| /* |
| * Copyright (C) 2008, 2012 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef JIT_h |
| #define JIT_h |
| |
| #if ENABLE(JIT) |
| |
| // Verbose logging of code generation |
| #define ENABLE_JIT_VERBOSE 0 |
| // Verbose logging for OSR-related code. |
| #define ENABLE_JIT_VERBOSE_OSR 0 |
| |
| // We've run into some problems where changing the size of the class JIT leads to |
| // performance fluctuations. Try forcing alignment in an attempt to stabalize this. |
| #if COMPILER(GCC) |
| #define JIT_CLASS_ALIGNMENT __attribute__ ((aligned (32))) |
| #else |
| #define JIT_CLASS_ALIGNMENT |
| #endif |
| |
| #define ASSERT_JIT_OFFSET(actual, expected) ASSERT_WITH_MESSAGE(actual == expected, "JIT Offset \"%s\" should be %d, not %d.\n", #expected, static_cast<int>(expected), static_cast<int>(actual)); |
| |
| #include "CodeBlock.h" |
| #include "CompactJITCodeMap.h" |
| #include "Interpreter.h" |
| #include "JITDisassembler.h" |
| #include "JSInterfaceJIT.h" |
| #include "LegacyProfiler.h" |
| #include "Opcode.h" |
| #include <bytecode/SamplingTool.h> |
| |
| namespace JSC { |
| |
| class CodeBlock; |
| class FunctionExecutable; |
| class JIT; |
| class JSPropertyNameIterator; |
| class Interpreter; |
| class JSScope; |
| class JSStack; |
| class Register; |
| class StructureChain; |
| |
| struct CallLinkInfo; |
| struct Instruction; |
| struct OperandTypes; |
| struct PolymorphicAccessStructureList; |
| struct SimpleJumpTable; |
| struct StringJumpTable; |
| struct StructureStubInfo; |
| |
| struct CallRecord { |
| MacroAssembler::Call from; |
| unsigned bytecodeOffset; |
| void* to; |
| |
| CallRecord() |
| { |
| } |
| |
| CallRecord(MacroAssembler::Call from, unsigned bytecodeOffset, void* to = 0) |
| : from(from) |
| , bytecodeOffset(bytecodeOffset) |
| , to(to) |
| { |
| } |
| }; |
| |
| struct JumpTable { |
| MacroAssembler::Jump from; |
| unsigned toBytecodeOffset; |
| |
| JumpTable(MacroAssembler::Jump f, unsigned t) |
| : from(f) |
| , toBytecodeOffset(t) |
| { |
| } |
| }; |
| |
| struct SlowCaseEntry { |
| MacroAssembler::Jump from; |
| unsigned to; |
| unsigned hint; |
| |
| SlowCaseEntry(MacroAssembler::Jump f, unsigned t, unsigned h = 0) |
| : from(f) |
| , to(t) |
| , hint(h) |
| { |
| } |
| }; |
| |
| struct SwitchRecord { |
| enum Type { |
| Immediate, |
| Character, |
| String |
| }; |
| |
| Type type; |
| |
| union { |
| SimpleJumpTable* simpleJumpTable; |
| StringJumpTable* stringJumpTable; |
| } jumpTable; |
| |
| unsigned bytecodeOffset; |
| unsigned defaultOffset; |
| |
| SwitchRecord(SimpleJumpTable* jumpTable, unsigned bytecodeOffset, unsigned defaultOffset, Type type) |
| : type(type) |
| , bytecodeOffset(bytecodeOffset) |
| , defaultOffset(defaultOffset) |
| { |
| this->jumpTable.simpleJumpTable = jumpTable; |
| } |
| |
| SwitchRecord(StringJumpTable* jumpTable, unsigned bytecodeOffset, unsigned defaultOffset) |
| : type(String) |
| , bytecodeOffset(bytecodeOffset) |
| , defaultOffset(defaultOffset) |
| { |
| this->jumpTable.stringJumpTable = jumpTable; |
| } |
| }; |
| |
| enum PropertyStubGetById_T { PropertyStubGetById }; |
| enum PropertyStubPutById_T { PropertyStubPutById }; |
| |
| struct PropertyStubCompilationInfo { |
| enum Type { GetById, PutById } m_type; |
| |
| unsigned bytecodeIndex; |
| MacroAssembler::Call callReturnLocation; |
| MacroAssembler::Label hotPathBegin; |
| MacroAssembler::DataLabelPtr getStructureToCompare; |
| MacroAssembler::PatchableJump getStructureCheck; |
| MacroAssembler::ConvertibleLoadLabel propertyStorageLoad; |
| #if USE(JSVALUE64) |
| MacroAssembler::DataLabelCompact getDisplacementLabel; |
| #else |
| MacroAssembler::DataLabelCompact getDisplacementLabel1; |
| MacroAssembler::DataLabelCompact getDisplacementLabel2; |
| #endif |
| MacroAssembler::Label getPutResult; |
| MacroAssembler::Label getColdPathBegin; |
| MacroAssembler::DataLabelPtr putStructureToCompare; |
| #if USE(JSVALUE64) |
| MacroAssembler::DataLabel32 putDisplacementLabel; |
| #else |
| MacroAssembler::DataLabel32 putDisplacementLabel1; |
| MacroAssembler::DataLabel32 putDisplacementLabel2; |
| #endif |
| |
| #if !ASSERT_DISABLED |
| PropertyStubCompilationInfo() |
| : bytecodeIndex(std::numeric_limits<unsigned>::max()) |
| { |
| } |
| #endif |
| |
| |
| PropertyStubCompilationInfo( |
| PropertyStubGetById_T, unsigned bytecodeIndex, MacroAssembler::Label hotPathBegin, |
| MacroAssembler::DataLabelPtr structureToCompare, |
| MacroAssembler::PatchableJump structureCheck, |
| MacroAssembler::ConvertibleLoadLabel propertyStorageLoad, |
| #if USE(JSVALUE64) |
| MacroAssembler::DataLabelCompact displacementLabel, |
| #else |
| MacroAssembler::DataLabelCompact displacementLabel1, |
| MacroAssembler::DataLabelCompact displacementLabel2, |
| #endif |
| MacroAssembler::Label putResult) |
| : m_type(GetById) |
| , bytecodeIndex(bytecodeIndex) |
| , hotPathBegin(hotPathBegin) |
| , getStructureToCompare(structureToCompare) |
| , getStructureCheck(structureCheck) |
| , propertyStorageLoad(propertyStorageLoad) |
| #if USE(JSVALUE64) |
| , getDisplacementLabel(displacementLabel) |
| #else |
| , getDisplacementLabel1(displacementLabel1) |
| , getDisplacementLabel2(displacementLabel2) |
| #endif |
| , getPutResult(putResult) |
| { |
| } |
| |
| PropertyStubCompilationInfo( |
| PropertyStubPutById_T, unsigned bytecodeIndex, MacroAssembler::Label hotPathBegin, |
| MacroAssembler::DataLabelPtr structureToCompare, |
| MacroAssembler::ConvertibleLoadLabel propertyStorageLoad, |
| #if USE(JSVALUE64) |
| MacroAssembler::DataLabel32 displacementLabel |
| #else |
| MacroAssembler::DataLabel32 displacementLabel1, |
