mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-26 21:50:53 +00:00
1036 lines
48 KiB
C++
1036 lines
48 KiB
C++
/*
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* Copyright (C) 2008-2019 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if ENABLE(JIT)
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// We've run into some problems where changing the size of the class JIT leads to
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// performance fluctuations. Try forcing alignment in an attempt to stabilize this.
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#if COMPILER(GCC_COMPATIBLE)
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#define JIT_CLASS_ALIGNMENT alignas(32)
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#else
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#define JIT_CLASS_ALIGNMENT
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#endif
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#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));
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#include "ByValInfo.h"
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#include "CodeBlock.h"
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#include "CommonSlowPaths.h"
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#include "JITDisassembler.h"
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#include "JITInlineCacheGenerator.h"
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#include "JITMathIC.h"
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#include "JITRightShiftGenerator.h"
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#include "JSInterfaceJIT.h"
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#include "PCToCodeOriginMap.h"
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#include "UnusedPointer.h"
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namespace JSC {
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enum OpcodeID : unsigned;
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class ArrayAllocationProfile;
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class CallLinkInfo;
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class CodeBlock;
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class FunctionExecutable;
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class JIT;
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class Identifier;
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class Interpreter;
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class BlockDirectory;
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class Register;
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class StructureChain;
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class StructureStubInfo;
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struct Instruction;
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struct OperandTypes;
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struct SimpleJumpTable;
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struct StringJumpTable;
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struct OpPutByVal;
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struct OpPutByValDirect;
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struct OpPutPrivateName;
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struct OpPutToScope;
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template<PtrTag tag>
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struct CallRecord {
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MacroAssembler::Call from;
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BytecodeIndex bytecodeIndex;
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FunctionPtr<tag> callee;
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CallRecord()
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{
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}
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CallRecord(MacroAssembler::Call from, BytecodeIndex bytecodeIndex, FunctionPtr<tag> callee)
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: from(from)
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, bytecodeIndex(bytecodeIndex)
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, callee(callee)
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{
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}
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};
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using FarCallRecord = CallRecord<OperationPtrTag>;
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using NearCallRecord = CallRecord<JSInternalPtrTag>;
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struct JumpTable {
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MacroAssembler::Jump from;
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unsigned toBytecodeOffset;
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JumpTable(MacroAssembler::Jump f, unsigned t)
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: from(f)
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, toBytecodeOffset(t)
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{
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}
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};
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struct SlowCaseEntry {
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MacroAssembler::Jump from;
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BytecodeIndex to;
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SlowCaseEntry(MacroAssembler::Jump f, BytecodeIndex t)
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: from(f)
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, to(t)
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{
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}
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};
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struct SwitchRecord {
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enum Type {
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Immediate,
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Character,
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String
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};
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Type type;
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union {
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SimpleJumpTable* simpleJumpTable;
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StringJumpTable* stringJumpTable;
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} jumpTable;
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BytecodeIndex bytecodeIndex;
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unsigned defaultOffset;
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SwitchRecord(SimpleJumpTable* jumpTable, BytecodeIndex bytecodeIndex, unsigned defaultOffset, Type type)
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: type(type)
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, bytecodeIndex(bytecodeIndex)
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, defaultOffset(defaultOffset)
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{
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this->jumpTable.simpleJumpTable = jumpTable;
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}
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SwitchRecord(StringJumpTable* jumpTable, BytecodeIndex bytecodeIndex, unsigned defaultOffset)
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: type(String)
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, bytecodeIndex(bytecodeIndex)
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, defaultOffset(defaultOffset)
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{
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this->jumpTable.stringJumpTable = jumpTable;
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}
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};
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struct ByValCompilationInfo {
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ByValCompilationInfo() { }
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ByValCompilationInfo(ByValInfo* byValInfo, BytecodeIndex bytecodeIndex, MacroAssembler::PatchableJump notIndexJump, MacroAssembler::PatchableJump badTypeJump, JITArrayMode arrayMode, ArrayProfile* arrayProfile, MacroAssembler::Label doneTarget, MacroAssembler::Label nextHotPathTarget)
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: byValInfo(byValInfo)
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, bytecodeIndex(bytecodeIndex)
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, notIndexJump(notIndexJump)
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, badTypeJump(badTypeJump)
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, arrayMode(arrayMode)
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, arrayProfile(arrayProfile)
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, doneTarget(doneTarget)
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, nextHotPathTarget(nextHotPathTarget)
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{
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}
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ByValCompilationInfo(ByValInfo* byValInfo, BytecodeIndex bytecodeIndex, MacroAssembler::PatchableJump notIndexJump, MacroAssembler::Label doneTarget, MacroAssembler::Label nextHotPathTarget)
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: byValInfo(byValInfo)
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, bytecodeIndex(bytecodeIndex)
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, notIndexJump(notIndexJump)
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, doneTarget(doneTarget)
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, nextHotPathTarget(nextHotPathTarget)
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{
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}
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ByValInfo* byValInfo;
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BytecodeIndex bytecodeIndex;
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MacroAssembler::PatchableJump notIndexJump;
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MacroAssembler::PatchableJump badTypeJump;
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JITArrayMode arrayMode;
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ArrayProfile* arrayProfile;
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MacroAssembler::Label doneTarget;
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MacroAssembler::Label nextHotPathTarget;
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MacroAssembler::Label slowPathTarget;
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MacroAssembler::Call returnAddress;
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};
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struct CallCompilationInfo {
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MacroAssembler::DataLabelPtr hotPathBegin;
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MacroAssembler::Call hotPathOther;
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MacroAssembler::Call callReturnLocation;
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CallLinkInfo* callLinkInfo;
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};
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void ctiPatchCallByReturnAddress(ReturnAddressPtr, FunctionPtr<CFunctionPtrTag> newCalleeFunction);
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class JIT_CLASS_ALIGNMENT JIT : private JSInterfaceJIT {
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friend class JITSlowPathCall;
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friend class JITStubCall;
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using MacroAssembler::Jump;
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using MacroAssembler::JumpList;
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using MacroAssembler::Label;
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static constexpr uintptr_t patchGetByIdDefaultStructure = unusedPointer;
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static constexpr int patchGetByIdDefaultOffset = 0;
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// Magic number - initial offset cannot be representable as a signed 8bit value, or the X86Assembler
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// will compress the displacement, and we may not be able to fit a patched offset.
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static constexpr int patchPutByIdDefaultOffset = 256;
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public:
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JIT(VM&, CodeBlock* = nullptr, BytecodeIndex loopOSREntryBytecodeOffset = BytecodeIndex(0));
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~JIT();
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VM& vm() { return *JSInterfaceJIT::vm(); }
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void compileWithoutLinking(JITCompilationEffort);
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CompilationResult link();
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void doMainThreadPreparationBeforeCompile();
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static CompilationResult compile(VM& vm, CodeBlock* codeBlock, JITCompilationEffort effort, BytecodeIndex bytecodeOffset = BytecodeIndex(0))
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{
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return JIT(vm, codeBlock, bytecodeOffset).privateCompile(effort);
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}
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static void compilePutByVal(const ConcurrentJSLocker& locker, VM& vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, JITArrayMode arrayMode)
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{
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JIT jit(vm, codeBlock);
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jit.m_bytecodeIndex = byValInfo->bytecodeIndex;
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jit.privateCompilePutByVal<OpPutByVal>(locker, byValInfo, returnAddress, arrayMode);
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}
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static void compileDirectPutByVal(const ConcurrentJSLocker& locker, VM& vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, JITArrayMode arrayMode)
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{
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JIT jit(vm, codeBlock);
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jit.m_bytecodeIndex = byValInfo->bytecodeIndex;
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jit.privateCompilePutByVal<OpPutByValDirect>(locker, byValInfo, returnAddress, arrayMode);
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}
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template<typename Op>
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static void compilePutByValWithCachedId(VM& vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, PutKind putKind, CacheableIdentifier propertyName)
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{
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JIT jit(vm, codeBlock);
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jit.m_bytecodeIndex = byValInfo->bytecodeIndex;
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jit.privateCompilePutByValWithCachedId<Op>(byValInfo, returnAddress, putKind, propertyName);
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}
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static void compilePutPrivateNameWithCachedId(VM& vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, CacheableIdentifier propertyName)
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{
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JIT jit(vm, codeBlock);
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jit.m_bytecodeIndex = byValInfo->bytecodeIndex;
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jit.privateCompilePutPrivateNameWithCachedId(byValInfo, returnAddress, propertyName);
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}
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static void compileHasIndexedProperty(VM& vm, CodeBlock* codeBlock, ByValInfo* byValInfo, ReturnAddressPtr returnAddress, JITArrayMode arrayMode)
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{
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JIT jit(vm, codeBlock);
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jit.m_bytecodeIndex = byValInfo->bytecodeIndex;
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jit.privateCompileHasIndexedProperty(byValInfo, returnAddress, arrayMode);
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}
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static unsigned frameRegisterCountFor(CodeBlock*);
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static int stackPointerOffsetFor(CodeBlock*);
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JS_EXPORT_PRIVATE static HashMap<CString, Seconds> compileTimeStats();
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JS_EXPORT_PRIVATE static Seconds totalCompileTime();
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private:
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void privateCompileMainPass();
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void privateCompileLinkPass();
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void privateCompileSlowCases();
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CompilationResult privateCompile(JITCompilationEffort);
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void privateCompileGetByVal(const ConcurrentJSLocker&, ByValInfo*, ReturnAddressPtr, JITArrayMode);
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template<typename Op>
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void privateCompilePutByVal(const ConcurrentJSLocker&, ByValInfo*, ReturnAddressPtr, JITArrayMode);
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template<typename Op>
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void privateCompilePutByValWithCachedId(ByValInfo*, ReturnAddressPtr, PutKind, CacheableIdentifier);
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void privateCompilePutPrivateNameWithCachedId(ByValInfo*, ReturnAddressPtr, CacheableIdentifier);
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void privateCompileHasIndexedProperty(ByValInfo*, ReturnAddressPtr, JITArrayMode);
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void privateCompilePatchGetArrayLength(ReturnAddressPtr returnAddress);
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// Add a call out from JIT code, without an exception check.
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Call appendCall(const FunctionPtr<CFunctionPtrTag> function)
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{
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Call functionCall = call(OperationPtrTag);
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m_farCalls.append(FarCallRecord(functionCall, m_bytecodeIndex, function.retagged<OperationPtrTag>()));
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return functionCall;
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}
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#if OS(WINDOWS) && CPU(X86_64)
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Call appendCallWithSlowPathReturnType(const FunctionPtr<CFunctionPtrTag> function)
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{
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Call functionCall = callWithSlowPathReturnType(OperationPtrTag);
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m_farCalls.append(FarCallRecord(functionCall, m_bytecodeIndex, function.retagged<OperationPtrTag>()));
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return functionCall;
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}
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#endif
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void exceptionCheck(Jump jumpToHandler)
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{
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m_exceptionChecks.append(jumpToHandler);
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}
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void exceptionCheck()
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{
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m_exceptionChecks.append(emitExceptionCheck(vm()));
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}
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void exceptionCheckWithCallFrameRollback()
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{
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m_exceptionChecksWithCallFrameRollback.append(emitExceptionCheck(vm()));
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}
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void privateCompileExceptionHandlers();
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void advanceToNextCheckpoint();
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void emitJumpSlowToHotForCheckpoint(Jump);
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void addSlowCase(Jump);
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void addSlowCase(const JumpList&);
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void addSlowCase();
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void addJump(Jump, int);
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void addJump(const JumpList&, int);
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void emitJumpSlowToHot(Jump, int);
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template<typename Op>
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void compileOpCall(const Instruction*, unsigned callLinkInfoIndex);
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template<typename Op>
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void compileOpCallSlowCase(const Instruction*, Vector<SlowCaseEntry>::iterator&, unsigned callLinkInfoIndex);
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template<typename Op>
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std::enable_if_t<
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Op::opcodeID != op_call_varargs && Op::opcodeID != op_construct_varargs
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&& Op::opcodeID != op_tail_call_varargs && Op::opcodeID != op_tail_call_forward_arguments
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, void> compileSetupFrame(const Op&, CallLinkInfo*);
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template<typename Op>
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std::enable_if_t<
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Op::opcodeID == op_call_varargs || Op::opcodeID == op_construct_varargs
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|| Op::opcodeID == op_tail_call_varargs || Op::opcodeID == op_tail_call_forward_arguments
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, void> compileSetupFrame(const Op&, CallLinkInfo*);
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template<typename Op>
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bool compileTailCall(const Op&, CallLinkInfo*, unsigned callLinkInfoIndex);
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template<typename Op>
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bool compileCallEval(const Op&);
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void compileCallEvalSlowCase(const Instruction*, Vector<SlowCaseEntry>::iterator&);
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template<typename Op>
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void emitPutCallResult(const Op&);
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enum class CompileOpStrictEqType { StrictEq, NStrictEq };
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template<typename Op>
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void compileOpStrictEq(const Instruction*, CompileOpStrictEqType);
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template<typename Op>
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void compileOpStrictEqJump(const Instruction*, CompileOpStrictEqType);
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enum class CompileOpEqType { Eq, NEq };
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void compileOpEqJumpSlow(Vector<SlowCaseEntry>::iterator&, CompileOpEqType, int jumpTarget);
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bool isOperandConstantDouble(VirtualRegister);
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enum WriteBarrierMode { UnconditionalWriteBarrier, ShouldFilterBase, ShouldFilterValue, ShouldFilterBaseAndValue };
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// value register in write barrier is used before any scratch registers
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// so may safely be the same as either of the scratch registers.
