AMDGPU/SI: Add support for 8-byte relocations

Reviewers: arsenm, kzhuravl

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

Differential Revision: https://reviews.llvm.org/D25375

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283593 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed