[PATCH] D149027: [X86] Add peephole to convert `(Cmp Op32/Op64, Imm8)` -> `(Cmp Op16/Op8, Imm8)`

[Noah Goldstein via Phabricator via llvm-commits]

goldstein.w.n updated this revision to Diff 516208.
goldstein.w.n added a comment.

Fix some nits + also check for OF flag usage


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D149027/new/

https://reviews.llvm.org/D149027

Files:
  llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
  llvm/test/CodeGen/X86/combine-movmsk.ll

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