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void emitWriteBarrier(VirtualRegister owner, WriteBarrierMode);
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void emitWriteBarrier(VirtualRegister owner, VirtualRegister value, WriteBarrierMode);
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void emitWriteBarrier(JSCell* owner, VirtualRegister value, WriteBarrierMode);
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void emitWriteBarrier(JSCell* owner);
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// This assumes that the value to profile is in regT0 and that regT3 is available for
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// scratch.
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#if USE(JSVALUE64)
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void emitValueProfilingSite(ValueProfile&, GPRReg);
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void emitValueProfilingSite(ValueProfile&, JSValueRegs);
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template<typename Metadata> void emitValueProfilingSite(Metadata&, GPRReg);
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template<typename Metadata> void emitValueProfilingSite(Metadata&, JSValueRegs);
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#else
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void emitValueProfilingSite(ValueProfile&, JSValueRegs);
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template<typename Metadata> void emitValueProfilingSite(Metadata&, JSValueRegs);
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#endif
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void emitValueProfilingSiteIfProfiledOpcode(...);
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template<typename Op>
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std::enable_if_t<std::is_same<decltype(Op::Metadata::m_profile), ValueProfile>::value, void>
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emitValueProfilingSiteIfProfiledOpcode(Op bytecode);
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void emitArrayProfilingSiteWithCell(RegisterID cell, RegisterID indexingType, ArrayProfile*);
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void emitArrayProfileStoreToHoleSpecialCase(ArrayProfile*);
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void emitArrayProfileOutOfBoundsSpecialCase(ArrayProfile*);
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JITArrayMode chooseArrayMode(ArrayProfile*);
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// Property is in regT1, base is in regT0. regT2 contains indexing type.
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// Property is int-checked and zero extended. Base is cell checked.
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// Structure is already profiled. Returns the slow cases. Fall-through
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// case contains result in regT0, and it is not yet profiled.
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JumpList emitInt32Load(const Instruction* instruction, PatchableJump& badType) { return emitContiguousLoad(instruction, badType, Int32Shape); }
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JumpList emitDoubleLoad(const Instruction*, PatchableJump& badType);
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JumpList emitContiguousLoad(const Instruction*, PatchableJump& badType, IndexingType expectedShape = ContiguousShape);
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JumpList emitArrayStorageLoad(const Instruction*, PatchableJump& badType);
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JumpList emitLoadForArrayMode(const Instruction*, JITArrayMode, PatchableJump& badType);
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// Property is in regT1, base is in regT0. regT2 contains indecing type.
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// The value to store is not yet loaded. Property is int-checked and
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// zero-extended. Base is cell checked. Structure is already profiled.
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// returns the slow cases.
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template<typename Op>
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JumpList emitInt32PutByVal(Op bytecode, PatchableJump& badType)
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{
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return emitGenericContiguousPutByVal(bytecode, badType, Int32Shape);
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}
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template<typename Op>
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JumpList emitDoublePutByVal(Op bytecode, PatchableJump& badType)
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{
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return emitGenericContiguousPutByVal(bytecode, badType, DoubleShape);
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}
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template<typename Op>
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JumpList emitContiguousPutByVal(Op bytecode, PatchableJump& badType)
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{
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return emitGenericContiguousPutByVal(bytecode, badType);
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}
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template<typename Op>
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JumpList emitGenericContiguousPutByVal(Op, PatchableJump& badType, IndexingType indexingShape = ContiguousShape);
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template<typename Op>
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JumpList emitArrayStoragePutByVal(Op, PatchableJump& badType);
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template<typename Op>
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JumpList emitIntTypedArrayPutByVal(Op, PatchableJump& badType, TypedArrayType);
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template<typename Op>
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JumpList emitFloatTypedArrayPutByVal(Op, PatchableJump& badType, TypedArrayType);
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template<typename Op>
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ECMAMode ecmaMode(Op);
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// Determines the type of private field access for a bytecode.
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template<typename Op>
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PrivateFieldPutKind privateFieldPutKind(Op);
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// Identifier check helper for GetByVal and PutByVal.
