/*
- * Copyright (C) 2008 Apple Inc. All rights reserved.
+ * Copyright (C) 2008, 2012, 2013 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
#ifndef JIT_h
#define JIT_h
-#include <wtf/Platform.h>
-
#if ENABLE(JIT)
+// Verbose logging of code generation
+#define ENABLE_JIT_VERBOSE 0
+// Verbose logging for OSR-related code.
+#define ENABLE_JIT_VERBOSE_OSR 0
+
// We've run into some problems where changing the size of the class JIT leads to
// performance fluctuations. Try forcing alignment in an attempt to stabalize this.
#if COMPILER(GCC)
#define JIT_CLASS_ALIGNMENT
#endif
+#define ASSERT_JIT_OFFSET(actual, expected) ASSERT_WITH_MESSAGE(actual == expected, "JIT Offset \"%s\" should be %d, not %d.\n", #expected, static_cast<int>(expected), static_cast<int>(actual));
+
#include "CodeBlock.h"
+#include "CompactJITCodeMap.h"
#include "Interpreter.h"
-#include "JITCode.h"
-#include "JITStubs.h"
+#include "JITDisassembler.h"
+#include "JSInterfaceJIT.h"
+#include "LegacyProfiler.h"
#include "Opcode.h"
-#include "RegisterFile.h"
-#include "MacroAssembler.h"
-#include "Profiler.h"
+#include "ResultType.h"
+#include "UnusedPointer.h"
#include <bytecode/SamplingTool.h>
-#include <wtf/AlwaysInline.h>
-#include <wtf/Vector.h>
namespace JSC {
class CodeBlock;
+ class FunctionExecutable;
class JIT;
class JSPropertyNameIterator;
class Interpreter;
+ class JSScope;
+ class JSStack;
+ class MarkedAllocator;
class Register;
- class RegisterFile;
- class ScopeChainNode;
- class SimpleJumpTable;
- class StringJumpTable;
class StructureChain;
struct CallLinkInfo;
struct Instruction;
struct OperandTypes;
struct PolymorphicAccessStructureList;
+ struct SimpleJumpTable;
+ struct StringJumpTable;
struct StructureStubInfo;
struct CallRecord {
MacroAssembler::Call from;
- unsigned bytecodeIndex;
+ unsigned bytecodeOffset;
void* to;
CallRecord()
{
}
- CallRecord(MacroAssembler::Call from, unsigned bytecodeIndex, void* to = 0)
+ CallRecord(MacroAssembler::Call from, unsigned bytecodeOffset, void* to = 0)
: from(from)
- , bytecodeIndex(bytecodeIndex)
+ , bytecodeOffset(bytecodeOffset)
, to(to)
{
}
struct JumpTable {
MacroAssembler::Jump from;
- unsigned toBytecodeIndex;
+ unsigned toBytecodeOffset;
JumpTable(MacroAssembler::Jump f, unsigned t)
: from(f)
- , toBytecodeIndex(t)
+ , toBytecodeOffset(t)
{
}
};
StringJumpTable* stringJumpTable;
} jumpTable;
- unsigned bytecodeIndex;
+ unsigned bytecodeOffset;
unsigned defaultOffset;
- SwitchRecord(SimpleJumpTable* jumpTable, unsigned bytecodeIndex, unsigned defaultOffset, Type type)
+ SwitchRecord(SimpleJumpTable* jumpTable, unsigned bytecodeOffset, unsigned defaultOffset, Type type)
: type(type)
- , bytecodeIndex(bytecodeIndex)
+ , bytecodeOffset(bytecodeOffset)
, defaultOffset(defaultOffset)
{
this->jumpTable.simpleJumpTable = jumpTable;
}
- SwitchRecord(StringJumpTable* jumpTable, unsigned bytecodeIndex, unsigned defaultOffset)
+ SwitchRecord(StringJumpTable* jumpTable, unsigned bytecodeOffset, unsigned defaultOffset)
: type(String)
- , bytecodeIndex(bytecodeIndex)
+ , bytecodeOffset(bytecodeOffset)
, defaultOffset(defaultOffset)
{
this->jumpTable.stringJumpTable = jumpTable;
}
};
+ enum PropertyStubGetById_T { PropertyStubGetById };
+ enum PropertyStubPutById_T { PropertyStubPutById };
+
struct PropertyStubCompilationInfo {
+ enum Type { GetById, PutById } m_type;
+
+ unsigned bytecodeIndex;
MacroAssembler::Call callReturnLocation;
MacroAssembler::Label hotPathBegin;
- };
+ MacroAssembler::DataLabelPtr getStructureToCompare;
+ MacroAssembler::PatchableJump getStructureCheck;
+ MacroAssembler::ConvertibleLoadLabel propertyStorageLoad;
+#if USE(JSVALUE64)
+ MacroAssembler::DataLabelCompact getDisplacementLabel;
+#else
+ MacroAssembler::DataLabelCompact getDisplacementLabel1;
+ MacroAssembler::DataLabelCompact getDisplacementLabel2;
+#endif
+ MacroAssembler::Label getPutResult;
+ MacroAssembler::Label getColdPathBegin;
+ MacroAssembler::DataLabelPtr putStructureToCompare;
+#if USE(JSVALUE64)
+ MacroAssembler::DataLabel32 putDisplacementLabel;
+#else
+ MacroAssembler::DataLabel32 putDisplacementLabel1;
+ MacroAssembler::DataLabel32 putDisplacementLabel2;
+#endif
- struct StructureStubCompilationInfo {
- MacroAssembler::DataLabelPtr hotPathBegin;
- MacroAssembler::Call hotPathOther;
- MacroAssembler::Call callReturnLocation;
+#if !ASSERT_DISABLED
+ PropertyStubCompilationInfo()
+ : bytecodeIndex(std::numeric_limits<unsigned>::max())
+ {
+ }
+#endif
+
+
+ PropertyStubCompilationInfo(
+ PropertyStubGetById_T, unsigned bytecodeIndex, MacroAssembler::Label hotPathBegin,
+ MacroAssembler::DataLabelPtr structureToCompare,
+ MacroAssembler::PatchableJump structureCheck,
+ MacroAssembler::ConvertibleLoadLabel propertyStorageLoad,
+#if USE(JSVALUE64)
+ MacroAssembler::DataLabelCompact displacementLabel,
+#else
+ MacroAssembler::DataLabelCompact displacementLabel1,
+ MacroAssembler::DataLabelCompact displacementLabel2,
+#endif
+ MacroAssembler::Label putResult)
+ : m_type(GetById)
+ , bytecodeIndex(bytecodeIndex)
+ , hotPathBegin(hotPathBegin)
+ , getStructureToCompare(structureToCompare)
+ , getStructureCheck(structureCheck)
+ , propertyStorageLoad(propertyStorageLoad)
+#if USE(JSVALUE64)
+ , getDisplacementLabel(displacementLabel)
+#else
+ , getDisplacementLabel1(displacementLabel1)
+ , getDisplacementLabel2(displacementLabel2)
+#endif
+ , getPutResult(putResult)
+ {
+ }
+
+ PropertyStubCompilationInfo(
+ PropertyStubPutById_T, unsigned bytecodeIndex, MacroAssembler::Label hotPathBegin,
+ MacroAssembler::DataLabelPtr structureToCompare,
+ MacroAssembler::ConvertibleLoadLabel propertyStorageLoad,
+#if USE(JSVALUE64)
+ MacroAssembler::DataLabel32 displacementLabel
+#else
+ MacroAssembler::DataLabel32 displacementLabel1,
+ MacroAssembler::DataLabel32 displacementLabel2
+#endif
+ )
+ : m_type(PutById)
+ , bytecodeIndex(bytecodeIndex)
+ , hotPathBegin(hotPathBegin)
+ , propertyStorageLoad(propertyStorageLoad)
+ , putStructureToCompare(structureToCompare)
+#if USE(JSVALUE64)
+ , putDisplacementLabel(displacementLabel)
+#else
+ , putDisplacementLabel1(displacementLabel1)
+ , putDisplacementLabel2(displacementLabel2)
+#endif
+ {
+ }
+
+ void slowCaseInfo(PropertyStubGetById_T, MacroAssembler::Label coldPathBegin, MacroAssembler::Call call)
+ {
+ ASSERT(m_type == GetById);
+ callReturnLocation = call;
+ getColdPathBegin = coldPathBegin;
+ }
+
+ void slowCaseInfo(PropertyStubPutById_T, MacroAssembler::Call call)
+ {
+ ASSERT(m_type == PutById);
+ callReturnLocation = call;
+ }
+
+ void copyToStubInfo(StructureStubInfo& info, LinkBuffer &patchBuffer);
};
- struct MethodCallCompilationInfo {
- MethodCallCompilationInfo(unsigned propertyAccessIndex)
- : propertyAccessIndex(propertyAccessIndex)
+ struct ByValCompilationInfo {
+ ByValCompilationInfo() { }
+
+ ByValCompilationInfo(unsigned bytecodeIndex, MacroAssembler::PatchableJump badTypeJump, JITArrayMode arrayMode, MacroAssembler::Label doneTarget)
+ : bytecodeIndex(bytecodeIndex)
+ , badTypeJump(badTypeJump)
+ , arrayMode(arrayMode)
+ , doneTarget(doneTarget)
{
}
+
+ unsigned bytecodeIndex;
+ MacroAssembler::PatchableJump badTypeJump;
+ JITArrayMode arrayMode;
+ MacroAssembler::Label doneTarget;
+ MacroAssembler::Label slowPathTarget;
+ MacroAssembler::Call returnAddress;
+ };
- MacroAssembler::DataLabelPtr structureToCompare;
- unsigned propertyAccessIndex;
+ struct StructureStubCompilationInfo {
+ MacroAssembler::DataLabelPtr hotPathBegin;
+ MacroAssembler::Call hotPathOther;
+ MacroAssembler::Call callReturnLocation;
+ CallLinkInfo::CallType callType;
+ unsigned bytecodeIndex;
};
// Near calls can only be patched to other JIT code, regular calls can be patched to JIT code or relinked to stub functions.
void ctiPatchCallByReturnAddress(CodeBlock* codeblock, ReturnAddressPtr returnAddress, MacroAssemblerCodePtr newCalleeFunction);
void ctiPatchCallByReturnAddress(CodeBlock* codeblock, ReturnAddressPtr returnAddress, FunctionPtr newCalleeFunction);
- class JIT : private MacroAssembler {
+ class JIT : private JSInterfaceJIT {
friend class JITStubCall;
+ friend struct PropertyStubCompilationInfo;
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 PLATFORM(X86_64)
- static const RegisterID returnValueRegister = X86::eax;
- static const RegisterID cachedResultRegister = X86::eax;
- static const RegisterID firstArgumentRegister = X86::edi;
-
- static const RegisterID timeoutCheckRegister = X86::r12;
- static const RegisterID callFrameRegister = X86::r13;
- static const RegisterID tagTypeNumberRegister = X86::r14;
- static const RegisterID tagMaskRegister = X86::r15;
-
- static const RegisterID regT0 = X86::eax;
- static const RegisterID regT1 = X86::edx;
- static const RegisterID regT2 = X86::ecx;
- static const RegisterID regT3 = X86::ebx;
-
- static const FPRegisterID fpRegT0 = X86::xmm0;
- static const FPRegisterID fpRegT1 = X86::xmm1;
- static const FPRegisterID fpRegT2 = X86::xmm2;
-#elif PLATFORM(X86)
- static const RegisterID returnValueRegister = X86::eax;
- static const RegisterID cachedResultRegister = X86::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 = X86::ecx;
-
- static const RegisterID timeoutCheckRegister = X86::esi;
- static const RegisterID callFrameRegister = X86::edi;
-
- static const RegisterID regT0 = X86::eax;
- static const RegisterID regT1 = X86::edx;
- static const RegisterID regT2 = X86::ecx;
- static const RegisterID regT3 = X86::ebx;
-
- static const FPRegisterID fpRegT0 = X86::xmm0;
- static const FPRegisterID fpRegT1 = X86::xmm1;
- static const FPRegisterID fpRegT2 = X86::xmm2;
-#elif PLATFORM_ARM_ARCH(7)
- static const RegisterID returnValueRegister = ARM::r0;
- static const RegisterID cachedResultRegister = ARM::r0;
- static const RegisterID firstArgumentRegister = ARM::r0;
-
- static const RegisterID regT0 = ARM::r0;
- static const RegisterID regT1 = ARM::r1;
- static const RegisterID regT2 = ARM::r2;
- static const RegisterID regT3 = ARM::r4;
-
- static const RegisterID callFrameRegister = ARM::r5;
- static const RegisterID timeoutCheckRegister = ARM::r6;
-
- static const FPRegisterID fpRegT0 = ARM::d0;
- static const FPRegisterID fpRegT1 = ARM::d1;
- static const FPRegisterID fpRegT2 = ARM::d2;
-#else
- #error "JIT not supported on this platform."
