[PATCH] D43909: OpenBSD UBsan support / common

[Kamil Rytarowski via Phabricator via llvm-commits]

krytarowski added a comment.

Please try to partition this into 200-300 line patches.

This patch is 2271 lines long.

Please try to remove all unrelated style changes.

`GetTid()` fix for FreeBSD (and abandoning uptr concept) deserves a separate commit.


https://reviews.llvm.org/D43909