|  | /* | 
|  | * Copyright (C) 2008, 2012-2016 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. | 
|  | */ | 
|  |  | 
|  | #pragma once | 
|  |  | 
|  | #if ENABLE(JIT) | 
|  |  | 
|  | // 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_OR_CLANG) | 
|  | #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 "JITDisassembler.h" | 
|  | #include "JITInlineCacheGenerator.h" | 
|  | #include "JITMathIC.h" | 
|  | #include "JSInterfaceJIT.h" | 
|  | #include "PCToCodeOriginMap.h" | 
|  | #include "UnusedPointer.h" | 
|  |  | 
|  | namespace JSC { | 
|  |  | 
|  | enum OpcodeID : unsigned; | 
|  |  | 
|  | class ArrayAllocationProfile; | 
|  | class CallLinkInfo; | 
|  | class CodeBlock; | 
|  | class FunctionExecutable; | 
|  | class JIT; | 
|  | class Identifier; | 
|  | class Interpreter; | 
|  | class MarkedAllocator; | 
|  | class Register; | 
|  | class StructureChain; | 
|  | class StructureStubInfo; | 
|  |  | 
|  | struct Instruction; | 
|  | struct OperandTypes; | 
|  | struct SimpleJumpTable; | 
|  | struct StringJumpTable; | 
|  |  | 
|  | 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; | 
|  |  | 
|  | SlowCaseEntry(MacroAssembler::Jump f, unsigned t) | 
|  | : from(f) | 
|  | , to(t) | 
|  | { | 
|  | } | 
|  | }; | 
|  |  | 
|  | 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; | 
|  | } | 
|  | }; | 
|  |  | 
|  | struct ByValCompilationInfo { | 
|  | ByValCompilationInfo() { } | 
|  |  | 
|  | ByValCompilationInfo(ByValInfo* byValInfo, unsigned bytecodeIndex, MacroAssembler::PatchableJump notIndexJump, MacroAssembler::PatchableJump badTypeJump, JITArrayMode arrayMode, ArrayProfile* arrayProfile, MacroAssembler::Label doneTarget, MacroAssembler::Label nextHotPathTarget) | 
|  | : byValInfo(byValInfo) | 
|  | , bytecodeIndex(bytecodeIndex) | 
|  | , notIndexJump(notIndexJump) | 
|  | , badTypeJump(badTypeJump) | 
|  | , arrayMode(arrayMode) | 
|  | , arrayProfile(arrayProfile) | 
|  | , doneTarget(doneTarget) | 
|  | , nextHotPathTarget(nextHotPathTarget) | 
|  | { | 
|  | } | 
|  |  | 
|  | ByValInfo* byValInfo; | 
|  | unsigned bytecodeIndex; | 
|  | MacroAssembler::PatchableJump notIndexJump; | 
|  | MacroAssembler::PatchableJump badTypeJump; | 
|  | JITArrayMode arrayMode; | 
|  | ArrayProfile* arrayProfile; | 
|  | MacroAssembler::Label doneTarget; | 
|  | MacroAssembler::Label nextHotPathTarget; | 
|  | MacroAssembler::Label slowPathTarget; | 
|  | MacroAssembler::Call returnAddress; | 
|  | }; | 
|  |  | 
|  | struct CallCompilationInfo { | 
|  | MacroAssembler::DataLabelPtr hotPathBegin; | 
|  | MacroAssembler::Call hotPathOther; | 
|  | MacroAssembler::Call callReturnLocation; | 
|  | CallLinkInfo* callLinkInfo; | 
|  | }; | 
|  |  | 
|  | void ctiPatchCallByReturnAddress(ReturnAddressPtr, FunctionPtr newCalleeFunction); | 
|  |  | 
|  | class JIT : private JSInterfaceJIT { | 
|  | friend class JITSlowPathCall; | 
|  | friend class JITStubCall; | 
|  |  | 
|  | using MacroAssembler::Jump; | 
|  | using MacroAssembler::JumpList; | 
|  | using MacroAssembler::Label; | 
|  |  | 
|  | static const uintptr_t patchGetByIdDefaultStructure = unusedPointer; | 
|  | 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: | 
|  | JIT(VM*, CodeBlock* = 0); | 
|  | ~JIT(); | 
|  |  | 
|  | void compileWithoutLinking(JITCompilationEffort); | 
|  | CompilationResult link(); | 
|  |  | 
|  | void doMainThreadPreparationBeforeCompile(); | 
|  |  | 
|  | static CompilationResult compile(VM* vm, CodeBlock* codeBlock, JITCompilationEffort effort) | 
|  | { | 
|  | return JIT(vm, codeBlock).privateCompile(effort); | 
|  | } | 
|  |  | 
|  | static void compileGetByVal(VM* vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, JITArrayMode arrayMode) | 
|  | { | 
|  | JIT jit(vm, codeBlock); | 
|  | jit.m_bytecodeOffset = byValInfo->bytecodeIndex; | 
|  | jit.privateCompileGetByVal(byValInfo, returnAddress, arrayMode); | 
|  | } | 
|  |  | 
|  | static void compileGetByValWithCachedId(VM* vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, const Identifier& propertyName) | 
|  | { | 
|  | JIT jit(vm, codeBlock); | 
|  | jit.m_bytecodeOffset = byValInfo->bytecodeIndex; | 
|  | jit.privateCompileGetByValWithCachedId(byValInfo, returnAddress, propertyName); | 
|  | } | 
|  |  | 
|  | static void compilePutByVal(VM* vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, JITArrayMode arrayMode) | 
|  | { | 
|  | JIT jit(vm, codeBlock); | 
|  | jit.m_bytecodeOffset = byValInfo->bytecodeIndex; | 
|  | jit.privateCompilePutByVal(byValInfo, returnAddress, arrayMode); | 
|  | } | 
|  |  | 
|  | static void compileDirectPutByVal(VM* vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, JITArrayMode arrayMode) | 
|  | { | 
|  | JIT jit(vm, codeBlock); | 
|  | jit.m_bytecodeOffset = byValInfo->bytecodeIndex; | 
|  | jit.privateCompilePutByVal(byValInfo, returnAddress, arrayMode); | 
