Add MemoryAccess creation and PHI creation APIs to MemorySSA

Reviewers: george.burgess.iv, gberry, hfinkel

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D21463

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273295 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed