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[X86][AVX] Call lowerVectorShuffleWithSHUFPS directly instead of calling DAG.getVectorShuffle (PR27885) 

We've already done the hardwork of ensuring the mask is safe for 'SHUFPS'.

llvm-svn: 289950
This commit is contained in:
Simon Pilgrim 2016-12-16 15:23:32 +00:00
parent 95cc3456e8
commit 4b73c3de50
1 changed files with 4 additions and 3 deletions
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7
llvm/lib/Target/X86/X86ISelLowering.cpp
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@ -12281,7 +12281,8 @@ static SDValue lowerV8I32VectorShuffle(const SDLoc &DL, ArrayRef<int> Mask,
if (Is128BitLaneRepeatedShuffle && isSingleSHUFPSMask(RepeatedMask)) { if (Is128BitLaneRepeatedShuffle && isSingleSHUFPSMask(RepeatedMask)) {
SDValue CastV1 = DAG.getBitcast(MVT::v8f32, V1); SDValue CastV1 = DAG.getBitcast(MVT::v8f32, V1);
SDValue CastV2 = DAG.getBitcast(MVT::v8f32, V2); SDValue CastV2 = DAG.getBitcast(MVT::v8f32, V2);
SDValue ShufPS = DAG.getVectorShuffle(MVT::v8f32, DL, CastV1, CastV2, Mask); SDValue ShufPS = lowerVectorShuffleWithSHUFPS(DL, MVT::v8f32, RepeatedMask,
CastV1, CastV2, DAG);
return DAG.getBitcast(MVT::v8i32, ShufPS); return DAG.getBitcast(MVT::v8i32, ShufPS);
} }
@ -12768,8 +12769,8 @@ static SDValue lowerV16I32VectorShuffle(const SDLoc &DL, ArrayRef<int> Mask,
if (Is128BitLaneRepeatedShuffle && isSingleSHUFPSMask(RepeatedMask)) { if (Is128BitLaneRepeatedShuffle && isSingleSHUFPSMask(RepeatedMask)) {
SDValue CastV1 = DAG.getBitcast(MVT::v16f32, V1); SDValue CastV1 = DAG.getBitcast(MVT::v16f32, V1);
SDValue CastV2 = DAG.getBitcast(MVT::v16f32, V2); SDValue CastV2 = DAG.getBitcast(MVT::v16f32, V2);
SDValue ShufPS = SDValue ShufPS = lowerVectorShuffleWithSHUFPS(DL, MVT::v16f32, RepeatedMask,
DAG.getVectorShuffle(MVT::v16f32, DL, CastV1, CastV2, Mask); CastV1, CastV2, DAG);
return DAG.getBitcast(MVT::v16i32, ShufPS); return DAG.getBitcast(MVT::v16i32, ShufPS);
} }