[PATCH] D31830: Emit invariant.group.barrier when using union field

[Piotr Padlewski via Phabricator via cfe-commits]

Prazek marked 6 inline comments as done.
Prazek added a comment.

For now I will check if it has any vptrs. It will be probably soon stored in the CXXRecordDecl because it will be used much more frequently when generating barriers for pointer casts.


https://reviews.llvm.org/D31830