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Unified Diff: src/ia32/lithium-codegen-ia32.cc

Issue 27197013: Tweak Math.log on ia32/x64 (Closed) Base URL: git://github.com/v8/v8.git@master
Patch Set: addressed comments Created 7 years, 2 months ago
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Index: src/ia32/lithium-codegen-ia32.cc
diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc
index 8adc25c6394de7e84b4025fc570b49b750cd3485..4b0a7b2e4e460e8f72a3cb30f376893c52964e7d 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -257,7 +257,7 @@ bool LCodeGen::GeneratePrologue() {
BitVector* doubles = chunk()->allocated_double_registers();
BitVector::Iterator save_iterator(doubles);
while (!save_iterator.Done()) {
- __ movdbl(MemOperand(esp, count * kDoubleSize),
+ __ movsd(MemOperand(esp, count * kDoubleSize),
XMMRegister::FromAllocationIndex(save_iterator.Current()));
save_iterator.Advance();
count++;
@@ -2233,8 +2233,8 @@ void LCodeGen::DoArithmeticD(LArithmeticD* instr) {
case Token::MOD: {
// Pass two doubles as arguments on the stack.
__ PrepareCallCFunction(4, eax);
- __ movdbl(Operand(esp, 0 * kDoubleSize), left);
- __ movdbl(Operand(esp, 1 * kDoubleSize), right);
+ __ movsd(Operand(esp, 0 * kDoubleSize), left);
+ __ movsd(Operand(esp, 1 * kDoubleSize), right);
__ CallCFunction(
ExternalReference::double_fp_operation(Token::MOD, isolate()),
4);
@@ -2243,7 +2243,7 @@ void LCodeGen::DoArithmeticD(LArithmeticD* instr) {
// Store it into the result register.
__ sub(Operand(esp), Immediate(kDoubleSize));
__ fstp_d(Operand(esp, 0));
- __ movdbl(result, Operand(esp, 0));
+ __ movsd(result, Operand(esp, 0));
__ add(Operand(esp), Immediate(kDoubleSize));
break;
}
@@ -2617,7 +2617,7 @@ void LCodeGen::DoCmpHoleAndBranch(LCmpHoleAndBranch* instr) {
if (use_sse2) {
CpuFeatureScope scope(masm(), SSE2);
XMMRegister input_reg = ToDoubleRegister(instr->object());
- __ movdbl(MemOperand(esp, 0), input_reg);
+ __ movsd(MemOperand(esp, 0), input_reg);
} else {
__ fstp_d(MemOperand(esp, 0));
}
@@ -3079,7 +3079,7 @@ void LCodeGen::DoReturn(LReturn* instr) {
BitVector::Iterator save_iterator(doubles);
int count = 0;
while (!save_iterator.Done()) {
- __ movdbl(XMMRegister::FromAllocationIndex(save_iterator.Current()),
+ __ movsd(XMMRegister::FromAllocationIndex(save_iterator.Current()),
MemOperand(esp, count * kDoubleSize));
save_iterator.Advance();
count++;
@@ -3247,7 +3247,7 @@ void LCodeGen::DoLoadNamedField(LLoadNamedField* instr) {
if (CpuFeatures::IsSupported(SSE2)) {
CpuFeatureScope scope(masm(), SSE2);
XMMRegister result = ToDoubleRegister(instr->result());
- __ movdbl(result, FieldOperand(object, offset));
+ __ movsd(result, FieldOperand(object, offset));
} else {
X87Mov(ToX87Register(instr->result()), FieldOperand(object, offset));
}
@@ -3401,7 +3401,7 @@ void LCodeGen::DoLoadKeyedExternalArray(LLoadKeyed* instr) {
} else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) {
if (CpuFeatures::IsSupported(SSE2)) {
CpuFeatureScope scope(masm(), SSE2);
- __ movdbl(ToDoubleRegister(instr->result()), operand);
+ __ movsd(ToDoubleRegister(instr->result()), operand);
} else {
X87Mov(ToX87Register(instr->result()), operand);
}
@@ -3472,7 +3472,7 @@ void LCodeGen::DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr) {
if (CpuFeatures::IsSupported(SSE2)) {
CpuFeatureScope scope(masm(), SSE2);
XMMRegister result = ToDoubleRegister(instr->result());
- __ movdbl(result, double_load_operand);
+ __ movsd(result, double_load_operand);
} else {
X87Mov(ToX87Register(instr->result()), double_load_operand);
}
@@ -3995,7 +3995,7 @@ void LCodeGen::DoMathRound(LMathRound* instr) {
ExternalReference::address_of_minus_one_half();
Label done, round_to_zero, below_one_half, do_not_compensate;
- __ movdbl(xmm_scratch, Operand::StaticVariable(one_half));
+ __ movsd(xmm_scratch, Operand::StaticVariable(one_half));
__ ucomisd(xmm_scratch, input_reg);
__ j(above, &below_one_half);
@@ -4009,7 +4009,7 @@ void LCodeGen::DoMathRound(LMathRound* instr) {
__ jmp(&done);
__ bind(&below_one_half);
- __ movdbl(xmm_scratch, Operand::StaticVariable(minus_one_half));
+ __ movsd(xmm_scratch, Operand::StaticVariable(minus_one_half));
__ ucomisd(xmm_scratch, input_reg);
__ j(below_equal, &round_to_zero);
@@ -4196,22 +4196,21 @@ void LCodeGen::DoMathLog(LMathLog* instr) {
__ j(equal, &zero, Label::kNear);
ExternalReference nan =
ExternalReference::address_of_canonical_non_hole_nan();
- __ movdbl(input_reg, Operand::StaticVariable(nan));
+ __ movsd(input_reg, Operand::StaticVariable(nan));
__ jmp(&done, Label::kNear);
__ bind(&zero);
- __ push(Immediate(0xFFF00000));
- __ push(Immediate(0));
- __ movdbl(input_reg, Operand(esp, 0));
- __ add(Operand(esp), Immediate(kDoubleSize));
+ ExternalReference ninf =
+ ExternalReference::address_of_negative_infinity();
+ __ movsd(input_reg, Operand::StaticVariable(ninf));
__ jmp(&done, Label::kNear);
__ bind(&positive);
__ fldln2();
__ sub(Operand(esp), Immediate(kDoubleSize));
- __ movdbl(Operand(esp, 0), input_reg);
+ __ movsd(Operand(esp, 0), input_reg);
__ fld_d(Operand(esp, 0));
__ fyl2x();
__ fstp_d(Operand(esp, 0));
- __ movdbl(input_reg, Operand(esp, 0));
+ __ movsd(input_reg, Operand(esp, 0));
__ add(Operand(esp), Immediate(kDoubleSize));
__ bind(&done);
}
@@ -4482,7 +4481,7 @@ void LCodeGen::DoStoreNamedField(LStoreNamedField* instr) {
if (CpuFeatures::IsSupported(SSE2)) {
CpuFeatureScope scope(masm(), SSE2);
XMMRegister value = ToDoubleRegister(instr->value());
- __ movdbl(FieldOperand(object, offset), value);
+ __ movsd(FieldOperand(object, offset), value);
} else {
X87Register value = ToX87Register(instr->value());
X87Mov(FieldOperand(object, offset), value);
@@ -4632,7 +4631,7 @@ void LCodeGen::DoStoreKeyedExternalArray(LStoreKeyed* instr) {
} else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) {
if (CpuFeatures::IsSafeForSnapshot(SSE2)) {
CpuFeatureScope scope(masm(), SSE2);
- __ movdbl(operand, ToDoubleRegister(instr->value()));
+ __ movsd(operand, ToDoubleRegister(instr->value()));
} else {
X87Mov(operand, ToX87Register(instr->value()));
}
@@ -4690,11 +4689,11 @@ void LCodeGen::DoStoreKeyedFixedDoubleArray(LStoreKeyed* instr) {
__ ucomisd(value, value);
__ j(parity_odd, &have_value); // NaN.
- __ movdbl(value, Operand::StaticVariable(canonical_nan_reference));
+ __ movsd(value, Operand::StaticVariable(canonical_nan_reference));
__ bind(&have_value);
}
- __ movdbl(double_store_operand, value);
+ __ movsd(double_store_operand, value);
} else {
// Can't use SSE2 in the serializer
if (instr->hydrogen()->IsConstantHoleStore()) {
@@ -5160,7 +5159,7 @@ void LCodeGen::DoDeferredNumberTagI(LInstruction* instr,
__ bind(&done);
if (CpuFeatures::IsSupported(SSE2)) {
CpuFeatureScope feature_scope(masm(), SSE2);
- __ movdbl(FieldOperand(reg, HeapNumber::kValueOffset), xmm_scratch);
+ __ movsd(FieldOperand(reg, HeapNumber::kValueOffset), xmm_scratch);
} else {
__ fstp_d(FieldOperand(reg, HeapNumber::kValueOffset));
}
@@ -5204,7 +5203,7 @@ void LCodeGen::DoNumberTagD(LNumberTagD* instr) {
if (use_sse2) {
CpuFeatureScope scope(masm(), SSE2);
XMMRegister input_reg = ToDoubleRegister(instr->value());
- __ movdbl(FieldOperand(reg, HeapNumber::kValueOffset), input_reg);
+ __ movsd(FieldOperand(reg, HeapNumber::kValueOffset), input_reg);
} else {
__ fstp_d(FieldOperand(reg, HeapNumber::kValueOffset));
}
@@ -5347,7 +5346,7 @@ void LCodeGen::EmitNumberUntagD(Register input_reg,
}
// Heap number to XMM conversion.
- __ movdbl(result_reg, FieldOperand(input_reg, HeapNumber::kValueOffset));
+ __ movsd(result_reg, FieldOperand(input_reg, HeapNumber::kValueOffset));
if (deoptimize_on_minus_zero) {
XMMRegister xmm_scratch = double_scratch0();
@@ -5369,7 +5368,7 @@ void LCodeGen::EmitNumberUntagD(Register input_reg,
ExternalReference nan =
ExternalReference::address_of_canonical_non_hole_nan();
- __ movdbl(result_reg, Operand::StaticVariable(nan));
+ __ movsd(result_reg, Operand::StaticVariable(nan));
__ jmp(&done, Label::kNear);
}
} else {
@@ -5758,7 +5757,7 @@ void LCodeGen::DoClampTToUint8(LClampTToUint8* instr) {
// Heap number
__ bind(&heap_number);
- __ movdbl(xmm_scratch, FieldOperand(input_reg, HeapNumber::kValueOffset));
+ __ movsd(xmm_scratch, FieldOperand(input_reg, HeapNumber::kValueOffset));
__ ClampDoubleToUint8(xmm_scratch, temp_xmm_reg, input_reg);
__ jmp(&done, Label::kNear);
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