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Commit 77dd86ee authored by Craig Topper's avatar Craig Topper
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[X86] Add a hack to combineVSelectWithAllOnesOrZeros to turn selects with two... 

[X86] Add a hack to combineVSelectWithAllOnesOrZeros to turn selects with two zero/undef vector inputs into an all zeroes vector.

If the two zero vectors have undefs in different places they
won't get combined by simplifySelect.

This fixes a regression from an earlier commit.

llvm-svn: 371351
parent 9c119012
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