[PATCH] D92887: [LoopUnroll] Introduce llvm.noalias.decl and use if for duplicating noalias metadata as needed

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

I'd suggest to split this up into (at least) three parts:

- LangRef patch (not present yet here) and the addition of the intrinsic.
- Teaching everything relevant to look past the intrinsic and emitting it in inliner.
- Making use of it in loop unrolling.

This will make it easier to identify regressions caused by the extra intrinsic blocking some transform, because of missing special handling or similar.


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https://reviews.llvm.org/D92887