-#endif
-
- static const int patchGetByIdDefaultStructure = -1;
+ 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 patchGetByIdDefaultOffset = 256;
+ static const int patchPutByIdDefaultOffset = 256;
public:
- static void compile(JSGlobalData* globalData, CodeBlock* codeBlock)
+ static JITCode compile(VM* vm, CodeBlock* codeBlock, JITCompilationEffort effort, CodePtr* functionEntryArityCheck = 0)
+ {
+ return JIT(vm, codeBlock).privateCompile(functionEntryArityCheck, effort);
+ }
+
+ static void compileClosureCall(VM* vm, CallLinkInfo* callLinkInfo, CodeBlock* callerCodeBlock, CodeBlock* calleeCodeBlock, Structure* expectedStructure, ExecutableBase* expectedExecutable, MacroAssemblerCodePtr codePtr)
{
- JIT jit(globalData, codeBlock);
- jit.privateCompile();
+ JIT jit(vm, callerCodeBlock);
+ jit.m_bytecodeOffset = callLinkInfo->codeOrigin.bytecodeIndex;
+ jit.privateCompileClosureCall(callLinkInfo, calleeCodeBlock, expectedStructure, expectedExecutable, codePtr);
}
- static void compileGetByIdProto(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* structure, Structure* prototypeStructure, size_t cachedOffset, ReturnAddressPtr returnAddress)
+ static void compileGetByIdProto(VM* vm, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* structure, Structure* prototypeStructure, const Identifier& ident, const PropertySlot& slot, PropertyOffset cachedOffset, ReturnAddressPtr returnAddress)
{
- JIT jit(globalData, codeBlock);
- jit.privateCompileGetByIdProto(stubInfo, structure, prototypeStructure, cachedOffset, returnAddress, callFrame);
+ JIT jit(vm, codeBlock);
+ jit.m_bytecodeOffset = stubInfo->bytecodeIndex;
+ jit.privateCompileGetByIdProto(stubInfo, structure, prototypeStructure, ident, slot, cachedOffset, returnAddress, callFrame);
}
- static void compileGetByIdSelfList(JSGlobalData* globalData, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* polymorphicStructures, int currentIndex, Structure* structure, size_t cachedOffset)
+ static void compileGetByIdSelfList(VM* vm, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* polymorphicStructures, int currentIndex, Structure* structure, const Identifier& ident, const PropertySlot& slot, PropertyOffset cachedOffset)
{
- JIT jit(globalData, codeBlock);
- jit.privateCompileGetByIdSelfList(stubInfo, polymorphicStructures, currentIndex, structure, cachedOffset);
+ JIT jit(vm, codeBlock);
+ jit.m_bytecodeOffset = stubInfo->bytecodeIndex;
+ jit.privateCompileGetByIdSelfList(stubInfo, polymorphicStructures, currentIndex, structure, ident, slot, cachedOffset);
}
- static void compileGetByIdProtoList(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* prototypeStructureList, int currentIndex, Structure* structure, Structure* prototypeStructure, size_t cachedOffset)
+ static void compileGetByIdProtoList(VM* vm, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* prototypeStructureList, int currentIndex, Structure* structure, Structure* prototypeStructure, const Identifier& ident, const PropertySlot& slot, PropertyOffset cachedOffset)
{
- JIT jit(globalData, codeBlock);
- jit.privateCompileGetByIdProtoList(stubInfo, prototypeStructureList, currentIndex, structure, prototypeStructure, cachedOffset, callFrame);
+ JIT jit(vm, codeBlock);
+ jit.m_bytecodeOffset = stubInfo->bytecodeIndex;
+ jit.privateCompileGetByIdProtoList(stubInfo, prototypeStructureList, currentIndex, structure, prototypeStructure, ident, slot, cachedOffset, callFrame);
}
- static void compileGetByIdChainList(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* prototypeStructureList, int currentIndex, Structure* structure, StructureChain* chain, size_t count, size_t cachedOffset)
+ static void compileGetByIdChainList(VM* vm, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* prototypeStructureList, int currentIndex, Structure* structure, StructureChain* chain, size_t count, const Identifier& ident, const PropertySlot& slot, PropertyOffset cachedOffset)
{
- JIT jit(globalData, codeBlock);
- jit.privateCompileGetByIdChainList(stubInfo, prototypeStructureList, currentIndex, structure, chain, count, cachedOffset, callFrame);
+ JIT jit(vm, codeBlock);
+ jit.m_bytecodeOffset = stubInfo->bytecodeIndex;
+ jit.privateCompileGetByIdChainList(stubInfo, prototypeStructureList, currentIndex, structure, chain, count, ident, slot, cachedOffset, callFrame);
}
- static void compileGetByIdChain(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* structure, StructureChain* chain, size_t count, size_t cachedOffset, ReturnAddressPtr returnAddress)
+ static void compileGetByIdChain(VM* vm, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* structure, StructureChain* chain, size_t count, const Identifier& ident, const PropertySlot& slot, PropertyOffset cachedOffset, ReturnAddressPtr returnAddress)
{
- JIT jit(globalData, codeBlock);
- jit.privateCompileGetByIdChain(stubInfo, structure, chain, count, cachedOffset, returnAddress, callFrame);
+ JIT jit(vm, codeBlock);
+ jit.m_bytecodeOffset = stubInfo->bytecodeIndex;
+ jit.privateCompileGetByIdChain(stubInfo, structure, chain, count, ident, slot, cachedOffset, returnAddress, callFrame);
}
- static void compilePutByIdTransition(JSGlobalData* globalData, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* oldStructure, Structure* newStructure, size_t cachedOffset, StructureChain* chain, ReturnAddressPtr returnAddress)
+ static void compilePutByIdTransition(VM* vm, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* oldStructure, Structure* newStructure, PropertyOffset cachedOffset, StructureChain* chain, ReturnAddressPtr returnAddress, bool direct)
+ {
+ JIT jit(vm, codeBlock);
+ jit.m_bytecodeOffset = stubInfo->bytecodeIndex;
+ jit.privateCompilePutByIdTransition(stubInfo, oldStructure, newStructure, cachedOffset, chain, returnAddress, direct);
+ }
+
+ 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 compilePutByVal(VM* vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, JITArrayMode arrayMode)
{
- JIT jit(globalData, codeBlock);
- jit.privateCompilePutByIdTransition(stubInfo, oldStructure, newStructure, cachedOffset, chain, returnAddress);
+ JIT jit(vm, codeBlock);
+ jit.m_bytecodeOffset = byValInfo->bytecodeIndex;
+ jit.privateCompilePutByVal(byValInfo, returnAddress, arrayMode);
}
- static void compileCTIMachineTrampolines(JSGlobalData* globalData, RefPtr<ExecutablePool>* executablePool, CodePtr* ctiStringLengthTrampoline, CodePtr* ctiVirtualCallPreLink, CodePtr* ctiVirtualCallLink, CodePtr* ctiVirtualCall, CodePtr* ctiNativeCallThunk)
+ static CodeRef compileCTINativeCall(VM* vm, NativeFunction func)
{
- JIT jit(globalData);
- jit.privateCompileCTIMachineTrampolines(executablePool, globalData, ctiStringLengthTrampoline, ctiVirtualCallPreLink, ctiVirtualCallLink, ctiVirtualCall, ctiNativeCallThunk);
+ if (!vm->canUseJIT()) {
+#if ENABLE(LLINT)
+ return CodeRef::createLLIntCodeRef(llint_native_call_trampoline);
+#else
+ return CodeRef();
+#endif
+ }
+ JIT jit(vm, 0);
+ return jit.privateCompileCTINativeCall(vm, func);
}
- 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*);
+ static void resetPatchGetById(RepatchBuffer&, StructureStubInfo*);
+ static void resetPatchPutById(RepatchBuffer&, StructureStubInfo*);
+ static void patchGetByIdSelf(CodeBlock*, StructureStubInfo*, Structure*, PropertyOffset cachedOffset, ReturnAddressPtr);
+ static void patchPutByIdReplace(CodeBlock*, StructureStubInfo*, Structure*, PropertyOffset cachedOffset, ReturnAddressPtr, bool direct);
- static void compilePatchGetArrayLength(JSGlobalData* globalData, CodeBlock* codeBlock, ReturnAddressPtr returnAddress)
+ static void compilePatchGetArrayLength(VM* vm, CodeBlock* codeBlock, ReturnAddressPtr returnAddress)
{
- JIT jit(globalData, codeBlock);
+ JIT jit(vm, codeBlock);
+#if ENABLE(DFG_JIT)
+ // Force profiling to be enabled during stub generation.
