radeonsi: ARB_gpu_shader_fp64 + ARB_vertex_attrib_64bit support.

This adds the translation from TGSI to AMDGPU llvm backend, for the
64-bit opcodes. The backend pretty much handles everything for us
fine. There is one patch required for SI DFRAC support, that I know
off.

[airlied: fixed missing comma, updated relnotes]

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
6 files changed