|  | } | 
|  |  | 
|  | static void compilePutByValWithCachedId(VM* vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, PutKind putKind, const Identifier& propertyName) | 
|  | { | 
|  | JIT jit(vm, codeBlock); | 
|  | jit.m_bytecodeOffset = byValInfo->bytecodeIndex; | 
|  | jit.privateCompilePutByValWithCachedId(byValInfo, returnAddress, putKind, propertyName); | 
|  | } | 
|  |  | 
|  | static void compileHasIndexedProperty(VM* vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, JITArrayMode arrayMode) | 
|  | { | 
|  | JIT jit(vm, codeBlock); | 
|  | jit.m_bytecodeOffset = byValInfo->bytecodeIndex; | 
|  | jit.privateCompileHasIndexedProperty(byValInfo, returnAddress, arrayMode); | 
|  | } | 
|  |  | 
|  | static CodeRef compileCTINativeCall(VM*, NativeFunction); | 
|  |  | 
|  | static unsigned frameRegisterCountFor(CodeBlock*); | 
|  | static int stackPointerOffsetFor(CodeBlock*); | 
|  |  | 
|  | JS_EXPORT_PRIVATE static HashMap<CString, double> compileTimeStats(); | 
|  |  | 
|  | private: | 
|  | void privateCompileMainPass(); | 
|  | void privateCompileLinkPass(); | 
|  | void privateCompileSlowCases(); | 
|  | CompilationResult privateCompile(JITCompilationEffort); | 
|  |  | 
|  | void privateCompileGetByVal(ByValInfo*, ReturnAddressPtr, JITArrayMode); | 
|  | void privateCompileGetByValWithCachedId(ByValInfo*, ReturnAddressPtr, const Identifier&); | 
|  | void privateCompilePutByVal(ByValInfo*, ReturnAddressPtr, JITArrayMode); | 
|  | void privateCompilePutByValWithCachedId(ByValInfo*, ReturnAddressPtr, PutKind, const Identifier&); | 
|  |  | 
|  | void privateCompileHasIndexedProperty(ByValInfo*, ReturnAddressPtr, JITArrayMode); | 
|  |  | 
|  | Label privateCompileCTINativeCall(VM*, bool isConstruct = false); | 
|  | CodeRef privateCompileCTINativeCall(VM*, NativeFunction); | 
|  | void privateCompilePatchGetArrayLength(ReturnAddressPtr returnAddress); | 
|  |  | 
|  | // Add a call out from JIT code, without an exception check. | 
|  | Call appendCall(const FunctionPtr& function) | 
|  | { | 
|  | Call functionCall = call(); | 
|  | m_calls.append(CallRecord(functionCall, m_bytecodeOffset, function.value())); | 
|  | return functionCall; | 
|  | } | 
|  |  | 
|  | #if OS(WINDOWS) && CPU(X86_64) | 
|  | Call appendCallWithSlowPathReturnType(const FunctionPtr& function) | 
|  | { | 
|  | Call functionCall = callWithSlowPathReturnType(); | 
|  | m_calls.append(CallRecord(functionCall, m_bytecodeOffset, function.value())); | 
|  | return functionCall; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | void exceptionCheck(Jump jumpToHandler) | 
|  | { | 
|  | m_exceptionChecks.append(jumpToHandler); | 
|  | } | 
|  |  | 
|  | void exceptionCheck() | 
|  | { | 
|  | m_exceptionChecks.append(emitExceptionCheck()); | 
|  | } | 
|  |  | 
|  | void exceptionCheckWithCallFrameRollback() | 
|  | { | 
|  | m_exceptionChecksWithCallFrameRollback.append(emitExceptionCheck()); | 
|  | } | 
|  |  | 
|  | void privateCompileExceptionHandlers(); | 
|  |  | 
|  | void addSlowCase(Jump); | 
|  | void addSlowCase(const 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 compileSetupVarargsFrame(OpcodeID, Instruction*, CallLinkInfo*); | 
|  | void compileCallEval(Instruction*); | 
|  | void compileCallEvalSlowCase(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitPutCallResult(Instruction*); | 
|  |  | 
|  | enum CompileOpStrictEqType { OpStrictEq, OpNStrictEq }; | 
|  | void compileOpStrictEq(Instruction* instruction, CompileOpStrictEqType type); | 
|  | bool isOperandConstantDouble(int src); | 
|  |  | 
|  | void emitLoadDouble(int index, FPRegisterID value); | 
|  | void emitLoadInt32ToDouble(int index, FPRegisterID value); | 
|  | Jump emitJumpIfCellObject(RegisterID cellReg); | 
|  | Jump emitJumpIfCellNotObject(RegisterID cellReg); | 
|  |  | 
|  | enum WriteBarrierMode { UnconditionalWriteBarrier, ShouldFilterBase, ShouldFilterValue, ShouldFilterBaseAndValue }; | 
|  | // 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(unsigned owner, unsigned value, WriteBarrierMode); | 
|  | void emitWriteBarrier(JSCell* owner, unsigned value, WriteBarrierMode); | 
|  | void emitWriteBarrier(JSCell* owner); | 
|  |  | 
|  | // 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(); | 
|  | void emitArrayProfilingSiteWithCell(RegisterID cell, RegisterID indexingType, ArrayProfile*); | 
|  | void emitArrayProfilingSiteForBytecodeIndexWithCell(RegisterID cell, RegisterID indexingType, 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 emitInt32Load(Instruction* instruction, PatchableJump& badType) { return emitContiguousLoad(instruction, badType, Int32Shape); } | 
|  | JumpList emitDoubleLoad(Instruction*, PatchableJump& badType); | 
|  | JumpList emitContiguousLoad(Instruction*, PatchableJump& badType, IndexingType expectedShape = ContiguousShape); | 
