{"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"\"implicit.buffer.ptr\""}]}
                    "implicit.buffer.ptr" => "__builtin_amdgcn_implicit_buffer_ptr",
                    "iglp.opt" => "__builtin_amdgcn_iglp_opt",
                    "implicitarg.ptr" => "__builtin_amdgcn_implicitarg_ptr",