[llvm] r289950 - [X86][AVX] Call lowerVectorShuffleWithSHUFPS directly instead of calling DAG.getVectorShuffle (PR27885)

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Fri Dec 16 09:23:32 2016
New Revision: 289950

URL: http://llvm.org/viewvc/llvm-project?rev=289950&view=rev
Log:
[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'.

Modified:
    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=289950&r1=289949&r2=289950&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Fri Dec 16 09:23:32 2016
@@ -12281,7 +12281,8 @@ static SDValue lowerV8I32VectorShuffle(c
   if (Is128BitLaneRepeatedShuffle && isSingleSHUFPSMask(RepeatedMask)) {
     SDValue CastV1 = DAG.getBitcast(MVT::v8f32, V1);
     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);
   }
 
@@ -12768,8 +12769,8 @@ static SDValue lowerV16I32VectorShuffle(
   if (Is128BitLaneRepeatedShuffle && isSingleSHUFPSMask(RepeatedMask)) {
     SDValue CastV1 = DAG.getBitcast(MVT::v16f32, V1);
     SDValue CastV2 = DAG.getBitcast(MVT::v16f32, V2);
-    SDValue ShufPS =
-        DAG.getVectorShuffle(MVT::v16f32, DL, CastV1, CastV2, Mask);
+    SDValue ShufPS = lowerVectorShuffleWithSHUFPS(DL, MVT::v16f32, RepeatedMask,
+                                                  CastV1, CastV2, DAG);
     return DAG.getBitcast(MVT::v16i32, ShufPS);
   }