diff options
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 175d23750e..f7aae14bba 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -13563,6 +13563,9 @@ static SDValue PerformSTORECombine(SDNode *N, SelectionDAG &DAG, // From, To sizes and ElemCount must be pow of two if (!isPowerOf2_32(NumElems * FromSz * ToSz)) return SDValue(); + // We are going to use the original vector elt for storing. + // accumulated smaller vector elements must be a multiple of the store size. + if (0 != (NumElems * FromSz) % ToSz) return SDValue(); unsigned SizeRatio = FromSz / ToSz; |