[PATCH] D56151: [DebugInfo] PR40010: Avoid register coalesing altering DBG_VALUE valuations

[Jeremy Morse via Phabricator via llvm-commits]

jmorse planned changes to this revision.
jmorse added a comment.

On the topic of coalescing physical registers, it appears the liveness test is well defined in joinReservedPhysReg. However while absorbing all of this, I've realised that dead DBG_VALUEs of both src and dst registers can be resurrected when their intervals are joined. I'll attempt to generalise further...


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