[PATCH] D116935: [IRBuilder] Introduce folder using inst-simplify, use for Or fold.

[Craig Topper via Phabricator via cfe-commits]

craig.topper added a comment.

If I remember correctly, the Or and And folds for 0 and all 1s are there to optimize bitfield codegen for the frontend. Are we losing that optimization if this patch goes in before switching clang to InstSimplifyFolder?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D116935/new/

https://reviews.llvm.org/D116935