author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 04 Oct 2010 01:32:07 +0300 | |
changeset 2 | 303757a437d3 |
parent 0 | 4f2f89ce4247 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (C) 2008 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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#ifndef AbstractMacroAssembler_h |
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#define AbstractMacroAssembler_h |
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#include <MacroAssemblerCodeRef.h> |
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#include <CodeLocation.h> |
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#include <wtf/Noncopyable.h> |
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#include <wtf/UnusedParam.h> |
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#if ENABLE(ASSEMBLER) |
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namespace JSC { |
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class LinkBuffer; |
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class RepatchBuffer; |
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template <class AssemblerType> |
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class AbstractMacroAssembler { |
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public: |
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typedef AssemblerType AssemblerType_T; |
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typedef MacroAssemblerCodePtr CodePtr; |
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typedef MacroAssemblerCodeRef CodeRef; |
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class Jump; |
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typedef typename AssemblerType::RegisterID RegisterID; |
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typedef typename AssemblerType::JmpSrc JmpSrc; |
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typedef typename AssemblerType::JmpDst JmpDst; |
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// Section 1: MacroAssembler operand types |
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// |
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// The following types are used as operands to MacroAssembler operations, |
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// describing immediate and memory operands to the instructions to be planted. |
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enum Scale { |
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TimesOne, |
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TimesTwo, |
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TimesFour, |
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TimesEight, |
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}; |
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// Address: |
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// |
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// Describes a simple base-offset address. |
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struct Address { |
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explicit Address(RegisterID base, int32_t offset = 0) |
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: base(base) |
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, offset(offset) |
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{ |
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} |
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RegisterID base; |
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int32_t offset; |
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}; |
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struct ExtendedAddress { |
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explicit ExtendedAddress(RegisterID base, intptr_t offset = 0) |
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: base(base) |
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, offset(offset) |
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{ |
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} |
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RegisterID base; |
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intptr_t offset; |
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}; |
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// ImplicitAddress: |
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// |
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// This class is used for explicit 'load' and 'store' operations |
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// (as opposed to situations in which a memory operand is provided |
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// to a generic operation, such as an integer arithmetic instruction). |
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// |
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// In the case of a load (or store) operation we want to permit |
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// addresses to be implicitly constructed, e.g. the two calls: |
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// |
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// load32(Address(addrReg), destReg); |
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// load32(addrReg, destReg); |
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// |
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// Are equivalent, and the explicit wrapping of the Address in the former |
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// is unnecessary. |
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struct ImplicitAddress { |
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ImplicitAddress(RegisterID base) |
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: base(base) |
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, offset(0) |
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112 |
{ |
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} |
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114 |
|
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ImplicitAddress(Address address) |
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: base(address.base) |
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, offset(address.offset) |
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{ |
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} |
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120 |
|
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RegisterID base; |
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int32_t offset; |
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}; |
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124 |
|
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// BaseIndex: |
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// |
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// Describes a complex addressing mode. |
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struct BaseIndex { |
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BaseIndex(RegisterID base, RegisterID index, Scale scale, int32_t offset = 0) |
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: base(base) |
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, index(index) |
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, scale(scale) |
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, offset(offset) |
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134 |
{ |
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} |
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136 |
|
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RegisterID base; |
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RegisterID index; |
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Scale scale; |
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int32_t offset; |
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}; |
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142 |
|
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// AbsoluteAddress: |
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// |
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// Describes an memory operand given by a pointer. For regular load & store |
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// operations an unwrapped void* will be used, rather than using this. |
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struct AbsoluteAddress { |
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explicit AbsoluteAddress(void* ptr) |
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: m_ptr(ptr) |
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150 |
{ |
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} |
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|
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void* m_ptr; |
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}; |
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|
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// ImmPtr: |
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// |
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// A pointer sized immediate operand to an instruction - this is wrapped |
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// in a class requiring explicit construction in order to differentiate |
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// from pointers used as absolute addresses to memory operations |
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struct ImmPtr { |
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explicit ImmPtr(const void* value) |
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: m_value(value) |
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{ |
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} |
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166 |
|
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intptr_t asIntptr() |
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{ |
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return reinterpret_cast<intptr_t>(m_value); |
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} |
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|
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const void* m_value; |
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}; |
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|
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// Imm32: |
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// |
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// A 32bit immediate operand to an instruction - this is wrapped in a |
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// class requiring explicit construction in order to prevent RegisterIDs |
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// (which are implemented as an enum) from accidentally being passed as |
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// immediate values. |
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struct Imm32 { |
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explicit Imm32(int32_t value) |
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: m_value(value) |
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#if CPU(ARM) || CPU(MIPS) |
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, m_isPointer(false) |
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#endif |
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{ |
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} |
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|
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#if !CPU(X86_64) |
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explicit Imm32(ImmPtr ptr) |
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: m_value(ptr.asIntptr()) |
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#if CPU(ARM) || CPU(MIPS) |
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, m_isPointer(true) |
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#endif |
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{ |
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} |
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#endif |
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|
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int32_t m_value; |
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#if CPU(ARM) || CPU(MIPS) |
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// We rely on being able to regenerate code to recover exception handling |
