diff options
Diffstat (limited to 'Source/JavaScriptCore/jit/JITInlineMethods.h')
| -rw-r--r-- | Source/JavaScriptCore/jit/JITInlineMethods.h | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/Source/JavaScriptCore/jit/JITInlineMethods.h b/Source/JavaScriptCore/jit/JITInlineMethods.h index 35ac44b23..302e109ca 100644 --- a/Source/JavaScriptCore/jit/JITInlineMethods.h +++ b/Source/JavaScriptCore/jit/JITInlineMethods.h @@ -443,7 +443,7 @@ inline void JIT::emitAllocateBasicStorage(size_t size, ptrdiff_t offsetFromBase, subPtr(TrustedImm32(size - offsetFromBase), result); } -inline void JIT::emitAllocateJSArray(unsigned valuesRegister, unsigned length, RegisterID cellResult, RegisterID storageResult, RegisterID storagePtr) +inline void JIT::emitAllocateJSArray(unsigned valuesRegister, unsigned length, RegisterID cellResult, RegisterID storageResult, RegisterID storagePtr, RegisterID scratch) { unsigned initialLength = std::max(length, 4U); size_t initialStorage = Butterfly::totalSize(0, 0, true, ArrayStorage::sizeFor(initialLength)); @@ -453,7 +453,8 @@ inline void JIT::emitAllocateJSArray(unsigned valuesRegister, unsigned length, R emitAllocateBasicStorage(initialStorage, sizeof(IndexingHeader), storageResult); // Allocate the cell for the array. - emitAllocateBasicJSObject<JSArray, false>(TrustedImmPtr(m_codeBlock->globalObject()->arrayStructure()), cellResult, storagePtr); + loadPtr(m_codeBlock->globalObject()->addressOfArrayStructure(), scratch); + emitAllocateBasicJSObject<JSArray, false>(scratch, cellResult, storagePtr); // Store all the necessary info in the ArrayStorage. store32(Imm32(length), Address(storageResult, ArrayStorage::lengthOffset())); @@ -529,7 +530,31 @@ inline void JIT::emitValueProfilingSite() { emitValueProfilingSite(m_bytecodeOffset); } +#endif // ENABLE(VALUE_PROFILER) + +inline void JIT::emitArrayProfilingSite(RegisterID structureAndIndexingType, RegisterID scratch, ArrayProfile* arrayProfile) +{ + RegisterID structure = structureAndIndexingType; + RegisterID indexingType = structureAndIndexingType; + + if (canBeOptimized()) { + storePtr(structure, arrayProfile->addressOfLastSeenStructure()); + load8(Address(structure, Structure::indexingTypeOffset()), indexingType); + move(TrustedImm32(1), scratch); + lshift32(indexingType, scratch); + or32(scratch, AbsoluteAddress(arrayProfile->addressOfArrayModes())); + } else + load8(Address(structure, Structure::indexingTypeOffset()), indexingType); +} + +inline void JIT::emitArrayProfilingSiteForBytecodeIndex(RegisterID structureAndIndexingType, RegisterID scratch, unsigned bytecodeIndex) +{ +#if ENABLE(VALUE_PROFILER) + emitArrayProfilingSite(structureAndIndexingType, scratch, m_codeBlock->getOrAddArrayProfile(bytecodeIndex)); +#else + emitArrayProfilingSite(structureAndIndexingType, scratch, 0); #endif +} #if USE(JSVALUE32_64) |