[PATCH] D44177: [JumpThreading] use UnreachableBlocks to avoid unreachable regions

[Brian Rzycki via Phabricator via llvm-commits]

brzycki updated this revision to Diff 137665.
brzycki added a comment.

Addressed @kuhar 's comments.

@kuhar , I was incorrect about the `for (auto &BB : F)` causing crashes. It was actually the `ifdef NDEBUG` when I moved it into `JumpThreading.cpp`. I opted to not add an `NDEBUG` stanza and just use `SmallPtrSet`. There are several other instances of local pointer sets within JumpThreading that do the same.


https://reviews.llvm.org/D44177

Files:
  llvm/lib/Transforms/Scalar/JumpThreading.cpp
  llvm/test/Transforms/JumpThreading/pr15851_hang.ll
  llvm/test/Transforms/JumpThreading/select.ll

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