[PATCH] D70121: [WIP][DebugInfo][LDV] Attempt to teach LDV how to handle fragments

[Orlando Cazalet-Hyams via Phabricator via llvm-commits]

Orlando added a comment.

More Info about this patch: As far as LDV is concerned undefs and 'blockers' are semantically very similar. However, blockers are not emitted (as DBG_VALUES) because it is unnecessary: They are only added to UserValues with overlapping fragments for any given def, and a def implicitly terminates preceding defs with overlapping fragments [0].

[0] https://llvm.org/docs/SourceLevelDebugging.html#object-lifetime-in-optimized-code


Repository:
  rL LLVM

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https://reviews.llvm.org/D70121