[PATCH] D127835: [SCEV] recognize llvm.annotation intrinsic

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

Previous attempt: https://reviews.llvm.org/D102344

The semantics of this intrinsics as specified by LangRef really leave something to be desired. In particular it's not clear to me whether it is okay to replace the llvm.annotation result with its argument during middle-end optimization, because that's what this SCEV change will ultimately lead to (at least in some cases).


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D127835/new/

https://reviews.llvm.org/D127835