|  | JumpList emitArrayStorageLoad(Instruction*, PatchableJump& badType); | 
|  | JumpList emitLoadForArrayMode(Instruction*, JITArrayMode, PatchableJump& badType); | 
|  |  | 
|  | 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 emitDirectArgumentsGetByVal(Instruction*, PatchableJump& badType); | 
|  | JumpList emitScopedArgumentsGetByVal(Instruction*, PatchableJump& badType); | 
|  | JumpList emitIntTypedArrayGetByVal(Instruction*, PatchableJump& badType, TypedArrayType); | 
|  | JumpList emitFloatTypedArrayGetByVal(Instruction*, PatchableJump& badType, TypedArrayType); | 
|  |  | 
|  | // Property is in regT1, 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, TypedArrayType); | 
|  | JumpList emitFloatTypedArrayPutByVal(Instruction*, PatchableJump& badType, TypedArrayType); | 
|  |  | 
|  | // Identifier check helper for GetByVal and PutByVal. | 
|  | void emitByValIdentifierCheck(ByValInfo*, RegisterID cell, RegisterID scratch, const Identifier&, JumpList& slowCases); | 
|  |  | 
|  | JITGetByIdGenerator emitGetByValWithCachedId(ByValInfo*, Instruction*, const Identifier&, Jump& fastDoneCase, Jump& slowDoneCase, JumpList& slowCases); | 
|  | JITPutByIdGenerator emitPutByValWithCachedId(ByValInfo*, Instruction*, PutKind, const Identifier&, JumpList& doneCases, JumpList& slowCases); | 
|  |  | 
|  | enum FinalObjectMode { MayBeFinal, KnownNotFinal }; | 
|  |  | 
|  | void emitGetVirtualRegister(int src, JSValueRegs dst); | 
|  | void emitPutVirtualRegister(int dst, JSValueRegs src); | 
|  |  | 
|  | int32_t getOperandConstantInt(int src); | 
|  | double getOperandConstantDouble(int src); | 
|  |  | 
|  | #if USE(JSVALUE32_64) | 
|  | bool getOperandConstantInt(int op1, int op2, int& 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 emitStoreCell(int index, RegisterID payload, bool indexIsCell = false); | 
|  | void emitStoreBool(int index, RegisterID payload, bool indexIsBool = false); | 
|  | void emitStoreDouble(int index, FPRegisterID value); | 
|  |  | 
|  | void emitJumpSlowCaseIfNotJSCell(int virtualRegisterIndex); | 
|  | void emitJumpSlowCaseIfNotJSCell(int virtualRegisterIndex, RegisterID tag); | 
|  |  | 
|  | void compileGetByIdHotPath(const Identifier*); | 
|  |  | 
|  | // Arithmetic opcode helpers | 
|  | void emitBinaryDoubleOp(OpcodeID, int dst, int op1, int op2, OperandTypes, JumpList& notInt32Op1, JumpList& notInt32Op2, bool op1IsInRegisters = true, bool op2IsInRegisters = true); | 
|  |  | 
|  | #else // USE(JSVALUE32_64) | 
|  | void emitGetVirtualRegister(int src, RegisterID dst); | 
|  | void emitGetVirtualRegister(VirtualRegister src, RegisterID dst); | 
|  | void emitGetVirtualRegisters(int src1, RegisterID dst1, int src2, RegisterID dst2); | 
|  | void emitGetVirtualRegisters(VirtualRegister src1, RegisterID dst1, VirtualRegister src2, RegisterID dst2); | 
|  | void emitPutVirtualRegister(int dst, RegisterID from = regT0); | 
|  | void emitPutVirtualRegister(VirtualRegister dst, RegisterID from = regT0); | 
|  | void emitStoreCell(int dst, RegisterID payload, bool /* only used in JSValue32_64 */ = false) | 
|  | { | 
|  | emitPutVirtualRegister(dst, payload); | 
|  | } | 
|  | void emitStoreCell(VirtualRegister dst, RegisterID payload) | 
|  | { | 
|  | emitPutVirtualRegister(dst, payload); | 
|  | } | 
|  |  | 
|  | Jump emitJumpIfJSCell(RegisterID); | 
|  | Jump emitJumpIfBothJSCells(RegisterID, RegisterID, RegisterID); | 
|  | void emitJumpSlowCaseIfJSCell(RegisterID); | 
|  | void emitJumpSlowCaseIfNotJSCell(RegisterID); | 
|  | void emitJumpSlowCaseIfNotJSCell(RegisterID, int VReg); | 
|  | Jump emitJumpIfInt(RegisterID); | 
|  | Jump emitJumpIfNotInt(RegisterID); | 
|  | Jump emitJumpIfNotInt(RegisterID, RegisterID, RegisterID scratch); | 
|  | PatchableJump emitPatchableJumpIfNotInt(RegisterID); | 
|  | void emitJumpSlowCaseIfNotInt(RegisterID); | 
|  | void emitJumpSlowCaseIfNotNumber(RegisterID); | 
|  | void emitJumpSlowCaseIfNotInt(RegisterID, RegisterID, RegisterID scratch); | 
|  |  | 
|  | void emitTagBool(RegisterID); | 
|  |  | 
|  | void compileGetByIdHotPath(int baseVReg, const Identifier*); | 
|  |  | 
|  | #endif // USE(JSVALUE32_64) | 
|  |  | 
|  | void emit_compareAndJump(OpcodeID, int op1, int op2, unsigned target, RelationalCondition); | 
|  | void emit_compareAndJumpSlow(int op1, int op2, unsigned target, DoubleCondition, size_t (JIT_OPERATION *operation)(ExecState*, EncodedJSValue, EncodedJSValue), bool invert, Vector<SlowCaseEntry>::iterator&); | 
|  |  | 
|  | void assertStackPointerOffset(); | 
|  |  | 
|  | 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_tail_call(Instruction*); | 
|  | void emit_op_call_eval(Instruction*); | 
|  | void emit_op_call_varargs(Instruction*); | 
|  | void emit_op_tail_call_varargs(Instruction*); | 
|  | void emit_op_tail_call_forward_arguments(Instruction*); | 
|  | void emit_op_construct_varargs(Instruction*); | 