+ jit.m_canBeOptimized = true;
+ jit.m_canBeOptimizedOrInlined = true;
+ jit.m_shouldEmitProfiling = true;
+#endif // ENABLE(DFG_JIT)
return jit.privateCompilePatchGetArrayLength(returnAddress);
}
- static void linkCall(JSFunction* callee, CodeBlock* callerCodeBlock, CodeBlock* calleeCodeBlock, JITCode&, CallLinkInfo*, int callerArgCount, JSGlobalData*);
- static void unlinkCall(CallLinkInfo*);
+ static void linkFor(JSFunction* callee, CodeBlock* callerCodeBlock, CodeBlock* calleeCodeBlock, CodePtr, CallLinkInfo*, VM*, CodeSpecializationKind);
+ static void linkSlowCall(CodeBlock* callerCodeBlock, CallLinkInfo*);
private:
- struct JSRInfo {
- DataLabelPtr storeLocation;
- Label target;
-
- JSRInfo(DataLabelPtr storeLocation, Label targetLocation)
- : storeLocation(storeLocation)
- , target(targetLocation)
- {
- }
- };
-
- JIT(JSGlobalData*, CodeBlock* = 0);
+ JIT(VM*, CodeBlock* = 0);
void privateCompileMainPass();
void privateCompileLinkPass();
void privateCompileSlowCases();
- void 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, CodePtr* ctiStringLengthTrampoline, CodePtr* ctiVirtualCallPreLink, CodePtr* ctiVirtualCallLink, CodePtr* ctiVirtualCall, CodePtr* ctiNativeCallThunk);
+ JITCode privateCompile(CodePtr* functionEntryArityCheck, JITCompilationEffort);
+
+ void privateCompileClosureCall(CallLinkInfo*, CodeBlock* calleeCodeBlock, Structure*, ExecutableBase*, MacroAssemblerCodePtr);
+
+ void privateCompileGetByIdProto(StructureStubInfo*, Structure*, Structure* prototypeStructure, const Identifier&, const PropertySlot&, PropertyOffset cachedOffset, ReturnAddressPtr, CallFrame*);
+ void privateCompileGetByIdSelfList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, const Identifier&, const PropertySlot&, PropertyOffset cachedOffset);
+ void privateCompileGetByIdProtoList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, Structure* prototypeStructure, const Identifier&, const PropertySlot&, PropertyOffset cachedOffset, CallFrame*);
+ void privateCompileGetByIdChainList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, StructureChain*, size_t count, const Identifier&, const PropertySlot&, PropertyOffset cachedOffset, CallFrame*);
+ void privateCompileGetByIdChain(StructureStubInfo*, Structure*, StructureChain*, size_t count, const Identifier&, const PropertySlot&, PropertyOffset cachedOffset, ReturnAddressPtr, CallFrame*);
+ void privateCompilePutByIdTransition(StructureStubInfo*, Structure*, Structure*, PropertyOffset cachedOffset, StructureChain*, ReturnAddressPtr, bool direct);
+
+ void privateCompileGetByVal(ByValInfo*, ReturnAddressPtr, JITArrayMode);
+ void privateCompilePutByVal(ByValInfo*, ReturnAddressPtr, JITArrayMode);
+
+ Label privateCompileCTINativeCall(VM*, bool isConstruct = false);
+ CodeRef privateCompileCTINativeCall(VM*, NativeFunction);
void privateCompilePatchGetArrayLength(ReturnAddressPtr returnAddress);
+ static bool isDirectPutById(StructureStubInfo*);
+
void addSlowCase(Jump);
void addSlowCase(JumpList);
+ void addSlowCase();
void addJump(Jump, int);
void emitJumpSlowToHot(Jump, int);
- void compileOpCall(OpcodeID, Instruction* 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*);
+ void compileOpCall(OpcodeID, Instruction*, unsigned callLinkInfoIndex);
+ void compileOpCallSlowCase(OpcodeID, Instruction*, Vector<SlowCaseEntry>::iterator&, unsigned callLinkInfoIndex);
+ void compileLoadVarargs(Instruction*);
+ void compileCallEval();
+ void compileCallEvalSlowCase(Vector<SlowCaseEntry>::iterator&);
enum CompileOpStrictEqType { OpStrictEq, OpNStrictEq };
void compileOpStrictEq(Instruction* instruction, CompileOpStrictEqType type);
+ bool isOperandConstantImmediateDouble(unsigned src);
+
+ void emitLoadDouble(int index, FPRegisterID value);
+ void emitLoadInt32ToDouble(int index, FPRegisterID value);
+ Jump emitJumpIfNotObject(RegisterID structureReg);
+
+ Jump addStructureTransitionCheck(JSCell*, Structure*, StructureStubInfo*, RegisterID scratch);
+ void addStructureTransitionCheck(JSCell*, Structure*, StructureStubInfo*, JumpList& failureCases, RegisterID scratch);
+ void testPrototype(JSValue, JumpList& failureCases, StructureStubInfo*);
+
+ enum WriteBarrierMode { UnconditionalWriteBarrier, ShouldFilterImmediates };
+ // value register in write barrier is used before any scratch registers
+ // so may safely be the same as either of the scratch registers.
