AMDGPU/SI: Add a MachineMemOperand when lowering llvm.amdgcn.buffer.load.*

Reviewers: arsenm, nhaehnle, mareko

Subscribers: kzhuravl, wdng, yaxunl, llvm-commits, tony-tye

Differential Revision: https://reviews.llvm.org/D27834

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290184 91177308-0d34-0410-b5e6-96231b3b80d8
8 files changed