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Commit 5d1aeba2 authored by David Majnemer's avatar David Majnemer
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InstCombine: Fold ((A | B) & C1) ^ (B & C2) -> (A & C1) ^ B if C1^C2=-1 

Adapted from a patch by Richard Smith, test-case written by me.

llvm-svn: 216157
parent 3ced27c8
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