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Bug 1225908 - SimdTypeToArrayElementType. r=bbouvier

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This function returns the typed array element type that corresponds to the
lanes in a SIMD vector type. It is used to handle SIMD loads and stores from a
typed array.
This commit is contained in:
Jakob Stoklund Olesen 2015-11-19 10:37:18 -08:00
parent a687ecc81e
commit 12062418b8
1 changed files with 5 additions and 3 deletions
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8
js/src/jit/MCallOptimize.cpp
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@ -3473,8 +3473,10 @@ IonBuilder::inlineSimdShuffle(CallInfo& callInfo, JSNative native, SimdTypeDescr
return boxSimd(callInfo, ins, templateObj); return boxSimd(callInfo, ins, templateObj);
} }
// Get the typed array element type corresponding to the lanes in a SIMD vector type.
// This only applies to SIMD types that can be loaded and stored to a typed array.
static Scalar::Type static Scalar::Type
SimdTypeToScalarType(SimdTypeDescr::Type type) SimdTypeToArrayElementType(SimdTypeDescr::Type type)
{ {
switch (type) { switch (type) {
case SimdTypeDescr::Float32x4: return Scalar::Float32x4; case SimdTypeDescr::Float32x4: return Scalar::Float32x4;
@ -3538,7 +3540,7 @@ IonBuilder::inlineSimdLoad(CallInfo& callInfo, JSNative native, SimdTypeDescr::T
if (!checkInlineSimd(callInfo, native, type, 2, &templateObj)) if (!checkInlineSimd(callInfo, native, type, 2, &templateObj))
return InliningStatus_NotInlined; return InliningStatus_NotInlined;
Scalar::Type simdType = SimdTypeToScalarType(type); Scalar::Type simdType = SimdTypeToArrayElementType(type);
MDefinition* index = nullptr; MDefinition* index = nullptr;
MInstruction* elements = nullptr; MInstruction* elements = nullptr;
@ -3561,7 +3563,7 @@ IonBuilder::inlineSimdStore(CallInfo& callInfo, JSNative native, SimdTypeDescr::
if (!checkInlineSimd(callInfo, native, type, 3, &templateObj)) if (!checkInlineSimd(callInfo, native, type, 3, &templateObj))
return InliningStatus_NotInlined; return InliningStatus_NotInlined;
Scalar::Type simdType = SimdTypeToScalarType(type); Scalar::Type simdType = SimdTypeToArrayElementType(type);
MDefinition* index = nullptr; MDefinition* index = nullptr;
MInstruction* elements = nullptr; MInstruction* elements = nullptr;