277 | |
| 3278 | size_t defaultIndex; |
| 3279 | if (!table->addDefault(nullptr, &defaultIndex)) { |
| 3280 | return false; |
| 3281 | } |
| 3282 | if (!addControlFlowPatch(table, defaultDepth, defaultIndex)) { |
| 3283 | return false; |
| 3284 | } |
| 3285 | |
| 3286 | using IndexToCaseMap = |
| 3287 | HashMap<uint32_t, uint32_t, DefaultHasher<uint32_t>, SystemAllocPolicy>; |
| 3288 | |
| 3289 | IndexToCaseMap indexToCase; |
| 3290 | if (!indexToCase.put(defaultDepth, defaultIndex)) { |
| 3291 | return false; |
| 3292 | } |
| 3293 | |
| 3294 | for (size_t i = 0; i < numCases; i++) { |
| 3295 | if (!mirGen_.ensureBallast()) { |
| 3296 | return false; |
| 3297 | } |
| 3298 | |
| 3299 | uint32_t depth = depths[i]; |
| 3300 | |
| 3301 | size_t caseIndex; |
| 3302 | IndexToCaseMap::AddPtr p = indexToCase.lookupForAdd(depth); |
| 3303 | if (!p) { |
| 3304 | if (!table->addSuccessor(nullptr, &caseIndex)) { |
| 3305 | return false; |
| 3306 | } |
| 3307 | if (!addControlFlowPatch(table, depth, caseIndex)) { |
| 3308 | return false; |
| 3309 | } |
| 3310 | if (!indexToCase.add(p, depth, caseIndex)) { |
| 3311 | return false; |
| 3312 | } |
| 3313 | } else { |
| 3314 | caseIndex = p->value(); |
| 3315 | } |
| 3316 | |
| 3317 | if (!table->addCase(caseIndex)) { |
| 3318 | return false; |
| 3319 | } |
| 3320 | } |
| 3321 | |
| 3322 | if (!pushDefs(values)) { |
| 3323 | return false; |
| 3324 | } |
| 3325 | |
| 3326 | curBlock_->end(table); |
| 3327 | curBlock_ = nullptr; |
| 3328 | |
| 3329 | return true; |
| 3330 | } |
| 3331 | |
| 3332 | /********************************************************** Exceptions ***/ |
| 3333 | |
| 3334 | bool inTryBlockFrom(uint32_t fromRelativeDepth, uint32_t* relativeDepth) { |
| 3335 | return iter().controlFindInnermostFrom( |
| 3336 | [](LabelKind kind, const Control& control) { |
| 3337 | return control.tryControl != nullptr && control.tryControl->inBody; |
| 3338 | }, |
| 3339 | fromRelativeDepth, relativeDepth); |
| 3340 | } |
| 3341 | |
| 3342 | bool inTryBlock(uint32_t* relativeDepth) { |
| 3343 | return inTryBlockFrom(0, relativeDepth); |
| 3344 | } |
| 3345 | |
| 3346 | bool inTryCode() { |
| 3347 | uint32_t relativeDepth; |
| 3348 | return inTryBlock(&relativeDepth); |
| 3349 | } |
| 3350 | |
| 3351 | MDefinition* loadTag(uint32_t tagIndex) { |
| 3352 | MWasmLoadInstanceDataField* tag = MWasmLoadInstanceDataField::New( |
| 3353 | alloc(), MIRType::WasmAnyRef, |
| 3354 | codeMeta_.offsetOfTagInstanceData(tagIndex), true, instancePointer_); |
| 3355 | curBlock_->add(tag); |
| 3356 | return tag; |
| 3357 | } |
| 3358 | |
| 3359 | void loadPendingExceptionState(MInstruction** exception, MInstruction** tag) { |
| 3360 | *exception = MWasmLoadInstance::New( |
| 3361 | alloc(), instancePointer_, wasm::Instance::offsetOfPendingException(), |
| 3362 | MIRType::WasmAnyRef, AliasSet::Load(AliasSet::WasmPendingException)); |
| 3363 | curBlock_->add(*exception); |
| 3364 | |
| 3365 | *tag = MWasmLoadInstance::New( |
| 3366 | alloc(), instancePointer_, |
| 3367 | wasm::Instance::offsetOfPendingExceptionTag(), MIRType::WasmAnyRef, |
| 3368 | AliasSet::Load(AliasSet::WasmPendingException)); |
| 3369 | curBlock_->add(*tag); |
| 3370 | } |
| 3371 | |
| 3372 | [[nodiscard]] bool setPendingExceptionState(MDefinition* exception, |
| 3373 | MDefinition* tag) { |
| 3374 | // Set the pending exception object |
| 3375 | auto* exceptionAddr = MWasmDerivedPointer::New( |
| 3376 | alloc(), instancePointer_, Instance::offsetOfPendingException()); |
| 3377 | curBlock_->add(exceptionAddr); |
| 3378 | auto* setException = MWasmStoreRef::New( |
| 3379 | alloc(), instancePointer_, exceptionAddr, /*valueOffset=*/0, exception, |
| 3380 | AliasSet::WasmPendingException, WasmPreBarrierKind::Normal); |
| 3381 | curBlock_->add(setException); |
| 3382 | if (!postBarrierPrecise(/*lineOrBytecode=*/0, exceptionAddr, exception)) { |
| 3383 | return false; |
| 3384 | } |
| 3385 | |
| 3386 | // Set the pending exception tag object |
| 3387 | auto* exceptionTagAddr = MWasmDerivedPointer::New( |
| 3388 | alloc(), instancePointer_, Instance::offsetOfPendingExceptionTag()); |
| 3389 | curBlock_->add(exceptionTagAddr); |
| 3390 | auto* setExceptionTag = MWasmStoreRef::New( |
| 3391 | alloc(), instancePointer_, exceptionTagAddr, /*valueOffset=*/0, tag, |
| 3392 | AliasSet::WasmPendingException, WasmPreBarrierKind::Normal); |
| 3393 | curBlock_->add(setExceptionTag); |
| 3394 | return postBarrierPrecise(/*lineOrBytecode=*/0, exceptionTagAddr, tag); |
| 3395 | } |
| 3396 | |
| 3397 | [[nodiscard]] bool addPadPatch(MControlInstruction* ins, |
| 3398 | size_t relativeTryDepth) { |
| 3399 | Control& control = iter().controlItem(relativeTryDepth); |
| 3400 | return control.tryControl->landingPadPatches.emplaceBack(ins); |
| 3401 | } |
| 3402 | |
| 3403 | [[nodiscard]] bool endWithPadPatch(uint32_t relativeTryDepth) { |
| 3404 | MGoto* jumpToLandingPad = MGoto::New(alloc()); |
| 3405 | curBlock_->end(jumpToLandingPad); |
| 3406 | return addPadPatch(jumpToLandingPad, relativeTryDepth); |
| 3407 | } |
| 3408 | |
| 3409 | [[nodiscard]] bool delegatePadPatches(const ControlInstructionVector& patches, |
| 3410 | uint32_t relativeDepth) { |
| 3411 | if (patches.empty()) { |
| 3412 | return true; |
| 3413 | } |
| 3414 | |
| 3415 | // Find where we are delegating the pad patches to. |
| 3416 | ControlInstructionVector* targetPatches; |
| 3417 | uint32_t targetRelativeDepth; |
| 3418 | if (inTryBlockFrom(relativeDepth, &targetRelativeDepth)) { |
| 3419 | targetPatches = &iter() |
| 3420 | .controlItem(targetRelativeDepth) |
| 3421 | .tryControl->landingPadPatches; |
| 3422 | } else { |
| 3423 | MOZ_ASSERT(relativeDepth <= blockDepth_ - 1)do { static_assert( mozilla::detail::AssertionConditionType< decltype(relativeDepth <= blockDepth_ - 1)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(relativeDepth <= blockDepth_ - 1))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("relativeDepth <= blockDepth_ - 1", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3423); AnnotateMozCrashReason("MOZ_ASSERT" "(" "relativeDepth <= blockDepth_ - 1" ")"); do { *((volatile int*)__null) = 3423; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3424 | targetPatches = &bodyDelegatePadPatches_; |
| 3425 | } |
| 3426 | |
| 3427 | // Append the delegate's pad patches to the target's. |
| 3428 | for (MControlInstruction* ins : patches) { |
| 3429 | if (!targetPatches->emplaceBack(ins)) { |
| 3430 | return false; |
| 3431 | } |
| 3432 | } |
| 3433 | return true; |
| 3434 | } |
| 3435 | |
| 3436 | [[nodiscard]] bool beginTryCall(MWasmCallTryDesc* call) { |
| 3437 | call->inTry = inTryBlock(&call->relativeTryDepth); |
| 3438 | if (!call->inTry) { |
| 3439 | return true; |
| 3440 | } |
| 3441 | // Allocate a try note |
| 3442 | if (!tryNotes_.append(wasm::TryNote())) { |
| 3443 | return false; |
| 3444 | } |
| 3445 | call->tryNoteIndex = tryNotes_.length() - 1; |
| 3446 | // Allocate blocks for fallthrough and exceptions |
| 3447 | return newBlock(curBlock_, &call->fallthroughBlock) && |
| 3448 | newBlock(curBlock_, &call->prePadBlock); |
| 3449 | } |
| 3450 | |
| 3451 | [[nodiscard]] bool finishTryCall(MWasmCallTryDesc* call) { |
| 3452 | if (!call->inTry) { |
| 3453 | return true; |
| 3454 | } |
| 3455 | |
| 3456 | // Switch to the prePadBlock |
| 3457 | MBasicBlock* callBlock = curBlock_; |
| 3458 | curBlock_ = call->prePadBlock; |
| 3459 | |
| 3460 | // Mark this as the landing pad for the call |
| 3461 | curBlock_->add( |
| 3462 | MWasmCallLandingPrePad::New(alloc(), callBlock, call->tryNoteIndex)); |
| 3463 | |
| 3464 | // End with a pending jump to the landing pad |
| 3465 | if (!endWithPadPatch(call->relativeTryDepth)) { |
| 3466 | return false; |
| 3467 | } |
| 3468 | |
| 3469 | // Compilation continues in the fallthroughBlock. |
| 3470 | curBlock_ = call->fallthroughBlock; |
| 3471 | return true; |
| 3472 | } |
| 3473 | |
| 3474 | // Create a landing pad for a try block if there are any throwing |
| 3475 | // instructions. This is also used for the implicit rethrow landing pad used |
| 3476 | // for delegate instructions that target the outermost label. |
| 3477 | [[nodiscard]] bool createTryLandingPadIfNeeded( |
| 3478 | ControlInstructionVector& landingPadPatches, MBasicBlock** landingPad) { |
| 3479 | // If there are no pad-patches for this try control, it means there are no |
| 3480 | // instructions in the try code that could throw an exception. In this |
| 3481 | // case, all the catches are dead code, and the try code ends up equivalent |
| 3482 | // to a plain wasm block. |
| 3483 | if (landingPadPatches.empty()) { |
| 3484 | *landingPad = nullptr; |
| 3485 | return true; |
| 3486 | } |
| 3487 | |
| 3488 | // Otherwise, if there are (pad-) branches from places in the try code that |
| 3489 | // may throw an exception, bind these branches to a new landing pad |
| 3490 | // block. This is done similarly to what is done in bindBranches. |
| 3491 | MControlInstruction* ins = landingPadPatches[0]; |
| 3492 | MBasicBlock* pred = ins->block(); |
| 3493 | if (!newBlock(pred, landingPad)) { |
| 3494 | return false; |
| 3495 | } |
| 3496 | ins->replaceSuccessor(0, *landingPad); |
| 3497 | for (size_t i = 1; i < landingPadPatches.length(); i++) { |
| 3498 | ins = landingPadPatches[i]; |
| 3499 | pred = ins->block(); |
| 3500 | if (!(*landingPad)->addPredecessor(alloc(), pred)) { |
| 3501 | return false; |
| 3502 | } |
| 3503 | ins->replaceSuccessor(0, *landingPad); |
| 3504 | } |
| 3505 | |
| 3506 | // Set up the slots in the landing pad block. |
| 3507 | if (!setupLandingPadSlots(landingPad)) { |
| 3508 | return false; |
| 3509 | } |
| 3510 | |
| 3511 | // Clear the now bound pad patches. |
| 3512 | landingPadPatches.clear(); |
| 3513 | return true; |
| 3514 | } |
| 3515 | |
| 3516 | [[nodiscard]] bool createTryTableLandingPad(TryControl* tryControl) { |
| 3517 | MBasicBlock* landingPad; |
| 3518 | if (!createTryLandingPadIfNeeded(tryControl->landingPadPatches, |
| 3519 | &landingPad)) { |
| 3520 | return false; |
| 3521 | } |
| 3522 | |
| 3523 | // If there is no landing pad created, no exceptions were possibly thrown |
| 3524 | // and we don't need to do anything here. |
| 3525 | if (!landingPad) { |
| 3526 | return true; |
| 3527 | } |
| 3528 | |
| 3529 | MBasicBlock* originalBlock = curBlock_; |
| 3530 | curBlock_ = landingPad; |
| 3531 | |
| 3532 | bool hadCatchAll = false; |
| 3533 | for (const TryTableCatch& tryTableCatch : tryControl->catches) { |
| 3534 | MOZ_ASSERT(numPushed(curBlock_) == 2)do { static_assert( mozilla::detail::AssertionConditionType< decltype(numPushed(curBlock_) == 2)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(numPushed(curBlock_) == 2))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("numPushed(curBlock_) == 2" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3534); AnnotateMozCrashReason("MOZ_ASSERT" "(" "numPushed(curBlock_) == 2" ")"); do { *((volatile int*)__null) = 3534; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3535 | |
| 3536 | // Handle a catch_all by jumping to the target block |
| 3537 | if (tryTableCatch.tagIndex == CatchAllIndex) { |
| 3538 | // Get the exception from the slots we pushed when adding |
| 3539 | // control flow patches. |
| 3540 | curBlock_->pop(); |
| 3541 | MDefinition* exception = curBlock_->pop(); |
| 3542 | |
| 3543 | // Capture the exnref value if we need to |
| 3544 | DefVector values; |
| 3545 | if (tryTableCatch.captureExnRef && !values.append(exception)) { |
| 3546 | return false; |
| 3547 | } |
| 3548 | |
| 3549 | // Branch to the catch_all code |
| 3550 | if (!br(tryTableCatch.labelRelativeDepth, values)) { |
| 3551 | return false; |
| 3552 | } |
| 3553 | |
| 3554 | // Break from the loop and skip the implicit rethrow that's needed |
| 3555 | // if we didn't have a catch_all |
| 3556 | hadCatchAll = true; |
| 3557 | break; |
| 3558 | } |
| 3559 | |
| 3560 | // Handle a tagged catch by doing a compare and branch on the tag index, |
| 3561 | // jumping to a catch block if they match, or else to a fallthrough block |
| 3562 | // to continue the landing pad. |
| 3563 | MBasicBlock* catchBlock = nullptr; |
| 3564 | MBasicBlock* fallthroughBlock = nullptr; |
| 3565 | if (!newBlock(curBlock_, &catchBlock) || |
| 3566 | !newBlock(curBlock_, &fallthroughBlock)) { |
| 3567 | return false; |
| 3568 | } |
| 3569 | |
| 3570 | // Get the exception and its tag from the slots we pushed when adding |
| 3571 | // control flow patches. |
| 3572 | MDefinition* exceptionTag = curBlock_->pop(); |
| 3573 | curBlock_->pop(); |
| 3574 | |
| 3575 | // Branch to the catch block if the exception's tag matches this catch |
| 3576 | // block's tag. |
| 3577 | MDefinition* catchTag = loadTag(tryTableCatch.tagIndex); |
| 3578 | MDefinition* matchesCatchTag = compare(exceptionTag, catchTag, JSOp::Eq, |
| 3579 | MCompare::Compare_WasmAnyRef); |
| 3580 | curBlock_->end( |
| 3581 | MTest::New(alloc(), matchesCatchTag, catchBlock, fallthroughBlock)); |
| 3582 | |
| 3583 | // Set up the catch block by extracting the values from the exception |
| 3584 | // object. |
| 3585 | curBlock_ = catchBlock; |
| 3586 | |
| 3587 | // Remove the tag and exception slots from the block, they are no |
| 3588 | // longer necessary. |
| 3589 | curBlock_->pop(); |
| 3590 | MDefinition* exception = curBlock_->pop(); |
| 3591 | MOZ_ASSERT(numPushed(curBlock_) == 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(numPushed(curBlock_) == 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(numPushed(curBlock_) == 0))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("numPushed(curBlock_) == 0" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3591); AnnotateMozCrashReason("MOZ_ASSERT" "(" "numPushed(curBlock_) == 0" ")"); do { *((volatile int*)__null) = 3591; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3592 | |
| 3593 | // Extract the exception values for the catch block |
| 3594 | DefVector values; |
| 3595 | if (!loadExceptionValues(exception, tryTableCatch.tagIndex, &values)) { |
| 3596 | return false; |
| 3597 | } |
| 3598 | if (tryTableCatch.captureExnRef && !values.append(exception)) { |
| 3599 | return false; |
| 3600 | } |
| 3601 | |
| 3602 | if (!br(tryTableCatch.labelRelativeDepth, values)) { |
| 3603 | return false; |
| 3604 | } |
| 3605 | |
| 3606 | curBlock_ = fallthroughBlock; |
| 3607 | } |
| 3608 | |
| 3609 | // If there was no catch_all, we must rethrow this exception. |
| 3610 | if (!hadCatchAll) { |
| 3611 | MOZ_ASSERT(numPushed(curBlock_) == 2)do { static_assert( mozilla::detail::AssertionConditionType< decltype(numPushed(curBlock_) == 2)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(numPushed(curBlock_) == 2))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("numPushed(curBlock_) == 2" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3611); AnnotateMozCrashReason("MOZ_ASSERT" "(" "numPushed(curBlock_) == 2" ")"); do { *((volatile int*)__null) = 3611; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3612 | MDefinition* tag = curBlock_->pop(); |
| 3613 | MDefinition* exception = curBlock_->pop(); |
| 3614 | MOZ_ASSERT(numPushed(curBlock_) == 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(numPushed(curBlock_) == 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(numPushed(curBlock_) == 0))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("numPushed(curBlock_) == 0" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3614); AnnotateMozCrashReason("MOZ_ASSERT" "(" "numPushed(curBlock_) == 0" ")"); do { *((volatile int*)__null) = 3614; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3615 | |
| 3616 | if (!throwFrom(exception, tag)) { |
| 3617 | return false; |
| 3618 | } |
| 3619 | } |
| 3620 | |
| 3621 | curBlock_ = originalBlock; |
| 3622 | return true; |
| 3623 | } |
| 3624 | |
| 3625 | // Consume the pending exception state from instance, and set up the slots |
| 3626 | // of the landing pad with the exception state. |
| 3627 | [[nodiscard]] bool setupLandingPadSlots(MBasicBlock** landingPad) { |
| 3628 | MBasicBlock* prevBlock = curBlock_; |
| 3629 | curBlock_ = *landingPad; |
| 3630 | |
| 3631 | // Load the pending exception and tag |
| 3632 | MInstruction* exception; |
| 3633 | MInstruction* tag; |
| 3634 | loadPendingExceptionState(&exception, &tag); |
| 3635 | |
| 3636 | // Clear the pending exception and tag |
| 3637 | auto* null = constantNullRef(); |
| 3638 | if (!setPendingExceptionState(null, null)) { |
| 3639 | return false; |
| 3640 | } |
| 3641 | |
| 3642 | // Push the exception and its tag on the stack to make them available |
| 3643 | // to the landing pad blocks. |
| 3644 | if (!curBlock_->ensureHasSlots(2)) { |
| 3645 | return false; |
| 3646 | } |
| 3647 | curBlock_->push(exception); |
| 3648 | curBlock_->push(tag); |
| 3649 | *landingPad = curBlock_; |
| 3650 | |
| 3651 | curBlock_ = prevBlock; |
| 3652 | return true; |
| 3653 | } |
| 3654 | |
| 3655 | [[nodiscard]] bool startTry() { |
| 3656 | Control& control = iter().controlItem(); |
| 3657 | control.block = curBlock_; |
| 3658 | control.tryControl = newTryControl(); |
| 3659 | if (!control.tryControl) { |
| 3660 | return false; |
| 3661 | } |
| 3662 | control.tryControl->inBody = true; |
| 3663 | return startBlock(); |
| 3664 | } |
| 3665 | |
| 3666 | [[nodiscard]] bool startTryTable(TryTableCatchVector&& catches) { |
| 3667 | Control& control = iter().controlItem(); |
| 3668 | control.block = curBlock_; |
| 3669 | control.tryControl = newTryControl(); |
| 3670 | if (!control.tryControl) { |
| 3671 | return false; |
| 3672 | } |
| 3673 | control.tryControl->inBody = true; |
| 3674 | control.tryControl->catches = std::move(catches); |
| 3675 | return startBlock(); |
| 3676 | } |
| 3677 | |
| 3678 | [[nodiscard]] bool joinTryOrCatchBlock(Control& control) { |
| 3679 | // If the try or catch block ended with dead code, there is no need to |
| 3680 | // do any control flow join. |
| 3681 | if (inDeadCode()) { |
| 3682 | return true; |
| 3683 | } |
| 3684 | |
| 3685 | // This is a split path which we'll need to join later, using a control |
| 3686 | // flow patch. |
| 3687 | MOZ_ASSERT(!curBlock_->hasLastIns())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!curBlock_->hasLastIns())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!curBlock_->hasLastIns()) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!curBlock_->hasLastIns()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3687); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!curBlock_->hasLastIns()" ")"); do { *((volatile int*)__null) = 3687; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3688 | MGoto* jump = MGoto::New(alloc()); |
| 3689 | if (!addControlFlowPatch(jump, 0, MGoto::TargetIndex)) { |
| 3690 | return false; |
| 3691 | } |
| 3692 | |
| 3693 | // Finish the current block with the control flow patch instruction. |
| 3694 | curBlock_->end(jump); |
| 3695 | return true; |
| 3696 | } |
| 3697 | |
| 3698 | // Finish the previous block (either a try or catch block) and then setup a |
| 3699 | // new catch block. |
| 3700 | [[nodiscard]] bool switchToCatch(Control& control, LabelKind fromKind, |
| 3701 | uint32_t tagIndex) { |
| 3702 | // Mark this control node as being no longer in the body of the try |
| 3703 | control.tryControl->inBody = false; |
| 3704 | |
| 3705 | // If there is no control block, then either: |
| 3706 | // - the entry of the try block is dead code, or |
| 3707 | // - there is no landing pad for the try-catch. |
| 3708 | // In either case, any catch will be dead code. |
| 3709 | if (!control.block) { |
| 3710 | MOZ_ASSERT(inDeadCode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(inDeadCode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(inDeadCode()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("inDeadCode()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3710); AnnotateMozCrashReason("MOZ_ASSERT" "(" "inDeadCode()" ")"); do { *((volatile int*)__null) = 3710; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3711 | return true; |
| 3712 | } |
| 3713 | |
| 3714 | // Join the previous try or catch block with a patch to the future join of |
| 3715 | // the whole try-catch block. |
| 3716 | if (!joinTryOrCatchBlock(control)) { |
| 3717 | return false; |
| 3718 | } |
| 3719 | |
| 3720 | // If we are switching from the try block, create the landing pad. This is |
| 3721 | // guaranteed to happen once and only once before processing catch blocks. |
| 3722 | if (fromKind == LabelKind::Try) { |
| 3723 | MBasicBlock* padBlock = nullptr; |
| 3724 | if (!createTryLandingPadIfNeeded(control.tryControl->landingPadPatches, |
| 3725 | &padBlock)) { |
| 3726 | return false; |
| 3727 | } |
| 3728 | // Set the control block for this try-catch to the landing pad. |
| 3729 | control.block = padBlock; |
| 3730 | } |
| 3731 | |
| 3732 | // If there is no landing pad, then this and following catches are dead |
| 3733 | // code. |
| 3734 | if (!control.block) { |
| 3735 | curBlock_ = nullptr; |
| 3736 | return true; |
| 3737 | } |
| 3738 | |
| 3739 | // Switch to the landing pad. |
| 3740 | curBlock_ = control.block; |
| 3741 | |
| 3742 | // Handle a catch_all by immediately jumping to a new block. We require a |
| 3743 | // new block (as opposed to just emitting the catch_all code in the current |
| 3744 | // block) because rethrow requires the exception/tag to be present in the |
| 3745 | // landing pad's slots, while the catch_all block must not have the |
| 3746 | // exception/tag in slots. |
| 3747 | if (tagIndex == CatchAllIndex) { |
| 3748 | MBasicBlock* catchAllBlock = nullptr; |
| 3749 | if (!goToNewBlock(curBlock_, &catchAllBlock)) { |
| 3750 | return false; |
| 3751 | } |
| 3752 | // Compilation will continue in the catch_all block. |
| 3753 | curBlock_ = catchAllBlock; |
| 3754 | // Remove the tag and exception slots from the block, they are no |
| 3755 | // longer necessary. |
| 3756 | curBlock_->pop(); |
| 3757 | curBlock_->pop(); |
| 3758 | return true; |
| 3759 | } |
| 3760 | |
| 3761 | // Handle a tagged catch by doing a compare and branch on the tag index, |
| 3762 | // jumping to a catch block if they match, or else to a fallthrough block |
| 3763 | // to continue the landing pad. |
| 3764 | MBasicBlock* catchBlock = nullptr; |
| 3765 | MBasicBlock* fallthroughBlock = nullptr; |
| 3766 | if (!newBlock(curBlock_, &catchBlock) || |
| 3767 | !newBlock(curBlock_, &fallthroughBlock)) { |
| 3768 | return false; |
| 3769 | } |
| 3770 | |
| 3771 | // Get the exception and its tag from the slots we pushed when adding |
| 3772 | // control flow patches. |
| 3773 | MDefinition* exceptionTag = curBlock_->pop(); |
| 3774 | MDefinition* exception = curBlock_->pop(); |
Value stored to 'exception' during its initialization is never read | |
| 3775 | |
| 3776 | // Branch to the catch block if the exception's tag matches this catch |
| 3777 | // block's tag. |
| 3778 | MDefinition* catchTag = loadTag(tagIndex); |
| 3779 | MDefinition* matchesCatchTag = |
| 3780 | compare(exceptionTag, catchTag, JSOp::Eq, MCompare::Compare_WasmAnyRef); |
| 3781 | curBlock_->end( |
| 3782 | MTest::New(alloc(), matchesCatchTag, catchBlock, fallthroughBlock)); |
| 3783 | |
| 3784 | // The landing pad will continue in the fallthrough block |
| 3785 | control.block = fallthroughBlock; |
| 3786 | |
| 3787 | // Set up the catch block by extracting the values from the exception |
| 3788 | // object. |
| 3789 | curBlock_ = catchBlock; |
| 3790 | |
| 3791 | // Remove the tag and exception slots from the block, they are no |
| 3792 | // longer necessary. |
| 3793 | curBlock_->pop(); |
| 3794 | exception = curBlock_->pop(); |
| 3795 | |
| 3796 | // Extract the exception values for the catch block |
| 3797 | DefVector values; |
| 3798 | if (!loadExceptionValues(exception, tagIndex, &values)) { |
| 3799 | return false; |
| 3800 | } |
| 3801 | iter().setResults(values.length(), values); |
| 3802 | return true; |
| 3803 | } |
| 3804 | |
| 3805 | [[nodiscard]] bool loadExceptionValues(MDefinition* exception, |
| 3806 | uint32_t tagIndex, DefVector* values) { |
| 3807 | SharedTagType tagType = codeMeta().tags[tagIndex].type; |
| 3808 | const ValTypeVector& params = tagType->argTypes(); |
| 3809 | const TagOffsetVector& offsets = tagType->argOffsets(); |
| 3810 | |
| 3811 | // Get the data pointer from the exception object |
| 3812 | auto* data = MWasmLoadField::New( |
| 3813 | alloc(), exception, WasmExceptionObject::offsetOfData(), |
| 3814 | MIRType::Pointer, MWideningOp::None, AliasSet::Load(AliasSet::Any)); |
| 3815 | if (!data) { |
| 3816 | return false; |
| 3817 | } |
| 3818 | curBlock_->add(data); |
| 3819 | |
| 3820 | // Presize the values vector to the number of params |
| 3821 | if (!values->reserve(params.length())) { |
| 3822 | return false; |
| 3823 | } |
| 3824 | |
| 3825 | // Load each value from the data pointer |
| 3826 | for (size_t i = 0; i < params.length(); i++) { |
| 3827 | if (!mirGen_.ensureBallast()) { |
| 3828 | return false; |
| 3829 | } |
| 3830 | auto* load = MWasmLoadFieldKA::New( |
| 3831 | alloc(), exception, data, offsets[i], params[i].toMIRType(), |
| 3832 | MWideningOp::None, AliasSet::Load(AliasSet::Any)); |
| 3833 | if (!load || !values->append(load)) { |
| 3834 | return false; |
| 3835 | } |
| 3836 | curBlock_->add(load); |
| 3837 | } |
| 3838 | return true; |
| 3839 | } |
| 3840 | |
| 3841 | [[nodiscard]] bool finishTryCatch(LabelKind kind, Control& control, |
| 3842 | DefVector* defs) { |
| 3843 | switch (kind) { |
| 3844 | case LabelKind::Try: { |
| 3845 | // This is a catchless try, we must delegate all throwing instructions |
| 3846 | // to the nearest enclosing try block if one exists, or else to the |
| 3847 | // body block which will handle it in emitBodyDelegateThrowPad. We |
| 3848 | // specify a relativeDepth of '1' to delegate outside of the still |
| 3849 | // active try block. |
| 3850 | uint32_t relativeDepth = 1; |
| 3851 | if (!delegatePadPatches(control.tryControl->landingPadPatches, |
| 3852 | relativeDepth)) { |
| 3853 | return false; |
| 3854 | } |
| 3855 | break; |
| 3856 | } |
| 3857 | case LabelKind::Catch: { |
| 3858 | MOZ_ASSERT(!control.tryControl->inBody)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!control.tryControl->inBody)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!control.tryControl->inBody ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!control.tryControl->inBody", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3858); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!control.tryControl->inBody" ")"); do { *((volatile int*)__null) = 3858; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3859 | // This is a try without a catch_all, we must have a rethrow at the end |
| 3860 | // of the landing pad (if any). |
| 3861 | MBasicBlock* padBlock = control.block; |
| 3862 | if (padBlock) { |
| 3863 | MBasicBlock* prevBlock = curBlock_; |
| 3864 | curBlock_ = padBlock; |
| 3865 | MDefinition* tag = curBlock_->pop(); |
| 3866 | MDefinition* exception = curBlock_->pop(); |
| 3867 | if (!throwFrom(exception, tag)) { |
| 3868 | return false; |
| 3869 | } |
| 3870 | curBlock_ = prevBlock; |
| 3871 | } |
| 3872 | break; |
| 3873 | } |
| 3874 | case LabelKind::CatchAll: { |
| 3875 | MOZ_ASSERT(!control.tryControl->inBody)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!control.tryControl->inBody)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!control.tryControl->inBody ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!control.tryControl->inBody", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3875); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!control.tryControl->inBody" ")"); do { *((volatile int*)__null) = 3875; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3876 | // This is a try with a catch_all, and requires no special handling. |
| 3877 | break; |
| 3878 | } |
| 3879 | default: |
| 3880 | MOZ_CRASH()do { do { } while (false); MOZ_ReportCrash("" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 3880); AnnotateMozCrashReason("MOZ_CRASH(" ")"); do { *((volatile int*)__null) = 3880; __attribute__((nomerge)) ::abort(); } while (false); } while (false); |
| 3881 | } |
| 3882 | |
| 3883 | // Finish the block, joining the try and catch blocks |
| 3884 | return finishBlock(defs); |
| 3885 | } |
| 3886 | |
| 3887 | [[nodiscard]] bool finishTryTable(Control& control, DefVector* defs) { |
| 3888 | // Mark this control as no longer in the body of the try |
| 3889 | control.tryControl->inBody = false; |
| 3890 | // Create a landing pad for all of the catches |
| 3891 | if (!createTryTableLandingPad(control.tryControl.get())) { |
| 3892 | return false; |
| 3893 | } |
| 3894 | // Finish the block, joining the try and catch blocks |
| 3895 | return finishBlock(defs); |
| 3896 | } |
| 3897 | |
| 3898 | [[nodiscard]] bool emitBodyDelegateThrowPad(Control& control) { |
| 3899 | // Create a landing pad for any throwing instructions |
| 3900 | MBasicBlock* padBlock; |
| 3901 | if (!createTryLandingPadIfNeeded(bodyDelegatePadPatches_, &padBlock)) { |
| 3902 | return false; |
| 3903 | } |
| 3904 | |
| 3905 | // If no landing pad was necessary, then we don't need to do anything here |
| 3906 | if (!padBlock) { |
| 3907 | return true; |
| 3908 | } |
| 3909 | |
| 3910 | // Switch to the landing pad and rethrow the exception |
| 3911 | MBasicBlock* prevBlock = curBlock_; |
| 3912 | curBlock_ = padBlock; |
| 3913 | MDefinition* tag = curBlock_->pop(); |
| 3914 | MDefinition* exception = curBlock_->pop(); |
| 3915 | if (!throwFrom(exception, tag)) { |
| 3916 | return false; |
| 3917 | } |
| 3918 | curBlock_ = prevBlock; |
| 3919 | return true; |
| 3920 | } |
| 3921 | |
| 3922 | [[nodiscard]] bool emitNewException(MDefinition* tag, |
| 3923 | MDefinition** exception) { |
| 3924 | return emitInstanceCall1(readBytecodeOffset(), SASigExceptionNew, tag, |
| 3925 | exception); |
| 3926 | } |
| 3927 | |
| 3928 | [[nodiscard]] bool emitThrow(uint32_t tagIndex, const DefVector& argValues) { |
| 3929 | if (inDeadCode()) { |
| 3930 | return true; |
| 3931 | } |
| 3932 | uint32_t bytecodeOffset = readBytecodeOffset(); |
| 3933 | |
| 3934 | // Load the tag |
| 3935 | MDefinition* tag = loadTag(tagIndex); |
| 3936 | if (!tag) { |
| 3937 | return false; |
| 3938 | } |
| 3939 | |
| 3940 | // Allocate an exception object |
| 3941 | MDefinition* exception; |
| 3942 | if (!emitNewException(tag, &exception)) { |
| 3943 | return false; |
| 3944 | } |
| 3945 | |
| 3946 | // Load the data pointer from the object |
| 3947 | auto* data = MWasmLoadField::New( |
| 3948 | alloc(), exception, WasmExceptionObject::offsetOfData(), |
| 3949 | MIRType::Pointer, MWideningOp::None, AliasSet::Load(AliasSet::Any)); |
| 3950 | if (!data) { |
| 3951 | return false; |
| 3952 | } |
| 3953 | curBlock_->add(data); |
| 3954 | |
| 3955 | // Store the params into the data pointer |
| 3956 | SharedTagType tagType = codeMeta_.tags[tagIndex].type; |
| 3957 | for (size_t i = 0; i < tagType->argOffsets().length(); i++) { |
| 3958 | if (!mirGen_.ensureBallast()) { |
| 3959 | return false; |
| 3960 | } |
| 3961 | ValType type = tagType->argTypes()[i]; |
| 3962 | uint32_t offset = tagType->argOffsets()[i]; |
| 3963 | |
| 3964 | if (!type.isRefRepr()) { |
| 3965 | auto* store = MWasmStoreFieldKA::New(alloc(), exception, data, offset, |
| 3966 | argValues[i], MNarrowingOp::None, |
| 3967 | AliasSet::Store(AliasSet::Any)); |
| 3968 | if (!store) { |
| 3969 | return false; |
| 3970 | } |
| 3971 | curBlock_->add(store); |
| 3972 | continue; |
| 3973 | } |
| 3974 | |
| 3975 | // Store the new value |
| 3976 | auto* store = MWasmStoreFieldRefKA::New( |
| 3977 | alloc(), instancePointer_, exception, data, offset, argValues[i], |
| 3978 | AliasSet::Store(AliasSet::Any), Nothing(), WasmPreBarrierKind::None); |
| 3979 | if (!store) { |
| 3980 | return false; |
| 3981 | } |
| 3982 | curBlock_->add(store); |
| 3983 | |
| 3984 | // Call the post-write barrier |
| 3985 | if (!postBarrierImmediate(bytecodeOffset, exception, data, offset, |
| 3986 | argValues[i])) { |
| 3987 | return false; |
| 3988 | } |
| 3989 | } |
| 3990 | |
| 3991 | // Throw the exception |
| 3992 | return throwFrom(exception, tag); |
| 3993 | } |
| 3994 | |
| 3995 | [[nodiscard]] bool emitThrowRef(MDefinition* exnRef) { |
| 3996 | if (inDeadCode()) { |
| 3997 | return true; |
| 3998 | } |
| 3999 | |
| 4000 | // The exception must be non-null |
| 4001 | if (!refAsNonNull(exnRef)) { |
| 4002 | return false; |
| 4003 | } |
| 4004 | |
| 4005 | // Call Instance::throwException to perform tag unpacking and throw the |
| 4006 | // exception |
| 4007 | if (!emitInstanceCall1(readBytecodeOffset(), SASigThrowException, exnRef)) { |
| 4008 | return false; |
| 4009 | } |
| 4010 | unreachableTrap(); |
| 4011 | |
| 4012 | curBlock_ = nullptr; |
| 4013 | return true; |
| 4014 | } |
| 4015 | |
| 4016 | [[nodiscard]] bool throwFrom(MDefinition* exn, MDefinition* tag) { |
| 4017 | if (inDeadCode()) { |
| 4018 | return true; |
| 4019 | } |
| 4020 | |
| 4021 | // Check if there is a local catching try control, and if so, then add a |
| 4022 | // pad-patch to its tryPadPatches. |
| 4023 | uint32_t relativeTryDepth; |
| 4024 | if (inTryBlock(&relativeTryDepth)) { |
| 4025 | // Set the pending exception state, the landing pad will read from this |
| 4026 | if (!setPendingExceptionState(exn, tag)) { |
| 4027 | return false; |
| 4028 | } |
| 4029 | |
| 4030 | // End with a pending jump to the landing pad |
| 4031 | if (!endWithPadPatch(relativeTryDepth)) { |
| 4032 | return false; |
| 4033 | } |
| 4034 | curBlock_ = nullptr; |
| 4035 | return true; |
| 4036 | } |
| 4037 | |
| 4038 | // If there is no surrounding catching block, call an instance method to |
| 4039 | // throw the exception. |
| 4040 | if (!emitInstanceCall1(readBytecodeOffset(), SASigThrowException, exn)) { |
| 4041 | return false; |
| 4042 | } |
| 4043 | unreachableTrap(); |
| 4044 | |
| 4045 | curBlock_ = nullptr; |
| 4046 | return true; |
| 4047 | } |
| 4048 | |
| 4049 | [[nodiscard]] bool emitRethrow(uint32_t relativeDepth) { |
| 4050 | if (inDeadCode()) { |
| 4051 | return true; |
| 4052 | } |
| 4053 | |
| 4054 | Control& control = iter().controlItem(relativeDepth); |
| 4055 | MBasicBlock* pad = control.block; |
| 4056 | MOZ_ASSERT(pad)do { static_assert( mozilla::detail::AssertionConditionType< decltype(pad)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(pad))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("pad", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4056); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pad" ")"); do { *((volatile int*)__null) = 4056; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 4057 | MOZ_ASSERT(pad->nslots() > 1)do { static_assert( mozilla::detail::AssertionConditionType< decltype(pad->nslots() > 1)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pad->nslots() > 1))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("pad->nslots() > 1" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4057); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pad->nslots() > 1" ")"); do { *((volatile int*)__null) = 4057; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4058 | MOZ_ASSERT(iter().controlKind(relativeDepth) == LabelKind::Catch ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(iter().controlKind(relativeDepth) == LabelKind::Catch || iter().controlKind(relativeDepth) == LabelKind::CatchAll) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(iter().controlKind(relativeDepth) == LabelKind::Catch || iter().controlKind(relativeDepth) == LabelKind::CatchAll) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("iter().controlKind(relativeDepth) == LabelKind::Catch || iter().controlKind(relativeDepth) == LabelKind::CatchAll" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4059); AnnotateMozCrashReason("MOZ_ASSERT" "(" "iter().controlKind(relativeDepth) == LabelKind::Catch || iter().controlKind(relativeDepth) == LabelKind::CatchAll" ")"); do { *((volatile int*)__null) = 4059; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4059 | iter().controlKind(relativeDepth) == LabelKind::CatchAll)do { static_assert( mozilla::detail::AssertionConditionType< decltype(iter().controlKind(relativeDepth) == LabelKind::Catch || iter().controlKind(relativeDepth) == LabelKind::CatchAll) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(iter().controlKind(relativeDepth) == LabelKind::Catch || iter().controlKind(relativeDepth) == LabelKind::CatchAll) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("iter().controlKind(relativeDepth) == LabelKind::Catch || iter().controlKind(relativeDepth) == LabelKind::CatchAll" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4059); AnnotateMozCrashReason("MOZ_ASSERT" "(" "iter().controlKind(relativeDepth) == LabelKind::Catch || iter().controlKind(relativeDepth) == LabelKind::CatchAll" ")"); do { *((volatile int*)__null) = 4059; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4060 | |
| 4061 | // The exception will always be the last slot in the landing pad. |
| 4062 | size_t exnSlotPosition = pad->nslots() - 2; |
| 4063 | MDefinition* tag = pad->getSlot(exnSlotPosition + 1); |
| 4064 | MDefinition* exception = pad->getSlot(exnSlotPosition); |
| 4065 | MOZ_ASSERT(exception->type() == MIRType::WasmAnyRef &&do { static_assert( mozilla::detail::AssertionConditionType< decltype(exception->type() == MIRType::WasmAnyRef && tag->type() == MIRType::WasmAnyRef)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(exception->type() == MIRType ::WasmAnyRef && tag->type() == MIRType::WasmAnyRef ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "exception->type() == MIRType::WasmAnyRef && tag->type() == MIRType::WasmAnyRef" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4066); AnnotateMozCrashReason("MOZ_ASSERT" "(" "exception->type() == MIRType::WasmAnyRef && tag->type() == MIRType::WasmAnyRef" ")"); do { *((volatile int*)__null) = 4066; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4066 | tag->type() == MIRType::WasmAnyRef)do { static_assert( mozilla::detail::AssertionConditionType< decltype(exception->type() == MIRType::WasmAnyRef && tag->type() == MIRType::WasmAnyRef)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(exception->type() == MIRType ::WasmAnyRef && tag->type() == MIRType::WasmAnyRef ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "exception->type() == MIRType::WasmAnyRef && tag->type() == MIRType::WasmAnyRef" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4066); AnnotateMozCrashReason("MOZ_ASSERT" "(" "exception->type() == MIRType::WasmAnyRef && tag->type() == MIRType::WasmAnyRef" ")"); do { *((volatile int*)__null) = 4066; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4067 | return throwFrom(exception, tag); |
| 4068 | } |
| 4069 | |
| 4070 | /*********************************************** Instance call helpers ***/ |
| 4071 | |
| 4072 | // Do not call this function directly -- it offers no protection against |
| 4073 | // mis-counting of arguments. Instead call one of |
| 4074 | // ::emitInstanceCall{0,1,2,3,4,5,6}. |
| 4075 | // |
| 4076 | // Emits a call to the Instance function indicated by `callee`. This is |
| 4077 | // assumed to take an Instance pointer as its first argument. The remaining |
| 4078 | // args are taken from `args`, which is assumed to hold `numArgs` entries. |
| 4079 | // If `result` is non-null, the MDefinition* holding the return value is |
| 4080 | // written to `*result`. |
| 4081 | [[nodiscard]] bool emitInstanceCallN(uint32_t lineOrBytecode, |
| 4082 | const SymbolicAddressSignature& callee, |
| 4083 | MDefinition** args, size_t numArgs, |
| 4084 | MDefinition** result = nullptr) { |
| 4085 | // Check that the first formal parameter is plausibly an Instance pointer. |
| 4086 | MOZ_ASSERT(callee.numArgs > 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(callee.numArgs > 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(callee.numArgs > 0))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("callee.numArgs > 0" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4086); AnnotateMozCrashReason("MOZ_ASSERT" "(" "callee.numArgs > 0" ")"); do { *((volatile int*)__null) = 4086; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4087 | MOZ_ASSERT(callee.argTypes[0] == MIRType::Pointer)do { static_assert( mozilla::detail::AssertionConditionType< decltype(callee.argTypes[0] == MIRType::Pointer)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(callee.argTypes[0] == MIRType::Pointer))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("callee.argTypes[0] == MIRType::Pointer" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4087); AnnotateMozCrashReason("MOZ_ASSERT" "(" "callee.argTypes[0] == MIRType::Pointer" ")"); do { *((volatile int*)__null) = 4087; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4088 | // Check we agree on the number of args. |
| 4089 | MOZ_ASSERT(numArgs + 1 /* the instance pointer */ == callee.numArgs)do { static_assert( mozilla::detail::AssertionConditionType< decltype(numArgs + 1 == callee.numArgs)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(numArgs + 1 == callee.numArgs ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "numArgs + 1 == callee.numArgs", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4089); AnnotateMozCrashReason("MOZ_ASSERT" "(" "numArgs + 1 == callee.numArgs" ")"); do { *((volatile int*)__null) = 4089; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4090 | // Check we agree on whether a value is returned. |
| 4091 | MOZ_ASSERT((result == nullptr) == (callee.retType == MIRType::None))do { static_assert( mozilla::detail::AssertionConditionType< decltype((result == nullptr) == (callee.retType == MIRType::None ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!((result == nullptr) == (callee.retType == MIRType::None )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("(result == nullptr) == (callee.retType == MIRType::None)", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4091); AnnotateMozCrashReason("MOZ_ASSERT" "(" "(result == nullptr) == (callee.retType == MIRType::None)" ")"); do { *((volatile int*)__null) = 4091; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4092 | |
| 4093 | // If we are in dead code, it can happen that some of the `args` entries |
| 4094 | // are nullptr, which will look like an OOM to the logic below. So exit |
| 4095 | // at this point. `passInstance`, `passArg`, `finishCall` and |
| 4096 | // `builtinInstanceMethodCall` all do nothing in dead code, so it's valid |
| 4097 | // to exit here. |
| 4098 | if (inDeadCode()) { |
| 4099 | if (result) { |
| 4100 | *result = nullptr; |
| 4101 | } |
| 4102 | return true; |
| 4103 | } |
| 4104 | |
| 4105 | // Check all args for signs of OOMness before attempting to allocating any |
| 4106 | // more memory. |
| 4107 | for (size_t i = 0; i < numArgs; i++) { |
| 4108 | if (!args[i]) { |
| 4109 | if (result) { |
| 4110 | *result = nullptr; |
| 4111 | } |
| 4112 | return false; |
| 4113 | } |
| 4114 | } |
| 4115 | |
| 4116 | // Finally, construct the call. |
| 4117 | CallCompileState ccsArgs; |
| 4118 | if (!passInstance(callee.argTypes[0], &ccsArgs)) { |
| 4119 | return false; |
| 4120 | } |
| 4121 | for (size_t i = 0; i < numArgs; i++) { |
| 4122 | if (!passArg(args[i], callee.argTypes[i + 1], &ccsArgs)) { |
| 4123 | return false; |
| 4124 | } |
| 4125 | } |
| 4126 | if (!finishCall(&ccsArgs)) { |
| 4127 | return false; |
| 4128 | } |
| 4129 | return builtinInstanceMethodCall(callee, lineOrBytecode, ccsArgs, result); |
| 4130 | } |
| 4131 | |
| 4132 | [[nodiscard]] bool emitInstanceCall0(uint32_t lineOrBytecode, |
| 4133 | const SymbolicAddressSignature& callee, |
| 4134 | MDefinition** result = nullptr) { |
| 4135 | MDefinition* args[0] = {}; |
| 4136 | return emitInstanceCallN(lineOrBytecode, callee, args, 0, result); |
| 4137 | } |
| 4138 | [[nodiscard]] bool emitInstanceCall1(uint32_t lineOrBytecode, |
| 4139 | const SymbolicAddressSignature& callee, |
| 4140 | MDefinition* arg1, |
| 4141 | MDefinition** result = nullptr) { |
| 4142 | MDefinition* args[1] = {arg1}; |
| 4143 | return emitInstanceCallN(lineOrBytecode, callee, args, 1, result); |
| 4144 | } |
| 4145 | [[nodiscard]] bool emitInstanceCall2(uint32_t lineOrBytecode, |
| 4146 | const SymbolicAddressSignature& callee, |
| 4147 | MDefinition* arg1, MDefinition* arg2, |
| 4148 | MDefinition** result = nullptr) { |
| 4149 | MDefinition* args[2] = {arg1, arg2}; |
| 4150 | return emitInstanceCallN(lineOrBytecode, callee, args, 2, result); |
| 4151 | } |
| 4152 | [[nodiscard]] bool emitInstanceCall3(uint32_t lineOrBytecode, |
| 4153 | const SymbolicAddressSignature& callee, |
| 4154 | MDefinition* arg1, MDefinition* arg2, |
| 4155 | MDefinition* arg3, |
| 4156 | MDefinition** result = nullptr) { |
| 4157 | MDefinition* args[3] = {arg1, arg2, arg3}; |
| 4158 | return emitInstanceCallN(lineOrBytecode, callee, args, 3, result); |
| 4159 | } |
| 4160 | [[nodiscard]] bool emitInstanceCall4(uint32_t lineOrBytecode, |
| 4161 | const SymbolicAddressSignature& callee, |
| 4162 | MDefinition* arg1, MDefinition* arg2, |
| 4163 | MDefinition* arg3, MDefinition* arg4, |
| 4164 | MDefinition** result = nullptr) { |
| 4165 | MDefinition* args[4] = {arg1, arg2, arg3, arg4}; |
| 4166 | return emitInstanceCallN(lineOrBytecode, callee, args, 4, result); |
| 4167 | } |
| 4168 | [[nodiscard]] bool emitInstanceCall5(uint32_t lineOrBytecode, |
| 4169 | const SymbolicAddressSignature& callee, |
| 4170 | MDefinition* arg1, MDefinition* arg2, |
| 4171 | MDefinition* arg3, MDefinition* arg4, |
| 4172 | MDefinition* arg5, |
| 4173 | MDefinition** result = nullptr) { |
| 4174 | MDefinition* args[5] = {arg1, arg2, arg3, arg4, arg5}; |
| 4175 | return emitInstanceCallN(lineOrBytecode, callee, args, 5, result); |
| 4176 | } |
| 4177 | [[nodiscard]] bool emitInstanceCall6(uint32_t lineOrBytecode, |
| 4178 | const SymbolicAddressSignature& callee, |
| 4179 | MDefinition* arg1, MDefinition* arg2, |
| 4180 | MDefinition* arg3, MDefinition* arg4, |
| 4181 | MDefinition* arg5, MDefinition* arg6, |
| 4182 | MDefinition** result = nullptr) { |
| 4183 | MDefinition* args[6] = {arg1, arg2, arg3, arg4, arg5, arg6}; |
| 4184 | return emitInstanceCallN(lineOrBytecode, callee, args, 6, result); |
| 4185 | } |
| 4186 | |
| 4187 | /******************************** WasmGC: low level load/store helpers ***/ |
| 4188 | |
| 4189 | // Given a (StorageType, FieldExtension) pair, produce the (MIRType, |
| 4190 | // MWideningOp) pair that will give the correct operation for reading the |
| 4191 | // value from memory. |
| 4192 | static void fieldLoadInfoToMIR(StorageType type, FieldWideningOp wideningOp, |
| 4193 | MIRType* mirType, MWideningOp* mirWideningOp) { |
| 4194 | switch (type.kind()) { |
| 4195 | case StorageType::I8: { |
| 4196 | switch (wideningOp) { |
| 4197 | case FieldWideningOp::Signed: |
| 4198 | *mirType = MIRType::Int32; |
| 4199 | *mirWideningOp = MWideningOp::FromS8; |
| 4200 | return; |
| 4201 | case FieldWideningOp::Unsigned: |
| 4202 | *mirType = MIRType::Int32; |
| 4203 | *mirWideningOp = MWideningOp::FromU8; |
| 4204 | return; |
| 4205 | default: |
| 4206 | MOZ_CRASH()do { do { } while (false); MOZ_ReportCrash("" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4206); AnnotateMozCrashReason("MOZ_CRASH(" ")"); do { *((volatile int*)__null) = 4206; __attribute__((nomerge)) ::abort(); } while (false); } while (false); |
| 4207 | } |
| 4208 | } |
| 4209 | case StorageType::I16: { |
| 4210 | switch (wideningOp) { |
| 4211 | case FieldWideningOp::Signed: |
| 4212 | *mirType = MIRType::Int32; |
| 4213 | *mirWideningOp = MWideningOp::FromS16; |
| 4214 | return; |
| 4215 | case FieldWideningOp::Unsigned: |
| 4216 | *mirType = MIRType::Int32; |
| 4217 | *mirWideningOp = MWideningOp::FromU16; |
| 4218 | return; |
| 4219 | default: |
| 4220 | MOZ_CRASH()do { do { } while (false); MOZ_ReportCrash("" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4220); AnnotateMozCrashReason("MOZ_CRASH(" ")"); do { *((volatile int*)__null) = 4220; __attribute__((nomerge)) ::abort(); } while (false); } while (false); |
| 4221 | } |
| 4222 | } |
| 4223 | default: { |
| 4224 | switch (wideningOp) { |
| 4225 | case FieldWideningOp::None: |
| 4226 | *mirType = type.toMIRType(); |
| 4227 | *mirWideningOp = MWideningOp::None; |
| 4228 | return; |
| 4229 | default: |
| 4230 | MOZ_CRASH()do { do { } while (false); MOZ_ReportCrash("" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4230); AnnotateMozCrashReason("MOZ_CRASH(" ")"); do { *((volatile int*)__null) = 4230; __attribute__((nomerge)) ::abort(); } while (false); } while (false); |
| 4231 | } |
| 4232 | } |
| 4233 | } |
| 4234 | } |
| 4235 | |
| 4236 | // Given a StorageType, return the Scale required when accessing array |
| 4237 | // elements of this type. |
| 4238 | static Scale scaleFromFieldType(StorageType type) { |
| 4239 | if (type.kind() == StorageType::V128) { |
| 4240 | // V128 is accessed differently, so this scale will not be used. |
| 4241 | return Scale::Invalid; |
| 4242 | } |
| 4243 | return ShiftToScale(type.indexingShift()); |
| 4244 | } |
| 4245 | |
| 4246 | // Given a StorageType, produce the MNarrowingOp required for writing the |
| 4247 | // value to memory. |
| 4248 | static MNarrowingOp fieldStoreInfoToMIR(StorageType type) { |
| 4249 | switch (type.kind()) { |
| 4250 | case StorageType::I8: |
| 4251 | return MNarrowingOp::To8; |
| 4252 | case StorageType::I16: |
| 4253 | return MNarrowingOp::To16; |
| 4254 | default: |
| 4255 | return MNarrowingOp::None; |
| 4256 | } |
| 4257 | } |
| 4258 | |
| 4259 | // Generate a write of `value` at address `base + offset`, where `offset` is |
| 4260 | // known at JIT time. If the written value is a reftype, the previous value |
| 4261 | // at `base + offset` will be retrieved and handed off to the post-write |
| 4262 | // barrier. `keepAlive` will be referenced by the instruction so as to hold |
| 4263 | // it live (from the GC's point of view). |
| 4264 | [[nodiscard]] bool writeGcValueAtBasePlusOffset( |
| 4265 | uint32_t lineOrBytecode, StorageType type, MDefinition* keepAlive, |
| 4266 | AliasSet::Flag aliasBitset, MDefinition* value, MDefinition* base, |
| 4267 | uint32_t offset, bool needsTrapInfo, WasmPreBarrierKind preBarrierKind) { |
| 4268 | MOZ_ASSERT(aliasBitset != 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aliasBitset != 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aliasBitset != 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aliasBitset != 0" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4268); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aliasBitset != 0" ")"); do { *((volatile int*)__null) = 4268; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4269 | MOZ_ASSERT(keepAlive->type() == MIRType::WasmAnyRef)do { static_assert( mozilla::detail::AssertionConditionType< decltype(keepAlive->type() == MIRType::WasmAnyRef)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(keepAlive->type() == MIRType::WasmAnyRef))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("keepAlive->type() == MIRType::WasmAnyRef" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4269); AnnotateMozCrashReason("MOZ_ASSERT" "(" "keepAlive->type() == MIRType::WasmAnyRef" ")"); do { *((volatile int*)__null) = 4269; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4270 | MOZ_ASSERT(type.widenToValType().toMIRType() == value->type())do { static_assert( mozilla::detail::AssertionConditionType< decltype(type.widenToValType().toMIRType() == value->type( ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(type.widenToValType().toMIRType() == value->type( )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("type.widenToValType().toMIRType() == value->type()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4270); AnnotateMozCrashReason("MOZ_ASSERT" "(" "type.widenToValType().toMIRType() == value->type()" ")"); do { *((volatile int*)__null) = 4270; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4271 | MNarrowingOp narrowingOp = fieldStoreInfoToMIR(type); |
| 4272 | |
| 4273 | if (!type.isRefRepr()) { |
| 4274 | MaybeTrapSiteInfo maybeTrap; |
| 4275 | if (needsTrapInfo) { |
| 4276 | maybeTrap.emplace(getTrapSiteInfo()); |
| 4277 | } |
| 4278 | auto* store = MWasmStoreFieldKA::New( |
| 4279 | alloc(), keepAlive, base, offset, value, narrowingOp, |
| 4280 | AliasSet::Store(aliasBitset), maybeTrap); |
| 4281 | if (!store) { |
| 4282 | return false; |
| 4283 | } |
| 4284 | curBlock_->add(store); |
| 4285 | return true; |
| 4286 | } |
| 4287 | |
| 4288 | // Otherwise it's a ref store. Load the previous value so we can show it |
| 4289 | // to the post-write barrier. |
| 4290 | // |
| 4291 | // Optimisation opportunity: for the case where this field write results |
| 4292 | // from struct.new, the old value is always zero. So we should synthesise |
| 4293 | // a suitable zero constant rather than reading it from the object. See |
| 4294 | // also bug 1799999. |
| 4295 | MOZ_ASSERT(narrowingOp == MNarrowingOp::None)do { static_assert( mozilla::detail::AssertionConditionType< decltype(narrowingOp == MNarrowingOp::None)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(narrowingOp == MNarrowingOp:: None))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("narrowingOp == MNarrowingOp::None", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4295); AnnotateMozCrashReason("MOZ_ASSERT" "(" "narrowingOp == MNarrowingOp::None" ")"); do { *((volatile int*)__null) = 4295; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4296 | MOZ_ASSERT(type.widenToValType() == type.valType())do { static_assert( mozilla::detail::AssertionConditionType< decltype(type.widenToValType() == type.valType())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(type.widenToValType() == type.valType()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("type.widenToValType() == type.valType()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4296); AnnotateMozCrashReason("MOZ_ASSERT" "(" "type.widenToValType() == type.valType()" ")"); do { *((volatile int*)__null) = 4296; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4297 | |
| 4298 | // Store the new value |
| 4299 | auto* store = MWasmStoreFieldRefKA::New( |
| 4300 | alloc(), instancePointer_, keepAlive, base, offset, value, |
| 4301 | AliasSet::Store(aliasBitset), mozilla::Some(getTrapSiteInfo()), |
| 4302 | preBarrierKind); |
| 4303 | if (!store) { |
| 4304 | return false; |
| 4305 | } |
| 4306 | curBlock_->add(store); |
| 4307 | |
| 4308 | // Call the post-write barrier |
| 4309 | return postBarrierImmediate(lineOrBytecode, keepAlive, base, offset, value); |
| 4310 | } |
| 4311 | |
| 4312 | // Generate a write of `value` at address `base + index * scale`, where |
| 4313 | // `scale` is known at JIT-time. If the written value is a reftype, the |
| 4314 | // previous value at `base + index * scale` will be retrieved and handed off |
| 4315 | // to the post-write barrier. `keepAlive` will be referenced by the |
| 4316 | // instruction so as to hold it live (from the GC's point of view). |
| 4317 | [[nodiscard]] bool writeGcValueAtBasePlusScaledIndex( |
| 4318 | uint32_t lineOrBytecode, StorageType type, MDefinition* keepAlive, |
| 4319 | AliasSet::Flag aliasBitset, MDefinition* value, MDefinition* base, |
| 4320 | uint32_t scale, MDefinition* index, WasmPreBarrierKind preBarrierKind) { |
| 4321 | MOZ_ASSERT(aliasBitset != 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aliasBitset != 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aliasBitset != 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aliasBitset != 0" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4321); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aliasBitset != 0" ")"); do { *((volatile int*)__null) = 4321; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4322 | MOZ_ASSERT(keepAlive->type() == MIRType::WasmAnyRef)do { static_assert( mozilla::detail::AssertionConditionType< decltype(keepAlive->type() == MIRType::WasmAnyRef)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(keepAlive->type() == MIRType::WasmAnyRef))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("keepAlive->type() == MIRType::WasmAnyRef" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4322); AnnotateMozCrashReason("MOZ_ASSERT" "(" "keepAlive->type() == MIRType::WasmAnyRef" ")"); do { *((volatile int*)__null) = 4322; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4323 | MOZ_ASSERT(type.widenToValType().toMIRType() == value->type())do { static_assert( mozilla::detail::AssertionConditionType< decltype(type.widenToValType().toMIRType() == value->type( ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(type.widenToValType().toMIRType() == value->type( )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("type.widenToValType().toMIRType() == value->type()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4323); AnnotateMozCrashReason("MOZ_ASSERT" "(" "type.widenToValType().toMIRType() == value->type()" ")"); do { *((volatile int*)__null) = 4323; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4324 | MOZ_ASSERT(scale == 1 || scale == 2 || scale == 4 || scale == 8 ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(scale == 1 || scale == 2 || scale == 4 || scale == 8 || scale == 16)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(scale == 1 || scale == 2 || scale == 4 || scale == 8 || scale == 16))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("scale == 1 || scale == 2 || scale == 4 || scale == 8 || scale == 16" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4325); AnnotateMozCrashReason("MOZ_ASSERT" "(" "scale == 1 || scale == 2 || scale == 4 || scale == 8 || scale == 16" ")"); do { *((volatile int*)__null) = 4325; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4325 | scale == 16)do { static_assert( mozilla::detail::AssertionConditionType< decltype(scale == 1 || scale == 2 || scale == 4 || scale == 8 || scale == 16)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(scale == 1 || scale == 2 || scale == 4 || scale == 8 || scale == 16))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("scale == 1 || scale == 2 || scale == 4 || scale == 8 || scale == 16" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4325); AnnotateMozCrashReason("MOZ_ASSERT" "(" "scale == 1 || scale == 2 || scale == 4 || scale == 8 || scale == 16" ")"); do { *((volatile int*)__null) = 4325; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4326 | |
| 4327 | MNarrowingOp narrowingOp = fieldStoreInfoToMIR(type); |
| 4328 | |
| 4329 | if (!type.isRefRepr()) { |
| 4330 | MaybeTrapSiteInfo maybeTrap; |
| 4331 | Scale scale = scaleFromFieldType(type); |
| 4332 | auto* store = MWasmStoreElementKA::New( |
| 4333 | alloc(), keepAlive, base, index, value, narrowingOp, scale, |
| 4334 | AliasSet::Store(aliasBitset), maybeTrap); |
| 4335 | if (!store) { |
| 4336 | return false; |
| 4337 | } |
| 4338 | curBlock_->add(store); |
| 4339 | return true; |
| 4340 | } |
| 4341 | |
| 4342 | // Otherwise it's a ref store. |
| 4343 | MOZ_ASSERT(narrowingOp == MNarrowingOp::None)do { static_assert( mozilla::detail::AssertionConditionType< decltype(narrowingOp == MNarrowingOp::None)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(narrowingOp == MNarrowingOp:: None))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("narrowingOp == MNarrowingOp::None", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4343); AnnotateMozCrashReason("MOZ_ASSERT" "(" "narrowingOp == MNarrowingOp::None" ")"); do { *((volatile int*)__null) = 4343; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4344 | MOZ_ASSERT(type.widenToValType() == type.valType())do { static_assert( mozilla::detail::AssertionConditionType< decltype(type.widenToValType() == type.valType())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(type.widenToValType() == type.valType()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("type.widenToValType() == type.valType()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4344); AnnotateMozCrashReason("MOZ_ASSERT" "(" "type.widenToValType() == type.valType()" ")"); do { *((volatile int*)__null) = 4344; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4345 | |
| 4346 | // Store the new value |
| 4347 | auto* store = MWasmStoreElementRefKA::New( |
| 4348 | alloc(), instancePointer_, keepAlive, base, index, value, |
| 4349 | AliasSet::Store(aliasBitset), mozilla::Some(getTrapSiteInfo()), |
| 4350 | preBarrierKind); |
| 4351 | if (!store) { |
| 4352 | return false; |
| 4353 | } |
| 4354 | curBlock_->add(store); |
| 4355 | |
| 4356 | return postBarrierIndex(lineOrBytecode, keepAlive, base, index, |
| 4357 | sizeof(void*), value); |
| 4358 | } |
| 4359 | |
| 4360 | // Generate a read from address `base + offset`, where `offset` is known at |
| 4361 | // JIT time. The loaded value will be widened as described by `type` and |
| 4362 | // `fieldWideningOp`. `keepAlive` will be referenced by the instruction so as |
| 4363 | // to hold it live (from the GC's point of view). |
| 4364 | [[nodiscard]] MDefinition* readGcValueAtBasePlusOffset( |
| 4365 | StorageType type, FieldWideningOp fieldWideningOp, MDefinition* keepAlive, |
| 4366 | AliasSet::Flag aliasBitset, MDefinition* base, uint32_t offset, |
| 4367 | bool needsTrapInfo) { |
| 4368 | MOZ_ASSERT(aliasBitset != 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aliasBitset != 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aliasBitset != 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aliasBitset != 0" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4368); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aliasBitset != 0" ")"); do { *((volatile int*)__null) = 4368; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4369 | MOZ_ASSERT(keepAlive->type() == MIRType::WasmAnyRef)do { static_assert( mozilla::detail::AssertionConditionType< decltype(keepAlive->type() == MIRType::WasmAnyRef)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(keepAlive->type() == MIRType::WasmAnyRef))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("keepAlive->type() == MIRType::WasmAnyRef" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4369); AnnotateMozCrashReason("MOZ_ASSERT" "(" "keepAlive->type() == MIRType::WasmAnyRef" ")"); do { *((volatile int*)__null) = 4369; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4370 | MIRType mirType; |
| 4371 | MWideningOp mirWideningOp; |
| 4372 | fieldLoadInfoToMIR(type, fieldWideningOp, &mirType, &mirWideningOp); |
| 4373 | MaybeTrapSiteInfo maybeTrap; |
| 4374 | if (needsTrapInfo) { |
| 4375 | maybeTrap.emplace(getTrapSiteInfo()); |
| 4376 | } |
| 4377 | auto* load = MWasmLoadFieldKA::New(alloc(), keepAlive, base, offset, |
| 4378 | mirType, mirWideningOp, |
| 4379 | AliasSet::Load(aliasBitset), maybeTrap); |
| 4380 | if (!load) { |
| 4381 | return nullptr; |
| 4382 | } |
| 4383 | curBlock_->add(load); |
| 4384 | return load; |
| 4385 | } |
| 4386 | |
| 4387 | // Generate a read from address `base + index * scale`, where `scale` is |
| 4388 | // known at JIT-time. The loaded value will be widened as described by |
| 4389 | // `type` and `fieldWideningOp`. `keepAlive` will be referenced by the |
| 4390 | // instruction so as to hold it live (from the GC's point of view). |
| 4391 | [[nodiscard]] MDefinition* readGcArrayValueAtIndex( |
| 4392 | StorageType type, FieldWideningOp fieldWideningOp, MDefinition* keepAlive, |
| 4393 | AliasSet::Flag aliasBitset, MDefinition* base, MDefinition* index) { |
| 4394 | MOZ_ASSERT(aliasBitset != 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aliasBitset != 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aliasBitset != 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aliasBitset != 0" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4394); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aliasBitset != 0" ")"); do { *((volatile int*)__null) = 4394; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4395 | MOZ_ASSERT(keepAlive->type() == MIRType::WasmAnyRef)do { static_assert( mozilla::detail::AssertionConditionType< decltype(keepAlive->type() == MIRType::WasmAnyRef)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(keepAlive->type() == MIRType::WasmAnyRef))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("keepAlive->type() == MIRType::WasmAnyRef" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4395); AnnotateMozCrashReason("MOZ_ASSERT" "(" "keepAlive->type() == MIRType::WasmAnyRef" ")"); do { *((volatile int*)__null) = 4395; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4396 | |
| 4397 | MIRType mirType; |
| 4398 | MWideningOp mirWideningOp; |
| 4399 | fieldLoadInfoToMIR(type, fieldWideningOp, &mirType, &mirWideningOp); |
| 4400 | Scale scale = scaleFromFieldType(type); |
| 4401 | auto* load = MWasmLoadElementKA::New( |
| 4402 | alloc(), keepAlive, base, index, mirType, mirWideningOp, scale, |
| 4403 | AliasSet::Load(aliasBitset), mozilla::Some(getTrapSiteInfo())); |
| 4404 | if (!load) { |
| 4405 | return nullptr; |
| 4406 | } |
| 4407 | curBlock_->add(load); |
| 4408 | return load; |
| 4409 | } |
| 4410 | |
| 4411 | /************************************************ WasmGC: type helpers ***/ |
| 4412 | |
| 4413 | // Returns an MDefinition holding the supertype vector for `typeIndex`. |
| 4414 | [[nodiscard]] MDefinition* loadSuperTypeVector(uint32_t typeIndex) { |
| 4415 | uint32_t stvOffset = codeMeta().offsetOfSuperTypeVector(typeIndex); |
| 4416 | |
| 4417 | auto* load = |
| 4418 | MWasmLoadInstanceDataField::New(alloc(), MIRType::Pointer, stvOffset, |
| 4419 | /*isConst=*/true, instancePointer_); |
| 4420 | if (!load) { |
| 4421 | return nullptr; |
| 4422 | } |
| 4423 | curBlock_->add(load); |
| 4424 | return load; |
| 4425 | } |
| 4426 | |
| 4427 | [[nodiscard]] MDefinition* loadTypeDefInstanceData(uint32_t typeIndex) { |
| 4428 | size_t offset = Instance::offsetInData( |
| 4429 | codeMeta_.offsetOfTypeDefInstanceData(typeIndex)); |
| 4430 | auto* result = MWasmDerivedPointer::New(alloc(), instancePointer_, offset); |
| 4431 | if (!result) { |
| 4432 | return nullptr; |
| 4433 | } |
| 4434 | curBlock_->add(result); |
| 4435 | return result; |
| 4436 | } |
| 4437 | |
| 4438 | /********************************************** WasmGC: struct helpers ***/ |
| 4439 | |
| 4440 | [[nodiscard]] MDefinition* createStructObject(uint32_t typeIndex, |
| 4441 | bool zeroFields) { |
| 4442 | const TypeDef& typeDef = (*codeMeta().types)[typeIndex]; |
| 4443 | gc::AllocKind allocKind = WasmStructObject::allocKindForTypeDef(&typeDef); |
| 4444 | bool isOutline = |
| 4445 | WasmStructObject::requiresOutlineBytes(typeDef.structType().size_); |
| 4446 | |
| 4447 | // Allocate an uninitialized struct. This requires the type definition |
| 4448 | // for the struct. |
| 4449 | MDefinition* typeDefData = loadTypeDefInstanceData(typeIndex); |
| 4450 | if (!typeDefData) { |
| 4451 | return nullptr; |
| 4452 | } |
| 4453 | |
| 4454 | auto* structObject = |
| 4455 | MWasmNewStructObject::New(alloc(), instancePointer_, typeDefData, |
| 4456 | isOutline, zeroFields, allocKind); |
| 4457 | if (!structObject) { |
| 4458 | return nullptr; |
| 4459 | } |
| 4460 | curBlock_->add(structObject); |
| 4461 | |
| 4462 | return structObject; |
| 4463 | } |
| 4464 | |
| 4465 | // Helper function for EmitStruct{New,Set}: given a MIR pointer to a |
| 4466 | // WasmStructObject, a MIR pointer to a value, and a field descriptor, |
| 4467 | // generate MIR to write the value to the relevant field in the object. |
| 4468 | [[nodiscard]] bool writeValueToStructField( |
| 4469 | uint32_t lineOrBytecode, const StructField& field, |
| 4470 | MDefinition* structObject, MDefinition* value, |
| 4471 | WasmPreBarrierKind preBarrierKind) { |
| 4472 | StorageType fieldType = field.type; |
| 4473 | uint32_t fieldOffset = field.offset; |
| 4474 | |
| 4475 | bool areaIsOutline; |
| 4476 | uint32_t areaOffset; |
| 4477 | WasmStructObject::fieldOffsetToAreaAndOffset(fieldType, fieldOffset, |
| 4478 | &areaIsOutline, &areaOffset); |
| 4479 | |
| 4480 | // Make `base` point at the first byte of either the struct object as a |
| 4481 | // whole or of the out-of-line data area. And adjust `areaOffset` |
| 4482 | // accordingly. |
| 4483 | MDefinition* base; |
| 4484 | bool needsTrapInfo; |
| 4485 | if (areaIsOutline) { |
| 4486 | auto* load = MWasmLoadField::New( |
| 4487 | alloc(), structObject, WasmStructObject::offsetOfOutlineData(), |
| 4488 | MIRType::Pointer, MWideningOp::None, |
| 4489 | AliasSet::Load(AliasSet::WasmStructOutlineDataPointer), |
| 4490 | mozilla::Some(getTrapSiteInfo())); |
| 4491 | if (!load) { |
| 4492 | return false; |
| 4493 | } |
| 4494 | curBlock_->add(load); |
| 4495 | base = load; |
| 4496 | needsTrapInfo = false; |
| 4497 | } else { |
| 4498 | base = structObject; |
| 4499 | needsTrapInfo = true; |
| 4500 | areaOffset += WasmStructObject::offsetOfInlineData(); |
| 4501 | } |
| 4502 | // The transaction is to happen at `base + areaOffset`, so to speak. |
| 4503 | // After this point we must ignore `fieldOffset`. |
| 4504 | |
| 4505 | // The alias set denoting the field's location, although lacking a |
| 4506 | // Load-vs-Store indication at this point. |
| 4507 | AliasSet::Flag fieldAliasSet = areaIsOutline |
| 4508 | ? AliasSet::WasmStructOutlineDataArea |
| 4509 | : AliasSet::WasmStructInlineDataArea; |
| 4510 | |
| 4511 | return writeGcValueAtBasePlusOffset(lineOrBytecode, fieldType, structObject, |
| 4512 | fieldAliasSet, value, base, areaOffset, |
| 4513 | needsTrapInfo, preBarrierKind); |
| 4514 | } |
| 4515 | |
| 4516 | // Helper function for EmitStructGet: given a MIR pointer to a |
| 4517 | // WasmStructObject, a field descriptor and a field widening operation, |
| 4518 | // generate MIR to read the value from the relevant field in the object. |
| 4519 | [[nodiscard]] MDefinition* readValueFromStructField( |
| 4520 | const StructField& field, FieldWideningOp wideningOp, |
| 4521 | MDefinition* structObject) { |
| 4522 | StorageType fieldType = field.type; |
| 4523 | uint32_t fieldOffset = field.offset; |
| 4524 | |
| 4525 | bool areaIsOutline; |
| 4526 | uint32_t areaOffset; |
| 4527 | WasmStructObject::fieldOffsetToAreaAndOffset(fieldType, fieldOffset, |
| 4528 | &areaIsOutline, &areaOffset); |
| 4529 | |
| 4530 | // Make `base` point at the first byte of either the struct object as a |
| 4531 | // whole or of the out-of-line data area. And adjust `areaOffset` |
| 4532 | // accordingly. |
| 4533 | MDefinition* base; |
| 4534 | bool needsTrapInfo; |
| 4535 | if (areaIsOutline) { |
| 4536 | auto* loadOOLptr = MWasmLoadField::New( |
| 4537 | alloc(), structObject, WasmStructObject::offsetOfOutlineData(), |
| 4538 | MIRType::Pointer, MWideningOp::None, |
| 4539 | AliasSet::Load(AliasSet::WasmStructOutlineDataPointer), |
| 4540 | mozilla::Some(getTrapSiteInfo())); |
| 4541 | if (!loadOOLptr) { |
| 4542 | return nullptr; |
| 4543 | } |
| 4544 | curBlock_->add(loadOOLptr); |
| 4545 | base = loadOOLptr; |
| 4546 | needsTrapInfo = false; |
| 4547 | } else { |
| 4548 | base = structObject; |
| 4549 | needsTrapInfo = true; |
| 4550 | areaOffset += WasmStructObject::offsetOfInlineData(); |
| 4551 | } |
| 4552 | // The transaction is to happen at `base + areaOffset`, so to speak. |
| 4553 | // After this point we must ignore `fieldOffset`. |
| 4554 | |
| 4555 | // The alias set denoting the field's location, although lacking a |
| 4556 | // Load-vs-Store indication at this point. |
| 4557 | AliasSet::Flag fieldAliasSet = areaIsOutline |
| 4558 | ? AliasSet::WasmStructOutlineDataArea |
| 4559 | : AliasSet::WasmStructInlineDataArea; |
| 4560 | |
| 4561 | return readGcValueAtBasePlusOffset(fieldType, wideningOp, structObject, |
| 4562 | fieldAliasSet, base, areaOffset, |
| 4563 | needsTrapInfo); |
| 4564 | } |
| 4565 | |
| 4566 | /********************************* WasmGC: address-arithmetic helpers ***/ |
| 4567 | |
| 4568 | inline bool targetIs64Bit() const { |
| 4569 | #ifdef JS_64BIT1 |
| 4570 | return true; |
| 4571 | #else |
| 4572 | return false; |
| 4573 | #endif |
| 4574 | } |
| 4575 | |
| 4576 | // Generate MIR to unsigned widen `val` out to the target word size. If |
| 4577 | // `val` is already at the target word size, this is a no-op. The only |
| 4578 | // other allowed case is where `val` is Int32 and we're compiling for a |
| 4579 | // 64-bit target, in which case a widen is generated. |
| 4580 | [[nodiscard]] MDefinition* unsignedWidenToTargetWord(MDefinition* val) { |
| 4581 | if (targetIs64Bit()) { |
| 4582 | if (val->type() == MIRType::Int32) { |
| 4583 | auto* ext = MExtendInt32ToInt64::New(alloc(), val, /*isUnsigned=*/true); |
| 4584 | if (!ext) { |
| 4585 | return nullptr; |
| 4586 | } |
| 4587 | curBlock_->add(ext); |
| 4588 | return ext; |
| 4589 | } |
| 4590 | MOZ_ASSERT(val->type() == MIRType::Int64)do { static_assert( mozilla::detail::AssertionConditionType< decltype(val->type() == MIRType::Int64)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(val->type() == MIRType::Int64 ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "val->type() == MIRType::Int64", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4590); AnnotateMozCrashReason("MOZ_ASSERT" "(" "val->type() == MIRType::Int64" ")"); do { *((volatile int*)__null) = 4590; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4591 | return val; |
| 4592 | } |
| 4593 | MOZ_ASSERT(val->type() == MIRType::Int32)do { static_assert( mozilla::detail::AssertionConditionType< decltype(val->type() == MIRType::Int32)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(val->type() == MIRType::Int32 ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "val->type() == MIRType::Int32", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4593); AnnotateMozCrashReason("MOZ_ASSERT" "(" "val->type() == MIRType::Int32" ")"); do { *((volatile int*)__null) = 4593; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4594 | return val; |
| 4595 | } |
| 4596 | |
| 4597 | /********************************************** WasmGC: array helpers ***/ |
| 4598 | |
| 4599 | // Given `arrayObject`, the address of a WasmArrayObject, generate MIR to |
| 4600 | // return the contents of the WasmArrayObject::numElements_ field. |
| 4601 | // Adds trap site info for the null check. |
| 4602 | [[nodiscard]] MDefinition* getWasmArrayObjectNumElements( |
| 4603 | MDefinition* arrayObject) { |
| 4604 | MOZ_ASSERT(arrayObject->type() == MIRType::WasmAnyRef)do { static_assert( mozilla::detail::AssertionConditionType< decltype(arrayObject->type() == MIRType::WasmAnyRef)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(arrayObject->type() == MIRType::WasmAnyRef))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("arrayObject->type() == MIRType::WasmAnyRef" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4604); AnnotateMozCrashReason("MOZ_ASSERT" "(" "arrayObject->type() == MIRType::WasmAnyRef" ")"); do { *((volatile int*)__null) = 4604; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4605 | |
| 4606 | auto* numElements = MWasmLoadField::New( |
| 4607 | alloc(), arrayObject, WasmArrayObject::offsetOfNumElements(), |
| 4608 | MIRType::Int32, MWideningOp::None, |
| 4609 | AliasSet::Load(AliasSet::WasmArrayNumElements), |
| 4610 | mozilla::Some(getTrapSiteInfo())); |
| 4611 | if (!numElements) { |
| 4612 | return nullptr; |
| 4613 | } |
| 4614 | curBlock_->add(numElements); |
| 4615 | |
| 4616 | return numElements; |
| 4617 | } |
| 4618 | |
| 4619 | // Given `arrayObject`, the address of a WasmArrayObject, generate MIR to |
| 4620 | // return the contents of the WasmArrayObject::data_ field. |
| 4621 | [[nodiscard]] MDefinition* getWasmArrayObjectData(MDefinition* arrayObject) { |
| 4622 | MOZ_ASSERT(arrayObject->type() == MIRType::WasmAnyRef)do { static_assert( mozilla::detail::AssertionConditionType< decltype(arrayObject->type() == MIRType::WasmAnyRef)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(arrayObject->type() == MIRType::WasmAnyRef))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("arrayObject->type() == MIRType::WasmAnyRef" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4622); AnnotateMozCrashReason("MOZ_ASSERT" "(" "arrayObject->type() == MIRType::WasmAnyRef" ")"); do { *((volatile int*)__null) = 4622; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4623 | |
| 4624 | auto* data = MWasmLoadField::New( |
| 4625 | alloc(), arrayObject, WasmArrayObject::offsetOfData(), |
| 4626 | MIRType::WasmArrayData, MWideningOp::None, |
| 4627 | AliasSet::Load(AliasSet::WasmArrayDataPointer), |
| 4628 | mozilla::Some(getTrapSiteInfo())); |
| 4629 | if (!data) { |
| 4630 | return nullptr; |
| 4631 | } |
| 4632 | curBlock_->add(data); |
| 4633 | |
| 4634 | return data; |
| 4635 | } |
| 4636 | |
| 4637 | // Given a JIT-time-known type index `typeIndex` and a run-time known number |
| 4638 | // of elements `numElements`, create MIR to allocate a new wasm array, |
| 4639 | // possibly initialized with `typeIndex`s default value. |
| 4640 | [[nodiscard]] MDefinition* createArrayObject(uint32_t lineOrBytecode, |
| 4641 | uint32_t typeIndex, |
| 4642 | MDefinition* numElements, |
| 4643 | uint32_t elemSize, |
| 4644 | bool zeroFields) { |
| 4645 | // Get the type definition for the array as a whole. |
| 4646 | MDefinition* typeDefData = loadTypeDefInstanceData(typeIndex); |
| 4647 | if (!typeDefData) { |
| 4648 | return nullptr; |
| 4649 | } |
| 4650 | |
| 4651 | auto* arrayObject = MWasmNewArrayObject::New( |
| 4652 | alloc(), instancePointer_, numElements, typeDefData, elemSize, |
| 4653 | zeroFields, bytecodeOffset()); |
| 4654 | if (!arrayObject) { |
| 4655 | return nullptr; |
| 4656 | } |
| 4657 | curBlock_->add(arrayObject); |
| 4658 | |
| 4659 | return arrayObject; |
| 4660 | } |
| 4661 | |
| 4662 | // This emits MIR to perform several actions common to array loads and |
| 4663 | // stores. Given `arrayObject`, that points to a WasmArrayObject, and an |
| 4664 | // index value `index`, it: |
| 4665 | // |
| 4666 | // * Generates a trap if the array pointer is null |
| 4667 | // * Gets the size of the array |
| 4668 | // * Emits a bounds check of `index` against the array size |
| 4669 | // * Retrieves the OOL object pointer from the array |
| 4670 | // * Includes check for null via signal handler. |
| 4671 | // |
| 4672 | // The returned value is for the OOL object pointer. |
| 4673 | [[nodiscard]] MDefinition* setupForArrayAccess(MDefinition* arrayObject, |
| 4674 | MDefinition* index) { |
| 4675 | MOZ_ASSERT(arrayObject->type() == MIRType::WasmAnyRef)do { static_assert( mozilla::detail::AssertionConditionType< decltype(arrayObject->type() == MIRType::WasmAnyRef)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(arrayObject->type() == MIRType::WasmAnyRef))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("arrayObject->type() == MIRType::WasmAnyRef" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4675); AnnotateMozCrashReason("MOZ_ASSERT" "(" "arrayObject->type() == MIRType::WasmAnyRef" ")"); do { *((volatile int*)__null) = 4675; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4676 | MOZ_ASSERT(index->type() == MIRType::Int32)do { static_assert( mozilla::detail::AssertionConditionType< decltype(index->type() == MIRType::Int32)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(index->type() == MIRType:: Int32))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("index->type() == MIRType::Int32", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4676); AnnotateMozCrashReason("MOZ_ASSERT" "(" "index->type() == MIRType::Int32" ")"); do { *((volatile int*)__null) = 4676; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4677 | |
| 4678 | // Check for null is done in getWasmArrayObjectNumElements. |
| 4679 | |
| 4680 | // Get the size value for the array. |
| 4681 | MDefinition* numElements = getWasmArrayObjectNumElements(arrayObject); |
| 4682 | if (!numElements) { |
| 4683 | return nullptr; |
| 4684 | } |
| 4685 | |
| 4686 | // Create a bounds check. |
| 4687 | auto* boundsCheck = |
| 4688 | MWasmBoundsCheck::New(alloc(), index, numElements, bytecodeOffset(), |
| 4689 | MWasmBoundsCheck::Target::Unknown); |
| 4690 | if (!boundsCheck) { |
| 4691 | return nullptr; |
| 4692 | } |
| 4693 | curBlock_->add(boundsCheck); |
| 4694 | |
| 4695 | // Get the address of the first byte of the (OOL) data area. |
| 4696 | return getWasmArrayObjectData(arrayObject); |
| 4697 | } |
| 4698 | |
| 4699 | [[nodiscard]] bool fillArray(uint32_t lineOrBytecode, |
| 4700 | const ArrayType& arrayType, |
| 4701 | MDefinition* arrayObject, MDefinition* index, |
| 4702 | MDefinition* numElements, MDefinition* val, |
| 4703 | WasmPreBarrierKind preBarrierKind) { |
| 4704 | mozilla::DebugOnly<MIRType> valMIRType = val->type(); |
| 4705 | StorageType elemType = arrayType.elementType_; |
| 4706 | MOZ_ASSERT(elemType.widenToValType().toMIRType() == valMIRType)do { static_assert( mozilla::detail::AssertionConditionType< decltype(elemType.widenToValType().toMIRType() == valMIRType) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(elemType.widenToValType().toMIRType() == valMIRType) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("elemType.widenToValType().toMIRType() == valMIRType" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4706); AnnotateMozCrashReason("MOZ_ASSERT" "(" "elemType.widenToValType().toMIRType() == valMIRType" ")"); do { *((volatile int*)__null) = 4706; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4707 | |
| 4708 | uint32_t elemSize = elemType.size(); |
| 4709 | MOZ_ASSERT(elemSize >= 1 && elemSize <= 16)do { static_assert( mozilla::detail::AssertionConditionType< decltype(elemSize >= 1 && elemSize <= 16)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(elemSize >= 1 && elemSize <= 16))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("elemSize >= 1 && elemSize <= 16" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4709); AnnotateMozCrashReason("MOZ_ASSERT" "(" "elemSize >= 1 && elemSize <= 16" ")"); do { *((volatile int*)__null) = 4709; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4710 | |
| 4711 | // Make `arrayBase` point at the first byte of the (OOL) data area. |
| 4712 | MDefinition* arrayBase = getWasmArrayObjectData(arrayObject); |
| 4713 | if (!arrayBase) { |
| 4714 | return false; |
| 4715 | } |
| 4716 | |
| 4717 | // We have: |
| 4718 | // arrayBase : TargetWord |
| 4719 | // index : Int32 |
| 4720 | // numElements : Int32 |
| 4721 | // val : <any StorageType> |
| 4722 | // $elemSize = arrayType.elementType_.size(); 1, 2, 4, 8 or 16 |
| 4723 | // |
| 4724 | // Generate MIR: |
| 4725 | // <in current block> |
| 4726 | // limit : Int32 = index + numElements |
| 4727 | // if (limit == index) goto after; // skip loop if trip count == 0 |
| 4728 | // loop: |
| 4729 | // indexPhi = phi(index, indexNext) |
| 4730 | // arrayBase[index * $elemSize] = val |
| 4731 | // indexNext = indexPhi + 1 |
| 4732 | // if (indexNext <u limit) goto loop; |
| 4733 | // after: |
| 4734 | // |
| 4735 | // We construct the loop "manually" rather than using |
| 4736 | // FunctionCompiler::{startLoop,closeLoop} as the latter have awareness of |
| 4737 | // the wasm view of loops, whereas the loop we're building here is not a |
| 4738 | // wasm-level loop. |
| 4739 | // ==== Create the "loop" and "after" blocks ==== |
| 4740 | MBasicBlock* loopBlock; |
| 4741 | if (!newBlock(curBlock_, &loopBlock, MBasicBlock::LOOP_HEADER)) { |
| 4742 | return false; |
| 4743 | } |
| 4744 | MBasicBlock* afterBlock; |
| 4745 | if (!newBlock(loopBlock, &afterBlock)) { |
| 4746 | return false; |
| 4747 | } |
| 4748 | |
| 4749 | // ==== Fill in the remainder of the block preceding the loop ==== |
| 4750 | MAdd* limit = MAdd::NewWasm(alloc(), index, numElements, MIRType::Int32); |
| 4751 | if (!limit) { |
| 4752 | return false; |
| 4753 | } |
| 4754 | curBlock_->add(limit); |
| 4755 | |
| 4756 | // Use JSOp::StrictEq, not ::Eq, so that the comparison (and eventually |
| 4757 | // the entire initialisation loop) will be folded out in the case where |
| 4758 | // the number of elements is zero. See MCompare::tryFoldEqualOperands. |
| 4759 | MDefinition* limitEqualsBase = |
| 4760 | compare(limit, index, JSOp::StrictEq, MCompare::Compare_UInt32); |
| 4761 | if (!limitEqualsBase) { |
| 4762 | return false; |
| 4763 | } |
| 4764 | MTest* skipIfLimitEqualsBase = |
| 4765 | MTest::New(alloc(), limitEqualsBase, afterBlock, loopBlock); |
| 4766 | if (!skipIfLimitEqualsBase) { |
| 4767 | return false; |
| 4768 | } |
| 4769 | curBlock_->end(skipIfLimitEqualsBase); |
| 4770 | if (!afterBlock->addPredecessor(alloc(), curBlock_)) { |
| 4771 | return false; |
| 4772 | } |
| 4773 | |
| 4774 | // ==== Fill in the loop block as best we can ==== |
| 4775 | curBlock_ = loopBlock; |
| 4776 | MPhi* indexPhi = MPhi::New(alloc(), MIRType::Int32); |
| 4777 | if (!indexPhi) { |
| 4778 | return false; |
| 4779 | } |
| 4780 | if (!indexPhi->reserveLength(2)) { |
| 4781 | return false; |
| 4782 | } |
| 4783 | indexPhi->addInput(index); |
| 4784 | curBlock_->addPhi(indexPhi); |
| 4785 | curBlock_->setLoopDepth(loopDepth_ + 1); |
| 4786 | |
| 4787 | if (!writeGcValueAtBasePlusScaledIndex( |
| 4788 | lineOrBytecode, elemType, arrayObject, AliasSet::WasmArrayDataArea, |
| 4789 | val, arrayBase, elemSize, indexPhi, preBarrierKind)) { |
| 4790 | return false; |
| 4791 | } |
| 4792 | |
| 4793 | auto* indexNext = |
| 4794 | MAdd::NewWasm(alloc(), indexPhi, constantI32(1), MIRType::Int32); |
| 4795 | if (!indexNext) { |
| 4796 | return false; |
| 4797 | } |
| 4798 | curBlock_->add(indexNext); |
| 4799 | indexPhi->addInput(indexNext); |
| 4800 | |
| 4801 | MDefinition* indexNextLtuLimit = |
| 4802 | compare(indexNext, limit, JSOp::Lt, MCompare::Compare_UInt32); |
| 4803 | if (!indexNextLtuLimit) { |
| 4804 | return false; |
| 4805 | } |
| 4806 | auto* continueIfIndexNextLtuLimit = |
| 4807 | MTest::New(alloc(), indexNextLtuLimit, loopBlock, afterBlock); |
| 4808 | if (!continueIfIndexNextLtuLimit) { |
| 4809 | return false; |
| 4810 | } |
| 4811 | curBlock_->end(continueIfIndexNextLtuLimit); |
| 4812 | if (!loopBlock->addPredecessor(alloc(), loopBlock)) { |
| 4813 | return false; |
| 4814 | } |
| 4815 | // ==== Loop block completed ==== |
| 4816 | |
| 4817 | curBlock_ = afterBlock; |
| 4818 | return true; |
| 4819 | } |
| 4820 | |
| 4821 | // This routine generates all MIR required for `array.new`. The returned |
| 4822 | // value is for the newly created array. |
| 4823 | [[nodiscard]] MDefinition* createArrayNewCallAndLoop(uint32_t lineOrBytecode, |
| 4824 | uint32_t typeIndex, |
| 4825 | MDefinition* numElements, |
| 4826 | MDefinition* fillValue) { |
| 4827 | const ArrayType& arrayType = (*codeMeta_.types)[typeIndex].arrayType(); |
| 4828 | |
| 4829 | // Create the array object, uninitialized. |
| 4830 | MDefinition* arrayObject = |
| 4831 | createArrayObject(lineOrBytecode, typeIndex, numElements, |
| 4832 | arrayType.elementType_.size(), /*zeroFields=*/false); |
| 4833 | if (!arrayObject) { |
| 4834 | return nullptr; |
| 4835 | } |
| 4836 | |
| 4837 | // Optimisation opportunity: if the fill value is zero, maybe we should |
| 4838 | // likewise skip over the initialisation loop entirely (and, if the zero |
| 4839 | // value is visible at JIT time, the loop will be removed). For the |
| 4840 | // reftyped case, that would be a big win since each iteration requires a |
| 4841 | // call to the post-write barrier routine. |
| 4842 | |
| 4843 | if (!fillArray(lineOrBytecode, arrayType, arrayObject, constantI32(0), |
| 4844 | numElements, fillValue, WasmPreBarrierKind::None)) { |
| 4845 | return nullptr; |
| 4846 | } |
| 4847 | |
| 4848 | return arrayObject; |
| 4849 | } |
| 4850 | |
| 4851 | [[nodiscard]] bool createArrayFill(uint32_t lineOrBytecode, |
| 4852 | uint32_t typeIndex, |
| 4853 | MDefinition* arrayObject, |
| 4854 | MDefinition* index, MDefinition* val, |
| 4855 | MDefinition* numElements) { |
| 4856 | MOZ_ASSERT(arrayObject->type() == MIRType::WasmAnyRef)do { static_assert( mozilla::detail::AssertionConditionType< decltype(arrayObject->type() == MIRType::WasmAnyRef)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(arrayObject->type() == MIRType::WasmAnyRef))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("arrayObject->type() == MIRType::WasmAnyRef" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4856); AnnotateMozCrashReason("MOZ_ASSERT" "(" "arrayObject->type() == MIRType::WasmAnyRef" ")"); do { *((volatile int*)__null) = 4856; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4857 | MOZ_ASSERT(index->type() == MIRType::Int32)do { static_assert( mozilla::detail::AssertionConditionType< decltype(index->type() == MIRType::Int32)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(index->type() == MIRType:: Int32))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("index->type() == MIRType::Int32", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4857); AnnotateMozCrashReason("MOZ_ASSERT" "(" "index->type() == MIRType::Int32" ")"); do { *((volatile int*)__null) = 4857; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4858 | MOZ_ASSERT(numElements->type() == MIRType::Int32)do { static_assert( mozilla::detail::AssertionConditionType< decltype(numElements->type() == MIRType::Int32)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(numElements->type() == MIRType::Int32))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("numElements->type() == MIRType::Int32" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4858); AnnotateMozCrashReason("MOZ_ASSERT" "(" "numElements->type() == MIRType::Int32" ")"); do { *((volatile int*)__null) = 4858; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4859 | |
| 4860 | const ArrayType& arrayType = (*codeMeta_.types)[typeIndex].arrayType(); |
| 4861 | |
| 4862 | // Check for null is done in getWasmArrayObjectNumElements. |
| 4863 | |
| 4864 | // Get the array's actual size. |
| 4865 | MDefinition* actualNumElements = getWasmArrayObjectNumElements(arrayObject); |
| 4866 | if (!actualNumElements) { |
| 4867 | return false; |
| 4868 | } |
| 4869 | |
| 4870 | // Create a bounds check. |
| 4871 | auto* boundsCheck = MWasmBoundsCheckRange32::New( |
| 4872 | alloc(), index, numElements, actualNumElements, bytecodeOffset()); |
| 4873 | if (!boundsCheck) { |
| 4874 | return false; |
| 4875 | } |
| 4876 | curBlock_->add(boundsCheck); |
| 4877 | |
| 4878 | return fillArray(lineOrBytecode, arrayType, arrayObject, index, numElements, |
| 4879 | val, WasmPreBarrierKind::Normal); |
| 4880 | } |
| 4881 | |
| 4882 | /*********************************************** WasmGC: other helpers ***/ |
| 4883 | |
| 4884 | // Generate MIR that causes a trap of kind `trapKind` if `arg` is zero. |
| 4885 | // Currently `arg` may only be a MIRType::Int32, but that requirement could |
| 4886 | // be relaxed if needed in future. |
| 4887 | [[nodiscard]] bool trapIfZero(wasm::Trap trapKind, MDefinition* arg) { |
| 4888 | MOZ_ASSERT(arg->type() == MIRType::Int32)do { static_assert( mozilla::detail::AssertionConditionType< decltype(arg->type() == MIRType::Int32)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(arg->type() == MIRType::Int32 ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "arg->type() == MIRType::Int32", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4888); AnnotateMozCrashReason("MOZ_ASSERT" "(" "arg->type() == MIRType::Int32" ")"); do { *((volatile int*)__null) = 4888; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4889 | |
| 4890 | MBasicBlock* trapBlock = nullptr; |
| 4891 | if (!newBlock(curBlock_, &trapBlock)) { |
| 4892 | return false; |
| 4893 | } |
| 4894 | |
| 4895 | auto* trap = MWasmTrap::New(alloc(), trapKind, bytecodeOffset()); |
| 4896 | if (!trap) { |
| 4897 | return false; |
| 4898 | } |
| 4899 | trapBlock->end(trap); |
| 4900 | |
| 4901 | MBasicBlock* joinBlock = nullptr; |
| 4902 | if (!newBlock(curBlock_, &joinBlock)) { |
| 4903 | return false; |
| 4904 | } |
| 4905 | |
| 4906 | auto* test = MTest::New(alloc(), arg, joinBlock, trapBlock); |
| 4907 | if (!test) { |
| 4908 | return false; |
| 4909 | } |
| 4910 | curBlock_->end(test); |
| 4911 | curBlock_ = joinBlock; |
| 4912 | return true; |
| 4913 | } |
| 4914 | |
| 4915 | [[nodiscard]] MDefinition* isRefSubtypeOf(MDefinition* ref, |
| 4916 | RefType sourceType, |
| 4917 | RefType destType) { |
| 4918 | MInstruction* isSubTypeOf = nullptr; |
| 4919 | if (destType.isTypeRef()) { |
| 4920 | uint32_t typeIndex = codeMeta_.types->indexOf(*destType.typeDef()); |
| 4921 | MDefinition* superSTV = loadSuperTypeVector(typeIndex); |
| 4922 | isSubTypeOf = MWasmRefIsSubtypeOfConcrete::New(alloc(), ref, superSTV, |
| 4923 | sourceType, destType); |
| 4924 | } else { |
| 4925 | isSubTypeOf = |
| 4926 | MWasmRefIsSubtypeOfAbstract::New(alloc(), ref, sourceType, destType); |
| 4927 | } |
| 4928 | MOZ_ASSERT(isSubTypeOf)do { static_assert( mozilla::detail::AssertionConditionType< decltype(isSubTypeOf)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(isSubTypeOf))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("isSubTypeOf", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4928); AnnotateMozCrashReason("MOZ_ASSERT" "(" "isSubTypeOf" ")"); do { *((volatile int*)__null) = 4928; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4929 | |
| 4930 | curBlock_->add(isSubTypeOf); |
| 4931 | return isSubTypeOf; |
| 4932 | } |
| 4933 | |
| 4934 | // Generate MIR that attempts to downcast `ref` to `castToTypeDef`. If the |
| 4935 | // downcast fails, we trap. If it succeeds, then `ref` can be assumed to |
| 4936 | // have a type that is a subtype of (or the same as) `castToTypeDef` after |
| 4937 | // this point. |
| 4938 | [[nodiscard]] bool refCast(MDefinition* ref, RefType sourceType, |
| 4939 | RefType destType) { |
| 4940 | MDefinition* success = isRefSubtypeOf(ref, sourceType, destType); |
| 4941 | if (!success) { |
| 4942 | return false; |
| 4943 | } |
| 4944 | |
| 4945 | // Trap if `success` is zero. If it's nonzero, we have established that |
| 4946 | // `ref <: castToTypeDef`. |
| 4947 | return trapIfZero(wasm::Trap::BadCast, success); |
| 4948 | } |
| 4949 | |
| 4950 | // Generate MIR that computes a boolean value indicating whether or not it |
| 4951 | // is possible to downcast `ref` to `destType`. |
| 4952 | [[nodiscard]] MDefinition* refTest(MDefinition* ref, RefType sourceType, |
| 4953 | RefType destType) { |
| 4954 | return isRefSubtypeOf(ref, sourceType, destType); |
| 4955 | } |
| 4956 | |
| 4957 | // Generates MIR for br_on_cast and br_on_cast_fail. |
| 4958 | [[nodiscard]] bool brOnCastCommon(bool onSuccess, uint32_t labelRelativeDepth, |
| 4959 | RefType sourceType, RefType destType, |
| 4960 | const ResultType& labelType, |
| 4961 | const DefVector& values) { |
| 4962 | if (inDeadCode()) { |
| 4963 | return true; |
| 4964 | } |
| 4965 | |
| 4966 | MBasicBlock* fallthroughBlock = nullptr; |
| 4967 | if (!newBlock(curBlock_, &fallthroughBlock)) { |
| 4968 | return false; |
| 4969 | } |
| 4970 | |
| 4971 | // `values` are the values in the top block-value on the stack. Since the |
| 4972 | // argument to `br_on_cast{_fail}` is at the top of the stack, it is the |
| 4973 | // last element in `values`. |
| 4974 | // |
| 4975 | // For both br_on_cast and br_on_cast_fail, the OpIter validation routines |
| 4976 | // ensure that `values` is non-empty (by rejecting the case |
| 4977 | // `labelType->length() < 1`) and that the last value in `values` is |
| 4978 | // reftyped. |
| 4979 | MOZ_RELEASE_ASSERT(values.length() > 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(values.length() > 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(values.length() > 0))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("values.length() > 0" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4979); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "values.length() > 0" ")"); do { *((volatile int*)__null) = 4979; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4980 | MDefinition* ref = values.back(); |
| 4981 | MOZ_ASSERT(ref->type() == MIRType::WasmAnyRef)do { static_assert( mozilla::detail::AssertionConditionType< decltype(ref->type() == MIRType::WasmAnyRef)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(ref->type() == MIRType::WasmAnyRef))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("ref->type() == MIRType::WasmAnyRef" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 4981); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ref->type() == MIRType::WasmAnyRef" ")"); do { *((volatile int*)__null) = 4981; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4982 | |
| 4983 | MDefinition* success = isRefSubtypeOf(ref, sourceType, destType); |
| 4984 | if (!success) { |
| 4985 | return false; |
| 4986 | } |
| 4987 | |
| 4988 | MTest* test; |
| 4989 | if (onSuccess) { |
| 4990 | test = MTest::New(alloc(), success, nullptr, fallthroughBlock); |
| 4991 | if (!test || !addControlFlowPatch(test, labelRelativeDepth, |
| 4992 | MTest::TrueBranchIndex)) { |
| 4993 | return false; |
| 4994 | } |
| 4995 | } else { |
| 4996 | test = MTest::New(alloc(), success, fallthroughBlock, nullptr); |
| 4997 | if (!test || !addControlFlowPatch(test, labelRelativeDepth, |
| 4998 | MTest::FalseBranchIndex)) { |
| 4999 | return false; |
| 5000 | } |
| 5001 | } |
| 5002 | |
| 5003 | if (!pushDefs(values)) { |
| 5004 | return false; |
| 5005 | } |
| 5006 | |
| 5007 | curBlock_->end(test); |
| 5008 | curBlock_ = fallthroughBlock; |
| 5009 | return true; |
| 5010 | } |
| 5011 | |
| 5012 | [[nodiscard]] bool brOnNonStruct(const DefVector& values) { |
| 5013 | if (inDeadCode()) { |
| 5014 | return true; |
| 5015 | } |
| 5016 | |
| 5017 | MBasicBlock* fallthroughBlock = nullptr; |
| 5018 | if (!newBlock(curBlock_, &fallthroughBlock)) { |
| 5019 | return false; |
| 5020 | } |
| 5021 | |
| 5022 | MOZ_ASSERT(values.length() > 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(values.length() > 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(values.length() > 0))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("values.length() > 0" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5022); AnnotateMozCrashReason("MOZ_ASSERT" "(" "values.length() > 0" ")"); do { *((volatile int*)__null) = 5022; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5023 | MOZ_ASSERT(values.back()->type() == MIRType::WasmAnyRef)do { static_assert( mozilla::detail::AssertionConditionType< decltype(values.back()->type() == MIRType::WasmAnyRef)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(values.back()->type() == MIRType::WasmAnyRef))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("values.back()->type() == MIRType::WasmAnyRef" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5023); AnnotateMozCrashReason("MOZ_ASSERT" "(" "values.back()->type() == MIRType::WasmAnyRef" ")"); do { *((volatile int*)__null) = 5023; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5024 | |
| 5025 | MGoto* jump = MGoto::New(alloc(), fallthroughBlock); |
| 5026 | if (!jump) { |
| 5027 | return false; |
| 5028 | } |
| 5029 | if (!pushDefs(values)) { |
| 5030 | return false; |
| 5031 | } |
| 5032 | |
| 5033 | curBlock_->end(jump); |
| 5034 | curBlock_ = fallthroughBlock; |
| 5035 | return true; |
| 5036 | } |
| 5037 | |
| 5038 | /************************************************************ DECODING ***/ |
| 5039 | |
| 5040 | // AsmJS adds a line number to `callSiteLineNums` for certain operations that |
| 5041 | // are represented by a JS call, such as math builtins. We use these line |
| 5042 | // numbers when calling builtins. This method will read from |
| 5043 | // `callSiteLineNums` when we are using AsmJS, or else return the current |
| 5044 | // bytecode offset. |
| 5045 | // |
| 5046 | // This method MUST be called from opcodes that AsmJS will emit a call site |
| 5047 | // line number for, or else the arrays will get out of sync. Other opcodes |
| 5048 | // must use `readBytecodeOffset` below. |
| 5049 | uint32_t readCallSiteLineOrBytecode() { |
| 5050 | if (!func_.callSiteLineNums.empty()) { |
| 5051 | return func_.callSiteLineNums[lastReadCallSite_++]; |
| 5052 | } |
| 5053 | return iter_.lastOpcodeOffset(); |
| 5054 | } |
| 5055 | |
| 5056 | // Return the current bytecode offset. |
| 5057 | uint32_t readBytecodeOffset() { return iter_.lastOpcodeOffset(); } |
| 5058 | |
| 5059 | TrapSiteInfo getTrapSiteInfo() { |
| 5060 | return TrapSiteInfo(wasm::BytecodeOffset(readBytecodeOffset())); |
| 5061 | } |
| 5062 | |
| 5063 | #if DEBUG1 |
| 5064 | bool done() const { return iter_.done(); } |
| 5065 | #endif |
| 5066 | |
| 5067 | /*************************************************************************/ |
| 5068 | private: |
| 5069 | [[nodiscard]] bool newBlock(MBasicBlock* pred, MBasicBlock** block, |
| 5070 | MBasicBlock::Kind kind = MBasicBlock::NORMAL) { |
| 5071 | *block = MBasicBlock::New(mirGraph(), info(), pred, kind); |
| 5072 | if (!*block) { |
| 5073 | return false; |
| 5074 | } |
| 5075 | mirGraph().addBlock(*block); |
| 5076 | (*block)->setLoopDepth(loopDepth_); |
| 5077 | return true; |
| 5078 | } |
| 5079 | |
| 5080 | [[nodiscard]] bool goToNewBlock(MBasicBlock* pred, MBasicBlock** block) { |
| 5081 | if (!newBlock(pred, block)) { |
| 5082 | return false; |
| 5083 | } |
| 5084 | pred->end(MGoto::New(alloc(), *block)); |
| 5085 | return true; |
| 5086 | } |
| 5087 | |
| 5088 | [[nodiscard]] bool goToExistingBlock(MBasicBlock* prev, MBasicBlock* next) { |
| 5089 | MOZ_ASSERT(prev)do { static_assert( mozilla::detail::AssertionConditionType< decltype(prev)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(prev))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("prev", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5089); AnnotateMozCrashReason("MOZ_ASSERT" "(" "prev" ")"); do { *((volatile int*)__null) = 5089; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5090 | MOZ_ASSERT(next)do { static_assert( mozilla::detail::AssertionConditionType< decltype(next)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(next))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("next", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5090); AnnotateMozCrashReason("MOZ_ASSERT" "(" "next" ")"); do { *((volatile int*)__null) = 5090; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5091 | prev->end(MGoto::New(alloc(), next)); |
| 5092 | return next->addPredecessor(alloc(), prev); |
| 5093 | } |
| 5094 | |
| 5095 | [[nodiscard]] bool bindBranches(uint32_t absolute, DefVector* defs) { |
| 5096 | if (absolute >= pendingBlocks_.length() || |
| 5097 | pendingBlocks_[absolute].patches.empty()) { |
| 5098 | return inDeadCode() || popPushedDefs(defs); |
| 5099 | } |
| 5100 | |
| 5101 | ControlFlowPatchVector& patches = pendingBlocks_[absolute].patches; |
| 5102 | MControlInstruction* ins = patches[0].ins; |
| 5103 | MBasicBlock* pred = ins->block(); |
| 5104 | |
| 5105 | MBasicBlock* join = nullptr; |
| 5106 | if (!newBlock(pred, &join)) { |
| 5107 | return false; |
| 5108 | } |
| 5109 | |
| 5110 | // Use branch hinting information if any. |
| 5111 | if (pendingBlocks_[absolute].hint != BranchHint::Invalid) { |
| 5112 | join->setBranchHinting(pendingBlocks_[absolute].hint); |
| 5113 | } |
| 5114 | |
| 5115 | pred->mark(); |
| 5116 | ins->replaceSuccessor(patches[0].index, join); |
| 5117 | |
| 5118 | for (size_t i = 1; i < patches.length(); i++) { |
| 5119 | ins = patches[i].ins; |
| 5120 | |
| 5121 | pred = ins->block(); |
| 5122 | if (!pred->isMarked()) { |
| 5123 | if (!join->addPredecessor(alloc(), pred)) { |
| 5124 | return false; |
| 5125 | } |
| 5126 | pred->mark(); |
| 5127 | } |
| 5128 | |
| 5129 | ins->replaceSuccessor(patches[i].index, join); |
| 5130 | } |
| 5131 | |
| 5132 | MOZ_ASSERT_IF(curBlock_, !curBlock_->isMarked())do { if (curBlock_) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(!curBlock_->isMarked())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!curBlock_->isMarked()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("!curBlock_->isMarked()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5132); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!curBlock_->isMarked()" ")"); do { *((volatile int*)__null) = 5132; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 5133 | for (uint32_t i = 0; i < join->numPredecessors(); i++) { |
| 5134 | join->getPredecessor(i)->unmark(); |
| 5135 | } |
| 5136 | |
| 5137 | if (curBlock_ && !goToExistingBlock(curBlock_, join)) { |
| 5138 | return false; |
| 5139 | } |
| 5140 | |
| 5141 | curBlock_ = join; |
| 5142 | |
| 5143 | if (!popPushedDefs(defs)) { |
| 5144 | return false; |
| 5145 | } |
| 5146 | |
| 5147 | patches.clear(); |
| 5148 | return true; |
| 5149 | } |
| 5150 | }; |
| 5151 | |
| 5152 | template <> |
| 5153 | MDefinition* FunctionCompiler::unary<MToFloat32>(MDefinition* op) { |
| 5154 | if (inDeadCode()) { |
| 5155 | return nullptr; |
| 5156 | } |
| 5157 | auto* ins = MToFloat32::New(alloc(), op, mustPreserveNaN(op->type())); |
| 5158 | curBlock_->add(ins); |
| 5159 | return ins; |
| 5160 | } |
| 5161 | |
| 5162 | template <> |
| 5163 | MDefinition* FunctionCompiler::unary<MWasmBuiltinTruncateToInt32>( |
| 5164 | MDefinition* op) { |
| 5165 | if (inDeadCode()) { |
| 5166 | return nullptr; |
| 5167 | } |
| 5168 | auto* ins = MWasmBuiltinTruncateToInt32::New( |
| 5169 | alloc(), op, instancePointer_, |
| 5170 | BytecodeOffset(readCallSiteLineOrBytecode())); |
| 5171 | curBlock_->add(ins); |
| 5172 | return ins; |
| 5173 | } |
| 5174 | |
| 5175 | template <> |
| 5176 | MDefinition* FunctionCompiler::unary<MNot>(MDefinition* op) { |
| 5177 | if (inDeadCode()) { |
| 5178 | return nullptr; |
| 5179 | } |
| 5180 | auto* ins = MNot::NewInt32(alloc(), op); |
| 5181 | curBlock_->add(ins); |
| 5182 | return ins; |
| 5183 | } |
| 5184 | |
| 5185 | template <> |
| 5186 | MDefinition* FunctionCompiler::unary<MAbs>(MDefinition* op, MIRType type) { |
| 5187 | if (inDeadCode()) { |
| 5188 | return nullptr; |
| 5189 | } |
| 5190 | auto* ins = MAbs::NewWasm(alloc(), op, type); |
| 5191 | curBlock_->add(ins); |
| 5192 | return ins; |
| 5193 | } |
| 5194 | |
| 5195 | } // end anonymous namespace |
| 5196 | |
| 5197 | bool EmitBodyExprs(FunctionCompiler& f); |
| 5198 | |
| 5199 | static bool EmitI32Const(FunctionCompiler& f) { |
| 5200 | int32_t i32; |
| 5201 | if (!f.iter().readI32Const(&i32)) { |
| 5202 | return false; |
| 5203 | } |
| 5204 | |
| 5205 | f.iter().setResult(f.constantI32(i32)); |
| 5206 | return true; |
| 5207 | } |
| 5208 | |
| 5209 | static bool EmitI64Const(FunctionCompiler& f) { |
| 5210 | int64_t i64; |
| 5211 | if (!f.iter().readI64Const(&i64)) { |
| 5212 | return false; |
| 5213 | } |
| 5214 | |
| 5215 | f.iter().setResult(f.constantI64(i64)); |
| 5216 | return true; |
| 5217 | } |
| 5218 | |
| 5219 | static bool EmitF32Const(FunctionCompiler& f) { |
| 5220 | float f32; |
| 5221 | if (!f.iter().readF32Const(&f32)) { |
| 5222 | return false; |
| 5223 | } |
| 5224 | |
| 5225 | f.iter().setResult(f.constantF32(f32)); |
| 5226 | return true; |
| 5227 | } |
| 5228 | |
| 5229 | static bool EmitF64Const(FunctionCompiler& f) { |
| 5230 | double f64; |
| 5231 | if (!f.iter().readF64Const(&f64)) { |
| 5232 | return false; |
| 5233 | } |
| 5234 | |
| 5235 | f.iter().setResult(f.constantF64(f64)); |
| 5236 | return true; |
| 5237 | } |
| 5238 | |
| 5239 | static bool EmitBlock(FunctionCompiler& f) { |
| 5240 | ResultType params; |
| 5241 | return f.iter().readBlock(¶ms) && f.startBlock(); |
| 5242 | } |
| 5243 | |
| 5244 | static bool EmitLoop(FunctionCompiler& f) { |
| 5245 | ResultType params; |
| 5246 | if (!f.iter().readLoop(¶ms)) { |
| 5247 | return false; |
| 5248 | } |
| 5249 | |
| 5250 | MBasicBlock* loopHeader; |
| 5251 | if (!f.startLoop(&loopHeader, params.length())) { |
| 5252 | return false; |
| 5253 | } |
| 5254 | |
| 5255 | f.addInterruptCheck(); |
| 5256 | |
| 5257 | f.iter().controlItem().block = loopHeader; |
| 5258 | return true; |
| 5259 | } |
| 5260 | |
| 5261 | static bool EmitIf(FunctionCompiler& f) { |
| 5262 | BranchHint branchHint = |
| 5263 | f.iter().getBranchHint(f.funcIndex(), f.relativeBytecodeOffset()); |
| 5264 | |
| 5265 | ResultType params; |
| 5266 | MDefinition* condition = nullptr; |
| 5267 | if (!f.iter().readIf(¶ms, &condition)) { |
| 5268 | return false; |
| 5269 | } |
| 5270 | |
| 5271 | MBasicBlock* elseBlock; |
| 5272 | if (!f.branchAndStartThen(condition, &elseBlock)) { |
| 5273 | return false; |
| 5274 | } |
| 5275 | |
| 5276 | // Store the branch hint in the basic block. |
| 5277 | if (!f.inDeadCode() && branchHint != BranchHint::Invalid) { |
| 5278 | f.getCurBlock()->setBranchHinting(branchHint); |
| 5279 | } |
| 5280 | |
| 5281 | f.iter().controlItem().block = elseBlock; |
| 5282 | return true; |
| 5283 | } |
| 5284 | |
| 5285 | static bool EmitElse(FunctionCompiler& f) { |
| 5286 | ResultType paramType; |
| 5287 | ResultType resultType; |
| 5288 | DefVector thenValues; |
| 5289 | if (!f.iter().readElse(¶mType, &resultType, &thenValues)) { |
| 5290 | return false; |
| 5291 | } |
| 5292 | |
| 5293 | if (!f.pushDefs(thenValues)) { |
| 5294 | return false; |
| 5295 | } |
| 5296 | |
| 5297 | Control& control = f.iter().controlItem(); |
| 5298 | return f.switchToElse(control.block, &control.block); |
| 5299 | } |
| 5300 | |
| 5301 | static bool EmitEnd(FunctionCompiler& f) { |
| 5302 | LabelKind kind; |
| 5303 | ResultType type; |
| 5304 | DefVector preJoinDefs; |
| 5305 | DefVector resultsForEmptyElse; |
| 5306 | if (!f.iter().readEnd(&kind, &type, &preJoinDefs, &resultsForEmptyElse)) { |
| 5307 | return false; |
| 5308 | } |
| 5309 | |
| 5310 | Control& control = f.iter().controlItem(); |
| 5311 | MBasicBlock* block = control.block; |
| 5312 | |
| 5313 | if (!f.pushDefs(preJoinDefs)) { |
| 5314 | return false; |
| 5315 | } |
| 5316 | |
| 5317 | // Every label case is responsible to pop the control item at the appropriate |
| 5318 | // time for the label case |
| 5319 | DefVector postJoinDefs; |
| 5320 | switch (kind) { |
| 5321 | case LabelKind::Body: { |
| 5322 | MOZ_ASSERT(!control.tryControl)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!control.tryControl)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!control.tryControl))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!control.tryControl" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5322); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!control.tryControl" ")"); do { *((volatile int*)__null) = 5322; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5323 | if (!f.emitBodyDelegateThrowPad(control)) { |
| 5324 | return false; |
| 5325 | } |
| 5326 | if (!f.finishBlock(&postJoinDefs)) { |
| 5327 | return false; |
| 5328 | } |
| 5329 | if (!f.returnValues(std::move(postJoinDefs))) { |
| 5330 | return false; |
| 5331 | } |
| 5332 | f.iter().popEnd(); |
| 5333 | MOZ_ASSERT(f.iter().controlStackEmpty())do { static_assert( mozilla::detail::AssertionConditionType< decltype(f.iter().controlStackEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(f.iter().controlStackEmpty() ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "f.iter().controlStackEmpty()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5333); AnnotateMozCrashReason("MOZ_ASSERT" "(" "f.iter().controlStackEmpty()" ")"); do { *((volatile int*)__null) = 5333; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5334 | return f.iter().endFunction(f.iter().end()); |
| 5335 | } |
| 5336 | case LabelKind::Block: |
| 5337 | MOZ_ASSERT(!control.tryControl)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!control.tryControl)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!control.tryControl))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!control.tryControl" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5337); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!control.tryControl" ")"); do { *((volatile int*)__null) = 5337; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5338 | if (!f.finishBlock(&postJoinDefs)) { |
| 5339 | return false; |
| 5340 | } |
| 5341 | f.iter().popEnd(); |
| 5342 | break; |
| 5343 | case LabelKind::Loop: |
| 5344 | MOZ_ASSERT(!control.tryControl)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!control.tryControl)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!control.tryControl))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!control.tryControl" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5344); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!control.tryControl" ")"); do { *((volatile int*)__null) = 5344; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5345 | if (!f.closeLoop(block, &postJoinDefs)) { |
| 5346 | return false; |
| 5347 | } |
| 5348 | f.iter().popEnd(); |
| 5349 | break; |
| 5350 | case LabelKind::Then: { |
| 5351 | MOZ_ASSERT(!control.tryControl)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!control.tryControl)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!control.tryControl))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!control.tryControl" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5351); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!control.tryControl" ")"); do { *((volatile int*)__null) = 5351; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5352 | // If we didn't see an Else, create a trivial else block so that we create |
| 5353 | // a diamond anyway, to preserve Ion invariants. |
| 5354 | if (!f.switchToElse(block, &block)) { |
| 5355 | return false; |
| 5356 | } |
| 5357 | |
| 5358 | if (!f.pushDefs(resultsForEmptyElse)) { |
| 5359 | return false; |
| 5360 | } |
| 5361 | |
| 5362 | if (!f.joinIfElse(block, &postJoinDefs)) { |
| 5363 | return false; |
| 5364 | } |
| 5365 | f.iter().popEnd(); |
| 5366 | break; |
| 5367 | } |
| 5368 | case LabelKind::Else: |
| 5369 | MOZ_ASSERT(!control.tryControl)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!control.tryControl)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!control.tryControl))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!control.tryControl" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5369); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!control.tryControl" ")"); do { *((volatile int*)__null) = 5369; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5370 | if (!f.joinIfElse(block, &postJoinDefs)) { |
| 5371 | return false; |
| 5372 | } |
| 5373 | f.iter().popEnd(); |
| 5374 | break; |
| 5375 | case LabelKind::Try: |
| 5376 | case LabelKind::Catch: |
| 5377 | case LabelKind::CatchAll: |
| 5378 | MOZ_ASSERT(control.tryControl)do { static_assert( mozilla::detail::AssertionConditionType< decltype(control.tryControl)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(control.tryControl))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("control.tryControl" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5378); AnnotateMozCrashReason("MOZ_ASSERT" "(" "control.tryControl" ")"); do { *((volatile int*)__null) = 5378; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5379 | if (!f.finishTryCatch(kind, control, &postJoinDefs)) { |
| 5380 | return false; |
| 5381 | } |
| 5382 | f.freeTryControl(std::move(control.tryControl)); |
| 5383 | f.iter().popEnd(); |
| 5384 | break; |
| 5385 | case LabelKind::TryTable: |
| 5386 | MOZ_ASSERT(control.tryControl)do { static_assert( mozilla::detail::AssertionConditionType< decltype(control.tryControl)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(control.tryControl))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("control.tryControl" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5386); AnnotateMozCrashReason("MOZ_ASSERT" "(" "control.tryControl" ")"); do { *((volatile int*)__null) = 5386; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5387 | if (!f.finishTryTable(control, &postJoinDefs)) { |
| 5388 | return false; |
| 5389 | } |
| 5390 | f.freeTryControl(std::move(control.tryControl)); |
| 5391 | f.iter().popEnd(); |
| 5392 | break; |
| 5393 | } |
| 5394 | |
| 5395 | MOZ_ASSERT_IF(!f.inDeadCode(), postJoinDefs.length() == type.length())do { if (!f.inDeadCode()) { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(postJoinDefs.length() == type.length())>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(postJoinDefs.length() == type. length()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("postJoinDefs.length() == type.length()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5395); AnnotateMozCrashReason("MOZ_ASSERT" "(" "postJoinDefs.length() == type.length()" ")"); do { *((volatile int*)__null) = 5395; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 5396 | f.iter().setResults(postJoinDefs.length(), postJoinDefs); |
