[PATCH] D149229: [InstSimplify] with logical ops: (X & Y) == -1 ? X : -1 --> -1

[Allen zhong via Phabricator via llvm-commits]

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Use simplifySelectWithICmpEq to handle the implied equalities from the icmp-and,
then both of ICMP_NE and ICMP_EQ will be addressed including vector type.

  (X & Y) == -1 ?  X : -1 --> -1 (commuted 2 ways)
  (X & Y) != -1 ? -1 :  X --> -1 (commuted 2 ways)

This is a supplement to the icmp-or scenario on D148986 <https://reviews.llvm.org/D148986>.


https://reviews.llvm.org/D149229

Files:
  llvm/lib/Analysis/InstructionSimplify.cpp
  llvm/test/Transforms/InstSimplify/select_or_and.ll

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