/*
* Copyright (C) 2008 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
#include <wtf/Platform.h>
#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)
#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>(actual), static_cast<int>(expected));
#include "CodeBlock.h"
#include "Interpreter.h"
#include "JITCode.h"
#include "JITStubs.h"
#include "Opcode.h"
#include "RegisterFile.h"
#include "MacroAssembler.h"
#include "Profiler.h"
#include <bytecode/SamplingTool.h>
#include <wtf/AlwaysInline.h>
#include <wtf/Vector.h>
namespace JSC {
class CodeBlock;
class JIT;
class JSPropertyNameIterator;
class Interpreter;
class Register;
class RegisterFile;
class ScopeChainNode;
class StructureChain;
struct CallLinkInfo;
struct Instruction;
struct OperandTypes;
struct PolymorphicAccessStructureList;
struct SimpleJumpTable;
struct StringJumpTable;
struct StructureStubInfo;
struct CallRecord {
MacroAssembler::Call from;
unsigned bytecodeIndex;
void* to;
CallRecord()
{
}
CallRecord(MacroAssembler::Call from, unsigned bytecodeIndex, void* to = 0)
: from(from)
, bytecodeIndex(bytecodeIndex)
, to(to)
{
}
};
struct JumpTable {
MacroAssembler::Jump from;
unsigned toBytecodeIndex;
JumpTable(MacroAssembler::Jump f, unsigned t)
: from(f)
, toBytecodeIndex(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 bytecodeIndex;
unsigned defaultOffset;
SwitchRecord(SimpleJumpTable* jumpTable, unsigned bytecodeIndex, unsigned defaultOffset, Type type)
: type(type)
, bytecodeIndex(bytecodeIndex)
, defaultOffset(defaultOffset)
{
this->jumpTable.simpleJumpTable = jumpTable;
}
SwitchRecord(StringJumpTable* jumpTable, unsigned bytecodeIndex, unsigned defaultOffset)
: type(String)
, bytecodeIndex(bytecodeIndex)
, defaultOffset(defaultOffset)
{
this->jumpTable.stringJumpTable = jumpTable;
}
};
struct PropertyStubCompilationInfo {
MacroAssembler::Call callReturnLocation;
MacroAssembler::Label hotPathBegin;
};
struct StructureStubCompilationInfo {
MacroAssembler::DataLabelPtr hotPathBegin;
MacroAssembler::Call hotPathOther;
MacroAssembler::Call callReturnLocation;
};
struct MethodCallCompilationInfo {
MethodCallCompilationInfo(unsigned propertyAccessIndex)
: propertyAccessIndex(propertyAccessIndex)
{
}
MacroAssembler::DataLabelPtr structureToCompare;
unsigned propertyAccessIndex;
};
// 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 MacroAssembler {
friend class JITStubCall;
using MacroAssembler::Jump;
using MacroAssembler::JumpList;
using MacroAssembler::Label;
// NOTES:
//
// regT0 has two special meanings. The return value from a stub
// call will always be in regT0, and by default (unless
// a register is specified) emitPutVirtualRegister() will store
// the value from regT0.
//
// regT3 is required to be callee-preserved.
//
// tempRegister2 is has no such dependencies. It is important that
// on x86/x86-64 it is ecx for performance reasons, since the
// MacroAssembler will need to plant register swaps if it is not -
// however the code will still function correctly.
#if CPU(X86_64)
static const RegisterID returnValueRegister = X86Registers::eax;
static const RegisterID cachedResultRegister = X86Registers::eax;
static const RegisterID firstArgumentRegister = X86Registers::edi;
static const RegisterID timeoutCheckRegister = X86Registers::r12;
static const RegisterID callFrameRegister = X86Registers::r13;
static const RegisterID tagTypeNumberRegister = X86Registers::r14;
static const RegisterID tagMaskRegister = X86Registers::r15;
static const RegisterID regT0 = X86Registers::eax;
static const RegisterID regT1 = X86Registers::edx;
static const RegisterID regT2 = X86Registers::ecx;
static const RegisterID regT3 = X86Registers::ebx;
static const FPRegisterID fpRegT0 = X86Registers::xmm0;
static const FPRegisterID fpRegT1 = X86Registers::xmm1;
static const FPRegisterID fpRegT2 = X86Registers::xmm2;
#elif CPU(X86)
static const RegisterID returnValueRegister = X86Registers::eax;
static const RegisterID cachedResultRegister = X86Registers::eax;
// On x86 we always use fastcall conventions = but on
// OS X if might make more sense to just use regparm.
