[AMDGPU] Add GlobalOpt parameter to Always Inliner pass

If set to false it does not remove global aliases. With this parameter
set to false it should be safe to run the pass before link.

Differential Revision: https://reviews.llvm.org/D31489

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299108 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed