[PATCH] D100717: [InstCombine] Transform memcpy to ptr load/stores if TBAA says so

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

I'm uncomfortable with using TBAA for this purpose. The problem is that not all languages use TBAA, simply because that does not match their aliasing model. They shouldn't be penalized because TBAA information gets reused for an unrelated purpose.

Might it make sense to simply always use a pointer type here (assuming size matches of course)?


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  https://reviews.llvm.org/D100717/new/

https://reviews.llvm.org/D100717