[PATCH] D110939: [PHIElimination] Update LiveVariables after handling an unspillable terminator

[Dave Green via Phabricator via llvm-commits]

dmgreen added a comment.

If it helps, I would expect the unspillable terminators to look like:

  bb1:
    ..
    %r = UnspillableTerminator ..
  bb2:
    %p = phi %r, ...
    ... uses of %p

In our usecase in the Arm backend, bb2 will be a loop header, usually with a single block (but not necessarily, especially in the future).


Repository:
  rG LLVM Github Monorepo

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https://reviews.llvm.org/D110939