| 5397 | |
| 5398 | return true; |
| 5399 | } |
| 5400 | |
| 5401 | static bool EmitBr(FunctionCompiler& f) { |
| 5402 | uint32_t relativeDepth; |
| 5403 | ResultType type; |
| 5404 | DefVector values; |
| 5405 | if (!f.iter().readBr(&relativeDepth, &type, &values)) { |
| 5406 | return false; |
| 5407 | } |
| 5408 | |
| 5409 | return f.br(relativeDepth, values); |
| 5410 | } |
| 5411 | |
| 5412 | static bool EmitBrIf(FunctionCompiler& f) { |
| 5413 | uint32_t relativeDepth; |
| 5414 | ResultType type; |
| 5415 | DefVector values; |
| 5416 | MDefinition* condition; |
| 5417 | |
| 5418 | BranchHint branchHint = |
| 5419 | f.iter().getBranchHint(f.funcIndex(), f.relativeBytecodeOffset()); |
| 5420 | |
| 5421 | if (!f.iter().readBrIf(&relativeDepth, &type, &values, &condition)) { |
| 5422 | return false; |
| 5423 | } |
| 5424 | |
| 5425 | return f.brIf(relativeDepth, values, condition, branchHint); |
| 5426 | } |
| 5427 | |
| 5428 | static bool EmitBrTable(FunctionCompiler& f) { |
| 5429 | Uint32Vector depths; |
| 5430 | uint32_t defaultDepth; |
| 5431 | ResultType branchValueType; |
| 5432 | DefVector branchValues; |
| 5433 | MDefinition* index; |
| 5434 | if (!f.iter().readBrTable(&depths, &defaultDepth, &branchValueType, |
| 5435 | &branchValues, &index)) { |
| 5436 | return false; |
| 5437 | } |
| 5438 | |
| 5439 | // If all the targets are the same, or there are no targets, we can just |
| 5440 | // use a goto. This is not just an optimization: MaybeFoldConditionBlock |
| 5441 | // assumes that tables have more than one successor. |
| 5442 | bool allSameDepth = true; |
| 5443 | for (uint32_t depth : depths) { |
| 5444 | if (depth != defaultDepth) { |
| 5445 | allSameDepth = false; |
| 5446 | break; |
| 5447 | } |
| 5448 | } |
| 5449 | |
| 5450 | if (allSameDepth) { |
| 5451 | return f.br(defaultDepth, branchValues); |
| 5452 | } |
| 5453 | |
| 5454 | return f.brTable(index, defaultDepth, depths, branchValues); |
| 5455 | } |
| 5456 | |
| 5457 | static bool EmitReturn(FunctionCompiler& f) { |
| 5458 | DefVector values; |
| 5459 | if (!f.iter().readReturn(&values)) { |
| 5460 | return false; |
| 5461 | } |
| 5462 | |
| 5463 | return f.returnValues(std::move(values)); |
| 5464 | } |
| 5465 | |
| 5466 | static bool EmitUnreachable(FunctionCompiler& f) { |
| 5467 | if (!f.iter().readUnreachable()) { |
| 5468 | return false; |
| 5469 | } |
| 5470 | |
| 5471 | f.unreachableTrap(); |
| 5472 | return true; |
| 5473 | } |
| 5474 | |
| 5475 | static bool EmitTry(FunctionCompiler& f) { |
| 5476 | ResultType params; |
| 5477 | if (!f.iter().readTry(¶ms)) { |
| 5478 | return false; |
| 5479 | } |
| 5480 | |
| 5481 | return f.startTry(); |
| 5482 | } |
| 5483 | |
| 5484 | static bool EmitCatch(FunctionCompiler& f) { |
| 5485 | LabelKind kind; |
| 5486 | uint32_t tagIndex; |
| 5487 | ResultType paramType, resultType; |
| 5488 | DefVector tryValues; |
| 5489 | if (!f.iter().readCatch(&kind, &tagIndex, ¶mType, &resultType, |
| 5490 | &tryValues)) { |
| 5491 | return false; |
| 5492 | } |
| 5493 | |
| 5494 | // Pushing the results of the previous block, to properly join control flow |
| 5495 | // after the try and after each handler, as well as potential control flow |
| 5496 | // patches from other instrunctions. This is similar to what is done for |
| 5497 | // if-then-else control flow and for most other control control flow joins. |
| 5498 | if (!f.pushDefs(tryValues)) { |
| 5499 | return false; |
| 5500 | } |
| 5501 | |
| 5502 | return f.switchToCatch(f.iter().controlItem(), kind, tagIndex); |
| 5503 | } |
| 5504 | |
| 5505 | static bool EmitCatchAll(FunctionCompiler& f) { |
| 5506 | LabelKind kind; |
| 5507 | ResultType paramType, resultType; |
| 5508 | DefVector tryValues; |
| 5509 | if (!f.iter().readCatchAll(&kind, ¶mType, &resultType, &tryValues)) { |
| 5510 | return false; |
| 5511 | } |
| 5512 | |
| 5513 | // Pushing the results of the previous block, to properly join control flow |
| 5514 | // after the try and after each handler, as well as potential control flow |
| 5515 | // patches from other instrunctions. |
| 5516 | if (!f.pushDefs(tryValues)) { |
| 5517 | return false; |
| 5518 | } |
| 5519 | |
| 5520 | return f.switchToCatch(f.iter().controlItem(), kind, CatchAllIndex); |
| 5521 | } |
| 5522 | |
| 5523 | static bool EmitTryTable(FunctionCompiler& f) { |
| 5524 | ResultType params; |
| 5525 | TryTableCatchVector catches; |
| 5526 | if (!f.iter().readTryTable(¶ms, &catches)) { |
| 5527 | return false; |
| 5528 | } |
| 5529 | |
| 5530 | return f.startTryTable(std::move(catches)); |
| 5531 | } |
| 5532 | |
| 5533 | static bool EmitDelegate(FunctionCompiler& f) { |
| 5534 | uint32_t relativeDepth; |
| 5535 | ResultType resultType; |
| 5536 | DefVector tryValues; |
| 5537 | if (!f.iter().readDelegate(&relativeDepth, &resultType, &tryValues)) { |
| 5538 | return false; |
| 5539 | } |
| 5540 | |
| 5541 | Control& control = f.iter().controlItem(); |
| 5542 | MBasicBlock* block = control.block; |
| 5543 | MOZ_ASSERT(control.tryControl)do { static_assert( mozilla::detail::AssertionConditionType< decltype(control.tryControl)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(control.tryControl))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("control.tryControl" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5543); AnnotateMozCrashReason("MOZ_ASSERT" "(" "control.tryControl" ")"); do { *((volatile int*)__null) = 5543; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5544 | |
| 5545 | // Unless the entire try-delegate is dead code, delegate any pad-patches from |
| 5546 | // this try to the next try-block above relativeDepth. |
| 5547 | if (block) { |
| 5548 | ControlInstructionVector& delegatePadPatches = |
| 5549 | control.tryControl->landingPadPatches; |
| 5550 | if (!f.delegatePadPatches(delegatePadPatches, relativeDepth)) { |
| 5551 | return false; |
| 5552 | } |
| 5553 | } |
| 5554 | f.freeTryControl(std::move(control.tryControl)); |
| 5555 | f.iter().popDelegate(); |
| 5556 | |
| 5557 | // Push the results of the previous block, and join control flow with |
| 5558 | // potential control flow patches from other instrunctions in the try code. |
| 5559 | // This is similar to what is done for EmitEnd. |
| 5560 | if (!f.pushDefs(tryValues)) { |
| 5561 | return false; |
| 5562 | } |
| 5563 | DefVector postJoinDefs; |
| 5564 | if (!f.finishBlock(&postJoinDefs)) { |
| 5565 | return false; |
| 5566 | } |
| 5567 | MOZ_ASSERT_IF(!f.inDeadCode(), postJoinDefs.length() == resultType.length())do { if (!f.inDeadCode()) { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(postJoinDefs.length() == resultType.length())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(postJoinDefs.length() == resultType .length()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("postJoinDefs.length() == resultType.length()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5567); AnnotateMozCrashReason("MOZ_ASSERT" "(" "postJoinDefs.length() == resultType.length()" ")"); do { *((volatile int*)__null) = 5567; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 5568 | f.iter().setResults(postJoinDefs.length(), postJoinDefs); |
| 5569 | |
| 5570 | return true; |
| 5571 | } |
| 5572 | |
| 5573 | static bool EmitThrow(FunctionCompiler& f) { |
| 5574 | uint32_t tagIndex; |
| 5575 | DefVector argValues; |
| 5576 | if (!f.iter().readThrow(&tagIndex, &argValues)) { |
| 5577 | return false; |
| 5578 | } |
| 5579 | |
| 5580 | return f.emitThrow(tagIndex, argValues); |
| 5581 | } |
| 5582 | |
| 5583 | static bool EmitThrowRef(FunctionCompiler& f) { |
| 5584 | MDefinition* exnRef; |
| 5585 | if (!f.iter().readThrowRef(&exnRef)) { |
| 5586 | return false; |
| 5587 | } |
| 5588 | |
| 5589 | return f.emitThrowRef(exnRef); |
| 5590 | } |
| 5591 | |
| 5592 | static bool EmitRethrow(FunctionCompiler& f) { |
| 5593 | uint32_t relativeDepth; |
| 5594 | if (!f.iter().readRethrow(&relativeDepth)) { |
| 5595 | return false; |
| 5596 | } |
| 5597 | |
| 5598 | return f.emitRethrow(relativeDepth); |
| 5599 | } |
| 5600 | |
| 5601 | static bool EmitInlineCall(FunctionCompiler& callerCompiler, |
| 5602 | const FuncType& funcType, uint32_t funcIndex, |
| 5603 | const DefVector& args, DefVector* results) { |
| 5604 | UniqueChars error; |
| 5605 | const Bytes& bytecode = callerCompiler.codeMeta().bytecode->bytes; |
| 5606 | const FuncDefRange& funcRange = |
| 5607 | callerCompiler.codeMeta().funcDefRange(funcIndex); |
| 5608 | const uint8_t* bodyBegin = bytecode.begin() + funcRange.bytecodeOffset; |
| 5609 | const uint8_t* bodyEnd = bodyBegin + funcRange.bodyLength; |
| 5610 | FuncCompileInput func(funcIndex, funcRange.bytecodeOffset, bodyBegin, bodyEnd, |
| 5611 | Uint32Vector()); |
| 5612 | Decoder d(func.begin, func.end, func.lineOrBytecode, &error); |
| 5613 | |
| 5614 | ValTypeVector locals; |
| 5615 | if (!DecodeLocalEntriesWithParams(d, callerCompiler.codeMeta(), funcIndex, |
| 5616 | &locals)) { |
| 5617 | return false; |
| 5618 | } |
| 5619 | |
| 5620 | CompileInfo* compileInfo = callerCompiler.addInlineCallInfo(locals.length()); |
| 5621 | if (!compileInfo) { |
| 5622 | return false; |
| 5623 | } |
| 5624 | |
| 5625 | FunctionCompiler calleeCompiler(&callerCompiler, d, func, locals, |
| 5626 | *compileInfo); |
| 5627 | if (!calleeCompiler.initInline(args)) { |
| 5628 | MOZ_ASSERT(!error)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!error)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(!error))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!error", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5628); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!error" ")" ); do { *((volatile int*)__null) = 5628; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5629 | return false; |
| 5630 | } |
| 5631 | |
| 5632 | if (!calleeCompiler.startBlock()) { |
| 5633 | MOZ_ASSERT(!error)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!error)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(!error))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!error", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5633); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!error" ")" ); do { *((volatile int*)__null) = 5633; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5634 | return false; |
| 5635 | } |
| 5636 | |
| 5637 | if (!EmitBodyExprs(calleeCompiler)) { |
| 5638 | MOZ_ASSERT(!error)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!error)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(!error))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!error", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5638); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!error" ")" ); do { *((volatile int*)__null) = 5638; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5639 | return false; |
| 5640 | } |
| 5641 | |
| 5642 | calleeCompiler.finish(); |
| 5643 | |
| 5644 | return callerCompiler.finishInlinedCallDirect(calleeCompiler, results); |
| 5645 | } |
| 5646 | |
| 5647 | static bool EmitCallArgs(FunctionCompiler& f, const FuncType& funcType, |
| 5648 | const DefVector& args, CallCompileState* call) { |
| 5649 | for (size_t i = 0, n = funcType.args().length(); i < n; ++i) { |
| 5650 | if (!f.mirGen().ensureBallast()) { |
| 5651 | return false; |
| 5652 | } |
| 5653 | if (!f.passArg(args[i], funcType.args()[i], call)) { |
| 5654 | return false; |
| 5655 | } |
| 5656 | } |
| 5657 | |
| 5658 | ResultType resultType = ResultType::Vector(funcType.results()); |
| 5659 | if (!f.passStackResultAreaCallArg(resultType, call)) { |
| 5660 | return false; |
| 5661 | } |
| 5662 | |
| 5663 | return f.finishCall(call); |
| 5664 | } |
| 5665 | |
| 5666 | static bool EmitCall(FunctionCompiler& f, bool asmJSFuncDef) { |
| 5667 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 5668 | |
| 5669 | uint32_t funcIndex; |
| 5670 | DefVector args; |
| 5671 | if (asmJSFuncDef) { |
| 5672 | if (!f.iter().readOldCallDirect(f.codeMeta().numFuncImports, &funcIndex, |
| 5673 | &args)) { |
| 5674 | return false; |
| 5675 | } |
| 5676 | } else { |
| 5677 | if (!f.iter().readCall(&funcIndex, &args)) { |
| 5678 | return false; |
| 5679 | } |
| 5680 | } |
| 5681 | |
| 5682 | if (f.inDeadCode()) { |
| 5683 | return true; |
| 5684 | } |
| 5685 | |
| 5686 | const FuncType& funcType = f.codeMeta().getFuncType(funcIndex); |
| 5687 | |
| 5688 | DefVector results; |
| 5689 | if (f.codeMeta().funcIsImport(funcIndex)) { |
| 5690 | CallCompileState call; |
| 5691 | if (!EmitCallArgs(f, funcType, args, &call)) { |
| 5692 | return false; |
| 5693 | } |
| 5694 | |
| 5695 | uint32_t instanceDataOffset = |
| 5696 | f.codeMeta().offsetOfFuncImportInstanceData(funcIndex); |
| 5697 | if (!f.callImport(instanceDataOffset, lineOrBytecode, call, funcType, |
| 5698 | &results)) { |
| 5699 | return false; |
| 5700 | } |
| 5701 | } else { |
| 5702 | if (f.shouldInlineCallDirect(funcIndex)) { |
| 5703 | if (!EmitInlineCall(f, funcType, funcIndex, args, &results)) { |
| 5704 | return false; |
| 5705 | } |
| 5706 | } else { |
| 5707 | CallCompileState call; |
| 5708 | if (!EmitCallArgs(f, funcType, args, &call)) { |
| 5709 | return false; |
| 5710 | } |
| 5711 | if (!f.callDirect(funcType, funcIndex, lineOrBytecode, call, &results)) { |
| 5712 | return false; |
| 5713 | } |
| 5714 | } |
| 5715 | } |
| 5716 | |
| 5717 | f.iter().setResults(results.length(), results); |
| 5718 | return true; |
| 5719 | } |
| 5720 | |
| 5721 | static bool EmitCallIndirect(FunctionCompiler& f, bool oldStyle) { |
| 5722 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 5723 | |
| 5724 | uint32_t funcTypeIndex; |
| 5725 | uint32_t tableIndex; |
| 5726 | MDefinition* callee; |
| 5727 | DefVector args; |
| 5728 | if (oldStyle) { |
| 5729 | tableIndex = 0; |
| 5730 | if (!f.iter().readOldCallIndirect(&funcTypeIndex, &callee, &args)) { |
| 5731 | return false; |
| 5732 | } |
| 5733 | } else { |
| 5734 | if (!f.iter().readCallIndirect(&funcTypeIndex, &tableIndex, &callee, |
| 5735 | &args)) { |
| 5736 | return false; |
| 5737 | } |
| 5738 | } |
| 5739 | |
| 5740 | if (f.inDeadCode()) { |
| 5741 | return true; |
| 5742 | } |
| 5743 | |
| 5744 | const FuncType& funcType = (*f.codeMeta().types)[funcTypeIndex].funcType(); |
| 5745 | |
| 5746 | CallCompileState call; |
| 5747 | if (!EmitCallArgs(f, funcType, args, &call)) { |
| 5748 | return false; |
| 5749 | } |
| 5750 | |
| 5751 | DefVector results; |
| 5752 | if (!f.callIndirect(funcTypeIndex, tableIndex, callee, lineOrBytecode, call, |
| 5753 | &results)) { |
| 5754 | return false; |
| 5755 | } |
| 5756 | |
| 5757 | f.iter().setResults(results.length(), results); |
| 5758 | return true; |
| 5759 | } |
| 5760 | |
| 5761 | #ifdef ENABLE_WASM_JSPI1 |
| 5762 | static bool EmitStackSwitch(FunctionCompiler& f) { |
| 5763 | StackSwitchKind kind; |
| 5764 | MDefinition* suspender; |
| 5765 | MDefinition* fn; |
| 5766 | MDefinition* data; |
| 5767 | if (!f.iter().readStackSwitch(&kind, &suspender, &fn, &data)) { |
| 5768 | return false; |
| 5769 | } |
| 5770 | if (!f.stackSwitch(suspender, fn, data, kind)) { |
| 5771 | return false; |
| 5772 | } |
| 5773 | return true; |
| 5774 | } |
| 5775 | #endif |
| 5776 | |
| 5777 | #ifdef ENABLE_WASM_TAIL_CALLS1 |
| 5778 | static bool EmitReturnCall(FunctionCompiler& f) { |
| 5779 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 5780 | |
| 5781 | uint32_t funcIndex; |
| 5782 | DefVector args; |
| 5783 | if (!f.iter().readReturnCall(&funcIndex, &args)) { |
| 5784 | return false; |
| 5785 | } |
| 5786 | |
| 5787 | if (f.inDeadCode()) { |
| 5788 | return true; |
| 5789 | } |
| 5790 | |
| 5791 | const FuncType& funcType = f.codeMeta().getFuncType(funcIndex); |
| 5792 | |
| 5793 | CallCompileState call; |
| 5794 | f.markReturnCall(&call); |
| 5795 | if (!EmitCallArgs(f, funcType, args, &call)) { |
| 5796 | return false; |
| 5797 | } |
| 5798 | |
| 5799 | DefVector results; |
| 5800 | if (f.codeMeta().funcIsImport(funcIndex)) { |
| 5801 | uint32_t globalDataOffset = |
| 5802 | f.codeMeta().offsetOfFuncImportInstanceData(funcIndex); |
| 5803 | if (!f.returnCallImport(globalDataOffset, lineOrBytecode, call, funcType, |
| 5804 | &results)) { |
| 5805 | return false; |
| 5806 | } |
| 5807 | } else { |
| 5808 | if (!f.returnCallDirect(funcType, funcIndex, lineOrBytecode, call, |
| 5809 | &results)) { |
| 5810 | return false; |
| 5811 | } |
| 5812 | } |
| 5813 | return true; |
| 5814 | } |
| 5815 | |
| 5816 | static bool EmitReturnCallIndirect(FunctionCompiler& f) { |
| 5817 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 5818 | |
| 5819 | uint32_t funcTypeIndex; |
| 5820 | uint32_t tableIndex; |
| 5821 | MDefinition* callee; |
| 5822 | DefVector args; |
| 5823 | if (!f.iter().readReturnCallIndirect(&funcTypeIndex, &tableIndex, &callee, |
| 5824 | &args)) { |
| 5825 | return false; |
| 5826 | } |
| 5827 | |
| 5828 | if (f.inDeadCode()) { |
| 5829 | return true; |
| 5830 | } |
| 5831 | |
| 5832 | const FuncType& funcType = (*f.codeMeta().types)[funcTypeIndex].funcType(); |
| 5833 | |
| 5834 | CallCompileState call; |
| 5835 | f.markReturnCall(&call); |
| 5836 | if (!EmitCallArgs(f, funcType, args, &call)) { |
| 5837 | return false; |
| 5838 | } |
| 5839 | |
| 5840 | DefVector results; |
| 5841 | return f.returnCallIndirect(funcTypeIndex, tableIndex, callee, lineOrBytecode, |
| 5842 | call, &results); |
| 5843 | } |
| 5844 | #endif |
| 5845 | |
| 5846 | #if defined(ENABLE_WASM_TAIL_CALLS1) && defined(ENABLE_WASM_GC1) |
| 5847 | static bool EmitReturnCallRef(FunctionCompiler& f) { |
| 5848 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 5849 | |
| 5850 | const FuncType* funcType; |
| 5851 | MDefinition* callee; |
| 5852 | DefVector args; |
| 5853 | |
| 5854 | if (!f.iter().readReturnCallRef(&funcType, &callee, &args)) { |
| 5855 | return false; |
| 5856 | } |
| 5857 | |
| 5858 | if (f.inDeadCode()) { |
| 5859 | return true; |
| 5860 | } |
| 5861 | |
| 5862 | CallCompileState call; |
| 5863 | f.markReturnCall(&call); |
| 5864 | if (!EmitCallArgs(f, *funcType, args, &call)) { |
| 5865 | return false; |
| 5866 | } |
| 5867 | |
| 5868 | DefVector results; |
| 5869 | return f.returnCallRef(*funcType, callee, lineOrBytecode, call, &results); |
| 5870 | } |
| 5871 | #endif |
| 5872 | |
| 5873 | static bool EmitGetLocal(FunctionCompiler& f) { |
| 5874 | uint32_t id; |
| 5875 | if (!f.iter().readGetLocal(f.locals(), &id)) { |
| 5876 | return false; |
| 5877 | } |
| 5878 | |
| 5879 | f.iter().setResult(f.getLocalDef(id)); |
| 5880 | return true; |
| 5881 | } |
| 5882 | |
| 5883 | static bool EmitSetLocal(FunctionCompiler& f) { |
| 5884 | uint32_t id; |
| 5885 | MDefinition* value; |
| 5886 | if (!f.iter().readSetLocal(f.locals(), &id, &value)) { |
| 5887 | return false; |
| 5888 | } |
| 5889 | |
| 5890 | f.assign(id, value); |
| 5891 | return true; |
| 5892 | } |
| 5893 | |
| 5894 | static bool EmitTeeLocal(FunctionCompiler& f) { |
| 5895 | uint32_t id; |
| 5896 | MDefinition* value; |
| 5897 | if (!f.iter().readTeeLocal(f.locals(), &id, &value)) { |
| 5898 | return false; |
| 5899 | } |
| 5900 | |
| 5901 | f.assign(id, value); |
| 5902 | return true; |
| 5903 | } |
| 5904 | |
| 5905 | static bool EmitGetGlobal(FunctionCompiler& f) { |
| 5906 | uint32_t id; |
| 5907 | if (!f.iter().readGetGlobal(&id)) { |
| 5908 | return false; |
| 5909 | } |
| 5910 | |
| 5911 | const GlobalDesc& global = f.codeMeta().globals[id]; |
| 5912 | if (!global.isConstant()) { |
| 5913 | f.iter().setResult(f.loadGlobalVar(global.offset(), !global.isMutable(), |
| 5914 | global.isIndirect(), |
| 5915 | global.type().toMIRType())); |
| 5916 | return true; |
| 5917 | } |
| 5918 | |
| 5919 | LitVal value = global.constantValue(); |
| 5920 | |
| 5921 | MDefinition* result; |
| 5922 | switch (value.type().kind()) { |
| 5923 | case ValType::I32: |
| 5924 | result = f.constantI32(int32_t(value.i32())); |
| 5925 | break; |
| 5926 | case ValType::I64: |
| 5927 | result = f.constantI64(int64_t(value.i64())); |
| 5928 | break; |
| 5929 | case ValType::F32: |
| 5930 | result = f.constantF32(value.f32()); |
| 5931 | break; |
| 5932 | case ValType::F64: |
| 5933 | result = f.constantF64(value.f64()); |
| 5934 | break; |
| 5935 | case ValType::V128: |
| 5936 | #ifdef ENABLE_WASM_SIMD1 |
| 5937 | result = f.constantV128(value.v128()); |
| 5938 | break; |
| 5939 | #else |
| 5940 | return f.iter().fail("Ion has no SIMD support yet"); |
| 5941 | #endif |
| 5942 | case ValType::Ref: |
| 5943 | MOZ_ASSERT(value.ref().isNull())do { static_assert( mozilla::detail::AssertionConditionType< decltype(value.ref().isNull())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(value.ref().isNull()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("value.ref().isNull()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5943); AnnotateMozCrashReason("MOZ_ASSERT" "(" "value.ref().isNull()" ")"); do { *((volatile int*)__null) = 5943; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5944 | result = f.constantNullRef(); |
| 5945 | break; |
| 5946 | default: |
| 5947 | MOZ_CRASH("unexpected type in EmitGetGlobal")do { do { } while (false); MOZ_ReportCrash("" "unexpected type in EmitGetGlobal" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5947); AnnotateMozCrashReason("MOZ_CRASH(" "unexpected type in EmitGetGlobal" ")"); do { *((volatile int*)__null) = 5947; __attribute__((nomerge )) ::abort(); } while (false); } while (false); |
| 5948 | } |
| 5949 | |
| 5950 | f.iter().setResult(result); |
| 5951 | return true; |
| 5952 | } |
| 5953 | |
| 5954 | static bool EmitSetGlobal(FunctionCompiler& f) { |
| 5955 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 5956 | |
| 5957 | uint32_t id; |
| 5958 | MDefinition* value; |
| 5959 | if (!f.iter().readSetGlobal(&id, &value)) { |
| 5960 | return false; |
| 5961 | } |
| 5962 | |
| 5963 | const GlobalDesc& global = f.codeMeta().globals[id]; |
| 5964 | MOZ_ASSERT(global.isMutable())do { static_assert( mozilla::detail::AssertionConditionType< decltype(global.isMutable())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(global.isMutable()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("global.isMutable()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5964); AnnotateMozCrashReason("MOZ_ASSERT" "(" "global.isMutable()" ")"); do { *((volatile int*)__null) = 5964; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5965 | return f.storeGlobalVar(bytecodeOffset, global.offset(), global.isIndirect(), |
| 5966 | value); |
| 5967 | } |
| 5968 | |
| 5969 | static bool EmitTeeGlobal(FunctionCompiler& f) { |
| 5970 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 5971 | |
| 5972 | uint32_t id; |
| 5973 | MDefinition* value; |
| 5974 | if (!f.iter().readTeeGlobal(&id, &value)) { |
| 5975 | return false; |
| 5976 | } |
| 5977 | |
| 5978 | const GlobalDesc& global = f.codeMeta().globals[id]; |
| 5979 | MOZ_ASSERT(global.isMutable())do { static_assert( mozilla::detail::AssertionConditionType< decltype(global.isMutable())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(global.isMutable()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("global.isMutable()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 5979); AnnotateMozCrashReason("MOZ_ASSERT" "(" "global.isMutable()" ")"); do { *((volatile int*)__null) = 5979; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5980 | |
| 5981 | return f.storeGlobalVar(bytecodeOffset, global.offset(), global.isIndirect(), |
| 5982 | value); |
| 5983 | } |
| 5984 | |
| 5985 | template <typename MIRClass> |
| 5986 | static bool EmitUnary(FunctionCompiler& f, ValType operandType) { |
| 5987 | MDefinition* input; |
| 5988 | if (!f.iter().readUnary(operandType, &input)) { |
| 5989 | return false; |
| 5990 | } |
| 5991 | |
| 5992 | f.iter().setResult(f.unary<MIRClass>(input)); |
| 5993 | return true; |
| 5994 | } |
| 5995 | |
| 5996 | template <typename MIRClass> |
| 5997 | static bool EmitConversion(FunctionCompiler& f, ValType operandType, |
| 5998 | ValType resultType) { |
| 5999 | MDefinition* input; |
| 6000 | if (!f.iter().readConversion(operandType, resultType, &input)) { |
| 6001 | return false; |
| 6002 | } |
| 6003 | |
| 6004 | f.iter().setResult(f.unary<MIRClass>(input)); |
| 6005 | return true; |
| 6006 | } |
| 6007 | |
| 6008 | template <typename MIRClass> |
| 6009 | static bool EmitUnaryWithType(FunctionCompiler& f, ValType operandType, |
| 6010 | MIRType mirType) { |
| 6011 | MDefinition* input; |
| 6012 | if (!f.iter().readUnary(operandType, &input)) { |
| 6013 | return false; |
| 6014 | } |
| 6015 | |
| 6016 | f.iter().setResult(f.unary<MIRClass>(input, mirType)); |
| 6017 | return true; |
| 6018 | } |
| 6019 | |
| 6020 | template <typename MIRClass> |
| 6021 | static bool EmitConversionWithType(FunctionCompiler& f, ValType operandType, |
| 6022 | ValType resultType, MIRType mirType) { |
| 6023 | MDefinition* input; |
| 6024 | if (!f.iter().readConversion(operandType, resultType, &input)) { |
| 6025 | return false; |
| 6026 | } |
| 6027 | |
| 6028 | f.iter().setResult(f.unary<MIRClass>(input, mirType)); |
| 6029 | return true; |
| 6030 | } |
| 6031 | |
| 6032 | static bool EmitTruncate(FunctionCompiler& f, ValType operandType, |
| 6033 | ValType resultType, bool isUnsigned, |
| 6034 | bool isSaturating) { |
| 6035 | MDefinition* input = nullptr; |
| 6036 | if (!f.iter().readConversion(operandType, resultType, &input)) { |
| 6037 | return false; |
| 6038 | } |
| 6039 | |
| 6040 | TruncFlags flags = 0; |
| 6041 | if (isUnsigned) { |
| 6042 | flags |= TRUNC_UNSIGNED; |
| 6043 | } |
| 6044 | if (isSaturating) { |
| 6045 | flags |= TRUNC_SATURATING; |
| 6046 | } |
| 6047 | if (resultType == ValType::I32) { |
| 6048 | if (f.codeMeta().isAsmJS()) { |
| 6049 | if (f.inDeadCode()) { |
| 6050 | // The read callsite line, produced by prepareCall, has to be |
| 6051 | // consumed -- the MWasmBuiltinTruncateToInt32 and MTruncateToInt32 |
| 6052 | // will not create MIR node. |
| 6053 | (void)f.readCallSiteLineOrBytecode(); |
| 6054 | f.iter().setResult(nullptr); |
| 6055 | } else if (input && (input->type() == MIRType::Double || |
| 6056 | input->type() == MIRType::Float32)) { |
| 6057 | f.iter().setResult(f.unary<MWasmBuiltinTruncateToInt32>(input)); |
| 6058 | } else { |
| 6059 | f.iter().setResult(f.unary<MTruncateToInt32>(input)); |
| 6060 | } |
| 6061 | } else { |
| 6062 | f.iter().setResult(f.truncate<MWasmTruncateToInt32>(input, flags)); |
| 6063 | } |
| 6064 | } else { |
| 6065 | MOZ_ASSERT(resultType == ValType::I64)do { static_assert( mozilla::detail::AssertionConditionType< decltype(resultType == ValType::I64)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(resultType == ValType::I64)) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("resultType == ValType::I64" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 6065); AnnotateMozCrashReason("MOZ_ASSERT" "(" "resultType == ValType::I64" ")"); do { *((volatile int*)__null) = 6065; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6066 | MOZ_ASSERT(!f.codeMeta().isAsmJS())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!f.codeMeta().isAsmJS())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!f.codeMeta().isAsmJS()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("!f.codeMeta().isAsmJS()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 6066); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!f.codeMeta().isAsmJS()" ")"); do { *((volatile int*)__null) = 6066; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6067 | #if defined(JS_CODEGEN_ARM) |
| 6068 | f.iter().setResult(f.truncateWithInstance(input, flags)); |
| 6069 | #else |
| 6070 | f.iter().setResult(f.truncate<MWasmTruncateToInt64>(input, flags)); |
| 6071 | #endif |
| 6072 | } |
| 6073 | return true; |
| 6074 | } |
| 6075 | |
| 6076 | static bool EmitSignExtend(FunctionCompiler& f, uint32_t srcSize, |
| 6077 | uint32_t targetSize) { |
| 6078 | MDefinition* input; |
| 6079 | ValType type = targetSize == 4 ? ValType::I32 : ValType::I64; |
| 6080 | if (!f.iter().readConversion(type, type, &input)) { |
| 6081 | return false; |
| 6082 | } |
| 6083 | |
| 6084 | f.iter().setResult(f.signExtend(input, srcSize, targetSize)); |
| 6085 | return true; |
| 6086 | } |
| 6087 | |
| 6088 | static bool EmitExtendI32(FunctionCompiler& f, bool isUnsigned) { |
| 6089 | MDefinition* input; |
| 6090 | if (!f.iter().readConversion(ValType::I32, ValType::I64, &input)) { |
| 6091 | return false; |
| 6092 | } |
| 6093 | |
| 6094 | f.iter().setResult(f.extendI32(input, isUnsigned)); |
| 6095 | return true; |
| 6096 | } |
| 6097 | |
| 6098 | static bool EmitConvertI64ToFloatingPoint(FunctionCompiler& f, |
| 6099 | ValType resultType, MIRType mirType, |
| 6100 | bool isUnsigned) { |
| 6101 | MDefinition* input; |
| 6102 | if (!f.iter().readConversion(ValType::I64, resultType, &input)) { |
| 6103 | return false; |
| 6104 | } |
| 6105 | |
| 6106 | f.iter().setResult(f.convertI64ToFloatingPoint(input, mirType, isUnsigned)); |
| 6107 | return true; |
| 6108 | } |
| 6109 | |
| 6110 | static bool EmitReinterpret(FunctionCompiler& f, ValType resultType, |
| 6111 | ValType operandType, MIRType mirType) { |
| 6112 | MDefinition* input; |
| 6113 | if (!f.iter().readConversion(operandType, resultType, &input)) { |
| 6114 | return false; |
| 6115 | } |
| 6116 | |
| 6117 | f.iter().setResult(f.unary<MWasmReinterpret>(input, mirType)); |
| 6118 | return true; |
| 6119 | } |
| 6120 | |
| 6121 | static bool EmitAdd(FunctionCompiler& f, ValType type, MIRType mirType) { |
| 6122 | MDefinition* lhs; |
| 6123 | MDefinition* rhs; |
| 6124 | if (!f.iter().readBinary(type, &lhs, &rhs)) { |
| 6125 | return false; |
| 6126 | } |
| 6127 | |
| 6128 | f.iter().setResult(f.add(lhs, rhs, mirType)); |
| 6129 | return true; |
| 6130 | } |
| 6131 | |
| 6132 | static bool EmitSub(FunctionCompiler& f, ValType type, MIRType mirType) { |
| 6133 | MDefinition* lhs; |
| 6134 | MDefinition* rhs; |
| 6135 | if (!f.iter().readBinary(type, &lhs, &rhs)) { |
| 6136 | return false; |
| 6137 | } |
| 6138 | |
| 6139 | f.iter().setResult(f.sub(lhs, rhs, mirType)); |
| 6140 | return true; |
| 6141 | } |
| 6142 | |
| 6143 | static bool EmitRotate(FunctionCompiler& f, ValType type, bool isLeftRotation) { |
| 6144 | MDefinition* lhs; |
| 6145 | MDefinition* rhs; |
| 6146 | if (!f.iter().readBinary(type, &lhs, &rhs)) { |
| 6147 | return false; |
| 6148 | } |
| 6149 | |
| 6150 | MDefinition* result = f.rotate(lhs, rhs, type.toMIRType(), isLeftRotation); |
| 6151 | f.iter().setResult(result); |
| 6152 | return true; |
| 6153 | } |
| 6154 | |
| 6155 | static bool EmitBitNot(FunctionCompiler& f, ValType operandType) { |
| 6156 | MDefinition* input; |
| 6157 | if (!f.iter().readUnary(operandType, &input)) { |
| 6158 | return false; |
| 6159 | } |
| 6160 | |
| 6161 | f.iter().setResult(f.bitnot(input)); |
| 6162 | return true; |
| 6163 | } |
| 6164 | |
| 6165 | static bool EmitBitwiseAndOrXor(FunctionCompiler& f, ValType operandType, |
| 6166 | MIRType mirType, |
| 6167 | MWasmBinaryBitwise::SubOpcode subOpc) { |
| 6168 | MDefinition* lhs; |
| 6169 | MDefinition* rhs; |
| 6170 | if (!f.iter().readBinary(operandType, &lhs, &rhs)) { |
| 6171 | return false; |
| 6172 | } |
| 6173 | |
| 6174 | f.iter().setResult(f.binary<MWasmBinaryBitwise>(lhs, rhs, mirType, subOpc)); |
| 6175 | return true; |
| 6176 | } |
| 6177 | |
| 6178 | template <typename MIRClass> |
| 6179 | static bool EmitShift(FunctionCompiler& f, ValType operandType, |
| 6180 | MIRType mirType) { |
| 6181 | MDefinition* lhs; |
| 6182 | MDefinition* rhs; |
| 6183 | if (!f.iter().readBinary(operandType, &lhs, &rhs)) { |
| 6184 | return false; |
| 6185 | } |
| 6186 | |
| 6187 | f.iter().setResult(f.binary<MIRClass>(lhs, rhs, mirType)); |
| 6188 | return true; |
| 6189 | } |
| 6190 | |
| 6191 | static bool EmitUrsh(FunctionCompiler& f, ValType operandType, |
| 6192 | MIRType mirType) { |
| 6193 | MDefinition* lhs; |
| 6194 | MDefinition* rhs; |
| 6195 | if (!f.iter().readBinary(operandType, &lhs, &rhs)) { |
| 6196 | return false; |
| 6197 | } |
| 6198 | |
| 6199 | f.iter().setResult(f.ursh(lhs, rhs, mirType)); |
| 6200 | return true; |
| 6201 | } |
| 6202 | |
| 6203 | static bool EmitMul(FunctionCompiler& f, ValType operandType, MIRType mirType) { |
| 6204 | MDefinition* lhs; |
| 6205 | MDefinition* rhs; |
| 6206 | if (!f.iter().readBinary(operandType, &lhs, &rhs)) { |
| 6207 | return false; |
| 6208 | } |
| 6209 | |
| 6210 | f.iter().setResult( |
| 6211 | f.mul(lhs, rhs, mirType, |
| 6212 | mirType == MIRType::Int32 ? MMul::Integer : MMul::Normal)); |
| 6213 | return true; |
| 6214 | } |
| 6215 | |
| 6216 | static bool EmitDiv(FunctionCompiler& f, ValType operandType, MIRType mirType, |
| 6217 | bool isUnsigned) { |
| 6218 | MDefinition* lhs; |
| 6219 | MDefinition* rhs; |
| 6220 | if (!f.iter().readBinary(operandType, &lhs, &rhs)) { |
| 6221 | return false; |
| 6222 | } |
| 6223 | |
| 6224 | f.iter().setResult(f.div(lhs, rhs, mirType, isUnsigned)); |
| 6225 | return true; |
| 6226 | } |
| 6227 | |
| 6228 | static bool EmitRem(FunctionCompiler& f, ValType operandType, MIRType mirType, |
| 6229 | bool isUnsigned) { |
| 6230 | MDefinition* lhs; |
| 6231 | MDefinition* rhs; |
| 6232 | if (!f.iter().readBinary(operandType, &lhs, &rhs)) { |
| 6233 | return false; |
| 6234 | } |
| 6235 | |
| 6236 | f.iter().setResult(f.mod(lhs, rhs, mirType, isUnsigned)); |
| 6237 | return true; |
| 6238 | } |
| 6239 | |
| 6240 | static bool EmitMinMax(FunctionCompiler& f, ValType operandType, |
| 6241 | MIRType mirType, bool isMax) { |
| 6242 | MDefinition* lhs; |
| 6243 | MDefinition* rhs; |
| 6244 | if (!f.iter().readBinary(operandType, &lhs, &rhs)) { |
| 6245 | return false; |
| 6246 | } |
| 6247 | |
| 6248 | f.iter().setResult(f.minMax(lhs, rhs, mirType, isMax)); |
| 6249 | return true; |
| 6250 | } |
| 6251 | |
| 6252 | static bool EmitCopySign(FunctionCompiler& f, ValType operandType) { |
| 6253 | MDefinition* lhs; |
| 6254 | MDefinition* rhs; |
| 6255 | if (!f.iter().readBinary(operandType, &lhs, &rhs)) { |
| 6256 | return false; |
| 6257 | } |
| 6258 | |
| 6259 | f.iter().setResult(f.binary<MCopySign>(lhs, rhs, operandType.toMIRType())); |
| 6260 | return true; |
| 6261 | } |
| 6262 | |
| 6263 | static bool EmitComparison(FunctionCompiler& f, ValType operandType, |
| 6264 | JSOp compareOp, MCompare::CompareType compareType) { |
| 6265 | MDefinition* lhs; |
| 6266 | MDefinition* rhs; |
| 6267 | if (!f.iter().readComparison(operandType, &lhs, &rhs)) { |
| 6268 | return false; |
| 6269 | } |
| 6270 | |
| 6271 | f.iter().setResult(f.compare(lhs, rhs, compareOp, compareType)); |
| 6272 | return true; |
| 6273 | } |
| 6274 | |
| 6275 | static bool EmitSelect(FunctionCompiler& f, bool typed) { |
| 6276 | StackType type; |
| 6277 | MDefinition* trueValue; |
| 6278 | MDefinition* falseValue; |
| 6279 | MDefinition* condition; |
| 6280 | if (!f.iter().readSelect(typed, &type, &trueValue, &falseValue, &condition)) { |
| 6281 | return false; |
| 6282 | } |
| 6283 | |
| 6284 | f.iter().setResult(f.select(trueValue, falseValue, condition)); |
| 6285 | return true; |
| 6286 | } |
| 6287 | |
| 6288 | static bool EmitLoad(FunctionCompiler& f, ValType type, Scalar::Type viewType) { |
| 6289 | LinearMemoryAddress<MDefinition*> addr; |
| 6290 | if (!f.iter().readLoad(type, Scalar::byteSize(viewType), &addr)) { |
| 6291 | return false; |
| 6292 | } |
| 6293 | |
| 6294 | MemoryAccessDesc access(addr.memoryIndex, viewType, addr.align, addr.offset, |
| 6295 | f.bytecodeIfNotAsmJS(), |
| 6296 | f.hugeMemoryEnabled(addr.memoryIndex)); |
| 6297 | auto* ins = f.load(addr.base, &access, type); |
| 6298 | if (!f.inDeadCode() && !ins) { |
| 6299 | return false; |
| 6300 | } |
| 6301 | |
| 6302 | f.iter().setResult(ins); |
| 6303 | return true; |
| 6304 | } |
| 6305 | |
| 6306 | static bool EmitStore(FunctionCompiler& f, ValType resultType, |
| 6307 | Scalar::Type viewType) { |
| 6308 | LinearMemoryAddress<MDefinition*> addr; |
| 6309 | MDefinition* value; |
| 6310 | if (!f.iter().readStore(resultType, Scalar::byteSize(viewType), &addr, |
| 6311 | &value)) { |
| 6312 | return false; |
| 6313 | } |
| 6314 | |
| 6315 | MemoryAccessDesc access(addr.memoryIndex, viewType, addr.align, addr.offset, |
| 6316 | f.bytecodeIfNotAsmJS(), |
| 6317 | f.hugeMemoryEnabled(addr.memoryIndex)); |
| 6318 | |
| 6319 | f.store(addr.base, &access, value); |
| 6320 | return true; |
| 6321 | } |
| 6322 | |
| 6323 | static bool EmitTeeStore(FunctionCompiler& f, ValType resultType, |
| 6324 | Scalar::Type viewType) { |
| 6325 | LinearMemoryAddress<MDefinition*> addr; |
| 6326 | MDefinition* value; |
| 6327 | if (!f.iter().readTeeStore(resultType, Scalar::byteSize(viewType), &addr, |
| 6328 | &value)) { |
| 6329 | return false; |
| 6330 | } |
| 6331 | |
| 6332 | MOZ_ASSERT(f.isMem32(addr.memoryIndex))do { static_assert( mozilla::detail::AssertionConditionType< decltype(f.isMem32(addr.memoryIndex))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(f.isMem32(addr.memoryIndex)) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("f.isMem32(addr.memoryIndex)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 6332); AnnotateMozCrashReason("MOZ_ASSERT" "(" "f.isMem32(addr.memoryIndex)" ")"); do { *((volatile int*)__null) = 6332; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); // asm.js opcode |
| 6333 | MemoryAccessDesc access(addr.memoryIndex, viewType, addr.align, addr.offset, |
| 6334 | f.bytecodeIfNotAsmJS(), |
| 6335 | f.hugeMemoryEnabled(addr.memoryIndex)); |
| 6336 | |
| 6337 | f.store(addr.base, &access, value); |
| 6338 | return true; |
| 6339 | } |
| 6340 | |
| 6341 | static bool EmitTeeStoreWithCoercion(FunctionCompiler& f, ValType resultType, |
| 6342 | Scalar::Type viewType) { |
| 6343 | LinearMemoryAddress<MDefinition*> addr; |
| 6344 | MDefinition* value; |
| 6345 | if (!f.iter().readTeeStore(resultType, Scalar::byteSize(viewType), &addr, |
| 6346 | &value)) { |
| 6347 | return false; |
| 6348 | } |
| 6349 | |
| 6350 | if (resultType == ValType::F32 && viewType == Scalar::Float64) { |
| 6351 | value = f.unary<MToDouble>(value); |
| 6352 | } else if (resultType == ValType::F64 && viewType == Scalar::Float32) { |
| 6353 | value = f.unary<MToFloat32>(value); |
| 6354 | } else { |
| 6355 | MOZ_CRASH("unexpected coerced store")do { do { } while (false); MOZ_ReportCrash("" "unexpected coerced store" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 6355); AnnotateMozCrashReason("MOZ_CRASH(" "unexpected coerced store" ")"); do { *((volatile int*)__null) = 6355; __attribute__((nomerge )) ::abort(); } while (false); } while (false); |
| 6356 | } |
| 6357 | |
| 6358 | MOZ_ASSERT(f.isMem32(addr.memoryIndex))do { static_assert( mozilla::detail::AssertionConditionType< decltype(f.isMem32(addr.memoryIndex))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(f.isMem32(addr.memoryIndex)) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("f.isMem32(addr.memoryIndex)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 6358); AnnotateMozCrashReason("MOZ_ASSERT" "(" "f.isMem32(addr.memoryIndex)" ")"); do { *((volatile int*)__null) = 6358; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); // asm.js opcode |
| 6359 | MemoryAccessDesc access(addr.memoryIndex, viewType, addr.align, addr.offset, |
| 6360 | f.bytecodeIfNotAsmJS(), |
| 6361 | f.hugeMemoryEnabled(addr.memoryIndex)); |
| 6362 | |
| 6363 | f.store(addr.base, &access, value); |
| 6364 | return true; |
| 6365 | } |
| 6366 | |
| 6367 | static bool TryInlineUnaryBuiltin(FunctionCompiler& f, SymbolicAddress callee, |
| 6368 | MDefinition* input) { |
| 6369 | if (!input) { |
| 6370 | return false; |
| 6371 | } |
| 6372 | |
| 6373 | MOZ_ASSERT(IsFloatingPointType(input->type()))do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsFloatingPointType(input->type()))>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(IsFloatingPointType(input->type())))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("IsFloatingPointType(input->type())" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 6373); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsFloatingPointType(input->type())" ")"); do { *((volatile int*)__null) = 6373; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6374 | |
| 6375 | RoundingMode mode; |
| 6376 | if (!IsRoundingFunction(callee, &mode)) { |
| 6377 | return false; |
| 6378 | } |
| 6379 | |
| 6380 | if (!MNearbyInt::HasAssemblerSupport(mode)) { |
| 6381 | return false; |
| 6382 | } |
| 6383 | |
| 6384 | f.iter().setResult(f.nearbyInt(input, mode)); |
| 6385 | return true; |
| 6386 | } |
| 6387 | |
| 6388 | static bool EmitUnaryMathBuiltinCall(FunctionCompiler& f, |
| 6389 | const SymbolicAddressSignature& callee) { |
| 6390 | MOZ_ASSERT(callee.numArgs == 1)do { static_assert( mozilla::detail::AssertionConditionType< decltype(callee.numArgs == 1)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(callee.numArgs == 1))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("callee.numArgs == 1" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 6390); AnnotateMozCrashReason("MOZ_ASSERT" "(" "callee.numArgs == 1" ")"); do { *((volatile int*)__null) = 6390; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6391 | |
| 6392 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 6393 | |
| 6394 | MDefinition* input; |
| 6395 | if (!f.iter().readUnary(ValType::fromMIRType(callee.argTypes[0]), &input)) { |
| 6396 | return false; |
| 6397 | } |
| 6398 | |
| 6399 | if (TryInlineUnaryBuiltin(f, callee.identity, input)) { |
| 6400 | return true; |
| 6401 | } |
| 6402 | |
| 6403 | CallCompileState call; |
| 6404 | if (!f.passArg(input, callee.argTypes[0], &call)) { |
| 6405 | return false; |
| 6406 | } |
| 6407 | |
| 6408 | if (!f.finishCall(&call)) { |
| 6409 | return false; |
| 6410 | } |
| 6411 | |
| 6412 | MDefinition* def; |
| 6413 | if (!f.builtinCall(callee, lineOrBytecode, call, &def)) { |
| 6414 | return false; |
| 6415 | } |
| 6416 | |
| 6417 | f.iter().setResult(def); |
| 6418 | return true; |
| 6419 | } |
| 6420 | |
| 6421 | static bool EmitBinaryMathBuiltinCall(FunctionCompiler& f, |
| 6422 | const SymbolicAddressSignature& callee) { |
| 6423 | MOZ_ASSERT(callee.numArgs == 2)do { static_assert( mozilla::detail::AssertionConditionType< decltype(callee.numArgs == 2)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(callee.numArgs == 2))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("callee.numArgs == 2" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 6423); AnnotateMozCrashReason("MOZ_ASSERT" "(" "callee.numArgs == 2" ")"); do { *((volatile int*)__null) = 6423; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6424 | MOZ_ASSERT(callee.argTypes[0] == callee.argTypes[1])do { static_assert( mozilla::detail::AssertionConditionType< decltype(callee.argTypes[0] == callee.argTypes[1])>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(callee.argTypes[0] == callee.argTypes[1]))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("callee.argTypes[0] == callee.argTypes[1]" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 6424); AnnotateMozCrashReason("MOZ_ASSERT" "(" "callee.argTypes[0] == callee.argTypes[1]" ")"); do { *((volatile int*)__null) = 6424; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6425 | |
| 6426 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 6427 | |
| 6428 | CallCompileState call; |
| 6429 | MDefinition* lhs; |
| 6430 | MDefinition* rhs; |
| 6431 | // This call to readBinary assumes both operands have the same type. |
| 6432 | if (!f.iter().readBinary(ValType::fromMIRType(callee.argTypes[0]), &lhs, |
| 6433 | &rhs)) { |
| 6434 | return false; |
| 6435 | } |
| 6436 | |
| 6437 | if (!f.passArg(lhs, callee.argTypes[0], &call)) { |
| 6438 | return false; |
| 6439 | } |
| 6440 | |
| 6441 | if (!f.passArg(rhs, callee.argTypes[1], &call)) { |
| 6442 | return false; |
| 6443 | } |
| 6444 | |
| 6445 | if (!f.finishCall(&call)) { |
| 6446 | return false; |
| 6447 | } |
| 6448 | |
| 6449 | MDefinition* def; |
| 6450 | if (!f.builtinCall(callee, lineOrBytecode, call, &def)) { |
| 6451 | return false; |
| 6452 | } |
| 6453 | |
| 6454 | f.iter().setResult(def); |
| 6455 | return true; |
| 6456 | } |
| 6457 | |
| 6458 | static bool EmitMemoryGrow(FunctionCompiler& f) { |
| 6459 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 6460 | |
| 6461 | MDefinition* delta; |
| 6462 | uint32_t memoryIndex; |
| 6463 | if (!f.iter().readMemoryGrow(&memoryIndex, &delta)) { |
| 6464 | return false; |
| 6465 | } |
| 6466 | |
| 6467 | if (f.inDeadCode()) { |
| 6468 | return true; |
| 6469 | } |
| 6470 | |
| 6471 | MDefinition* memoryIndexValue = f.constantI32(int32_t(memoryIndex)); |
| 6472 | if (!memoryIndexValue) { |
| 6473 | return false; |
| 6474 | } |
| 6475 | |
| 6476 | const SymbolicAddressSignature& callee = |
| 6477 | f.isMem32(memoryIndex) ? SASigMemoryGrowM32 : SASigMemoryGrowM64; |
| 6478 | |
| 6479 | MDefinition* ret; |
| 6480 | if (!f.emitInstanceCall2(bytecodeOffset, callee, delta, memoryIndexValue, |
| 6481 | &ret)) { |
| 6482 | return false; |
| 6483 | } |
| 6484 | |
| 6485 | f.iter().setResult(ret); |
| 6486 | return true; |
| 6487 | } |
| 6488 | |
| 6489 | static bool EmitMemorySize(FunctionCompiler& f) { |
| 6490 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 6491 | |
| 6492 | uint32_t memoryIndex; |
| 6493 | if (!f.iter().readMemorySize(&memoryIndex)) { |
| 6494 | return false; |
| 6495 | } |
| 6496 | |
| 6497 | if (f.inDeadCode()) { |
| 6498 | return true; |
| 6499 | } |
| 6500 | |
| 6501 | MDefinition* memoryIndexValue = f.constantI32(int32_t(memoryIndex)); |
| 6502 | if (!memoryIndexValue) { |
| 6503 | return false; |
| 6504 | } |
| 6505 | |
| 6506 | const SymbolicAddressSignature& callee = |
| 6507 | f.isMem32(memoryIndex) ? SASigMemorySizeM32 : SASigMemorySizeM64; |
| 6508 | |
| 6509 | MDefinition* ret; |
| 6510 | if (!f.emitInstanceCall1(bytecodeOffset, callee, memoryIndexValue, &ret)) { |
| 6511 | return false; |
| 6512 | } |
| 6513 | |
| 6514 | f.iter().setResult(ret); |
| 6515 | return true; |
| 6516 | } |
| 6517 | |
| 6518 | static bool EmitAtomicCmpXchg(FunctionCompiler& f, ValType type, |
| 6519 | Scalar::Type viewType) { |
| 6520 | LinearMemoryAddress<MDefinition*> addr; |
| 6521 | MDefinition* oldValue; |
| 6522 | MDefinition* newValue; |
| 6523 | if (!f.iter().readAtomicCmpXchg(&addr, type, byteSize(viewType), &oldValue, |
| 6524 | &newValue)) { |
| 6525 | return false; |
| 6526 | } |
| 6527 | |
| 6528 | MemoryAccessDesc access( |
| 6529 | addr.memoryIndex, viewType, addr.align, addr.offset, f.bytecodeOffset(), |
| 6530 | f.hugeMemoryEnabled(addr.memoryIndex), Synchronization::Full()); |
| 6531 | auto* ins = |
| 6532 | f.atomicCompareExchangeHeap(addr.base, &access, type, oldValue, newValue); |
| 6533 | if (!f.inDeadCode() && !ins) { |
| 6534 | return false; |
| 6535 | } |
| 6536 | |
| 6537 | f.iter().setResult(ins); |
| 6538 | return true; |
| 6539 | } |
| 6540 | |
| 6541 | static bool EmitAtomicLoad(FunctionCompiler& f, ValType type, |
| 6542 | Scalar::Type viewType) { |
| 6543 | LinearMemoryAddress<MDefinition*> addr; |
| 6544 | if (!f.iter().readAtomicLoad(&addr, type, byteSize(viewType))) { |
| 6545 | return false; |
| 6546 | } |
| 6547 | |
| 6548 | MemoryAccessDesc access( |
| 6549 | addr.memoryIndex, viewType, addr.align, addr.offset, f.bytecodeOffset(), |
| 6550 | f.hugeMemoryEnabled(addr.memoryIndex), Synchronization::Load()); |
| 6551 | auto* ins = f.load(addr.base, &access, type); |
| 6552 | if (!f.inDeadCode() && !ins) { |
| 6553 | return false; |
| 6554 | } |
| 6555 | |
| 6556 | f.iter().setResult(ins); |
| 6557 | return true; |
| 6558 | } |
| 6559 | |
| 6560 | static bool EmitAtomicRMW(FunctionCompiler& f, ValType type, |
| 6561 | Scalar::Type viewType, jit::AtomicOp op) { |
| 6562 | LinearMemoryAddress<MDefinition*> addr; |
| 6563 | MDefinition* value; |
| 6564 | if (!f.iter().readAtomicRMW(&addr, type, byteSize(viewType), &value)) { |
| 6565 | return false; |
| 6566 | } |
| 6567 | |
| 6568 | MemoryAccessDesc access( |
| 6569 | addr.memoryIndex, viewType, addr.align, addr.offset, f.bytecodeOffset(), |
| 6570 | f.hugeMemoryEnabled(addr.memoryIndex), Synchronization::Full()); |
| 6571 | auto* ins = f.atomicBinopHeap(op, addr.base, &access, type, value); |
| 6572 | if (!f.inDeadCode() && !ins) { |
| 6573 | return false; |
| 6574 | } |
| 6575 | |
| 6576 | f.iter().setResult(ins); |
| 6577 | return true; |
| 6578 | } |
| 6579 | |
| 6580 | static bool EmitAtomicStore(FunctionCompiler& f, ValType type, |
| 6581 | Scalar::Type viewType) { |
| 6582 | LinearMemoryAddress<MDefinition*> addr; |
| 6583 | MDefinition* value; |
| 6584 | if (!f.iter().readAtomicStore(&addr, type, byteSize(viewType), &value)) { |
| 6585 | return false; |
| 6586 | } |
| 6587 | |
| 6588 | MemoryAccessDesc access( |
| 6589 | addr.memoryIndex, viewType, addr.align, addr.offset, f.bytecodeOffset(), |
| 6590 | f.hugeMemoryEnabled(addr.memoryIndex), Synchronization::Store()); |
| 6591 | f.store(addr.base, &access, value); |
| 6592 | return true; |
| 6593 | } |
| 6594 | |
| 6595 | static bool EmitWait(FunctionCompiler& f, ValType type, uint32_t byteSize) { |
| 6596 | MOZ_ASSERT(type == ValType::I32 || type == ValType::I64)do { static_assert( mozilla::detail::AssertionConditionType< decltype(type == ValType::I32 || type == ValType::I64)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(type == ValType::I32 || type == ValType::I64))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("type == ValType::I32 || type == ValType::I64" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 6596); AnnotateMozCrashReason("MOZ_ASSERT" "(" "type == ValType::I32 || type == ValType::I64" ")"); do { *((volatile int*)__null) = 6596; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6597 | MOZ_ASSERT(type.size() == byteSize)do { static_assert( mozilla::detail::AssertionConditionType< decltype(type.size() == byteSize)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(type.size() == byteSize))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("type.size() == byteSize" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 6597); AnnotateMozCrashReason("MOZ_ASSERT" "(" "type.size() == byteSize" ")"); do { *((volatile int*)__null) = 6597; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6598 | |
| 6599 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 6600 | |
| 6601 | LinearMemoryAddress<MDefinition*> addr; |
| 6602 | MDefinition* expected; |
| 6603 | MDefinition* timeout; |
| 6604 | if (!f.iter().readWait(&addr, type, byteSize, &expected, &timeout)) { |
| 6605 | return false; |
| 6606 | } |
| 6607 | |
| 6608 | if (f.inDeadCode()) { |
| 6609 | return true; |
| 6610 | } |
| 6611 | |
| 6612 | MemoryAccessDesc access(addr.memoryIndex, |
| 6613 | type == ValType::I32 ? Scalar::Int32 : Scalar::Int64, |
| 6614 | addr.align, addr.offset, f.bytecodeOffset(), |
| 6615 | f.hugeMemoryEnabled(addr.memoryIndex)); |
| 6616 | MDefinition* ptr = f.computeEffectiveAddress(addr.base, &access); |
| 6617 | if (!ptr) { |
| 6618 | return false; |
| 6619 | } |
| 6620 | |
| 6621 | MDefinition* memoryIndex = f.constantI32(int32_t(addr.memoryIndex)); |
| 6622 | if (!memoryIndex) { |
| 6623 | return false; |
| 6624 | } |
| 6625 | |
| 6626 | const SymbolicAddressSignature& callee = |
| 6627 | f.isMem32(addr.memoryIndex) |
| 6628 | ? (type == ValType::I32 ? SASigWaitI32M32 : SASigWaitI64M32) |
| 6629 | : (type == ValType::I32 ? SASigWaitI32M64 : SASigWaitI64M64); |
| 6630 | |
| 6631 | MDefinition* ret; |
| 6632 | if (!f.emitInstanceCall4(bytecodeOffset, callee, ptr, expected, timeout, |
| 6633 | memoryIndex, &ret)) { |
| 6634 | return false; |
| 6635 | } |
| 6636 | |
| 6637 | f.iter().setResult(ret); |
| 6638 | return true; |
| 6639 | } |
| 6640 | |
| 6641 | static bool EmitFence(FunctionCompiler& f) { |
| 6642 | if (!f.iter().readFence()) { |
| 6643 | return false; |
| 6644 | } |
| 6645 | |
| 6646 | f.fence(); |
| 6647 | return true; |
| 6648 | } |
| 6649 | |
| 6650 | static bool EmitWake(FunctionCompiler& f) { |
| 6651 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 6652 | |
| 6653 | LinearMemoryAddress<MDefinition*> addr; |
| 6654 | MDefinition* count; |
| 6655 | if (!f.iter().readWake(&addr, &count)) { |
| 6656 | return false; |
| 6657 | } |
| 6658 | |
| 6659 | if (f.inDeadCode()) { |
| 6660 | return true; |
| 6661 | } |
| 6662 | |
| 6663 | MemoryAccessDesc access(addr.memoryIndex, Scalar::Int32, addr.align, |
| 6664 | addr.offset, f.bytecodeOffset(), |
| 6665 | f.hugeMemoryEnabled(addr.memoryIndex)); |
| 6666 | MDefinition* ptr = f.computeEffectiveAddress(addr.base, &access); |
| 6667 | if (!ptr) { |
| 6668 | return false; |
| 6669 | } |
| 6670 | |
| 6671 | MDefinition* memoryIndex = f.constantI32(int32_t(addr.memoryIndex)); |
| 6672 | if (!memoryIndex) { |
| 6673 | return false; |
| 6674 | } |
| 6675 | |
| 6676 | const SymbolicAddressSignature& callee = |
| 6677 | f.isMem32(addr.memoryIndex) ? SASigWakeM32 : SASigWakeM64; |
| 6678 | |
| 6679 | MDefinition* ret; |
| 6680 | if (!f.emitInstanceCall3(bytecodeOffset, callee, ptr, count, memoryIndex, |
| 6681 | &ret)) { |
| 6682 | return false; |
| 6683 | } |
| 6684 | |
| 6685 | f.iter().setResult(ret); |
| 6686 | return true; |
| 6687 | } |
| 6688 | |
| 6689 | static bool EmitAtomicXchg(FunctionCompiler& f, ValType type, |
| 6690 | Scalar::Type viewType) { |
| 6691 | LinearMemoryAddress<MDefinition*> addr; |
| 6692 | MDefinition* value; |
| 6693 | if (!f.iter().readAtomicRMW(&addr, type, byteSize(viewType), &value)) { |
| 6694 | return false; |
| 6695 | } |
| 6696 | |
| 6697 | MemoryAccessDesc access( |
| 6698 | addr.memoryIndex, viewType, addr.align, addr.offset, f.bytecodeOffset(), |
| 6699 | f.hugeMemoryEnabled(addr.memoryIndex), Synchronization::Full()); |
| 6700 | MDefinition* ins = f.atomicExchangeHeap(addr.base, &access, type, value); |
| 6701 | if (!f.inDeadCode() && !ins) { |
| 6702 | return false; |
| 6703 | } |
| 6704 | |
| 6705 | f.iter().setResult(ins); |
| 6706 | return true; |
| 6707 | } |
| 6708 | |
| 6709 | static bool EmitMemCopyCall(FunctionCompiler& f, uint32_t dstMemIndex, |
| 6710 | uint32_t srcMemIndex, MDefinition* dst, |
| 6711 | MDefinition* src, MDefinition* len) { |
| 6712 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 6713 | |
| 6714 | if (dstMemIndex == srcMemIndex) { |
| 6715 | const SymbolicAddressSignature& callee = |
| 6716 | (f.codeMeta().usesSharedMemory(dstMemIndex) |
| 6717 | ? (f.isMem32(dstMemIndex) ? SASigMemCopySharedM32 |
| 6718 | : SASigMemCopySharedM64) |
| 6719 | : (f.isMem32(dstMemIndex) ? SASigMemCopyM32 : SASigMemCopyM64)); |
| 6720 | MDefinition* memoryBase = f.memoryBase(dstMemIndex); |
| 6721 | if (!memoryBase) { |
| 6722 | return false; |
| 6723 | } |
| 6724 | return f.emitInstanceCall4(bytecodeOffset, callee, dst, src, len, |
| 6725 | memoryBase); |
| 6726 | } |
| 6727 | |
| 6728 | IndexType dstIndexType = f.codeMeta().memories[dstMemIndex].indexType(); |
| 6729 | IndexType srcIndexType = f.codeMeta().memories[srcMemIndex].indexType(); |
| 6730 | |
| 6731 | if (dstIndexType == IndexType::I32) { |
| 6732 | dst = f.extendI32(dst, /*isUnsigned=*/true); |
| 6733 | if (!dst) { |
| 6734 | return false; |
| 6735 | } |
| 6736 | } |
| 6737 | if (srcIndexType == IndexType::I32) { |
| 6738 | src = f.extendI32(src, /*isUnsigned=*/true); |
| 6739 | if (!src) { |
| 6740 | return false; |
| 6741 | } |
| 6742 | } |
| 6743 | if (dstIndexType == IndexType::I32 || srcIndexType == IndexType::I32) { |
| 6744 | len = f.extendI32(len, /*isUnsigned=*/true); |
| 6745 | if (!len) { |
| 6746 | return false; |
| 6747 | } |
| 6748 | } |
| 6749 | |
| 6750 | MDefinition* dstMemIndexValue = f.constantI32(int32_t(dstMemIndex)); |
| 6751 | if (!dstMemIndexValue) { |
| 6752 | return false; |
| 6753 | } |
| 6754 | |
| 6755 | MDefinition* srcMemIndexValue = f.constantI32(int32_t(srcMemIndex)); |
| 6756 | if (!srcMemIndexValue) { |
| 6757 | return false; |
| 6758 | } |
| 6759 | |
| 6760 | return f.emitInstanceCall5(bytecodeOffset, SASigMemCopyAny, dst, src, len, |
| 6761 | dstMemIndexValue, srcMemIndexValue); |
| 6762 | } |
| 6763 | |
| 6764 | static bool EmitMemCopyInline(FunctionCompiler& f, uint32_t memoryIndex, |
| 6765 | MDefinition* dst, MDefinition* src, |
| 6766 | uint32_t length) { |
| 6767 | MOZ_ASSERT(length != 0 && length <= MaxInlineMemoryCopyLength)do { static_assert( mozilla::detail::AssertionConditionType< decltype(length != 0 && length <= MaxInlineMemoryCopyLength )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(length != 0 && length <= MaxInlineMemoryCopyLength ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "length != 0 && length <= MaxInlineMemoryCopyLength" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 6767); AnnotateMozCrashReason("MOZ_ASSERT" "(" "length != 0 && length <= MaxInlineMemoryCopyLength" ")"); do { *((volatile int*)__null) = 6767; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6768 | |
| 6769 | // Compute the number of copies of each width we will need to do |
| 6770 | size_t remainder = length; |
| 6771 | #ifdef ENABLE_WASM_SIMD1 |
| 6772 | size_t numCopies16 = 0; |
| 6773 | if (MacroAssembler::SupportsFastUnalignedFPAccesses()) { |
| 6774 | numCopies16 = remainder / sizeof(V128); |
| 6775 | remainder %= sizeof(V128); |
| 6776 | } |
| 6777 | #endif |
| 6778 | #ifdef JS_64BIT1 |
| 6779 | size_t numCopies8 = remainder / sizeof(uint64_t); |
| 6780 | remainder %= sizeof(uint64_t); |
| 6781 | #endif |
| 6782 | size_t numCopies4 = remainder / sizeof(uint32_t); |
| 6783 | remainder %= sizeof(uint32_t); |
| 6784 | size_t numCopies2 = remainder / sizeof(uint16_t); |
| 6785 | remainder %= sizeof(uint16_t); |
| 6786 | size_t numCopies1 = remainder; |
| 6787 | |
| 6788 | // Load all source bytes from low to high using the widest transfer width we |
| 6789 | // can for the system. We will trap without writing anything if any source |
| 6790 | // byte is out-of-bounds. |
| 6791 | size_t offset = 0; |
| 6792 | DefVector loadedValues; |
| 6793 | |
| 6794 | #ifdef ENABLE_WASM_SIMD1 |
| 6795 | for (uint32_t i = 0; i < numCopies16; i++) { |
| 6796 | MemoryAccessDesc access(memoryIndex, Scalar::Simd128, 1, offset, |
| 6797 | f.bytecodeOffset(), |
| 6798 | f.hugeMemoryEnabled(memoryIndex)); |
| 6799 | auto* load = f.load(src, &access, ValType::V128); |
| 6800 | if (!load || !loadedValues.append(load)) { |
| 6801 | return false; |
| 6802 | } |
| 6803 | |
| 6804 | offset += sizeof(V128); |
| 6805 | } |
| 6806 | #endif |
| 6807 | |
| 6808 | #ifdef JS_64BIT1 |
| 6809 | for (uint32_t i = 0; i < numCopies8; i++) { |
| 6810 | MemoryAccessDesc access(memoryIndex, Scalar::Int64, 1, offset, |
| 6811 | f.bytecodeOffset(), |
| 6812 | f.hugeMemoryEnabled(memoryIndex)); |
| 6813 | auto* load = f.load(src, &access, ValType::I64); |
| 6814 | if (!load || !loadedValues.append(load)) { |
| 6815 | return false; |
| 6816 | } |
| 6817 | |
| 6818 | offset += sizeof(uint64_t); |
| 6819 | } |
| 6820 | #endif |
| 6821 | |
| 6822 | for (uint32_t i = 0; i < numCopies4; i++) { |
| 6823 | MemoryAccessDesc access(memoryIndex, Scalar::Uint32, 1, offset, |
| 6824 | f.bytecodeOffset(), |
| 6825 | f.hugeMemoryEnabled(memoryIndex)); |
| 6826 | auto* load = f.load(src, &access, ValType::I32); |
| 6827 | if (!load || !loadedValues.append(load)) { |
| 6828 | return false; |
| 6829 | } |
| 6830 | |
| 6831 | offset += sizeof(uint32_t); |
| 6832 | } |
| 6833 | |
| 6834 | if (numCopies2) { |
| 6835 | MemoryAccessDesc access(memoryIndex, Scalar::Uint16, 1, offset, |
| 6836 | f.bytecodeOffset(), |
| 6837 | f.hugeMemoryEnabled(memoryIndex)); |
| 6838 | auto* load = f.load(src, &access, ValType::I32); |
| 6839 | if (!load || !loadedValues.append(load)) { |
| 6840 | return false; |
| 6841 | } |
| 6842 | |
| 6843 | offset += sizeof(uint16_t); |
| 6844 | } |
| 6845 | |
| 6846 | if (numCopies1) { |
| 6847 | MemoryAccessDesc access(memoryIndex, Scalar::Uint8, 1, offset, |
| 6848 | f.bytecodeOffset(), |
| 6849 | f.hugeMemoryEnabled(memoryIndex)); |
| 6850 | auto* load = f.load(src, &access, ValType::I32); |
| 6851 | if (!load || !loadedValues.append(load)) { |
| 6852 | return false; |
| 6853 | } |
| 6854 | } |
| 6855 | |
| 6856 | // Store all source bytes to the destination from high to low. We will trap |
| 6857 | // without writing anything on the first store if any dest byte is |
| 6858 | // out-of-bounds. |
| 6859 | offset = length; |
| 6860 | |
| 6861 | if (numCopies1) { |
| 6862 | offset -= sizeof(uint8_t); |
| 6863 | |
| 6864 | MemoryAccessDesc access(memoryIndex, Scalar::Uint8, 1, offset, |
| 6865 | f.bytecodeOffset(), |
| 6866 | f.hugeMemoryEnabled(memoryIndex)); |
| 6867 | auto* value = loadedValues.popCopy(); |
| 6868 | f.store(dst, &access, value); |
| 6869 | } |
| 6870 | |
| 6871 | if (numCopies2) { |
| 6872 | offset -= sizeof(uint16_t); |
| 6873 | |
| 6874 | MemoryAccessDesc access(memoryIndex, Scalar::Uint16, 1, offset, |
| 6875 | f.bytecodeOffset(), |
| 6876 | f.hugeMemoryEnabled(memoryIndex)); |
| 6877 | auto* value = loadedValues.popCopy(); |
| 6878 | f.store(dst, &access, value); |
| 6879 | } |
| 6880 | |
| 6881 | for (uint32_t i = 0; i < numCopies4; i++) { |
| 6882 | offset -= sizeof(uint32_t); |
| 6883 | |
| 6884 | MemoryAccessDesc access(memoryIndex, Scalar::Uint32, 1, offset, |
| 6885 | f.bytecodeOffset(), |
| 6886 | f.hugeMemoryEnabled(memoryIndex)); |
| 6887 | auto* value = loadedValues.popCopy(); |
| 6888 | f.store(dst, &access, value); |
| 6889 | } |
| 6890 | |
| 6891 | #ifdef JS_64BIT1 |
| 6892 | for (uint32_t i = 0; i < numCopies8; i++) { |
| 6893 | offset -= sizeof(uint64_t); |
| 6894 | |
| 6895 | MemoryAccessDesc access(memoryIndex, Scalar::Int64, 1, offset, |
| 6896 | f.bytecodeOffset(), |
| 6897 | f.hugeMemoryEnabled(memoryIndex)); |
| 6898 | auto* value = loadedValues.popCopy(); |
| 6899 | f.store(dst, &access, value); |
| 6900 | } |
| 6901 | #endif |
| 6902 | |
| 6903 | #ifdef ENABLE_WASM_SIMD1 |
| 6904 | for (uint32_t i = 0; i < numCopies16; i++) { |
| 6905 | offset -= sizeof(V128); |
| 6906 | |
| 6907 | MemoryAccessDesc access(memoryIndex, Scalar::Simd128, 1, offset, |
| 6908 | f.bytecodeOffset(), |
| 6909 | f.hugeMemoryEnabled(memoryIndex)); |
| 6910 | auto* value = loadedValues.popCopy(); |
| 6911 | f.store(dst, &access, value); |
| 6912 | } |
| 6913 | #endif |
| 6914 | |
| 6915 | return true; |
| 6916 | } |
| 6917 | |
| 6918 | static bool EmitMemCopy(FunctionCompiler& f) { |
| 6919 | MDefinition *dst, *src, *len; |
| 6920 | uint32_t dstMemIndex; |
| 6921 | uint32_t srcMemIndex; |
| 6922 | if (!f.iter().readMemOrTableCopy(true, &dstMemIndex, &dst, &srcMemIndex, &src, |
| 6923 | &len)) { |
| 6924 | return false; |
| 6925 | } |
| 6926 | |
| 6927 | if (f.inDeadCode()) { |
| 6928 | return true; |
| 6929 | } |
| 6930 | |
| 6931 | if (dstMemIndex == srcMemIndex && len->isConstant()) { |
| 6932 | uint64_t length = f.isMem32(dstMemIndex) ? len->toConstant()->toInt32() |
| 6933 | : len->toConstant()->toInt64(); |
| 6934 | static_assert(MaxInlineMemoryCopyLength <= UINT32_MAX(4294967295U)); |
| 6935 | if (length != 0 && length <= MaxInlineMemoryCopyLength) { |
| 6936 | return EmitMemCopyInline(f, dstMemIndex, dst, src, uint32_t(length)); |
| 6937 | } |
| 6938 | } |
| 6939 | |
| 6940 | return EmitMemCopyCall(f, dstMemIndex, srcMemIndex, dst, src, len); |
| 6941 | } |
| 6942 | |
| 6943 | static bool EmitTableCopy(FunctionCompiler& f) { |
| 6944 | MDefinition *dst, *src, *len; |
| 6945 | uint32_t dstTableIndex; |
| 6946 | uint32_t srcTableIndex; |
| 6947 | if (!f.iter().readMemOrTableCopy(false, &dstTableIndex, &dst, &srcTableIndex, |
| 6948 | &src, &len)) { |
| 6949 | return false; |
| 6950 | } |
| 6951 | |
| 6952 | if (f.inDeadCode()) { |
| 6953 | return true; |
| 6954 | } |
| 6955 | |
| 6956 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 6957 | const TableDesc& dstTable = f.codeMeta().tables[dstTableIndex]; |
| 6958 | const TableDesc& srcTable = f.codeMeta().tables[srcTableIndex]; |
| 6959 | |
| 6960 | IndexType dstIndexType = dstTable.indexType(); |
| 6961 | IndexType srcIndexType = srcTable.indexType(); |
| 6962 | IndexType lenIndexType = |
| 6963 | dstIndexType == IndexType::I64 && srcIndexType == IndexType::I64 |
| 6964 | ? IndexType::I64 |
| 6965 | : IndexType::I32; |
| 6966 | |
| 6967 | MDefinition* dst32 = f.tableIndexToI32(dstIndexType, dst); |
| 6968 | if (!dst32) { |
| 6969 | return false; |
| 6970 | } |
| 6971 | |
| 6972 | MDefinition* src32 = f.tableIndexToI32(srcIndexType, src); |
| 6973 | if (!src32) { |
| 6974 | return false; |
| 6975 | } |
| 6976 | |
| 6977 | MDefinition* len32 = f.tableIndexToI32(lenIndexType, len); |
| 6978 | if (!len32) { |
| 6979 | return false; |
| 6980 | } |
| 6981 | |
| 6982 | MDefinition* dti = f.constantI32(int32_t(dstTableIndex)); |
| 6983 | MDefinition* sti = f.constantI32(int32_t(srcTableIndex)); |
| 6984 | |
| 6985 | return f.emitInstanceCall5(bytecodeOffset, SASigTableCopy, dst32, src32, |
| 6986 | len32, dti, sti); |
| 6987 | } |
| 6988 | |
| 6989 | static bool EmitDataOrElemDrop(FunctionCompiler& f, bool isData) { |
| 6990 | uint32_t segIndexVal = 0; |
| 6991 | if (!f.iter().readDataOrElemDrop(isData, &segIndexVal)) { |
| 6992 | return false; |
| 6993 | } |
| 6994 | |
| 6995 | if (f.inDeadCode()) { |
| 6996 | return true; |
| 6997 | } |
| 6998 | |
| 6999 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 7000 | |
| 7001 | MDefinition* segIndex = f.constantI32(int32_t(segIndexVal)); |
| 7002 | |
| 7003 | const SymbolicAddressSignature& callee = |
| 7004 | isData ? SASigDataDrop : SASigElemDrop; |
| 7005 | return f.emitInstanceCall1(bytecodeOffset, callee, segIndex); |
| 7006 | } |
| 7007 | |
| 7008 | static bool EmitMemFillCall(FunctionCompiler& f, uint32_t memoryIndex, |
| 7009 | MDefinition* start, MDefinition* val, |
| 7010 | MDefinition* len) { |
| 7011 | MDefinition* memoryBase = f.memoryBase(memoryIndex); |
| 7012 | |
| 7013 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 7014 | const SymbolicAddressSignature& callee = |
| 7015 | (f.codeMeta().usesSharedMemory(memoryIndex) |
| 7016 | ? (f.isMem32(memoryIndex) ? SASigMemFillSharedM32 |
| 7017 | : SASigMemFillSharedM64) |
| 7018 | : (f.isMem32(memoryIndex) ? SASigMemFillM32 : SASigMemFillM64)); |
| 7019 | return f.emitInstanceCall4(bytecodeOffset, callee, start, val, len, |
| 7020 | memoryBase); |
| 7021 | } |
| 7022 | |
| 7023 | static bool EmitMemFillInline(FunctionCompiler& f, uint32_t memoryIndex, |
| 7024 | MDefinition* start, MDefinition* val, |
| 7025 | uint32_t length) { |
| 7026 | MOZ_ASSERT(length != 0 && length <= MaxInlineMemoryFillLength)do { static_assert( mozilla::detail::AssertionConditionType< decltype(length != 0 && length <= MaxInlineMemoryFillLength )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(length != 0 && length <= MaxInlineMemoryFillLength ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "length != 0 && length <= MaxInlineMemoryFillLength" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 7026); AnnotateMozCrashReason("MOZ_ASSERT" "(" "length != 0 && length <= MaxInlineMemoryFillLength" ")"); do { *((volatile int*)__null) = 7026; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7027 | uint32_t value = val->toConstant()->toInt32(); |
| 7028 | |
| 7029 | // Compute the number of copies of each width we will need to do |
| 7030 | size_t remainder = length; |
| 7031 | #ifdef ENABLE_WASM_SIMD1 |
| 7032 | size_t numCopies16 = 0; |
| 7033 | if (MacroAssembler::SupportsFastUnalignedFPAccesses()) { |
| 7034 | numCopies16 = remainder / sizeof(V128); |
| 7035 | remainder %= sizeof(V128); |
| 7036 | } |
| 7037 | #endif |
| 7038 | #ifdef JS_64BIT1 |
| 7039 | size_t numCopies8 = remainder / sizeof(uint64_t); |
| 7040 | remainder %= sizeof(uint64_t); |
| 7041 | #endif |
| 7042 | size_t numCopies4 = remainder / sizeof(uint32_t); |
| 7043 | remainder %= sizeof(uint32_t); |
| 7044 | size_t numCopies2 = remainder / sizeof(uint16_t); |
| 7045 | remainder %= sizeof(uint16_t); |
| 7046 | size_t numCopies1 = remainder; |
| 7047 | |
| 7048 | // Generate splatted definitions for wider fills as needed |
| 7049 | #ifdef ENABLE_WASM_SIMD1 |
| 7050 | MDefinition* val16 = numCopies16 ? f.constantV128(V128(value)) : nullptr; |
| 7051 | #endif |
| 7052 | #ifdef JS_64BIT1 |
| 7053 | MDefinition* val8 = |
| 7054 | numCopies8 ? f.constantI64(int64_t(SplatByteToUInt<uint64_t>(value, 8))) |
| 7055 | : nullptr; |
| 7056 | #endif |
| 7057 | MDefinition* val4 = |
| 7058 | numCopies4 ? f.constantI32(int32_t(SplatByteToUInt<uint32_t>(value, 4))) |
| 7059 | : nullptr; |
| 7060 | MDefinition* val2 = |
| 7061 | numCopies2 ? f.constantI32(int32_t(SplatByteToUInt<uint32_t>(value, 2))) |
| 7062 | : nullptr; |
| 7063 | |
| 7064 | // Store the fill value to the destination from high to low. We will trap |
| 7065 | // without writing anything on the first store if any dest byte is |
| 7066 | // out-of-bounds. |
| 7067 | size_t offset = length; |
| 7068 | |
| 7069 | if (numCopies1) { |
| 7070 | offset -= sizeof(uint8_t); |
| 7071 | |
| 7072 | MemoryAccessDesc access(memoryIndex, Scalar::Uint8, 1, offset, |
| 7073 | f.bytecodeOffset(), |
| 7074 | f.hugeMemoryEnabled(memoryIndex)); |
| 7075 | f.store(start, &access, val); |
| 7076 | } |
| 7077 | |
| 7078 | if (numCopies2) { |
| 7079 | offset -= sizeof(uint16_t); |
| 7080 | |
| 7081 | MemoryAccessDesc access(memoryIndex, Scalar::Uint16, 1, offset, |
| 7082 | f.bytecodeOffset(), |
| 7083 | f.hugeMemoryEnabled(memoryIndex)); |
| 7084 | f.store(start, &access, val2); |
| 7085 | } |
| 7086 | |
| 7087 | for (uint32_t i = 0; i < numCopies4; i++) { |
| 7088 | offset -= sizeof(uint32_t); |
| 7089 | |
| 7090 | MemoryAccessDesc access(memoryIndex, Scalar::Uint32, 1, offset, |
| 7091 | f.bytecodeOffset(), |
| 7092 | f.hugeMemoryEnabled(memoryIndex)); |
| 7093 | f.store(start, &access, val4); |
| 7094 | } |
| 7095 | |
| 7096 | #ifdef JS_64BIT1 |
| 7097 | for (uint32_t i = 0; i < numCopies8; i++) { |
| 7098 | offset -= sizeof(uint64_t); |
| 7099 | |
| 7100 | MemoryAccessDesc access(memoryIndex, Scalar::Int64, 1, offset, |
| 7101 | f.bytecodeOffset(), |
| 7102 | f.hugeMemoryEnabled(memoryIndex)); |
| 7103 | f.store(start, &access, val8); |
| 7104 | } |
| 7105 | #endif |
| 7106 | |
| 7107 | #ifdef ENABLE_WASM_SIMD1 |
| 7108 | for (uint32_t i = 0; i < numCopies16; i++) { |
| 7109 | offset -= sizeof(V128); |
| 7110 | |
| 7111 | MemoryAccessDesc access(memoryIndex, Scalar::Simd128, 1, offset, |
| 7112 | f.bytecodeOffset(), |
| 7113 | f.hugeMemoryEnabled(memoryIndex)); |
| 7114 | f.store(start, &access, val16); |
| 7115 | } |
| 7116 | #endif |
| 7117 | |
| 7118 | return true; |
| 7119 | } |
| 7120 | |
| 7121 | static bool EmitMemFill(FunctionCompiler& f) { |
| 7122 | uint32_t memoryIndex; |
| 7123 | MDefinition *start, *val, *len; |
| 7124 | if (!f.iter().readMemFill(&memoryIndex, &start, &val, &len)) { |
| 7125 | return false; |
| 7126 | } |
| 7127 | |
| 7128 | if (f.inDeadCode()) { |
| 7129 | return true; |
| 7130 | } |
| 7131 | |
| 7132 | if (len->isConstant() && val->isConstant()) { |
| 7133 | uint64_t length = f.isMem32(memoryIndex) ? len->toConstant()->toInt32() |
| 7134 | : len->toConstant()->toInt64(); |
| 7135 | static_assert(MaxInlineMemoryFillLength <= UINT32_MAX(4294967295U)); |
| 7136 | if (length != 0 && length <= MaxInlineMemoryFillLength) { |
| 7137 | return EmitMemFillInline(f, memoryIndex, start, val, uint32_t(length)); |
| 7138 | } |
| 7139 | } |
| 7140 | |
| 7141 | return EmitMemFillCall(f, memoryIndex, start, val, len); |
| 7142 | } |
| 7143 | |
| 7144 | static bool EmitMemInit(FunctionCompiler& f) { |
| 7145 | uint32_t segIndexVal = 0, dstMemIndex = 0; |
| 7146 | MDefinition *dstOff, *srcOff, *len; |
| 7147 | if (!f.iter().readMemOrTableInit(true, &segIndexVal, &dstMemIndex, &dstOff, |
| 7148 | &srcOff, &len)) { |
| 7149 | return false; |
| 7150 | } |
| 7151 | |
| 7152 | if (f.inDeadCode()) { |
| 7153 | return true; |
| 7154 | } |
| 7155 | |
| 7156 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 7157 | const SymbolicAddressSignature& callee = |
| 7158 | (f.isMem32(dstMemIndex) ? SASigMemInitM32 : SASigMemInitM64); |
| 7159 | |
| 7160 | MDefinition* segIndex = f.constantI32(int32_t(segIndexVal)); |
| 7161 | if (!segIndex) { |
| 7162 | return false; |
| 7163 | } |
| 7164 | |
| 7165 | MDefinition* dti = f.constantI32(int32_t(dstMemIndex)); |
| 7166 | if (!dti) { |
| 7167 | return false; |
| 7168 | } |
| 7169 | |
| 7170 | return f.emitInstanceCall5(bytecodeOffset, callee, dstOff, srcOff, len, |
| 7171 | segIndex, dti); |
| 7172 | } |
| 7173 | |
| 7174 | static bool EmitTableInit(FunctionCompiler& f) { |
| 7175 | uint32_t segIndexVal = 0, dstTableIndex = 0; |
| 7176 | MDefinition *dstOff, *srcOff, *len; |
| 7177 | if (!f.iter().readMemOrTableInit(false, &segIndexVal, &dstTableIndex, &dstOff, |
| 7178 | &srcOff, &len)) { |
| 7179 | return false; |
| 7180 | } |
| 7181 | |
| 7182 | if (f.inDeadCode()) { |
| 7183 | return true; |
| 7184 | } |
| 7185 | |
| 7186 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 7187 | const TableDesc& table = f.codeMeta().tables[dstTableIndex]; |
| 7188 | |
| 7189 | MDefinition* dstOff32 = f.tableIndexToI32(table.indexType(), dstOff); |
| 7190 | if (!dstOff32) { |
| 7191 | return false; |
| 7192 | } |
| 7193 | |
| 7194 | MDefinition* segIndex = f.constantI32(int32_t(segIndexVal)); |
| 7195 | if (!segIndex) { |
| 7196 | return false; |
| 7197 | } |
| 7198 | |
| 7199 | MDefinition* dti = f.constantI32(int32_t(dstTableIndex)); |
| 7200 | if (!dti) { |
| 7201 | return false; |
| 7202 | } |
| 7203 | |
| 7204 | return f.emitInstanceCall5(bytecodeOffset, SASigTableInit, dstOff32, srcOff, |
| 7205 | len, segIndex, dti); |
| 7206 | } |
| 7207 | |
| 7208 | static bool EmitTableFill(FunctionCompiler& f) { |
| 7209 | uint32_t tableIndex; |
| 7210 | MDefinition *start, *val, *len; |
| 7211 | if (!f.iter().readTableFill(&tableIndex, &start, &val, &len)) { |
| 7212 | return false; |
| 7213 | } |
| 7214 | |
| 7215 | if (f.inDeadCode()) { |
| 7216 | return true; |
| 7217 | } |
| 7218 | |
| 7219 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 7220 | const TableDesc& table = f.codeMeta().tables[tableIndex]; |
| 7221 | |
| 7222 | MDefinition* start32 = f.tableIndexToI32(table.indexType(), start); |
| 7223 | if (!start32) { |
| 7224 | return false; |
| 7225 | } |
| 7226 | |
| 7227 | MDefinition* len32 = f.tableIndexToI32(table.indexType(), len); |
| 7228 | if (!len32) { |
| 7229 | return false; |
| 7230 | } |
| 7231 | |
| 7232 | MDefinition* tableIndexArg = f.constantI32(int32_t(tableIndex)); |
| 7233 | if (!tableIndexArg) { |
| 7234 | return false; |
| 7235 | } |
| 7236 | |
| 7237 | return f.emitInstanceCall4(bytecodeOffset, SASigTableFill, start32, val, |
| 7238 | len32, tableIndexArg); |
| 7239 | } |
| 7240 | |
| 7241 | #if ENABLE_WASM_MEMORY_CONTROL1 |
| 7242 | static bool EmitMemDiscard(FunctionCompiler& f) { |
| 7243 | uint32_t memoryIndex; |
| 7244 | MDefinition *start, *len; |
| 7245 | if (!f.iter().readMemDiscard(&memoryIndex, &start, &len)) { |
| 7246 | return false; |
| 7247 | } |
| 7248 | |
| 7249 | if (f.inDeadCode()) { |
| 7250 | return true; |
| 7251 | } |
| 7252 | |
| 7253 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 7254 | |
| 7255 | MDefinition* memoryBase = f.memoryBase(memoryIndex); |
| 7256 | bool isMem32 = f.isMem32(memoryIndex); |
| 7257 | |
| 7258 | const SymbolicAddressSignature& callee = |
| 7259 | (f.codeMeta().usesSharedMemory(memoryIndex) |
| 7260 | ? (isMem32 ? SASigMemDiscardSharedM32 : SASigMemDiscardSharedM64) |
| 7261 | : (isMem32 ? SASigMemDiscardM32 : SASigMemDiscardM64)); |
| 7262 | return f.emitInstanceCall3(bytecodeOffset, callee, start, len, memoryBase); |
| 7263 | } |
| 7264 | #endif |
| 7265 | |
| 7266 | static bool EmitTableGet(FunctionCompiler& f) { |
| 7267 | uint32_t tableIndex; |
| 7268 | MDefinition* index; |
| 7269 | if (!f.iter().readTableGet(&tableIndex, &index)) { |
| 7270 | return false; |
| 7271 | } |
| 7272 | |
| 7273 | if (f.inDeadCode()) { |
| 7274 | return true; |
| 7275 | } |
| 7276 | |
| 7277 | const TableDesc& table = f.codeMeta().tables[tableIndex]; |
| 7278 | |
| 7279 | MDefinition* index32 = f.tableIndexToI32(table.indexType(), index); |
| 7280 | if (!index32) { |
| 7281 | return false; |
| 7282 | } |
| 7283 | |
| 7284 | if (table.elemType.tableRepr() == TableRepr::Ref) { |
| 7285 | MDefinition* ret = f.tableGetAnyRef(tableIndex, index32); |
| 7286 | if (!ret) { |
| 7287 | return false; |
| 7288 | } |
| 7289 | f.iter().setResult(ret); |
| 7290 | return true; |
| 7291 | } |
| 7292 | |
| 7293 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 7294 | |
| 7295 | MDefinition* tableIndexArg = f.constantI32(int32_t(tableIndex)); |
| 7296 | if (!tableIndexArg) { |
| 7297 | return false; |
| 7298 | } |
| 7299 | |
| 7300 | // The return value here is either null, denoting an error, or a short-lived |
| 7301 | // pointer to a location containing a possibly-null ref. |
| 7302 | MDefinition* ret; |
| 7303 | if (!f.emitInstanceCall2(bytecodeOffset, SASigTableGet, index32, |
| 7304 | tableIndexArg, &ret)) { |
| 7305 | return false; |
| 7306 | } |
| 7307 | |
| 7308 | f.iter().setResult(ret); |
| 7309 | return true; |
| 7310 | } |
| 7311 | |
| 7312 | static bool EmitTableGrow(FunctionCompiler& f) { |
| 7313 | uint32_t tableIndex; |
| 7314 | MDefinition* initValue; |
| 7315 | MDefinition* delta; |
| 7316 | if (!f.iter().readTableGrow(&tableIndex, &initValue, &delta)) { |
| 7317 | return false; |
| 7318 | } |
| 7319 | |
| 7320 | if (f.inDeadCode()) { |
| 7321 | return true; |
| 7322 | } |
| 7323 | |
| 7324 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 7325 | const TableDesc& table = f.codeMeta().tables[tableIndex]; |
| 7326 | |
| 7327 | MDefinition* delta32 = f.tableIndexToI32(table.indexType(), delta); |
| 7328 | if (!delta32) { |
| 7329 | return false; |
| 7330 | } |
| 7331 | |
| 7332 | MDefinition* tableIndexArg = f.constantI32(int32_t(tableIndex)); |
| 7333 | if (!tableIndexArg) { |
| 7334 | return false; |
| 7335 | } |
| 7336 | |
| 7337 | MDefinition* ret; |
| 7338 | if (!f.emitInstanceCall3(bytecodeOffset, SASigTableGrow, initValue, delta32, |
| 7339 | tableIndexArg, &ret)) { |
| 7340 | return false; |
| 7341 | } |
| 7342 | |
| 7343 | if (table.indexType() == IndexType::I64) { |
| 7344 | ret = f.extendI32(ret, false); |
| 7345 | if (!ret) { |
| 7346 | return false; |
| 7347 | } |
| 7348 | } |
| 7349 | |
| 7350 | f.iter().setResult(ret); |
| 7351 | return true; |
| 7352 | } |
| 7353 | |
| 7354 | static bool EmitTableSet(FunctionCompiler& f) { |
| 7355 | uint32_t tableIndex; |
| 7356 | MDefinition* index; |
| 7357 | MDefinition* value; |
| 7358 | if (!f.iter().readTableSet(&tableIndex, &index, &value)) { |
| 7359 | return false; |
| 7360 | } |
| 7361 | |
| 7362 | if (f.inDeadCode()) { |
| 7363 | return true; |
| 7364 | } |
| 7365 | |
| 7366 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 7367 | |
| 7368 | const TableDesc& table = f.codeMeta().tables[tableIndex]; |
| 7369 | |
| 7370 | MDefinition* index32 = f.tableIndexToI32(table.indexType(), index); |
| 7371 | if (!index32) { |
| 7372 | return false; |
| 7373 | } |
| 7374 | |
| 7375 | if (table.elemType.tableRepr() == TableRepr::Ref) { |
| 7376 | return f.tableSetAnyRef(tableIndex, index32, value, bytecodeOffset); |
| 7377 | } |
| 7378 | |
| 7379 | MDefinition* tableIndexArg = f.constantI32(int32_t(tableIndex)); |
| 7380 | if (!tableIndexArg) { |
| 7381 | return false; |
| 7382 | } |
| 7383 | |
| 7384 | return f.emitInstanceCall3(bytecodeOffset, SASigTableSet, index32, value, |
| 7385 | tableIndexArg); |
| 7386 | } |
| 7387 | |
| 7388 | static bool EmitTableSize(FunctionCompiler& f) { |
| 7389 | uint32_t tableIndex; |
| 7390 | if (!f.iter().readTableSize(&tableIndex)) { |
| 7391 | return false; |
| 7392 | } |
| 7393 | |
| 7394 | if (f.inDeadCode()) { |
| 7395 | return true; |
| 7396 | } |
| 7397 | |
| 7398 | MDefinition* length = f.loadTableLength(tableIndex); |
| 7399 | if (!length) { |
| 7400 | return false; |
| 7401 | } |
| 7402 | |
| 7403 | if (f.codeMeta().tables[tableIndex].indexType() == IndexType::I64) { |
| 7404 | length = f.extendI32(length, true); |
| 7405 | if (!length) { |
| 7406 | return false; |
| 7407 | } |
| 7408 | } |
| 7409 | |
| 7410 | f.iter().setResult(length); |
| 7411 | return true; |
| 7412 | } |
| 7413 | |
| 7414 | static bool EmitRefFunc(FunctionCompiler& f) { |
| 7415 | uint32_t funcIndex; |
| 7416 | if (!f.iter().readRefFunc(&funcIndex)) { |
| 7417 | return false; |
| 7418 | } |
| 7419 | |
| 7420 | if (f.inDeadCode()) { |
| 7421 | return true; |
| 7422 | } |
| 7423 | |
| 7424 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 7425 | |
| 7426 | MDefinition* funcIndexArg = f.constantI32(int32_t(funcIndex)); |
| 7427 | if (!funcIndexArg) { |
| 7428 | return false; |
| 7429 | } |
| 7430 | |
| 7431 | // The return value here is either null, denoting an error, or a short-lived |
| 7432 | // pointer to a location containing a possibly-null ref. |
| 7433 | MDefinition* ret; |
| 7434 | if (!f.emitInstanceCall1(bytecodeOffset, SASigRefFunc, funcIndexArg, &ret)) { |
| 7435 | return false; |
| 7436 | } |
| 7437 | |
| 7438 | f.iter().setResult(ret); |
| 7439 | return true; |
| 7440 | } |
| 7441 | |
| 7442 | static bool EmitRefNull(FunctionCompiler& f) { |
| 7443 | RefType type; |
| 7444 | if (!f.iter().readRefNull(&type)) { |
| 7445 | return false; |
| 7446 | } |
| 7447 | |
| 7448 | if (f.inDeadCode()) { |
| 7449 | return true; |
| 7450 | } |
| 7451 | |
| 7452 | MDefinition* nullVal = f.constantNullRef(); |
| 7453 | if (!nullVal) { |
| 7454 | return false; |
| 7455 | } |
| 7456 | f.iter().setResult(nullVal); |
| 7457 | return true; |
| 7458 | } |
| 7459 | |
| 7460 | static bool EmitRefIsNull(FunctionCompiler& f) { |
| 7461 | MDefinition* input; |
| 7462 | if (!f.iter().readRefIsNull(&input)) { |
| 7463 | return false; |
| 7464 | } |
| 7465 | |
| 7466 | if (f.inDeadCode()) { |
| 7467 | return true; |
| 7468 | } |
| 7469 | |
| 7470 | MDefinition* nullVal = f.constantNullRef(); |
| 7471 | if (!nullVal) { |
| 7472 | return false; |
| 7473 | } |
| 7474 | f.iter().setResult( |
| 7475 | f.compare(input, nullVal, JSOp::Eq, MCompare::Compare_WasmAnyRef)); |
| 7476 | return true; |
| 7477 | } |
| 7478 | |
| 7479 | #ifdef ENABLE_WASM_SIMD1 |
| 7480 | static bool EmitConstSimd128(FunctionCompiler& f) { |
| 7481 | V128 v128; |
| 7482 | if (!f.iter().readV128Const(&v128)) { |
| 7483 | return false; |
| 7484 | } |
| 7485 | |
| 7486 | f.iter().setResult(f.constantV128(v128)); |
| 7487 | return true; |
| 7488 | } |
| 7489 | |
| 7490 | static bool EmitBinarySimd128(FunctionCompiler& f, bool commutative, |
| 7491 | SimdOp op) { |
| 7492 | MDefinition* lhs; |
| 7493 | MDefinition* rhs; |
| 7494 | if (!f.iter().readBinary(ValType::V128, &lhs, &rhs)) { |
| 7495 | return false; |
| 7496 | } |
| 7497 | |
| 7498 | f.iter().setResult(f.binarySimd128(lhs, rhs, commutative, op)); |
| 7499 | return true; |
| 7500 | } |
| 7501 | |
| 7502 | static bool EmitTernarySimd128(FunctionCompiler& f, wasm::SimdOp op) { |
| 7503 | MDefinition* v0; |
| 7504 | MDefinition* v1; |
| 7505 | MDefinition* v2; |
| 7506 | if (!f.iter().readTernary(ValType::V128, &v0, &v1, &v2)) { |
| 7507 | return false; |
| 7508 | } |
| 7509 | |
| 7510 | f.iter().setResult(f.ternarySimd128(v0, v1, v2, op)); |
| 7511 | return true; |
| 7512 | } |
| 7513 | |
| 7514 | static bool EmitShiftSimd128(FunctionCompiler& f, SimdOp op) { |
| 7515 | MDefinition* lhs; |
| 7516 | MDefinition* rhs; |
| 7517 | if (!f.iter().readVectorShift(&lhs, &rhs)) { |
| 7518 | return false; |
| 7519 | } |
| 7520 | |
| 7521 | f.iter().setResult(f.shiftSimd128(lhs, rhs, op)); |
| 7522 | return true; |
| 7523 | } |
| 7524 | |
| 7525 | static bool EmitSplatSimd128(FunctionCompiler& f, ValType inType, SimdOp op) { |
| 7526 | MDefinition* src; |
| 7527 | if (!f.iter().readConversion(inType, ValType::V128, &src)) { |
| 7528 | return false; |
| 7529 | } |
| 7530 | |
| 7531 | f.iter().setResult(f.scalarToSimd128(src, op)); |
| 7532 | return true; |
| 7533 | } |
| 7534 | |
| 7535 | static bool EmitUnarySimd128(FunctionCompiler& f, SimdOp op) { |
| 7536 | MDefinition* src; |
| 7537 | if (!f.iter().readUnary(ValType::V128, &src)) { |
| 7538 | return false; |
| 7539 | } |
| 7540 | |
| 7541 | f.iter().setResult(f.unarySimd128(src, op)); |
| 7542 | return true; |
| 7543 | } |
| 7544 | |
| 7545 | static bool EmitReduceSimd128(FunctionCompiler& f, SimdOp op) { |
| 7546 | MDefinition* src; |
| 7547 | if (!f.iter().readConversion(ValType::V128, ValType::I32, &src)) { |
| 7548 | return false; |
| 7549 | } |
| 7550 | |
| 7551 | f.iter().setResult(f.reduceSimd128(src, op, ValType::I32)); |
| 7552 | return true; |
| 7553 | } |
| 7554 | |
| 7555 | static bool EmitExtractLaneSimd128(FunctionCompiler& f, ValType outType, |
| 7556 | uint32_t laneLimit, SimdOp op) { |
| 7557 | uint32_t laneIndex; |
| 7558 | MDefinition* src; |
| 7559 | if (!f.iter().readExtractLane(outType, laneLimit, &laneIndex, &src)) { |
| 7560 | return false; |
| 7561 | } |
| 7562 | |
| 7563 | f.iter().setResult(f.reduceSimd128(src, op, outType, laneIndex)); |
| 7564 | return true; |
| 7565 | } |
| 7566 | |
| 7567 | static bool EmitReplaceLaneSimd128(FunctionCompiler& f, ValType laneType, |
| 7568 | uint32_t laneLimit, SimdOp op) { |
| 7569 | uint32_t laneIndex; |
| 7570 | MDefinition* lhs; |
| 7571 | MDefinition* rhs; |
| 7572 | if (!f.iter().readReplaceLane(laneType, laneLimit, &laneIndex, &lhs, &rhs)) { |
| 7573 | return false; |
| 7574 | } |
| 7575 | |
| 7576 | f.iter().setResult(f.replaceLaneSimd128(lhs, rhs, laneIndex, op)); |
| 7577 | return true; |
| 7578 | } |
| 7579 | |
| 7580 | static bool EmitShuffleSimd128(FunctionCompiler& f) { |
| 7581 | MDefinition* v1; |
| 7582 | MDefinition* v2; |
| 7583 | V128 control; |
| 7584 | if (!f.iter().readVectorShuffle(&v1, &v2, &control)) { |
| 7585 | return false; |
| 7586 | } |
| 7587 | |
| 7588 | f.iter().setResult(f.shuffleSimd128(v1, v2, control)); |
| 7589 | return true; |
| 7590 | } |
| 7591 | |
| 7592 | static bool EmitLoadSplatSimd128(FunctionCompiler& f, Scalar::Type viewType, |
| 7593 | wasm::SimdOp splatOp) { |
| 7594 | LinearMemoryAddress<MDefinition*> addr; |
| 7595 | if (!f.iter().readLoadSplat(Scalar::byteSize(viewType), &addr)) { |
| 7596 | return false; |
| 7597 | } |
| 7598 | |
| 7599 | auto* ins = f.loadSplatSimd128(viewType, addr, splatOp); |
| 7600 | if (!f.inDeadCode() && !ins) { |
| 7601 | return false; |
| 7602 | } |
| 7603 | f.iter().setResult(ins); |
| 7604 | return true; |
| 7605 | } |
| 7606 | |
| 7607 | static bool EmitLoadExtendSimd128(FunctionCompiler& f, wasm::SimdOp op) { |
| 7608 | LinearMemoryAddress<MDefinition*> addr; |
| 7609 | if (!f.iter().readLoadExtend(&addr)) { |
| 7610 | return false; |
| 7611 | } |
| 7612 | |
| 7613 | auto* ins = f.loadExtendSimd128(addr, op); |
| 7614 | if (!f.inDeadCode() && !ins) { |
| 7615 | return false; |
| 7616 | } |
| 7617 | f.iter().setResult(ins); |
| 7618 | return true; |
| 7619 | } |
| 7620 | |
| 7621 | static bool EmitLoadZeroSimd128(FunctionCompiler& f, Scalar::Type viewType, |
| 7622 | size_t numBytes) { |
| 7623 | LinearMemoryAddress<MDefinition*> addr; |
| 7624 | if (!f.iter().readLoadSplat(numBytes, &addr)) { |
| 7625 | return false; |
| 7626 | } |
| 7627 | |
| 7628 | auto* ins = f.loadZeroSimd128(viewType, numBytes, addr); |
| 7629 | if (!f.inDeadCode() && !ins) { |
| 7630 | return false; |
| 7631 | } |
| 7632 | f.iter().setResult(ins); |
| 7633 | return true; |
| 7634 | } |
| 7635 | |
| 7636 | static bool EmitLoadLaneSimd128(FunctionCompiler& f, uint32_t laneSize) { |
| 7637 | uint32_t laneIndex; |
| 7638 | MDefinition* src; |
| 7639 | LinearMemoryAddress<MDefinition*> addr; |
| 7640 | if (!f.iter().readLoadLane(laneSize, &addr, &laneIndex, &src)) { |
| 7641 | return false; |
| 7642 | } |
| 7643 | |
| 7644 | auto* ins = f.loadLaneSimd128(laneSize, addr, laneIndex, src); |
| 7645 | if (!f.inDeadCode() && !ins) { |
| 7646 | return false; |
| 7647 | } |
| 7648 | f.iter().setResult(ins); |
| 7649 | return true; |
| 7650 | } |
| 7651 | |
| 7652 | static bool EmitStoreLaneSimd128(FunctionCompiler& f, uint32_t laneSize) { |
| 7653 | uint32_t laneIndex; |
| 7654 | MDefinition* src; |
| 7655 | LinearMemoryAddress<MDefinition*> addr; |
| 7656 | if (!f.iter().readStoreLane(laneSize, &addr, &laneIndex, &src)) { |
| 7657 | return false; |
| 7658 | } |
| 7659 | |
| 7660 | f.storeLaneSimd128(laneSize, addr, laneIndex, src); |
| 7661 | return true; |
| 7662 | } |
| 7663 | |
| 7664 | #endif // ENABLE_WASM_SIMD |
| 7665 | |
| 7666 | #ifdef ENABLE_WASM_GC1 |
| 7667 | static bool EmitRefAsNonNull(FunctionCompiler& f) { |
| 7668 | MDefinition* ref; |
| 7669 | if (!f.iter().readRefAsNonNull(&ref)) { |
| 7670 | return false; |
| 7671 | } |
| 7672 | |
| 7673 | return f.refAsNonNull(ref); |
| 7674 | } |
| 7675 | |
| 7676 | static bool EmitBrOnNull(FunctionCompiler& f) { |
| 7677 | uint32_t relativeDepth; |
| 7678 | ResultType type; |
| 7679 | DefVector values; |
| 7680 | MDefinition* condition; |
| 7681 | if (!f.iter().readBrOnNull(&relativeDepth, &type, &values, &condition)) { |
| 7682 | return false; |
| 7683 | } |
| 7684 | |
| 7685 | return f.brOnNull(relativeDepth, values, type, condition); |
| 7686 | } |
| 7687 | |
| 7688 | static bool EmitBrOnNonNull(FunctionCompiler& f) { |
| 7689 | uint32_t relativeDepth; |
| 7690 | ResultType type; |
| 7691 | DefVector values; |
| 7692 | MDefinition* condition; |
| 7693 | if (!f.iter().readBrOnNonNull(&relativeDepth, &type, &values, &condition)) { |
| 7694 | return false; |
| 7695 | } |
| 7696 | |
| 7697 | return f.brOnNonNull(relativeDepth, values, type, condition); |
| 7698 | } |
| 7699 | |
| 7700 | static bool EmitCallRef(FunctionCompiler& f) { |
| 7701 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 7702 | |
| 7703 | const FuncType* funcType; |
| 7704 | MDefinition* callee; |
| 7705 | DefVector args; |
| 7706 | |
| 7707 | if (!f.iter().readCallRef(&funcType, &callee, &args)) { |
| 7708 | return false; |
| 7709 | } |
| 7710 | |
| 7711 | if (f.inDeadCode()) { |
| 7712 | return true; |
| 7713 | } |
| 7714 | |
| 7715 | CallCompileState call; |
| 7716 | if (!EmitCallArgs(f, *funcType, args, &call)) { |
| 7717 | return false; |
| 7718 | } |
| 7719 | |
| 7720 | DefVector results; |
| 7721 | if (!f.callRef(*funcType, callee, lineOrBytecode, call, &results)) { |
| 7722 | return false; |
| 7723 | } |
| 7724 | |
| 7725 | f.iter().setResults(results.length(), results); |
| 7726 | return true; |
| 7727 | } |
| 7728 | |
| 7729 | #endif // ENABLE_WASM_GC |
| 7730 | |
| 7731 | #ifdef ENABLE_WASM_GC1 |
| 7732 | |
| 7733 | static bool EmitStructNew(FunctionCompiler& f) { |
| 7734 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 7735 | |
| 7736 | uint32_t typeIndex; |
| 7737 | DefVector args; |
| 7738 | if (!f.iter().readStructNew(&typeIndex, &args)) { |
| 7739 | return false; |
| 7740 | } |
| 7741 | |
| 7742 | if (f.inDeadCode()) { |
| 7743 | return true; |
| 7744 | } |
| 7745 | |
| 7746 | const TypeDef& typeDef = (*f.codeMeta().types)[typeIndex]; |
| 7747 | const StructType& structType = typeDef.structType(); |
| 7748 | MOZ_ASSERT(args.length() == structType.fields_.length())do { static_assert( mozilla::detail::AssertionConditionType< decltype(args.length() == structType.fields_.length())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(args.length() == structType.fields_.length()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("args.length() == structType.fields_.length()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 7748); AnnotateMozCrashReason("MOZ_ASSERT" "(" "args.length() == structType.fields_.length()" ")"); do { *((volatile int*)__null) = 7748; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7749 | |
| 7750 | MDefinition* structObject = f.createStructObject(typeIndex, false); |
| 7751 | if (!structObject) { |
| 7752 | return false; |
| 7753 | } |
| 7754 | |
| 7755 | // And fill in the fields. |
| 7756 | for (uint32_t fieldIndex = 0; fieldIndex < structType.fields_.length(); |
| 7757 | fieldIndex++) { |
| 7758 | if (!f.mirGen().ensureBallast()) { |
| 7759 | return false; |
| 7760 | } |
| 7761 | const StructField& field = structType.fields_[fieldIndex]; |
| 7762 | if (!f.writeValueToStructField(lineOrBytecode, field, structObject, |
| 7763 | args[fieldIndex], |
| 7764 | WasmPreBarrierKind::None)) { |
| 7765 | return false; |
| 7766 | } |
| 7767 | } |
| 7768 | |
| 7769 | f.iter().setResult(structObject); |
| 7770 | return true; |
| 7771 | } |
| 7772 | |
| 7773 | static bool EmitStructNewDefault(FunctionCompiler& f) { |
| 7774 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 7775 | |
| 7776 | uint32_t typeIndex; |
| 7777 | if (!f.iter().readStructNewDefault(&typeIndex)) { |
| 7778 | return false; |
| 7779 | } |
| 7780 | |
| 7781 | if (f.inDeadCode()) { |
| 7782 | return true; |
| 7783 | } |
| 7784 | |
| 7785 | const StructType& structType = (*f.codeMeta().types)[typeIndex].structType(); |
| 7786 | |
| 7787 | // Allocate a default initialized struct. This requires the type definition |
| 7788 | // for the struct. |
| 7789 | MDefinition* typeDefData = f.loadTypeDefInstanceData(typeIndex); |
| 7790 | if (!typeDefData) { |
| 7791 | return false; |
| 7792 | } |
| 7793 | |
| 7794 | // Figure out whether we need an OOL storage area, and hence which routine |
| 7795 | // to call. |
| 7796 | SymbolicAddressSignature calleeSASig = |
| 7797 | WasmStructObject::requiresOutlineBytes(structType.size_) |
| 7798 | ? SASigStructNewOOL_true |
| 7799 | : SASigStructNewIL_true; |
| 7800 | |
| 7801 | // Create call: structObject = Instance::structNew{IL,OOL}<true>(typeDefData) |
| 7802 | MDefinition* structObject; |
| 7803 | if (!f.emitInstanceCall1(lineOrBytecode, calleeSASig, typeDefData, |
| 7804 | &structObject)) { |
| 7805 | return false; |
| 7806 | } |
| 7807 | |
| 7808 | f.iter().setResult(structObject); |
| 7809 | return true; |
| 7810 | } |
| 7811 | |
| 7812 | static bool EmitStructSet(FunctionCompiler& f) { |
| 7813 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 7814 | |
| 7815 | uint32_t typeIndex; |
| 7816 | uint32_t fieldIndex; |
| 7817 | MDefinition* structObject; |
| 7818 | MDefinition* value; |
| 7819 | if (!f.iter().readStructSet(&typeIndex, &fieldIndex, &structObject, &value)) { |
| 7820 | return false; |
| 7821 | } |
| 7822 | |
| 7823 | if (f.inDeadCode()) { |
| 7824 | return true; |
| 7825 | } |
| 7826 | |
| 7827 | // Check for null is done at writeValueToStructField. |
| 7828 | |
| 7829 | // And fill in the field. |
| 7830 | const StructType& structType = (*f.codeMeta().types)[typeIndex].structType(); |
| 7831 | const StructField& field = structType.fields_[fieldIndex]; |
| 7832 | return f.writeValueToStructField(lineOrBytecode, field, structObject, value, |
| 7833 | WasmPreBarrierKind::Normal); |
| 7834 | } |
| 7835 | |
| 7836 | static bool EmitStructGet(FunctionCompiler& f, FieldWideningOp wideningOp) { |
| 7837 | uint32_t typeIndex; |
| 7838 | uint32_t fieldIndex; |
| 7839 | MDefinition* structObject; |
| 7840 | if (!f.iter().readStructGet(&typeIndex, &fieldIndex, wideningOp, |
| 7841 | &structObject)) { |
| 7842 | return false; |
| 7843 | } |
| 7844 | |
| 7845 | if (f.inDeadCode()) { |
| 7846 | return true; |
| 7847 | } |
| 7848 | |
| 7849 | // Check for null is done at readValueFromStructField. |
| 7850 | |
| 7851 | // And fetch the data. |
| 7852 | const StructType& structType = (*f.codeMeta().types)[typeIndex].structType(); |
| 7853 | const StructField& field = structType.fields_[fieldIndex]; |
| 7854 | MDefinition* load = |
| 7855 | f.readValueFromStructField(field, wideningOp, structObject); |
| 7856 | if (!load) { |
| 7857 | return false; |
| 7858 | } |
| 7859 | |
| 7860 | f.iter().setResult(load); |
| 7861 | return true; |
| 7862 | } |
| 7863 | |
| 7864 | static bool EmitArrayNew(FunctionCompiler& f) { |
| 7865 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 7866 | |
| 7867 | uint32_t typeIndex; |
| 7868 | MDefinition* numElements; |
| 7869 | MDefinition* fillValue; |
| 7870 | if (!f.iter().readArrayNew(&typeIndex, &numElements, &fillValue)) { |
| 7871 | return false; |
| 7872 | } |
| 7873 | |
| 7874 | if (f.inDeadCode()) { |
| 7875 | return true; |
| 7876 | } |
| 7877 | |
| 7878 | // If the requested size exceeds MaxArrayPayloadBytes, the MIR generated by |
| 7879 | // this helper will trap. |
| 7880 | MDefinition* arrayObject = f.createArrayNewCallAndLoop( |
| 7881 | lineOrBytecode, typeIndex, numElements, fillValue); |
| 7882 | if (!arrayObject) { |
| 7883 | return false; |
| 7884 | } |
| 7885 | |
| 7886 | f.iter().setResult(arrayObject); |
| 7887 | return true; |
| 7888 | } |
| 7889 | |
| 7890 | static bool EmitArrayNewDefault(FunctionCompiler& f) { |
| 7891 | // This is almost identical to EmitArrayNew, except we skip the |
| 7892 | // initialisation loop. |
| 7893 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 7894 | |
| 7895 | uint32_t typeIndex; |
| 7896 | MDefinition* numElements; |
| 7897 | if (!f.iter().readArrayNewDefault(&typeIndex, &numElements)) { |
| 7898 | return false; |
| 7899 | } |
| 7900 | |
| 7901 | if (f.inDeadCode()) { |
| 7902 | return true; |
| 7903 | } |
| 7904 | |
| 7905 | // Create the array object, default-initialized. |
| 7906 | const ArrayType& arrayType = (*f.codeMeta().types)[typeIndex].arrayType(); |
| 7907 | MDefinition* arrayObject = |
| 7908 | f.createArrayObject(lineOrBytecode, typeIndex, numElements, |
| 7909 | arrayType.elementType_.size(), /*zeroFields=*/true); |
| 7910 | if (!arrayObject) { |
| 7911 | return false; |
| 7912 | } |
| 7913 | |
| 7914 | f.iter().setResult(arrayObject); |
| 7915 | return true; |
| 7916 | } |
| 7917 | |
| 7918 | static bool EmitArrayNewFixed(FunctionCompiler& f) { |
| 7919 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 7920 | |
| 7921 | uint32_t typeIndex, numElements; |
| 7922 | DefVector values; |
| 7923 | |
| 7924 | if (!f.iter().readArrayNewFixed(&typeIndex, &numElements, &values)) { |
| 7925 | return false; |
| 7926 | } |
| 7927 | MOZ_ASSERT(values.length() == numElements)do { static_assert( mozilla::detail::AssertionConditionType< decltype(values.length() == numElements)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(values.length() == numElements ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "values.length() == numElements", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 7927); AnnotateMozCrashReason("MOZ_ASSERT" "(" "values.length() == numElements" ")"); do { *((volatile int*)__null) = 7927; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7928 | |
| 7929 | if (f.inDeadCode()) { |
| 7930 | return true; |
| 7931 | } |
| 7932 | |
| 7933 | MDefinition* numElementsDef = f.constantI32(int32_t(numElements)); |
| 7934 | if (!numElementsDef) { |
| 7935 | return false; |
| 7936 | } |
| 7937 | |
| 7938 | // Create the array object, uninitialized. |
| 7939 | const ArrayType& arrayType = (*f.codeMeta().types)[typeIndex].arrayType(); |
| 7940 | StorageType elemType = arrayType.elementType_; |
| 7941 | uint32_t elemSize = elemType.size(); |
| 7942 | MDefinition* arrayObject = |
| 7943 | f.createArrayObject(lineOrBytecode, typeIndex, numElementsDef, elemSize, |
| 7944 | /*zeroFields=*/false); |
| 7945 | if (!arrayObject) { |
| 7946 | return false; |
| 7947 | } |
| 7948 | |
| 7949 | // Make `base` point at the first byte of the (OOL) data area. |
| 7950 | MDefinition* base = f.getWasmArrayObjectData(arrayObject); |
| 7951 | if (!base) { |
| 7952 | return false; |
| 7953 | } |
| 7954 | |
| 7955 | // Write each element in turn. |
| 7956 | |
| 7957 | // How do we know that the offset expression `i * elemSize` below remains |
| 7958 | // within 2^31 (signed-i32) range? In the worst case we will have 16-byte |
| 7959 | // values, and there can be at most MaxFunctionBytes expressions, if it were |
| 7960 | // theoretically possible to generate one expression per instruction byte. |
| 7961 | // Hence the max offset we can be expected to generate is |
| 7962 | // `16 * MaxFunctionBytes`. |
| 7963 | static_assert(16 /* sizeof v128 */ * MaxFunctionBytes <= |
| 7964 | MaxArrayPayloadBytes); |
| 7965 | MOZ_RELEASE_ASSERT(numElements <= MaxFunctionBytes)do { static_assert( mozilla::detail::AssertionConditionType< decltype(numElements <= MaxFunctionBytes)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(numElements <= MaxFunctionBytes ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "numElements <= MaxFunctionBytes", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 7965); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "numElements <= MaxFunctionBytes" ")"); do { *((volatile int*)__null) = 7965; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7966 | |
| 7967 | for (uint32_t i = 0; i < numElements; i++) { |
| 7968 | if (!f.mirGen().ensureBallast()) { |
| 7969 | return false; |
| 7970 | } |
| 7971 | // `i * elemSize` is made safe by the assertions above. |
| 7972 | if (!f.writeGcValueAtBasePlusOffset( |
| 7973 | lineOrBytecode, elemType, arrayObject, AliasSet::WasmArrayDataArea, |
| 7974 | values[numElements - 1 - i], base, i * elemSize, false, |
| 7975 | WasmPreBarrierKind::None)) { |
| 7976 | return false; |
| 7977 | } |
| 7978 | } |
| 7979 | |
| 7980 | f.iter().setResult(arrayObject); |
| 7981 | return true; |
| 7982 | } |
| 7983 | |
| 7984 | static bool EmitArrayNewData(FunctionCompiler& f) { |
| 7985 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 7986 | |
| 7987 | uint32_t typeIndex, segIndex; |
| 7988 | MDefinition* segByteOffset; |
| 7989 | MDefinition* numElements; |
| 7990 | if (!f.iter().readArrayNewData(&typeIndex, &segIndex, &segByteOffset, |
| 7991 | &numElements)) { |
| 7992 | return false; |
| 7993 | } |
| 7994 | |
| 7995 | if (f.inDeadCode()) { |
| 7996 | return true; |
| 7997 | } |
| 7998 | |
| 7999 | // Get the type definition data for the array as a whole. |
| 8000 | MDefinition* typeDefData = f.loadTypeDefInstanceData(typeIndex); |
| 8001 | if (!typeDefData) { |
| 8002 | return false; |
| 8003 | } |
| 8004 | |
| 8005 | // Other values we need to pass to the instance call: |
| 8006 | MDefinition* segIndexM = f.constantI32(int32_t(segIndex)); |
| 8007 | if (!segIndexM) { |
| 8008 | return false; |
| 8009 | } |
| 8010 | |
| 8011 | // Create call: |
| 8012 | // arrayObject = Instance::arrayNewData(segByteOffset:u32, numElements:u32, |
| 8013 | // typeDefData:word, segIndex:u32) |
| 8014 | // If the requested size exceeds MaxArrayPayloadBytes, the MIR generated by |
| 8015 | // this call will trap. |
| 8016 | MDefinition* arrayObject; |
| 8017 | if (!f.emitInstanceCall4(lineOrBytecode, SASigArrayNewData, segByteOffset, |
| 8018 | numElements, typeDefData, segIndexM, &arrayObject)) { |
| 8019 | return false; |
| 8020 | } |
| 8021 | |
| 8022 | f.iter().setResult(arrayObject); |
| 8023 | return true; |
| 8024 | } |
| 8025 | |
| 8026 | static bool EmitArrayNewElem(FunctionCompiler& f) { |
| 8027 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 8028 | |
| 8029 | uint32_t typeIndex, segIndex; |
| 8030 | MDefinition* segElemIndex; |
| 8031 | MDefinition* numElements; |
| 8032 | if (!f.iter().readArrayNewElem(&typeIndex, &segIndex, &segElemIndex, |
| 8033 | &numElements)) { |
| 8034 | return false; |
| 8035 | } |
| 8036 | |
| 8037 | if (f.inDeadCode()) { |
| 8038 | return true; |
| 8039 | } |
| 8040 | |
| 8041 | // Get the type definition for the array as a whole. |
| 8042 | // Get the type definition data for the array as a whole. |
| 8043 | MDefinition* typeDefData = f.loadTypeDefInstanceData(typeIndex); |
| 8044 | if (!typeDefData) { |
| 8045 | return false; |
| 8046 | } |
| 8047 | |
| 8048 | // Other values we need to pass to the instance call: |
| 8049 | MDefinition* segIndexM = f.constantI32(int32_t(segIndex)); |
| 8050 | if (!segIndexM) { |
| 8051 | return false; |
| 8052 | } |
| 8053 | |
| 8054 | // Create call: |
| 8055 | // arrayObject = Instance::arrayNewElem(segElemIndex:u32, numElements:u32, |
| 8056 | // typeDefData:word, segIndex:u32) |
| 8057 | // If the requested size exceeds MaxArrayPayloadBytes, the MIR generated by |
| 8058 | // this call will trap. |
| 8059 | MDefinition* arrayObject; |
| 8060 | if (!f.emitInstanceCall4(lineOrBytecode, SASigArrayNewElem, segElemIndex, |
| 8061 | numElements, typeDefData, segIndexM, &arrayObject)) { |
| 8062 | return false; |
| 8063 | } |
| 8064 | |
| 8065 | f.iter().setResult(arrayObject); |
| 8066 | return true; |
| 8067 | } |
| 8068 | |
| 8069 | static bool EmitArrayInitData(FunctionCompiler& f) { |
| 8070 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 8071 | |
| 8072 | uint32_t typeIndex, segIndex; |
| 8073 | MDefinition* array; |
| 8074 | MDefinition* arrayIndex; |
| 8075 | MDefinition* segOffset; |
| 8076 | MDefinition* length; |
| 8077 | if (!f.iter().readArrayInitData(&typeIndex, &segIndex, &array, &arrayIndex, |
| 8078 | &segOffset, &length)) { |
| 8079 | return false; |
| 8080 | } |
| 8081 | |
| 8082 | if (f.inDeadCode()) { |
| 8083 | return true; |
| 8084 | } |
| 8085 | |
| 8086 | // Get the type definition data for the array as a whole. |
| 8087 | MDefinition* typeDefData = f.loadTypeDefInstanceData(typeIndex); |
| 8088 | if (!typeDefData) { |
| 8089 | return false; |
| 8090 | } |
| 8091 | |
| 8092 | // Other values we need to pass to the instance call: |
| 8093 | MDefinition* segIndexM = f.constantI32(int32_t(segIndex)); |
| 8094 | if (!segIndexM) { |
| 8095 | return false; |
| 8096 | } |
| 8097 | |
| 8098 | // Create call: |
| 8099 | // Instance::arrayInitData(array:word, index:u32, segByteOffset:u32, |
| 8100 | // numElements:u32, typeDefData:word, segIndex:u32) If the requested size |
| 8101 | // exceeds MaxArrayPayloadBytes, the MIR generated by this call will trap. |
| 8102 | return f.emitInstanceCall6(lineOrBytecode, SASigArrayInitData, array, |
| 8103 | arrayIndex, segOffset, length, typeDefData, |
| 8104 | segIndexM); |
| 8105 | } |
| 8106 | |
| 8107 | static bool EmitArrayInitElem(FunctionCompiler& f) { |
| 8108 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 8109 | |
| 8110 | uint32_t typeIndex, segIndex; |
| 8111 | MDefinition* array; |
| 8112 | MDefinition* arrayIndex; |
| 8113 | MDefinition* segOffset; |
| 8114 | MDefinition* length; |
| 8115 | if (!f.iter().readArrayInitElem(&typeIndex, &segIndex, &array, &arrayIndex, |
| 8116 | &segOffset, &length)) { |
| 8117 | return false; |
| 8118 | } |
| 8119 | |
| 8120 | if (f.inDeadCode()) { |
| 8121 | return true; |
| 8122 | } |
| 8123 | |
| 8124 | // Get the type definition data for the array as a whole. |
| 8125 | MDefinition* typeDefData = f.loadTypeDefInstanceData(typeIndex); |
| 8126 | if (!typeDefData) { |
| 8127 | return false; |
| 8128 | } |
| 8129 | |
| 8130 | // Other values we need to pass to the instance call: |
| 8131 | MDefinition* segIndexM = f.constantI32(int32_t(segIndex)); |
| 8132 | if (!segIndexM) { |
| 8133 | return false; |
| 8134 | } |
| 8135 | |
| 8136 | // Create call: |
| 8137 | // Instance::arrayInitElem(array:word, index:u32, segByteOffset:u32, |
| 8138 | // numElements:u32, typeDefData:word, segIndex:u32) If the requested size |
| 8139 | // exceeds MaxArrayPayloadBytes, the MIR generated by this call will trap. |
| 8140 | return f.emitInstanceCall6(lineOrBytecode, SASigArrayInitElem, array, |
| 8141 | arrayIndex, segOffset, length, typeDefData, |
| 8142 | segIndexM); |
| 8143 | } |
| 8144 | |
| 8145 | static bool EmitArraySet(FunctionCompiler& f) { |
| 8146 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 8147 | |
| 8148 | uint32_t typeIndex; |
| 8149 | MDefinition* value; |
| 8150 | MDefinition* index; |
| 8151 | MDefinition* arrayObject; |
| 8152 | if (!f.iter().readArraySet(&typeIndex, &value, &index, &arrayObject)) { |
| 8153 | return false; |
| 8154 | } |
| 8155 | |
| 8156 | if (f.inDeadCode()) { |
| 8157 | return true; |
| 8158 | } |
| 8159 | |
| 8160 | // Check for null is done at setupForArrayAccess. |
| 8161 | |
| 8162 | // Create the object null check and the array bounds check and get the OOL |
| 8163 | // data pointer. |
| 8164 | MDefinition* base = f.setupForArrayAccess(arrayObject, index); |
| 8165 | if (!base) { |
| 8166 | return false; |
| 8167 | } |
| 8168 | |
| 8169 | // And do the store. |
| 8170 | const ArrayType& arrayType = (*f.codeMeta().types)[typeIndex].arrayType(); |
| 8171 | StorageType elemType = arrayType.elementType_; |
| 8172 | uint32_t elemSize = elemType.size(); |
| 8173 | MOZ_ASSERT(elemSize >= 1 && elemSize <= 16)do { static_assert( mozilla::detail::AssertionConditionType< decltype(elemSize >= 1 && elemSize <= 16)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(elemSize >= 1 && elemSize <= 16))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("elemSize >= 1 && elemSize <= 16" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 8173); AnnotateMozCrashReason("MOZ_ASSERT" "(" "elemSize >= 1 && elemSize <= 16" ")"); do { *((volatile int*)__null) = 8173; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8174 | |
| 8175 | return f.writeGcValueAtBasePlusScaledIndex( |
| 8176 | lineOrBytecode, elemType, arrayObject, AliasSet::WasmArrayDataArea, value, |
| 8177 | base, elemSize, index, WasmPreBarrierKind::Normal); |
| 8178 | } |
| 8179 | |
| 8180 | static bool EmitArrayGet(FunctionCompiler& f, FieldWideningOp wideningOp) { |
| 8181 | uint32_t typeIndex; |
| 8182 | MDefinition* index; |
| 8183 | MDefinition* arrayObject; |
| 8184 | if (!f.iter().readArrayGet(&typeIndex, wideningOp, &index, &arrayObject)) { |
| 8185 | return false; |
| 8186 | } |
| 8187 | |
| 8188 | if (f.inDeadCode()) { |
| 8189 | return true; |
| 8190 | } |
| 8191 | |
| 8192 | // Check for null is done at setupForArrayAccess. |
| 8193 | |
| 8194 | // Create the object null check and the array bounds check and get the data |
| 8195 | // pointer. |
| 8196 | MDefinition* base = f.setupForArrayAccess(arrayObject, index); |
| 8197 | if (!base) { |
| 8198 | return false; |
| 8199 | } |
| 8200 | |
| 8201 | // And do the load. |
| 8202 | const ArrayType& arrayType = (*f.codeMeta().types)[typeIndex].arrayType(); |
| 8203 | StorageType elemType = arrayType.elementType_; |
| 8204 | |
| 8205 | MDefinition* load = |
| 8206 | f.readGcArrayValueAtIndex(elemType, wideningOp, arrayObject, |
| 8207 | AliasSet::WasmArrayDataArea, base, index); |
| 8208 | if (!load) { |
| 8209 | return false; |
| 8210 | } |
| 8211 | |
| 8212 | f.iter().setResult(load); |
| 8213 | return true; |
| 8214 | } |
| 8215 | |
| 8216 | static bool EmitArrayLen(FunctionCompiler& f) { |
| 8217 | MDefinition* arrayObject; |
| 8218 | if (!f.iter().readArrayLen(&arrayObject)) { |
| 8219 | return false; |
| 8220 | } |
| 8221 | |
| 8222 | if (f.inDeadCode()) { |
| 8223 | return true; |
| 8224 | } |
| 8225 | |
| 8226 | // Check for null is done at getWasmArrayObjectNumElements. |
| 8227 | |
| 8228 | // Get the size value for the array |
| 8229 | MDefinition* numElements = f.getWasmArrayObjectNumElements(arrayObject); |
| 8230 | if (!numElements) { |
| 8231 | return false; |
| 8232 | } |
| 8233 | |
| 8234 | f.iter().setResult(numElements); |
| 8235 | return true; |
| 8236 | } |
| 8237 | |
| 8238 | static bool EmitArrayCopy(FunctionCompiler& f) { |
| 8239 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 8240 | |
| 8241 | int32_t elemSize; |
| 8242 | bool elemsAreRefTyped; |
| 8243 | MDefinition* dstArrayObject; |
| 8244 | MDefinition* dstArrayIndex; |
| 8245 | MDefinition* srcArrayObject; |
| 8246 | MDefinition* srcArrayIndex; |
| 8247 | MDefinition* numElements; |
| 8248 | if (!f.iter().readArrayCopy(&elemSize, &elemsAreRefTyped, &dstArrayObject, |
| 8249 | &dstArrayIndex, &srcArrayObject, &srcArrayIndex, |
| 8250 | &numElements)) { |
| 8251 | return false; |
| 8252 | } |
| 8253 | |
| 8254 | if (f.inDeadCode()) { |
| 8255 | return true; |
| 8256 | } |
| 8257 | |
| 8258 | MOZ_ASSERT_IF(elemsAreRefTyped,do { if (elemsAreRefTyped) { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(size_t(elemSize) == MIRTypeToSize (TargetWordMIRType()))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(size_t(elemSize) == MIRTypeToSize (TargetWordMIRType())))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("size_t(elemSize) == MIRTypeToSize(TargetWordMIRType())", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 8259); AnnotateMozCrashReason("MOZ_ASSERT" "(" "size_t(elemSize) == MIRTypeToSize(TargetWordMIRType())" ")"); do { *((volatile int*)__null) = 8259; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 8259 | size_t(elemSize) == MIRTypeToSize(TargetWordMIRType()))do { if (elemsAreRefTyped) { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(size_t(elemSize) == MIRTypeToSize (TargetWordMIRType()))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(size_t(elemSize) == MIRTypeToSize (TargetWordMIRType())))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("size_t(elemSize) == MIRTypeToSize(TargetWordMIRType())", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 8259); AnnotateMozCrashReason("MOZ_ASSERT" "(" "size_t(elemSize) == MIRTypeToSize(TargetWordMIRType())" ")"); do { *((volatile int*)__null) = 8259; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 8260 | MOZ_ASSERT_IF(!elemsAreRefTyped, elemSize == 1 || elemSize == 2 ||do { if (!elemsAreRefTyped) { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(elemSize == 1 || elemSize == 2 || elemSize == 4 || elemSize == 8 || elemSize == 16)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(elemSize == 1 || elemSize == 2 || elemSize == 4 || elemSize == 8 || elemSize == 16))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("elemSize == 1 || elemSize == 2 || elemSize == 4 || elemSize == 8 || elemSize == 16" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 8262); AnnotateMozCrashReason("MOZ_ASSERT" "(" "elemSize == 1 || elemSize == 2 || elemSize == 4 || elemSize == 8 || elemSize == 16" ")"); do { *((volatile int*)__null) = 8262; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 8261 | elemSize == 4 || elemSize == 8 ||do { if (!elemsAreRefTyped) { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(elemSize == 1 || elemSize == 2 || elemSize == 4 || elemSize == 8 || elemSize == 16)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(elemSize == 1 || elemSize == 2 || elemSize == 4 || elemSize == 8 || elemSize == 16))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("elemSize == 1 || elemSize == 2 || elemSize == 4 || elemSize == 8 || elemSize == 16" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 8262); AnnotateMozCrashReason("MOZ_ASSERT" "(" "elemSize == 1 || elemSize == 2 || elemSize == 4 || elemSize == 8 || elemSize == 16" ")"); do { *((volatile int*)__null) = 8262; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 8262 | elemSize == 16)do { if (!elemsAreRefTyped) { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(elemSize == 1 || elemSize == 2 || elemSize == 4 || elemSize == 8 || elemSize == 16)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(elemSize == 1 || elemSize == 2 || elemSize == 4 || elemSize == 8 || elemSize == 16))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("elemSize == 1 || elemSize == 2 || elemSize == 4 || elemSize == 8 || elemSize == 16" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 8262); AnnotateMozCrashReason("MOZ_ASSERT" "(" "elemSize == 1 || elemSize == 2 || elemSize == 4 || elemSize == 8 || elemSize == 16" ")"); do { *((volatile int*)__null) = 8262; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 8263 | |
| 8264 | // A negative element size is used to inform Instance::arrayCopy that the |
| 8265 | // values are reftyped. This avoids having to pass it an extra boolean |
| 8266 | // argument. |
| 8267 | MDefinition* elemSizeDef = |
| 8268 | f.constantI32(elemsAreRefTyped ? -elemSize : elemSize); |
| 8269 | if (!elemSizeDef) { |
| 8270 | return false; |
| 8271 | } |
| 8272 | |
| 8273 | // Create call: |
| 8274 | // Instance::arrayCopy(dstArrayObject:word, dstArrayIndex:u32, |
| 8275 | // srcArrayObject:word, srcArrayIndex:u32, |
| 8276 | // numElements:u32, |
| 8277 | // (elemsAreRefTyped ? -elemSize : elemSize):u32)) |
| 8278 | return f.emitInstanceCall6(lineOrBytecode, SASigArrayCopy, dstArrayObject, |
| 8279 | dstArrayIndex, srcArrayObject, srcArrayIndex, |
| 8280 | numElements, elemSizeDef); |
| 8281 | } |
| 8282 | |