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void emitByValIdentifierCheck(RegisterID cell, RegisterID scratch, CacheableIdentifier, JumpList& slowCases);
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JITPutByIdGenerator emitPutPrivateNameWithCachedId(OpPutPrivateName, CacheableIdentifier, JumpList& doneCases, JumpList& slowCases);
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template<typename Op>
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JITPutByIdGenerator emitPutByValWithCachedId(Op, PutKind, CacheableIdentifier, JumpList& doneCases, JumpList& slowCases);
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enum FinalObjectMode { MayBeFinal, KnownNotFinal };
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void emitGetVirtualRegister(VirtualRegister src, JSValueRegs dst);
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void emitPutVirtualRegister(VirtualRegister dst, JSValueRegs src);
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int32_t getOperandConstantInt(VirtualRegister src);
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double getOperandConstantDouble(VirtualRegister src);
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#if USE(JSVALUE32_64)
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bool getOperandConstantInt(VirtualRegister op1, VirtualRegister op2, VirtualRegister& op, int32_t& constant);
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void emitLoadDouble(VirtualRegister, FPRegisterID value);
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void emitLoadTag(VirtualRegister, RegisterID tag);
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void emitLoadPayload(VirtualRegister, RegisterID payload);
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void emitLoad(const JSValue& v, RegisterID tag, RegisterID payload);
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void emitLoad(VirtualRegister, RegisterID tag, RegisterID payload, RegisterID base = callFrameRegister);
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void emitLoad2(VirtualRegister, RegisterID tag1, RegisterID payload1, VirtualRegister, RegisterID tag2, RegisterID payload2);
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|
|
|
void emitStore(VirtualRegister, RegisterID tag, RegisterID payload, RegisterID base = callFrameRegister);
|
|
void emitStore(VirtualRegister, const JSValue constant, RegisterID base = callFrameRegister);
|
|
void emitStoreInt32(VirtualRegister, RegisterID payload, bool indexIsInt32 = false);
|
|
void emitStoreInt32(VirtualRegister, TrustedImm32 payload, bool indexIsInt32 = false);
|
|
void emitStoreCell(VirtualRegister, RegisterID payload, bool indexIsCell = false);
|
|
void emitStoreBool(VirtualRegister, RegisterID payload, bool indexIsBool = false);
|
|
void emitStoreDouble(VirtualRegister, FPRegisterID value);
|
|
|
|
void emitJumpSlowCaseIfNotJSCell(VirtualRegister);
|
|
void emitJumpSlowCaseIfNotJSCell(VirtualRegister, RegisterID tag);
|
|
void emitJumpSlowCaseIfNotJSCell(RegisterID);
|
|
|
|
void compileGetByIdHotPath(const Identifier*);
|
|
|
|
// Arithmetic opcode helpers
|
|
template <typename Op>
|
|
void emitBinaryDoubleOp(const Instruction *, OperandTypes, JumpList& notInt32Op1, JumpList& notInt32Op2, bool op1IsInRegisters = true, bool op2IsInRegisters = true);
|
|
|
|
#else // USE(JSVALUE32_64)
|
|
void emitGetVirtualRegister(VirtualRegister src, RegisterID dst);
|
|
void emitGetVirtualRegisters(VirtualRegister src1, RegisterID dst1, VirtualRegister src2, RegisterID dst2);
|
|
void emitPutVirtualRegister(VirtualRegister dst, RegisterID from = regT0);
|
|
void emitStoreCell(VirtualRegister dst, RegisterID payload, bool /* only used in JSValue32_64 */ = false)
|
|
{
|
|
emitPutVirtualRegister(dst, payload);
|
|
}
|
|
|
|
Jump emitJumpIfBothJSCells(RegisterID, RegisterID, RegisterID);
|
|
void emitJumpSlowCaseIfJSCell(RegisterID);
|
|
void emitJumpSlowCaseIfNotJSCell(RegisterID);
|
|
void emitJumpSlowCaseIfNotJSCell(RegisterID, VirtualRegister);
|
|
Jump emitJumpIfNotInt(RegisterID, RegisterID, RegisterID scratch);
|
|
PatchableJump emitPatchableJumpIfNotInt(RegisterID);
|
|
void emitJumpSlowCaseIfNotInt(RegisterID);
|
|
void emitJumpSlowCaseIfNotNumber(RegisterID);
|
|
void emitJumpSlowCaseIfNotInt(RegisterID, RegisterID, RegisterID scratch);
|
|
|
|
void compileGetByIdHotPath(VirtualRegister baseReg, const Identifier*);
|
|
|
|
#endif // USE(JSVALUE32_64)
|
|
|
|
template<typename Op>
|
|
void emit_compareAndJump(const Instruction*, RelationalCondition);
|
|
void emit_compareAndJumpImpl(VirtualRegister op1, VirtualRegister op2, unsigned target, RelationalCondition);
|
|
template<typename Op>
|
|
void emit_compareUnsigned(const Instruction*, RelationalCondition);
|
|
void emit_compareUnsignedImpl(VirtualRegister dst, VirtualRegister op1, VirtualRegister op2, RelationalCondition);
|
|
template<typename Op>
|
|
void emit_compareUnsignedAndJump(const Instruction*, RelationalCondition);
|
|
void emit_compareUnsignedAndJumpImpl(VirtualRegister op1, VirtualRegister op2, unsigned target, RelationalCondition);
|
|
template<typename Op, typename SlowOperation>
|
|
void emit_compareAndJumpSlow(const Instruction*, DoubleCondition, SlowOperation, bool invert, Vector<SlowCaseEntry>::iterator&);
|
|
template<typename SlowOperation>
|
|
void emit_compareAndJumpSlowImpl(VirtualRegister op1, VirtualRegister op2, unsigned target, size_t instructionSize, DoubleCondition, SlowOperation, bool invert, Vector<SlowCaseEntry>::iterator&);
|
|
|
|
void assertStackPointerOffset();
|
|
|
|
void emit_op_add(const Instruction*);
|
|
void emit_op_bitand(const Instruction*);
|
|
void emit_op_bitor(const Instruction*);
|
|
void emit_op_bitxor(const Instruction*);
|
|
void emit_op_bitnot(const Instruction*);
|
|
void emit_op_call(const Instruction*);
|
|
void emit_op_tail_call(const Instruction*);
|
|
void emit_op_call_eval(const Instruction*);
|
|
void emit_op_call_varargs(const Instruction*);
|
|
void emit_op_tail_call_varargs(const Instruction*);
|
|
void emit_op_tail_call_forward_arguments(const Instruction*);
|
|
void emit_op_construct_varargs(const Instruction*);
|
|
void emit_op_catch(const Instruction*);
|
|
void emit_op_construct(const Instruction*);
|
|
void emit_op_create_this(const Instruction*);
|
|
void emit_op_to_this(const Instruction*);
|
|
void emit_op_get_argument(const Instruction*);
|
|
void emit_op_argument_count(const Instruction*);
|
|
void emit_op_get_rest_length(const Instruction*);
|
|
void emit_op_check_tdz(const Instruction*);
|
|
void emit_op_identity_with_profile(const Instruction*);
|
|
void emit_op_debug(const Instruction*);
|
|
void emit_op_del_by_id(const Instruction*);
|
|
void emitSlow_op_del_by_id(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emit_op_del_by_val(const Instruction*);
|
|
void emitSlow_op_del_by_val(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emit_op_div(const Instruction*);
|
|
void emit_op_end(const Instruction*);
|
|
void emit_op_enter(const Instruction*);
|
|
void emit_op_get_scope(const Instruction*);
|
|
void emit_op_eq(const Instruction*);
|
|
void emit_op_eq_null(const Instruction*);
|
|
void emit_op_below(const Instruction*);
|
|
