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

[Jeremy Morse via Phabricator via llvm-commits]

jmorse added a comment.

NB: I've written up a sort of broad-ish summary of what's wrong with the SelectionDAG scheduling of DBG_VALUEs in PR41583 [0], which IMO is the cause of the unfortunate variable-location droppage described above. I've got an additional patch that should go up tomorrow.

[0] https://bugs.llvm.org/show_bug.cgi?id=41583


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