michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0:  * vim: set ts=8 sts=4 et sw=4 tw=99:
michael@0:  *
michael@0:  * ***** BEGIN LICENSE BLOCK *****
michael@0:  * Copyright (C) 2008 Apple Inc. All rights reserved.
michael@0:  *
michael@0:  * Redistribution and use in source and binary forms, with or without
michael@0:  * modification, are permitted provided that the following conditions
michael@0:  * are met:
michael@0:  * 1. Redistributions of source code must retain the above copyright
michael@0:  *    notice, this list of conditions and the following disclaimer.
michael@0:  * 2. Redistributions in binary form must reproduce the above copyright
michael@0:  *    notice, this list of conditions and the following disclaimer in the
michael@0:  *    documentation and/or other materials provided with the distribution.
michael@0:  *
michael@0:  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
michael@0:  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
michael@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
michael@0:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
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michael@0:  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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michael@0:  *
michael@0:  * ***** END LICENSE BLOCK ***** */
michael@0: 
michael@0: #ifndef assembler_assembler_AbstractMacroAssembler_h
michael@0: #define assembler_assembler_AbstractMacroAssembler_h
michael@0: 
michael@0: #include "assembler/wtf/Platform.h"
michael@0: #include "assembler/assembler/MacroAssemblerCodeRef.h"
michael@0: #include "assembler/assembler/CodeLocation.h"
michael@0: 
michael@0: #if ENABLE_ASSEMBLER
michael@0: 
michael@0: namespace JSC {
michael@0: 
michael@0: class LinkBuffer;
michael@0: class RepatchBuffer;
michael@0: 
michael@0: template <class AssemblerType>
michael@0: class AbstractMacroAssembler {
michael@0: public:
michael@0:     typedef AssemblerType AssemblerType_T;
michael@0: 
michael@0:     typedef MacroAssemblerCodePtr CodePtr;
michael@0:     typedef MacroAssemblerCodeRef CodeRef;
michael@0: 
michael@0:     class Jump;
michael@0: 
michael@0:     typedef typename AssemblerType::RegisterID RegisterID;
michael@0:     typedef typename AssemblerType::FPRegisterID FPRegisterID;
michael@0:     typedef typename AssemblerType::JmpSrc JmpSrc;
michael@0:     typedef typename AssemblerType::JmpDst JmpDst;
michael@0: 
michael@0: #ifdef DEBUG
michael@0:     void setSpewPath(bool isOOLPath)
michael@0:     {
michael@0:         m_assembler.isOOLPath = isOOLPath;
michael@0:     }
michael@0: #endif
michael@0: 
michael@0:     // Section 1: MacroAssembler operand types
michael@0:     //
michael@0:     // The following types are used as operands to MacroAssembler operations,
michael@0:     // describing immediate  and memory operands to the instructions to be planted.
michael@0: 
michael@0: 
michael@0:     enum Scale {
michael@0:         TimesOne,
michael@0:         TimesTwo,
michael@0:         TimesFour,
michael@0:         TimesEight
michael@0:     };
michael@0: 
michael@0:     // Address:
michael@0:     //
michael@0:     // Describes a simple base-offset address.
michael@0:     struct Address {
michael@0:         explicit Address() {}
michael@0: 
michael@0:         explicit Address(RegisterID base, int32_t offset = 0)
michael@0:             : base(base)
michael@0:             , offset(offset)
michael@0:         {
michael@0:         }
michael@0: 
michael@0:         RegisterID base;
michael@0:         int32_t offset;
michael@0:     };
michael@0: 
michael@0:     struct ExtendedAddress {
michael@0:         explicit ExtendedAddress(RegisterID base, intptr_t offset = 0)
michael@0:             : base(base)
michael@0:             , offset(offset)
michael@0:         {
michael@0:         }
michael@0: 
michael@0:         RegisterID base;
michael@0:         intptr_t offset;
michael@0:     };
michael@0: 
michael@0:     // ImplicitAddress:
michael@0:     //
michael@0:     // This class is used for explicit 'load' and 'store' operations
michael@0:     // (as opposed to situations in which a memory operand is provided
michael@0:     // to a generic operation, such as an integer arithmetic instruction).
michael@0:     //
michael@0:     // In the case of a load (or store) operation we want to permit
michael@0:     // addresses to be implicitly constructed, e.g. the two calls:
michael@0:     //
michael@0:     //     load32(Address(addrReg), destReg);
michael@0:     //     load32(addrReg, destReg);
michael@0:     //
michael@0:     // Are equivalent, and the explicit wrapping of the Address in the former
michael@0:     // is unnecessary.
michael@0:     struct ImplicitAddress {
michael@0:         ImplicitAddress(RegisterID base)
michael@0:             : base(base)
michael@0:             , offset(0)
michael@0:         {
michael@0:         }
michael@0: 
michael@0:         ImplicitAddress(Address address)
michael@0:             : base(address.base)
michael@0:             , offset(address.offset)
michael@0:         {
michael@0:         }
michael@0: 
michael@0:         RegisterID base;
michael@0:         int32_t offset;
michael@0:     };
michael@0: 
michael@0:     // BaseIndex:
michael@0:     //
michael@0:     // Describes a complex addressing mode.
michael@0:     struct BaseIndex {
michael@0:         BaseIndex(RegisterID base, RegisterID index, Scale scale, int32_t offset = 0)
michael@0:             : base(base)
michael@0:             , index(index)
michael@0:             , scale(scale)
michael@0:             , offset(offset)
michael@0:         {
michael@0:         }
michael@0: 
michael@0:         RegisterID base;
michael@0:         RegisterID index;
michael@0:         Scale scale;
michael@0:         int32_t offset;
michael@0:     };
michael@0: 
michael@0:     // AbsoluteAddress:
michael@0:     //
michael@0:     // Describes an memory operand given by a pointer.  For regular load & store
michael@0:     // operations an unwrapped void* will be used, rather than using this.
michael@0:     struct AbsoluteAddress {
michael@0:         explicit AbsoluteAddress(const void* ptr)
michael@0:             : m_ptr(ptr)
michael@0:         {
michael@0:         }
michael@0: 
michael@0:         const void* m_ptr;
michael@0:     };
michael@0: 
michael@0:     // TrustedImmPtr:
michael@0:     //
michael@0:     // A pointer sized immediate operand to an instruction - this is wrapped
michael@0:     // in a class requiring explicit construction in order to differentiate
michael@0:     // from pointers used as absolute addresses to memory operations
michael@0:     struct TrustedImmPtr {
michael@0:         explicit TrustedImmPtr(const void* value)
michael@0:             : m_value(value)
michael@0:         {
michael@0:         }
michael@0: 
michael@0:         intptr_t asIntptr()
michael@0:         {
michael@0:             return reinterpret_cast<intptr_t>(m_value);
michael@0:         }
michael@0: 
michael@0:         const void* m_value;
michael@0:     };
michael@0: 
michael@0:     struct ImmPtr : public TrustedImmPtr {
michael@0:         explicit ImmPtr(const void* value)
michael@0:             : TrustedImmPtr(value)
michael@0:         {
michael@0:         }
michael@0:     };
michael@0: 
michael@0:     // TrustedImm32:
michael@0:     //
michael@0:     // A 32bit immediate operand to an instruction - this is wrapped in a
michael@0:     // class requiring explicit construction in order to prevent RegisterIDs
michael@0:     // (which are implemented as an enum) from accidentally being passed as
michael@0:     // immediate values.
michael@0:     struct TrustedImm32 {
michael@0:         explicit TrustedImm32(int32_t value)
michael@0:             : m_value(value)
michael@0: #if WTF_CPU_ARM || WTF_CPU_MIPS
michael@0:             , m_isPointer(false)
michael@0: #endif
michael@0:         {
michael@0:         }
michael@0: 
michael@0: #if !WTF_CPU_X86_64
michael@0:         explicit TrustedImm32(TrustedImmPtr ptr)
michael@0:             : m_value(ptr.asIntptr())
michael@0: #if WTF_CPU_ARM || WTF_CPU_MIPS
michael@0:             , m_isPointer(true)
michael@0: #endif
michael@0:         {
michael@0:         }
michael@0: #endif
michael@0: 
michael@0:         int32_t m_value;
michael@0: #if WTF_CPU_ARM || WTF_CPU_MIPS
michael@0:         // We rely on being able to regenerate code to recover exception handling
michael@0:         // information.  Since ARMv7 supports 16-bit immediates there is a danger
michael@0:         // that if pointer values change the layout of the generated code will change.
