/*
- * Copyright (C) 2008 Apple Inc. All rights reserved.
+ * Copyright (C) 2008, 2013 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
#include "Arguments.h"
#include "CodeBlock.h"
#include "Interpreter.h"
-#include "JITInlineMethods.h"
+#include "JITInlines.h"
#include "JITStubCall.h"
#include "JSArray.h"
#include "JSFunction.h"
+#include "Operations.h"
+#include "RepatchBuffer.h"
#include "ResultType.h"
#include "SamplingTool.h"
+#include <wtf/StringPrintStream.h>
#ifndef NDEBUG
#include <stdio.h>
void JIT::emit_op_ret(Instruction* currentInstruction)
{
- emitOptimizationCheck(RetOptimizationCheck);
-
unsigned dst = currentInstruction[1].u.operand;
emitLoad(dst, regT1, regT0);
- emitGetFromCallFrameHeaderPtr(RegisterFile::ReturnPC, regT2);
- emitGetFromCallFrameHeaderPtr(RegisterFile::CallerFrame, callFrameRegister);
+ emitGetFromCallFrameHeaderPtr(JSStack::ReturnPC, regT2);
+ emitGetFromCallFrameHeaderPtr(JSStack::CallerFrame, callFrameRegister);
restoreReturnAddressBeforeReturn(regT2);
ret();
void JIT::emit_op_ret_object_or_this(Instruction* currentInstruction)
{
- emitOptimizationCheck(RetOptimizationCheck);
-
unsigned result = currentInstruction[1].u.operand;
unsigned thisReg = currentInstruction[2].u.operand;
loadPtr(Address(regT0, JSCell::structureOffset()), regT2);
Jump notObject = emitJumpIfNotObject(regT2);
- emitGetFromCallFrameHeaderPtr(RegisterFile::ReturnPC, regT2);
- emitGetFromCallFrameHeaderPtr(RegisterFile::CallerFrame, callFrameRegister);
+ emitGetFromCallFrameHeaderPtr(JSStack::ReturnPC, regT2);
+ emitGetFromCallFrameHeaderPtr(JSStack::CallerFrame, callFrameRegister);
restoreReturnAddressBeforeReturn(regT2);
ret();
notObject.link(this);
emitLoad(thisReg, regT1, regT0);
- emitGetFromCallFrameHeaderPtr(RegisterFile::ReturnPC, regT2);
- emitGetFromCallFrameHeaderPtr(RegisterFile::CallerFrame, callFrameRegister);
+ emitGetFromCallFrameHeaderPtr(JSStack::ReturnPC, regT2);
+ emitGetFromCallFrameHeaderPtr(JSStack::CallerFrame, callFrameRegister);
restoreReturnAddressBeforeReturn(regT2);
ret();
JumpList slowCase;
JumpList end;
- if (m_codeBlock->usesArguments() && arguments == m_codeBlock->argumentsRegister()) {
+ bool canOptimize = m_codeBlock->usesArguments()
+ && arguments == m_codeBlock->argumentsRegister()
+ && !m_codeBlock->symbolTable()->slowArguments();
+
+ if (canOptimize) {
emitLoadTag(arguments, regT1);
slowCase.append(branch32(NotEqual, regT1, TrustedImm32(JSValue::EmptyValueTag)));
- load32(payloadFor(RegisterFile::ArgumentCount), regT2);
+ load32(payloadFor(JSStack::ArgumentCount), regT2);
slowCase.append(branch32(Above, regT2, TrustedImm32(Arguments::MaxArguments + 1)));
// regT2: argumentCountIncludingThis
move(regT2, regT3);
- add32(TrustedImm32(firstFreeRegister + RegisterFile::CallFrameHeaderSize), regT3);
+ add32(TrustedImm32(firstFreeRegister + JSStack::CallFrameHeaderSize), regT3);
lshift32(TrustedImm32(3), regT3);
addPtr(callFrameRegister, regT3);
// regT3: newCallFrame
- slowCase.append(branchPtr(Below, AbsoluteAddress(m_globalData->interpreter->registerFile().addressOfEnd()), regT3));
+ slowCase.append(branchPtr(Below, AbsoluteAddress(m_vm->interpreter->stack().addressOfEnd()), regT3));
// Initialize ArgumentCount.
