ac: add ac_build_buffer_load_common() helper

For both versions of llvm.amdgcn.buffer.load.{format}.*.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
1 file changed