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Commit a183ddb0 authored by Craig Topper's avatar Craig Topper
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Teach DAG combine to handle vector logical operations with vectors of all 1s... 

Teach DAG combine to handle vector logical operations with vectors of all 1s or all 0s. These cases can show up when vectors are split for legalizing. Fix some tests that were dependent on these cases not being combined.

llvm-svn: 169684
parent 91e47532
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