[PATCH] D118124: [regalloc] Fix assertion error when LiveInterval is empty

[Matthias Braun via Phabricator via llvm-commits]

MatzeB added a comment.

The thing that confuses me is that the very first thing in `LiveRegMatrix::checkInterference()` is this:

  if (VirtReg.empty())
    return IK_Free;

so I don't see how we would even reach the `intervalIsInOneMBB` test if the live interval is empty...


Repository:
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  https://reviews.llvm.org/D118124/new/

https://reviews.llvm.org/D118124