[PATCH] D81236: Correctly report modified status for LoopExtractor

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

Makes sense to me, but I don't understand what the implications might be. For example, this pass will now unconditionally run a LoopSimplify pass. Previously could it have relied on an earlier LoopSimplify run, if all the intervening passes "preserved" LoopSimplify?

To put it another way: does this patch slow down the compiler? And/or does it add more passes to the list reported by -debug-pass=Structure, for a typical compile?


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  https://reviews.llvm.org/D81236/new/

https://reviews.llvm.org/D81236