[PATCH] D39421: [InstCombine] Extracting common and-mask for shift operands of Or instruction

[Omer Paparo Bivas via Phabricator via llvm-commits]

opaparo updated this revision to Diff 122612.
opaparo edited the summary of this revision.
opaparo added a comment.

Adding a pattern match for a shift of and ((V&C1)<<C2).
Although and of shift is the canonical form, this new form is also required in some cases. The new test multiuse3 demonstrate such a case.


https://reviews.llvm.org/D39421

Files:
  lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
  test/Transforms/InstCombine/or-or-shift.ll

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