commit b981dc4a2139ee0adf5748d65a25252ba9faef82
author Andrea Di Biagio <Andrea_DiBiagio@sn.scee.net> Sat Jan 24 11:54:29 2015 +0000
committer Andrea Di Biagio <Andrea_DiBiagio@sn.scee.net> Sat Jan 24 11:54:29 2015 +0000
tree 1774e9edf6aee0d852cbfefa8922c7fd55a32603
parent 047f8903b4314a50220d20650bfbf4199e148682

[DAG] Fix wrong canonicalization performed on shuffle nodes.

This fixes a regression introduced by r226816.
When replacing a splat shuffle node with a constant build_vector,
make sure that the new build_vector has a valid number of elements.

Thanks to Patrik Hagglund for reporting this problem and providing a
small reproducible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227002 91177308-0d34-0410-b5e6-96231b3b80d8