[PATCH] D149651: [UnreachableBlockElim] Don't remove LCSSA phi nodes

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

I forgot a FIXME: this patches currently causes `CodeGen/AMDGPU/control-flow-optnone.ll` to fail with `*** Bad machine code: Kill missing from LiveVariables ***`.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D149651/new/

https://reviews.llvm.org/D149651