|  | void emit_op_catch(Instruction*); | 
|  | void emit_op_construct(Instruction*); | 
|  | void emit_op_create_this(Instruction*); | 
|  | void emit_op_to_this(Instruction*); | 
|  | void emit_op_create_direct_arguments(Instruction*); | 
|  | void emit_op_create_scoped_arguments(Instruction*); | 
|  | void emit_op_create_cloned_arguments(Instruction*); | 
|  | void emit_op_get_argument(Instruction*); | 
|  | void emit_op_argument_count(Instruction*); | 
|  | void emit_op_create_rest(Instruction*); | 
|  | void emit_op_get_rest_length(Instruction*); | 
|  | void emit_op_check_tdz(Instruction*); | 
|  | void emit_op_assert(Instruction*); | 
|  | void emit_op_debug(Instruction*); | 
|  | void emit_op_del_by_id(Instruction*); | 
|  | void emit_op_del_by_val(Instruction*); | 
|  | void emit_op_div(Instruction*); | 
|  | void emit_op_end(Instruction*); | 
|  | void emit_op_enter(Instruction*); | 
|  | void emit_op_get_scope(Instruction*); | 
|  | void emit_op_eq(Instruction*); | 
|  | void emit_op_eq_null(Instruction*); | 
|  | void emit_op_try_get_by_id(Instruction*); | 
|  | void emit_op_get_by_id(Instruction*); | 
|  | void emit_op_get_by_id_with_this(Instruction*); | 
|  | void emit_op_get_by_val_with_this(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_init_lazy_reg(Instruction*); | 
|  | void emit_op_overrides_has_instance(Instruction*); | 
|  | void emit_op_instanceof(Instruction*); | 
|  | void emit_op_instanceof_custom(Instruction*); | 
|  | void emit_op_is_empty(Instruction*); | 
|  | void emit_op_is_undefined(Instruction*); | 
|  | void emit_op_is_boolean(Instruction*); | 
|  | void emit_op_is_number(Instruction*); | 
|  | void emit_op_is_object(Instruction*); | 
|  | void emit_op_is_cell_with_type(Instruction*); | 
|  | void emit_op_jeq_null(Instruction*); | 
|  | void emit_op_jfalse(Instruction*); | 
|  | void emit_op_jmp(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_hint(Instruction*); | 
|  | void emit_op_watchdog(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_array_with_spread(Instruction*); | 
|  | void emit_op_spread(Instruction*); | 
|  | void emit_op_new_func(Instruction*); | 
|  | void emit_op_new_func_exp(Instruction*); | 
|  | void emit_op_new_generator_func(Instruction*); | 
|  | void emit_op_new_generator_func_exp(Instruction*); | 
|  | void emit_op_new_async_func(Instruction*); | 
|  | void emit_op_new_async_func_exp(Instruction*); | 
|  | void emit_op_new_object(Instruction*); | 
|  | void emit_op_new_regexp(Instruction*); | 
|  | void emit_op_not(Instruction*); | 
|  | void emit_op_nstricteq(Instruction*); | 
|  | void emit_op_dec(Instruction*); | 
|  | void emit_op_inc(Instruction*); | 
|  | void emit_op_pow(Instruction*); | 
|  | void emit_op_profile_type(Instruction*); | 
|  | void emit_op_profile_control_flow(Instruction*); | 
|  | void emit_op_push_with_scope(Instruction*); | 
|  | void emit_op_create_lexical_environment(Instruction*); | 
|  | void emit_op_get_parent_scope(Instruction*); | 
|  | void emit_op_put_by_id(Instruction*); | 
|  | void emit_op_put_by_id_with_this(Instruction*); | 
|  | void emit_op_put_by_index(Instruction*); | 
|  | void emit_op_put_by_val(Instruction*); | 
|  | void emit_op_put_by_val_with_this(Instruction*); | 
|  | void emit_op_put_getter_by_id(Instruction*); | 
|  | void emit_op_put_setter_by_id(Instruction*); | 
|  | void emit_op_put_getter_setter_by_id(Instruction*); | 
|  | void emit_op_put_getter_by_val(Instruction*); | 
|  | void emit_op_put_setter_by_val(Instruction*); | 
|  | void emit_op_define_data_property(Instruction*); | 
|  | void emit_op_define_accessor_property(Instruction*); | 
|  | void emit_op_ret(Instruction*); | 
|  | void emit_op_rshift(Instruction*); | 
|  | void emit_op_set_function_name(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_arguments(Instruction*); | 
|  | void emit_op_throw(Instruction*); | 
|  | void emit_op_throw_static_error(Instruction*); | 
|  | void emit_op_to_number(Instruction*); | 
|  | void emit_op_to_string(Instruction*); | 
|  | void emit_op_to_primitive(Instruction*); | 
|  | void emit_op_unexpected_load(Instruction*); | 
|  | void emit_op_unsigned(Instruction*); | 
|  | void emit_op_urshift(Instruction*); | 
|  | void emit_op_get_enumerable_length(Instruction*); | 
|  | void emit_op_has_generic_property(Instruction*); | 
|  | void emit_op_has_structure_property(Instruction*); | 
|  | void emit_op_has_indexed_property(Instruction*); | 
|  | void emit_op_get_direct_pname(Instruction*); | 
|  | void emit_op_get_property_enumerator(Instruction*); | 
|  | void emit_op_enumerator_structure_pname(Instruction*); | 
|  | void emit_op_enumerator_generic_pname(Instruction*); | 
|  | void emit_op_to_index_string(Instruction*); | 
|  | void emit_op_log_shadow_chicken_prologue(Instruction*); | 