static const RegisterID firstArgumentRegister = X86Registers::ecx;
static const RegisterID timeoutCheckRegister = X86Registers::esi;
static const RegisterID callFrameRegister = X86Registers::edi;
static const RegisterID regT0 = X86Registers::eax;
static const RegisterID regT1 = X86Registers::edx;
static const RegisterID regT2 = X86Registers::ecx;
static const RegisterID regT3 = X86Registers::ebx;
static const FPRegisterID fpRegT0 = X86Registers::xmm0;
static const FPRegisterID fpRegT1 = X86Registers::xmm1;
static const FPRegisterID fpRegT2 = X86Registers::xmm2;
#elif CPU(ARM_THUMB2)
static const RegisterID returnValueRegister = ARMRegisters::r0;
static const RegisterID cachedResultRegister = ARMRegisters::r0;
static const RegisterID firstArgumentRegister = ARMRegisters::r0;
static const RegisterID regT0 = ARMRegisters::r0;
static const RegisterID regT1 = ARMRegisters::r1;
static const RegisterID regT2 = ARMRegisters::r2;
static const RegisterID regT3 = ARMRegisters::r4;
static const RegisterID callFrameRegister = ARMRegisters::r5;
static const RegisterID timeoutCheckRegister = ARMRegisters::r6;
static const FPRegisterID fpRegT0 = ARMRegisters::d0;
static const FPRegisterID fpRegT1 = ARMRegisters::d1;
static const FPRegisterID fpRegT2 = ARMRegisters::d2;
#elif CPU(ARM_TRADITIONAL)
static const RegisterID returnValueRegister = ARMRegisters::r0;
static const RegisterID cachedResultRegister = ARMRegisters::r0;
static const RegisterID firstArgumentRegister = ARMRegisters::r0;
static const RegisterID timeoutCheckRegister = ARMRegisters::r5;
static const RegisterID callFrameRegister = ARMRegisters::r4;
static const RegisterID regT0 = ARMRegisters::r0;
static const RegisterID regT1 = ARMRegisters::r1;
static const RegisterID regT2 = ARMRegisters::r2;
// Callee preserved
static const RegisterID regT3 = ARMRegisters::r7;
static const RegisterID regS0 = ARMRegisters::S0;
// Callee preserved
static const RegisterID regS1 = ARMRegisters::S1;
static const RegisterID regStackPtr = ARMRegisters::sp;
static const RegisterID regLink = ARMRegisters::lr;
static const FPRegisterID fpRegT0 = ARMRegisters::d0;
static const FPRegisterID fpRegT1 = ARMRegisters::d1;
static const FPRegisterID fpRegT2 = ARMRegisters::d2;
#else
#error "JIT not supported on this platform."
#endif
static const int patchGetByIdDefaultStructure = -1;
// 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 patchGetByIdDefaultOffset = 256;
public:
static JITCode compile(JSGlobalData* globalData, CodeBlock* codeBlock)
{
return JIT(globalData, codeBlock).privateCompile();
}
static void compileGetByIdProto(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* structure, Structure* prototypeStructure, size_t cachedOffset, ReturnAddressPtr returnAddress)
{
JIT jit(globalData, codeBlock);
jit.privateCompileGetByIdProto(stubInfo, structure, prototypeStructure, cachedOffset, returnAddress, callFrame);
}
static void compileGetByIdSelfList(JSGlobalData* globalData, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* polymorphicStructures, int currentIndex, Structure* structure, size_t cachedOffset)
{
JIT jit(globalData, codeBlock);
jit.privateCompileGetByIdSelfList(stubInfo, polymorphicStructures, currentIndex, structure, cachedOffset);
}
static void compileGetByIdProtoList(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* prototypeStructureList, int currentIndex, Structure* structure, Structure* prototypeStructure, size_t cachedOffset)
{
JIT jit(globalData, codeBlock);
jit.privateCompileGetByIdProtoList(stubInfo, prototypeStructureList, currentIndex, structure, prototypeStructure, cachedOffset, callFrame);
}
static void compileGetByIdChainList(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* prototypeStructureList, int currentIndex, Structure* structure, StructureChain* chain, size_t count, size_t cachedOffset)
{
JIT jit(globalData, codeBlock);
jit.privateCompileGetByIdChainList(stubInfo, prototypeStructureList, currentIndex, structure, chain, count, cachedOffset, callFrame);
}
static void compileGetByIdChain(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* structure, StructureChain* chain, size_t count, size_t cachedOffset, ReturnAddressPtr returnAddress)
{
JIT jit(globalData, codeBlock);
jit.privateCompileGetByIdChain(stubInfo, structure, chain, count, cachedOffset, returnAddress, callFrame);
}
static void compilePutByIdTransition(JSGlobalData* globalData, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* oldStructure, Structure* newStructure, size_t cachedOffset, StructureChain* chain, ReturnAddressPtr returnAddress)
{
JIT jit(globalData, codeBlock);
jit.privateCompilePutByIdTransition(stubInfo, oldStructure, newStructure, cachedOffset, chain, returnAddress);
}
static void compileCTIMachineTrampolines(JSGlobalData* globalData, RefPtr<ExecutablePool>* executablePool, TrampolineStructure *trampolines)
{
JIT jit(globalData);
jit.privateCompileCTIMachineTrampolines(executablePool, globalData, trampolines);
}
static void patchGetByIdSelf(CodeBlock* codeblock, StructureStubInfo*, Structure*, size_t cachedOffset, ReturnAddressPtr returnAddress);
static void patchPutByIdReplace(CodeBlock* codeblock, StructureStubInfo*, Structure*, size_t cachedOffset, ReturnAddressPtr returnAddress);
static void patchMethodCallProto(CodeBlock* codeblock, MethodCallLinkInfo&, JSFunction*, Structure*, JSObject*, ReturnAddressPtr);
static void compilePatchGetArrayLength(JSGlobalData* globalData, CodeBlock* codeBlock, ReturnAddressPtr returnAddress)
{
JIT jit(globalData, codeBlock);
return jit.privateCompilePatchGetArrayLength(returnAddress);
}
static void linkCall(JSFunction* callee, CodeBlock* callerCodeBlock, CodeBlock* calleeCodeBlock, JITCode&, CallLinkInfo*, int callerArgCount, JSGlobalData*);
static void unlinkCall(CallLinkInfo*);
private:
struct JSRInfo {
DataLabelPtr storeLocation;
Label target;
JSRInfo(DataLabelPtr storeLocation, Label targetLocation)
: storeLocation(storeLocation)
, target(targetLocation)
{
}
};
JIT(JSGlobalData*, CodeBlock* = 0);
void privateCompileMainPass();
void privateCompileLinkPass();
void privateCompileSlowCases();
JITCode privateCompile();
void privateCompileGetByIdProto(StructureStubInfo*, Structure*, Structure* prototypeStructure, size_t cachedOffset, ReturnAddressPtr returnAddress, CallFrame* callFrame);
void privateCompileGetByIdSelfList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, size_t cachedOffset);
void privateCompileGetByIdProtoList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, Structure* prototypeStructure, size_t cachedOffset, CallFrame* callFrame);
void privateCompileGetByIdChainList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, StructureChain* chain, size_t count, size_t cachedOffset, CallFrame* callFrame);
void privateCompileGetByIdChain(StructureStubInfo*, Structure*, StructureChain*, size_t count, size_t cachedOffset, ReturnAddressPtr returnAddress, CallFrame* callFrame);
void privateCompilePutByIdTransition(StructureStubInfo*, Structure*, Structure*, size_t cachedOffset, StructureChain*, ReturnAddressPtr returnAddress);
void privateCompileCTIMachineTrampolines(RefPtr<ExecutablePool>* executablePool, JSGlobalData* data, TrampolineStructure *trampolines);
void privateCompilePatchGetArrayLength(ReturnAddressPtr returnAddress);
void addSlowCase(Jump);
void addSlowCase(JumpList);
void addJump(Jump, int);
void emitJumpSlowToHot(Jump, int);
void compileOpCall(OpcodeID, Instruction* instruction, unsigned callLinkInfoIndex);
void compileOpCallVarargs(Instruction* instruction);
void compileOpCallInitializeCallFrame();
void compileOpCallSetupArgs(Instruction*);
void compileOpCallVarargsSetupArgs(Instruction*);
void compileOpCallSlowCase(Instruction* instruction, Vector<SlowCaseEntry>::iterator& iter, unsigned callLinkInfoIndex, OpcodeID opcodeID);
void compileOpCallVarargsSlowCase(Instruction* instruction, Vector<SlowCaseEntry>::iterator& iter);
void compileOpConstructSetupArgs(Instruction*);
enum CompileOpStrictEqType { OpStrictEq, OpNStrictEq };
void compileOpStrictEq(Instruction* instruction, CompileOpStrictEqType type);
bool isOperandConstantImmediateDouble(unsigned src);
void emitLoadDouble(unsigned index, FPRegisterID value);
void emitLoadInt32ToDouble(unsigned index, FPRegisterID value);
Address addressFor(unsigned index, RegisterID base = callFrameRegister);
void testPrototype(Structure*, JumpList& failureCases);
#if USE(JSVALUE32_64)
Address tagFor(unsigned index, RegisterID base = callFrameRegister);
Address payloadFor(unsigned index, RegisterID base = callFrameRegister);
bool getOperandConstantImmediateInt(unsigned op1, unsigned op2, unsigned& op, int32_t& constant);
