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/*
* Copyright (C) 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
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef JITInlineCacheGenerator_h
#define JITInlineCacheGenerator_h
#if ENABLE(JIT)
#include "CodeOrigin.h"
#include "JITOperations.h"
#include "JSCJSValue.h"
#include "PutKind.h"
#include "RegisterSet.h"
namespace JSC {
class CodeBlock;
class JITInlineCacheGenerator {
protected:
JITInlineCacheGenerator() { }
JITInlineCacheGenerator(CodeBlock*, CodeOrigin);
public:
StructureStubInfo* stubInfo() const { return m_stubInfo; }
protected:
CodeBlock* m_codeBlock;
StructureStubInfo* m_stubInfo;
};
class JITByIdGenerator : public JITInlineCacheGenerator {
protected:
JITByIdGenerator() { }
JITByIdGenerator(
CodeBlock*, CodeOrigin, const RegisterSet&, GPRReg callFrameRegister,
JSValueRegs base, JSValueRegs value, bool registersFlushed);
public:
void reportSlowPathCall(MacroAssembler::Label slowPathBegin, MacroAssembler::Call call)
{
m_slowPathBegin = slowPathBegin;
m_call = call;
}
MacroAssembler::Label slowPathBegin() const { return m_slowPathBegin; }
MacroAssembler::Jump slowPathJump() const { return m_structureCheck.m_jump; }
void finalize(LinkBuffer& fastPathLinkBuffer, LinkBuffer& slowPathLinkBuffer);
void finalize(LinkBuffer&);
protected:
void generateFastPathChecks(MacroAssembler&, GPRReg butterfly);
JSValueRegs m_base;
JSValueRegs m_value;
MacroAssembler::DataLabelPtr m_structureImm;
MacroAssembler::PatchableJump m_structureCheck;
MacroAssembler::ConvertibleLoadLabel m_propertyStorageLoad;
AssemblerLabel m_loadOrStore;
#if USE(JSVALUE32_64)
AssemblerLabel m_tagLoadOrStore;
#endif
MacroAssembler::Label m_done;
MacroAssembler::Label m_slowPathBegin;
MacroAssembler::Call m_call;
};
class JITGetByIdGenerator : public JITByIdGenerator {
public:
JITGetByIdGenerator() { }
JITGetByIdGenerator(
CodeBlock* codeBlock, CodeOrigin codeOrigin, const RegisterSet& usedRegisters,
GPRReg callFrameRegister, JSValueRegs base, JSValueRegs value,
bool registersFlushed)
: JITByIdGenerator(
codeBlock, codeOrigin, usedRegisters, callFrameRegister, base, value,
registersFlushed)
{
}
void generateFastPath(MacroAssembler&);
};
class JITPutByIdGenerator : public JITByIdGenerator {
public:
JITPutByIdGenerator() { }
JITPutByIdGenerator(
CodeBlock*, CodeOrigin, const RegisterSet& usedRegisters, GPRReg callFrameRegister,
JSValueRegs base, JSValueRegs value, GPRReg scratch, bool registersFlushed,
ECMAMode, PutKind);
void generateFastPath(MacroAssembler&);
V_JITOperation_ESsiJJI slowPathFunction();
private:
GPRReg m_scratch;
ECMAMode m_ecmaMode;
PutKind m_putKind;
};
} // namespace JSC
#endif // ENABLE(JIT)
#endif // JITInlineCacheGenerator_h
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