[PATCH] D63318: [DAGCombine] Teach DAGCombine to fold the aext + select pattern

[Qing Shan Zhang via Phabricator via llvm-commits]

steven.zhang updated this revision to Diff 205512.
steven.zhang added a comment.

Add the isZextFree check.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D63318/new/

https://reviews.llvm.org/D63318

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/test/CodeGen/PowerPC/bool-math.ll
  llvm/test/CodeGen/PowerPC/select_const.ll
  llvm/test/CodeGen/X86/avx512-insert-extract.ll
  llvm/test/CodeGen/X86/cmov-promotion.ll
  llvm/test/CodeGen/X86/select.ll

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