| 8283 | static bool EmitArrayFill(FunctionCompiler& f) { |
| 8284 | uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode(); |
| 8285 | |
| 8286 | uint32_t typeIndex; |
| 8287 | MDefinition* array; |
| 8288 | MDefinition* index; |
| 8289 | MDefinition* val; |
| 8290 | MDefinition* numElements; |
| 8291 | if (!f.iter().readArrayFill(&typeIndex, &array, &index, &val, &numElements)) { |
| 8292 | return false; |
| 8293 | } |
| 8294 | |
| 8295 | if (f.inDeadCode()) { |
| 8296 | return true; |
| 8297 | } |
| 8298 | |
| 8299 | return f.createArrayFill(lineOrBytecode, typeIndex, array, index, val, |
| 8300 | numElements); |
| 8301 | } |
| 8302 | |
| 8303 | static bool EmitRefI31(FunctionCompiler& f) { |
| 8304 | MDefinition* input; |
| 8305 | if (!f.iter().readConversion( |
| 8306 | ValType::I32, ValType(RefType::i31().asNonNullable()), &input)) { |
| 8307 | return false; |
| 8308 | } |
| 8309 | |
| 8310 | if (f.inDeadCode()) { |
| 8311 | return true; |
| 8312 | } |
| 8313 | |
| 8314 | MDefinition* output = f.refI31(input); |
| 8315 | if (!output) { |
| 8316 | return false; |
| 8317 | } |
| 8318 | f.iter().setResult(output); |
| 8319 | return true; |
| 8320 | } |
| 8321 | |
| 8322 | static bool EmitI31Get(FunctionCompiler& f, FieldWideningOp wideningOp) { |
| 8323 | MOZ_ASSERT(wideningOp != FieldWideningOp::None)do { static_assert( mozilla::detail::AssertionConditionType< decltype(wideningOp != FieldWideningOp::None)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(wideningOp != FieldWideningOp ::None))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("wideningOp != FieldWideningOp::None", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 8323); AnnotateMozCrashReason("MOZ_ASSERT" "(" "wideningOp != FieldWideningOp::None" ")"); do { *((volatile int*)__null) = 8323; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8324 | |
| 8325 | MDefinition* input; |
| 8326 | if (!f.iter().readConversion(ValType(RefType::i31()), ValType::I32, &input)) { |
| 8327 | return false; |
| 8328 | } |
| 8329 | |
| 8330 | if (f.inDeadCode()) { |
| 8331 | return true; |
| 8332 | } |
| 8333 | |
| 8334 | if (!f.refAsNonNull(input)) { |
| 8335 | return false; |
| 8336 | } |
| 8337 | MDefinition* output = f.i31Get(input, wideningOp); |
| 8338 | if (!output) { |
| 8339 | return false; |
| 8340 | } |
| 8341 | f.iter().setResult(output); |
| 8342 | return true; |
| 8343 | } |
| 8344 | |
| 8345 | static bool EmitRefTest(FunctionCompiler& f, bool nullable) { |
| 8346 | MDefinition* ref; |
| 8347 | RefType sourceType; |
| 8348 | RefType destType; |
| 8349 | if (!f.iter().readRefTest(nullable, &sourceType, &destType, &ref)) { |
| 8350 | return false; |
| 8351 | } |
| 8352 | |
| 8353 | if (f.inDeadCode()) { |
| 8354 | return true; |
| 8355 | } |
| 8356 | |
| 8357 | MDefinition* success = f.refTest(ref, sourceType, destType); |
| 8358 | if (!success) { |
| 8359 | return false; |
| 8360 | } |
| 8361 | |
| 8362 | f.iter().setResult(success); |
| 8363 | return true; |
| 8364 | } |
| 8365 | |
| 8366 | static bool EmitRefCast(FunctionCompiler& f, bool nullable) { |
| 8367 | MDefinition* ref; |
| 8368 | RefType sourceType; |
| 8369 | RefType destType; |
| 8370 | if (!f.iter().readRefCast(nullable, &sourceType, &destType, &ref)) { |
| 8371 | return false; |
| 8372 | } |
| 8373 | |
| 8374 | if (f.inDeadCode()) { |
| 8375 | return true; |
| 8376 | } |
| 8377 | |
| 8378 | if (!f.refCast(ref, sourceType, destType)) { |
| 8379 | return false; |
| 8380 | } |
| 8381 | |
| 8382 | f.iter().setResult(ref); |
| 8383 | return true; |
| 8384 | } |
| 8385 | |
| 8386 | static bool EmitBrOnCast(FunctionCompiler& f, bool onSuccess) { |
| 8387 | uint32_t labelRelativeDepth; |
| 8388 | RefType sourceType; |
| 8389 | RefType destType; |
| 8390 | ResultType labelType; |
| 8391 | DefVector values; |
| 8392 | if (!f.iter().readBrOnCast(onSuccess, &labelRelativeDepth, &sourceType, |
| 8393 | &destType, &labelType, &values)) { |
| 8394 | return false; |
| 8395 | } |
| 8396 | |
| 8397 | return f.brOnCastCommon(onSuccess, labelRelativeDepth, sourceType, destType, |
| 8398 | labelType, values); |
| 8399 | } |
| 8400 | |
| 8401 | static bool EmitAnyConvertExtern(FunctionCompiler& f) { |
| 8402 | // any.convert_extern is a no-op because anyref and extern share the same |
| 8403 | // representation |
| 8404 | MDefinition* ref; |
| 8405 | if (!f.iter().readRefConversion(RefType::extern_(), RefType::any(), &ref)) { |
| 8406 | return false; |
| 8407 | } |
| 8408 | |
| 8409 | f.iter().setResult(ref); |
| 8410 | return true; |
| 8411 | } |
| 8412 | |
| 8413 | static bool EmitExternConvertAny(FunctionCompiler& f) { |
| 8414 | // extern.convert_any is a no-op because anyref and extern share the same |
| 8415 | // representation |
| 8416 | MDefinition* ref; |
| 8417 | if (!f.iter().readRefConversion(RefType::any(), RefType::extern_(), &ref)) { |
| 8418 | return false; |
| 8419 | } |
| 8420 | |
| 8421 | f.iter().setResult(ref); |
| 8422 | return true; |
| 8423 | } |
| 8424 | |
| 8425 | #endif // ENABLE_WASM_GC |
| 8426 | |
| 8427 | static bool EmitCallBuiltinModuleFunc(FunctionCompiler& f) { |
| 8428 | // It's almost possible to use FunctionCompiler::emitInstanceCallN here. |
| 8429 | // Unfortunately not currently possible though, since ::emitInstanceCallN |
| 8430 | // expects an array of arguments along with a size, and that's not what is |
| 8431 | // available here. It would be possible if we were prepared to copy |
| 8432 | // `builtinModuleFunc->params` into a fixed-sized (16 element?) array, add |
| 8433 | // `memoryBase`, and make the call. |
| 8434 | const BuiltinModuleFunc* builtinModuleFunc; |
| 8435 | |
| 8436 | DefVector params; |
| 8437 | if (!f.iter().readCallBuiltinModuleFunc(&builtinModuleFunc, ¶ms)) { |
| 8438 | return false; |
| 8439 | } |
| 8440 | |
| 8441 | uint32_t bytecodeOffset = f.readBytecodeOffset(); |
| 8442 | const SymbolicAddressSignature& callee = *builtinModuleFunc->sig(); |
| 8443 | |
| 8444 | CallCompileState args; |
| 8445 | if (!f.passInstance(callee.argTypes[0], &args)) { |
| 8446 | return false; |
| 8447 | } |
| 8448 | |
| 8449 | if (!f.passArgs(params, builtinModuleFunc->funcType()->args(), &args)) { |
| 8450 | return false; |
| 8451 | } |
| 8452 | |
| 8453 | if (builtinModuleFunc->usesMemory()) { |
| 8454 | MDefinition* memoryBase = f.memoryBase(0); |
| 8455 | if (!f.passArg(memoryBase, MIRType::Pointer, &args)) { |
| 8456 | return false; |
| 8457 | } |
| 8458 | } |
| 8459 | |
| 8460 | if (!f.finishCall(&args)) { |
| 8461 | return false; |
| 8462 | } |
| 8463 | |
| 8464 | bool hasResult = !builtinModuleFunc->funcType()->results().empty(); |
| 8465 | MDefinition* result = nullptr; |
| 8466 | MDefinition** resultOutParam = hasResult ? &result : nullptr; |
| 8467 | if (!f.builtinInstanceMethodCall(callee, bytecodeOffset, args, |
| 8468 | resultOutParam)) { |
| 8469 | return false; |
| 8470 | } |
| 8471 | |
| 8472 | if (hasResult) { |
| 8473 | f.iter().setResult(result); |
| 8474 | } |
| 8475 | return true; |
| 8476 | } |
| 8477 | |
| 8478 | bool EmitBodyExprs(FunctionCompiler& f) { |
| 8479 | if (!f.iter().startFunction(f.funcIndex(), f.locals())) { |
| 8480 | return false; |
| 8481 | } |
| 8482 | |
| 8483 | #define CHECK(c) \ |
| 8484 | if (!(c)) return false; \ |
| 8485 | break |
| 8486 | |
| 8487 | while (true) { |
| 8488 | if (!f.mirGen().ensureBallast()) { |
| 8489 | return false; |
| 8490 | } |
| 8491 | |
| 8492 | OpBytes op; |
| 8493 | if (!f.iter().readOp(&op)) { |
| 8494 | return false; |
| 8495 | } |
| 8496 | |
| 8497 | switch (op.b0) { |
| 8498 | case uint16_t(Op::End): |
| 8499 | if (!EmitEnd(f)) { |
| 8500 | return false; |
| 8501 | } |
| 8502 | if (f.iter().controlStackEmpty()) { |
| 8503 | return true; |
| 8504 | } |
| 8505 | break; |
| 8506 | |
| 8507 | // Control opcodes |
| 8508 | case uint16_t(Op::Unreachable): |
| 8509 | CHECK(EmitUnreachable(f)); |
| 8510 | case uint16_t(Op::Nop): |
| 8511 | CHECK(f.iter().readNop()); |
| 8512 | case uint16_t(Op::Block): |
| 8513 | CHECK(EmitBlock(f)); |
| 8514 | case uint16_t(Op::Loop): |
| 8515 | CHECK(EmitLoop(f)); |
| 8516 | case uint16_t(Op::If): |
| 8517 | CHECK(EmitIf(f)); |
| 8518 | case uint16_t(Op::Else): |
| 8519 | CHECK(EmitElse(f)); |
| 8520 | case uint16_t(Op::Try): |
| 8521 | CHECK(EmitTry(f)); |
| 8522 | case uint16_t(Op::Catch): |
| 8523 | CHECK(EmitCatch(f)); |
| 8524 | case uint16_t(Op::CatchAll): |
| 8525 | CHECK(EmitCatchAll(f)); |
| 8526 | case uint16_t(Op::Delegate): |
| 8527 | if (!EmitDelegate(f)) { |
| 8528 | return false; |
| 8529 | } |
| 8530 | break; |
| 8531 | case uint16_t(Op::Throw): |
| 8532 | CHECK(EmitThrow(f)); |
| 8533 | case uint16_t(Op::Rethrow): |
| 8534 | CHECK(EmitRethrow(f)); |
| 8535 | case uint16_t(Op::ThrowRef): |
| 8536 | if (!f.codeMeta().exnrefEnabled()) { |
| 8537 | return f.iter().unrecognizedOpcode(&op); |
| 8538 | } |
| 8539 | CHECK(EmitThrowRef(f)); |
| 8540 | case uint16_t(Op::TryTable): |
| 8541 | if (!f.codeMeta().exnrefEnabled()) { |
| 8542 | return f.iter().unrecognizedOpcode(&op); |
| 8543 | } |
| 8544 | CHECK(EmitTryTable(f)); |
| 8545 | case uint16_t(Op::Br): |
| 8546 | CHECK(EmitBr(f)); |
| 8547 | case uint16_t(Op::BrIf): |
| 8548 | CHECK(EmitBrIf(f)); |
| 8549 | case uint16_t(Op::BrTable): |
| 8550 | CHECK(EmitBrTable(f)); |
| 8551 | case uint16_t(Op::Return): |
| 8552 | CHECK(EmitReturn(f)); |
| 8553 | |
| 8554 | // Calls |
| 8555 | case uint16_t(Op::Call): |
| 8556 | CHECK(EmitCall(f, /* asmJSFuncDef = */ false)); |
| 8557 | case uint16_t(Op::CallIndirect): |
| 8558 | CHECK(EmitCallIndirect(f, /* oldStyle = */ false)); |
| 8559 | |
| 8560 | // Parametric operators |
| 8561 | case uint16_t(Op::Drop): |
| 8562 | CHECK(f.iter().readDrop()); |
| 8563 | case uint16_t(Op::SelectNumeric): |
| 8564 | CHECK(EmitSelect(f, /*typed*/ false)); |
| 8565 | case uint16_t(Op::SelectTyped): |
| 8566 | CHECK(EmitSelect(f, /*typed*/ true)); |
| 8567 | |
| 8568 | // Locals and globals |
| 8569 | case uint16_t(Op::LocalGet): |
| 8570 | CHECK(EmitGetLocal(f)); |
| 8571 | case uint16_t(Op::LocalSet): |
| 8572 | CHECK(EmitSetLocal(f)); |
| 8573 | case uint16_t(Op::LocalTee): |
| 8574 | CHECK(EmitTeeLocal(f)); |
| 8575 | case uint16_t(Op::GlobalGet): |
| 8576 | CHECK(EmitGetGlobal(f)); |
| 8577 | case uint16_t(Op::GlobalSet): |
| 8578 | CHECK(EmitSetGlobal(f)); |
| 8579 | case uint16_t(Op::TableGet): |
| 8580 | CHECK(EmitTableGet(f)); |
| 8581 | case uint16_t(Op::TableSet): |
| 8582 | CHECK(EmitTableSet(f)); |
| 8583 | |
| 8584 | // Memory-related operators |
| 8585 | case uint16_t(Op::I32Load): |
| 8586 | CHECK(EmitLoad(f, ValType::I32, Scalar::Int32)); |
| 8587 | case uint16_t(Op::I64Load): |
| 8588 | CHECK(EmitLoad(f, ValType::I64, Scalar::Int64)); |
| 8589 | case uint16_t(Op::F32Load): |
| 8590 | CHECK(EmitLoad(f, ValType::F32, Scalar::Float32)); |
| 8591 | case uint16_t(Op::F64Load): |
| 8592 | CHECK(EmitLoad(f, ValType::F64, Scalar::Float64)); |
| 8593 | case uint16_t(Op::I32Load8S): |
| 8594 | CHECK(EmitLoad(f, ValType::I32, Scalar::Int8)); |
| 8595 | case uint16_t(Op::I32Load8U): |
| 8596 | CHECK(EmitLoad(f, ValType::I32, Scalar::Uint8)); |
| 8597 | case uint16_t(Op::I32Load16S): |
| 8598 | CHECK(EmitLoad(f, ValType::I32, Scalar::Int16)); |
| 8599 | case uint16_t(Op::I32Load16U): |
| 8600 | CHECK(EmitLoad(f, ValType::I32, Scalar::Uint16)); |
| 8601 | case uint16_t(Op::I64Load8S): |
| 8602 | CHECK(EmitLoad(f, ValType::I64, Scalar::Int8)); |
| 8603 | case uint16_t(Op::I64Load8U): |
| 8604 | CHECK(EmitLoad(f, ValType::I64, Scalar::Uint8)); |
| 8605 | case uint16_t(Op::I64Load16S): |
| 8606 | CHECK(EmitLoad(f, ValType::I64, Scalar::Int16)); |
| 8607 | case uint16_t(Op::I64Load16U): |
| 8608 | CHECK(EmitLoad(f, ValType::I64, Scalar::Uint16)); |
| 8609 | case uint16_t(Op::I64Load32S): |
| 8610 | CHECK(EmitLoad(f, ValType::I64, Scalar::Int32)); |
| 8611 | case uint16_t(Op::I64Load32U): |
| 8612 | CHECK(EmitLoad(f, ValType::I64, Scalar::Uint32)); |
| 8613 | case uint16_t(Op::I32Store): |
| 8614 | CHECK(EmitStore(f, ValType::I32, Scalar::Int32)); |
| 8615 | case uint16_t(Op::I64Store): |
| 8616 | CHECK(EmitStore(f, ValType::I64, Scalar::Int64)); |
| 8617 | case uint16_t(Op::F32Store): |
| 8618 | CHECK(EmitStore(f, ValType::F32, Scalar::Float32)); |
| 8619 | case uint16_t(Op::F64Store): |
| 8620 | CHECK(EmitStore(f, ValType::F64, Scalar::Float64)); |
| 8621 | case uint16_t(Op::I32Store8): |
| 8622 | CHECK(EmitStore(f, ValType::I32, Scalar::Int8)); |
| 8623 | case uint16_t(Op::I32Store16): |
| 8624 | CHECK(EmitStore(f, ValType::I32, Scalar::Int16)); |
| 8625 | case uint16_t(Op::I64Store8): |
| 8626 | CHECK(EmitStore(f, ValType::I64, Scalar::Int8)); |
| 8627 | case uint16_t(Op::I64Store16): |
| 8628 | CHECK(EmitStore(f, ValType::I64, Scalar::Int16)); |
| 8629 | case uint16_t(Op::I64Store32): |
| 8630 | CHECK(EmitStore(f, ValType::I64, Scalar::Int32)); |
| 8631 | case uint16_t(Op::MemorySize): |
| 8632 | CHECK(EmitMemorySize(f)); |
| 8633 | case uint16_t(Op::MemoryGrow): |
| 8634 | CHECK(EmitMemoryGrow(f)); |
| 8635 | |
| 8636 | // Constants |
| 8637 | case uint16_t(Op::I32Const): |
| 8638 | CHECK(EmitI32Const(f)); |
| 8639 | case uint16_t(Op::I64Const): |
| 8640 | CHECK(EmitI64Const(f)); |
| 8641 | case uint16_t(Op::F32Const): |
| 8642 | CHECK(EmitF32Const(f)); |
| 8643 | case uint16_t(Op::F64Const): |
| 8644 | CHECK(EmitF64Const(f)); |
| 8645 | |
| 8646 | // Comparison operators |
| 8647 | case uint16_t(Op::I32Eqz): |
| 8648 | CHECK(EmitConversion<MNot>(f, ValType::I32, ValType::I32)); |
| 8649 | case uint16_t(Op::I32Eq): |
| 8650 | CHECK( |
| 8651 | EmitComparison(f, ValType::I32, JSOp::Eq, MCompare::Compare_Int32)); |
| 8652 | case uint16_t(Op::I32Ne): |
| 8653 | CHECK( |
| 8654 | EmitComparison(f, ValType::I32, JSOp::Ne, MCompare::Compare_Int32)); |
| 8655 | case uint16_t(Op::I32LtS): |
| 8656 | CHECK( |
| 8657 | EmitComparison(f, ValType::I32, JSOp::Lt, MCompare::Compare_Int32)); |
| 8658 | case uint16_t(Op::I32LtU): |
| 8659 | CHECK(EmitComparison(f, ValType::I32, JSOp::Lt, |
| 8660 | MCompare::Compare_UInt32)); |
| 8661 | case uint16_t(Op::I32GtS): |
| 8662 | CHECK( |
| 8663 | EmitComparison(f, ValType::I32, JSOp::Gt, MCompare::Compare_Int32)); |
| 8664 | case uint16_t(Op::I32GtU): |
| 8665 | CHECK(EmitComparison(f, ValType::I32, JSOp::Gt, |
| 8666 | MCompare::Compare_UInt32)); |
| 8667 | case uint16_t(Op::I32LeS): |
| 8668 | CHECK( |
| 8669 | EmitComparison(f, ValType::I32, JSOp::Le, MCompare::Compare_Int32)); |
| 8670 | case uint16_t(Op::I32LeU): |
| 8671 | CHECK(EmitComparison(f, ValType::I32, JSOp::Le, |
| 8672 | MCompare::Compare_UInt32)); |
| 8673 | case uint16_t(Op::I32GeS): |
| 8674 | CHECK( |
| 8675 | EmitComparison(f, ValType::I32, JSOp::Ge, MCompare::Compare_Int32)); |
| 8676 | case uint16_t(Op::I32GeU): |
| 8677 | CHECK(EmitComparison(f, ValType::I32, JSOp::Ge, |
| 8678 | MCompare::Compare_UInt32)); |
| 8679 | case uint16_t(Op::I64Eqz): |
| 8680 | CHECK(EmitConversion<MNot>(f, ValType::I64, ValType::I32)); |
| 8681 | case uint16_t(Op::I64Eq): |
| 8682 | CHECK( |
| 8683 | EmitComparison(f, ValType::I64, JSOp::Eq, MCompare::Compare_Int64)); |
| 8684 | case uint16_t(Op::I64Ne): |
| 8685 | CHECK( |
| 8686 | EmitComparison(f, ValType::I64, JSOp::Ne, MCompare::Compare_Int64)); |
| 8687 | case uint16_t(Op::I64LtS): |
| 8688 | CHECK( |
| 8689 | EmitComparison(f, ValType::I64, JSOp::Lt, MCompare::Compare_Int64)); |
| 8690 | case uint16_t(Op::I64LtU): |
| 8691 | CHECK(EmitComparison(f, ValType::I64, JSOp::Lt, |
| 8692 | MCompare::Compare_UInt64)); |
| 8693 | case uint16_t(Op::I64GtS): |
| 8694 | CHECK( |
| 8695 | EmitComparison(f, ValType::I64, JSOp::Gt, MCompare::Compare_Int64)); |
| 8696 | case uint16_t(Op::I64GtU): |
| 8697 | CHECK(EmitComparison(f, ValType::I64, JSOp::Gt, |
| 8698 | MCompare::Compare_UInt64)); |
| 8699 | case uint16_t(Op::I64LeS): |
| 8700 | CHECK( |
| 8701 | EmitComparison(f, ValType::I64, JSOp::Le, MCompare::Compare_Int64)); |
| 8702 | case uint16_t(Op::I64LeU): |
| 8703 | CHECK(EmitComparison(f, ValType::I64, JSOp::Le, |
| 8704 | MCompare::Compare_UInt64)); |
| 8705 | case uint16_t(Op::I64GeS): |
| 8706 | CHECK( |
| 8707 | EmitComparison(f, ValType::I64, JSOp::Ge, MCompare::Compare_Int64)); |
| 8708 | case uint16_t(Op::I64GeU): |
| 8709 | CHECK(EmitComparison(f, ValType::I64, JSOp::Ge, |
| 8710 | MCompare::Compare_UInt64)); |
| 8711 | case uint16_t(Op::F32Eq): |
| 8712 | CHECK(EmitComparison(f, ValType::F32, JSOp::Eq, |
| 8713 | MCompare::Compare_Float32)); |
| 8714 | case uint16_t(Op::F32Ne): |
| 8715 | CHECK(EmitComparison(f, ValType::F32, JSOp::Ne, |
| 8716 | MCompare::Compare_Float32)); |
| 8717 | case uint16_t(Op::F32Lt): |
| 8718 | CHECK(EmitComparison(f, ValType::F32, JSOp::Lt, |
| 8719 | MCompare::Compare_Float32)); |
| 8720 | case uint16_t(Op::F32Gt): |
| 8721 | CHECK(EmitComparison(f, ValType::F32, JSOp::Gt, |
| 8722 | MCompare::Compare_Float32)); |
| 8723 | case uint16_t(Op::F32Le): |
| 8724 | CHECK(EmitComparison(f, ValType::F32, JSOp::Le, |
| 8725 | MCompare::Compare_Float32)); |
| 8726 | case uint16_t(Op::F32Ge): |
| 8727 | CHECK(EmitComparison(f, ValType::F32, JSOp::Ge, |
| 8728 | MCompare::Compare_Float32)); |
| 8729 | case uint16_t(Op::F64Eq): |
| 8730 | CHECK(EmitComparison(f, ValType::F64, JSOp::Eq, |
| 8731 | MCompare::Compare_Double)); |
| 8732 | case uint16_t(Op::F64Ne): |
| 8733 | CHECK(EmitComparison(f, ValType::F64, JSOp::Ne, |
| 8734 | MCompare::Compare_Double)); |
| 8735 | case uint16_t(Op::F64Lt): |
| 8736 | CHECK(EmitComparison(f, ValType::F64, JSOp::Lt, |
| 8737 | MCompare::Compare_Double)); |
| 8738 | case uint16_t(Op::F64Gt): |
| 8739 | CHECK(EmitComparison(f, ValType::F64, JSOp::Gt, |
| 8740 | MCompare::Compare_Double)); |
| 8741 | case uint16_t(Op::F64Le): |
| 8742 | CHECK(EmitComparison(f, ValType::F64, JSOp::Le, |
| 8743 | MCompare::Compare_Double)); |
| 8744 | case uint16_t(Op::F64Ge): |
| 8745 | CHECK(EmitComparison(f, ValType::F64, JSOp::Ge, |
| 8746 | MCompare::Compare_Double)); |
| 8747 | |
| 8748 | // Numeric operators |
| 8749 | case uint16_t(Op::I32Clz): |
| 8750 | CHECK(EmitUnaryWithType<MClz>(f, ValType::I32, MIRType::Int32)); |
| 8751 | case uint16_t(Op::I32Ctz): |
| 8752 | CHECK(EmitUnaryWithType<MCtz>(f, ValType::I32, MIRType::Int32)); |
| 8753 | case uint16_t(Op::I32Popcnt): |
| 8754 | CHECK(EmitUnaryWithType<MPopcnt>(f, ValType::I32, MIRType::Int32)); |
| 8755 | case uint16_t(Op::I32Add): |
| 8756 | CHECK(EmitAdd(f, ValType::I32, MIRType::Int32)); |
| 8757 | case uint16_t(Op::I32Sub): |
| 8758 | CHECK(EmitSub(f, ValType::I32, MIRType::Int32)); |
| 8759 | case uint16_t(Op::I32Mul): |
| 8760 | CHECK(EmitMul(f, ValType::I32, MIRType::Int32)); |
| 8761 | case uint16_t(Op::I32DivS): |
| 8762 | case uint16_t(Op::I32DivU): |
| 8763 | CHECK( |
| 8764 | EmitDiv(f, ValType::I32, MIRType::Int32, Op(op.b0) == Op::I32DivU)); |
| 8765 | case uint16_t(Op::I32RemS): |
| 8766 | case uint16_t(Op::I32RemU): |
| 8767 | CHECK( |
| 8768 | EmitRem(f, ValType::I32, MIRType::Int32, Op(op.b0) == Op::I32RemU)); |
| 8769 | case uint16_t(Op::I32And): |
| 8770 | CHECK(EmitBitwiseAndOrXor(f, ValType::I32, MIRType::Int32, |
| 8771 | MWasmBinaryBitwise::SubOpcode::And)); |
| 8772 | case uint16_t(Op::I32Or): |
| 8773 | CHECK(EmitBitwiseAndOrXor(f, ValType::I32, MIRType::Int32, |
| 8774 | MWasmBinaryBitwise::SubOpcode::Or)); |
| 8775 | case uint16_t(Op::I32Xor): |
| 8776 | CHECK(EmitBitwiseAndOrXor(f, ValType::I32, MIRType::Int32, |
| 8777 | MWasmBinaryBitwise::SubOpcode::Xor)); |
| 8778 | case uint16_t(Op::I32Shl): |
| 8779 | CHECK(EmitShift<MLsh>(f, ValType::I32, MIRType::Int32)); |
| 8780 | case uint16_t(Op::I32ShrS): |
| 8781 | CHECK(EmitShift<MRsh>(f, ValType::I32, MIRType::Int32)); |
| 8782 | case uint16_t(Op::I32ShrU): |
| 8783 | CHECK(EmitUrsh(f, ValType::I32, MIRType::Int32)); |
| 8784 | case uint16_t(Op::I32Rotl): |
| 8785 | case uint16_t(Op::I32Rotr): |
| 8786 | CHECK(EmitRotate(f, ValType::I32, Op(op.b0) == Op::I32Rotl)); |
| 8787 | case uint16_t(Op::I64Clz): |
| 8788 | CHECK(EmitUnaryWithType<MClz>(f, ValType::I64, MIRType::Int64)); |
| 8789 | case uint16_t(Op::I64Ctz): |
| 8790 | CHECK(EmitUnaryWithType<MCtz>(f, ValType::I64, MIRType::Int64)); |
| 8791 | case uint16_t(Op::I64Popcnt): |
| 8792 | CHECK(EmitUnaryWithType<MPopcnt>(f, ValType::I64, MIRType::Int64)); |
| 8793 | case uint16_t(Op::I64Add): |
| 8794 | CHECK(EmitAdd(f, ValType::I64, MIRType::Int64)); |
| 8795 | case uint16_t(Op::I64Sub): |
| 8796 | CHECK(EmitSub(f, ValType::I64, MIRType::Int64)); |
| 8797 | case uint16_t(Op::I64Mul): |
| 8798 | CHECK(EmitMul(f, ValType::I64, MIRType::Int64)); |
| 8799 | case uint16_t(Op::I64DivS): |
| 8800 | case uint16_t(Op::I64DivU): |
| 8801 | CHECK( |
| 8802 | EmitDiv(f, ValType::I64, MIRType::Int64, Op(op.b0) == Op::I64DivU)); |
| 8803 | case uint16_t(Op::I64RemS): |
| 8804 | case uint16_t(Op::I64RemU): |
| 8805 | CHECK( |
| 8806 | EmitRem(f, ValType::I64, MIRType::Int64, Op(op.b0) == Op::I64RemU)); |
| 8807 | case uint16_t(Op::I64And): |
| 8808 | CHECK(EmitBitwiseAndOrXor(f, ValType::I64, MIRType::Int64, |
| 8809 | MWasmBinaryBitwise::SubOpcode::And)); |
| 8810 | case uint16_t(Op::I64Or): |
| 8811 | CHECK(EmitBitwiseAndOrXor(f, ValType::I64, MIRType::Int64, |
| 8812 | MWasmBinaryBitwise::SubOpcode::Or)); |
| 8813 | case uint16_t(Op::I64Xor): |
| 8814 | CHECK(EmitBitwiseAndOrXor(f, ValType::I64, MIRType::Int64, |
| 8815 | MWasmBinaryBitwise::SubOpcode::Xor)); |
| 8816 | case uint16_t(Op::I64Shl): |
| 8817 | CHECK(EmitShift<MLsh>(f, ValType::I64, MIRType::Int64)); |
| 8818 | case uint16_t(Op::I64ShrS): |
| 8819 | CHECK(EmitShift<MRsh>(f, ValType::I64, MIRType::Int64)); |
| 8820 | case uint16_t(Op::I64ShrU): |
| 8821 | CHECK(EmitUrsh(f, ValType::I64, MIRType::Int64)); |
| 8822 | case uint16_t(Op::I64Rotl): |
| 8823 | case uint16_t(Op::I64Rotr): |
| 8824 | CHECK(EmitRotate(f, ValType::I64, Op(op.b0) == Op::I64Rotl)); |
| 8825 | case uint16_t(Op::F32Abs): |
| 8826 | CHECK(EmitUnaryWithType<MAbs>(f, ValType::F32, MIRType::Float32)); |
| 8827 | case uint16_t(Op::F32Neg): |
| 8828 | CHECK(EmitUnaryWithType<MWasmNeg>(f, ValType::F32, MIRType::Float32)); |
| 8829 | case uint16_t(Op::F32Ceil): |
| 8830 | CHECK(EmitUnaryMathBuiltinCall(f, SASigCeilF)); |
| 8831 | case uint16_t(Op::F32Floor): |
| 8832 | CHECK(EmitUnaryMathBuiltinCall(f, SASigFloorF)); |
| 8833 | case uint16_t(Op::F32Trunc): |
| 8834 | CHECK(EmitUnaryMathBuiltinCall(f, SASigTruncF)); |
| 8835 | case uint16_t(Op::F32Nearest): |
| 8836 | CHECK(EmitUnaryMathBuiltinCall(f, SASigNearbyIntF)); |
| 8837 | case uint16_t(Op::F32Sqrt): |
| 8838 | CHECK(EmitUnaryWithType<MSqrt>(f, ValType::F32, MIRType::Float32)); |
| 8839 | case uint16_t(Op::F32Add): |
| 8840 | CHECK(EmitAdd(f, ValType::F32, MIRType::Float32)); |
| 8841 | case uint16_t(Op::F32Sub): |
| 8842 | CHECK(EmitSub(f, ValType::F32, MIRType::Float32)); |
| 8843 | case uint16_t(Op::F32Mul): |
| 8844 | CHECK(EmitMul(f, ValType::F32, MIRType::Float32)); |
| 8845 | case uint16_t(Op::F32Div): |
| 8846 | CHECK(EmitDiv(f, ValType::F32, MIRType::Float32, |
| 8847 | /* isUnsigned = */ false)); |
| 8848 | case uint16_t(Op::F32Min): |
| 8849 | case uint16_t(Op::F32Max): |
| 8850 | CHECK(EmitMinMax(f, ValType::F32, MIRType::Float32, |
| 8851 | Op(op.b0) == Op::F32Max)); |
| 8852 | case uint16_t(Op::F32CopySign): |
| 8853 | CHECK(EmitCopySign(f, ValType::F32)); |
| 8854 | case uint16_t(Op::F64Abs): |
| 8855 | CHECK(EmitUnaryWithType<MAbs>(f, ValType::F64, MIRType::Double)); |
| 8856 | case uint16_t(Op::F64Neg): |
| 8857 | CHECK(EmitUnaryWithType<MWasmNeg>(f, ValType::F64, MIRType::Double)); |
| 8858 | case uint16_t(Op::F64Ceil): |
| 8859 | CHECK(EmitUnaryMathBuiltinCall(f, SASigCeilD)); |
| 8860 | case uint16_t(Op::F64Floor): |
| 8861 | CHECK(EmitUnaryMathBuiltinCall(f, SASigFloorD)); |
| 8862 | case uint16_t(Op::F64Trunc): |
| 8863 | CHECK(EmitUnaryMathBuiltinCall(f, SASigTruncD)); |
| 8864 | case uint16_t(Op::F64Nearest): |
| 8865 | CHECK(EmitUnaryMathBuiltinCall(f, SASigNearbyIntD)); |
| 8866 | case uint16_t(Op::F64Sqrt): |
| 8867 | CHECK(EmitUnaryWithType<MSqrt>(f, ValType::F64, MIRType::Double)); |
| 8868 | case uint16_t(Op::F64Add): |
| 8869 | CHECK(EmitAdd(f, ValType::F64, MIRType::Double)); |
| 8870 | case uint16_t(Op::F64Sub): |
| 8871 | CHECK(EmitSub(f, ValType::F64, MIRType::Double)); |
| 8872 | case uint16_t(Op::F64Mul): |
| 8873 | CHECK(EmitMul(f, ValType::F64, MIRType::Double)); |
| 8874 | case uint16_t(Op::F64Div): |
| 8875 | CHECK(EmitDiv(f, ValType::F64, MIRType::Double, |
| 8876 | /* isUnsigned = */ false)); |
| 8877 | case uint16_t(Op::F64Min): |
| 8878 | case uint16_t(Op::F64Max): |
| 8879 | CHECK(EmitMinMax(f, ValType::F64, MIRType::Double, |
| 8880 | Op(op.b0) == Op::F64Max)); |
| 8881 | case uint16_t(Op::F64CopySign): |
| 8882 | CHECK(EmitCopySign(f, ValType::F64)); |
| 8883 | |
| 8884 | // Conversions |
| 8885 | case uint16_t(Op::I32WrapI64): |
| 8886 | CHECK(EmitConversion<MWrapInt64ToInt32>(f, ValType::I64, ValType::I32)); |
| 8887 | case uint16_t(Op::I32TruncF32S): |
| 8888 | case uint16_t(Op::I32TruncF32U): |
| 8889 | CHECK(EmitTruncate(f, ValType::F32, ValType::I32, |
| 8890 | Op(op.b0) == Op::I32TruncF32U, false)); |
| 8891 | case uint16_t(Op::I32TruncF64S): |
| 8892 | case uint16_t(Op::I32TruncF64U): |
| 8893 | CHECK(EmitTruncate(f, ValType::F64, ValType::I32, |
| 8894 | Op(op.b0) == Op::I32TruncF64U, false)); |
| 8895 | case uint16_t(Op::I64ExtendI32S): |
| 8896 | case uint16_t(Op::I64ExtendI32U): |
| 8897 | CHECK(EmitExtendI32(f, Op(op.b0) == Op::I64ExtendI32U)); |
| 8898 | case uint16_t(Op::I64TruncF32S): |
| 8899 | case uint16_t(Op::I64TruncF32U): |
| 8900 | CHECK(EmitTruncate(f, ValType::F32, ValType::I64, |
| 8901 | Op(op.b0) == Op::I64TruncF32U, false)); |
| 8902 | case uint16_t(Op::I64TruncF64S): |
| 8903 | case uint16_t(Op::I64TruncF64U): |
| 8904 | CHECK(EmitTruncate(f, ValType::F64, ValType::I64, |
| 8905 | Op(op.b0) == Op::I64TruncF64U, false)); |
| 8906 | case uint16_t(Op::F32ConvertI32S): |
| 8907 | CHECK(EmitConversion<MToFloat32>(f, ValType::I32, ValType::F32)); |
| 8908 | case uint16_t(Op::F32ConvertI32U): |
| 8909 | CHECK(EmitConversion<MWasmUnsignedToFloat32>(f, ValType::I32, |
| 8910 | ValType::F32)); |
| 8911 | case uint16_t(Op::F32ConvertI64S): |
| 8912 | case uint16_t(Op::F32ConvertI64U): |
| 8913 | CHECK(EmitConvertI64ToFloatingPoint(f, ValType::F32, MIRType::Float32, |
| 8914 | Op(op.b0) == Op::F32ConvertI64U)); |
| 8915 | case uint16_t(Op::F32DemoteF64): |
| 8916 | CHECK(EmitConversion<MToFloat32>(f, ValType::F64, ValType::F32)); |
| 8917 | case uint16_t(Op::F64ConvertI32S): |
| 8918 | CHECK(EmitConversion<MToDouble>(f, ValType::I32, ValType::F64)); |
| 8919 | case uint16_t(Op::F64ConvertI32U): |
| 8920 | CHECK(EmitConversion<MWasmUnsignedToDouble>(f, ValType::I32, |
| 8921 | ValType::F64)); |
| 8922 | case uint16_t(Op::F64ConvertI64S): |
| 8923 | case uint16_t(Op::F64ConvertI64U): |
| 8924 | CHECK(EmitConvertI64ToFloatingPoint(f, ValType::F64, MIRType::Double, |
| 8925 | Op(op.b0) == Op::F64ConvertI64U)); |
| 8926 | case uint16_t(Op::F64PromoteF32): |
| 8927 | CHECK(EmitConversion<MToDouble>(f, ValType::F32, ValType::F64)); |
| 8928 | |
| 8929 | // Reinterpretations |
| 8930 | case uint16_t(Op::I32ReinterpretF32): |
| 8931 | CHECK(EmitReinterpret(f, ValType::I32, ValType::F32, MIRType::Int32)); |
| 8932 | case uint16_t(Op::I64ReinterpretF64): |
| 8933 | CHECK(EmitReinterpret(f, ValType::I64, ValType::F64, MIRType::Int64)); |
| 8934 | case uint16_t(Op::F32ReinterpretI32): |
| 8935 | CHECK(EmitReinterpret(f, ValType::F32, ValType::I32, MIRType::Float32)); |
| 8936 | case uint16_t(Op::F64ReinterpretI64): |
| 8937 | CHECK(EmitReinterpret(f, ValType::F64, ValType::I64, MIRType::Double)); |
| 8938 | |
| 8939 | #ifdef ENABLE_WASM_GC1 |
| 8940 | case uint16_t(Op::RefEq): |
| 8941 | if (!f.codeMeta().gcEnabled()) { |
| 8942 | return f.iter().unrecognizedOpcode(&op); |
| 8943 | } |
| 8944 | CHECK(EmitComparison(f, RefType::eq(), JSOp::Eq, |
| 8945 | MCompare::Compare_WasmAnyRef)); |
| 8946 | #endif |
| 8947 | case uint16_t(Op::RefFunc): |
| 8948 | CHECK(EmitRefFunc(f)); |
| 8949 | case uint16_t(Op::RefNull): |
| 8950 | CHECK(EmitRefNull(f)); |
| 8951 | case uint16_t(Op::RefIsNull): |
| 8952 | CHECK(EmitRefIsNull(f)); |
| 8953 | |
| 8954 | // Sign extensions |
| 8955 | case uint16_t(Op::I32Extend8S): |
| 8956 | CHECK(EmitSignExtend(f, 1, 4)); |
| 8957 | case uint16_t(Op::I32Extend16S): |
| 8958 | CHECK(EmitSignExtend(f, 2, 4)); |
| 8959 | case uint16_t(Op::I64Extend8S): |
| 8960 | CHECK(EmitSignExtend(f, 1, 8)); |
| 8961 | case uint16_t(Op::I64Extend16S): |
| 8962 | CHECK(EmitSignExtend(f, 2, 8)); |
| 8963 | case uint16_t(Op::I64Extend32S): |
| 8964 | CHECK(EmitSignExtend(f, 4, 8)); |
| 8965 | |
| 8966 | #ifdef ENABLE_WASM_TAIL_CALLS1 |
| 8967 | case uint16_t(Op::ReturnCall): { |
| 8968 | if (!f.codeMeta().tailCallsEnabled()) { |
| 8969 | return f.iter().unrecognizedOpcode(&op); |
| 8970 | } |
| 8971 | CHECK(EmitReturnCall(f)); |
| 8972 | } |
| 8973 | case uint16_t(Op::ReturnCallIndirect): { |
| 8974 | if (!f.codeMeta().tailCallsEnabled()) { |
| 8975 | return f.iter().unrecognizedOpcode(&op); |
| 8976 | } |
| 8977 | CHECK(EmitReturnCallIndirect(f)); |
| 8978 | } |
| 8979 | #endif |
| 8980 | |
| 8981 | #ifdef ENABLE_WASM_GC1 |
| 8982 | case uint16_t(Op::RefAsNonNull): |
| 8983 | if (!f.codeMeta().gcEnabled()) { |
| 8984 | return f.iter().unrecognizedOpcode(&op); |
| 8985 | } |
| 8986 | CHECK(EmitRefAsNonNull(f)); |
| 8987 | case uint16_t(Op::BrOnNull): { |
| 8988 | if (!f.codeMeta().gcEnabled()) { |
| 8989 | return f.iter().unrecognizedOpcode(&op); |
| 8990 | } |
| 8991 | CHECK(EmitBrOnNull(f)); |
| 8992 | } |
| 8993 | case uint16_t(Op::BrOnNonNull): { |
| 8994 | if (!f.codeMeta().gcEnabled()) { |
| 8995 | return f.iter().unrecognizedOpcode(&op); |
| 8996 | } |
| 8997 | CHECK(EmitBrOnNonNull(f)); |
| 8998 | } |
| 8999 | case uint16_t(Op::CallRef): { |
| 9000 | if (!f.codeMeta().gcEnabled()) { |
| 9001 | return f.iter().unrecognizedOpcode(&op); |
| 9002 | } |
| 9003 | CHECK(EmitCallRef(f)); |
| 9004 | } |
| 9005 | #endif |
| 9006 | |
| 9007 | #if defined(ENABLE_WASM_TAIL_CALLS1) && defined(ENABLE_WASM_GC1) |
| 9008 | case uint16_t(Op::ReturnCallRef): { |
| 9009 | if (!f.codeMeta().gcEnabled() || !f.codeMeta().tailCallsEnabled()) { |
| 9010 | return f.iter().unrecognizedOpcode(&op); |
| 9011 | } |
| 9012 | CHECK(EmitReturnCallRef(f)); |
| 9013 | } |
| 9014 | #endif |
| 9015 | |
| 9016 | // Gc operations |
| 9017 | #ifdef ENABLE_WASM_GC1 |
| 9018 | case uint16_t(Op::GcPrefix): { |
| 9019 | if (!f.codeMeta().gcEnabled()) { |
| 9020 | return f.iter().unrecognizedOpcode(&op); |
| 9021 | } |
| 9022 | switch (op.b1) { |
| 9023 | case uint32_t(GcOp::StructNew): |
| 9024 | CHECK(EmitStructNew(f)); |
| 9025 | case uint32_t(GcOp::StructNewDefault): |
| 9026 | CHECK(EmitStructNewDefault(f)); |
| 9027 | case uint32_t(GcOp::StructSet): |
| 9028 | CHECK(EmitStructSet(f)); |
| 9029 | case uint32_t(GcOp::StructGet): |
| 9030 | CHECK(EmitStructGet(f, FieldWideningOp::None)); |
| 9031 | case uint32_t(GcOp::StructGetS): |
| 9032 | CHECK(EmitStructGet(f, FieldWideningOp::Signed)); |
| 9033 | case uint32_t(GcOp::StructGetU): |
| 9034 | CHECK(EmitStructGet(f, FieldWideningOp::Unsigned)); |
| 9035 | case uint32_t(GcOp::ArrayNew): |
| 9036 | CHECK(EmitArrayNew(f)); |
| 9037 | case uint32_t(GcOp::ArrayNewDefault): |
| 9038 | CHECK(EmitArrayNewDefault(f)); |
| 9039 | case uint32_t(GcOp::ArrayNewFixed): |
| 9040 | CHECK(EmitArrayNewFixed(f)); |
| 9041 | case uint32_t(GcOp::ArrayNewData): |
| 9042 | CHECK(EmitArrayNewData(f)); |
| 9043 | case uint32_t(GcOp::ArrayNewElem): |
| 9044 | CHECK(EmitArrayNewElem(f)); |
| 9045 | case uint32_t(GcOp::ArrayInitData): |
| 9046 | CHECK(EmitArrayInitData(f)); |
| 9047 | case uint32_t(GcOp::ArrayInitElem): |
| 9048 | CHECK(EmitArrayInitElem(f)); |
| 9049 | case uint32_t(GcOp::ArraySet): |
| 9050 | CHECK(EmitArraySet(f)); |
| 9051 | case uint32_t(GcOp::ArrayGet): |
| 9052 | CHECK(EmitArrayGet(f, FieldWideningOp::None)); |
| 9053 | case uint32_t(GcOp::ArrayGetS): |
| 9054 | CHECK(EmitArrayGet(f, FieldWideningOp::Signed)); |
| 9055 | case uint32_t(GcOp::ArrayGetU): |
| 9056 | CHECK(EmitArrayGet(f, FieldWideningOp::Unsigned)); |
| 9057 | case uint32_t(GcOp::ArrayLen): |
| 9058 | CHECK(EmitArrayLen(f)); |
| 9059 | case uint32_t(GcOp::ArrayCopy): |
| 9060 | CHECK(EmitArrayCopy(f)); |
| 9061 | case uint32_t(GcOp::ArrayFill): |
| 9062 | CHECK(EmitArrayFill(f)); |
| 9063 | case uint32_t(GcOp::RefI31): |
| 9064 | CHECK(EmitRefI31(f)); |
| 9065 | case uint32_t(GcOp::I31GetS): |
| 9066 | CHECK(EmitI31Get(f, FieldWideningOp::Signed)); |
| 9067 | case uint32_t(GcOp::I31GetU): |
| 9068 | CHECK(EmitI31Get(f, FieldWideningOp::Unsigned)); |
| 9069 | case uint32_t(GcOp::BrOnCast): |
| 9070 | CHECK(EmitBrOnCast(f, /*onSuccess=*/true)); |
| 9071 | case uint32_t(GcOp::BrOnCastFail): |
| 9072 | CHECK(EmitBrOnCast(f, /*onSuccess=*/false)); |
| 9073 | case uint32_t(GcOp::RefTest): |
| 9074 | CHECK(EmitRefTest(f, /*nullable=*/false)); |
| 9075 | case uint32_t(GcOp::RefTestNull): |
| 9076 | CHECK(EmitRefTest(f, /*nullable=*/true)); |
| 9077 | case uint32_t(GcOp::RefCast): |
| 9078 | CHECK(EmitRefCast(f, /*nullable=*/false)); |
| 9079 | case uint32_t(GcOp::RefCastNull): |
| 9080 | CHECK(EmitRefCast(f, /*nullable=*/true)); |
| 9081 | case uint16_t(GcOp::AnyConvertExtern): |
| 9082 | CHECK(EmitAnyConvertExtern(f)); |
| 9083 | case uint16_t(GcOp::ExternConvertAny): |
| 9084 | CHECK(EmitExternConvertAny(f)); |
| 9085 | default: |
| 9086 | return f.iter().unrecognizedOpcode(&op); |
| 9087 | } // switch (op.b1) |
| 9088 | break; |
| 9089 | } |
| 9090 | #endif |
| 9091 | |
| 9092 | // SIMD operations |
| 9093 | #ifdef ENABLE_WASM_SIMD1 |
| 9094 | case uint16_t(Op::SimdPrefix): { |
| 9095 | if (!f.codeMeta().simdAvailable()) { |
| 9096 | return f.iter().unrecognizedOpcode(&op); |
| 9097 | } |
| 9098 | switch (op.b1) { |
| 9099 | case uint32_t(SimdOp::V128Const): |
| 9100 | CHECK(EmitConstSimd128(f)); |
| 9101 | case uint32_t(SimdOp::V128Load): |
| 9102 | CHECK(EmitLoad(f, ValType::V128, Scalar::Simd128)); |
| 9103 | case uint32_t(SimdOp::V128Store): |
| 9104 | CHECK(EmitStore(f, ValType::V128, Scalar::Simd128)); |
| 9105 | case uint32_t(SimdOp::V128And): |
| 9106 | case uint32_t(SimdOp::V128Or): |
| 9107 | case uint32_t(SimdOp::V128Xor): |
| 9108 | case uint32_t(SimdOp::I8x16AvgrU): |
| 9109 | case uint32_t(SimdOp::I16x8AvgrU): |
| 9110 | case uint32_t(SimdOp::I8x16Add): |
| 9111 | case uint32_t(SimdOp::I8x16AddSatS): |
| 9112 | case uint32_t(SimdOp::I8x16AddSatU): |
| 9113 | case uint32_t(SimdOp::I8x16MinS): |
| 9114 | case uint32_t(SimdOp::I8x16MinU): |
| 9115 | case uint32_t(SimdOp::I8x16MaxS): |
| 9116 | case uint32_t(SimdOp::I8x16MaxU): |
| 9117 | case uint32_t(SimdOp::I16x8Add): |
| 9118 | case uint32_t(SimdOp::I16x8AddSatS): |
| 9119 | case uint32_t(SimdOp::I16x8AddSatU): |
| 9120 | case uint32_t(SimdOp::I16x8Mul): |
| 9121 | case uint32_t(SimdOp::I16x8MinS): |
| 9122 | case uint32_t(SimdOp::I16x8MinU): |
| 9123 | case uint32_t(SimdOp::I16x8MaxS): |
| 9124 | case uint32_t(SimdOp::I16x8MaxU): |
| 9125 | case uint32_t(SimdOp::I32x4Add): |
| 9126 | case uint32_t(SimdOp::I32x4Mul): |
| 9127 | case uint32_t(SimdOp::I32x4MinS): |
| 9128 | case uint32_t(SimdOp::I32x4MinU): |
| 9129 | case uint32_t(SimdOp::I32x4MaxS): |
| 9130 | case uint32_t(SimdOp::I32x4MaxU): |
| 9131 | case uint32_t(SimdOp::I64x2Add): |
| 9132 | case uint32_t(SimdOp::I64x2Mul): |
| 9133 | case uint32_t(SimdOp::F32x4Add): |
| 9134 | case uint32_t(SimdOp::F32x4Mul): |
| 9135 | case uint32_t(SimdOp::F32x4Min): |
| 9136 | case uint32_t(SimdOp::F32x4Max): |
| 9137 | case uint32_t(SimdOp::F64x2Add): |
| 9138 | case uint32_t(SimdOp::F64x2Mul): |
| 9139 | case uint32_t(SimdOp::F64x2Min): |
| 9140 | case uint32_t(SimdOp::F64x2Max): |
| 9141 | case uint32_t(SimdOp::I8x16Eq): |
| 9142 | case uint32_t(SimdOp::I8x16Ne): |
| 9143 | case uint32_t(SimdOp::I16x8Eq): |
| 9144 | case uint32_t(SimdOp::I16x8Ne): |
| 9145 | case uint32_t(SimdOp::I32x4Eq): |
| 9146 | case uint32_t(SimdOp::I32x4Ne): |
| 9147 | case uint32_t(SimdOp::I64x2Eq): |
| 9148 | case uint32_t(SimdOp::I64x2Ne): |
| 9149 | case uint32_t(SimdOp::F32x4Eq): |
| 9150 | case uint32_t(SimdOp::F32x4Ne): |
| 9151 | case uint32_t(SimdOp::F64x2Eq): |
| 9152 | case uint32_t(SimdOp::F64x2Ne): |
| 9153 | case uint32_t(SimdOp::I32x4DotI16x8S): |
| 9154 | case uint32_t(SimdOp::I16x8ExtmulLowI8x16S): |
| 9155 | case uint32_t(SimdOp::I16x8ExtmulHighI8x16S): |
| 9156 | case uint32_t(SimdOp::I16x8ExtmulLowI8x16U): |
| 9157 | case uint32_t(SimdOp::I16x8ExtmulHighI8x16U): |
| 9158 | case uint32_t(SimdOp::I32x4ExtmulLowI16x8S): |
| 9159 | case uint32_t(SimdOp::I32x4ExtmulHighI16x8S): |
| 9160 | case uint32_t(SimdOp::I32x4ExtmulLowI16x8U): |
| 9161 | case uint32_t(SimdOp::I32x4ExtmulHighI16x8U): |
| 9162 | case uint32_t(SimdOp::I64x2ExtmulLowI32x4S): |
| 9163 | case uint32_t(SimdOp::I64x2ExtmulHighI32x4S): |
| 9164 | case uint32_t(SimdOp::I64x2ExtmulLowI32x4U): |
| 9165 | case uint32_t(SimdOp::I64x2ExtmulHighI32x4U): |
| 9166 | case uint32_t(SimdOp::I16x8Q15MulrSatS): |
| 9167 | CHECK(EmitBinarySimd128(f, /* commutative= */ true, SimdOp(op.b1))); |
| 9168 | case uint32_t(SimdOp::V128AndNot): |
| 9169 | case uint32_t(SimdOp::I8x16Sub): |
| 9170 | case uint32_t(SimdOp::I8x16SubSatS): |
| 9171 | case uint32_t(SimdOp::I8x16SubSatU): |
| 9172 | case uint32_t(SimdOp::I16x8Sub): |
| 9173 | case uint32_t(SimdOp::I16x8SubSatS): |
| 9174 | case uint32_t(SimdOp::I16x8SubSatU): |
| 9175 | case uint32_t(SimdOp::I32x4Sub): |
| 9176 | case uint32_t(SimdOp::I64x2Sub): |
| 9177 | case uint32_t(SimdOp::F32x4Sub): |
| 9178 | case uint32_t(SimdOp::F32x4Div): |
| 9179 | case uint32_t(SimdOp::F64x2Sub): |
| 9180 | case uint32_t(SimdOp::F64x2Div): |
| 9181 | case uint32_t(SimdOp::I8x16NarrowI16x8S): |
| 9182 | case uint32_t(SimdOp::I8x16NarrowI16x8U): |
| 9183 | case uint32_t(SimdOp::I16x8NarrowI32x4S): |
| 9184 | case uint32_t(SimdOp::I16x8NarrowI32x4U): |
| 9185 | case uint32_t(SimdOp::I8x16LtS): |
| 9186 | case uint32_t(SimdOp::I8x16LtU): |
| 9187 | case uint32_t(SimdOp::I8x16GtS): |
| 9188 | case uint32_t(SimdOp::I8x16GtU): |
| 9189 | case uint32_t(SimdOp::I8x16LeS): |
| 9190 | case uint32_t(SimdOp::I8x16LeU): |
| 9191 | case uint32_t(SimdOp::I8x16GeS): |
| 9192 | case uint32_t(SimdOp::I8x16GeU): |
| 9193 | case uint32_t(SimdOp::I16x8LtS): |
| 9194 | case uint32_t(SimdOp::I16x8LtU): |
| 9195 | case uint32_t(SimdOp::I16x8GtS): |
| 9196 | case uint32_t(SimdOp::I16x8GtU): |
| 9197 | case uint32_t(SimdOp::I16x8LeS): |
| 9198 | case uint32_t(SimdOp::I16x8LeU): |
| 9199 | case uint32_t(SimdOp::I16x8GeS): |
| 9200 | case uint32_t(SimdOp::I16x8GeU): |
| 9201 | case uint32_t(SimdOp::I32x4LtS): |
| 9202 | case uint32_t(SimdOp::I32x4LtU): |
| 9203 | case uint32_t(SimdOp::I32x4GtS): |
| 9204 | case uint32_t(SimdOp::I32x4GtU): |
| 9205 | case uint32_t(SimdOp::I32x4LeS): |
| 9206 | case uint32_t(SimdOp::I32x4LeU): |
| 9207 | case uint32_t(SimdOp::I32x4GeS): |
| 9208 | case uint32_t(SimdOp::I32x4GeU): |
| 9209 | case uint32_t(SimdOp::I64x2LtS): |
| 9210 | case uint32_t(SimdOp::I64x2GtS): |
| 9211 | case uint32_t(SimdOp::I64x2LeS): |
| 9212 | case uint32_t(SimdOp::I64x2GeS): |
| 9213 | case uint32_t(SimdOp::F32x4Lt): |
| 9214 | case uint32_t(SimdOp::F32x4Gt): |
| 9215 | case uint32_t(SimdOp::F32x4Le): |
| 9216 | case uint32_t(SimdOp::F32x4Ge): |
| 9217 | case uint32_t(SimdOp::F64x2Lt): |
| 9218 | case uint32_t(SimdOp::F64x2Gt): |
| 9219 | case uint32_t(SimdOp::F64x2Le): |
| 9220 | case uint32_t(SimdOp::F64x2Ge): |
| 9221 | case uint32_t(SimdOp::I8x16Swizzle): |
| 9222 | case uint32_t(SimdOp::F32x4PMax): |
| 9223 | case uint32_t(SimdOp::F32x4PMin): |
| 9224 | case uint32_t(SimdOp::F64x2PMax): |
| 9225 | case uint32_t(SimdOp::F64x2PMin): |
| 9226 | CHECK( |
| 9227 | EmitBinarySimd128(f, /* commutative= */ false, SimdOp(op.b1))); |
| 9228 | case uint32_t(SimdOp::I8x16Splat): |
| 9229 | case uint32_t(SimdOp::I16x8Splat): |
| 9230 | case uint32_t(SimdOp::I32x4Splat): |
| 9231 | CHECK(EmitSplatSimd128(f, ValType::I32, SimdOp(op.b1))); |
| 9232 | case uint32_t(SimdOp::I64x2Splat): |
| 9233 | CHECK(EmitSplatSimd128(f, ValType::I64, SimdOp(op.b1))); |
| 9234 | case uint32_t(SimdOp::F32x4Splat): |
| 9235 | CHECK(EmitSplatSimd128(f, ValType::F32, SimdOp(op.b1))); |
| 9236 | case uint32_t(SimdOp::F64x2Splat): |
| 9237 | CHECK(EmitSplatSimd128(f, ValType::F64, SimdOp(op.b1))); |
| 9238 | case uint32_t(SimdOp::I8x16Neg): |
| 9239 | case uint32_t(SimdOp::I16x8Neg): |
| 9240 | case uint32_t(SimdOp::I16x8ExtendLowI8x16S): |
| 9241 | case uint32_t(SimdOp::I16x8ExtendHighI8x16S): |
| 9242 | case uint32_t(SimdOp::I16x8ExtendLowI8x16U): |
| 9243 | case uint32_t(SimdOp::I16x8ExtendHighI8x16U): |
| 9244 | case uint32_t(SimdOp::I32x4Neg): |
| 9245 | case uint32_t(SimdOp::I32x4ExtendLowI16x8S): |
| 9246 | case uint32_t(SimdOp::I32x4ExtendHighI16x8S): |
| 9247 | case uint32_t(SimdOp::I32x4ExtendLowI16x8U): |
| 9248 | case uint32_t(SimdOp::I32x4ExtendHighI16x8U): |
| 9249 | case uint32_t(SimdOp::I32x4TruncSatF32x4S): |
| 9250 | case uint32_t(SimdOp::I32x4TruncSatF32x4U): |
| 9251 | case uint32_t(SimdOp::I64x2Neg): |
| 9252 | case uint32_t(SimdOp::I64x2ExtendLowI32x4S): |
| 9253 | case uint32_t(SimdOp::I64x2ExtendHighI32x4S): |
| 9254 | case uint32_t(SimdOp::I64x2ExtendLowI32x4U): |
| 9255 | case uint32_t(SimdOp::I64x2ExtendHighI32x4U): |
| 9256 | case uint32_t(SimdOp::F32x4Abs): |
| 9257 | case uint32_t(SimdOp::F32x4Neg): |
| 9258 | case uint32_t(SimdOp::F32x4Sqrt): |
| 9259 | case uint32_t(SimdOp::F32x4ConvertI32x4S): |
| 9260 | case uint32_t(SimdOp::F32x4ConvertI32x4U): |
| 9261 | case uint32_t(SimdOp::F64x2Abs): |
| 9262 | case uint32_t(SimdOp::F64x2Neg): |
| 9263 | case uint32_t(SimdOp::F64x2Sqrt): |
| 9264 | case uint32_t(SimdOp::V128Not): |
| 9265 | case uint32_t(SimdOp::I8x16Popcnt): |
| 9266 | case uint32_t(SimdOp::I8x16Abs): |
| 9267 | case uint32_t(SimdOp::I16x8Abs): |
| 9268 | case uint32_t(SimdOp::I32x4Abs): |
| 9269 | case uint32_t(SimdOp::I64x2Abs): |
| 9270 | case uint32_t(SimdOp::F32x4Ceil): |
| 9271 | case uint32_t(SimdOp::F32x4Floor): |
| 9272 | case uint32_t(SimdOp::F32x4Trunc): |
| 9273 | case uint32_t(SimdOp::F32x4Nearest): |
| 9274 | case uint32_t(SimdOp::F64x2Ceil): |
| 9275 | case uint32_t(SimdOp::F64x2Floor): |
| 9276 | case uint32_t(SimdOp::F64x2Trunc): |
| 9277 | case uint32_t(SimdOp::F64x2Nearest): |
| 9278 | case uint32_t(SimdOp::F32x4DemoteF64x2Zero): |
| 9279 | case uint32_t(SimdOp::F64x2PromoteLowF32x4): |
| 9280 | case uint32_t(SimdOp::F64x2ConvertLowI32x4S): |
| 9281 | case uint32_t(SimdOp::F64x2ConvertLowI32x4U): |
| 9282 | case uint32_t(SimdOp::I32x4TruncSatF64x2SZero): |
| 9283 | case uint32_t(SimdOp::I32x4TruncSatF64x2UZero): |
| 9284 | case uint32_t(SimdOp::I16x8ExtaddPairwiseI8x16S): |
| 9285 | case uint32_t(SimdOp::I16x8ExtaddPairwiseI8x16U): |
| 9286 | case uint32_t(SimdOp::I32x4ExtaddPairwiseI16x8S): |
| 9287 | case uint32_t(SimdOp::I32x4ExtaddPairwiseI16x8U): |
| 9288 | CHECK(EmitUnarySimd128(f, SimdOp(op.b1))); |
| 9289 | case uint32_t(SimdOp::V128AnyTrue): |
| 9290 | case uint32_t(SimdOp::I8x16AllTrue): |
| 9291 | case uint32_t(SimdOp::I16x8AllTrue): |
| 9292 | case uint32_t(SimdOp::I32x4AllTrue): |
| 9293 | case uint32_t(SimdOp::I64x2AllTrue): |
| 9294 | case uint32_t(SimdOp::I8x16Bitmask): |
| 9295 | case uint32_t(SimdOp::I16x8Bitmask): |
| 9296 | case uint32_t(SimdOp::I32x4Bitmask): |
| 9297 | case uint32_t(SimdOp::I64x2Bitmask): |
| 9298 | CHECK(EmitReduceSimd128(f, SimdOp(op.b1))); |
| 9299 | case uint32_t(SimdOp::I8x16Shl): |
| 9300 | case uint32_t(SimdOp::I8x16ShrS): |
| 9301 | case uint32_t(SimdOp::I8x16ShrU): |
| 9302 | case uint32_t(SimdOp::I16x8Shl): |
| 9303 | case uint32_t(SimdOp::I16x8ShrS): |
| 9304 | case uint32_t(SimdOp::I16x8ShrU): |
| 9305 | case uint32_t(SimdOp::I32x4Shl): |
| 9306 | case uint32_t(SimdOp::I32x4ShrS): |
| 9307 | case uint32_t(SimdOp::I32x4ShrU): |
| 9308 | case uint32_t(SimdOp::I64x2Shl): |
| 9309 | case uint32_t(SimdOp::I64x2ShrS): |
| 9310 | case uint32_t(SimdOp::I64x2ShrU): |
| 9311 | CHECK(EmitShiftSimd128(f, SimdOp(op.b1))); |
| 9312 | case uint32_t(SimdOp::I8x16ExtractLaneS): |
| 9313 | case uint32_t(SimdOp::I8x16ExtractLaneU): |
| 9314 | CHECK(EmitExtractLaneSimd128(f, ValType::I32, 16, SimdOp(op.b1))); |
| 9315 | case uint32_t(SimdOp::I16x8ExtractLaneS): |
| 9316 | case uint32_t(SimdOp::I16x8ExtractLaneU): |
| 9317 | CHECK(EmitExtractLaneSimd128(f, ValType::I32, 8, SimdOp(op.b1))); |
| 9318 | case uint32_t(SimdOp::I32x4ExtractLane): |
| 9319 | CHECK(EmitExtractLaneSimd128(f, ValType::I32, 4, SimdOp(op.b1))); |
| 9320 | case uint32_t(SimdOp::I64x2ExtractLane): |
| 9321 | CHECK(EmitExtractLaneSimd128(f, ValType::I64, 2, SimdOp(op.b1))); |
| 9322 | case uint32_t(SimdOp::F32x4ExtractLane): |
| 9323 | CHECK(EmitExtractLaneSimd128(f, ValType::F32, 4, SimdOp(op.b1))); |
| 9324 | case uint32_t(SimdOp::F64x2ExtractLane): |
| 9325 | CHECK(EmitExtractLaneSimd128(f, ValType::F64, 2, SimdOp(op.b1))); |
| 9326 | case uint32_t(SimdOp::I8x16ReplaceLane): |
| 9327 | CHECK(EmitReplaceLaneSimd128(f, ValType::I32, 16, SimdOp(op.b1))); |
| 9328 | case uint32_t(SimdOp::I16x8ReplaceLane): |
| 9329 | CHECK(EmitReplaceLaneSimd128(f, ValType::I32, 8, SimdOp(op.b1))); |
| 9330 | case uint32_t(SimdOp::I32x4ReplaceLane): |
| 9331 | CHECK(EmitReplaceLaneSimd128(f, ValType::I32, 4, SimdOp(op.b1))); |
| 9332 | case uint32_t(SimdOp::I64x2ReplaceLane): |
| 9333 | CHECK(EmitReplaceLaneSimd128(f, ValType::I64, 2, SimdOp(op.b1))); |
| 9334 | case uint32_t(SimdOp::F32x4ReplaceLane): |
| 9335 | CHECK(EmitReplaceLaneSimd128(f, ValType::F32, 4, SimdOp(op.b1))); |
| 9336 | case uint32_t(SimdOp::F64x2ReplaceLane): |
| 9337 | CHECK(EmitReplaceLaneSimd128(f, ValType::F64, 2, SimdOp(op.b1))); |
| 9338 | case uint32_t(SimdOp::V128Bitselect): |
| 9339 | CHECK(EmitTernarySimd128(f, SimdOp(op.b1))); |
| 9340 | case uint32_t(SimdOp::I8x16Shuffle): |
| 9341 | CHECK(EmitShuffleSimd128(f)); |
| 9342 | case uint32_t(SimdOp::V128Load8Splat): |
| 9343 | CHECK(EmitLoadSplatSimd128(f, Scalar::Uint8, SimdOp::I8x16Splat)); |
| 9344 | case uint32_t(SimdOp::V128Load16Splat): |
| 9345 | CHECK(EmitLoadSplatSimd128(f, Scalar::Uint16, SimdOp::I16x8Splat)); |
| 9346 | case uint32_t(SimdOp::V128Load32Splat): |
| 9347 | CHECK(EmitLoadSplatSimd128(f, Scalar::Float32, SimdOp::I32x4Splat)); |
| 9348 | case uint32_t(SimdOp::V128Load64Splat): |
| 9349 | CHECK(EmitLoadSplatSimd128(f, Scalar::Float64, SimdOp::I64x2Splat)); |
| 9350 | case uint32_t(SimdOp::V128Load8x8S): |
| 9351 | case uint32_t(SimdOp::V128Load8x8U): |
| 9352 | case uint32_t(SimdOp::V128Load16x4S): |
| 9353 | case uint32_t(SimdOp::V128Load16x4U): |
| 9354 | case uint32_t(SimdOp::V128Load32x2S): |
| 9355 | case uint32_t(SimdOp::V128Load32x2U): |
| 9356 | CHECK(EmitLoadExtendSimd128(f, SimdOp(op.b1))); |
| 9357 | case uint32_t(SimdOp::V128Load32Zero): |
| 9358 | CHECK(EmitLoadZeroSimd128(f, Scalar::Float32, 4)); |
| 9359 | case uint32_t(SimdOp::V128Load64Zero): |
| 9360 | CHECK(EmitLoadZeroSimd128(f, Scalar::Float64, 8)); |
| 9361 | case uint32_t(SimdOp::V128Load8Lane): |
| 9362 | CHECK(EmitLoadLaneSimd128(f, 1)); |
| 9363 | case uint32_t(SimdOp::V128Load16Lane): |
| 9364 | CHECK(EmitLoadLaneSimd128(f, 2)); |
| 9365 | case uint32_t(SimdOp::V128Load32Lane): |
| 9366 | CHECK(EmitLoadLaneSimd128(f, 4)); |
| 9367 | case uint32_t(SimdOp::V128Load64Lane): |
| 9368 | CHECK(EmitLoadLaneSimd128(f, 8)); |
| 9369 | case uint32_t(SimdOp::V128Store8Lane): |
| 9370 | CHECK(EmitStoreLaneSimd128(f, 1)); |
| 9371 | case uint32_t(SimdOp::V128Store16Lane): |
| 9372 | CHECK(EmitStoreLaneSimd128(f, 2)); |
| 9373 | case uint32_t(SimdOp::V128Store32Lane): |
| 9374 | CHECK(EmitStoreLaneSimd128(f, 4)); |
| 9375 | case uint32_t(SimdOp::V128Store64Lane): |
| 9376 | CHECK(EmitStoreLaneSimd128(f, 8)); |
| 9377 | # ifdef ENABLE_WASM_RELAXED_SIMD1 |
| 9378 | case uint32_t(SimdOp::F32x4RelaxedMadd): |
| 9379 | case uint32_t(SimdOp::F32x4RelaxedNmadd): |
| 9380 | case uint32_t(SimdOp::F64x2RelaxedMadd): |
| 9381 | case uint32_t(SimdOp::F64x2RelaxedNmadd): |
| 9382 | case uint32_t(SimdOp::I8x16RelaxedLaneSelect): |
| 9383 | case uint32_t(SimdOp::I16x8RelaxedLaneSelect): |
| 9384 | case uint32_t(SimdOp::I32x4RelaxedLaneSelect): |
| 9385 | case uint32_t(SimdOp::I64x2RelaxedLaneSelect): |
| 9386 | case uint32_t(SimdOp::I32x4DotI8x16I7x16AddS): { |
| 9387 | if (!f.codeMeta().v128RelaxedEnabled()) { |
| 9388 | return f.iter().unrecognizedOpcode(&op); |
| 9389 | } |
| 9390 | CHECK(EmitTernarySimd128(f, SimdOp(op.b1))); |
| 9391 | } |
| 9392 | case uint32_t(SimdOp::F32x4RelaxedMin): |
| 9393 | case uint32_t(SimdOp::F32x4RelaxedMax): |
| 9394 | case uint32_t(SimdOp::F64x2RelaxedMin): |
| 9395 | case uint32_t(SimdOp::F64x2RelaxedMax): |
| 9396 | case uint32_t(SimdOp::I16x8RelaxedQ15MulrS): { |
| 9397 | if (!f.codeMeta().v128RelaxedEnabled()) { |
| 9398 | return f.iter().unrecognizedOpcode(&op); |
| 9399 | } |
| 9400 | CHECK(EmitBinarySimd128(f, /* commutative= */ true, SimdOp(op.b1))); |
| 9401 | } |
| 9402 | case uint32_t(SimdOp::I32x4RelaxedTruncF32x4S): |
| 9403 | case uint32_t(SimdOp::I32x4RelaxedTruncF32x4U): |
| 9404 | case uint32_t(SimdOp::I32x4RelaxedTruncF64x2SZero): |
| 9405 | case uint32_t(SimdOp::I32x4RelaxedTruncF64x2UZero): { |
| 9406 | if (!f.codeMeta().v128RelaxedEnabled()) { |
| 9407 | return f.iter().unrecognizedOpcode(&op); |
| 9408 | } |
| 9409 | CHECK(EmitUnarySimd128(f, SimdOp(op.b1))); |
| 9410 | } |
| 9411 | case uint32_t(SimdOp::I8x16RelaxedSwizzle): |
| 9412 | case uint32_t(SimdOp::I16x8DotI8x16I7x16S): { |
| 9413 | if (!f.codeMeta().v128RelaxedEnabled()) { |
| 9414 | return f.iter().unrecognizedOpcode(&op); |
| 9415 | } |
| 9416 | CHECK( |
| 9417 | EmitBinarySimd128(f, /* commutative= */ false, SimdOp(op.b1))); |
| 9418 | } |
| 9419 | # endif |
| 9420 | |
| 9421 | default: |
| 9422 | return f.iter().unrecognizedOpcode(&op); |
| 9423 | } // switch (op.b1) |
| 9424 | break; |
| 9425 | } |
| 9426 | #endif |
| 9427 | |
| 9428 | // Miscellaneous operations |
| 9429 | case uint16_t(Op::MiscPrefix): { |
| 9430 | switch (op.b1) { |
| 9431 | case uint32_t(MiscOp::I32TruncSatF32S): |
| 9432 | case uint32_t(MiscOp::I32TruncSatF32U): |
| 9433 | CHECK(EmitTruncate(f, ValType::F32, ValType::I32, |
| 9434 | MiscOp(op.b1) == MiscOp::I32TruncSatF32U, true)); |
| 9435 | case uint32_t(MiscOp::I32TruncSatF64S): |
| 9436 | case uint32_t(MiscOp::I32TruncSatF64U): |
| 9437 | CHECK(EmitTruncate(f, ValType::F64, ValType::I32, |
| 9438 | MiscOp(op.b1) == MiscOp::I32TruncSatF64U, true)); |
| 9439 | case uint32_t(MiscOp::I64TruncSatF32S): |
| 9440 | case uint32_t(MiscOp::I64TruncSatF32U): |
| 9441 | CHECK(EmitTruncate(f, ValType::F32, ValType::I64, |
| 9442 | MiscOp(op.b1) == MiscOp::I64TruncSatF32U, true)); |
| 9443 | case uint32_t(MiscOp::I64TruncSatF64S): |
| 9444 | case uint32_t(MiscOp::I64TruncSatF64U): |
| 9445 | CHECK(EmitTruncate(f, ValType::F64, ValType::I64, |
| 9446 | MiscOp(op.b1) == MiscOp::I64TruncSatF64U, true)); |
| 9447 | case uint32_t(MiscOp::MemoryCopy): |
| 9448 | CHECK(EmitMemCopy(f)); |
| 9449 | case uint32_t(MiscOp::DataDrop): |
| 9450 | CHECK(EmitDataOrElemDrop(f, /*isData=*/true)); |
| 9451 | case uint32_t(MiscOp::MemoryFill): |
| 9452 | CHECK(EmitMemFill(f)); |
| 9453 | case uint32_t(MiscOp::MemoryInit): |
| 9454 | CHECK(EmitMemInit(f)); |
| 9455 | case uint32_t(MiscOp::TableCopy): |
| 9456 | CHECK(EmitTableCopy(f)); |
| 9457 | case uint32_t(MiscOp::ElemDrop): |
| 9458 | CHECK(EmitDataOrElemDrop(f, /*isData=*/false)); |
| 9459 | case uint32_t(MiscOp::TableInit): |
| 9460 | CHECK(EmitTableInit(f)); |
| 9461 | case uint32_t(MiscOp::TableFill): |
| 9462 | CHECK(EmitTableFill(f)); |
| 9463 | #if ENABLE_WASM_MEMORY_CONTROL1 |
| 9464 | case uint32_t(MiscOp::MemoryDiscard): { |
| 9465 | if (!f.codeMeta().memoryControlEnabled()) { |
| 9466 | return f.iter().unrecognizedOpcode(&op); |
| 9467 | } |
| 9468 | CHECK(EmitMemDiscard(f)); |
| 9469 | } |
| 9470 | #endif |
| 9471 | case uint32_t(MiscOp::TableGrow): |
| 9472 | CHECK(EmitTableGrow(f)); |
| 9473 | case uint32_t(MiscOp::TableSize): |
| 9474 | CHECK(EmitTableSize(f)); |
| 9475 | default: |
| 9476 | return f.iter().unrecognizedOpcode(&op); |
| 9477 | } |
| 9478 | break; |
| 9479 | } |
| 9480 | |
| 9481 | // Thread operations |
| 9482 | case uint16_t(Op::ThreadPrefix): { |
| 9483 | // Though thread ops can be used on nonshared memories, we make them |
| 9484 | // unavailable if shared memory has been disabled in the prefs, for |
| 9485 | // maximum predictability and safety and consistency with JS. |
| 9486 | if (f.codeMeta().sharedMemoryEnabled() == Shareable::False) { |
| 9487 | return f.iter().unrecognizedOpcode(&op); |
| 9488 | } |
| 9489 | switch (op.b1) { |
| 9490 | case uint32_t(ThreadOp::Wake): |
| 9491 | CHECK(EmitWake(f)); |
| 9492 | |
| 9493 | case uint32_t(ThreadOp::I32Wait): |
| 9494 | CHECK(EmitWait(f, ValType::I32, 4)); |
| 9495 | case uint32_t(ThreadOp::I64Wait): |
| 9496 | CHECK(EmitWait(f, ValType::I64, 8)); |
| 9497 | case uint32_t(ThreadOp::Fence): |
| 9498 | CHECK(EmitFence(f)); |
| 9499 | |
| 9500 | case uint32_t(ThreadOp::I32AtomicLoad): |
| 9501 | CHECK(EmitAtomicLoad(f, ValType::I32, Scalar::Int32)); |
| 9502 | case uint32_t(ThreadOp::I64AtomicLoad): |
| 9503 | CHECK(EmitAtomicLoad(f, ValType::I64, Scalar::Int64)); |
| 9504 | case uint32_t(ThreadOp::I32AtomicLoad8U): |
| 9505 | CHECK(EmitAtomicLoad(f, ValType::I32, Scalar::Uint8)); |
| 9506 | case uint32_t(ThreadOp::I32AtomicLoad16U): |
| 9507 | CHECK(EmitAtomicLoad(f, ValType::I32, Scalar::Uint16)); |
| 9508 | case uint32_t(ThreadOp::I64AtomicLoad8U): |
| 9509 | CHECK(EmitAtomicLoad(f, ValType::I64, Scalar::Uint8)); |
| 9510 | case uint32_t(ThreadOp::I64AtomicLoad16U): |
| 9511 | CHECK(EmitAtomicLoad(f, ValType::I64, Scalar::Uint16)); |
| 9512 | case uint32_t(ThreadOp::I64AtomicLoad32U): |
| 9513 | CHECK(EmitAtomicLoad(f, ValType::I64, Scalar::Uint32)); |
| 9514 | |
| 9515 | case uint32_t(ThreadOp::I32AtomicStore): |
| 9516 | CHECK(EmitAtomicStore(f, ValType::I32, Scalar::Int32)); |
| 9517 | case uint32_t(ThreadOp::I64AtomicStore): |
| 9518 | CHECK(EmitAtomicStore(f, ValType::I64, Scalar::Int64)); |
| 9519 | case uint32_t(ThreadOp::I32AtomicStore8U): |
| 9520 | CHECK(EmitAtomicStore(f, ValType::I32, Scalar::Uint8)); |
| 9521 | case uint32_t(ThreadOp::I32AtomicStore16U): |
| 9522 | CHECK(EmitAtomicStore(f, ValType::I32, Scalar::Uint16)); |
| 9523 | case uint32_t(ThreadOp::I64AtomicStore8U): |
| 9524 | CHECK(EmitAtomicStore(f, ValType::I64, Scalar::Uint8)); |
| 9525 | case uint32_t(ThreadOp::I64AtomicStore16U): |
| 9526 | CHECK(EmitAtomicStore(f, ValType::I64, Scalar::Uint16)); |
| 9527 | case uint32_t(ThreadOp::I64AtomicStore32U): |
| 9528 | CHECK(EmitAtomicStore(f, ValType::I64, Scalar::Uint32)); |
| 9529 | |
| 9530 | case uint32_t(ThreadOp::I32AtomicAdd): |
| 9531 | CHECK(EmitAtomicRMW(f, ValType::I32, Scalar::Int32, AtomicOp::Add)); |
| 9532 | case uint32_t(ThreadOp::I64AtomicAdd): |
| 9533 | CHECK(EmitAtomicRMW(f, ValType::I64, Scalar::Int64, AtomicOp::Add)); |
| 9534 | case uint32_t(ThreadOp::I32AtomicAdd8U): |
| 9535 | CHECK(EmitAtomicRMW(f, ValType::I32, Scalar::Uint8, AtomicOp::Add)); |
| 9536 | case uint32_t(ThreadOp::I32AtomicAdd16U): |
| 9537 | CHECK( |
| 9538 | EmitAtomicRMW(f, ValType::I32, Scalar::Uint16, AtomicOp::Add)); |
| 9539 | case uint32_t(ThreadOp::I64AtomicAdd8U): |
| 9540 | CHECK(EmitAtomicRMW(f, ValType::I64, Scalar::Uint8, AtomicOp::Add)); |
| 9541 | case uint32_t(ThreadOp::I64AtomicAdd16U): |
| 9542 | CHECK( |
| 9543 | EmitAtomicRMW(f, ValType::I64, Scalar::Uint16, AtomicOp::Add)); |
| 9544 | case uint32_t(ThreadOp::I64AtomicAdd32U): |
| 9545 | CHECK( |
| 9546 | EmitAtomicRMW(f, ValType::I64, Scalar::Uint32, AtomicOp::Add)); |
| 9547 | |
| 9548 | case uint32_t(ThreadOp::I32AtomicSub): |
| 9549 | CHECK(EmitAtomicRMW(f, ValType::I32, Scalar::Int32, AtomicOp::Sub)); |
| 9550 | case uint32_t(ThreadOp::I64AtomicSub): |
| 9551 | CHECK(EmitAtomicRMW(f, ValType::I64, Scalar::Int64, AtomicOp::Sub)); |
| 9552 | case uint32_t(ThreadOp::I32AtomicSub8U): |
| 9553 | CHECK(EmitAtomicRMW(f, ValType::I32, Scalar::Uint8, AtomicOp::Sub)); |
| 9554 | case uint32_t(ThreadOp::I32AtomicSub16U): |
| 9555 | CHECK( |
| 9556 | EmitAtomicRMW(f, ValType::I32, Scalar::Uint16, AtomicOp::Sub)); |
| 9557 | case uint32_t(ThreadOp::I64AtomicSub8U): |
| 9558 | CHECK(EmitAtomicRMW(f, ValType::I64, Scalar::Uint8, AtomicOp::Sub)); |
| 9559 | case uint32_t(ThreadOp::I64AtomicSub16U): |
| 9560 | CHECK( |
| 9561 | EmitAtomicRMW(f, ValType::I64, Scalar::Uint16, AtomicOp::Sub)); |
| 9562 | case uint32_t(ThreadOp::I64AtomicSub32U): |
| 9563 | CHECK( |
| 9564 | EmitAtomicRMW(f, ValType::I64, Scalar::Uint32, AtomicOp::Sub)); |
| 9565 | |
| 9566 | case uint32_t(ThreadOp::I32AtomicAnd): |
| 9567 | CHECK(EmitAtomicRMW(f, ValType::I32, Scalar::Int32, AtomicOp::And)); |
| 9568 | case uint32_t(ThreadOp::I64AtomicAnd): |
| 9569 | CHECK(EmitAtomicRMW(f, ValType::I64, Scalar::Int64, AtomicOp::And)); |
| 9570 | case uint32_t(ThreadOp::I32AtomicAnd8U): |
| 9571 | CHECK(EmitAtomicRMW(f, ValType::I32, Scalar::Uint8, AtomicOp::And)); |
| 9572 | case uint32_t(ThreadOp::I32AtomicAnd16U): |
| 9573 | CHECK( |
| 9574 | EmitAtomicRMW(f, ValType::I32, Scalar::Uint16, AtomicOp::And)); |
| 9575 | case uint32_t(ThreadOp::I64AtomicAnd8U): |
| 9576 | CHECK(EmitAtomicRMW(f, ValType::I64, Scalar::Uint8, AtomicOp::And)); |
| 9577 | case uint32_t(ThreadOp::I64AtomicAnd16U): |
| 9578 | CHECK( |
| 9579 | EmitAtomicRMW(f, ValType::I64, Scalar::Uint16, AtomicOp::And)); |
| 9580 | case uint32_t(ThreadOp::I64AtomicAnd32U): |
| 9581 | CHECK( |
| 9582 | EmitAtomicRMW(f, ValType::I64, Scalar::Uint32, AtomicOp::And)); |
| 9583 | |
| 9584 | case uint32_t(ThreadOp::I32AtomicOr): |
| 9585 | CHECK(EmitAtomicRMW(f, ValType::I32, Scalar::Int32, AtomicOp::Or)); |
| 9586 | case uint32_t(ThreadOp::I64AtomicOr): |
| 9587 | CHECK(EmitAtomicRMW(f, ValType::I64, Scalar::Int64, AtomicOp::Or)); |
| 9588 | case uint32_t(ThreadOp::I32AtomicOr8U): |
| 9589 | CHECK(EmitAtomicRMW(f, ValType::I32, Scalar::Uint8, AtomicOp::Or)); |
| 9590 | case uint32_t(ThreadOp::I32AtomicOr16U): |
| 9591 | CHECK(EmitAtomicRMW(f, ValType::I32, Scalar::Uint16, AtomicOp::Or)); |
| 9592 | case uint32_t(ThreadOp::I64AtomicOr8U): |
| 9593 | CHECK(EmitAtomicRMW(f, ValType::I64, Scalar::Uint8, AtomicOp::Or)); |
| 9594 | case uint32_t(ThreadOp::I64AtomicOr16U): |
| 9595 | CHECK(EmitAtomicRMW(f, ValType::I64, Scalar::Uint16, AtomicOp::Or)); |
| 9596 | case uint32_t(ThreadOp::I64AtomicOr32U): |
| 9597 | CHECK(EmitAtomicRMW(f, ValType::I64, Scalar::Uint32, AtomicOp::Or)); |
| 9598 | |
| 9599 | case uint32_t(ThreadOp::I32AtomicXor): |
| 9600 | CHECK(EmitAtomicRMW(f, ValType::I32, Scalar::Int32, AtomicOp::Xor)); |
| 9601 | case uint32_t(ThreadOp::I64AtomicXor): |
| 9602 | CHECK(EmitAtomicRMW(f, ValType::I64, Scalar::Int64, AtomicOp::Xor)); |
| 9603 | case uint32_t(ThreadOp::I32AtomicXor8U): |
| 9604 | CHECK(EmitAtomicRMW(f, ValType::I32, Scalar::Uint8, AtomicOp::Xor)); |
| 9605 | case uint32_t(ThreadOp::I32AtomicXor16U): |
| 9606 | CHECK( |
| 9607 | EmitAtomicRMW(f, ValType::I32, Scalar::Uint16, AtomicOp::Xor)); |
| 9608 | case uint32_t(ThreadOp::I64AtomicXor8U): |
| 9609 | CHECK(EmitAtomicRMW(f, ValType::I64, Scalar::Uint8, AtomicOp::Xor)); |
| 9610 | case uint32_t(ThreadOp::I64AtomicXor16U): |
| 9611 | CHECK( |
| 9612 | EmitAtomicRMW(f, ValType::I64, Scalar::Uint16, AtomicOp::Xor)); |
| 9613 | case uint32_t(ThreadOp::I64AtomicXor32U): |
| 9614 | CHECK( |
| 9615 | EmitAtomicRMW(f, ValType::I64, Scalar::Uint32, AtomicOp::Xor)); |
| 9616 | |
| 9617 | case uint32_t(ThreadOp::I32AtomicXchg): |
| 9618 | CHECK(EmitAtomicXchg(f, ValType::I32, Scalar::Int32)); |
| 9619 | case uint32_t(ThreadOp::I64AtomicXchg): |
| 9620 | CHECK(EmitAtomicXchg(f, ValType::I64, Scalar::Int64)); |
| 9621 | case uint32_t(ThreadOp::I32AtomicXchg8U): |
| 9622 | CHECK(EmitAtomicXchg(f, ValType::I32, Scalar::Uint8)); |
| 9623 | case uint32_t(ThreadOp::I32AtomicXchg16U): |
| 9624 | CHECK(EmitAtomicXchg(f, ValType::I32, Scalar::Uint16)); |
| 9625 | case uint32_t(ThreadOp::I64AtomicXchg8U): |
| 9626 | CHECK(EmitAtomicXchg(f, ValType::I64, Scalar::Uint8)); |
| 9627 | case uint32_t(ThreadOp::I64AtomicXchg16U): |
| 9628 | CHECK(EmitAtomicXchg(f, ValType::I64, Scalar::Uint16)); |
| 9629 | case uint32_t(ThreadOp::I64AtomicXchg32U): |
| 9630 | CHECK(EmitAtomicXchg(f, ValType::I64, Scalar::Uint32)); |
| 9631 | |
| 9632 | case uint32_t(ThreadOp::I32AtomicCmpXchg): |
| 9633 | CHECK(EmitAtomicCmpXchg(f, ValType::I32, Scalar::Int32)); |
| 9634 | case uint32_t(ThreadOp::I64AtomicCmpXchg): |
| 9635 | CHECK(EmitAtomicCmpXchg(f, ValType::I64, Scalar::Int64)); |
| 9636 | case uint32_t(ThreadOp::I32AtomicCmpXchg8U): |
| 9637 | CHECK(EmitAtomicCmpXchg(f, ValType::I32, Scalar::Uint8)); |
| 9638 | case uint32_t(ThreadOp::I32AtomicCmpXchg16U): |
| 9639 | CHECK(EmitAtomicCmpXchg(f, ValType::I32, Scalar::Uint16)); |
| 9640 | case uint32_t(ThreadOp::I64AtomicCmpXchg8U): |
| 9641 | CHECK(EmitAtomicCmpXchg(f, ValType::I64, Scalar::Uint8)); |
| 9642 | case uint32_t(ThreadOp::I64AtomicCmpXchg16U): |
| 9643 | CHECK(EmitAtomicCmpXchg(f, ValType::I64, Scalar::Uint16)); |
| 9644 | case uint32_t(ThreadOp::I64AtomicCmpXchg32U): |
| 9645 | CHECK(EmitAtomicCmpXchg(f, ValType::I64, Scalar::Uint32)); |
| 9646 | |
| 9647 | default: |
| 9648 | return f.iter().unrecognizedOpcode(&op); |
| 9649 | } |
| 9650 | break; |
| 9651 | } |
| 9652 | |
| 9653 | // asm.js-specific operators |
| 9654 | case uint16_t(Op::MozPrefix): { |
| 9655 | if (op.b1 == uint32_t(MozOp::CallBuiltinModuleFunc)) { |
| 9656 | if (!f.codeMeta().isBuiltinModule()) { |
| 9657 | return f.iter().unrecognizedOpcode(&op); |
| 9658 | } |
| 9659 | CHECK(EmitCallBuiltinModuleFunc(f)); |
| 9660 | } |
| 9661 | #ifdef ENABLE_WASM_JSPI1 |
| 9662 | if (op.b1 == uint32_t(MozOp::StackSwitch)) { |
| 9663 | if (!f.codeMeta().isBuiltinModule() || |
| 9664 | !f.codeMeta().jsPromiseIntegrationEnabled()) { |
| 9665 | return f.iter().unrecognizedOpcode(&op); |
| 9666 | } |
| 9667 | CHECK(EmitStackSwitch(f)); |
| 9668 | } |
| 9669 | #endif |
| 9670 | |
| 9671 | if (!f.codeMeta().isAsmJS()) { |
| 9672 | return f.iter().unrecognizedOpcode(&op); |
| 9673 | } |
| 9674 | switch (op.b1) { |
| 9675 | case uint32_t(MozOp::TeeGlobal): |
| 9676 | CHECK(EmitTeeGlobal(f)); |
| 9677 | case uint32_t(MozOp::I32Min): |
| 9678 | case uint32_t(MozOp::I32Max): |
| 9679 | CHECK(EmitMinMax(f, ValType::I32, MIRType::Int32, |
| 9680 | MozOp(op.b1) == MozOp::I32Max)); |
| 9681 | case uint32_t(MozOp::I32Neg): |
| 9682 | CHECK(EmitUnaryWithType<MWasmNeg>(f, ValType::I32, MIRType::Int32)); |
| 9683 | case uint32_t(MozOp::I32BitNot): |
| 9684 | CHECK(EmitBitNot(f, ValType::I32)); |
| 9685 | case uint32_t(MozOp::I32Abs): |
| 9686 | CHECK(EmitUnaryWithType<MAbs>(f, ValType::I32, MIRType::Int32)); |
| 9687 | case uint32_t(MozOp::F32TeeStoreF64): |
| 9688 | CHECK(EmitTeeStoreWithCoercion(f, ValType::F32, Scalar::Float64)); |
| 9689 | case uint32_t(MozOp::F64TeeStoreF32): |
| 9690 | CHECK(EmitTeeStoreWithCoercion(f, ValType::F64, Scalar::Float32)); |
| 9691 | case uint32_t(MozOp::I32TeeStore8): |
| 9692 | CHECK(EmitTeeStore(f, ValType::I32, Scalar::Int8)); |
| 9693 | case uint32_t(MozOp::I32TeeStore16): |
| 9694 | CHECK(EmitTeeStore(f, ValType::I32, Scalar::Int16)); |
| 9695 | case uint32_t(MozOp::I64TeeStore8): |
| 9696 | CHECK(EmitTeeStore(f, ValType::I64, Scalar::Int8)); |
| 9697 | case uint32_t(MozOp::I64TeeStore16): |
| 9698 | CHECK(EmitTeeStore(f, ValType::I64, Scalar::Int16)); |
| 9699 | case uint32_t(MozOp::I64TeeStore32): |
| 9700 | CHECK(EmitTeeStore(f, ValType::I64, Scalar::Int32)); |
| 9701 | case uint32_t(MozOp::I32TeeStore): |
| 9702 | CHECK(EmitTeeStore(f, ValType::I32, Scalar::Int32)); |
| 9703 | case uint32_t(MozOp::I64TeeStore): |
| 9704 | CHECK(EmitTeeStore(f, ValType::I64, Scalar::Int64)); |
| 9705 | case uint32_t(MozOp::F32TeeStore): |
| 9706 | CHECK(EmitTeeStore(f, ValType::F32, Scalar::Float32)); |
| 9707 | case uint32_t(MozOp::F64TeeStore): |
| 9708 | CHECK(EmitTeeStore(f, ValType::F64, Scalar::Float64)); |
| 9709 | case uint32_t(MozOp::F64Mod): |
| 9710 | CHECK(EmitRem(f, ValType::F64, MIRType::Double, |
| 9711 | /* isUnsigned = */ false)); |
| 9712 | case uint32_t(MozOp::F64SinNative): |
| 9713 | CHECK(EmitUnaryMathBuiltinCall(f, SASigSinNativeD)); |
| 9714 | case uint32_t(MozOp::F64SinFdlibm): |
| 9715 | CHECK(EmitUnaryMathBuiltinCall(f, SASigSinFdlibmD)); |
| 9716 | case uint32_t(MozOp::F64CosNative): |
| 9717 | CHECK(EmitUnaryMathBuiltinCall(f, SASigCosNativeD)); |
| 9718 | case uint32_t(MozOp::F64CosFdlibm): |
| 9719 | CHECK(EmitUnaryMathBuiltinCall(f, SASigCosFdlibmD)); |
| 9720 | case uint32_t(MozOp::F64TanNative): |
| 9721 | CHECK(EmitUnaryMathBuiltinCall(f, SASigTanNativeD)); |
| 9722 | case uint32_t(MozOp::F64TanFdlibm): |
| 9723 | CHECK(EmitUnaryMathBuiltinCall(f, SASigTanFdlibmD)); |
| 9724 | case uint32_t(MozOp::F64Asin): |
| 9725 | CHECK(EmitUnaryMathBuiltinCall(f, SASigASinD)); |
| 9726 | case uint32_t(MozOp::F64Acos): |
| 9727 | CHECK(EmitUnaryMathBuiltinCall(f, SASigACosD)); |
| 9728 | case uint32_t(MozOp::F64Atan): |
| 9729 | CHECK(EmitUnaryMathBuiltinCall(f, SASigATanD)); |
| 9730 | case uint32_t(MozOp::F64Exp): |
| 9731 | CHECK(EmitUnaryMathBuiltinCall(f, SASigExpD)); |
| 9732 | case uint32_t(MozOp::F64Log): |
| 9733 | CHECK(EmitUnaryMathBuiltinCall(f, SASigLogD)); |
| 9734 | case uint32_t(MozOp::F64Pow): |
| 9735 | CHECK(EmitBinaryMathBuiltinCall(f, SASigPowD)); |
| 9736 | case uint32_t(MozOp::F64Atan2): |
| 9737 | CHECK(EmitBinaryMathBuiltinCall(f, SASigATan2D)); |
| 9738 | case uint32_t(MozOp::OldCallDirect): |
| 9739 | CHECK(EmitCall(f, /* asmJSFuncDef = */ true)); |
| 9740 | case uint32_t(MozOp::OldCallIndirect): |
| 9741 | CHECK(EmitCallIndirect(f, /* oldStyle = */ true)); |
| 9742 | |
| 9743 | default: |
| 9744 | return f.iter().unrecognizedOpcode(&op); |
| 9745 | } |
| 9746 | break; |
| 9747 | } |
| 9748 | |
| 9749 | default: |
| 9750 | return f.iter().unrecognizedOpcode(&op); |
| 9751 | } |
| 9752 | } |
| 9753 | |
| 9754 | MOZ_CRASH("unreachable")do { do { } while (false); MOZ_ReportCrash("" "unreachable", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 9754); AnnotateMozCrashReason("MOZ_CRASH(" "unreachable" ")" ); do { *((volatile int*)__null) = 9754; __attribute__((nomerge )) ::abort(); } while (false); } while (false); |
| 9755 | |
| 9756 | #undef CHECK |
| 9757 | } |
| 9758 | |
| 9759 | static bool IonBuildMIR(Decoder& d, const CompilerEnvironment& compilerEnv, |
| 9760 | const CodeMetadata& codeMeta, |
| 9761 | const FuncCompileInput& func, |
| 9762 | const ValTypeVector& locals, MIRGenerator& mir, |
| 9763 | TryNoteVector& tryNotes, |
| 9764 | UniqueCompileInfoVector& compileInfos, |
| 9765 | FeatureUsage* observedFeatures, UniqueChars* error) { |
| 9766 | // Initialize MIR global information used for optimization |
| 9767 | if (codeMeta.numMemories() > 0) { |
| 9768 | if (codeMeta.memories[0].indexType() == IndexType::I32) { |
| 9769 | mir.initMinWasmMemory0Length(codeMeta.memories[0].initialLength32()); |
| 9770 | } else { |
| 9771 | mir.initMinWasmMemory0Length(codeMeta.memories[0].initialLength64()); |
| 9772 | } |
| 9773 | } |
| 9774 | |
| 9775 | // Build MIR graph |
| 9776 | FunctionCompiler f(compilerEnv, codeMeta, d, func, locals, mir, |
| 9777 | mir.outerInfo(), tryNotes, compileInfos); |
| 9778 | if (!f.initTopLevel()) { |
| 9779 | return false; |
| 9780 | } |
| 9781 | |
| 9782 | if (!f.startBlock()) { |
| 9783 | return false; |
| 9784 | } |
| 9785 | |
| 9786 | if (!EmitBodyExprs(f)) { |
| 9787 | return false; |
| 9788 | } |
| 9789 | |
| 9790 | f.finish(); |
| 9791 | |
| 9792 | *observedFeatures = f.featureUsage(); |
| 9793 | |
| 9794 | return true; |
| 9795 | } |
| 9796 | |
| 9797 | bool wasm::IonCompileFunctions(const CodeMetadata& codeMeta, |
| 9798 | const CompilerEnvironment& compilerEnv, |
| 9799 | LifoAlloc& lifo, |
| 9800 | const FuncCompileInputVector& inputs, |
| 9801 | CompiledCode* code, UniqueChars* error) { |
| 9802 | MOZ_ASSERT(compilerEnv.tier() == Tier::Optimized)do { static_assert( mozilla::detail::AssertionConditionType< decltype(compilerEnv.tier() == Tier::Optimized)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(compilerEnv.tier() == Tier::Optimized))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("compilerEnv.tier() == Tier::Optimized" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 9802); AnnotateMozCrashReason("MOZ_ASSERT" "(" "compilerEnv.tier() == Tier::Optimized" ")"); do { *((volatile int*)__null) = 9802; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9803 | MOZ_ASSERT(compilerEnv.debug() == DebugEnabled::False)do { static_assert( mozilla::detail::AssertionConditionType< decltype(compilerEnv.debug() == DebugEnabled::False)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(compilerEnv.debug() == DebugEnabled::False))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("compilerEnv.debug() == DebugEnabled::False" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 9803); AnnotateMozCrashReason("MOZ_ASSERT" "(" "compilerEnv.debug() == DebugEnabled::False" ")"); do { *((volatile int*)__null) = 9803; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9804 | |
| 9805 | TempAllocator alloc(&lifo); |
| 9806 | JitContext jitContext; |
| 9807 | MOZ_ASSERT(IsCompilingWasm())do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsCompilingWasm())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsCompilingWasm()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("IsCompilingWasm()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 9807); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsCompilingWasm()" ")"); do { *((volatile int*)__null) = 9807; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9808 | WasmMacroAssembler masm(alloc); |
| 9809 | #if defined(JS_CODEGEN_ARM64) |
| 9810 | masm.SetStackPointer64(PseudoStackPointer64); |
| 9811 | #endif |
| 9812 | |
| 9813 | // Swap in already-allocated empty vectors to avoid malloc/free. |
| 9814 | MOZ_ASSERT(code->empty())do { static_assert( mozilla::detail::AssertionConditionType< decltype(code->empty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(code->empty()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("code->empty()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 9814); AnnotateMozCrashReason("MOZ_ASSERT" "(" "code->empty()" ")"); do { *((volatile int*)__null) = 9814; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9815 | if (!code->swap(masm)) { |
| 9816 | return false; |
| 9817 | } |
| 9818 | |
| 9819 | // Create a description of the stack layout created by GenerateTrapExit(). |
| 9820 | RegisterOffsets trapExitLayout; |
| 9821 | size_t trapExitLayoutNumWords; |
| 9822 | GenerateTrapExitRegisterOffsets(&trapExitLayout, &trapExitLayoutNumWords); |
| 9823 | |
| 9824 | for (const FuncCompileInput& func : inputs) { |
| 9825 | JitSpewCont(JitSpew_Codegen, "\n"); |
| 9826 | JitSpew(JitSpew_Codegen, |
| 9827 | "# ================================" |
| 9828 | "=================================="); |
| 9829 | JitSpew(JitSpew_Codegen, "# =="); |
| 9830 | JitSpew(JitSpew_Codegen, |
| 9831 | "# wasm::IonCompileFunctions: starting on function index %d", |
| 9832 | (int)func.index); |
| 9833 | |
| 9834 | Decoder d(func.begin, func.end, func.lineOrBytecode, error); |
| 9835 | |
| 9836 | // Build the local types vector. |
| 9837 | ValTypeVector locals; |
| 9838 | if (!DecodeLocalEntriesWithParams(d, codeMeta, func.index, &locals)) { |
| 9839 | return false; |
| 9840 | } |
| 9841 | |
| 9842 | // Set up for Ion compilation. |
| 9843 | const JitCompileOptions options; |
| 9844 | MIRGraph graph(&alloc); |
| 9845 | CompileInfo compileInfo(locals.length()); |
| 9846 | // Only activate branch hinting if the option is enabled and some hints were |
| 9847 | // parsed. |
| 9848 | if (codeMeta.branchHintingEnabled() && !codeMeta.branchHints.isEmpty()) { |
| 9849 | compileInfo.setBranchHinting(true); |
| 9850 | } |
| 9851 | |
| 9852 | MIRGenerator mir(nullptr, options, &alloc, &graph, &compileInfo, |
| 9853 | IonOptimizations.get(OptimizationLevel::Wasm)); |
| 9854 | UniqueCompileInfoVector compileInfos; |
| 9855 | |
| 9856 | // Build MIR graph |
| 9857 | FeatureUsage observedFeatures; |
| 9858 | if (!IonBuildMIR(d, compilerEnv, codeMeta, func, locals, mir, |
| 9859 | masm.tryNotes(), compileInfos, &observedFeatures, error)) { |
| 9860 | return false; |
| 9861 | } |
| 9862 | |
| 9863 | // Record observed feature usage |
| 9864 | code->featureUsage |= observedFeatures; |
| 9865 | |
| 9866 | // Compile MIR graph |
| 9867 | { |
| 9868 | jit::SpewBeginWasmFunction(&mir, func.index); |
| 9869 | jit::AutoSpewEndFunction spewEndFunction(&mir); |
| 9870 | |
| 9871 | if (!OptimizeMIR(&mir)) { |
| 9872 | return false; |
| 9873 | } |
| 9874 | |
| 9875 | LIRGraph* lir = GenerateLIR(&mir); |
| 9876 | if (!lir) { |
| 9877 | return false; |
| 9878 | } |
| 9879 | |
| 9880 | size_t unwindInfoBefore = masm.codeRangeUnwindInfos().length(); |
| 9881 | |
| 9882 | CodeGenerator codegen(&mir, lir, &masm); |
| 9883 | |
| 9884 | BytecodeOffset prologueTrapOffset(func.lineOrBytecode); |
| 9885 | FuncOffsets offsets; |
| 9886 | ArgTypeVector args(codeMeta.getFuncType(func.index)); |
| 9887 | if (!codegen.generateWasm(CallIndirectId::forFunc(codeMeta, func.index), |
| 9888 | prologueTrapOffset, args, trapExitLayout, |
| 9889 | trapExitLayoutNumWords, &offsets, |
| 9890 | &code->stackMaps, &d)) { |
| 9891 | return false; |
| 9892 | } |
| 9893 | |
| 9894 | bool hasUnwindInfo = |
| 9895 | unwindInfoBefore != masm.codeRangeUnwindInfos().length(); |
| 9896 | |
| 9897 | // Record this function's code range |
| 9898 | if (!code->codeRanges.emplaceBack(func.index, offsets, hasUnwindInfo)) { |
| 9899 | return false; |
| 9900 | } |
| 9901 | } |
| 9902 | |
| 9903 | // Record this function's specific feature usage |
| 9904 | if (!code->funcs.emplaceBack(func.index, observedFeatures)) { |
| 9905 | return false; |
| 9906 | } |
| 9907 | |
| 9908 | JitSpew(JitSpew_Codegen, |
| 9909 | "# wasm::IonCompileFunctions: completed function index %d", |
| 9910 | (int)func.index); |
| 9911 | JitSpew(JitSpew_Codegen, "# =="); |
| 9912 | JitSpew(JitSpew_Codegen, |
| 9913 | "# ================================" |
| 9914 | "=================================="); |
| 9915 | JitSpewCont(JitSpew_Codegen, "\n"); |
| 9916 | } |
| 9917 | |
| 9918 | masm.finish(); |
| 9919 | if (masm.oom()) { |
| 9920 | return false; |
| 9921 | } |
| 9922 | |
| 9923 | return code->swap(masm); |
| 9924 | } |
| 9925 | |
| 9926 | bool wasm::IonDumpFunction(const CompilerEnvironment& compilerEnv, |
| 9927 | const CodeMetadata& codeMeta, |
| 9928 | const FuncCompileInput& func, |
| 9929 | IonDumpContents contents, GenericPrinter& out, |
| 9930 | UniqueChars* error) { |
| 9931 | LifoAlloc lifo(TempAllocator::PreferredLifoChunkSize); |
| 9932 | TempAllocator alloc(&lifo); |
| 9933 | JitContext jitContext; |
| 9934 | Decoder d(func.begin, func.end, func.lineOrBytecode, error); |
| 9935 | |
| 9936 | // Decode the locals. |
| 9937 | ValTypeVector locals; |
| 9938 | if (!DecodeLocalEntriesWithParams(d, codeMeta, func.index, &locals)) { |
| 9939 | return false; |
| 9940 | } |
| 9941 | |
| 9942 | // Set up for Ion compilation. |
| 9943 | const JitCompileOptions options; |
| 9944 | MIRGraph graph(&alloc); |
| 9945 | CompileInfo compileInfo(locals.length()); |
| 9946 | MIRGenerator mir(nullptr, options, &alloc, &graph, &compileInfo, |
| 9947 | IonOptimizations.get(OptimizationLevel::Wasm)); |
| 9948 | |
| 9949 | // Build MIR graph |
| 9950 | TryNoteVector tryNotes; |
| 9951 | UniqueCompileInfoVector compileInfos; |
| 9952 | FeatureUsage observedFeatures; |
| 9953 | if (!IonBuildMIR(d, compilerEnv, codeMeta, func, locals, mir, tryNotes, |
| 9954 | compileInfos, &observedFeatures, error)) { |
| 9955 | return false; |
| 9956 | } |
| 9957 | |
| 9958 | if (contents == IonDumpContents::UnoptimizedMIR) { |
| 9959 | graph.dump(out); |
| 9960 | return true; |
| 9961 | } |
| 9962 | |
| 9963 | // Optimize the MIR graph |
| 9964 | if (!OptimizeMIR(&mir)) { |
| 9965 | return false; |
| 9966 | } |
| 9967 | |
| 9968 | if (contents == IonDumpContents::OptimizedMIR) { |
| 9969 | graph.dump(out); |
| 9970 | return true; |
| 9971 | } |
| 9972 | |
| 9973 | #ifdef JS_JITSPEW1 |
| 9974 | // Generate the LIR graph |
| 9975 | LIRGraph* lir = GenerateLIR(&mir); |
| 9976 | if (!lir) { |
| 9977 | return false; |
| 9978 | } |
| 9979 | |
| 9980 | MOZ_ASSERT(contents == IonDumpContents::LIR)do { static_assert( mozilla::detail::AssertionConditionType< decltype(contents == IonDumpContents::LIR)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(contents == IonDumpContents:: LIR))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("contents == IonDumpContents::LIR", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/wasm/WasmIonCompile.cpp" , 9980); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contents == IonDumpContents::LIR" ")"); do { *((volatile int*)__null) = 9980; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9981 | lir->dump(out); |
| 9982 | #else |
| 9983 | out.printf("cannot dump LIR without --enable-jitspew"); |
| 9984 | #endif |
| 9985 | return true; |
| 9986 | } |
| 9987 | |
| 9988 | bool js::wasm::IonPlatformSupport() { |
| 9989 | #if defined(JS_CODEGEN_X641) || defined(JS_CODEGEN_X86) || \ |
| 9990 | defined(JS_CODEGEN_ARM) || defined(JS_CODEGEN_MIPS64) || \ |
| 9991 | defined(JS_CODEGEN_ARM64) || defined(JS_CODEGEN_LOONG64) || \ |
| 9992 | defined(JS_CODEGEN_RISCV64) |
| 9993 | return true; |
| 9994 | #else |
| 9995 | return false; |
| 9996 | #endif |
| 9997 | } |