+ void emitWriteBarrier(RegisterID owner, RegisterID valueTag, RegisterID scratch, RegisterID scratch2, WriteBarrierMode, WriteBarrierUseKind);
+ void emitWriteBarrier(JSCell* owner, RegisterID value, RegisterID scratch, WriteBarrierMode, WriteBarrierUseKind);
+
+ template<typename StructureType> // StructureType can be RegisterID or ImmPtr.
+ void emitAllocateJSObject(RegisterID allocator, StructureType, RegisterID result, RegisterID scratch);
+
+#if ENABLE(VALUE_PROFILER)
+ // This assumes that the value to profile is in regT0 and that regT3 is available for
+ // scratch.
+ void emitValueProfilingSite(ValueProfile*);
+ void emitValueProfilingSite(unsigned bytecodeOffset);
+ void emitValueProfilingSite();
+#else
+ void emitValueProfilingSite(unsigned) { }
+ void emitValueProfilingSite() { }
+#endif
+ void emitArrayProfilingSite(RegisterID structureAndIndexingType, RegisterID scratch, ArrayProfile*);
+ void emitArrayProfilingSiteForBytecodeIndex(RegisterID structureAndIndexingType, RegisterID scratch, unsigned bytecodeIndex);
+ void emitArrayProfileStoreToHoleSpecialCase(ArrayProfile*);
+ void emitArrayProfileOutOfBoundsSpecialCase(ArrayProfile*);
+
+ JITArrayMode chooseArrayMode(ArrayProfile*);
+
+ // Property is in regT1, base is in regT0. regT2 contains indexing type.
+ // Property is int-checked and zero extended. Base is cell checked.
+ // Structure is already profiled. Returns the slow cases. Fall-through
+ // case contains result in regT0, and it is not yet profiled.
+ JumpList emitInt32GetByVal(Instruction* instruction, PatchableJump& badType) { return emitContiguousGetByVal(instruction, badType, Int32Shape); }
+ JumpList emitDoubleGetByVal(Instruction*, PatchableJump& badType);
+ JumpList emitContiguousGetByVal(Instruction*, PatchableJump& badType, IndexingType expectedShape = ContiguousShape);
+ JumpList emitArrayStorageGetByVal(Instruction*, PatchableJump& badType);
+ JumpList emitIntTypedArrayGetByVal(Instruction*, PatchableJump& badType, const TypedArrayDescriptor&, size_t elementSize, TypedArraySignedness);
+ JumpList emitFloatTypedArrayGetByVal(Instruction*, PatchableJump& badType, const TypedArrayDescriptor&, size_t elementSize);
+
+ // Property is in regT0, base is in regT0. regT2 contains indecing type.
+ // The value to store is not yet loaded. Property is int-checked and
+ // zero-extended. Base is cell checked. Structure is already profiled.
+ // returns the slow cases.
+ JumpList emitInt32PutByVal(Instruction* currentInstruction, PatchableJump& badType)
+ {
+ return emitGenericContiguousPutByVal(currentInstruction, badType, Int32Shape);
+ }
+ JumpList emitDoublePutByVal(Instruction* currentInstruction, PatchableJump& badType)
+ {
+ return emitGenericContiguousPutByVal(currentInstruction, badType, DoubleShape);
+ }
+ JumpList emitContiguousPutByVal(Instruction* currentInstruction, PatchableJump& badType)
+ {
+ return emitGenericContiguousPutByVal(currentInstruction, badType);
+ }
+ JumpList emitGenericContiguousPutByVal(Instruction*, PatchableJump& badType, IndexingType indexingShape = ContiguousShape);
+ JumpList emitArrayStoragePutByVal(Instruction*, PatchableJump& badType);
+ JumpList emitIntTypedArrayPutByVal(Instruction*, PatchableJump& badType, const TypedArrayDescriptor&, size_t elementSize, TypedArraySignedness, TypedArrayRounding);
+ JumpList emitFloatTypedArrayPutByVal(Instruction*, PatchableJump& badType, const TypedArrayDescriptor&, size_t elementSize);
+
+ enum FinalObjectMode { MayBeFinal, KnownNotFinal };
#if USE(JSVALUE32_64)
- Address tagFor(unsigned index, RegisterID base = callFrameRegister);
- Address payloadFor(unsigned index, RegisterID base = callFrameRegister);
- Address addressFor(unsigned index, RegisterID base = callFrameRegister);
-
bool getOperandConstantImmediateInt(unsigned op1, unsigned op2, unsigned& op, int32_t& constant);
- bool isOperandConstantImmediateDouble(unsigned src);
- void emitLoadTag(unsigned index, RegisterID tag);
- void emitLoadPayload(unsigned index, RegisterID payload);
+ void emitLoadTag(int index, RegisterID tag);
+ void emitLoadPayload(int 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 emitLoadDouble(unsigned index, FPRegisterID value);
- void emitLoadInt32ToDouble(unsigned index, FPRegisterID value);
-
- 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 emitLoad(int index, RegisterID tag, RegisterID payload, RegisterID base = callFrameRegister);
+ void emitLoad2(int index1, RegisterID tag1, RegisterID payload1, int index2, RegisterID tag2, RegisterID payload2);
+
+ void emitStore(int index, RegisterID tag, RegisterID payload, RegisterID base = callFrameRegister);
+ void emitStore(int index, const JSValue constant, RegisterID base = callFrameRegister);
+ void emitStoreInt32(int index, RegisterID payload, bool indexIsInt32 = false);
+ void emitStoreInt32(int index, TrustedImm32 payload, bool indexIsInt32 = false);
+ void emitStoreAndMapInt32(int index, RegisterID tag, RegisterID payload, bool indexIsInt32, size_t opcodeLength);
+ void emitStoreCell(int index, RegisterID payload, bool indexIsCell = false);
+ void emitStoreBool(int index, RegisterID payload, bool indexIsBool = false);
+ void emitStoreDouble(int index, FPRegisterID value);
+
+ bool isLabeled(unsigned bytecodeOffset);
+ void map(unsigned bytecodeOffset, int virtualRegisterIndex, RegisterID tag, RegisterID payload);
void unmap(RegisterID);
void unmap();
- bool isMapped(unsigned virtualRegisterIndex);
- bool getMappedPayload(unsigned virtualRegisterIndex, RegisterID& payload);
- bool getMappedTag(unsigned virtualRegisterIndex, RegisterID& tag);
+ bool isMapped(int virtualRegisterIndex);
+ bool getMappedPayload(int virtualRegisterIndex, RegisterID& payload);
+ bool getMappedTag(int virtualRegisterIndex, RegisterID& tag);
+
+ void emitJumpSlowCaseIfNotJSCell(int virtualRegisterIndex);
+ void emitJumpSlowCaseIfNotJSCell(int virtualRegisterIndex, RegisterID tag);
- void 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 compilePutDirectOffset(RegisterID base, RegisterID valueTag, RegisterID valuePayload, Structure* structure, size_t cachedOffset);
+ void compileGetByIdHotPath(Identifier*);
+ void compileGetByIdSlowCase(int resultVReg, int baseVReg, Identifier*, Vector<SlowCaseEntry>::iterator&);
+ void compileGetDirectOffset(RegisterID base, RegisterID resultTag, RegisterID resultPayload, PropertyOffset cachedOffset);
+ void compileGetDirectOffset(JSObject* base, RegisterID resultTag, RegisterID resultPayload, PropertyOffset cachedOffset);
+ void compileGetDirectOffset(RegisterID base, RegisterID resultTag, RegisterID resultPayload, RegisterID offset, FinalObjectMode = MayBeFinal);
+ void compilePutDirectOffset(RegisterID base, RegisterID valueTag, RegisterID valuePayload, PropertyOffset cachedOffset);
// Arithmetic opcode helpers
void emitAdd32Constant(unsigned dst, unsigned op, int32_t constant, ResultType opType);
void emitSub32Constant(unsigned dst, unsigned op, int32_t constant, ResultType opType);
void emitBinaryDoubleOp(OpcodeID, unsigned dst, unsigned op1, unsigned op2, OperandTypes, JumpList& notInt32Op1, JumpList& notInt32Op2, bool op1IsInRegisters = true, bool op2IsInRegisters = true);
-#if PLATFORM(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;
-#else
-#error "JSVALUE32_64 not supported on this platform."
