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 JITStubCall_h |
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#define JITStubCall_h |
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|
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#include "MacroAssemblerCodeRef.h" |
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#if ENABLE(JIT) |
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namespace JSC { |
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class JITStubCall { |
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public: |
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JITStubCall(JIT* jit, JSObject* (JIT_STUB *stub)(STUB_ARGS_DECLARATION)) |
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: m_jit(jit) |
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, m_stub(stub) |
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, m_returnType(Cell) |
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, m_stackIndex(JITSTACKFRAME_ARGS_INDEX) |
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{ |
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} |
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|
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JITStubCall(JIT* jit, JSPropertyNameIterator* (JIT_STUB *stub)(STUB_ARGS_DECLARATION)) |
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: m_jit(jit) |
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, m_stub(stub) |
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, m_returnType(Cell) |
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, m_stackIndex(JITSTACKFRAME_ARGS_INDEX) |
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{ |
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} |
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JITStubCall(JIT* jit, void* (JIT_STUB *stub)(STUB_ARGS_DECLARATION)) |
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: m_jit(jit) |
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, m_stub(stub) |
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, m_returnType(VoidPtr) |
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, m_stackIndex(JITSTACKFRAME_ARGS_INDEX) |
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{ |
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} |
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JITStubCall(JIT* jit, int (JIT_STUB *stub)(STUB_ARGS_DECLARATION)) |
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: m_jit(jit) |
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, m_stub(stub) |
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, m_returnType(Int) |
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, m_stackIndex(JITSTACKFRAME_ARGS_INDEX) |
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{ |
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} |
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JITStubCall(JIT* jit, bool (JIT_STUB *stub)(STUB_ARGS_DECLARATION)) |
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: m_jit(jit) |
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, m_stub(stub) |
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, m_returnType(Int) |
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, m_stackIndex(JITSTACKFRAME_ARGS_INDEX) |
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{ |
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} |
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JITStubCall(JIT* jit, void (JIT_STUB *stub)(STUB_ARGS_DECLARATION)) |
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: m_jit(jit) |
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, m_stub(stub) |
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, m_returnType(Void) |
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, m_stackIndex(JITSTACKFRAME_ARGS_INDEX) |
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{ |
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} |
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#if USE(JSVALUE32_64) |
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JITStubCall(JIT* jit, EncodedJSValue (JIT_STUB *stub)(STUB_ARGS_DECLARATION)) |
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: m_jit(jit) |
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, m_stub(stub) |
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, m_returnType(Value) |
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, m_stackIndex(JITSTACKFRAME_ARGS_INDEX) |
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{ |
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} |
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#endif |
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// Arguments are added first to last. |
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void skipArgument() |
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{ |
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m_stackIndex += stackIndexStep; |
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} |
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102 |
void addArgument(JIT::Imm32 argument) |
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103 |
{ |
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m_jit->poke(argument, m_stackIndex); |
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m_stackIndex += stackIndexStep; |
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106 |
} |
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107 |
|
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void addArgument(JIT::ImmPtr argument) |
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109 |
{ |
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m_jit->poke(argument, m_stackIndex); |
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m_stackIndex += stackIndexStep; |
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112 |
} |
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113 |
|
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void addArgument(JIT::RegisterID argument) |
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115 |
{ |
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m_jit->poke(argument, m_stackIndex); |
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m_stackIndex += stackIndexStep; |
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} |
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119 |
|
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#if USE(JSVALUE32_64) |
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void addArgument(const JSValue& value) |
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122 |
{ |
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m_jit->poke(JIT::Imm32(value.payload()), m_stackIndex); |
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m_jit->poke(JIT::Imm32(value.tag()), m_stackIndex + 1); |
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m_stackIndex += stackIndexStep; |
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} |
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#endif |
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128 |
|
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void addArgument(JIT::RegisterID tag, JIT::RegisterID payload) |
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130 |
{ |
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m_jit->poke(payload, m_stackIndex); |
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m_jit->poke(tag, m_stackIndex + 1); |
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m_stackIndex += stackIndexStep; |
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} |
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135 |
|
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#if USE(JSVALUE32_64) |
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void addArgument(unsigned srcVirtualRegister) |
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138 |
{ |
