author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 17 Sep 2010 09:07:27 +0300 | |
branch | RCL_3 |
changeset 1 | 9d347b658349 |
parent 0 | 4f2f89ce4247 |
permissions | -rw-r--r-- |
0
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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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#include "config.h" |
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|
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#if ENABLE(JIT) |
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#if !USE(JSVALUE32_64) |
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#include "JIT.h" |
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#include "CodeBlock.h" |
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#include "JITInlineMethods.h" |
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#include "JITStubCall.h" |
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#include "JSArray.h" |
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#include "JSFunction.h" |
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#include "Interpreter.h" |
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#include "ResultType.h" |
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#include "SamplingTool.h" |
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#ifndef NDEBUG |
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#include <stdio.h> |
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#endif |
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using namespace std; |
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namespace JSC { |
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void JIT::compileOpCallInitializeCallFrame() |
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{ |
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store32(regT1, Address(callFrameRegister, RegisterFile::ArgumentCount * static_cast<int>(sizeof(Register)))); |
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loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_scopeChain) + OBJECT_OFFSETOF(ScopeChain, m_node)), regT3); // newScopeChain |
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storePtr(regT0, Address(callFrameRegister, RegisterFile::Callee * static_cast<int>(sizeof(Register)))); |
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storePtr(regT3, Address(callFrameRegister, RegisterFile::ScopeChain * static_cast<int>(sizeof(Register)))); |
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} |
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void JIT::emit_op_call_put_result(Instruction* instruction) |
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{ |
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int dst = instruction[1].u.operand; |
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emitPutVirtualRegister(dst); |
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} |
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void JIT::compileOpCallVarargs(Instruction* instruction) |
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{ |
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int callee = instruction[1].u.operand; |
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int argCountRegister = instruction[2].u.operand; |
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int registerOffset = instruction[3].u.operand; |
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emitGetVirtualRegister(argCountRegister, regT1); |
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emitGetVirtualRegister(callee, regT0); |
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addPtr(Imm32(registerOffset), regT1, regT2); |
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// Check for JSFunctions. |
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emitJumpSlowCaseIfNotJSCell(regT0); |
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addSlowCase(branchPtr(NotEqual, Address(regT0), ImmPtr(m_globalData->jsFunctionVPtr))); |
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// Speculatively roll the callframe, assuming argCount will match the arity. |
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mul32(Imm32(sizeof(Register)), regT2, regT2); |
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intptr_t offset = (intptr_t)sizeof(Register) * (intptr_t)RegisterFile::CallerFrame; |
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addPtr(Imm32((int32_t)offset), regT2, regT3); |
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addPtr(callFrameRegister, regT3); |
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storePtr(callFrameRegister, regT3); |
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addPtr(regT2, callFrameRegister); |
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emitNakedCall(m_globalData->jitStubs->ctiVirtualCall()); |
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sampleCodeBlock(m_codeBlock); |
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} |
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void JIT::compileOpCallVarargsSlowCase(Instruction*, Vector<SlowCaseEntry>::iterator& iter) |
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{ |
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linkSlowCase(iter); |
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linkSlowCase(iter); |
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JITStubCall stubCall(this, cti_op_call_NotJSFunction); |
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stubCall.addArgument(regT0); |
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stubCall.addArgument(regT2); |
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stubCall.addArgument(regT1); |
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stubCall.call(); |
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sampleCodeBlock(m_codeBlock); |
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101 |
} |
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|
102 |
|
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|
103 |
#if !ENABLE(JIT_OPTIMIZE_CALL) |
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|
104 |
|
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105 |
/* ------------------------------ BEGIN: !ENABLE(JIT_OPTIMIZE_CALL) ------------------------------ */ |
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|
106 |
|
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107 |
void JIT::compileOpCall(OpcodeID opcodeID, Instruction* instruction, unsigned) |
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108 |
{ |
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int callee = instruction[1].u.operand; |
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int argCount = instruction[2].u.operand; |
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int registerOffset = instruction[3].u.operand; |
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|
112 |
|
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113 |
// Handle eval |
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Jump wasEval; |
