diff options
Diffstat (limited to 'lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index fc97c4edd0..8b5104f7c7 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -3942,17 +3942,17 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) { else if (isIdentityMask(PermMask.getNode(), true)) return V2; + // Canonicalize movddup shuffles. + if (V2IsUndef && Subtarget->hasSSE2() && + X86::isMOVDDUPMask(PermMask.getNode())) + return CanonicalizeMovddup(Op, V1, PermMask, DAG, Subtarget->hasSSE3()); + if (isSplatMask(PermMask.getNode())) { if (isMMX || NumElems < 4) return Op; // Promote it to a v4{if}32 splat. return PromoteSplat(Op, DAG, Subtarget->hasSSE2()); } - // Canonicalize movddup shuffles. - if (V2IsUndef && Subtarget->hasSSE2() && - X86::isMOVDDUPMask(PermMask.getNode())) - return CanonicalizeMovddup(Op, V1, PermMask, DAG, Subtarget->hasSSE3()); - // If the shuffle can be profitably rewritten as a narrower shuffle, then // do it! if (VT == MVT::v8i16 || VT == MVT::v16i8) { |