|  | void emit_op_log_shadow_chicken_tail(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_tail_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_tail_call_varargs(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_tail_call_forward_arguments(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_construct_varargs(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_construct(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_to_this(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_create_this(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_check_tdz(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_div(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_eq(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_get_callee(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_try_get_by_id(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_instanceof(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_instanceof_custom(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_hint(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_watchdog(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_dec(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_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_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_number(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_to_string(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_to_primitive(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_unsigned(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_urshift(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_has_indexed_property(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_has_structure_property(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_get_direct_pname(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  |  | 
|  | void emit_op_resolve_scope(Instruction*); | 
|  | void emit_op_get_from_scope(Instruction*); | 
|  | void emit_op_put_to_scope(Instruction*); | 
|  | void emit_op_get_from_arguments(Instruction*); | 
|  | void emit_op_put_to_arguments(Instruction*); | 
|  | void emitSlow_op_resolve_scope(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_get_from_scope(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  | void emitSlow_op_put_to_scope(Instruction*, Vector<SlowCaseEntry>::iterator&); | 
|  |  | 
|  | void emitRightShift(Instruction*, bool isUnsigned); | 
|  | void emitRightShiftSlowCase(Instruction*, Vector<SlowCaseEntry>::iterator&, bool isUnsigned); | 
|  |  | 
|  | void emitNewFuncCommon(Instruction*); | 
|  | void emitNewFuncExprCommon(Instruction*); | 
|  | void emitVarInjectionCheck(bool needsVarInjectionChecks); | 
|  | void emitResolveClosure(int dst, int scope, bool needsVarInjectionChecks, unsigned depth); | 
|  | void emitLoadWithStructureCheck(int scope, Structure** structureSlot); | 
|  | #if USE(JSVALUE64) | 
|  | void emitGetVarFromPointer(JSValue* operand, GPRReg); | 
|  | void emitGetVarFromIndirectPointer(JSValue** operand, GPRReg); | 
|  | #else | 
|  | void emitGetVarFromIndirectPointer(JSValue** operand, GPRReg tag, GPRReg payload); | 
|  | void emitGetVarFromPointer(JSValue* operand, GPRReg tag, GPRReg payload); | 
|  | #endif | 
|  | void emitGetClosureVar(int scope, uintptr_t operand); | 
|  | void emitNotifyWrite(WatchpointSet*); | 
|  | void emitNotifyWrite(GPRReg pointerToSet); | 
|  | void emitPutGlobalVariable(JSValue* operand, int value, WatchpointSet*); | 
|  | void emitPutGlobalVariableIndirect(JSValue** addressOfOperand, int value, WatchpointSet**); | 
|  | void emitPutClosureVar(int scope, uintptr_t operand, int value, WatchpointSet*); | 
|  |  | 
|  | void emitInitRegister(int dst); | 
|  |  | 
|  | void emitPutIntToCallFrameHeader(RegisterID from, int entry); | 
|  |  | 
|  | JSValue getConstantOperand(int src); | 
|  | bool isOperandConstantInt(int src); | 
|  | bool isOperandConstantChar(int src); | 
|  |  | 
|  | template <typename Generator, typename ProfiledFunction, typename NonProfiledFunction> | 
|  | void emitMathICFast(JITUnaryMathIC<Generator>*, Instruction*, ProfiledFunction, NonProfiledFunction); | 
|  | template <typename Generator, typename ProfiledFunction, typename NonProfiledFunction> | 
|  | void emitMathICFast(JITBinaryMathIC<Generator>*, Instruction*, ProfiledFunction, NonProfiledFunction); | 
|  |  | 
|  | template <typename Generator, typename ProfiledRepatchFunction, typename ProfiledFunction, typename RepatchFunction> | 
|  | void emitMathICSlow(JITBinaryMathIC<Generator>*, Instruction*, ProfiledRepatchFunction, ProfiledFunction, RepatchFunction); | 
|  | template <typename Generator, typename ProfiledRepatchFunction, typename ProfiledFunction, typename RepatchFunction> | 
|  | void emitMathICSlow(JITUnaryMathIC<Generator>*, Instruction*, ProfiledRepatchFunction, ProfiledFunction, RepatchFunction); | 
|  |  | 
|  | Jump getSlowCase(Vector<SlowCaseEntry>::iterator& iter) | 
