diff options
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 07db9d7f13f..e72cc5e87be 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -32459,9 +32459,13 @@ static SDValue XFormVExtractWithShuffleIntoLoad(SDNode *N, SelectionDAG &DAG, if (Idx == SM_SentinelUndef) return DAG.getUNDEF(EltVT); + // Bail if any mask element is SM_SentinelZero - getVectorShuffle below + // won't handle it. + if (llvm::any_of(ShuffleMask, [](int M) { return M == SM_SentinelZero; })) + return SDValue(); + assert(0 <= Idx && Idx < (int)(2 * NumElems) && "Shuffle index out of range"); - SDValue LdNode = (Idx < (int)NumElems) ? ShuffleOps[0] - : ShuffleOps[1]; + SDValue LdNode = (Idx < (int)NumElems) ? ShuffleOps[0] : ShuffleOps[1]; // If inputs to shuffle are the same for both ops, then allow 2 uses unsigned AllowedUses = |
