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/*
* Copyright (C) 2008 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 MacroAssemblerX86_h
#define MacroAssemblerX86_h
#include <wtf/Platform.h>
#if ENABLE(ASSEMBLER) && PLATFORM(X86)
#include "MacroAssemblerX86Common.h"
namespace JSC {
class MacroAssemblerX86 : public MacroAssemblerX86Common {
public:
MacroAssemblerX86()
: m_isSSE2Present(isSSE2Present())
{
}
static const Scale ScalePtr = TimesFour;
using MacroAssemblerX86Common::add32;
using MacroAssemblerX86Common::and32;
using MacroAssemblerX86Common::sub32;
using MacroAssemblerX86Common::or32;
using MacroAssemblerX86Common::load32;
using MacroAssemblerX86Common::store32;
using MacroAssemblerX86Common::branch32;
using MacroAssemblerX86Common::call;
void add32(Imm32 imm, RegisterID src, RegisterID dest)
{
m_assembler.leal_mr(imm.m_value, src, dest);
}
void add32(Imm32 imm, AbsoluteAddress address)
{
m_assembler.addl_im(imm.m_value, address.m_ptr);
}
void addWithCarry32(Imm32 imm, AbsoluteAddress address)
{
m_assembler.adcl_im(imm.m_value, address.m_ptr);
}
void and32(Imm32 imm, AbsoluteAddress address)
{
m_assembler.andl_im(imm.m_value, address.m_ptr);
}
void or32(Imm32 imm, AbsoluteAddress address)
{
m_assembler.orl_im(imm.m_value, address.m_ptr);
}
void sub32(Imm32 imm, AbsoluteAddress address)
{
m_assembler.subl_im(imm.m_value, address.m_ptr);
}
void load32(void* address, RegisterID dest)
{
m_assembler.movl_mr(address, dest);
}
void store32(Imm32 imm, void* address)
{
m_assembler.movl_i32m(imm.m_value, address);
}
void store32(RegisterID src, void* address)
{
m_assembler.movl_rm(src, address);
}
Jump branch32(Condition cond, AbsoluteAddress left, RegisterID right)
{
m_assembler.cmpl_rm(right, left.m_ptr);
return Jump(m_assembler.jCC(x86Condition(cond)));
}
Jump branch32(Condition cond, AbsoluteAddress left, Imm32 right)
{
m_assembler.cmpl_im(right.m_value, left.m_ptr);
return Jump(m_assembler.jCC(x86Condition(cond)));
}
Call call()
{
return Call(m_assembler.call(), Call::Linkable);
}
Call tailRecursiveCall()
{
return Call::fromTailJump(jump());
}
Call makeTailRecursiveCall(Jump oldJump)
{
return Call::fromTailJump(oldJump);
}
DataLabelPtr moveWithPatch(ImmPtr initialValue, RegisterID dest)
{
m_assembler.movl_i32r(initialValue.asIntptr(), dest);
return DataLabelPtr(this);
}
Jump branchPtrWithPatch(Condition cond, RegisterID left, DataLabelPtr& dataLabel, ImmPtr initialRightValue = ImmPtr(0))
{
m_assembler.cmpl_ir_force32(initialRightValue.asIntptr(), left);
dataLabel = DataLabelPtr(this);
return Jump(m_assembler.jCC(x86Condition(cond)));
}
Jump branchPtrWithPatch(Condition cond, Address left, DataLabelPtr& dataLabel, ImmPtr initialRightValue = ImmPtr(0))
{
m_assembler.cmpl_im_force32(initialRightValue.asIntptr(), left.offset, left.base);
dataLabel = DataLabelPtr(this);
return Jump(m_assembler.jCC(x86Condition(cond)));
}
DataLabelPtr storePtrWithPatch(ImmPtr initialValue, ImplicitAddress address)
{
m_assembler.movl_i32m(initialValue.asIntptr(), address.offset, address.base);
return DataLabelPtr(this);
}
Label loadPtrWithPatchToLEA(Address address, RegisterID dest)
{
Label label(this);
load32(address, dest);
return label;
}
bool supportsFloatingPoint() const { return m_isSSE2Present; }
// See comment on MacroAssemblerARMv7::supportsFloatingPointTruncate()
bool supportsFloatingPointTruncate() const { return m_isSSE2Present; }
private:
const bool m_isSSE2Present;
};
} // namespace JSC
#endif // ENABLE(ASSEMBLER)
#endif // MacroAssemblerX86_h
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