[AMDGPU] DPP: add support for GFX9

Reviewers: artem.tamazov

Subscribers: arsenm, kzhuravl, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye

Differential Revision: https://reviews.llvm.org/D32588

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301551 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed