[PATCH] D112556: [MachineVerifier] Live interval for a subreg must have subranges

[Jay Foad via Phabricator via llvm-commits]

foad added reviewers: MatzeB, bjope, kparzysz, arsenm, qcolombet.
foad added a comment.
Herald added a subscriber: wdng.

This came up when I was debugging -early-live-intervals failures. I ran into cases where TwoAddressInstruction violates this rule (which was not detected by MachineVerifier), which then causes RegisterCoalescer to either fail assertions, or produce even worse code which does fail machine verification.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D112556/new/

https://reviews.llvm.org/D112556