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...ifferent widths and expandVSELECT is not equipped to deal with that case. Can you write down the input SDNode ? What types are inputs ? Thanks, Nadav -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130311/5f8cd7ad/attachment.html>

On Mar 8, 2013, at 2:29 PM, Nadav Rotem <nrotem at apple.com<mailto:nrotem at apple.com>> wrote: Hi Richard, visitSIGN_EXTEND() in DAGCombiner.cpp generates an ISD::SELECT even if VT is a vector, which causes ExpandSELECT() to assert during legalization. I think what's required is to have visitSIGN_EXTEND generate a VSELECT if VT is a vector… ISD::SELECT should be used for