michael@0:         // To avoid this problem, always generate pointers (and thus Imm32s constructed
michael@0:         // from ImmPtrs) with a code sequence that is able  to represent  any pointer
michael@0:         // value - don't use a more compact form in these cases.
michael@0:         // Same for MIPS.
michael@0:         bool m_isPointer;
michael@0: #endif
michael@0:     };
michael@0: 
michael@0: 
michael@0:     struct Imm32 : public TrustedImm32 {
michael@0:         explicit Imm32(int32_t value)
michael@0:             : TrustedImm32(value)
michael@0:         {
michael@0:         }
michael@0: #if !WTF_CPU_X86_64
michael@0:         explicit Imm32(TrustedImmPtr ptr)
michael@0:             : TrustedImm32(ptr)
michael@0:         {
michael@0:         }
michael@0: #endif
michael@0:     };
michael@0: 
michael@0:     struct ImmDouble {
michael@0:         union {
michael@0:             struct {
michael@0: #if WTF_CPU_BIG_ENDIAN || WTF_CPU_MIDDLE_ENDIAN
michael@0:                 uint32_t msb, lsb;
michael@0: #else
michael@0:                 uint32_t lsb, msb;
michael@0: #endif
michael@0:             } s;
michael@0:             uint64_t u64;
michael@0:             double d;
michael@0:         } u;
michael@0: 
michael@0:         explicit ImmDouble(double d) {
michael@0:             u.d = d;
michael@0:         }
michael@0:     };
michael@0: 
michael@0:     // Section 2: MacroAssembler code buffer handles
michael@0:     //
michael@0:     // The following types are used to reference items in the code buffer
michael@0:     // during JIT code generation.  For example, the type Jump is used to
michael@0:     // track the location of a jump instruction so that it may later be
michael@0:     // linked to a label marking its destination.
michael@0: 
michael@0: 
michael@0:     // Label:
michael@0:     //
michael@0:     // A Label records a point in the generated instruction stream, typically such that
michael@0:     // it may be used as a destination for a jump.
michael@0:     class Label {
michael@0:         template<class TemplateAssemblerType>
michael@0:         friend class AbstractMacroAssembler;
michael@0:         friend class Jump;
michael@0:         friend class MacroAssemblerCodeRef;
michael@0:         friend class LinkBuffer;
michael@0: 
michael@0:     public:
michael@0:         Label()
michael@0:         {
michael@0:         }
michael@0: 
michael@0:         Label(AbstractMacroAssembler<AssemblerType>* masm)
michael@0:             : m_label(masm->m_assembler.label())
michael@0:         {
michael@0:         }
michael@0: 
michael@0:         bool isUsed() const { return m_label.isUsed(); }
michael@0:         void used() { m_label.used(); }
michael@0:         bool isSet() const { return m_label.isValid(); }
michael@0:     private:
michael@0:         JmpDst m_label;
michael@0:     };
michael@0: 
michael@0:     // DataLabelPtr:
michael@0:     //
michael@0:     // A DataLabelPtr is used to refer to a location in the code containing a pointer to be
michael@0:     // patched after the code has been generated.
michael@0:     class DataLabelPtr {
michael@0:         template<class TemplateAssemblerType>
michael@0:         friend class AbstractMacroAssembler;
michael@0:         friend class LinkBuffer;
michael@0:     public:
michael@0:         DataLabelPtr()
michael@0:         {
michael@0:         }
michael@0: 
michael@0:         DataLabelPtr(AbstractMacroAssembler<AssemblerType>* masm)
michael@0:             : m_label(masm->m_assembler.label())
michael@0:         {
michael@0:         }
michael@0: 
michael@0:         bool isSet() const { return m_label.isValid(); }
michael@0: 
michael@0:     private:
michael@0:         JmpDst m_label;
michael@0:     };
michael@0: 
michael@0:     // DataLabel32:
michael@0:     //
michael@0:     // A DataLabel32 is used to refer to a location in the code containing a
michael@0:     // 32-bit constant to be patched after the code has been generated.