+#if CPU(ARM_TRADITIONAL)
+ // sequenceOpCall
+ static const int sequenceOpCallInstructionSpace = 12;
+ static const int sequenceOpCallConstantSpace = 2;
+ // sequenceGetByIdHotPath
+ static const int sequenceGetByIdHotPathInstructionSpace = 36;
+ static const int sequenceGetByIdHotPathConstantSpace = 4;
+ // sequenceGetByIdSlowCase
+ static const int sequenceGetByIdSlowCaseInstructionSpace = 80;
+ static const int sequenceGetByIdSlowCaseConstantSpace = 4;
+ // sequencePutById
+ static const int sequencePutByIdInstructionSpace = 36;
+ static const int sequencePutByIdConstantSpace = 4;
+#elif CPU(SH4)
+ // sequenceOpCall
+ static const int sequenceOpCallInstructionSpace = 12;
+ static const int sequenceOpCallConstantSpace = 2;
+ // sequenceGetByIdHotPath
+ static const int sequenceGetByIdHotPathInstructionSpace = 36;
+ static const int sequenceGetByIdHotPathConstantSpace = 5;
+ // sequenceGetByIdSlowCase
+ static const int sequenceGetByIdSlowCaseInstructionSpace = 38;
+ static const int sequenceGetByIdSlowCaseConstantSpace = 4;
+ // sequencePutById
+ static const int sequencePutByIdInstructionSpace = 36;
+ static const int sequencePutByIdConstantSpace = 5;
#endif
#else // USE(JSVALUE32_64)
+ /* This function is deprecated. */
+ void emitGetJITStubArg(unsigned argumentNumber, RegisterID dst);
+
void emitGetVirtualRegister(int src, RegisterID dst);
void emitGetVirtualRegisters(int src1, RegisterID dst1, int src2, RegisterID dst2);
void emitPutVirtualRegister(unsigned dst, RegisterID from = regT0);
+ void emitStoreCell(unsigned dst, RegisterID payload, bool /* only used in JSValue32_64 */ = false)
+ {
+ emitPutVirtualRegister(dst, payload);
+ }
int32_t getConstantOperandImmediateInt(unsigned src);
- void 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);
+ Jump emitJumpIfImmediateInteger(RegisterID);
+ Jump emitJumpIfNotImmediateInteger(RegisterID);
+ 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);
- void compileBinaryArithOpSlowCase(OpcodeID, Vector<SlowCaseEntry>::iterator&, unsigned dst, unsigned src1, unsigned src2, OperandTypes opi);
+ void compileBinaryArithOpSlowCase(OpcodeID, Vector<SlowCaseEntry>::iterator&, unsigned dst, unsigned src1, unsigned src2, OperandTypes, bool op1HasImmediateIntFastCase, bool op2HasImmediateIntFastCase);
+
+ void compileGetByIdHotPath(int baseVReg, Identifier*);
+ void compileGetByIdSlowCase(int resultVReg, int baseVReg, Identifier*, Vector<SlowCaseEntry>::iterator&);
+ void compileGetDirectOffset(RegisterID base, RegisterID result, PropertyOffset cachedOffset);
+ void compileGetDirectOffset(JSObject* base, RegisterID result, PropertyOffset cachedOffset);
+ void compileGetDirectOffset(RegisterID base, RegisterID result, RegisterID offset, RegisterID scratch, FinalObjectMode = MayBeFinal);
+ void compilePutDirectOffset(RegisterID base, RegisterID value, PropertyOffset cachedOffset);
+
+#endif // USE(JSVALUE32_64)
+
+#if (defined(ASSEMBLER_HAS_CONSTANT_POOL) && ASSEMBLER_HAS_CONSTANT_POOL)
+#define BEGIN_UNINTERRUPTED_SEQUENCE(name) do { beginUninterruptedSequence(name ## InstructionSpace, name ## ConstantSpace); } while (false)
+#define END_UNINTERRUPTED_SEQUENCE_FOR_PUT(name, dst) do { endUninterruptedSequence(name ## InstructionSpace, name ## ConstantSpace, dst); } while (false)
+#define END_UNINTERRUPTED_SEQUENCE(name) END_UNINTERRUPTED_SEQUENCE_FOR_PUT(name, 0)
+
+ void beginUninterruptedSequence(int, int);
+ void endUninterruptedSequence(int, int, int);
-#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 compilePutDirectOffset(RegisterID base, RegisterID value, Structure* structure, size_t cachedOffset);
-
-#if PLATFORM(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 = 66;
-#else
- static const int patchOffsetGetByIdSlowCaseCall = 44;
-#endif
- static const int patchOffsetOpCallCompareToJump = 9;
-
- static const int patchOffsetMethodCheckProtoObj = 20;
- static const int patchOffsetMethodCheckProtoStruct = 30;
- static const int patchOffsetMethodCheckPutFunction = 50;
-#elif PLATFORM(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 PLATFORM_ARM_ARCH(7)
- // 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 = 12;
- static const int patchOffsetPutByIdPropertyMapOffset = 40;
- // 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 = 12;
- static const int patchOffsetGetByIdPropertyMapOffset = 40;
- static const int patchOffsetGetByIdPutResult = 44;
-#if ENABLE(OPCODE_SAMPLING)
- static const int patchOffsetGetByIdSlowCaseCall = 0; // FIMXE
#else
- static const int patchOffsetGetByIdSlowCaseCall = 28;
+#define BEGIN_UNINTERRUPTED_SEQUENCE(name)
+#define END_UNINTERRUPTED_SEQUENCE(name)
+#define END_UNINTERRUPTED_SEQUENCE_FOR_PUT(name, dst)
#endif
- static const int patchOffsetOpCallCompareToJump = 10;
- static const int patchOffsetMethodCheckProtoObj = 18;
- static const int patchOffsetMethodCheckProtoStruct = 28;
- static const int patchOffsetMethodCheckPutFunction = 46;
-#endif
-#endif // USE(JSVALUE32_64)
+ void emit_compareAndJump(OpcodeID, unsigned op1, unsigned op2, unsigned target, RelationalCondition);
+ void emit_compareAndJumpSlow(unsigned op1, unsigned op2, unsigned target, DoubleCondition, int (JIT_STUB *stub)(STUB_ARGS_DECLARATION), bool invert, Vector<SlowCaseEntry>::iterator&);
void emit_op_add(Instruction*);
void emit_op_bitand(Instruction*);
- void emit_op_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_call_put_result(Instruction*);
void emit_op_catch(Instruction*);
void emit_op_construct(Instruction*);
- void emit_op_construct_verify(Instruction*);
+ void emit_op_get_callee(Instruction*);
+ void emit_op_create_this(Instruction*);
void emit_op_convert_this(Instruction*);
void emit_op_create_arguments(Instruction*);
