{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"\"fma.vfnmadd.pd.256\""}]}
                    "fma.vfnmadd.pd.256" => "__builtin_ia32_vfnmaddpd256",
                    "fma.vfnmadd.pd" => "__builtin_ia32_vfnmaddpd",
                    "fma.vfnmadd.ps" => "__builtin_ia32_vfnmaddps",