diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2012-05-03 16:50:55 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2012-05-03 16:50:55 +0000 |
| commit | b61ab53cb789e568acbb2952fbead20ab853a696 (patch) | |
| tree | 8575c732129e272992ac5d7b4c2519238fff4735 /lib/Target/X86/Utils/X86ShuffleDecode.cpp | |
| parent | 63faed5b8e4f2755f127fcb8aa440480c0649327 (diff) | |
Diffstat (limited to 'lib/Target/X86/Utils/X86ShuffleDecode.cpp')
| -rw-r--r-- | lib/Target/X86/Utils/X86ShuffleDecode.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Target/X86/Utils/X86ShuffleDecode.cpp b/lib/Target/X86/Utils/X86ShuffleDecode.cpp index 32c722acc437..a802333002d8 100644 --- a/lib/Target/X86/Utils/X86ShuffleDecode.cpp +++ b/lib/Target/X86/Utils/X86ShuffleDecode.cpp @@ -169,6 +169,9 @@ void DecodeUNPCKLMask(EVT VT, SmallVectorImpl<int> &ShuffleMask) { void DecodeVPERM2X128Mask(EVT VT, unsigned Imm, SmallVectorImpl<int> &ShuffleMask) { + if (Imm & 0x88) + return; // Not a shuffle + unsigned HalfSize = VT.getVectorNumElements()/2; unsigned FstHalfBegin = (Imm & 0x3) * HalfSize; unsigned SndHalfBegin = ((Imm >> 4) & 0x3) * HalfSize; |