michael@0:     class DataLabel32 {
michael@0:         template<class TemplateAssemblerType>
michael@0:         friend class AbstractMacroAssembler;
michael@0:         friend class LinkBuffer;
michael@0:     public:
michael@0:         DataLabel32()
michael@0:         {
michael@0:         }
michael@0: 
michael@0:         DataLabel32(AbstractMacroAssembler<AssemblerType>* masm)
michael@0:             : m_label(masm->m_assembler.label())
michael@0:         {
michael@0:         }
michael@0: 
michael@0:     private:
michael@0:         JmpDst m_label;
michael@0:     };
michael@0: 
michael@0:     // Call:
michael@0:     //
michael@0:     // A Call object is a reference to a call instruction that has been planted
michael@0:     // into the code buffer - it is typically used to link the call, setting the
michael@0:     // relative offset such that when executed it will call to the desired
michael@0:     // destination.
michael@0:     class Call {
michael@0:         template<class TemplateAssemblerType>
michael@0:         friend class AbstractMacroAssembler;
michael@0: 
michael@0:     public:
michael@0:         enum Flags {
michael@0:             None = 0x0,
michael@0:             Linkable = 0x1,
michael@0:             Near = 0x2,
michael@0:             LinkableNear = 0x3
michael@0:         };
michael@0: 
michael@0:         Call()
michael@0:             : m_flags(None)
michael@0:         {
michael@0:         }
michael@0: 
michael@0:         Call(JmpSrc jmp, Flags flags)
michael@0:             : m_jmp(jmp)
michael@0:             , m_flags(flags)
michael@0:         {
michael@0:         }
michael@0: 
michael@0:         bool isFlagSet(Flags flag)
michael@0:         {
michael@0:             return !!(m_flags & flag);
michael@0:         }
michael@0: 
michael@0:         static Call fromTailJump(Jump jump)
michael@0:         {
michael@0:             return Call(jump.m_jmp, Linkable);
michael@0:         }
michael@0: 
michael@0:         JmpSrc m_jmp;
michael@0:     private:
michael@0:         Flags m_flags;
michael@0:     };
michael@0: 
michael@0:     // Jump:
michael@0:     //
michael@0:     // A jump object is a reference to a jump instruction that has been planted
michael@0:     // into the code buffer - it is typically used to link the jump, setting the
michael@0:     // relative offset such that when executed it will jump to the desired
michael@0:     // destination.
michael@0:     class Jump {
michael@0:         template<class TemplateAssemblerType>
michael@0:         friend class AbstractMacroAssembler;
michael@0:         friend class Call;
michael@0:         friend class LinkBuffer;
michael@0:     public:
michael@0:         Jump()
michael@0:         {
michael@0:         }
michael@0: 
michael@0:         Jump(JmpSrc jmp)
michael@0:             : m_jmp(jmp)
michael@0:         {
michael@0:         }
michael@0: 
michael@0:         void link(AbstractMacroAssembler<AssemblerType>* masm) const
michael@0:         {
michael@0:             masm->m_assembler.linkJump(m_jmp, masm->m_assembler.label());
michael@0:         }
michael@0: 
michael@0:         void linkTo(Label label, AbstractMacroAssembler<AssemblerType>* masm) const
michael@0:         {
michael@0:             masm->m_assembler.linkJump(m_jmp, label.m_label);
michael@0:         }
michael@0: 
michael@0:         bool isSet() const { return m_jmp.isSet(); }
michael@0: 
michael@0:     private:
michael@0:         JmpSrc m_jmp;
michael@0:     };
michael@0: 
michael@0:     // JumpList:
michael@0:     //
michael@0:     // A JumpList is a set of Jump objects.
michael@0:     // All jumps in the set will be linked to the same destination.
