[PATCH] D48905: [ADT] Guard our use of function pointers in a `PointerUnion` by a dynamic check that the pointer is actually sufficiently aligned.

[Justin Bogner via Phabricator via llvm-commits]

bogner accepted this revision.
bogner added a comment.
This revision is now accepted and ready to land.

This fixes the segfault / asan error I was seeing in ADTTests with -Os on macOS, and the trade off with the runtime check seems pretty reasonable to me.


Repository:
  rL LLVM

https://reviews.llvm.org/D48905