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Bug 900257: Inline Math.fround in IonMonkey; r=sstangl

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This commit is contained in:
Benjamin Bouvier 2013-09-11 02:10:17 -07:00
parent e89c5e6c6b
commit 0e8b83129e
2 changed files with 31 additions and 0 deletions
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1
js/src/jit/IonBuilder.h
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@ -516,6 +516,7 @@ class IonBuilder : public MIRGenerator
InliningStatus inlineMathPow(CallInfo &callInfo);
InliningStatus inlineMathRandom(CallInfo &callInfo);
InliningStatus inlineMathImul(CallInfo &callInfo);
InliningStatus inlineMathFRound(CallInfo &callInfo);
InliningStatus inlineMathFunction(CallInfo &callInfo, MMathFunction::Function function);
// String natives.

30
js/src/jit/MCallOptimize.cpp
View File

@ -9,6 +9,7 @@
#include "builtin/ParallelArray.h"
#include "builtin/TestingFunctions.h"
#include "jit/IonBuilder.h"
#include "jit/Lowering.h"
#include "jit/MIR.h"
#include "jit/MIRGraph.h"
@ -55,6 +56,8 @@ IonBuilder::inlineNativeCall(CallInfo &callInfo, JSNative native)
return inlineMathRandom(callInfo);
if (native == js::math_imul)
return inlineMathImul(callInfo);
if (native == js::math_fround)
return inlineMathFRound(callInfo);
if (native == js::math_sin)
return inlineMathFunction(callInfo, MMathFunction::Sin);
if (native == js::math_cos)
@ -811,6 +814,33 @@ IonBuilder::inlineMathImul(CallInfo &callInfo)
return InliningStatus_Inlined;
}
IonBuilder::InliningStatus
IonBuilder::inlineMathFRound(CallInfo &callInfo)
{
if (!LIRGenerator::allowFloat32Optimizations())
return InliningStatus_NotInlined;
if (callInfo.argc() != 1 || callInfo.constructing())
return InliningStatus_NotInlined;
// MIRType can't be Float32, as this point, as getInlineReturnType uses JSVal types
// to infer the returned MIR type.
MIRType returnType = getInlineReturnType();
if (!IsNumberType(returnType))
return InliningStatus_NotInlined;
MIRType arg = callInfo.getArg(0)->type();
if (!IsNumberType(arg))
return InliningStatus_NotInlined;
callInfo.unwrapArgs();
MToFloat32 *ins = MToFloat32::New(callInfo.getArg(0));
current->add(ins);
current->push(ins);
return InliningStatus_Inlined;
}
IonBuilder::InliningStatus
IonBuilder::inlineMathMinMax(CallInfo &callInfo, bool max)
{