diff options
Diffstat (limited to 'lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 6e6d2f5ad0..b33fd82fc1 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -7949,9 +7949,9 @@ bool X86TargetLowering::isNarrowingProfitable(EVT VT1, EVT VT2) const { bool X86TargetLowering::isShuffleMaskLegal(const SmallVectorImpl<int> &M, EVT VT) const { - // Only do shuffles on 128-bit vector types for now. + // Very little shuffling can be done for 64-bit vectors right now. if (VT.getSizeInBits() == 64) - return false; + return isPALIGNRMask(M, VT, Subtarget->hasSSSE3()); // FIXME: pshufb, blends, shifts. return (VT.getVectorNumElements() == 2 || |