void emit_op_debug(Instruction*);
void emit_op_div(Instruction*);
void emit_op_end(Instruction*);
void emit_op_enter(Instruction*);
- void emit_op_enter_with_activation(Instruction*);
+ void emit_op_create_activation(Instruction*);
void emit_op_eq(Instruction*);
void emit_op_eq_null(Instruction*);
void emit_op_get_by_id(Instruction*);
+ void emit_op_get_arguments_length(Instruction*);
void emit_op_get_by_val(Instruction*);
- void emit_op_get_global_var(Instruction*);
- void emit_op_get_scoped_var(Instruction*);
- void emit_op_init_arguments(Instruction*);
+ void emit_op_get_argument_by_val(Instruction*);
+ void emit_op_get_by_pname(Instruction*);
+ void emit_op_init_lazy_reg(Instruction*);
+ void emit_op_check_has_instance(Instruction*);
void emit_op_instanceof(Instruction*);
+ void emit_op_is_undefined(Instruction*);
+ void emit_op_is_boolean(Instruction*);
+ void emit_op_is_number(Instruction*);
+ void emit_op_is_string(Instruction*);
void emit_op_jeq_null(Instruction*);
void emit_op_jfalse(Instruction*);
void emit_op_jmp(Instruction*);
- void emit_op_jmp_scopes(Instruction*);
void emit_op_jneq_null(Instruction*);
void emit_op_jneq_ptr(Instruction*);
+ void emit_op_jless(Instruction*);
+ void emit_op_jlesseq(Instruction*);
+ void emit_op_jgreater(Instruction*);
+ void emit_op_jgreatereq(Instruction*);
void emit_op_jnless(Instruction*);
void emit_op_jnlesseq(Instruction*);
- void emit_op_jsr(Instruction*);
+ void emit_op_jngreater(Instruction*);
+ void emit_op_jngreatereq(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_hint(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_neq(Instruction*);
void emit_op_neq_null(Instruction*);
void emit_op_new_array(Instruction*);
- void emit_op_new_error(Instruction*);
+ void emit_op_new_array_with_size(Instruction*);
+ void emit_op_new_array_buffer(Instruction*);
void emit_op_new_func(Instruction*);
void emit_op_new_func_exp(Instruction*);
void emit_op_new_object(Instruction*);
void emit_op_new_regexp(Instruction*);
+ void emit_op_get_pnames(Instruction*);
void emit_op_next_pname(Instruction*);
void emit_op_not(Instruction*);
void emit_op_nstricteq(Instruction*);
void emit_op_pop_scope(Instruction*);
- void emit_op_post_dec(Instruction*);
- void emit_op_post_inc(Instruction*);
- void emit_op_pre_dec(Instruction*);
- void emit_op_pre_inc(Instruction*);
+ void emit_op_dec(Instruction*);
+ void emit_op_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_push_name_scope(Instruction*);
+ void emit_op_push_with_scope(Instruction*);
void emit_op_put_by_id(Instruction*);
void emit_op_put_by_index(Instruction*);
void emit_op_put_by_val(Instruction*);
- void emit_op_put_getter(Instruction*);
- void emit_op_put_global_var(Instruction*);
- void emit_op_put_scoped_var(Instruction*);
- void emit_op_put_setter(Instruction*);
+ void emit_op_put_getter_setter(Instruction*);
+ void emit_op_init_global_const(Instruction*);
+ void emit_op_init_global_const_check(Instruction*);
+ void emit_resolve_operations(ResolveOperations*, const int* base, const int* value);
+ void emitSlow_link_resolve_operations(ResolveOperations*, Vector<SlowCaseEntry>::iterator&);
void emit_op_resolve(Instruction*);
void emit_op_resolve_base(Instruction*);
- void emit_op_resolve_global(Instruction*);
- void emit_op_resolve_skip(Instruction*);
void emit_op_resolve_with_base(Instruction*);
+ void emit_op_resolve_with_this(Instruction*);
+ void emit_op_put_to_base(Instruction*);
void emit_op_ret(Instruction*);
+ void emit_op_ret_object_or_this(Instruction*);
void emit_op_rshift(Instruction*);
- void emit_op_sret(Instruction*);
void emit_op_strcat(Instruction*);
void emit_op_stricteq(Instruction*);
void emit_op_sub(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_throw_static_error(Instruction*);
+ void emit_op_to_number(Instruction*);
void emit_op_to_primitive(Instruction*);
void emit_op_unexpected_load(Instruction*);
+ void emit_op_urshift(Instruction*);
+ void emit_op_get_scoped_var(Instruction*);
+ void emit_op_put_scoped_var(Instruction*);
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_create_this(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_div(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_eq(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_get_by_id(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_get_arguments_length(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_get_by_val(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_get_argument_by_val(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_get_by_pname(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_check_has_instance(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_instanceof(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_jfalse(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_jless(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_jlesseq(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_jgreater(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_jgreatereq(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_jnless(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_jnlesseq(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_jngreater(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_jngreatereq(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_jtrue(Instruction*, Vector<SlowCaseEntry>::iterator&);
- void emitSlow_op_loop_if_less(Instruction*, Vector<SlowCaseEntry>::iterator&);
- void emitSlow_op_loop_if_lesseq(Instruction*, Vector<SlowCaseEntry>::iterator&);
