[PATCH] D49229: [InstCombine] Fold redundant masking operations of shifted value

[Diogo N. Sampaio via Phabricator via llvm-commits]

dnsampaio updated this revision to Diff 155329.
dnsampaio marked 3 inline comments as done.
dnsampaio added a comment.

Constrain to allow the transformation to happen only when the masked value has only 2 users (an AND and a SHIFT).
Removed value tracking operations.


https://reviews.llvm.org/D49229

Files:
  lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
  lib/Transforms/InstCombine/InstCombineInternal.h
  test/Transforms/AggressiveInstCombine/foldRedundantShiftedMasks.ll

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