- store32(regT2, payloadFor(RegisterFile::ArgumentCount, regT3));
+ store32(regT2, payloadFor(JSStack::ArgumentCount, regT3));
// Initialize 'this'.
emitLoad(thisValue, regT1, regT0);
end.append(jump());
}
- if (m_codeBlock->usesArguments() && arguments == m_codeBlock->argumentsRegister())
+ if (canOptimize)
slowCase.link(this);
JITStubCall stubCall(this, cti_op_load_varargs);
stubCall.addArgument(Imm32(firstFreeRegister));
stubCall.call(regT3);
- if (m_codeBlock->usesArguments() && arguments == m_codeBlock->argumentsRegister())
+ if (canOptimize)
end.link(this);
}
JITStubCall stubCall(this, cti_op_call_eval); // Initializes ScopeChain; ReturnPC; CodeBlock.
stubCall.call();
addSlowCase(branch32(Equal, regT1, TrustedImm32(JSValue::EmptyValueTag)));
- emitGetFromCallFrameHeaderPtr(RegisterFile::CallerFrame, callFrameRegister);
+ emitGetFromCallFrameHeaderPtr(JSStack::CallerFrame, callFrameRegister);
sampleCodeBlock(m_codeBlock);
}
{
linkSlowCase(iter);
- emitLoad(RegisterFile::Callee, regT1, regT0);
- emitNakedCall(m_globalData->jitStubs->ctiVirtualCall());
+ emitLoad(JSStack::Callee, regT1, regT0);
+ emitNakedCall(m_vm->getCTIStub(virtualCallGenerator).code());
sampleCodeBlock(m_codeBlock);
}
else {
int argCount = instruction[2].u.operand;
int registerOffset = instruction[3].u.operand;
-
+
+ if (opcodeID == op_call && shouldEmitProfiling()) {
+ emitLoad(registerOffset + CallFrame::argumentOffsetIncludingThis(0), regT0, regT1);
+ Jump done = branch32(NotEqual, regT0, TrustedImm32(JSValue::CellTag));
+ loadPtr(Address(regT1, JSCell::structureOffset()), regT1);
+ storePtr(regT1, instruction[5].u.arrayProfile->addressOfLastSeenStructure());
+ done.link(this);
+ }
+
addPtr(TrustedImm32(registerOffset * sizeof(Register)), callFrameRegister, regT3);
- store32(TrustedImm32(argCount), payloadFor(RegisterFile::ArgumentCount, regT3));
+ store32(TrustedImm32(argCount), payloadFor(JSStack::ArgumentCount, regT3));
} // regT3 holds newCallFrame with ArgumentCount initialized.
- storePtr(TrustedImmPtr(instruction), tagFor(RegisterFile::ArgumentCount, callFrameRegister));
+ storePtr(TrustedImmPtr(instruction), tagFor(JSStack::ArgumentCount, callFrameRegister));
emitLoad(callee, regT1, regT0); // regT1, regT0 holds callee.
