Revision: 24586
Author: [email protected]
Date: Tue Oct 14 08:52:50 2014 UTC
Log: Version 3.29.88.8 (merged r24189, r24226, r24271)
X87: fixed branch distances.
X87: fix the bug which is introduced by R24169.
X87: fix the Sqrt issue.
[email protected]
BUG=
Review URL: https://codereview.chromium.org/653893002
https://code.google.com/p/v8/source/detail?r=24586
Modified:
/branches/3.29/src/version.cc
/branches/3.29/src/x87/lithium-codegen-x87.cc
/branches/3.29/src/x87/lithium-x87.cc
/branches/3.29/src/x87/lithium-x87.h
=======================================
--- /branches/3.29/src/version.cc Tue Oct 14 08:37:10 2014 UTC
+++ /branches/3.29/src/version.cc Tue Oct 14 08:52:50 2014 UTC
@@ -35,7 +35,7 @@
#define MAJOR_VERSION 3
#define MINOR_VERSION 29
#define BUILD_NUMBER 88
-#define PATCH_LEVEL 7
+#define PATCH_LEVEL 8
// Use 1 for candidates and 0 otherwise.
// (Boolean macro values are not supported by all preprocessors.)
#define IS_CANDIDATE_VERSION 0
=======================================
--- /branches/3.29/src/x87/lithium-codegen-x87.cc Thu Sep 25 00:05:09 2014
UTC
+++ /branches/3.29/src/x87/lithium-codegen-x87.cc Tue Oct 14 08:52:50 2014
UTC
@@ -4021,12 +4021,65 @@
void LCodeGen::DoMathSqrt(LMathSqrt* instr) {
- X87Register input_reg = ToX87Register(instr->value());
- X87Register output_reg = ToX87Register(instr->result());
- DCHECK(output_reg.is(input_reg));
- USE(output_reg);
- X87Fxch(input_reg);
- __ fsqrt();
+ X87Register input = ToX87Register(instr->value());
+ X87Register result_reg = ToX87Register(instr->result());
+ Register temp_result = ToRegister(instr->temp1());
+ Register temp = ToRegister(instr->temp2());
+ Label slow, done, smi, finish;
+ DCHECK(result_reg.is(input));
+
+ // Store input into Heap number and call runtime function kMathExpRT.
+ if (FLAG_inline_new) {
+ __ AllocateHeapNumber(temp_result, temp, no_reg, &slow);
+ __ jmp(&done, Label::kNear);
+ }
+
+ // Slow case: Call the runtime system to do the number allocation.
+ __ bind(&slow);
+ {
+ // TODO(3095996): Put a valid pointer value in the stack slot where the
+ // result register is stored, as this register is in the pointer map,
but
+ // contains an integer value.
+ __ Move(temp_result, Immediate(0));
+
+ // Preserve the value of all registers.
+ PushSafepointRegistersScope scope(this);
+
+ __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+ __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber);
+ RecordSafepointWithRegisters(
+ instr->pointer_map(), 0, Safepoint::kNoLazyDeopt);
+ __ StoreToSafepointRegisterSlot(temp_result, eax);
+ }
+ __ bind(&done);
+ X87LoadForUsage(input);
+ __ fstp_d(FieldOperand(temp_result, HeapNumber::kValueOffset));
+
+ {
+ // Preserve the value of all registers.
+ PushSafepointRegistersScope scope(this);
+
+ __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+ __ push(temp_result);
+ __ CallRuntimeSaveDoubles(Runtime::kMathSqrtRT);
+ RecordSafepointWithRegisters(
+ instr->pointer_map(), 0, Safepoint::kNoLazyDeopt);
+ __ StoreToSafepointRegisterSlot(temp_result, eax);
+ }
+ X87PrepareToWrite(result_reg);
+ // return value of MathExpRT is Smi or Heap Number.
+ __ JumpIfSmi(temp_result, &smi);
+ // Heap number(double)
+ __ fld_d(FieldOperand(temp_result, HeapNumber::kValueOffset));
+ __ jmp(&finish);
+ // SMI
+ __ bind(&smi);
+ __ SmiUntag(temp_result);
+ __ push(temp_result);
+ __ fild_s(MemOperand(esp, 0));
+ __ pop(temp_result);
+ __ bind(&finish);
+ X87CommitWrite(result_reg);
}
@@ -5302,9 +5355,10 @@
Label lost_precision, is_nan, minus_zero, done;
X87Register input_reg = ToX87Register(input);
X87Fxch(input_reg);
+ Label::Distance dist = DeoptEveryNTimes() ? Label::kFar : Label::kNear;
__ X87TOSToI(result_reg, instr->hydrogen()->GetMinusZeroMode(),
- &lost_precision, &is_nan, &minus_zero, Label::kNear);
- __ jmp(&done, Label::kNear);
+ &lost_precision, &is_nan, &minus_zero, dist);
+ __ jmp(&done);
__ bind(&lost_precision);
DeoptimizeIf(no_condition, instr, "lost precision");
__ bind(&is_nan);
@@ -5326,10 +5380,10 @@
Label lost_precision, is_nan, minus_zero, done;
X87Register input_reg = ToX87Register(input);
X87Fxch(input_reg);
+ Label::Distance dist = DeoptEveryNTimes() ? Label::kFar : Label::kNear;
__ X87TOSToI(result_reg, instr->hydrogen()->GetMinusZeroMode(),
- &lost_precision, &is_nan, &minus_zero,
- DeoptEveryNTimes() ? Label::kFar : Label::kNear);
- __ jmp(&done, Label::kNear);
+ &lost_precision, &is_nan, &minus_zero, dist);
+ __ jmp(&done);
__ bind(&lost_precision);
DeoptimizeIf(no_condition, instr, "lost precision");
__ bind(&is_nan);
=======================================
--- /branches/3.29/src/x87/lithium-x87.cc Mon Oct 13 12:12:16 2014 UTC
+++ /branches/3.29/src/x87/lithium-x87.cc Tue Oct 14 08:52:50 2014 UTC
@@ -1252,8 +1252,10 @@
LInstruction* LChunkBuilder::DoMathSqrt(HUnaryMathOperation* instr) {
LOperand* input = UseRegisterAtStart(instr->value());
- LMathSqrt* result = new(zone()) LMathSqrt(input);
- return DefineSameAsFirst(result);
+ LOperand* temp1 = FixedTemp(ecx);
+ LOperand* temp2 = FixedTemp(edx);
+ LMathSqrt* result = new(zone()) LMathSqrt(input, temp1, temp2);
+ return MarkAsCall(DefineSameAsFirst(result), instr);
}
=======================================
--- /branches/3.29/src/x87/lithium-x87.h Mon Oct 13 12:12:16 2014 UTC
+++ /branches/3.29/src/x87/lithium-x87.h Tue Oct 14 08:52:50 2014 UTC
@@ -973,13 +973,19 @@
};
-class LMathSqrt FINAL : public LTemplateInstruction<1, 1, 0> {
+class LMathSqrt FINAL : public LTemplateInstruction<1, 1, 2> {
public:
- explicit LMathSqrt(LOperand* value) {
+ explicit LMathSqrt(LOperand* value,
+ LOperand* temp1,
+ LOperand* temp2) {
inputs_[0] = value;
+ temps_[0] = temp1;
+ temps_[1] = temp2;
}
LOperand* value() { return inputs_[0]; }
+ LOperand* temp1() { return temps_[0]; }
+ LOperand* temp2() { return temps_[1]; }
DECLARE_CONCRETE_INSTRUCTION(MathSqrt, "math-sqrt")
};
--
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