void emitLoadTag(unsigned index, RegisterID tag);
void emitLoadPayload(unsigned index, RegisterID payload);
void emitLoad(const JSValue& v, RegisterID tag, RegisterID payload);
void emitLoad(unsigned index, RegisterID tag, RegisterID payload, RegisterID base = callFrameRegister);
void emitLoad2(unsigned index1, RegisterID tag1, RegisterID payload1, unsigned index2, RegisterID tag2, RegisterID payload2);
void emitStore(unsigned index, RegisterID tag, RegisterID payload, RegisterID base = callFrameRegister);
void emitStore(unsigned index, const JSValue constant, RegisterID base = callFrameRegister);
void emitStoreInt32(unsigned index, RegisterID payload, bool indexIsInt32 = false);
void emitStoreInt32(unsigned index, Imm32 payload, bool indexIsInt32 = false);
void emitStoreCell(unsigned index, RegisterID payload, bool indexIsCell = false);
void emitStoreBool(unsigned index, RegisterID tag, bool indexIsBool = false);
void emitStoreDouble(unsigned index, FPRegisterID value);
bool isLabeled(unsigned bytecodeIndex);
void map(unsigned bytecodeIndex, unsigned virtualRegisterIndex, RegisterID tag, RegisterID payload);
void unmap(RegisterID);
void unmap();
bool isMapped(unsigned virtualRegisterIndex);
bool getMappedPayload(unsigned virtualRegisterIndex, RegisterID& payload);
bool getMappedTag(unsigned virtualRegisterIndex, RegisterID& tag);
void emitJumpSlowCaseIfNotJSCell(unsigned virtualRegisterIndex);
void emitJumpSlowCaseIfNotJSCell(unsigned virtualRegisterIndex, RegisterID tag);
void linkSlowCaseIfNotJSCell(Vector<SlowCaseEntry>::iterator&, unsigned virtualRegisterIndex);
#if ENABLE(JIT_OPTIMIZE_PROPERTY_ACCESS)
void compileGetByIdHotPath();
void compileGetByIdSlowCase(int resultVReg, int baseVReg, Identifier* ident, Vector<SlowCaseEntry>::iterator& iter, bool isMethodCheck = false);
#endif
void compileGetDirectOffset(RegisterID base, RegisterID resultTag, RegisterID resultPayload, Structure* structure, size_t cachedOffset);
void compileGetDirectOffset(JSObject* base, RegisterID temp, RegisterID resultTag, RegisterID resultPayload, size_t cachedOffset);
void compileGetDirectOffset(RegisterID base, RegisterID resultTag, RegisterID resultPayload, RegisterID structure, RegisterID offset);
void compilePutDirectOffset(RegisterID base, RegisterID valueTag, RegisterID valuePayload, Structure* structure, size_t 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(X86)
// These architecture specific value are used to enable patching - see comment on op_put_by_id.
static const int patchOffsetPutByIdStructure = 7;
static const int patchOffsetPutByIdExternalLoad = 13;
static const int patchLengthPutByIdExternalLoad = 3;
static const int patchOffsetPutByIdPropertyMapOffset1 = 22;
static const int patchOffsetPutByIdPropertyMapOffset2 = 28;
// These architecture specific value are used to enable patching - see comment on op_get_by_id.
static const int patchOffsetGetByIdStructure = 7;
static const int patchOffsetGetByIdBranchToSlowCase = 13;
static const int patchOffsetGetByIdExternalLoad = 13;
static const int patchLengthGetByIdExternalLoad = 3;
static const int patchOffsetGetByIdPropertyMapOffset1 = 22;
static const int patchOffsetGetByIdPropertyMapOffset2 = 28;
static const int patchOffsetGetByIdPutResult = 28;
#if ENABLE(OPCODE_SAMPLING) && USE(JIT_STUB_ARGUMENT_VA_LIST)
static const int patchOffsetGetByIdSlowCaseCall = 35;
#elif ENABLE(OPCODE_SAMPLING)
static const int patchOffsetGetByIdSlowCaseCall = 37;
#elif USE(JIT_STUB_ARGUMENT_VA_LIST)
static const int patchOffsetGetByIdSlowCaseCall = 25;
#else
static const int patchOffsetGetByIdSlowCaseCall = 27;
#endif
static const int patchOffsetOpCallCompareToJump = 6;
static const int patchOffsetMethodCheckProtoObj = 11;
static const int patchOffsetMethodCheckProtoStruct = 18;
static const int patchOffsetMethodCheckPutFunction = 29;
#elif CPU(ARM_TRADITIONAL)
// These architecture specific value are used to enable patching - see comment on op_put_by_id.
static const int patchOffsetPutByIdStructure = 4;
static const int patchOffsetPutByIdExternalLoad = 16;
static const int patchLengthPutByIdExternalLoad = 4;
static const int patchOffsetPutByIdPropertyMapOffset1 = 20;
static const int patchOffsetPutByIdPropertyMapOffset2 = 28;
// These architecture specific value are used to enable patching - see comment on op_get_by_id.
static const int patchOffsetGetByIdStructure = 4;
static const int patchOffsetGetByIdBranchToSlowCase = 16;
static const int patchOffsetGetByIdExternalLoad = 16;
static const int patchLengthGetByIdExternalLoad = 4;
static const int patchOffsetGetByIdPropertyMapOffset1 = 20;
static const int patchOffsetGetByIdPropertyMapOffset2 = 28;
static const int patchOffsetGetByIdPutResult = 36;
#if ENABLE(OPCODE_SAMPLING)
#error "OPCODE_SAMPLING is not yet supported"
#else
static const int patchOffsetGetByIdSlowCaseCall = 32;
#endif
static const int patchOffsetOpCallCompareToJump = 12;
static const int patchOffsetMethodCheckProtoObj = 12;
static const int patchOffsetMethodCheckProtoStruct = 20;
static const int patchOffsetMethodCheckPutFunction = 32;
// sequenceOpCall
static const int sequenceOpCallInstructionSpace = 12;
static const int sequenceOpCallConstantSpace = 2;
// sequenceMethodCheck
static const int sequenceMethodCheckInstructionSpace = 40;
static const int sequenceMethodCheckConstantSpace = 6;
// sequenceGetByIdHotPath
static const int sequenceGetByIdHotPathInstructionSpace = 36;
static const int sequenceGetByIdHotPathConstantSpace = 4;
// sequenceGetByIdSlowCase
static const int sequenceGetByIdSlowCaseInstructionSpace = 40;
static const int sequenceGetByIdSlowCaseConstantSpace = 2;
// sequencePutById
static const int sequencePutByIdInstructionSpace = 36;
static const int sequencePutByIdConstantSpace = 4;
#else
#error "JSVALUE32_64 not supported on this platform."
#endif
#else // USE(JSVALUE32_64)
void emitGetVirtualRegister(int src, RegisterID dst);
void emitGetVirtualRegisters(int src1, RegisterID dst1, int src2, RegisterID dst2);
void emitPutVirtualRegister(unsigned dst, RegisterID from = regT0);
int32_t getConstantOperandImmediateInt(unsigned src);
void emitGetVariableObjectRegister(RegisterID variableObject, int index, RegisterID dst);
void emitPutVariableObjectRegister(RegisterID src, RegisterID variableObject, int index);
void killLastResultRegister();
Jump emitJumpIfJSCell(RegisterID);
Jump emitJumpIfBothJSCells(RegisterID, RegisterID, RegisterID);
void emitJumpSlowCaseIfJSCell(RegisterID);
Jump emitJumpIfNotJSCell(RegisterID);
void emitJumpSlowCaseIfNotJSCell(RegisterID);
void emitJumpSlowCaseIfNotJSCell(RegisterID, int VReg);
#if USE(JSVALUE64)
JIT::Jump emitJumpIfImmediateNumber(RegisterID);
JIT::Jump emitJumpIfNotImmediateNumber(RegisterID);
#else
JIT::Jump emitJumpIfImmediateNumber(RegisterID reg)
{
return emitJumpIfImmediateInteger(reg);
}
JIT::Jump emitJumpIfNotImmediateNumber(RegisterID reg)
{
return emitJumpIfNotImmediateInteger(reg);
}
#endif
JIT::Jump emitJumpIfImmediateInteger(RegisterID);
JIT::Jump emitJumpIfNotImmediateInteger(RegisterID);
JIT::Jump emitJumpIfNotImmediateIntegers(RegisterID, RegisterID, RegisterID);
void emitJumpSlowCaseIfNotImmediateInteger(RegisterID);
void emitJumpSlowCaseIfNotImmediateNumber(RegisterID);
void emitJumpSlowCaseIfNotImmediateIntegers(RegisterID, RegisterID, RegisterID);
#if !USE(JSVALUE64)
void emitFastArithDeTagImmediate(RegisterID);
Jump emitFastArithDeTagImmediateJumpIfZero(RegisterID);
#endif
void emitFastArithReTagImmediate(RegisterID src, RegisterID dest);
void emitFastArithImmToInt(RegisterID);
void emitFastArithIntToImmNoCheck(RegisterID src, RegisterID dest);
void emitTagAsBoolImmediate(RegisterID reg);
void compileBinaryArithOp(OpcodeID, unsigned dst, unsigned src1, unsigned src2, OperandTypes opi);
#if USE(JSVALUE64)
void compileBinaryArithOpSlowCase(OpcodeID, Vector<SlowCaseEntry>::iterator&, unsigned dst, unsigned src1, unsigned src2, OperandTypes, bool op1HasImmediateIntFastCase, bool op2HasImmediateIntFastCase);
#else
void compileBinaryArithOpSlowCase(OpcodeID, Vector<SlowCaseEntry>::iterator&, unsigned dst, unsigned src1, unsigned src2, OperandTypes);
#endif
#if ENABLE(JIT_OPTIMIZE_PROPERTY_ACCESS)
void compileGetByIdHotPath(int resultVReg, int baseVReg, Identifier* ident, unsigned propertyAccessInstructionIndex);
void compileGetByIdSlowCase(int resultVReg, int baseVReg, Identifier* ident, Vector<SlowCaseEntry>::iterator& iter, bool isMethodCheck = false);
#endif
void compileGetDirectOffset(RegisterID base, RegisterID result, Structure* structure, size_t cachedOffset);
void compileGetDirectOffset(JSObject* base, RegisterID temp, RegisterID result, size_t cachedOffset);
void compileGetDirectOffset(RegisterID base, RegisterID result, RegisterID structure, RegisterID offset, RegisterID scratch);
void compilePutDirectOffset(RegisterID base, RegisterID value, Structure* structure, size_t cachedOffset);
#if CPU(X86_64)
// These architecture specific value are used to enable patching - see comment on op_put_by_id.