michael@0:     class JumpList {
michael@0:         friend class LinkBuffer;
michael@0: 
michael@0:     public:
michael@0:         typedef js::Vector<Jump, 16 ,js::SystemAllocPolicy > JumpVector;
michael@0: 
michael@0:         JumpList() {}
michael@0: 
michael@0:         JumpList(const JumpList &other)
michael@0:         {
michael@0:             m_jumps.appendAll(other.m_jumps);
michael@0:         }
michael@0: 
michael@0:         JumpList &operator=(const JumpList &other)
michael@0:         {
michael@0:             m_jumps.clear();
michael@0:             m_jumps.append(other.m_jumps);
michael@0:             return *this;
michael@0:         }
michael@0: 
michael@0:         void link(AbstractMacroAssembler<AssemblerType>* masm)
michael@0:         {
michael@0:             size_t size = m_jumps.length();
michael@0:             for (size_t i = 0; i < size; ++i)
michael@0:                 m_jumps[i].link(masm);
michael@0:             m_jumps.clear();
michael@0:         }
michael@0: 
michael@0:         void linkTo(Label label, AbstractMacroAssembler<AssemblerType>* masm)
michael@0:         {
michael@0:             size_t size = m_jumps.length();
michael@0:             for (size_t i = 0; i < size; ++i)
michael@0:                 m_jumps[i].linkTo(label, masm);
michael@0:             m_jumps.clear();
michael@0:         }
michael@0: 
michael@0:         void append(Jump jump)
michael@0:         {
michael@0:             m_jumps.append(jump);
michael@0:         }
michael@0: 
michael@0:         void append(const JumpList& other)
michael@0:         {
michael@0:             m_jumps.append(other.m_jumps.begin(), other.m_jumps.length());
michael@0:         }
michael@0: 
michael@0:         void clear()
michael@0:         {
michael@0:             m_jumps.clear();
michael@0:         }
michael@0: 
michael@0:         bool empty()
michael@0:         {
michael@0:             return !m_jumps.length();
michael@0:         }
michael@0: 
michael@0:         const JumpVector& jumps() const { return m_jumps; }
michael@0: 
michael@0:     private:
michael@0:         JumpVector m_jumps;
michael@0:     };
michael@0: 
michael@0: 
michael@0:     // Section 3: Misc admin methods
michael@0: 
michael@0:     static CodePtr trampolineAt(CodeRef ref, Label label)
michael@0:     {
michael@0:         return CodePtr(AssemblerType::getRelocatedAddress(ref.m_code.dataLocation(), label.m_label));
michael@0:     }
michael@0: 
michael@0:     size_t size()
michael@0:     {
michael@0:         return m_assembler.size();
michael@0:     }
michael@0: 
michael@0:     unsigned char *buffer()
michael@0:     {
michael@0:         return m_assembler.buffer();
michael@0:     }
michael@0: 
michael@0:     bool oom()
michael@0:     {
michael@0:         return m_assembler.oom();
michael@0:     }
michael@0: 
michael@0:     void executableCopy(void* buffer)
michael@0:     {
michael@0:         ASSERT(!oom());
michael@0:         m_assembler.executableCopy(buffer);
michael@0:     }
michael@0: 
michael@0:     Label label()
michael@0:     {
michael@0:         return Label(this);
michael@0:     }
michael@0: 
michael@0:     DataLabel32 dataLabel32()
michael@0:     {
michael@0:         return DataLabel32(this);
michael@0:     }
michael@0: 
michael@0:     Label align()
michael@0:     {
michael@0:         m_assembler.align(16);
michael@0:         return Label(this);
michael@0:     }
michael@0: 
michael@0:     ptrdiff_t differenceBetween(Label from, Jump to)
michael@0:     {
michael@0:         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_jmp);
michael@0:     }
michael@0: 
michael@0:     ptrdiff_t differenceBetween(Label from, Call to)
michael@0:     {
michael@0:         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_jmp);
michael@0:     }
michael@0: 
michael@0:     ptrdiff_t differenceBetween(Label from, Label to)
michael@0:     {
michael@0:         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label);
michael@0:     }
michael@0: 
michael@0:     ptrdiff_t differenceBetween(Label from, DataLabelPtr to)
michael@0:     {
michael@0:         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label);
michael@0:     }
michael@0: 
