[PATCH] D117891: [DebugInfo][InstrRef] Don't check liveness of any debug instruction operand

[Jeremy Morse via Phabricator via llvm-commits]

jmorse created this revision.
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Shiny new DBG_PHI instruction usually have physical registers as operands -- however, the machine verifier checks to see whether they're live, and occasionally this fails. There's a filter for DBG_VALUE instructions to not get verified in this way: expand it to exempt all debug instructions from liveness checking, which means DBG_PHIs get treated like DBG_VALUEs.

This also future proofs against us adding new debug instructions.

Should fix https://github.com/llvm/llvm-project/issues/53336


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D117891

Files:
  llvm/lib/CodeGen/MachineVerifier.cpp
  llvm/test/DebugInfo/MIR/InstrRef/accept-nonlive-reg-phis.mir

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