[AMDGPU] Assembler: SDWA/DPP should not accept scalar registers and immediate operands

Reviewers: artem.tamazov, nhaustov, vpykhtin, tstellarAMD

Subscribers: arsenm, kzhuravl, wdng, nhaehnle, yaxunl, tony-tye

Differential Revision: https://reviews.llvm.org/D28157

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291668 91177308-0d34-0410-b5e6-96231b3b80d8
7 files changed