|  | { | 
|  | return iter++->from; | 
|  | } | 
|  | void linkSlowCase(Vector<SlowCaseEntry>::iterator& iter) | 
|  | { | 
|  | if (iter->from.isSet()) | 
|  | iter->from.link(this); | 
|  | ++iter; | 
|  | } | 
|  | void linkDummySlowCase(Vector<SlowCaseEntry>::iterator& iter) | 
|  | { | 
|  | ASSERT(!iter->from.isSet()); | 
|  | ++iter; | 
|  | } | 
|  | void linkSlowCaseIfNotJSCell(Vector<SlowCaseEntry>::iterator&, int virtualRegisterIndex); | 
|  | void linkAllSlowCasesForBytecodeOffset(Vector<SlowCaseEntry>& slowCases, | 
|  | Vector<SlowCaseEntry>::iterator&, unsigned bytecodeOffset); | 
|  |  | 
|  | MacroAssembler::Call appendCallWithExceptionCheck(const FunctionPtr&); | 
|  | #if OS(WINDOWS) && CPU(X86_64) | 
|  | MacroAssembler::Call appendCallWithExceptionCheckAndSlowPathReturnType(const FunctionPtr&); | 
|  | #endif | 
|  | MacroAssembler::Call appendCallWithCallFrameRollbackOnException(const FunctionPtr&); | 
|  | MacroAssembler::Call appendCallWithExceptionCheckSetJSValueResult(const FunctionPtr&, int); | 
|  | MacroAssembler::Call appendCallWithExceptionCheckSetJSValueResultWithProfile(const FunctionPtr&, int); | 
|  |  | 
|  | enum WithProfileTag { WithProfile }; | 
|  |  | 
|  | MacroAssembler::Call callOperation(C_JITOperation_E); | 
|  | MacroAssembler::Call callOperation(C_JITOperation_EO, GPRReg); | 
|  | MacroAssembler::Call callOperation(C_JITOperation_EL, GPRReg); | 
|  | MacroAssembler::Call callOperation(C_JITOperation_EL, TrustedImmPtr); | 
|  | MacroAssembler::Call callOperation(C_JITOperation_ESt, Structure*); | 
|  | MacroAssembler::Call callOperation(C_JITOperation_EZ, int32_t); | 
|  | MacroAssembler::Call callOperation(Z_JITOperation_EJZZ, GPRReg, int32_t, int32_t); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_E, int); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EAapJ, int, ArrayAllocationProfile*, GPRReg); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EAapJcpZ, int, ArrayAllocationProfile*, GPRReg, int32_t); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EAapJcpZ, int, ArrayAllocationProfile*, const JSValue*, int32_t); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EC, int, JSCell*); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EC, JSCell*); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJ, int, GPRReg); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJ, JSValueRegs, JSValueRegs); | 
|  | #if USE(JSVALUE64) | 
|  | MacroAssembler::Call callOperation(J_JITOperation_ESsiJI, int, StructureStubInfo*, GPRReg, UniquedStringImpl*); | 
|  | MacroAssembler::Call callOperation(WithProfileTag, J_JITOperation_ESsiJI, int, StructureStubInfo*, GPRReg, UniquedStringImpl*); | 
|  | #else | 
|  | MacroAssembler::Call callOperation(J_JITOperation_ESsiJI, int, StructureStubInfo*, GPRReg, GPRReg, UniquedStringImpl*); | 
|  | MacroAssembler::Call callOperation(WithProfileTag, J_JITOperation_ESsiJI, int, StructureStubInfo*, GPRReg, GPRReg, UniquedStringImpl*); | 
|  | #endif | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJI, int, GPRReg, UniquedStringImpl*); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJJ, int, GPRReg, GPRReg); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJArp, JSValueRegs, JSValueRegs, ArithProfile*); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJJArp, JSValueRegs, JSValueRegs, JSValueRegs, ArithProfile*); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJJ, JSValueRegs, JSValueRegs, JSValueRegs); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJMic, JSValueRegs, JSValueRegs, TrustedImmPtr); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJJMic, JSValueRegs, JSValueRegs, JSValueRegs, TrustedImmPtr); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJJAp, int, GPRReg, GPRReg, ArrayProfile*); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJJBy, int, GPRReg, GPRReg, ByValInfo*); | 
|  | MacroAssembler::Call callOperation(Z_JITOperation_EJOJ, GPRReg, GPRReg, GPRReg); | 
|  | MacroAssembler::Call callOperation(C_JITOperation_EJsc, GPRReg); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJscC, int, GPRReg, JSCell*); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJscCJ, int, GPRReg, JSCell*, GPRReg); | 
|  | MacroAssembler::Call callOperation(C_JITOperation_EJscZ, GPRReg, int32_t); | 
|  | MacroAssembler::Call callOperation(C_JITOperation_EJscZ, int, GPRReg, int32_t); | 
|  | #if USE(JSVALUE64) | 
|  | MacroAssembler::Call callOperation(WithProfileTag, J_JITOperation_EJJ, int, GPRReg, GPRReg); | 
|  | #else | 
|  | MacroAssembler::Call callOperation(WithProfileTag, J_JITOperation_EJJ, int, GPRReg, GPRReg, GPRReg, GPRReg); | 
|  | #endif | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EP, int, void*); | 
