[PATCH] D47116: [DAGCombiner] Use computeKnownBits to match rotate patterns that have had their amount masking modified by simplifyDemandedBits.

Craig Topper via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon May 21 13:17:04 PDT 2018


craig.topper updated this revision to Diff 147850.
craig.topper added a comment.

Add vector tests too.


https://reviews.llvm.org/D47116

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/X86/combine-rotates.ll
  test/CodeGen/X86/rotate4.ll

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