[llvm] r295051 - [X86][SSE] Tidyup matchVectorShuffleWithUNPCK helper function call.
Simon Pilgrim via llvm-commits
llvm-commits at lists.llvm.org
Tue Feb 14 04:54:39 PST 2017
Author: rksimon
Date: Tue Feb 14 06:54:39 2017
New Revision: 295051
URL: http://llvm.org/viewvc/llvm-project?rev=295051&view=rev
Log:
[X86][SSE] Tidyup matchVectorShuffleWithUNPCK helper function call.
Don't bother setting the V1/V2 operands again for unary shuffles.
Don't bother legalizing the value type unless the match succeeds.
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=295051&r1=295050&r2=295051&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Tue Feb 14 06:54:39 2017
@@ -26608,15 +26608,11 @@ static bool matchBinaryVectorShuffle(MVT
(MaskVT.is256BitVector() && 32 <= EltSizeInBits && Subtarget.hasAVX()) ||
(MaskVT.is256BitVector() && Subtarget.hasAVX2()) ||
(MaskVT.is512BitVector() && Subtarget.hasAVX512())) {
- MVT LegalVT = MaskVT;
- if (LegalVT.is256BitVector() && !Subtarget.hasAVX2())
- LegalVT = (32 == EltSizeInBits ? MVT::v8f32 : MVT::v4f64);
-
if (matchVectorShuffleWithUNPCK(MaskVT, V1, IsUnary ? V1 : V2, Shuffle,
IsUnary, Mask)) {
- if (IsUnary)
- V2 = V1;
- ShuffleVT = LegalVT;
+ ShuffleVT = MaskVT;
+ if (ShuffleVT.is256BitVector() && !Subtarget.hasAVX2())
+ ShuffleVT = (32 == EltSizeInBits ? MVT::v8f32 : MVT::v4f64);
return true;
}
}
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