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// information. Since ARMv7 supports 16-bit immediates there is a danger |
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// that if pointer values change the layout of the generated code will change. |
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// To avoid this problem, always generate pointers (and thus Imm32s constructed |
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// from ImmPtrs) with a code sequence that is able to represent any pointer |
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// value - don't use a more compact form in these cases. |
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// Same for MIPS. |
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bool m_isPointer; |
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#endif |
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}; |
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// Section 2: MacroAssembler code buffer handles |
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// |
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// The following types are used to reference items in the code buffer |
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// during JIT code generation. For example, the type Jump is used to |
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// track the location of a jump instruction so that it may later be |
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// linked to a label marking its destination. |
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// Label: |
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// |
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// A Label records a point in the generated instruction stream, typically such that |
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// it may be used as a destination for a jump. |
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class Label { |
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template<class TemplateAssemblerType> |
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friend class AbstractMacroAssembler; |
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friend class Jump; |
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friend class MacroAssemblerCodeRef; |
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friend class LinkBuffer; |
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public: |
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Label() |
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{ |
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} |
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Label(AbstractMacroAssembler<AssemblerType>* masm) |
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: m_label(masm->m_assembler.label()) |
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{ |
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} |
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bool isUsed() const { return m_label.isUsed(); } |
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void used() { m_label.used(); } |
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private: |
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JmpDst m_label; |
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}; |
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// DataLabelPtr: |
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// |
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// A DataLabelPtr is used to refer to a location in the code containing a pointer to be |
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// patched after the code has been generated. |
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class DataLabelPtr { |
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template<class TemplateAssemblerType> |
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friend class AbstractMacroAssembler; |
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friend class LinkBuffer; |
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public: |
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DataLabelPtr() |
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{ |
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} |
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DataLabelPtr(AbstractMacroAssembler<AssemblerType>* masm) |
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: m_label(masm->m_assembler.label()) |
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{ |
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} |
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|
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private: |
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JmpDst m_label; |
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}; |
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// DataLabel32: |
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// |
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// A DataLabelPtr is used to refer to a location in the code containing a pointer to be |
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// patched after the code has been generated. |
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class DataLabel32 { |
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template<class TemplateAssemblerType> |
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friend class AbstractMacroAssembler; |
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friend class LinkBuffer; |
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public: |
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DataLabel32() |
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{ |
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} |
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|
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DataLabel32(AbstractMacroAssembler<AssemblerType>* masm) |
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: m_label(masm->m_assembler.label()) |
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{ |
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} |
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|
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private: |
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JmpDst m_label; |
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}; |
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|
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// Call: |
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// |
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// A Call object is a reference to a call instruction that has been planted |
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// into the code buffer - it is typically used to link the call, setting the |
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// relative offset such that when executed it will call to the desired |
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// destination. |
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class Call { |
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template<class TemplateAssemblerType> |
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friend class AbstractMacroAssembler; |
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|
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public: |
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enum Flags { |
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None = 0x0, |
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Linkable = 0x1, |
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Near = 0x2, |
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LinkableNear = 0x3, |
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}; |
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|
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Call() |
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: m_flags(None) |
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{ |
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} |
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|
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Call(JmpSrc jmp, Flags flags) |
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: m_jmp(jmp) |
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, m_flags(flags) |
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{ |
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} |
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|
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bool isFlagSet(Flags flag) |
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{ |
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return m_flags & flag; |
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} |
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|
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static Call fromTailJump(Jump jump) |
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{ |
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return Call(jump.m_jmp, Linkable); |
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} |
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|
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JmpSrc m_jmp; |
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private: |
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Flags m_flags; |
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}; |
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|
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// Jump: |
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// |
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// A jump object is a reference to a jump instruction that has been planted |
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// into the code buffer - it is typically used to link the jump, setting the |
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// relative offset such that when executed it will jump to the desired |
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// destination. |
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class Jump { |
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template<class TemplateAssemblerType> |
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friend class AbstractMacroAssembler; |
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friend class Call; |
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friend class LinkBuffer; |
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public: |
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Jump() |
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{ |
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} |
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|
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Jump(JmpSrc jmp) |
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: m_jmp(jmp) |
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{ |
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} |
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|
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void link(AbstractMacroAssembler<AssemblerType>* masm) |
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{ |
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masm->m_assembler.linkJump(m_jmp, masm->m_assembler.label()); |
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} |
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|
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void linkTo(Label label, AbstractMacroAssembler<AssemblerType>* masm) |
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{ |
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masm->m_assembler.linkJump(m_jmp, label.m_label); |
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} |
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|
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private: |
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JmpSrc m_jmp; |
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}; |
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371 |
|
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// JumpList: |
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// |
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// A JumpList is a set of Jump objects. |
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// All jumps in the set will be linked to the same destination. |
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class JumpList { |
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friend class LinkBuffer; |
