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Introduce MoveDouble to the X64 MacroAssembler

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R=danno@chromium.org

Review URL: https://codereview.chromium.org/26216008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17383 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
haitao.feng@intel.com 2013-10-25 02:12:17 +00:00
parent c042ef360d
commit 4ea4cb9462
5 changed files with 8 additions and 6 deletions
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2
src/x64/code-stubs-x64.cc
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@ -594,7 +594,7 @@ void TranscendentalCacheStub::Generate(MacroAssembler* masm) {
// Input is a HeapNumber. Push it on the FPU stack and load its
// bits into rbx.
__ fld_d(FieldOperand(rax, HeapNumber::kValueOffset));
__ movq(rbx, FieldOperand(rax, HeapNumber::kValueOffset));
__ MoveDouble(rbx, FieldOperand(rax, HeapNumber::kValueOffset));
__ movq(rdx, rbx);
__ bind(&loaded);

2
src/x64/codegen-x64.cc
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@ -466,7 +466,7 @@ void ElementsTransitionGenerator::GenerateDoubleToObject(
// Non-hole double, copy value into a heap number.
__ AllocateHeapNumber(rax, r15, &gc_required);
// rax: new heap number
__ movq(FieldOperand(rax, HeapNumber::kValueOffset), r14);
__ MoveDouble(FieldOperand(rax, HeapNumber::kValueOffset), r14);
__ movq(FieldOperand(r11,
r9,
times_pointer_size,

4
src/x64/lithium-codegen-x64.cc
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@ -3315,10 +3315,10 @@ void LCodeGen::DoDeferredMathAbsTaggedHeapNumber(LMathAbs* instr) {
__ LoadFromSafepointRegisterSlot(input_reg, input_reg);
__ bind(&allocated);
__ movq(tmp2, FieldOperand(input_reg, HeapNumber::kValueOffset));
__ MoveDouble(tmp2, FieldOperand(input_reg, HeapNumber::kValueOffset));
__ shl(tmp2, Immediate(1));
__ shr(tmp2, Immediate(1));
__ movq(FieldOperand(tmp, HeapNumber::kValueOffset), tmp2);
__ MoveDouble(FieldOperand(tmp, HeapNumber::kValueOffset), tmp2);
__ StoreToSafepointRegisterSlot(input_reg, tmp);
__ bind(&done);

2
src/x64/macro-assembler-x64.h
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@ -829,6 +829,8 @@ class MacroAssembler: public Assembler {
void Pop(Register dst) { pop(dst); }
void PushReturnAddressFrom(Register src) { push(src); }
void PopReturnAddressTo(Register dst) { pop(dst); }
void MoveDouble(Register dst, const Operand& src) { movq(dst, src); }
void MoveDouble(const Operand& dst, Register src) { movq(dst, src); }
// Control Flow
void Jump(Address destination, RelocInfo::Mode rmode);

4
src/x64/stub-cache-x64.cc
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@ -2440,7 +2440,7 @@ Handle<Code> CallStubCompiler::CompileMathAbsCall(
// Check if the argument is a heap number and load its value.
__ bind(&not_smi);
__ CheckMap(rax, factory()->heap_number_map(), &slow, DONT_DO_SMI_CHECK);
__ movq(rbx, FieldOperand(rax, HeapNumber::kValueOffset));
__ MoveDouble(rbx, FieldOperand(rax, HeapNumber::kValueOffset));
// Check the sign of the argument. If the argument is positive,
// just return it.
@ -2458,7 +2458,7 @@ Handle<Code> CallStubCompiler::CompileMathAbsCall(
__ bind(&negative_sign);
__ xor_(rbx, rdi);
__ AllocateHeapNumber(rax, rdx, &slow);
__ movq(FieldOperand(rax, HeapNumber::kValueOffset), rbx);
__ MoveDouble(FieldOperand(rax, HeapNumber::kValueOffset), rbx);
__ ret(2 * kPointerSize);
// Tail call the full function. We do not have to patch the receiver