diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 1f352ae4772..8a63163cade 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -33266,12 +33266,15 @@ static SDValue foldShuffleOfHorizOp(SDNode *N) { // the result is the same as the high half. If a target shuffle is also // replicating low and high halves, we don't need the shuffle. if (Opcode == X86ISD::MOVDDUP || Opcode == X86ISD::VBROADCAST) { - // movddup (hadd X, X) --> hadd X, X - // broadcast (extract_vec_elt (hadd X, X), 0) --> hadd X, X - assert((HOp.getValueType() == MVT::v2f64 || - HOp.getValueType() == MVT::v4f64) && HOp.getValueType() == VT && - "Unexpected type for h-op"); - return HOp; + if (HOp.getScalarValueSizeInBits() == 64) { + // movddup (hadd X, X) --> hadd X, X + // broadcast (extract_vec_elt (hadd X, X), 0) --> hadd X, X + assert((HOp.getValueType() == MVT::v2f64 || + HOp.getValueType() == MVT::v4f64) && HOp.getValueType() == VT && + "Unexpected type for h-op"); + return HOp; + } + return SDValue(); } // shuffle (hadd X, X), undef, [low half...high half] --> hadd X, X |