void emit_op_beloweq(const Instruction*);
|
|
void emit_op_try_get_by_id(const Instruction*);
|
|
void emit_op_get_by_id(const Instruction*);
|
|
void emit_op_get_by_id_with_this(const Instruction*);
|
|
void emit_op_get_by_id_direct(const Instruction*);
|
|
void emit_op_get_by_val(const Instruction*);
|
|
void emit_op_get_private_name(const Instruction*);
|
|
void emit_op_get_argument_by_val(const Instruction*);
|
|
void emit_op_get_prototype_of(const Instruction*);
|
|
void emit_op_in_by_id(const Instruction*);
|
|
void emit_op_init_lazy_reg(const Instruction*);
|
|
void emit_op_overrides_has_instance(const Instruction*);
|
|
void emit_op_instanceof(const Instruction*);
|
|
void emit_op_instanceof_custom(const Instruction*);
|
|
void emit_op_is_empty(const Instruction*);
|
|
void emit_op_typeof_is_undefined(const Instruction*);
|
|
void emit_op_is_undefined_or_null(const Instruction*);
|
|
void emit_op_is_boolean(const Instruction*);
|
|
void emit_op_is_number(const Instruction*);
|
|
#if USE(BIGINT32)
|
|
void emit_op_is_big_int(const Instruction*);
|
|
#else
|
|
NO_RETURN void emit_op_is_big_int(const Instruction*);
|
|
#endif
|
|
void emit_op_is_object(const Instruction*);
|
|
void emit_op_is_cell_with_type(const Instruction*);
|
|
void emit_op_jeq_null(const Instruction*);
|
|
void emit_op_jfalse(const Instruction*);
|
|
void emit_op_jmp(const Instruction*);
|
|
void emit_op_jneq_null(const Instruction*);
|
|
void emit_op_jundefined_or_null(const Instruction*);
|
|
void emit_op_jnundefined_or_null(const Instruction*);
|
|
void emit_op_jneq_ptr(const Instruction*);
|
|
void emit_op_jless(const Instruction*);
|
|
void emit_op_jlesseq(const Instruction*);
|
|
void emit_op_jgreater(const Instruction*);
|
|
void emit_op_jgreatereq(const Instruction*);
|
|
void emit_op_jnless(const Instruction*);
|
|
void emit_op_jnlesseq(const Instruction*);
|
|
void emit_op_jngreater(const Instruction*);
|
|
void emit_op_jngreatereq(const Instruction*);
|
|
void emit_op_jeq(const Instruction*);
|
|
void emit_op_jneq(const Instruction*);
|
|
void emit_op_jstricteq(const Instruction*);
|
|
void emit_op_jnstricteq(const Instruction*);
|
|
void emit_op_jbelow(const Instruction*);
|
|
void emit_op_jbeloweq(const Instruction*);
|
|
void emit_op_jtrue(const Instruction*);
|
|
void emit_op_loop_hint(const Instruction*);
|
|
void emit_op_check_traps(const Instruction*);
|
|
void emit_op_nop(const Instruction*);
|
|
void emit_op_super_sampler_begin(const Instruction*);
|
|
void emit_op_super_sampler_end(const Instruction*);
|
|
void emit_op_lshift(const Instruction*);
|
|
void emit_op_mod(const Instruction*);
|
|
void emit_op_mov(const Instruction*);
|
|
void emit_op_mul(const Instruction*);
|
|
void emit_op_negate(const Instruction*);
|
|
void emit_op_neq(const Instruction*);
|
|
void emit_op_neq_null(const Instruction*);
|
|
void emit_op_new_array(const Instruction*);
|
|
void emit_op_new_array_with_size(const Instruction*);
|
|
void emit_op_new_func(const Instruction*);
|
|
void emit_op_new_func_exp(const Instruction*);
|
|
void emit_op_new_generator_func(const Instruction*);
|
|
void emit_op_new_generator_func_exp(const Instruction*);
|
|
void emit_op_new_async_func(const Instruction*);
|
|
void emit_op_new_async_func_exp(const Instruction*);
|
|
void emit_op_new_async_generator_func(const Instruction*);
|
|
void emit_op_new_async_generator_func_exp(const Instruction*);
|
|
void emit_op_new_object(const Instruction*);
|
|
void emit_op_new_regexp(const Instruction*);
|
|
void emit_op_not(const Instruction*);
|
|
void emit_op_nstricteq(const Instruction*);
|
|
void emit_op_dec(const Instruction*);
|
|
void emit_op_inc(const Instruction*);
|
|
void emit_op_profile_type(const Instruction*);
|
|
void emit_op_profile_control_flow(const Instruction*);
|
|
void emit_op_get_parent_scope(const Instruction*);
|
|
void emit_op_put_by_id(const Instruction*);
|
|
template<typename Op = OpPutByVal>
|
|
void emit_op_put_by_val(const Instruction*);
|
|
void emit_op_put_by_val_direct(const Instruction*);
|
|
void emit_op_put_private_name(const Instruction*);
|
|
void emit_op_put_getter_by_id(const Instruction*);
|
|
void emit_op_put_setter_by_id(const Instruction*);
|
|
void emit_op_put_getter_setter_by_id(const Instruction*);
|
|
void emit_op_put_getter_by_val(const Instruction*);
|
|
void emit_op_put_setter_by_val(const Instruction*);
|
|
void emit_op_ret(const Instruction*);
|
|
void emit_op_rshift(const Instruction*);
|
|
void emit_op_set_function_name(const Instruction*);
|
|
void emit_op_stricteq(const Instruction*);
|
|
void emit_op_sub(const Instruction*);
|
|
void emit_op_switch_char(const Instruction*);
|
|
void emit_op_switch_imm(const Instruction*);
|
|
void emit_op_switch_string(const Instruction*);
|
|
void emit_op_tear_off_arguments(const Instruction*);
|
|
void emit_op_throw(const Instruction*);
|
|
void emit_op_to_number(const Instruction*);
|
|
void emit_op_to_numeric(const Instruction*);
|
|
void emit_op_to_string(const Instruction*);
|
|
void emit_op_to_object(const Instruction*);
|
|
void emit_op_to_primitive(const Instruction*);
|
|
void emit_op_unexpected_load(const Instruction*);
|
|
void emit_op_unsigned(const Instruction*);
|
|
void emit_op_urshift(const Instruction*);
|
|
template <typename OpCodeType>
|
|
void emit_op_has_structure_propertyImpl(const Instruction*);
|
|
void emit_op_has_enumerable_indexed_property(const Instruction*);
|
|
void emit_op_has_enumerable_structure_property(const Instruction*);
|
|
void emit_op_has_own_structure_property(const Instruction*);
|
|
void emit_op_in_structure_property(const Instruction*);
|
|
void emit_op_get_direct_pname(const Instruction*);
|
|
void emit_op_enumerator_structure_pname(const Instruction*);
|
|
void emit_op_enumerator_generic_pname(const Instruction*);
|
|
void emit_op_get_internal_field(const Instruction*);
|
|
void emit_op_put_internal_field(const Instruction*);
|
|
void emit_op_log_shadow_chicken_prologue(const Instruction*);
|
|
void emit_op_log_shadow_chicken_tail(const Instruction*);
|
|
void emit_op_to_property_key(const Instruction*);
|
|
|
|
void emitSlow_op_add(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_call(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_tail_call(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_call_eval(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_call_varargs(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_tail_call_varargs(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_tail_call_forward_arguments(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_construct_varargs(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_construct(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_eq(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_get_callee(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_try_get_by_id(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_get_by_id(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_get_by_id_with_this(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_get_by_id_direct(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_get_by_val(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_get_private_name(