michael@0:     ptrdiff_t differenceBetween(Label from, DataLabel32 to)
michael@0:     {
michael@0:         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label);
michael@0:     }
michael@0: 
michael@0:     ptrdiff_t differenceBetween(DataLabel32 from, Label to)
michael@0:     {
michael@0:         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label);
michael@0:     }
michael@0: 
michael@0:     ptrdiff_t differenceBetween(DataLabelPtr from, Label to)
michael@0:     {
michael@0:         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label);
michael@0:     }
michael@0: 
michael@0:     ptrdiff_t differenceBetween(DataLabelPtr from, Jump to)
michael@0:     {
michael@0:         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_jmp);
michael@0:     }
michael@0: 
michael@0:     ptrdiff_t differenceBetween(DataLabelPtr from, DataLabelPtr to)
michael@0:     {
michael@0:         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label);
michael@0:     }
michael@0: 
michael@0:     ptrdiff_t differenceBetween(DataLabelPtr from, Call to)
michael@0:     {
michael@0:         return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_jmp);
michael@0:     }
michael@0: 
michael@0: protected:
michael@0:     AssemblerType m_assembler;
michael@0: 
michael@0:     friend class LinkBuffer;
michael@0:     friend class RepatchBuffer;
michael@0: 
michael@0:     static void linkJump(void* code, Jump jump, CodeLocationLabel target)
michael@0:     {
michael@0:         AssemblerType::linkJump(code, jump.m_jmp, target.dataLocation());
michael@0:     }
michael@0: 
michael@0:     static void linkPointer(void* code, typename AssemblerType::JmpDst label, void* value)
michael@0:     {
michael@0:         AssemblerType::linkPointer(code, label, value);
michael@0:     }
michael@0: 
michael@0:     static void* getLinkerAddress(void* code, typename AssemblerType::JmpSrc label)
michael@0:     {
michael@0:         return AssemblerType::getRelocatedAddress(code, label);
michael@0:     }
michael@0: 
michael@0:     static void* getLinkerAddress(void* code, typename AssemblerType::JmpDst label)
michael@0:     {
michael@0:         return AssemblerType::getRelocatedAddress(code, label);
michael@0:     }
michael@0: 
michael@0:     static unsigned getLinkerCallReturnOffset(Call call)
michael@0:     {
michael@0:         return AssemblerType::getCallReturnOffset(call.m_jmp);
michael@0:     }
michael@0: 
michael@0:     static void repatchJump(CodeLocationJump jump, CodeLocationLabel destination)
michael@0:     {
michael@0:         AssemblerType::relinkJump(jump.dataLocation(), destination.dataLocation());
michael@0:     }
michael@0: 
michael@0:     static bool canRepatchJump(CodeLocationJump jump, CodeLocationLabel destination)
michael@0:     {
michael@0:         return AssemblerType::canRelinkJump(jump.dataLocation(), destination.dataLocation());
michael@0:     }
michael@0: 
michael@0:     static void repatchNearCall(CodeLocationNearCall nearCall, CodeLocationLabel destination)
michael@0:     {
michael@0:         AssemblerType::relinkCall(nearCall.dataLocation(), destination.executableAddress());
michael@0:     }
michael@0: 
michael@0:     static void repatchInt32(CodeLocationDataLabel32 dataLabel32, int32_t value)
michael@0:     {
michael@0:         AssemblerType::repatchInt32(dataLabel32.dataLocation(), value);
michael@0:     }
michael@0: 
michael@0:     static void repatchPointer(CodeLocationDataLabelPtr dataLabelPtr, void* value)
michael@0:     {
michael@0:         AssemblerType::repatchPointer(dataLabelPtr.dataLocation(), value);
michael@0:     }
michael@0: 
michael@0:     static void repatchLoadPtrToLEA(CodeLocationInstruction instruction)
michael@0:     {
michael@0:         AssemblerType::repatchLoadPtrToLEA(instruction.dataLocation());
michael@0:     }
michael@0: 
michael@0:     static void repatchLEAToLoadPtr(CodeLocationInstruction instruction)
michael@0:     {
michael@0:         AssemblerType::repatchLEAToLoadPtr(instruction.dataLocation());
michael@0:     }
michael@0: };
michael@0: 
michael@0: } // namespace JSC
michael@0: 
michael@0: #endif // ENABLE(ASSEMBLER)
michael@0: 
michael@0: #endif /* assembler_assembler_AbstractMacroAssembler_h */