[PATCH] D28914: [AliasAnalysis] Fences do not modify constant memory location

[Daniel Berlin via Phabricator via llvm-commits]

dberlin added a comment.

Even though most AA related calls will crash trying to get a memorylocation from the fence, this looks right..

Please add the same change to NewGVN/fence.ll


https://reviews.llvm.org/D28914