[PATCH] D98908: Update basic deref API to account for possiblity of free [NFC]

[Nuno Lopes via Phabricator via llvm-commits]

nlopes added a comment.

Sounds good to me, as long as you commit to removing that cmd switch within a reasonable time frame. Otherwise we accumulate technical debt.

This patch just shows how terrible this LLVM thing of traversing things backwards can be. Just because a pointer can be freed, it doesn't mean it was. This patch is quite pessimistic; essentially it assumes all pointers are dead. What's the plan to avoid regressions?


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https://reviews.llvm.org/D98908