|  | MacroAssembler::Call callOperation(WithProfileTag, J_JITOperation_EPc, int, Instruction*); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EPc, int, Instruction*); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EZ, int, int32_t); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EZZ, int, int32_t, int32_t); | 
|  | MacroAssembler::Call callOperation(P_JITOperation_E); | 
|  | MacroAssembler::Call callOperation(P_JITOperation_EJS, GPRReg, size_t); | 
|  | MacroAssembler::Call callOperation(S_JITOperation_ECC, RegisterID, RegisterID); | 
|  | MacroAssembler::Call callOperation(S_JITOperation_EJ, RegisterID); | 
|  | MacroAssembler::Call callOperation(S_JITOperation_EJI, GPRReg, UniquedStringImpl*); | 
|  | MacroAssembler::Call callOperation(S_JITOperation_EJJ, RegisterID, RegisterID); | 
|  | MacroAssembler::Call callOperation(S_JITOperation_EOJss, RegisterID, RegisterID); | 
|  | MacroAssembler::Call callOperation(Sprt_JITOperation_EZ, int32_t); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_E); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EC, RegisterID); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_ECC, RegisterID, RegisterID); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_ECIZC, RegisterID, UniquedStringImpl*, int32_t, RegisterID); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_ECIZCC, RegisterID, UniquedStringImpl*, int32_t, RegisterID, RegisterID); | 
|  | #if USE(JSVALUE64) | 
|  | MacroAssembler::Call callOperation(V_JITOperation_ECJZC, RegisterID, RegisterID, int32_t, RegisterID); | 
|  | #else | 
|  | MacroAssembler::Call callOperation(V_JITOperation_ECJZC, RegisterID, RegisterID, RegisterID, int32_t, RegisterID); | 
|  | #endif | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EE, RegisterID); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EZSymtabJ, int, SymbolTable*, RegisterID); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EZSymtabJ, int, SymbolTable*, RegisterID); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EJ, RegisterID); | 
|  | MacroAssembler::Call callOperationNoExceptionCheck(Z_JITOperation_E); | 
|  | #if USE(JSVALUE64) | 
|  | MacroAssembler::Call callOperationNoExceptionCheck(V_JITOperation_EJ, RegisterID); | 
|  | #else | 
|  | MacroAssembler::Call callOperationNoExceptionCheck(V_JITOperation_EJ, RegisterID, RegisterID); | 
|  | #endif | 
|  | #if USE(JSVALUE64) | 
|  | MacroAssembler::Call callOperation(F_JITOperation_EFJZZ, RegisterID, RegisterID, int32_t, RegisterID); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_ESsiJJI, StructureStubInfo*, RegisterID, RegisterID, UniquedStringImpl*); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_ECIZJJ, RegisterID, UniquedStringImpl*, int32_t, RegisterID, RegisterID); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_ECJ, RegisterID, RegisterID); | 
|  | #else | 
|  | MacroAssembler::Call callOperation(V_JITOperation_ESsiJJI, StructureStubInfo*, RegisterID, RegisterID, RegisterID, RegisterID, UniquedStringImpl*); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_ECJ, RegisterID, RegisterID, RegisterID); | 
|  | #endif | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EJJJ, RegisterID, RegisterID, RegisterID); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EJJJAp, RegisterID, RegisterID, RegisterID, ArrayProfile*); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EJJJBy, RegisterID, RegisterID, RegisterID, ByValInfo*); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EJZJ, RegisterID, int32_t, RegisterID); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EJZ, RegisterID, int32_t); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EPc, Instruction*); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EZ, int32_t); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EZJ, int, GPRReg); | 
|  | MacroAssembler::Call callOperationWithCallFrameRollbackOnException(J_JITOperation_E); | 
|  | MacroAssembler::Call callOperationWithCallFrameRollbackOnException(V_JITOperation_ECb, CodeBlock*); | 
|  | MacroAssembler::Call callOperationWithCallFrameRollbackOnException(Z_JITOperation_E); | 
|  | #if USE(JSVALUE32_64) | 
|  | MacroAssembler::Call callOperation(F_JITOperation_EFJZZ, RegisterID, RegisterID, RegisterID, int32_t, RegisterID); | 
|  | MacroAssembler::Call callOperation(Z_JITOperation_EJZZ, GPRReg, GPRReg, int32_t, int32_t); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EAapJ, int, ArrayAllocationProfile*, GPRReg, GPRReg); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJ, int, GPRReg, GPRReg); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJI, int, GPRReg, GPRReg, UniquedStringImpl*); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJJ, int, GPRReg, GPRReg, GPRReg, GPRReg); | 
|  | MacroAssembler::Call callOperation(Z_JITOperation_EJOJ, GPRReg, GPRReg, GPRReg, GPRReg, GPRReg); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJJAp, int, GPRReg, GPRReg, GPRReg, GPRReg, ArrayProfile*); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJJBy, int, GPRReg, GPRReg, GPRReg, GPRReg, ByValInfo*); | 