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if (opcodeID == op_call_eval) { |
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JITStubCall stubCall(this, cti_op_call_eval); |
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stubCall.addArgument(callee, regT0); |
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stubCall.addArgument(JIT::Imm32(registerOffset)); |
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stubCall.addArgument(JIT::Imm32(argCount)); |
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stubCall.call(); |
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wasEval = branchPtr(NotEqual, regT0, ImmPtr(JSValue::encode(JSValue()))); |
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122 |
} |
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123 |
|
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emitGetVirtualRegister(callee, regT0); |
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|
125 |
|
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// Check for JSFunctions. |
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emitJumpSlowCaseIfNotJSCell(regT0); |
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addSlowCase(branchPtr(NotEqual, Address(regT0), ImmPtr(m_globalData->jsFunctionVPtr))); |
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|
129 |
|
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// Speculatively roll the callframe, assuming argCount will match the arity. |
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storePtr(callFrameRegister, Address(callFrameRegister, (RegisterFile::CallerFrame + registerOffset) * static_cast<int>(sizeof(Register)))); |
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addPtr(Imm32(registerOffset * static_cast<int>(sizeof(Register))), callFrameRegister); |
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|
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move(Imm32(argCount), regT1); |
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|
134 |
|
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|
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emitNakedCall(opcodeID == op_construct ? m_globalData->jitStubs->ctiVirtualConstruct() : m_globalData->jitStubs->ctiVirtualCall()); |
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|
136 |
|
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if (opcodeID == op_call_eval) |
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|
138 |
wasEval.link(this); |
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|
139 |
|
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|
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sampleCodeBlock(m_codeBlock); |
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141 |
} |
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|
142 |
|
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143 |
void JIT::compileOpCallSlowCase(Instruction* instruction, Vector<SlowCaseEntry>::iterator& iter, unsigned, OpcodeID opcodeID) |
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144 |
{ |
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int argCount = instruction[2].u.operand; |
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int registerOffset = instruction[3].u.operand; |
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|
147 |
|
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linkSlowCase(iter); |
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linkSlowCase(iter); |
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|
150 |
|
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|
151 |
JITStubCall stubCall(this, opcodeID == op_construct ? cti_op_construct_NotJSConstruct : cti_op_call_NotJSFunction); |
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152 |
stubCall.addArgument(regT0); |
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|
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stubCall.addArgument(JIT::Imm32(registerOffset)); |
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|
154 |
stubCall.addArgument(JIT::Imm32(argCount)); |
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|
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stubCall.call(); |
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|
156 |
|
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|
157 |
sampleCodeBlock(m_codeBlock); |
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|
158 |
} |
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|
159 |
|
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|
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#else // !ENABLE(JIT_OPTIMIZE_CALL) |
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|
161 |
|
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|
162 |
/* ------------------------------ BEGIN: ENABLE(JIT_OPTIMIZE_CALL) ------------------------------ */ |
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|
163 |
|
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|
164 |
void JIT::compileOpCall(OpcodeID opcodeID, Instruction* instruction, unsigned callLinkInfoIndex) |
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165 |
{ |
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int callee = instruction[1].u.operand; |
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|
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int argCount = instruction[2].u.operand; |
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int registerOffset = instruction[3].u.operand; |
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|
169 |
|
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// Handle eval |
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Jump wasEval; |
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|
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if (opcodeID == op_call_eval) { |
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|
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JITStubCall stubCall(this, cti_op_call_eval); |
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|
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stubCall.addArgument(callee, regT0); |
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|
175 |
stubCall.addArgument(JIT::Imm32(registerOffset)); |
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|
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stubCall.addArgument(JIT::Imm32(argCount)); |
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|
177 |
stubCall.call(); |
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|
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wasEval = branchPtr(NotEqual, regT0, ImmPtr(JSValue::encode(JSValue()))); |
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|
179 |
} |
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|
180 |
|
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// This plants a check for a cached JSFunction value, so we can plant a fast link to the callee. |
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// This deliberately leaves the callee in ecx, used when setting up the stack frame below |
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|
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emitGetVirtualRegister(callee, regT0); |
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|
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DataLabelPtr addressOfLinkedFunctionCheck; |
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|
185 |
|
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BEGIN_UNINTERRUPTED_SEQUENCE(sequenceOpCall); |
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|
187 |
|
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Jump jumpToSlow = branchPtrWithPatch(NotEqual, regT0, addressOfLinkedFunctionCheck, ImmPtr(JSValue::encode(JSValue()))); |
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|
189 |
|
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|
190 |
END_UNINTERRUPTED_SEQUENCE(sequenceOpCall); |
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|
191 |
|
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|
192 |
addSlowCase(jumpToSlow); |
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|
193 |
ASSERT_JIT_OFFSET(differenceBetween(addressOfLinkedFunctionCheck, jumpToSlow), patchOffsetOpCallCompareToJump); |
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|
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m_callStructureStubCompilationInfo[callLinkInfoIndex].hotPathBegin = addressOfLinkedFunctionCheck; |
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|
195 |
|
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196 |
// The following is the fast case, only used whan a callee can be linked. |
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|
197 |
|
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// Fast version of stack frame initialization, directly relative to edi. |
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199 |
// Note that this omits to set up RegisterFile::CodeBlock, which is set in the callee |
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loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_scopeChain) + OBJECT_OFFSETOF(ScopeChain, m_node)), regT1); // newScopeChain |
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store32(Imm32(argCount), Address(callFrameRegister, (registerOffset + RegisterFile::ArgumentCount) * static_cast<int>(sizeof(Register)))); |
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storePtr(callFrameRegister, Address(callFrameRegister, (registerOffset + RegisterFile::CallerFrame) * static_cast<int>(sizeof(Register)))); |
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storePtr(regT0, Address(callFrameRegister, (registerOffset + RegisterFile::Callee) * static_cast<int>(sizeof(Register)))); |
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storePtr(regT1, Address(callFrameRegister, (registerOffset + RegisterFile::ScopeChain) * static_cast<int>(sizeof(Register)))); |
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addPtr(Imm32(registerOffset * sizeof(Register)), callFrameRegister); |
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// Call to the callee |
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m_callStructureStubCompilationInfo[callLinkInfoIndex].hotPathOther = emitNakedCall(); |
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if (opcodeID == op_call_eval) |
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wasEval.link(this); |
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sampleCodeBlock(m_codeBlock); |
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} |
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void JIT::compileOpCallSlowCase(Instruction* instruction, Vector<SlowCaseEntry>::iterator& iter, unsigned callLinkInfoIndex, OpcodeID opcodeID) |
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{ |
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int argCount = instruction[2].u.operand; |
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int registerOffset = instruction[3].u.operand; |
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linkSlowCase(iter); |
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// Fast check for JS function. |
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Jump callLinkFailNotObject = emitJumpIfNotJSCell(regT0); |
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Jump callLinkFailNotJSFunction = branchPtr(NotEqual, Address(regT0), ImmPtr(m_globalData->jsFunctionVPtr)); |
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// Speculatively roll the callframe, assuming argCount will match the arity. |
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storePtr(callFrameRegister, Address(callFrameRegister, (RegisterFile::CallerFrame + registerOffset) * static_cast<int>(sizeof(Register)))); |
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addPtr(Imm32(registerOffset * static_cast<int>(sizeof(Register))), callFrameRegister); |
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move(Imm32(argCount), regT1); |
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m_callStructureStubCompilationInfo[callLinkInfoIndex].callReturnLocation = emitNakedCall(opcodeID == op_construct ? m_globalData->jitStubs->ctiVirtualConstructLink() : m_globalData->jitStubs->ctiVirtualCallLink()); |
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// Done! - return back to the hot path. |
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ASSERT(OPCODE_LENGTH(op_call) == OPCODE_LENGTH(op_call_eval)); |
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ASSERT(OPCODE_LENGTH(op_call) == OPCODE_LENGTH(op_construct)); |
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emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_call)); |
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// This handles host functions |
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callLinkFailNotObject.link(this); |
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callLinkFailNotJSFunction.link(this); |
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JITStubCall stubCall(this, opcodeID == op_construct ? cti_op_construct_NotJSConstruct : cti_op_call_NotJSFunction); |
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stubCall.addArgument(regT0); |
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stubCall.addArgument(JIT::Imm32(registerOffset)); |
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stubCall.addArgument(JIT::Imm32(argCount)); |
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stubCall.call(); |
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sampleCodeBlock(m_codeBlock); |
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} |
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/* ------------------------------ END: !ENABLE / ENABLE(JIT_OPTIMIZE_CALL) ------------------------------ */ |
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#endif // !ENABLE(JIT_OPTIMIZE_CALL) |
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} // namespace JSC |
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#endif // !USE(JSVALUE32_64) |
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#endif // ENABLE(JIT) |