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if (m_jit->m_codeBlock->isConstantRegisterIndex(srcVirtualRegister)) { |
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addArgument(m_jit->getConstantOperand(srcVirtualRegister)); |
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return; |
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} |
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143 |
|
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m_jit->emitLoad(srcVirtualRegister, JIT::regT1, JIT::regT0); |
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addArgument(JIT::regT1, JIT::regT0); |
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} |
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147 |
|
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void getArgument(size_t argumentNumber, JIT::RegisterID tag, JIT::RegisterID payload) |
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{ |
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size_t stackIndex = JITSTACKFRAME_ARGS_INDEX + (argumentNumber * stackIndexStep); |
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m_jit->peek(payload, stackIndex); |
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m_jit->peek(tag, stackIndex + 1); |
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} |
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#else |
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void addArgument(unsigned src, JIT::RegisterID scratchRegister) // src is a virtual register. |
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{ |
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if (m_jit->m_codeBlock->isConstantRegisterIndex(src)) |
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addArgument(JIT::ImmPtr(JSValue::encode(m_jit->m_codeBlock->getConstant(src)))); |
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159 |
else { |
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m_jit->loadPtr(JIT::Address(JIT::callFrameRegister, src * sizeof(Register)), scratchRegister); |
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addArgument(scratchRegister); |
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} |
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m_jit->killLastResultRegister(); |
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} |
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#endif |
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166 |
|
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JIT::Call call() |
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{ |
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#if ENABLE(OPCODE_SAMPLING) |
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if (m_jit->m_bytecodeOffset != (unsigned)-1) |
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m_jit->sampleInstruction(m_jit->m_codeBlock->instructions().begin() + m_jit->m_bytecodeOffset, true); |
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#endif |
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173 |
|
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m_jit->restoreArgumentReference(); |
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JIT::Call call = m_jit->call(); |
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m_jit->m_calls.append(CallRecord(call, m_jit->m_bytecodeOffset, m_stub.value())); |
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177 |
|
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#if ENABLE(OPCODE_SAMPLING) |
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if (m_jit->m_bytecodeOffset != (unsigned)-1) |
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m_jit->sampleInstruction(m_jit->m_codeBlock->instructions().begin() + m_jit->m_bytecodeOffset, false); |
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#endif |
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182 |
|
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#if USE(JSVALUE32_64) |
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m_jit->unmap(); |
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#else |
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m_jit->killLastResultRegister(); |
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#endif |
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return call; |
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} |
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190 |
|
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191 |
#if USE(JSVALUE32_64) |
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JIT::Call call(unsigned dst) // dst is a virtual register. |
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193 |
{ |
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ASSERT(m_returnType == Value || m_returnType == Cell); |
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JIT::Call call = this->call(); |
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if (m_returnType == Value) |
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m_jit->emitStore(dst, JIT::regT1, JIT::regT0); |
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else |
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m_jit->emitStoreCell(dst, JIT::returnValueRegister); |
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return call; |
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} |
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#else |
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JIT::Call call(unsigned dst) // dst is a virtual register. |
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{ |
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ASSERT(m_returnType == VoidPtr || m_returnType == Cell); |
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JIT::Call call = this->call(); |
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m_jit->emitPutVirtualRegister(dst); |
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return call; |
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} |
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#endif |
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JIT::Call call(JIT::RegisterID dst) // dst is a machine register. |
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{ |
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#if USE(JSVALUE32_64) |
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ASSERT(m_returnType == Value || m_returnType == VoidPtr || m_returnType == Int || m_returnType == Cell); |
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#else |
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ASSERT(m_returnType == VoidPtr || m_returnType == Int || m_returnType == Cell); |
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#endif |
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JIT::Call call = this->call(); |
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if (dst != JIT::returnValueRegister) |
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m_jit->move(JIT::returnValueRegister, dst); |
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return call; |
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} |
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private: |
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static const size_t stackIndexStep = sizeof(EncodedJSValue) == 2 * sizeof(void*) ? 2 : 1; |
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JIT* m_jit; |
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FunctionPtr m_stub; |
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enum { Void, VoidPtr, Int, Value, Cell } m_returnType; |
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size_t m_stackIndex; |
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}; |
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} |
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#endif // ENABLE(JIT) |
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#endif // JITStubCall_h |