- void emitSlow_op_loop_if_true(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_loop_hint(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_new_object(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_not(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_nstricteq(Instruction*, Vector<SlowCaseEntry>::iterator&);
- void emitSlow_op_post_dec(Instruction*, Vector<SlowCaseEntry>::iterator&);
- void emitSlow_op_post_inc(Instruction*, Vector<SlowCaseEntry>::iterator&);
- void emitSlow_op_pre_dec(Instruction*, Vector<SlowCaseEntry>::iterator&);
- void emitSlow_op_pre_inc(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_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_resolve_global(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_init_global_const_check(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_rshift(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_stricteq(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_sub(Instruction*, Vector<SlowCaseEntry>::iterator&);
- void emitSlow_op_to_jsnumber(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_to_number(Instruction*, Vector<SlowCaseEntry>::iterator&);
void emitSlow_op_to_primitive(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_urshift(Instruction*, Vector<SlowCaseEntry>::iterator&);
- /* These functions are deprecated: Please use JITStubCall instead. */
- void emitPutJITStubArg(RegisterID src, unsigned argumentNumber);
-#if USE(JSVALUE32_64)
- 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 emitSlow_op_resolve(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_resolve_base(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_resolve_with_base(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_resolve_with_this(Instruction*, Vector<SlowCaseEntry>::iterator&);
+ void emitSlow_op_put_to_base(Instruction*, Vector<SlowCaseEntry>::iterator&);
+
+ void emitRightShift(Instruction*, bool isUnsigned);
+ void emitRightShiftSlowCase(Instruction*, Vector<SlowCaseEntry>::iterator&, bool isUnsigned);
void emitInitRegister(unsigned dst);
- void emitPutToCallFrameHeader(RegisterID from, 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);
+ void emitPutIntToCallFrameHeader(RegisterID from, JSStack::CallFrameHeaderEntry);
+ void emitGetFromCallFrameHeaderPtr(JSStack::CallFrameHeaderEntry, RegisterID to, RegisterID from = callFrameRegister);
+ void emitGetFromCallFrameHeader32(JSStack::CallFrameHeaderEntry, RegisterID to, RegisterID from = callFrameRegister);
+#if USE(JSVALUE64)
+ void emitGetFromCallFrameHeader64(JSStack::CallFrameHeaderEntry, RegisterID to, RegisterID from = callFrameRegister);
+#endif
JSValue getConstantOperand(unsigned src);
bool isOperandConstantImmediateInt(unsigned src);
+ bool isOperandConstantImmediateChar(unsigned src);
+
+ bool atJumpTarget();
Jump getSlowCase(Vector<SlowCaseEntry>::iterator& iter)
{
iter->from.link(this);
++iter;
}
- void linkSlowCaseIfNotJSCell(Vector<SlowCaseEntry>::iterator&, int vReg);
+ void linkDummySlowCase(Vector<SlowCaseEntry>::iterator& iter)
+ {
+ ASSERT(!iter->from.isSet());
+ ++iter;
+ }
+ void linkSlowCaseIfNotJSCell(Vector<SlowCaseEntry>::iterator&, int virtualRegisterIndex);
Jump checkStructure(RegisterID reg, Structure* structure);
- void restoreArgumentReference();
void restoreArgumentReferenceForTrampoline();
+ void updateTopCallFrame();
Call emitNakedCall(CodePtr function = CodePtr());
- void preserveReturnAddressAfterCall(RegisterID);
- void restoreReturnAddressBeforeReturn(RegisterID);
- void restoreReturnAddressBeforeReturn(Address);
+ // Loads the character value of a single character string into dst.
+ void emitLoadCharacterString(RegisterID src, RegisterID dst, JumpList& failures);
+
+#if ENABLE(DFG_JIT)
+ void emitEnterOptimizationCheck();
+#else
+ void emitEnterOptimizationCheck() { }
+#endif
- void emitTimeoutCheck();
#ifndef NDEBUG
void printBytecodeOperandTypes(unsigned src1, unsigned src2);
#endif
#endif
#if ENABLE(SAMPLING_COUNTERS)
- void emitCount(AbstractSamplingCounter&, uint32_t = 1);
+ void emitCount(AbstractSamplingCounter&, int32_t = 1);
#endif
#if ENABLE(OPCODE_SAMPLING)
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
+
Interpreter* m_interpreter;
- JSGlobalData* m_globalData;
+ VM* m_vm;
CodeBlock* m_codeBlock;
Vector<CallRecord> m_calls;
Vector<Label> m_labels;
Vector<PropertyStubCompilationInfo> m_propertyAccessCompilationInfo;
+ Vector<ByValCompilationInfo> m_byValCompilationInfo;
Vector<StructureStubCompilationInfo> m_callStructureStubCompilationInfo;
- Vector<MethodCallCompilationInfo> m_methodCallCompilationInfo;
Vector<JumpTable> m_jmpTable;
- unsigned m_bytecodeIndex;
- Vector<JSRInfo> m_jsrSites;
+ unsigned m_bytecodeOffset;
Vector<SlowCaseEntry> m_slowCases;
Vector<SwitchRecord> m_switches;
unsigned m_propertyAccessInstructionIndex;
+ unsigned m_byValInstructionIndex;
unsigned m_globalResolveInfoIndex;
unsigned m_callLinkInfoIndex;
#if USE(JSVALUE32_64)
unsigned m_jumpTargetIndex;
- unsigned m_mappedBytecodeIndex;
- unsigned m_mappedVirtualRegisterIndex;
+ unsigned m_mappedBytecodeOffset;
+ int m_mappedVirtualRegisterIndex;
RegisterID m_mappedTag;
RegisterID m_mappedPayload;
#else
int m_lastResultBytecodeRegister;
+#endif
unsigned m_jumpTargetsPosition;
+
+#ifndef NDEBUG
+#if defined(ASSEMBLER_HAS_CONSTANT_POOL) && ASSEMBLER_HAS_CONSTANT_POOL
+ Label m_uninterruptedInstructionSequenceBegin;
+ int m_uninterruptedConstantSequenceBegin;
+#endif
+#endif
+ OwnPtr<JITDisassembler> m_disassembler;
+ RefPtr<Profiler::Compilation> m_compilation;
+ WeakRandom m_randomGenerator;
+ static CodeRef stringGetByValStubGenerator(VM*);
+
+#if ENABLE(VALUE_PROFILER)
+ bool m_canBeOptimized;
+ bool m_canBeOptimizedOrInlined;
+ bool m_shouldEmitProfiling;
#endif
} JIT_CLASS_ALIGNMENT;
+
} // namespace JSC
#endif // ENABLE(JIT)
projects / apple / javascriptcore.git / blobdiff