Reviewers: Weiliang, Yang,
Message:
weiliang.
please review this porting patch.
It's only the framework for X87 port. we will
implement it in the future.
thanks.
Description:
X87: Inline Math.fround in optimized code.
port r22665.
original commit message:
Inline Math.fround in optimized code.
BUG=
Please review this at https://codereview.chromium.org/429143003/
SVN Base: https://chromium.googlesource.com/external/v8.git@bleeding_edge
Affected files (+24, -0 lines):
M src/x87/lithium-codegen-x87.cc
M src/x87/lithium-x87.h
M src/x87/lithium-x87.cc
Index: src/x87/lithium-codegen-x87.cc
diff --git a/src/x87/lithium-codegen-x87.cc b/src/x87/lithium-codegen-x87.cc
index
c32e5de24aeb2c2e966b702c46fc80da5e8819ab..a7c5a9fbdf51fb705d01cd854969f5bb06d8e672
100644
--- a/src/x87/lithium-codegen-x87.cc
+++ b/src/x87/lithium-codegen-x87.cc
@@ -3733,6 +3733,10 @@ void LCodeGen::DoMathRound(LMathRound* instr) {
UNIMPLEMENTED();
}
+void LCodeGen::DoMathFround(LMathFround* instr) {
+ UNIMPLEMENTED();
+}
+
void LCodeGen::DoMathSqrt(LMathSqrt* instr) {
UNIMPLEMENTED();
Index: src/x87/lithium-x87.cc
diff --git a/src/x87/lithium-x87.cc b/src/x87/lithium-x87.cc
index
290f4f21fa796d9b5d83dceae258f56f00c4d570..361b20be0b2fd2ffc8feec862de0c6870b821949
100644
--- a/src/x87/lithium-x87.cc
+++ b/src/x87/lithium-x87.cc
@@ -1148,6 +1148,7 @@ LInstruction*
LChunkBuilder::DoUnaryMathOperation(HUnaryMathOperation* instr) {
switch (instr->op()) {
case kMathFloor: return DoMathFloor(instr);
case kMathRound: return DoMathRound(instr);
+ case kMathFround: return DoMathFround(instr);
case kMathAbs: return DoMathAbs(instr);
case kMathLog: return DoMathLog(instr);
case kMathExp: return DoMathExp(instr);
@@ -1175,6 +1176,13 @@ LInstruction*
LChunkBuilder::DoMathRound(HUnaryMathOperation* instr) {
}
+LInstruction* LChunkBuilder::DoMathFround(HUnaryMathOperation* instr) {
+ LOperand* input = UseRegisterAtStart(instr->value());
+ LMathFround* result = new (zone()) LMathFround(input);
+ return AssignEnvironment(DefineAsRegister(result));
+}
+
+
LInstruction* LChunkBuilder::DoMathAbs(HUnaryMathOperation* instr) {
LOperand* context = UseAny(instr->context()); // Deferred use.
LOperand* input = UseRegisterAtStart(instr->value());
Index: src/x87/lithium-x87.h
diff --git a/src/x87/lithium-x87.h b/src/x87/lithium-x87.h
index
ea76738ba7451db688daf12d0f62e13355a12d2e..ec7418b410db2c89b58057f054b0d5a6fbde6462
100644
--- a/src/x87/lithium-x87.h
+++ b/src/x87/lithium-x87.h
@@ -112,6 +112,7 @@ class LCodeGen;
V(MathClz32) \
V(MathExp) \
V(MathFloor) \
+ V(MathFround) \
V(MathLog) \
V(MathMinMax) \
V(MathPowHalf) \
@@ -873,6 +874,16 @@ class LMathRound V8_FINAL : public
LTemplateInstruction<1, 1, 0> {
};
+class LMathFround V8_FINAL : public LTemplateInstruction<1, 1, 0> {
+ public:
+ explicit LMathFround(LOperand* value) { inputs_[0] = value; }
+
+ LOperand* value() { return inputs_[0]; }
+
+ DECLARE_CONCRETE_INSTRUCTION(MathFround, "math-fround")
+};
+
+
class LMathAbs V8_FINAL : public LTemplateInstruction<1, 2, 0> {
public:
LMathAbs(LOperand* context, LOperand* value) {
@@ -2751,6 +2762,7 @@ class LChunkBuilder V8_FINAL : public
LChunkBuilderBase {
LInstruction* DoMathFloor(HUnaryMathOperation* instr);
LInstruction* DoMathRound(HUnaryMathOperation* instr);
+ LInstruction* DoMathFround(HUnaryMathOperation* instr);
LInstruction* DoMathAbs(HUnaryMathOperation* instr);
LInstruction* DoMathLog(HUnaryMathOperation* instr);
LInstruction* DoMathExp(HUnaryMathOperation* instr);
--
--
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