[PATCH] D133203: [TypePromotionPass] Don't treat phi's as ToPromote

[Sam Parker via Phabricator via llvm-commits]

samparker added a comment.

It's not clear to me, from the tests, why a phi shouldn't be considered profitable... having `cmp w*, w*, uxt*` in those atomic loops look slower to me. Maybe we should be checking whether the phi is in a loop or not?


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  https://reviews.llvm.org/D133203/new/

https://reviews.llvm.org/D133203