[PATCH] D66318: [SDAG] Update generic code to conservatively check for isAtomic in addition to isVolatile

[Philip Reames via Phabricator via llvm-commits]

reames planned changes to this revision.
reames added a comment.

Waiting behind D66322 <https://reviews.llvm.org/D66322> since that's where discussion has happened.  Once that's in, will rebase with the same changes here.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D66318/new/

https://reviews.llvm.org/D66318