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_get_argument_by_val(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_in_by_id(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_instanceof(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_instanceof_custom(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_jless(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_jlesseq(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_jgreater(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_jgreatereq(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_jnless(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_jnlesseq(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_jngreater(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_jngreatereq(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_jeq(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_jneq(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_jstricteq(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_jnstricteq(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_jtrue(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_loop_hint(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_check_traps(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_mod(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_mul(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_negate(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_neq(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_new_object(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_put_by_id(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_put_by_val(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_put_private_name(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_sub(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_has_enumerable_indexed_property(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
|
|
void emit_op_resolve_scope(const Instruction*);
|
|
void emit_op_get_from_scope(const Instruction*);
|
|
void emit_op_put_to_scope(const Instruction*);
|
|
void emit_op_get_from_arguments(const Instruction*);
|
|
void emit_op_put_to_arguments(const Instruction*);
|
|
void emitSlow_op_get_from_scope(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emitSlow_op_put_to_scope(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
|
|
void emitSlowCaseCall(const Instruction*, Vector<SlowCaseEntry>::iterator&, SlowPathFunction);
|
|
|
|
void emit_op_iterator_open(const Instruction*);
|
|
void emitSlow_op_iterator_open(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
void emit_op_iterator_next(const Instruction*);
|
|
void emitSlow_op_iterator_next(const Instruction*, Vector<SlowCaseEntry>::iterator&);
|
|
|
|
void emitRightShift(const Instruction*, bool isUnsigned);
|
|
void emitRightShiftSlowCase(const Instruction*, Vector<SlowCaseEntry>::iterator&, bool isUnsigned);
|
|
|
|
template<typename Op>
|
|
void emitNewFuncCommon(const Instruction*);
|
|
template<typename Op>
|
|
void emitNewFuncExprCommon(const Instruction*);
|
|
void emitVarInjectionCheck(bool needsVarInjectionChecks);
|
|
void emitResolveClosure(VirtualRegister dst, VirtualRegister scope, bool needsVarInjectionChecks, unsigned depth);
|
|
void emitLoadWithStructureCheck(VirtualRegister scope, Structure** structureSlot);
|
|
#if USE(JSVALUE64)
|
|
void emitGetVarFromPointer(JSValue* operand, GPRReg);
|
|
void emitGetVarFromIndirectPointer(JSValue** operand, GPRReg);
|
|
#else
|
|
void emitGetVarFromIndirectPointer(JSValue** operand, GPRReg tag, GPRReg payload);
|
|
void emitGetVarFromPointer(JSValue* operand, GPRReg tag, GPRReg payload);
|
|
#endif
|
|
void emitGetClosureVar(VirtualRegister scope, uintptr_t operand);
|
|
void emitNotifyWrite(WatchpointSet*);
|
|
void emitNotifyWrite(GPRReg pointerToSet);
|
|
void emitPutGlobalVariable(JSValue* operand, VirtualRegister value, WatchpointSet*);
|
|
void emitPutGlobalVariableIndirect(JSValue** addressOfOperand, VirtualRegister value, WatchpointSet**);
|
|
void emitPutClosureVar(VirtualRegister scope, uintptr_t operand, VirtualRegister value, WatchpointSet*);
|
|
|
|
void emitInitRegister(VirtualRegister);
|
|
|
|
void emitPutIntToCallFrameHeader(RegisterID from, VirtualRegister);
|
|
|
|
JSValue getConstantOperand(VirtualRegister);
|
|
bool isOperandConstantInt(VirtualRegister);
|
|
bool isOperandConstantChar(VirtualRegister);
|
|
|
|
template <typename Op, typename Generator, typename ProfiledFunction, typename NonProfiledFunction>
|
|
void emitMathICFast(JITUnaryMathIC<Generator>*, const Instruction*, ProfiledFunction, NonProfiledFunction);
|
|
template <typename Op, typename Generator, typename ProfiledFunction, typename NonProfiledFunction>
|
|
void emitMathICFast(JITBinaryMathIC<Generator>*, const Instruction*, ProfiledFunction, NonProfiledFunction);
|
|
|
|
template <typename Op, typename Generator, typename ProfiledRepatchFunction, typename ProfiledFunction, typename RepatchFunction>
|
|
void emitMathICSlow(JITBinaryMathIC<Generator>*, const Instruction*, ProfiledRepatchFunction, ProfiledFunction, RepatchFunction);
|
|
template <typename Op, typename Generator, typename ProfiledRepatchFunction, typename ProfiledFunction, typename RepatchFunction>
|
|
void emitMathICSlow(JITUnaryMathIC<Generator>*, const Instruction*, ProfiledRepatchFunction, ProfiledFunction, RepatchFunction);
|
|
|
|
Jump getSlowCase(Vector<SlowCaseEntry>::iterator& iter)
|
|
{
|
|
return iter++->from;
|
|
}
|
|
void linkSlowCase(Vector<SlowCaseEntry>::iterator& iter)
|
|
{
|
|
if (iter->from.isSet())
|
|
iter->from.link(this);
|
|
++iter;
|
|
}
|
|
void linkDummySlowCase(Vector<SlowCaseEntry>::iterator& iter)
|
|
{
|
|
ASSERT(!iter->from.isSet());
|
|
++iter;
|
|
}
|
|
void linkSlowCaseIfNotJSCell(Vector<SlowCaseEntry>::iterator&, VirtualRegister);
|
|
void linkAllSlowCasesForBytecodeIndex(Vector<SlowCaseEntry>& slowCases,
|
|
Vector<SlowCaseEntry>::iterator&, BytecodeIndex bytecodeOffset);
|
|
|
|
void linkAllSlowCases(Vector<SlowCaseEntry>::iterator& iter)
|
|
{
|
|
linkAllSlowCasesForBytecodeIndex(m_slowCases, iter, m_bytecodeIndex);
|
|
}
|
|
|
|
bool hasAnySlowCases(Vector<SlowCaseEntry>& slowCases, Vector<SlowCaseEntry>::iterator&, BytecodeIndex bytecodeOffset);
|
|
bool hasAnySlowCases(Vector<SlowCaseEntry>::iterator& iter)
|
|
{
|
|
return hasAnySlowCases(m_slowCases, iter, m_bytecodeIndex);
|
|
}
|
|
|
|
MacroAssembler::Call appendCallWithExceptionCheck(const FunctionPtr<CFunctionPtrTag>);
|
|
#if OS(WINDOWS) && CPU(X86_64)
|
|
MacroAssembler::Call appendCallWithExceptionCheckAndSlowPathReturnType(const FunctionPtr<CFunctionPtrTag>);
|
|
#endif
|
|
MacroAssembler::Call appendCallWithCallFrameRollbackOnException(const FunctionPtr<CFunctionPtrTag>);
|
|
MacroAssembler::Call appendCallWithExceptionCheckSetJSValueResult(const FunctionPtr<CFunctionPtrTag>, VirtualRegister result);
|
|
template<typename Metadata>
|
|
MacroAssembler::Call appendCallWithExceptionCheckSetJSValueResultWithProfile(Metadata&, const FunctionPtr<CFunctionPtrTag>, VirtualRegister result);
|
|
|
|
template<typename OperationType, typename... Args>
|
|
std::enable_if_t<FunctionTraits<OperationType>::hasResult, MacroAssembler::Call>
|
|
callOperation(OperationType operation, VirtualRegister result, Args... args)
|
|
{
|
|
setupArguments<OperationType>(args...);
|
|
return appendCallWithExceptionCheckSetJSValueResult(operation, result);
|
|
}
|
|
|
|
#if OS(WINDOWS) && CPU(X86_64)
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template<typename OperationType, typename... Args>
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std::enable_if_t<std::is_same<typename FunctionTraits<OperationType>::ResultType, SlowPathReturnType>::value, MacroAssembler::Call>
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callOperation(OperationType operation, Args... args)
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{
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setupArguments<OperationType>(args...);
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return appendCallWithExceptionCheckAndSlowPathReturnType(operation);
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}
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template<typename Type>
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struct is64BitType {
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static constexpr bool value = sizeof(Type) <= 8;
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};
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template<>
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struct is64BitType<void> {
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static constexpr bool value = true;
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};
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template<typename OperationType, typename... Args>
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std::enable_if_t<!std::is_same<typename FunctionTraits<OperationType>::ResultType, SlowPathReturnType>::value, MacroAssembler::Call>
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callOperation(OperationType operation, Args... args)
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{
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static_assert(is64BitType<typename FunctionTraits<OperationType>::ResultType>::value, "Win64 cannot use standard call when return type is larger than 64 bits.");
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setupArguments<OperationType>(args...);
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return appendCallWithExceptionCheck(operation);
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}
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#else // OS(WINDOWS) && CPU(X86_64)
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template<typename OperationType, typename... Args>
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MacroAssembler::Call callOperation(OperationType operation, Args... args)
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{
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setupArguments<OperationType>(args...);
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return appendCallWithExceptionCheck(operation);
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}
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#endif // OS(WINDOWS) && CPU(X86_64)
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template<typename Metadata, typename OperationType, typename... Args>
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std::enable_if_t<FunctionTraits<OperationType>::hasResult, MacroAssembler::Call>
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callOperationWithProfile(Metadata& metadata, OperationType operation, VirtualRegister result, Args... args)
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{
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setupArguments<OperationType>(args...);
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return appendCallWithExceptionCheckSetJSValueResultWithProfile(metadata, operation, result);
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}
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template<typename OperationType, typename... Args>
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MacroAssembler::Call callOperationWithResult(OperationType operation, JSValueRegs resultRegs, Args... args)
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{
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setupArguments<OperationType>(args...);
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auto result = appendCallWithExceptionCheck(operation);
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setupResults(resultRegs);
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return result;
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}
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template<typename OperationType, typename... Args>
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MacroAssembler::Call callOperationNoExceptionCheck(OperationType operation, Args... args)
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{
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setupArguments<OperationType>(args...);
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updateTopCallFrame();
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return appendCall(operation);
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}
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template<typename OperationType, typename... Args>
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MacroAssembler::Call callOperationWithCallFrameRollbackOnException(OperationType operation, Args... args)
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{
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setupArguments<OperationType>(args...);
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return appendCallWithCallFrameRollbackOnException(operation);
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}
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enum class ProfilingPolicy {
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ShouldEmitProfiling,
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NoProfiling
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};
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template<typename Op, typename SnippetGenerator>
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void emitBitBinaryOpFastPath(const Instruction* currentInstruction, ProfilingPolicy shouldEmitProfiling = ProfilingPolicy::NoProfiling);
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void emitRightShiftFastPath(const Instruction* currentInstruction, OpcodeID);
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template<typename Op>
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void emitRightShiftFastPath(const Instruction* currentInstruction, JITRightShiftGenerator::ShiftType);
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void updateTopCallFrame();
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Call emitNakedNearCall(CodePtr<NoPtrTag> function = CodePtr<NoPtrTag>());
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Call emitNakedNearTailCall(CodePtr<NoPtrTag> function = CodePtr<NoPtrTag>());
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// Loads the character value of a single character string into dst.
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void emitLoadCharacterString(RegisterID src, RegisterID dst, JumpList& failures);
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int jumpTarget(const Instruction*, int target);
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#if ENABLE(DFG_JIT)
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void emitEnterOptimizationCheck();
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#else
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void emitEnterOptimizationCheck() { }
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#endif
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#ifndef NDEBUG
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void printBytecodeOperandTypes(VirtualRegister src1, VirtualRegister src2);
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#endif
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#if ENABLE(SAMPLING_FLAGS)
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void setSamplingFlag(int32_t);
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void clearSamplingFlag(int32_t);
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#endif
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#if ENABLE(SAMPLING_COUNTERS)
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void emitCount(AbstractSamplingCounter&, int32_t = 1);
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#endif
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#if ENABLE(OPCODE_SAMPLING)
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void sampleInstruction(const Instruction*, bool = false);
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#endif
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#if ENABLE(CODEBLOCK_SAMPLING)
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void sampleCodeBlock(CodeBlock*);
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#else
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void sampleCodeBlock(CodeBlock*) {}
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#endif
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#if ENABLE(DFG_JIT)
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bool canBeOptimized() { return m_canBeOptimized; }
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bool canBeOptimizedOrInlined() { return m_canBeOptimizedOrInlined; }
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bool shouldEmitProfiling() { return m_shouldEmitProfiling; }
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#else
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bool canBeOptimized() { return false; }
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bool canBeOptimizedOrInlined() { return false; }
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// Enables use of value profiler with tiered compilation turned off,
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// in which case all code gets profiled.
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bool shouldEmitProfiling() { return false; }
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#endif
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static bool reportCompileTimes();
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static bool computeCompileTimes();
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// If you need to check a value from the metadata table and you need it to
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// be consistent across the fast and slow path, then you want to use this.
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// It will give the slow path the same value read by the fast path.
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GetPutInfo copiedGetPutInfo(OpPutToScope);
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template<typename BinaryOp>
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BinaryArithProfile copiedArithProfile(BinaryOp);
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Interpreter* m_interpreter;
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Vector<FarCallRecord> m_farCalls;
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Vector<NearCallRecord> m_nearCalls;
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Vector<Label> m_labels;
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HashMap<BytecodeIndex, Label> m_checkpointLabels;
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Vector<JITGetByIdGenerator> m_getByIds;
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Vector<JITGetByValGenerator> m_getByVals;
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Vector<JITGetByIdWithThisGenerator> m_getByIdsWithThis;
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Vector<JITPutByIdGenerator> m_putByIds;
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Vector<JITInByIdGenerator> m_inByIds;
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Vector<JITDelByIdGenerator> m_delByIds;
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Vector<JITDelByValGenerator> m_delByVals;
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Vector<JITInstanceOfGenerator> m_instanceOfs;
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Vector<ByValCompilationInfo> m_byValCompilationInfo;
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Vector<CallCompilationInfo> m_callCompilationInfo;
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Vector<JumpTable> m_jmpTable;
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BytecodeIndex m_bytecodeIndex;
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Vector<SlowCaseEntry> m_slowCases;
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Vector<SwitchRecord> m_switches;
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HashMap<unsigned, unsigned> m_copiedGetPutInfos;
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HashMap<uint64_t, BinaryArithProfile> m_copiedArithProfiles;
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JumpList m_exceptionChecks;
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JumpList m_exceptionChecksWithCallFrameRollback;
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Label m_exceptionHandler;
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unsigned m_getByIdIndex { UINT_MAX };
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unsigned m_getByValIndex { UINT_MAX };
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unsigned m_getByIdWithThisIndex { UINT_MAX };
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unsigned m_putByIdIndex { UINT_MAX };
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unsigned m_inByIdIndex { UINT_MAX };
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unsigned m_delByValIndex { UINT_MAX };
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unsigned m_delByIdIndex { UINT_MAX };
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unsigned m_instanceOfIndex { UINT_MAX };
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unsigned m_byValInstructionIndex { UINT_MAX };
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unsigned m_callLinkInfoIndex { UINT_MAX };
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unsigned m_bytecodeCountHavingSlowCase { 0 };
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Label m_arityCheck;
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std::unique_ptr<LinkBuffer> m_linkBuffer;
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std::unique_ptr<JITDisassembler> m_disassembler;
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RefPtr<Profiler::Compilation> m_compilation;
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PCToCodeOriginMapBuilder m_pcToCodeOriginMapBuilder;
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HashMap<const Instruction*, void*> m_instructionToMathIC;
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HashMap<const Instruction*, MathICGenerationState> m_instructionToMathICGenerationState;
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bool m_canBeOptimized;
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bool m_canBeOptimizedOrInlined;
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bool m_shouldEmitProfiling;
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BytecodeIndex m_loopOSREntryBytecodeIndex;
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};
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} // namespace JSC
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#endif // ENABLE(JIT)
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