[PATCH] D75799: [JumpThreading] Don't create PHI nodes with "is.constant" values

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

This looks somewhat dubious to me. This seems like an InstCombine-style fold that is performed in JumpThreading -- but why? Won't it just get folded either earlier or later? As the test case is over-reduced, it's hard to tell where this would make a difference in practice.


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  https://reviews.llvm.org/D75799/new/

https://reviews.llvm.org/D75799