MacroAssemblerX86.h [plain text]
#ifndef MacroAssemblerX86_h
#define MacroAssemblerX86_h
#if ENABLE(ASSEMBLER) && CPU(X86)
#include "MacroAssemblerX86Common.h"
namespace JSC {
class MacroAssemblerX86 : public MacroAssemblerX86Common {
public:
static const Scale ScalePtr = TimesFour;
using MacroAssemblerX86Common::add32;
using MacroAssemblerX86Common::and32;
using MacroAssemblerX86Common::branchAdd32;
using MacroAssemblerX86Common::branchSub32;
using MacroAssemblerX86Common::sub32;
using MacroAssemblerX86Common::or32;
using MacroAssemblerX86Common::load32;
using MacroAssemblerX86Common::store32;
using MacroAssemblerX86Common::branch32;
using MacroAssemblerX86Common::call;
using MacroAssemblerX86Common::jump;
using MacroAssemblerX86Common::addDouble;
using MacroAssemblerX86Common::loadDouble;
using MacroAssemblerX86Common::storeDouble;
using MacroAssemblerX86Common::convertInt32ToDouble;
void add32(TrustedImm32 imm, RegisterID src, RegisterID dest)
{
m_assembler.leal_mr(imm.m_value, src, dest);
}
void add32(TrustedImm32 imm, AbsoluteAddress address)
{
m_assembler.addl_im(imm.m_value, address.m_ptr);
}
void add64(TrustedImm32 imm, AbsoluteAddress address)
{
m_assembler.addl_im(imm.m_value, address.m_ptr);
m_assembler.adcl_im(imm.m_value >> 31, reinterpret_cast<const char*>(address.m_ptr) + sizeof(int32_t));
}
void and32(TrustedImm32 imm, AbsoluteAddress address)
{
m_assembler.andl_im(imm.m_value, address.m_ptr);
}
void or32(TrustedImm32 imm, AbsoluteAddress address)
{
m_assembler.orl_im(imm.m_value, address.m_ptr);
}
void sub32(TrustedImm32 imm, AbsoluteAddress address)
{
m_assembler.subl_im(imm.m_value, address.m_ptr);
}
void load32(const void* address, RegisterID dest)
{
m_assembler.movl_mr(address, dest);
}
void addDouble(AbsoluteAddress address, FPRegisterID dest)
{
m_assembler.addsd_mr(address.m_ptr, dest);
}
void storeDouble(FPRegisterID src, const void* address)
{
ASSERT(isSSE2Present());
m_assembler.movsd_rm(src, address);
}
void convertInt32ToDouble(AbsoluteAddress src, FPRegisterID dest)
{
m_assembler.cvtsi2sd_mr(src.m_ptr, dest);
}
void store32(TrustedImm32 imm, void* address)
{
m_assembler.movl_i32m(imm.m_value, address);
}
void store32(RegisterID src, void* address)
{
m_assembler.movl_rm(src, address);
}
Jump branchAdd32(ResultCondition cond, TrustedImm32 imm, AbsoluteAddress dest)
{
m_assembler.addl_im(imm.m_value, dest.m_ptr);
return Jump(m_assembler.jCC(x86Condition(cond)));
}
Jump branchSub32(ResultCondition cond, TrustedImm32 imm, AbsoluteAddress dest)
{
m_assembler.subl_im(imm.m_value, dest.m_ptr);
return Jump(m_assembler.jCC(x86Condition(cond)));
}
Jump branch32(RelationalCondition cond, AbsoluteAddress left, RegisterID right)
{
m_assembler.cmpl_rm(right, left.m_ptr);
return Jump(m_assembler.jCC(x86Condition(cond)));
}
Jump branch32(RelationalCondition cond, AbsoluteAddress left, TrustedImm32 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);
}
void jump(AbsoluteAddress address)
{
m_assembler.jmp_m(address.m_ptr);
}
Call tailRecursiveCall()
{
return Call::fromTailJump(jump());
}
Call makeTailRecursiveCall(Jump oldJump)
{
return Call::fromTailJump(oldJump);
}
DataLabelPtr moveWithPatch(TrustedImmPtr initialValue, RegisterID dest)
{
m_assembler.movl_i32r(initialValue.asIntptr(), dest);
return DataLabelPtr(this);
}
Jump branchPtrWithPatch(RelationalCondition cond, RegisterID left, DataLabelPtr& dataLabel, TrustedImmPtr initialRightValue = TrustedImmPtr(0))
{
m_assembler.cmpl_ir_force32(initialRightValue.asIntptr(), left);
dataLabel = DataLabelPtr(this);
return Jump(m_assembler.jCC(x86Condition(cond)));
}
Jump branchPtrWithPatch(RelationalCondition cond, Address left, DataLabelPtr& dataLabel, TrustedImmPtr initialRightValue = TrustedImmPtr(0))
{
m_assembler.cmpl_im_force32(initialRightValue.asIntptr(), left.offset, left.base);
dataLabel = DataLabelPtr(this);
return Jump(m_assembler.jCC(x86Condition(cond)));
}
DataLabelPtr storePtrWithPatch(TrustedImmPtr initialValue, ImplicitAddress address)
{
m_assembler.movl_i32m(initialValue.asIntptr(), address.offset, address.base);
return DataLabelPtr(this);
}
static bool supportsFloatingPoint() { return isSSE2Present(); }
static bool supportsFloatingPointTruncate() { return isSSE2Present(); }
static bool supportsFloatingPointSqrt() { return isSSE2Present(); }
static bool supportsFloatingPointAbs() { return isSSE2Present(); }
static FunctionPtr readCallTarget(CodeLocationCall call)
{
intptr_t offset = reinterpret_cast<int32_t*>(call.dataLocation())[-1];
return FunctionPtr(reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(call.dataLocation()) + offset));
}
private:
friend class LinkBuffer;
friend class RepatchBuffer;
static void linkCall(void* code, Call call, FunctionPtr function)
{
X86Assembler::linkCall(code, call.m_label, function.value());
}
static void repatchCall(CodeLocationCall call, CodeLocationLabel destination)
{
X86Assembler::relinkCall(call.dataLocation(), destination.executableAddress());
}
static void repatchCall(CodeLocationCall call, FunctionPtr destination)
{
X86Assembler::relinkCall(call.dataLocation(), destination.executableAddress());
}
};
}
#endif // ENABLE(ASSEMBLER)
#endif // MacroAssemblerX86_h