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|
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public: |
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typedef Vector<Jump, 16> JumpVector; |
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|
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void link(AbstractMacroAssembler<AssemblerType>* masm) |
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{ |
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size_t size = m_jumps.size(); |
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for (size_t i = 0; i < size; ++i) |
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m_jumps[i].link(masm); |
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m_jumps.clear(); |
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} |
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389 |
|
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void linkTo(Label label, AbstractMacroAssembler<AssemblerType>* masm) |
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391 |
{ |
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size_t size = m_jumps.size(); |
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for (size_t i = 0; i < size; ++i) |
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m_jumps[i].linkTo(label, masm); |
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m_jumps.clear(); |
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} |
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|
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void append(Jump jump) |
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{ |
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m_jumps.append(jump); |
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} |
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|
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void append(JumpList& other) |
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404 |
{ |
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m_jumps.append(other.m_jumps.begin(), other.m_jumps.size()); |
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} |
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|
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bool empty() |
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{ |
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return !m_jumps.size(); |
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} |
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|
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const JumpVector& jumps() { return m_jumps; } |
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|
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415 |
private: |
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JumpVector m_jumps; |
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}; |
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|
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|
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// Section 3: Misc admin methods |
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|
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static CodePtr trampolineAt(CodeRef ref, Label label) |
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{ |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
424 |
return CodePtr(AssemblerType::getRelocatedAddress(ref.m_code.dataLocation(), label.m_label)); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
425 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
426 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
427 |
size_t size() |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
428 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
429 |
return m_assembler.size(); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
430 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
431 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
432 |
Label label() |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
433 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
434 |
return Label(this); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
435 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
436 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
437 |
Label align() |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
438 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
439 |
m_assembler.align(16); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
440 |
return Label(this); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
441 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
442 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
443 |
ptrdiff_t differenceBetween(Label from, Jump to) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
444 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
445 |
return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_jmp); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
446 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
447 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
448 |
ptrdiff_t differenceBetween(Label from, Call to) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
449 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
450 |
return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_jmp); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
451 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
452 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
453 |
ptrdiff_t differenceBetween(Label from, Label to) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
454 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
455 |
return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
456 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
457 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
458 |
ptrdiff_t differenceBetween(Label from, DataLabelPtr to) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
459 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
460 |
return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
461 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
462 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
463 |
ptrdiff_t differenceBetween(Label from, DataLabel32 to) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
464 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
465 |
return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
466 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
467 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
468 |
ptrdiff_t differenceBetween(DataLabelPtr from, Jump to) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
469 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
470 |
return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_jmp); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
471 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
472 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
473 |
ptrdiff_t differenceBetween(DataLabelPtr from, DataLabelPtr to) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
474 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
475 |
return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
476 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
477 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
478 |
ptrdiff_t differenceBetween(DataLabelPtr from, Call to) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
479 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
480 |
return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_jmp); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
481 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
482 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
483 |
protected: |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
484 |
AssemblerType m_assembler; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
485 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
486 |
friend class LinkBuffer; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
487 |
friend class RepatchBuffer; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
488 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
489 |
static void linkJump(void* code, Jump jump, CodeLocationLabel target) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
490 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
491 |
AssemblerType::linkJump(code, jump.m_jmp, target.dataLocation()); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
492 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
493 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
494 |
static void linkPointer(void* code, typename AssemblerType::JmpDst label, void* value) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
495 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
496 |
AssemblerType::linkPointer(code, label, value); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
497 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
498 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
499 |
static void* getLinkerAddress(void* code, typename AssemblerType::JmpSrc label) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
500 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
501 |
return AssemblerType::getRelocatedAddress(code, label); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
502 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
503 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
504 |
static void* getLinkerAddress(void* code, typename AssemblerType::JmpDst label) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
505 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
506 |
return AssemblerType::getRelocatedAddress(code, label); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
507 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
508 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
509 |
static unsigned getLinkerCallReturnOffset(Call call) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
510 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
511 |
return AssemblerType::getCallReturnOffset(call.m_jmp); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
512 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
513 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
514 |
static void repatchJump(CodeLocationJump jump, CodeLocationLabel destination) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
515 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
516 |
AssemblerType::relinkJump(jump.dataLocation(), destination.dataLocation()); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
517 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
518 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
519 |
static void repatchNearCall(CodeLocationNearCall nearCall, CodeLocationLabel destination) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
520 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
521 |
AssemblerType::relinkCall(nearCall.dataLocation(), destination.executableAddress()); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
522 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
523 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
524 |
static void repatchInt32(CodeLocationDataLabel32 dataLabel32, int32_t value) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
525 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
526 |
AssemblerType::repatchInt32(dataLabel32.dataLocation(), value); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
527 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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static void repatchPointer(CodeLocationDataLabelPtr dataLabelPtr, void* value) |
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{ |
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AssemblerType::repatchPointer(dataLabelPtr.dataLocation(), value); |
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} |
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static void repatchLoadPtrToLEA(CodeLocationInstruction instruction) |
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{ |
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AssemblerType::repatchLoadPtrToLEA(instruction.dataLocation()); |
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} |
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}; |
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} // namespace JSC |
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#endif // ENABLE(ASSEMBLER) |
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#endif // AbstractMacroAssembler_h |