[all-commits] [llvm/llvm-project] e68b12: [Inline] Don't add noalias metadata to inaccessibl...

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e68b12c99eaf9cdfdf3e3e7c4533bb03b60afd36
      https://github.com/llvm/llvm-project/commit/e68b12c99eaf9cdfdf3e3e7c4533bb03b60afd36
  Author: Nikita Popov <nikita.ppv at gmail.com>
  Date:   2021-04-17 (Sat, 17 Apr 2021)

  Changed paths:
    M llvm/lib/Transforms/Utils/InlineFunction.cpp
    M llvm/test/Transforms/Inline/noalias-calls2.ll
    M llvm/test/Transforms/Inline/noalias2.ll

  Log Message:
  -----------
  [Inline] Don't add noalias metadata to inaccessiblememonly calls

It will not do anything useful for them, as we already know that
they don't modref with any accessible memory.

In particular, this prevents noalias metadata from being placed
on noalias.scope.decl intrinsics. This reduces the amount of
metadata needed, and makes it more likely that unnecessary decls
can be eliminated.