[PATCH] D60625: [X86][SSE] Lower ICMP EQ(AND(X,C),C) -> SRA(SHL(X,LOG2(C)),BW-1) iff C is power-of-2.

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 195541.
RKSimon added a comment.

Use isConstOrConstSplat


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D60625/new/

https://reviews.llvm.org/D60625

Files:
  lib/Target/X86/X86ISelLowering.cpp
  test/CodeGen/X86/movmsk-cmp.ll

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