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-rw-r--r--llvm/lib/Target/AArch64/AArch64ISelLowering.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
index 6a7fdd4f662..d8c12eb9a05 100644
--- a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
+++ b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
@@ -6312,6 +6312,8 @@ static bool isREVMask(ArrayRef<int> M, EVT VT, unsigned BlockSize) {
static bool isZIPMask(ArrayRef<int> M, EVT VT, unsigned &WhichResult) {
unsigned NumElts = VT.getVectorNumElements();
+ if (NumElts % 2 != 0)
+ return false;
WhichResult = (M[0] == 0 ? 0 : 1);
unsigned Idx = WhichResult * NumElts / 2;
for (unsigned i = 0; i != NumElts; i += 2) {
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