{"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":"\"mbcnt.hi\""}]}
                    "mbcnt.hi" => "__builtin_amdgcn_mbcnt_hi",
                    "lerp" => "__builtin_amdgcn_lerp",
                    "mbcnt.lo" => "__builtin_amdgcn_mbcnt_lo",