| MacroAssembler::DataLabel32 displacementLabel2 |
| #endif |
| ) |
| : m_type(PutById) |
| , bytecodeIndex(bytecodeIndex) |
| , hotPathBegin(hotPathBegin) |
| , propertyStorageLoad(propertyStorageLoad) |
| , putStructureToCompare(structureToCompare) |
| #if USE(JSVALUE64) |
| , putDisplacementLabel(displacementLabel) |
| #else |
| , putDisplacementLabel1(displacementLabel1) |
| , putDisplacementLabel2(displacementLabel2) |
| #endif |
| { |
| } |
| |
| void slowCaseInfo(PropertyStubGetById_T, MacroAssembler::Label coldPathBegin, MacroAssembler::Call call) |
| { |
| ASSERT(m_type == GetById); |
| callReturnLocation = call; |
| getColdPathBegin = coldPathBegin; |
| } |
| |
| void slowCaseInfo(PropertyStubPutById_T, MacroAssembler::Call call) |
| { |
| ASSERT(m_type == PutById); |
| callReturnLocation = call; |
| } |
| |
| void copyToStubInfo(StructureStubInfo& info, LinkBuffer &patchBuffer); |
| }; |
| |
| struct ByValCompilationInfo { |
| ByValCompilationInfo() { } |
| |
| ByValCompilationInfo(unsigned bytecodeIndex, MacroAssembler::PatchableJump badTypeJump, JITArrayMode arrayMode, MacroAssembler::Label doneTarget) |
| : bytecodeIndex(bytecodeIndex) |
| , badTypeJump(badTypeJump) |
| , arrayMode(arrayMode) |
| , doneTarget(doneTarget) |
| { |
| } |
| |
| unsigned bytecodeIndex; |
| MacroAssembler::PatchableJump badTypeJump; |
| JITArrayMode arrayMode; |
| MacroAssembler::Label doneTarget; |
| MacroAssembler::Label slowPathTarget; |
| MacroAssembler::Call returnAddress; |
| }; |
| |
| struct StructureStubCompilationInfo { |
| MacroAssembler::DataLabelPtr hotPathBegin; |
| MacroAssembler::Call hotPathOther; |
| MacroAssembler::Call callReturnLocation; |
| CallLinkInfo::CallType callType; |
| unsigned bytecodeIndex; |
| }; |
| |
| // Near calls can only be patched to other JIT code, regular calls can be patched to JIT code or relinked to stub functions. |
| void ctiPatchNearCallByReturnAddress(CodeBlock* codeblock, ReturnAddressPtr returnAddress, MacroAssemblerCodePtr newCalleeFunction); |
| void ctiPatchCallByReturnAddress(CodeBlock* codeblock, ReturnAddressPtr returnAddress, MacroAssemblerCodePtr newCalleeFunction); |
| void ctiPatchCallByReturnAddress(CodeBlock* codeblock, ReturnAddressPtr returnAddress, FunctionPtr newCalleeFunction); |
| |
| class JIT : private JSInterfaceJIT { |
| friend class JITStubCall; |
| friend struct PropertyStubCompilationInfo; |
| |
| using MacroAssembler::Jump; |
| using MacroAssembler::JumpList; |
| using MacroAssembler::Label; |
| |
| static const int patchGetByIdDefaultStructure = -1; |
| static const int patchGetByIdDefaultOffset = 0; |
| // Magic number - initial offset cannot be representable as a signed 8bit value, or the X86Assembler |
| // will compress the displacement, and we may not be able to fit a patched offset. |
| static const int patchPutByIdDefaultOffset = 256; |
| |
| public: |
| static JITCode compile(JSGlobalData* globalData, CodeBlock* codeBlock, JITCompilationEffort effort, CodePtr* functionEntryArityCheck = 0) |
| { |
| return JIT(globalData, codeBlock).privateCompile(functionEntryArityCheck, effort); |
| } |
| |
| static void compileGetByIdProto(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* structure, Structure* prototypeStructure, const Identifier& ident, const PropertySlot& slot, PropertyOffset cachedOffset, ReturnAddressPtr returnAddress) |
| { |
| JIT jit(globalData, codeBlock); |
| jit.m_bytecodeOffset = stubInfo->bytecodeIndex; |
| jit.privateCompileGetByIdProto(stubInfo, structure, prototypeStructure, ident, slot, cachedOffset, returnAddress, callFrame); |
| } |
| |
| static void compileGetByIdSelfList(JSGlobalData* globalData, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* polymorphicStructures, int currentIndex, Structure* structure, const Identifier& ident, const PropertySlot& slot, PropertyOffset cachedOffset) |
| { |
| JIT jit(globalData, codeBlock); |
| jit.m_bytecodeOffset = stubInfo->bytecodeIndex; |
| jit.privateCompileGetByIdSelfList(stubInfo, polymorphicStructures, currentIndex, structure, ident, slot, cachedOffset); |
| } |
| static void compileGetByIdProtoList(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* prototypeStructureList, int currentIndex, Structure* structure, Structure* prototypeStructure, const Identifier& ident, const PropertySlot& slot, PropertyOffset cachedOffset) |
| { |
| JIT jit(globalData, codeBlock); |
| jit.m_bytecodeOffset = stubInfo->bytecodeIndex; |
| jit.privateCompileGetByIdProtoList(stubInfo, prototypeStructureList, currentIndex, structure, prototypeStructure, ident, slot, cachedOffset, callFrame); |
| } |
| static void compileGetByIdChainList(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* prototypeStructureList, int currentIndex, Structure* structure, StructureChain* chain, size_t count, const Identifier& ident, const PropertySlot& slot, PropertyOffset cachedOffset) |
| { |
| JIT jit(globalData, codeBlock); |
| jit.m_bytecodeOffset = stubInfo->bytecodeIndex; |
| jit.privateCompileGetByIdChainList(stubInfo, prototypeStructureList, currentIndex, structure, chain, count, ident, slot, cachedOffset, callFrame); |
| } |
| |
| static void compileGetByIdChain(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* structure, StructureChain* chain, size_t count, const Identifier& ident, const PropertySlot& slot, PropertyOffset cachedOffset, ReturnAddressPtr returnAddress) |
| { |
| JIT jit(globalData, codeBlock); |
| jit.m_bytecodeOffset = stubInfo->bytecodeIndex; |
| jit.privateCompileGetByIdChain(stubInfo, structure, chain, count, ident, slot, cachedOffset, returnAddress, callFrame); |
| } |
| |
| static void compilePutByIdTransition(JSGlobalData* globalData, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* oldStructure, Structure* newStructure, PropertyOffset cachedOffset, StructureChain* chain, ReturnAddressPtr returnAddress, bool direct) |
| { |
| JIT jit(globalData, codeBlock); |
| jit.m_bytecodeOffset = stubInfo->bytecodeIndex; |
| jit.privateCompilePutByIdTransition(stubInfo, oldStructure, newStructure, cachedOffset, chain, returnAddress, direct); |
| } |
| |
| static void compileGetByVal(JSGlobalData* globalData, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, JITArrayMode arrayMode) |
| { |
| JIT jit(globalData, codeBlock); |
| jit.m_bytecodeOffset = byValInfo->bytecodeIndex; |
| jit.privateCompileGetByVal(byValInfo, returnAddress, arrayMode); |
| } |
| |
| static void compilePutByVal(JSGlobalData* globalData, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, JITArrayMode arrayMode) |
| { |
| JIT jit(globalData, codeBlock); |
| jit.m_bytecodeOffset = byValInfo->bytecodeIndex; |
| jit.privateCompilePutByVal(byValInfo, returnAddress, arrayMode); |
| } |
| |
| static PassRefPtr<ExecutableMemoryHandle> compileCTIMachineTrampolines(JSGlobalData* globalData, TrampolineStructure *trampolines) |
| { |
| if (!globalData->canUseJIT()) |
| return 0; |
| JIT jit(globalData, 0); |
| return jit.privateCompileCTIMachineTrampolines(globalData, trampolines); |
| } |
| |
| static CodeRef compileCTINativeCall(JSGlobalData* globalData, NativeFunction func) |
| { |
| if (!globalData->canUseJIT()) { |
| #if ENABLE(LLINT) |
| return CodeRef::createLLIntCodeRef(llint_native_call_trampoline); |
| #else |
| return CodeRef(); |
| #endif |
| } |
| JIT jit(globalData, 0); |
| return jit.privateCompileCTINativeCall(globalData, func); |
| } |
| |
| static void resetPatchGetById(RepatchBuffer&, StructureStubInfo*); |
| static void resetPatchPutById(RepatchBuffer&, StructureStubInfo*); |
| static void patchGetByIdSelf(CodeBlock*, StructureStubInfo*, Structure*, PropertyOffset cachedOffset, ReturnAddressPtr); |
| static void patchPutByIdReplace(CodeBlock*, StructureStubInfo*, Structure*, PropertyOffset cachedOffset, ReturnAddressPtr, bool direct); |
| |
| static void compilePatchGetArrayLength(JSGlobalData* globalData, CodeBlock* codeBlock, ReturnAddressPtr returnAddress) |
| { |
| JIT jit(globalData, codeBlock); |
| #if ENABLE(DFG_JIT) |
| // Force profiling to be enabled during stub generation. |
| jit.m_canBeOptimized = true; |
| #endif // ENABLE(DFG_JIT) |
| return jit.privateCompilePatchGetArrayLength(returnAddress); |
| } |
| |
| static void linkFor(JSFunction* callee, CodeBlock* callerCodeBlock, CodeBlock* calleeCodeBlock, CodePtr, CallLinkInfo*, JSGlobalData*, CodeSpecializationKind); |
| |
| private: |
| JIT(JSGlobalData*, CodeBlock* = 0); |
| |
| void privateCompileMainPass(); |
| void privateCompileLinkPass(); |
| void privateCompileSlowCases(); |
| JITCode privateCompile(CodePtr* functionEntryArityCheck, JITCompilationEffort); |
| |
| void privateCompileGetByIdProto(StructureStubInfo*, Structure*, Structure* prototypeStructure, const Identifier&, const PropertySlot&, PropertyOffset cachedOffset, ReturnAddressPtr, CallFrame*); |
| void privateCompileGetByIdSelfList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, const Identifier&, const PropertySlot&, PropertyOffset cachedOffset); |
| void privateCompileGetByIdProtoList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, Structure* prototypeStructure, const Identifier&, const PropertySlot&, PropertyOffset cachedOffset, CallFrame*); |
| void privateCompileGetByIdChainList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, StructureChain*, size_t count, const Identifier&, const PropertySlot&, PropertyOffset cachedOffset, CallFrame*); |
| void privateCompileGetByIdChain(StructureStubInfo*, Structure*, StructureChain*, size_t count, const Identifier&, const PropertySlot&, PropertyOffset cachedOffset, ReturnAddressPtr, CallFrame*); |
| void privateCompilePutByIdTransition(StructureStubInfo*, Structure*, Structure*, PropertyOffset cachedOffset, StructureChain*, ReturnAddressPtr, bool direct); |
| |
| void privateCompileGetByVal(ByValInfo*, ReturnAddressPtr, JITArrayMode); |
| void privateCompilePutByVal(ByValInfo*, ReturnAddressPtr, JITArrayMode); |
| |
| PassRefPtr<ExecutableMemoryHandle> privateCompileCTIMachineTrampolines(JSGlobalData*, TrampolineStructure*); |
| Label privateCompileCTINativeCall(JSGlobalData*, bool isConstruct = false); |
| CodeRef privateCompileCTINativeCall(JSGlobalData*, NativeFunction); |
| void privateCompilePatchGetArrayLength(ReturnAddressPtr returnAddress); |
| |
| static bool isDirectPutById(StructureStubInfo*); |
| |
| void addSlowCase(Jump); |
| void addSlowCase(JumpList); |
| void addSlowCase(); |
| void addJump(Jump, int); |
| void emitJumpSlowToHot(Jump, int); |
| |
| void compileOpCall(OpcodeID, Instruction*, unsigned callLinkInfoIndex); |
| void compileOpCallSlowCase(OpcodeID, Instruction*, Vector<SlowCaseEntry>::iterator&, unsigned callLinkInfoIndex); |
| void compileLoadVarargs(Instruction*); |
| void compileCallEval(); |
| void compileCallEvalSlowCase(Vector<SlowCaseEntry>::iterator&); |
| |
| enum CompileOpStrictEqType { OpStrictEq, OpNStrictEq }; |
| void compileOpStrictEq(Instruction* instruction, CompileOpStrictEqType type); |
| bool isOperandConstantImmediateDouble(unsigned src); |
| |
| void emitLoadDouble(int index, FPRegisterID value); |
| void emitLoadInt32ToDouble(int index, FPRegisterID value); |
| Jump emitJumpIfNotObject(RegisterID structureReg); |
| Jump emitJumpIfNotType(RegisterID baseReg, RegisterID scratchReg, JSType); |
| |
| Jump addStructureTransitionCheck(JSCell*, Structure*, StructureStubInfo*, RegisterID scratch); |
| void addStructureTransitionCheck(JSCell*, Structure*, StructureStubInfo*, JumpList& failureCases, RegisterID scratch); |
| void testPrototype(JSValue, JumpList& failureCases, StructureStubInfo*); |
| |
| enum WriteBarrierMode { UnconditionalWriteBarrier, ShouldFilterImmediates }; |
| // value register in write barrier is used before any scratch registers |
| // so may safely be the same as either of the scratch registers. |
| void emitWriteBarrier(RegisterID owner, RegisterID valueTag, RegisterID scratch, RegisterID scratch2, WriteBarrierMode, WriteBarrierUseKind); |
| void emitWriteBarrier(JSCell* owner, RegisterID value, RegisterID scratch, WriteBarrierMode, WriteBarrierUseKind); |
| |
| template<typename ClassType, MarkedBlock::DestructorType, typename StructureType> void emitAllocateBasicJSObject(StructureType, RegisterID result, RegisterID storagePtr); |
| template<typename T> void emitAllocateJSFinalObject(T structure, RegisterID result, RegisterID storagePtr); |
| |
| #if ENABLE(VALUE_PROFILER) |
| // This assumes that the value to profile is in regT0 and that regT3 is available for |
| // scratch. |
| void emitValueProfilingSite(ValueProfile*); |
| void emitValueProfilingSite(unsigned bytecodeOffset); |
| void emitValueProfilingSite(); |
| #else |
| void emitValueProfilingSite(unsigned) { } |
| void emitValueProfilingSite() { } |
| #endif |
| void emitArrayProfilingSite(RegisterID structureAndIndexingType, RegisterID scratch, ArrayProfile*); |
| void emitArrayProfilingSiteForBytecodeIndex(RegisterID structureAndIndexingType, RegisterID scratch, unsigned bytecodeIndex); |
| void emitArrayProfileStoreToHoleSpecialCase(ArrayProfile*); |
| void emitArrayProfileOutOfBoundsSpecialCase(ArrayProfile*); |
| |
| JITArrayMode chooseArrayMode(ArrayProfile*); |
| |
| // Property is in regT1, base is in regT0. regT2 contains indexing type. |
| // Property is int-checked and zero extended. Base is cell checked. |
| // Structure is already profiled. Returns the slow cases. Fall-through |
| // case contains result in regT0, and it is not yet profiled. |
| JumpList emitInt32GetByVal(Instruction* instruction, PatchableJump& badType) { return emitContiguousGetByVal(instruction, badType, Int32Shape); } |
| JumpList emitDoubleGetByVal(Instruction*, PatchableJump& badType); |
| JumpList emitContiguousGetByVal(Instruction*, PatchableJump& badType, IndexingType expectedShape = ContiguousShape); |
| JumpList emitArrayStorageGetByVal(Instruction*, PatchableJump& badType); |
| JumpList emitIntTypedArrayGetByVal(Instruction*, PatchableJump& badType, const TypedArrayDescriptor&, size_t elementSize, TypedArraySignedness); |
| JumpList emitFloatTypedArrayGetByVal(Instruction*, PatchableJump& badType, const TypedArrayDescriptor&, size_t elementSize); |
| |
| // Property is in regT0, base is in regT0. regT2 contains indecing type. |
| // The value to store is not yet loaded. Property is int-checked and |
| // zero-extended. Base is cell checked. Structure is already profiled. |
| // returns the slow cases. |
| JumpList emitInt32PutByVal(Instruction* currentInstruction, PatchableJump& badType) |
| { |
| return emitGenericContiguousPutByVal(currentInstruction, badType, Int32Shape); |
| } |
| JumpList emitDoublePutByVal(Instruction* currentInstruction, PatchableJump& badType) |
| { |
| return emitGenericContiguousPutByVal(currentInstruction, badType, DoubleShape); |
| } |
| JumpList emitContiguousPutByVal(Instruction* currentInstruction, PatchableJump& badType) |
| { |
| return emitGenericContiguousPutByVal(currentInstruction, badType); |
| } |
| JumpList emitGenericContiguousPutByVal(Instruction*, PatchableJump& badType, IndexingType indexingShape = ContiguousShape); |
| JumpList emitArrayStoragePutByVal(Instruction*, PatchableJump& badType); |
| JumpList emitIntTypedArrayPutByVal(Instruction*, PatchableJump& badType, const TypedArrayDescriptor&, size_t elementSize, TypedArraySignedness, TypedArrayRounding); |
| JumpList emitFloatTypedArrayPutByVal(Instruction*, PatchableJump& badType, const TypedArrayDescriptor&, size_t elementSize); |
| |
| enum FinalObjectMode { MayBeFinal, KnownNotFinal }; |
| |
| #if USE(JSVALUE32_64) |
| bool getOperandConstantImmediateInt(unsigned op1, unsigned op2, unsigned& op, int32_t& constant); |
| |
| void emitLoadTag(int index, RegisterID tag); |
| void emitLoadPayload(int index, RegisterID payload); |
| |
| void emitLoad(const JSValue& v, RegisterID tag, RegisterID payload); |
| void emitLoad(int index, RegisterID tag, RegisterID payload, RegisterID base = callFrameRegister); |
| void emitLoad2(int index1, RegisterID tag1, RegisterID payload1, int index2, RegisterID tag2, RegisterID payload2); |
| |
| void emitStore(int index, RegisterID tag, RegisterID payload, RegisterID base = callFrameRegister); |
| void emitStore(int index, const JSValue constant, RegisterID base = callFrameRegister); |
| void emitStoreInt32(int index, RegisterID payload, bool indexIsInt32 = false); |
| void emitStoreInt32(int index, TrustedImm32 payload, bool indexIsInt32 = false); |
| void emitStoreAndMapInt32(int index, RegisterID tag, RegisterID payload, bool indexIsInt32, size_t opcodeLength); |
| void emitStoreCell(int index, RegisterID payload, bool indexIsCell = false); |
| void emitStoreBool(int index, RegisterID payload, bool indexIsBool = false); |
| void emitStoreDouble(int index, FPRegisterID value); |
| |
| bool isLabeled(unsigned bytecodeOffset); |
| void map(unsigned bytecodeOffset, int virtualRegisterIndex, RegisterID tag, RegisterID payload); |
| void unmap(RegisterID); |
| void unmap(); |
| bool isMapped(int virtualRegisterIndex); |
| bool getMappedPayload(int virtualRegisterIndex, RegisterID& payload); |
| bool getMappedTag(int virtualRegisterIndex, RegisterID& tag); |
| |
| void emitJumpSlowCaseIfNotJSCell(int virtualRegisterIndex); |
| void emitJumpSlowCaseIfNotJSCell(int virtualRegisterIndex, RegisterID tag); |
| |
| void compileGetByIdHotPath(Identifier*); |
| void compileGetByIdSlowCase(int resultVReg, int baseVReg, Identifier*, Vector<SlowCaseEntry>::iterator&); |
| void compileGetDirectOffset(RegisterID base, RegisterID resultTag, RegisterID resultPayload, PropertyOffset cachedOffset); |
| void compileGetDirectOffset(JSObject* base, RegisterID resultTag, RegisterID resultPayload, PropertyOffset cachedOffset); |
| void compileGetDirectOffset(RegisterID base, RegisterID resultTag, RegisterID resultPayload, RegisterID offset, FinalObjectMode = MayBeFinal); |
| void compilePutDirectOffset(RegisterID base, RegisterID valueTag, RegisterID valuePayload, PropertyOffset cachedOffset); |
| |
| // Arithmetic opcode helpers |
| void emitAdd32Constant(unsigned dst, unsigned op, int32_t constant, ResultType opType); |
| void emitSub32Constant(unsigned dst, unsigned op, int32_t constant, ResultType opType); |
| void emitBinaryDoubleOp(OpcodeID, unsigned dst, unsigned op1, unsigned op2, OperandTypes, JumpList& notInt32Op1, JumpList& notInt32Op2, bool op1IsInRegisters = true, bool op2IsInRegisters = true); |
| |
| #if CPU(ARM_TRADITIONAL) |
| // sequenceOpCall |
| static const int sequenceOpCallInstructionSpace = 12; |
| static const int sequenceOpCallConstantSpace = 2; |
| // sequenceGetByIdHotPath |
| static const int sequenceGetByIdHotPathInstructionSpace = 36; |
| static const int sequenceGetByIdHotPathConstantSpace = 4; |
| // sequenceGetByIdSlowCase |
| static const int sequenceGetByIdSlowCaseInstructionSpace = 64; |
| static const int sequenceGetByIdSlowCaseConstantSpace = 4; |
| // sequencePutById |
| static const int sequencePutByIdInstructionSpace = 36; |
| static const int sequencePutByIdConstantSpace = 4; |
| #elif CPU(SH4) |
| // sequenceOpCall |
| static const int sequenceOpCallInstructionSpace = 12; |
| static const int sequenceOpCallConstantSpace = 2; |
| // sequenceGetByIdHotPath |
| static const int sequenceGetByIdHotPathInstructionSpace = 36; |
| static const int sequenceGetByIdHotPathConstantSpace = 5; |
| // sequenceGetByIdSlowCase |
| static const int sequenceGetByIdSlowCaseInstructionSpace = 38; |
| static const int sequenceGetByIdSlowCaseConstantSpace = 4; |
| // sequencePutById |
| static const int sequencePutByIdInstructionSpace = 36; |
| static const int sequencePutByIdConstantSpace = 5; |
| #endif |
| |
| #else // USE(JSVALUE32_64) |
| /* This function is deprecated. */ |
| void emitGetJITStubArg(unsigned argumentNumber, RegisterID dst); |
| |
| void emitGetVirtualRegister(int src, RegisterID dst); |
| void emitGetVirtualRegisters(int src1, RegisterID dst1, int src2, RegisterID dst2); |
| void emitPutVirtualRegister(unsigned dst, RegisterID from = regT0); |
| void emitStoreCell(unsigned dst, RegisterID payload, bool /* only used in JSValue32_64 */ = false) |
| { |
| emitPutVirtualRegister(dst, payload); |
| } |
| |
| int32_t getConstantOperandImmediateInt(unsigned src); |
| |
| void killLastResultRegister(); |
| |
| Jump emitJumpIfJSCell(RegisterID); |
| Jump emitJumpIfBothJSCells(RegisterID, RegisterID, RegisterID); |
| void emitJumpSlowCaseIfJSCell(RegisterID); |
| Jump emitJumpIfNotJSCell(RegisterID); |
| void emitJumpSlowCaseIfNotJSCell(RegisterID); |
| void emitJumpSlowCaseIfNotJSCell(RegisterID, int VReg); |
| Jump emitJumpIfImmediateInteger(RegisterID); |
| Jump emitJumpIfNotImmediateInteger(RegisterID); |
| Jump emitJumpIfNotImmediateIntegers(RegisterID, RegisterID, RegisterID); |
| void emitJumpSlowCaseIfNotImmediateInteger(RegisterID); |
| void emitJumpSlowCaseIfNotImmediateNumber(RegisterID); |
| void emitJumpSlowCaseIfNotImmediateIntegers(RegisterID, RegisterID, RegisterID); |
| |
| void emitFastArithReTagImmediate(RegisterID src, RegisterID dest); |
| void emitFastArithIntToImmNoCheck(RegisterID src, RegisterID dest); |
| |
| void emitTagAsBoolImmediate(RegisterID reg); |
| void compileBinaryArithOp(OpcodeID, unsigned dst, unsigned src1, unsigned src2, OperandTypes opi); |
| void compileBinaryArithOpSlowCase(OpcodeID, Vector<SlowCaseEntry>::iterator&, unsigned dst, unsigned src1, unsigned src2, OperandTypes, bool op1HasImmediateIntFastCase, bool op2HasImmediateIntFastCase); |
| |
| void compileGetByIdHotPath(int baseVReg, Identifier*); |
| void compileGetByIdSlowCase(int resultVReg, int baseVReg, Identifier*, Vector<SlowCaseEntry>::iterator&); |
| void compileGetDirectOffset(RegisterID base, RegisterID result, PropertyOffset cachedOffset); |
| void compileGetDirectOffset(JSObject* base, RegisterID result, PropertyOffset cachedOffset); |
| void compileGetDirectOffset(RegisterID base, RegisterID result, RegisterID offset, RegisterID scratch, FinalObjectMode = MayBeFinal); |
| void compilePutDirectOffset(RegisterID base, RegisterID value, PropertyOffset cachedOffset); |
| |
| #endif // USE(JSVALUE32_64) |
| |
| #if (defined(ASSEMBLER_HAS_CONSTANT_POOL) && ASSEMBLER_HAS_CONSTANT_POOL) |
| #define BEGIN_UNINTERRUPTED_SEQUENCE(name) do { beginUninterruptedSequence(name ## InstructionSpace, name ## ConstantSpace); } while (false) |
| #define END_UNINTERRUPTED_SEQUENCE_FOR_PUT(name, dst) do { endUninterruptedSequence(name ## InstructionSpace, name ## ConstantSpace, dst); } while (false) |
| #define END_UNINTERRUPTED_SEQUENCE(name) END_UNINTERRUPTED_SEQUENCE_FOR_PUT(name, 0) |
| |
| void beginUninterruptedSequence(int, int); |
| void endUninterruptedSequence(int, int, int); |
| |
| #else |
| #define BEGIN_UNINTERRUPTED_SEQUENCE(name) |
| #define END_UNINTERRUPTED_SEQUENCE(name) |
| #define END_UNINTERRUPTED_SEQUENCE_FOR_PUT(name, dst) |
| #endif |
| |
| void emit_compareAndJump(OpcodeID, unsigned op1, unsigned op2, unsigned target, RelationalCondition); |
| void emit_compareAndJumpSlow(unsigned op1, unsigned op2, unsigned target, DoubleCondition, int (JIT_STUB *stub)(STUB_ARGS_DECLARATION), bool invert, Vector<SlowCaseEntry>::iterator&); |
| |
| void emit_op_add(Instruction*); |
| void emit_op_bitand(Instruction*); |
| void emit_op_bitor(Instruction*); |
| void emit_op_bitxor(Instruction*); |
| void emit_op_call(Instruction*); |
| void emit_op_call_eval(Instruction*); |
| void emit_op_call_varargs(Instruction*); |
| void emit_op_call_put_result(Instruction*); |
| void emit_op_catch(Instruction*); |
| void emit_op_construct(Instruction*); |
| void emit_op_get_callee(Instruction*); |
| void emit_op_create_this(Instruction*); |
| void emit_op_convert_this(Instruction*); |
| void emit_op_create_arguments(Instruction*); |
| void emit_op_debug(Instruction*); |
| void emit_op_del_by_id(Instruction*); |
| void emit_op_div(Instruction*); |
| void emit_op_end(Instruction*); |
| void emit_op_enter(Instruction*); |
| void emit_op_create_activation(Instruction*); |
| void emit_op_eq(Instruction*); |
| void emit_op_eq_null(Instruction*); |
| void emit_op_get_by_id(Instruction*); |
| void emit_op_get_arguments_length(Instruction*); |
| void emit_op_get_by_val(Instruction*); |
| void emit_op_get_argument_by_val(Instruction*); |
| void emit_op_get_by_pname(Instruction*); |
| void emit_op_init_lazy_reg(Instruction*); |
| void emit_op_check_has_instance(Instruction*); |
| void emit_op_instanceof(Instruction*); |
| void emit_op_is_undefined(Instruction*); |
| void emit_op_is_boolean(Instruction*); |
| void emit_op_is_number(Instruction*); |
| void emit_op_is_string(Instruction*); |
| void emit_op_jeq_null(Instruction*); |
| void emit_op_jfalse(Instruction*); |
| void emit_op_jmp(Instruction*); |
| void emit_op_jmp_scopes(Instruction*); |
| void emit_op_jneq_null(Instruction*); |
| void emit_op_jneq_ptr(Instruction*); |
| void emit_op_jless(Instruction*); |
| void emit_op_jlesseq(Instruction*); |
| void emit_op_jgreater(Instruction*); |
| void emit_op_jgreatereq(Instruction*); |
| void emit_op_jnless(Instruction*); |
| void emit_op_jnlesseq(Instruction*); |
| void emit_op_jngreater(Instruction*); |
| void emit_op_jngreatereq(Instruction*); |
| void emit_op_jtrue(Instruction*); |
| void emit_op_loop(Instruction*); |
| void emit_op_loop_hint(Instruction*); |
| void emit_op_loop_if_less(Instruction*); |
| void emit_op_loop_if_lesseq(Instruction*); |
| void emit_op_loop_if_greater(Instruction*); |
| void emit_op_loop_if_greatereq(Instruction*); |
| void emit_op_loop_if_true(Instruction*); |
| void emit_op_loop_if_false(Instruction*); |
| void emit_op_lshift(Instruction*); |
| void emit_op_mod(Instruction*); |
| void emit_op_mov(Instruction*); |
| void emit_op_mul(Instruction*); |
| void emit_op_negate(Instruction*); |
| void emit_op_neq(Instruction*); |
| void emit_op_neq_null(Instruction*); |
| void emit_op_new_array(Instruction*); |
| void emit_op_new_array_with_size(Instruction*); |
| void emit_op_new_array_buffer(Instruction*); |
| void emit_op_new_func(Instruction*); |
| void emit_op_new_func_exp(Instruction*); |
| void emit_op_new_object(Instruction*); |
| void emit_op_new_regexp(Instruction*); |
| void emit_op_get_pnames(Instruction*); |
| void emit_op_next_pname(Instruction*); |
| void emit_op_not(Instruction*); |
| void emit_op_nstricteq(Instruction*); |
| void emit_op_pop_scope(Instruction*); |
| void emit_op_post_dec(Instruction*); |
| void emit_op_post_inc(Instruction*); |
| void emit_op_pre_dec(Instruction*); |
| void emit_op_pre_inc(Instruction*); |
| void emit_op_profile_did_call(Instruction*); |
| void emit_op_profile_will_call(Instruction*); |
| void emit_op_push_name_scope(Instruction*); |
| void emit_op_push_with_scope(Instruction*); |
| void emit_op_put_by_id(Instruction*); |
| void emit_op_put_by_index(Instruction*); |
| void emit_op_put_by_val(Instruction*); |
| void emit_op_put_getter_setter(Instruction*); |
| void emit_op_init_global_const(Instruction*); |
| void emit_op_init_global_const_check(Instruction*); |
| void emit_resolve_operations(ResolveOperations*, const int* base, const int* value); |
| void emitSlow_link_resolve_operations(ResolveOperations*, Vector<SlowCaseEntry>::iterator&); |
| void emit_op_resolve(Instruction*); |
| void emit_op_resolve_base(Instruction*); |
| void emit_op_ensure_property_exists(Instruction*); |
| void emit_op_resolve_with_base(Instruction*); |
| void emit_op_resolve_with_this(Instruction*); |
| void emit_op_put_to_base(Instruction*); |
| void emit_op_ret(Instruction*); |
| void emit_op_ret_object_or_this(Instruction*); |
| void emit_op_rshift(Instruction*); |
| void emit_op_strcat(Instruction*); |
| void emit_op_stricteq(Instruction*); |
| void emit_op_sub(Instruction*); |
| void emit_op_switch_char(Instruction*); |
| void emit_op_switch_imm(Instruction*); |
| void emit_op_switch_string(Instruction*); |
| void emit_op_tear_off_activation(Instruction*); |
| void emit_op_tear_off_arguments(Instruction*); |
| void emit_op_throw(Instruction*); |
| void emit_op_throw_static_error(Instruction*); |
| void emit_op_to_jsnumber(Instruction*); |
| void emit_op_to_primitive(Instruction*); |
| void emit_op_unexpected_load(Instruction*); |
| void emit_op_urshift(Instruction*); |
| |
| void emitSlow_op_add(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_bitand(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_bitor(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_bitxor(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_call(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_call_eval(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_call_varargs(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_construct(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_convert_this(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_create_this(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_div(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_eq(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_get_by_id(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_get_arguments_length(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_get_by_val(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_get_argument_by_val(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_get_by_pname(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_check_has_instance(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_instanceof(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_jfalse(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_jless(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_jlesseq(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_jgreater(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_jgreatereq(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_jnless(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_jnlesseq(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_jngreater(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_jngreatereq(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_jtrue(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_loop_if_less(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_loop_if_lesseq(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_loop_if_greater(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_loop_if_greatereq(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_loop_if_true(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_loop_if_false(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_lshift(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_mod(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_mul(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_negate(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_neq(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_new_object(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_not(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_nstricteq(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_post_dec(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_post_inc(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_pre_dec(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_pre_inc(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_put_by_id(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_put_by_val(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_init_global_const_check(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_rshift(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_stricteq(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_sub(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_to_jsnumber(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_to_primitive(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_urshift(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| |
| void emitSlow_op_resolve(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_resolve_base(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_resolve_with_base(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_resolve_with_this(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| void emitSlow_op_put_to_base(Instruction*, Vector<SlowCaseEntry>::iterator&); |
| |
| void emitRightShift(Instruction*, bool isUnsigned); |
| void emitRightShiftSlowCase(Instruction*, Vector<SlowCaseEntry>::iterator&, bool isUnsigned); |
| |
| void emitInitRegister(unsigned dst); |
| |
| void emitPutToCallFrameHeader(RegisterID from, JSStack::CallFrameHeaderEntry); |
| void emitPutCellToCallFrameHeader(RegisterID from, JSStack::CallFrameHeaderEntry); |
| void emitPutIntToCallFrameHeader(RegisterID from, JSStack::CallFrameHeaderEntry); |
| void emitPutImmediateToCallFrameHeader(void* value, JSStack::CallFrameHeaderEntry); |
| void emitGetFromCallFrameHeaderPtr(JSStack::CallFrameHeaderEntry, RegisterID to, RegisterID from = callFrameRegister); |
| void emitGetFromCallFrameHeader32(JSStack::CallFrameHeaderEntry, RegisterID to, RegisterID from = callFrameRegister); |
| #if USE(JSVALUE64) |
| void emitGetFromCallFrameHeader64(JSStack::CallFrameHeaderEntry, RegisterID to, RegisterID from = callFrameRegister); |
| #endif |
| |
| JSValue getConstantOperand(unsigned src); |
| bool isOperandConstantImmediateInt(unsigned src); |
| bool isOperandConstantImmediateChar(unsigned src); |
| |
| bool atJumpTarget(); |
| |
| Jump getSlowCase(Vector<SlowCaseEntry>::iterator& iter) |
| { |
| return iter++->from; |
| } |
| void linkSlowCase(Vector<SlowCaseEntry>::iterator& iter) |
| { |
| iter->from.link(this); |
| ++iter; |
| } |
| void linkDummySlowCase(Vector<SlowCaseEntry>::iterator& iter) |
| { |
| ASSERT(!iter->from.isSet()); |
| ++iter; |
| } |
| void linkSlowCaseIfNotJSCell(Vector<SlowCaseEntry>::iterator&, int virtualRegisterIndex); |
| |
| Jump checkStructure(RegisterID reg, Structure* structure); |
| |
| void restoreArgumentReference(); |
| void restoreArgumentReferenceForTrampoline(); |
| void updateTopCallFrame(); |
| |
| Call emitNakedCall(CodePtr function = CodePtr()); |
| |
| void preserveReturnAddressAfterCall(RegisterID); |
| void restoreReturnAddressBeforeReturn(RegisterID); |
| void restoreReturnAddressBeforeReturn(Address); |
| |
| // Loads the character value of a single character string into dst. |
| void emitLoadCharacterString(RegisterID src, RegisterID dst, JumpList& failures); |
| |
| enum OptimizationCheckKind { LoopOptimizationCheck, EnterOptimizationCheck }; |
| #if ENABLE(DFG_JIT) |
| void emitOptimizationCheck(OptimizationCheckKind); |
| #else |
| void emitOptimizationCheck(OptimizationCheckKind) { } |
| #endif |
| |
| void emitTimeoutCheck(); |
| #ifndef NDEBUG |
| void printBytecodeOperandTypes(unsigned src1, unsigned src2); |
| #endif |
| |
| #if ENABLE(SAMPLING_FLAGS) |
| void setSamplingFlag(int32_t); |
| void clearSamplingFlag(int32_t); |
| #endif |
| |
| #if ENABLE(SAMPLING_COUNTERS) |
| void emitCount(AbstractSamplingCounter&, int32_t = 1); |
| #endif |
| |
| #if ENABLE(OPCODE_SAMPLING) |
| void sampleInstruction(Instruction*, bool = false); |
| #endif |
| |
| #if ENABLE(CODEBLOCK_SAMPLING) |
| void sampleCodeBlock(CodeBlock*); |
| #else |
| void sampleCodeBlock(CodeBlock*) {} |
| #endif |
| |
| #if ENABLE(DFG_JIT) |
| bool canBeOptimized() { return m_canBeOptimized; } |
| bool shouldEmitProfiling() { return m_shouldEmitProfiling; } |
| #else |
| bool canBeOptimized() { return false; } |
| // Enables use of value profiler with tiered compilation turned off, |
| // in which case all code gets profiled. |
| bool shouldEmitProfiling() { return true; } |
| #endif |
| |
| Interpreter* m_interpreter; |
| JSGlobalData* m_globalData; |
| CodeBlock* m_codeBlock; |
| |
| Vector<CallRecord> m_calls; |
| Vector<Label> m_labels; |
| Vector<PropertyStubCompilationInfo> m_propertyAccessCompilationInfo; |
| Vector<ByValCompilationInfo> m_byValCompilationInfo; |
| Vector<StructureStubCompilationInfo> m_callStructureStubCompilationInfo; |
| Vector<JumpTable> m_jmpTable; |
| |
| unsigned m_bytecodeOffset; |
| Vector<SlowCaseEntry> m_slowCases; |
| Vector<SwitchRecord> m_switches; |
| |
| unsigned m_propertyAccessInstructionIndex; |
| unsigned m_byValInstructionIndex; |
| unsigned m_globalResolveInfoIndex; |
| unsigned m_callLinkInfoIndex; |
| |
| #if USE(JSVALUE32_64) |
| unsigned m_jumpTargetIndex; |
| unsigned m_mappedBytecodeOffset; |
| int m_mappedVirtualRegisterIndex; |
| RegisterID m_mappedTag; |
| RegisterID m_mappedPayload; |
| #else |
| int m_lastResultBytecodeRegister; |
| #endif |
| unsigned m_jumpTargetsPosition; |
| |
| #ifndef NDEBUG |
| #if defined(ASSEMBLER_HAS_CONSTANT_POOL) && ASSEMBLER_HAS_CONSTANT_POOL |
| Label m_uninterruptedInstructionSequenceBegin; |
| int m_uninterruptedConstantSequenceBegin; |
| #endif |
| #endif |
| OwnPtr<JITDisassembler> m_disassembler; |
| RefPtr<Profiler::Compilation> m_compilation; |
| WeakRandom m_randomGenerator; |
| static CodeRef stringGetByValStubGenerator(JSGlobalData*); |
| |
| #if ENABLE(VALUE_PROFILER) |
| bool m_canBeOptimized; |
| bool m_shouldEmitProfiling; |
| #endif |
| } JIT_CLASS_ALIGNMENT; |
| |
| inline void JIT::emit_op_loop(Instruction* currentInstruction) |
| { |
| emitTimeoutCheck(); |
| emit_op_jmp(currentInstruction); |
| } |
| |
| inline void JIT::emit_op_loop_hint(Instruction*) |
| { |
| emitOptimizationCheck(LoopOptimizationCheck); |
| } |
| |
| inline void JIT::emit_op_loop_if_true(Instruction* currentInstruction) |
| { |
| emitTimeoutCheck(); |
| emit_op_jtrue(currentInstruction); |
| } |
| |
| inline void JIT::emitSlow_op_loop_if_true(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter) |
| { |
| emitSlow_op_jtrue(currentInstruction, iter); |
| } |
| |
| inline void JIT::emit_op_loop_if_false(Instruction* currentInstruction) |
| { |
| emitTimeoutCheck(); |
| emit_op_jfalse(currentInstruction); |
| } |
| |
| inline void JIT::emitSlow_op_loop_if_false(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter) |
| { |
| emitSlow_op_jfalse(currentInstruction, iter); |
| } |
| |
| inline void JIT::emit_op_loop_if_less(Instruction* currentInstruction) |
| { |
| emitTimeoutCheck(); |
| emit_op_jless(currentInstruction); |
| } |
| |
| inline void JIT::emitSlow_op_loop_if_less(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter) |
| { |
| emitSlow_op_jless(currentInstruction, iter); |
| } |
| |
| inline void JIT::emit_op_loop_if_lesseq(Instruction* currentInstruction) |
| { |
| emitTimeoutCheck(); |
| emit_op_jlesseq(currentInstruction); |
| } |
| |
| inline void JIT::emitSlow_op_loop_if_lesseq(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter) |
| { |
| emitSlow_op_jlesseq(currentInstruction, iter); |
| } |
| |
| inline void JIT::emit_op_loop_if_greater(Instruction* currentInstruction) |
| { |
| emitTimeoutCheck(); |
| emit_op_jgreater(currentInstruction); |
| } |
| |
| inline void JIT::emitSlow_op_loop_if_greater(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter) |
| { |
| emitSlow_op_jgreater(currentInstruction, iter); |
| } |
| |
| inline void JIT::emit_op_loop_if_greatereq(Instruction* currentInstruction) |
| { |
| emitTimeoutCheck(); |
| emit_op_jgreatereq(currentInstruction); |
| } |
| |
| inline void JIT::emitSlow_op_loop_if_greatereq(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter) |
| { |
| emitSlow_op_jgreatereq(currentInstruction, iter); |
| } |
| |
| } // namespace JSC |
| |
| #endif // ENABLE(JIT) |
| |
| #endif // JIT_h |