|  | MacroAssembler::Call callOperation(P_JITOperation_EJS, GPRReg, GPRReg, size_t); | 
|  | MacroAssembler::Call callOperation(S_JITOperation_EJ, RegisterID, RegisterID); | 
|  | MacroAssembler::Call callOperation(S_JITOperation_EJI, GPRReg, GPRReg, UniquedStringImpl*); | 
|  | MacroAssembler::Call callOperation(S_JITOperation_EJJ, RegisterID, RegisterID, RegisterID, RegisterID); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EZSymtabJ, int, SymbolTable*, RegisterID, RegisterID); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EJ, RegisterID, RegisterID); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EJJJ, RegisterID, RegisterID, RegisterID, RegisterID, RegisterID, RegisterID); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EJJJAp, RegisterID, RegisterID, RegisterID, RegisterID, RegisterID, RegisterID, ArrayProfile*); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EJJJBy, RegisterID, RegisterID, RegisterID, RegisterID, RegisterID, RegisterID, ByValInfo*); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EJZ, RegisterID, RegisterID, int32_t); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EJZJ, RegisterID, RegisterID, int32_t, RegisterID, RegisterID); | 
|  | MacroAssembler::Call callOperation(V_JITOperation_EZJ, int32_t, RegisterID, RegisterID); | 
|  | MacroAssembler::Call callOperation(J_JITOperation_EJscCJ, int, GPRReg, JSCell*, GPRReg, GPRReg); | 
|  | #endif | 
|  |  | 
|  | template<typename SnippetGenerator> | 
|  | void emitBitBinaryOpFastPath(Instruction* currentInstruction); | 
|  |  | 
|  | void emitRightShiftFastPath(Instruction* currentInstruction, OpcodeID); | 
|  |  | 
|  | Jump checkStructure(RegisterID reg, Structure* structure); | 
|  |  | 
|  | void updateTopCallFrame(); | 
|  |  | 
|  | Call emitNakedCall(CodePtr function = CodePtr()); | 
|  | Call emitNakedTailCall(CodePtr function = CodePtr()); | 
|  |  | 
|  | // Loads the character value of a single character string into dst. | 
|  | void emitLoadCharacterString(RegisterID src, RegisterID dst, JumpList& failures); | 
|  |  | 
|  | #if ENABLE(DFG_JIT) | 
|  | void emitEnterOptimizationCheck(); | 
|  | #else | 
|  | void emitEnterOptimizationCheck() { } | 
|  | #endif | 
|  |  | 
|  | #ifndef NDEBUG | 
|  | void printBytecodeOperandTypes(int src1, int 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 canBeOptimizedOrInlined() { return m_canBeOptimizedOrInlined; } | 
|  | bool shouldEmitProfiling() { return m_shouldEmitProfiling; } | 
|  | #else | 
|  | bool canBeOptimized() { return false; } | 
|  | bool canBeOptimizedOrInlined() { return false; } | 
|  | // Enables use of value profiler with tiered compilation turned off, | 
|  | // in which case all code gets profiled. | 
|  | bool shouldEmitProfiling() { return false; } | 
|  | #endif | 
|  |  | 
|  | static bool reportCompileTimes(); | 
|  | static bool computeCompileTimes(); | 
|  |  | 
|  | // If you need to check the value of an instruction multiple times and the instruction is | 
|  | // part of a LLInt inline cache, then you want to use this. It will give you the value of | 
|  | // the instruction at the start of JITing. | 
|  | Instruction* copiedInstruction(Instruction*); | 
|  |  | 
|  | Interpreter* m_interpreter; | 
|  |  | 
|  | RefCountedArray<Instruction> m_instructions; | 
|  |  | 
|  | Vector<CallRecord> m_calls; | 
|  | Vector<Label> m_labels; | 
|  | Vector<JITGetByIdGenerator> m_getByIds; | 
|  | Vector<JITPutByIdGenerator> m_putByIds; | 
|  | Vector<ByValCompilationInfo> m_byValCompilationInfo; | 
|  | Vector<CallCompilationInfo> m_callCompilationInfo; | 
|  | Vector<JumpTable> m_jmpTable; | 
|  |  | 
|  | unsigned m_bytecodeOffset; | 
|  | Vector<SlowCaseEntry> m_slowCases; | 
|  | Vector<SwitchRecord> m_switches; | 
|  |  | 
|  | JumpList m_exceptionChecks; | 
|  | JumpList m_exceptionChecksWithCallFrameRollback; | 
|  | Label m_exceptionHandler; | 
|  |  | 
|  | unsigned m_getByIdIndex; | 
|  | unsigned m_putByIdIndex; | 
|  | unsigned m_byValInstructionIndex; | 
|  | unsigned m_callLinkInfoIndex; | 
|  |  | 
|  | Label m_arityCheck; | 
|  | std::unique_ptr<LinkBuffer> m_linkBuffer; | 
|  |  | 
|  | std::unique_ptr<JITDisassembler> m_disassembler; | 
|  | RefPtr<Profiler::Compilation> m_compilation; | 
|  | WeakRandom m_randomGenerator; | 
|  | static CodeRef stringGetByValStubGenerator(VM*); | 
|  |  | 
|  | PCToCodeOriginMapBuilder m_pcToCodeOriginMapBuilder; | 
|  |  | 
|  | HashMap<Instruction*, void*> m_instructionToMathIC; | 
|  | HashMap<Instruction*, MathICGenerationState> m_instructionToMathICGenerationState; | 
|  |  | 
|  | bool m_canBeOptimized; | 
|  | bool m_canBeOptimizedOrInlined; | 
|  | bool m_shouldEmitProfiling; | 
|  | } JIT_CLASS_ALIGNMENT; | 
|  |  | 
|  | } // namespace JSC | 
|  |  | 
|  | #endif // ENABLE(JIT) |