[PATCH] D119571: [funcattrs] use DominatorTree to improve noreturn

[Nick Desaulniers via Phabricator via llvm-commits]

nickdesaulniers added a comment.

One thing I was curious of; does this recalculate a new `DominatorTree` for each function?

I noticed some other usages of `DominatorTree` first would query `Pass::getAnalysisIfAvailable<DominatorTreeWrapperPass>())`. Should I be doing that, too? (will require plumbing the `Pass` object through a few static functions, but isn't too bad).


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https://reviews.llvm.org/D119571