[PATCH] D80707: [legacyPM] Do not compute preserved analysis if there's no local change

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

Is this patch complete? I would have expected this change to break our pipeline testing approach, because those tests run on trivial functions where this would likely hide some/most places where analyses are recomputed.


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  https://reviews.llvm.org/D80707/new/

https://reviews.llvm.org/D80707