{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"\"subgroup.size\""}]}
                    "subgroup.size" => "__builtin_spirv_subgroup_size",
                    "subgroup.max.size" => "__builtin_spirv_subgroup_max_size",
                    _ => unimplemented!("***** unsupported LLVM intrinsic {full_name}"),