static const int patchOffsetPutByIdStructure = 10;
static const int patchOffsetPutByIdExternalLoad = 20;
static const int patchLengthPutByIdExternalLoad = 4;
static const int patchOffsetPutByIdPropertyMapOffset = 31;
// These architecture specific value are used to enable patching - see comment on op_get_by_id.
static const int patchOffsetGetByIdStructure = 10;
static const int patchOffsetGetByIdBranchToSlowCase = 20;
static const int patchOffsetGetByIdExternalLoad = 20;
static const int patchLengthGetByIdExternalLoad = 4;
static const int patchOffsetGetByIdPropertyMapOffset = 31;
static const int patchOffsetGetByIdPutResult = 31;
#if ENABLE(OPCODE_SAMPLING)
static const int patchOffsetGetByIdSlowCaseCall = 64;
#else
static const int patchOffsetGetByIdSlowCaseCall = 41;
#endif
static const int patchOffsetOpCallCompareToJump = 9;
static const int patchOffsetMethodCheckProtoObj = 20;
static const int patchOffsetMethodCheckProtoStruct = 30;
static const int patchOffsetMethodCheckPutFunction = 50;
#elif CPU(X86)
// These architecture specific value are used to enable patching - see comment on op_put_by_id.
static const int patchOffsetPutByIdStructure = 7;
static const int patchOffsetPutByIdExternalLoad = 13;
static const int patchLengthPutByIdExternalLoad = 3;
static const int patchOffsetPutByIdPropertyMapOffset = 22;
// These architecture specific value are used to enable patching - see comment on op_get_by_id.
static const int patchOffsetGetByIdStructure = 7;
static const int patchOffsetGetByIdBranchToSlowCase = 13;
static const int patchOffsetGetByIdExternalLoad = 13;
static const int patchLengthGetByIdExternalLoad = 3;
static const int patchOffsetGetByIdPropertyMapOffset = 22;
static const int patchOffsetGetByIdPutResult = 22;
#if ENABLE(OPCODE_SAMPLING) && USE(JIT_STUB_ARGUMENT_VA_LIST)
static const int patchOffsetGetByIdSlowCaseCall = 31;
#elif ENABLE(OPCODE_SAMPLING)
static const int patchOffsetGetByIdSlowCaseCall = 33;
#elif USE(JIT_STUB_ARGUMENT_VA_LIST)
static const int patchOffsetGetByIdSlowCaseCall = 21;
#else
static const int patchOffsetGetByIdSlowCaseCall = 23;
#endif
static const int patchOffsetOpCallCompareToJump = 6;
static const int patchOffsetMethodCheckProtoObj = 11;
static const int patchOffsetMethodCheckProtoStruct = 18;
static const int patchOffsetMethodCheckPutFunction = 29;
#elif CPU(ARM_THUMB2)
// These architecture specific value are used to enable patching - see comment on op_put_by_id.
static const int patchOffsetPutByIdStructure = 10;
static const int patchOffsetPutByIdExternalLoad = 26;
static const int patchLengthPutByIdExternalLoad = 12;
static const int patchOffsetPutByIdPropertyMapOffset = 46;
// These architecture specific value are used to enable patching - see comment on op_get_by_id.
static const int patchOffsetGetByIdStructure = 10;
static const int patchOffsetGetByIdBranchToSlowCase = 26;
static const int patchOffsetGetByIdExternalLoad = 26;
static const int patchLengthGetByIdExternalLoad = 12;
static const int patchOffsetGetByIdPropertyMapOffset = 46;
static const int patchOffsetGetByIdPutResult = 50;
#if ENABLE(OPCODE_SAMPLING)
static const int patchOffsetGetByIdSlowCaseCall = 0; // FIMXE
#else
static const int patchOffsetGetByIdSlowCaseCall = 28;
#endif
static const int patchOffsetOpCallCompareToJump = 16;
static const int patchOffsetMethodCheckProtoObj = 24;
static const int patchOffsetMethodCheckProtoStruct = 34;
static const int patchOffsetMethodCheckPutFunction = 58;
#elif CPU(ARM_TRADITIONAL)
// These architecture specific value are used to enable patching - see comment on op_put_by_id.
static const int patchOffsetPutByIdStructure = 4;
static const int patchOffsetPutByIdExternalLoad = 16;
static const int patchLengthPutByIdExternalLoad = 4;
static const int patchOffsetPutByIdPropertyMapOffset = 20;
// These architecture specific value are used to enable patching - see comment on op_get_by_id.
static const int patchOffsetGetByIdStructure = 4;
static const int patchOffsetGetByIdBranchToSlowCase = 16;
static const int patchOffsetGetByIdExternalLoad = 16;
static const int patchLengthGetByIdExternalLoad = 4;
static const int patchOffsetGetByIdPropertyMapOffset = 20;
static const int patchOffsetGetByIdPutResult = 28;
#if ENABLE(OPCODE_SAMPLING)
#error "OPCODE_SAMPLING is not yet supported"
#else
static const int patchOffsetGetByIdSlowCaseCall = 28;
#endif
static const int patchOffsetOpCallCompareToJump = 12;
static const int patchOffsetMethodCheckProtoObj = 12;
static const int patchOffsetMethodCheckProtoStruct = 20;
static const int patchOffsetMethodCheckPutFunction = 32;
// sequenceOpCall
static const int sequenceOpCallInstructionSpace = 12;
static const int sequenceOpCallConstantSpace = 2;
// sequenceMethodCheck
static const int sequenceMethodCheckInstructionSpace = 40;
static const int sequenceMethodCheckConstantSpace = 6;
// sequenceGetByIdHotPath
static const int sequenceGetByIdHotPathInstructionSpace = 28;
static const int sequenceGetByIdHotPathConstantSpace = 3;
// sequenceGetByIdSlowCase
static const int sequenceGetByIdSlowCaseInstructionSpace = 32;
static const int sequenceGetByIdSlowCaseConstantSpace = 2;
// sequencePutById
static const int sequencePutByIdInstructionSpace = 28;
static const int sequencePutByIdConstantSpace = 3;
#endif
#endif // USE(JSVALUE32_64)
#if defined(ASSEMBLER_HAS_CONSTANT_POOL) && ASSEMBLER_HAS_CONSTANT_POOL
#define BEGIN_UNINTERRUPTED_SEQUENCE(name) beginUninterruptedSequence(name ## InstructionSpace, name ## ConstantSpace)
#define END_UNINTERRUPTED_SEQUENCE(name) endUninterruptedSequence(name ## InstructionSpace, name ## ConstantSpace)
void beginUninterruptedSequence(int, int);
void endUninterruptedSequence(int, int);
#else
#define BEGIN_UNINTERRUPTED_SEQUENCE(name)
#define END_UNINTERRUPTED_SEQUENCE(name)
#endif
void emit_op_add(Instruction*);
void emit_op_bitand(Instruction*);
void emit_op_bitnot(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_catch(Instruction*);
void emit_op_construct(Instruction*);
void emit_op_construct_verify(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_enter_with_activation(Instruction*);
void emit_op_eq(Instruction*);
void emit_op_eq_null(Instruction*);
void emit_op_get_by_id(Instruction*);
void emit_op_get_by_val(Instruction*);
void emit_op_get_by_pname(Instruction*);
void emit_op_get_global_var(Instruction*);
void emit_op_get_scoped_var(Instruction*);
void emit_op_init_arguments(Instruction*);
void emit_op_instanceof(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_jnless(Instruction*);
void emit_op_jless(Instruction*);
void emit_op_jnlesseq(Instruction*);
void emit_op_jsr(Instruction*);
void emit_op_jtrue(Instruction*);
void emit_op_load_varargs(Instruction*);
void emit_op_loop(Instruction*);
void emit_op_loop_if_less(Instruction*);
void emit_op_loop_if_lesseq(Instruction*);
void emit_op_loop_if_true(Instruction*);
void emit_op_loop_if_false(Instruction*);
void emit_op_lshift(Instruction*);
void emit_op_method_check(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_error(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_new_scope(Instruction*);
void emit_op_push_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(Instruction*);
void emit_op_put_global_var(Instruction*);
void emit_op_put_scoped_var(Instruction*);
void emit_op_put_setter(Instruction*);
void emit_op_resolve(Instruction*);
void emit_op_resolve_base(Instruction*);
void emit_op_resolve_global(Instruction*);
void emit_op_resolve_skip(Instruction*);
void emit_op_resolve_with_base(Instruction*);
void emit_op_ret(Instruction*);
void emit_op_rshift(Instruction*);
void emit_op_sret(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_to_jsnumber(Instruction*);
void emit_op_to_primitive(Instruction*);
void emit_op_unexpected_load(Instruction*);
#if ENABLE(JIT_OPTIMIZE_MOD)
void softModulo();
#endif
void emitSlow_op_add(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_bitand(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_bitnot(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_construct_verify(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_convert_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_by_val(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_get_by_pname(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_instanceof(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_jfalse(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_jnless(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_jless(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_jnlesseq(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_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_method_check(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_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_resolve_global(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&);
/* These functions are deprecated: Please use JITStubCall instead. */
void emitPutJITStubArg(RegisterID src, unsigned argumentNumber);
#if USE(JSVALUE32_64)
void emitPutJITStubArg(RegisterID tag, RegisterID payload, unsigned argumentNumber);
void emitPutJITStubArgFromVirtualRegister(unsigned src, unsigned argumentNumber, RegisterID scratch1, RegisterID scratch2);
#else
void emitPutJITStubArgFromVirtualRegister(unsigned src, unsigned argumentNumber, RegisterID scratch);
#endif
void emitPutJITStubArgConstant(unsigned value, unsigned argumentNumber);
void emitPutJITStubArgConstant(void* value, unsigned argumentNumber);
void emitGetJITStubArg(unsigned argumentNumber, RegisterID dst);
void emitInitRegister(unsigned dst);
void emitPutToCallFrameHeader(RegisterID from, RegisterFile::CallFrameHeaderEntry entry);
void emitPutImmediateToCallFrameHeader(void* value, RegisterFile::CallFrameHeaderEntry entry);
void emitGetFromCallFrameHeaderPtr(RegisterFile::CallFrameHeaderEntry entry, RegisterID to, RegisterID from = callFrameRegister);
void emitGetFromCallFrameHeader32(RegisterFile::CallFrameHeaderEntry entry, RegisterID to, RegisterID from = callFrameRegister);
JSValue getConstantOperand(unsigned src);
bool isOperandConstantImmediateInt(unsigned src);
Jump getSlowCase(Vector<SlowCaseEntry>::iterator& iter)
{
return iter++->from;
}
void linkSlowCase(Vector<SlowCaseEntry>::iterator& iter)
{
iter->from.link(this);
++iter;
}
void linkSlowCaseIfNotJSCell(Vector<SlowCaseEntry>::iterator&, int vReg);
Jump checkStructure(RegisterID reg, Structure* structure);
void restoreArgumentReference();
void restoreArgumentReferenceForTrampoline();
Call emitNakedCall(CodePtr function = CodePtr());
void preserveReturnAddressAfterCall(RegisterID);
void restoreReturnAddressBeforeReturn(RegisterID);
void restoreReturnAddressBeforeReturn(Address);
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&, uint32_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
Interpreter* m_interpreter;
JSGlobalData* m_globalData;
CodeBlock* m_codeBlock;
Vector<CallRecord> m_calls;
Vector<Label> m_labels;
Vector<PropertyStubCompilationInfo> m_propertyAccessCompilationInfo;
Vector<StructureStubCompilationInfo> m_callStructureStubCompilationInfo;
Vector<MethodCallCompilationInfo> m_methodCallCompilationInfo;
Vector<JumpTable> m_jmpTable;
unsigned m_bytecodeIndex;
Vector<JSRInfo> m_jsrSites;
Vector<SlowCaseEntry> m_slowCases;
Vector<SwitchRecord> m_switches;
unsigned m_propertyAccessInstructionIndex;
unsigned m_globalResolveInfoIndex;
unsigned m_callLinkInfoIndex;
#if USE(JSVALUE32_64)
unsigned m_jumpTargetIndex;
unsigned m_mappedBytecodeIndex;
unsigned m_mappedVirtualRegisterIndex;
RegisterID m_mappedTag;
RegisterID m_mappedPayload;
#else
int m_lastResultBytecodeRegister;
unsigned m_jumpTargetsPosition;
#endif
#ifndef NDEBUG
#if defined(ASSEMBLER_HAS_CONSTANT_POOL) && ASSEMBLER_HAS_CONSTANT_POOL
Label m_uninterruptedInstructionSequenceBegin;
int m_uninterruptedConstantSequenceBegin;
#endif
#endif
} JIT_CLASS_ALIGNMENT;
inline void JIT::emit_op_loop(Instruction* currentInstruction)
{
emitTimeoutCheck();
emit_op_jmp(currentInstruction);
}
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);
}
} // namespace JSC
#endif // ENABLE(JIT)
#endif // JIT_h