[PATCH] D129844: [InstCombine] Restrict "(X & 0xFF00) + xx00 --> (X + xx00) & 0xFF00"

[Chris Lattner via Phabricator via llvm-commits]

lattner added a comment.

I haven't worked at this level before, but what I used to do is to build the entire test-suite to tree full of .s files with both patches, then diff them and sniff test which looks better.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D129844/new/

https://reviews.llvm.org/D129844