/*
- * Copyright (C) 2008 Apple Inc. All rights reserved.
+ * Copyright (C) 2008, 2014 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
using MacroAssemblerX86Common::sub32;
using MacroAssemblerX86Common::or32;
using MacroAssemblerX86Common::load32;
+ using MacroAssemblerX86Common::load8;
using MacroAssemblerX86Common::store32;
+ using MacroAssemblerX86Common::store8;
using MacroAssemblerX86Common::branch32;
using MacroAssemblerX86Common::call;
using MacroAssemblerX86Common::jump;
using MacroAssemblerX86Common::loadDouble;
using MacroAssemblerX86Common::storeDouble;
using MacroAssemblerX86Common::convertInt32ToDouble;
+ using MacroAssemblerX86Common::branch8;
+ using MacroAssemblerX86Common::branchTest8;
void add32(TrustedImm32 imm, RegisterID src, RegisterID dest)
{
m_assembler.addl_im(imm.m_value, address.m_ptr);
}
+ void add32(AbsoluteAddress address, RegisterID dest)
+ {
+ m_assembler.addl_mr(address.m_ptr, dest);
+ }
+
void add64(TrustedImm32 imm, AbsoluteAddress address)
{
m_assembler.addl_im(imm.m_value, address.m_ptr);
{
m_assembler.orl_im(imm.m_value, address.m_ptr);
}
-
+
+ void or32(RegisterID reg, AbsoluteAddress address)
+ {
+ m_assembler.orl_rm(reg, address.m_ptr);
+ }
+
void sub32(TrustedImm32 imm, AbsoluteAddress address)
{
m_assembler.subl_im(imm.m_value, address.m_ptr);
{
m_assembler.movl_mr(address, dest);
}
+
+ void load8(const void* address, RegisterID dest)
+ {
+ m_assembler.movzbl_mr(address, dest);
+ }
+
+ void abortWithReason(AbortReason reason)
+ {
+ move(TrustedImm32(reason), X86Registers::eax);
+ breakpoint();
+ }
+
+ void abortWithReason(AbortReason reason, intptr_t misc)
+ {
+ move(TrustedImm32(misc), X86Registers::edx);
+ abortWithReason(reason);
+ }
+
+ ConvertibleLoadLabel convertibleLoadPtr(Address address, RegisterID dest)
+ {
+ ConvertibleLoadLabel result = ConvertibleLoadLabel(this);
+ m_assembler.movl_mr(address.offset, address.base, dest);
+ return result;
+ }
void addDouble(AbsoluteAddress address, FPRegisterID dest)
{
m_assembler.addsd_mr(address.m_ptr, dest);
}
- void storeDouble(FPRegisterID src, const void* address)
+ void storeDouble(FPRegisterID src, TrustedImmPtr address)
{
ASSERT(isSSE2Present());
- m_assembler.movsd_rm(src, address);
+ ASSERT(address.m_value);
+ m_assembler.movsd_rm(src, address.m_value);
}
void convertInt32ToDouble(AbsoluteAddress src, FPRegisterID dest)
{
m_assembler.movl_rm(src, address);
}
+
+ void store8(RegisterID src, void* address)
+ {
+ m_assembler.movb_rm(src, address);
+ }
+
+ void store8(TrustedImm32 imm, void* address)
+ {
+ ASSERT(-128 <= imm.m_value && imm.m_value < 128);
+ m_assembler.movb_i8m(imm.m_value, address);
+ }
+
+ void moveDoubleToInts(FPRegisterID src, RegisterID dest1, RegisterID dest2)
+ {
+ ASSERT(isSSE2Present());
+ m_assembler.pextrw_irr(3, src, dest1);
+ m_assembler.pextrw_irr(2, src, dest2);
+ lshift32(TrustedImm32(16), dest1);
+ or32(dest1, dest2);
+ movePackedToInt32(src, dest1);
+ }
+
+ void moveIntsToDouble(RegisterID src1, RegisterID src2, FPRegisterID dest, FPRegisterID scratch)
+ {
+ moveInt32ToPacked(src1, dest);
+ moveInt32ToPacked(src2, scratch);
+ lshiftPacked(TrustedImm32(32), scratch);
+ orPacked(scratch, dest);
+ }
Jump branchAdd32(ResultCondition cond, TrustedImm32 imm, AbsoluteAddress dest)
{
DataLabelPtr moveWithPatch(TrustedImmPtr initialValue, RegisterID dest)
{
+ padBeforePatch();
m_assembler.movl_i32r(initialValue.asIntptr(), dest);
return DataLabelPtr(this);
}
+
+ Jump branch8(RelationalCondition cond, AbsoluteAddress left, TrustedImm32 right)
+ {
+ m_assembler.cmpb_im(right.m_value, left.m_ptr);
+ return Jump(m_assembler.jCC(x86Condition(cond)));
+ }
+
+ Jump branchTest8(ResultCondition cond, AbsoluteAddress address, TrustedImm32 mask = TrustedImm32(-1))
+ {
+ ASSERT(mask.m_value >= -128 && mask.m_value <= 255);
+ if (mask.m_value == -1)
+ m_assembler.cmpb_im(0, address.m_ptr);
+ else
+ m_assembler.testb_im(mask.m_value, address.m_ptr);
+ return Jump(m_assembler.jCC(x86Condition(cond)));
+ }
Jump branchPtrWithPatch(RelationalCondition cond, RegisterID left, DataLabelPtr& dataLabel, TrustedImmPtr initialRightValue = TrustedImmPtr(0))
{
+ padBeforePatch();
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))
{
+ padBeforePatch();
m_assembler.cmpl_im_force32(initialRightValue.asIntptr(), left.offset, left.base);
dataLabel = DataLabelPtr(this);
return Jump(m_assembler.jCC(x86Condition(cond)));
}
+ Jump branch32WithPatch(RelationalCondition cond, Address left, DataLabel32& dataLabel, TrustedImm32 initialRightValue = TrustedImm32(0))
+ {
+ padBeforePatch();
+ m_assembler.cmpl_im_force32(initialRightValue.m_value, left.offset, left.base);
+ dataLabel = DataLabel32(this);
+ return Jump(m_assembler.jCC(x86Condition(cond)));
+ }
+
DataLabelPtr storePtrWithPatch(TrustedImmPtr initialValue, ImplicitAddress address)
{
+ padBeforePatch();
m_assembler.movl_i32m(initialValue.asIntptr(), address.offset, address.base);
return DataLabelPtr(this);
}
static bool supportsFloatingPoint() { return isSSE2Present(); }
- // See comment on MacroAssemblerARMv7::supportsFloatingPointTruncate()
static bool supportsFloatingPointTruncate() { return isSSE2Present(); }
static bool supportsFloatingPointSqrt() { return isSSE2Present(); }
static bool supportsFloatingPointAbs() { return isSSE2Present(); }
return FunctionPtr(reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(call.dataLocation()) + offset));
}
+ static bool canJumpReplacePatchableBranchPtrWithPatch() { return true; }
+ static bool canJumpReplacePatchableBranch32WithPatch() { return true; }
+
+ static CodeLocationLabel startOfBranchPtrWithPatchOnRegister(CodeLocationDataLabelPtr label)
+ {
+ const int opcodeBytes = 1;
+ const int modRMBytes = 1;
+ const int immediateBytes = 4;
+ const int totalBytes = opcodeBytes + modRMBytes + immediateBytes;
+ ASSERT(totalBytes >= maxJumpReplacementSize());
+ return label.labelAtOffset(-totalBytes);
+ }
+
+ static CodeLocationLabel startOfPatchableBranchPtrWithPatchOnAddress(CodeLocationDataLabelPtr label)
+ {
+ const int opcodeBytes = 1;
+ const int modRMBytes = 1;
+ const int offsetBytes = 0;
+ const int immediateBytes = 4;
+ const int totalBytes = opcodeBytes + modRMBytes + offsetBytes + immediateBytes;
+ ASSERT(totalBytes >= maxJumpReplacementSize());
+ return label.labelAtOffset(-totalBytes);
+ }
+
+ static CodeLocationLabel startOfPatchableBranch32WithPatchOnAddress(CodeLocationDataLabel32 label)
+ {
+ const int opcodeBytes = 1;
+ const int modRMBytes = 1;
+ const int offsetBytes = 0;
+ const int immediateBytes = 4;
+ const int totalBytes = opcodeBytes + modRMBytes + offsetBytes + immediateBytes;
+ ASSERT(totalBytes >= maxJumpReplacementSize());
+ return label.labelAtOffset(-totalBytes);
+ }
+
+ static void revertJumpReplacementToBranchPtrWithPatch(CodeLocationLabel instructionStart, RegisterID reg, void* initialValue)
+ {
+ X86Assembler::revertJumpTo_cmpl_ir_force32(instructionStart.executableAddress(), reinterpret_cast<intptr_t>(initialValue), reg);
+ }
+
+ static void revertJumpReplacementToPatchableBranchPtrWithPatch(CodeLocationLabel instructionStart, Address address, void* initialValue)
+ {
+ ASSERT(!address.offset);
+ X86Assembler::revertJumpTo_cmpl_im_force32(instructionStart.executableAddress(), reinterpret_cast<intptr_t>(initialValue), 0, address.base);
+ }
+
+ static void revertJumpReplacementToPatchableBranch32WithPatch(CodeLocationLabel instructionStart, Address address, int32_t initialValue)
+ {
+ ASSERT(!address.offset);
+ X86Assembler::revertJumpTo_cmpl_im_force32(instructionStart.executableAddress(), initialValue, 0, address.base);
+ }
+
private:
friend class LinkBuffer;
friend class RepatchBuffer;
projects / apple / javascriptcore.git / blobdiff