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...can't XOR the mask with the operands because they are not the same width. You can custom-lower VSELECTS to work around this problem. Thanks, Nadav -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130311/daaa68ed/attachment-0001.html>

On Mar 11, 2013, at 9:41 AM, Nadav Rotem <nrotem at apple.com<mailto:nrotem at apple.com>> wrote: Hi Richard, I did… It originates from an icmp ne <2x i8>, zero initializer followed by a sext of the result 2x i1 to 2x i8. When we visit the SIGN_EXTEND, we generate the ISD::SELECT even though the selector and both operands are vectors. It sounds like a bug in the dag combine