- storePtr(callFrameRegister, Address(regT3, RegisterFile::CallerFrame * static_cast<int>(sizeof(Register))));
- emitStore(RegisterFile::Callee, regT1, regT0, regT3);
+ storePtr(callFrameRegister, Address(regT3, JSStack::CallerFrame * static_cast<int>(sizeof(Register))));
+ emitStore(JSStack::Callee, regT1, regT0, regT3);
move(regT3, callFrameRegister);
if (opcodeID == op_call_eval) {
return;
}
+ addSlowCase(branch32(NotEqual, regT1, TrustedImm32(JSValue::CellTag)));
+
DataLabelPtr addressOfLinkedFunctionCheck;
BEGIN_UNINTERRUPTED_SEQUENCE(sequenceOpCall);
Jump slowCase = branchPtrWithPatch(NotEqual, regT0, addressOfLinkedFunctionCheck, TrustedImmPtr(0));
END_UNINTERRUPTED_SEQUENCE(sequenceOpCall);
addSlowCase(slowCase);
- addSlowCase(branch32(NotEqual, regT1, TrustedImm32(JSValue::CellTag)));
ASSERT(m_callStructureStubCompilationInfo.size() == callLinkInfoIndex);
m_callStructureStubCompilationInfo.append(StructureStubCompilationInfo());
m_callStructureStubCompilationInfo[callLinkInfoIndex].callType = CallLinkInfo::callTypeFor(opcodeID);
m_callStructureStubCompilationInfo[callLinkInfoIndex].bytecodeIndex = m_bytecodeOffset;
- loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_scopeChain)), regT1);
- emitPutCellToCallFrameHeader(regT1, RegisterFile::ScopeChain);
+ loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_scope)), regT1);
+ emitPutCellToCallFrameHeader(regT1, JSStack::ScopeChain);
m_callStructureStubCompilationInfo[callLinkInfoIndex].hotPathOther = emitNakedCall();
sampleCodeBlock(m_codeBlock);
linkSlowCase(iter);
linkSlowCase(iter);
- m_callStructureStubCompilationInfo[callLinkInfoIndex].callReturnLocation = emitNakedCall(opcodeID == op_construct ? m_globalData->jitStubs->ctiVirtualConstructLink() : m_globalData->jitStubs->ctiVirtualCallLink());
+ m_callStructureStubCompilationInfo[callLinkInfoIndex].callReturnLocation = emitNakedCall(opcodeID == op_construct ? m_vm->getCTIStub(linkConstructGenerator).code() : m_vm->getCTIStub(linkCallGenerator).code());
sampleCodeBlock(m_codeBlock);
}
+void JIT::privateCompileClosureCall(CallLinkInfo* callLinkInfo, CodeBlock* calleeCodeBlock, Structure* expectedStructure, ExecutableBase* expectedExecutable, MacroAssemblerCodePtr codePtr)
+{
+ JumpList slowCases;
+
+ slowCases.append(branch32(NotEqual, regT1, TrustedImm32(JSValue::CellTag)));
+ slowCases.append(branchPtr(NotEqual, Address(regT0, JSCell::structureOffset()), TrustedImmPtr(expectedStructure)));
+ slowCases.append(branchPtr(NotEqual, Address(regT0, JSFunction::offsetOfExecutable()), TrustedImmPtr(expectedExecutable)));
+
+ loadPtr(Address(regT0, JSFunction::offsetOfScopeChain()), regT1);
+ emitPutCellToCallFrameHeader(regT1, JSStack::ScopeChain);
+
+ Call call = nearCall();
+ Jump done = jump();
+
+ slowCases.link(this);
+ move(TrustedImmPtr(callLinkInfo->callReturnLocation.executableAddress()), regT2);
+ restoreReturnAddressBeforeReturn(regT2);
+ Jump slow = jump();
+
+ LinkBuffer patchBuffer(*m_vm, this, m_codeBlock);
+
+ patchBuffer.link(call, FunctionPtr(codePtr.executableAddress()));
+ patchBuffer.link(done, callLinkInfo->hotPathOther.labelAtOffset(0));
+ patchBuffer.link(slow, CodeLocationLabel(m_vm->getCTIStub(virtualCallGenerator).code()));
+
+ RefPtr<ClosureCallStubRoutine> stubRoutine = adoptRef(new ClosureCallStubRoutine(
+ FINALIZE_CODE(
+ patchBuffer,
+ ("Baseline closure call stub for %s, return point %p, target %p (%s)",
+ toCString(*m_codeBlock).data(),
+ callLinkInfo->hotPathOther.labelAtOffset(0).executableAddress(),
+ codePtr.executableAddress(),
+ toCString(pointerDump(calleeCodeBlock)).data())),
+ *m_vm, m_codeBlock->ownerExecutable(), expectedStructure, expectedExecutable,
+ callLinkInfo->codeOrigin));
+
+ RepatchBuffer repatchBuffer(m_codeBlock);
+
+ repatchBuffer.replaceWithJump(
+ RepatchBuffer::startOfBranchPtrWithPatchOnRegister(callLinkInfo->hotPathBegin),
+ CodeLocationLabel(stubRoutine->code().code()));
+ repatchBuffer.relink(callLinkInfo->callReturnLocation, m_vm->getCTIStub(virtualCallGenerator).code());
+
+ callLinkInfo->stub = stubRoutine.release();
+}
+
} // namespace JSC
#endif // USE(JSVALUE32_64)
projects / apple / javascriptcore.git / blobdiff