AMDGPU: Add disasm tests for deep learning instructions + fix v_fmac_f32 disasm

Differential Revision: https://reviews.llvm.org/D46853


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@332377 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed