diff options
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 17f925bd3e8..4678340b6fb 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -9884,11 +9884,11 @@ static bool canWidenShuffleElements(ArrayRef<int> Mask, // Check for an undef mask and a mask value properly aligned to fit with // a pair of values. If we find such a case, use the non-undef mask's value. - if (Mask[i] == -1 && Mask[i + 1] % 2 == 1) { + if (Mask[i] == -1 && Mask[i + 1] >= 0 && Mask[i + 1] % 2 == 1) { WidenedMask.push_back(Mask[i + 1] / 2); continue; } - if (Mask[i + 1] == -1 && Mask[i] % 2 == 0) { + if (Mask[i + 1] == -1 && Mask[i] >= 0 && Mask[i] % 2 == 0) { WidenedMask.push_back(Mask[i] / 2); continue; } |
