[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 abandoned this revision.
goldstein.w.n added a comment.

Craig pointed out, this only benefits for `%eax` -> `%al`. Given how niche it is, going to abandon.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D149027/new/

https://reviews.llvm.org/D149027