{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"\"fma.rn.ftz.bf16x2\""}]}
                    "fma.rn.ftz.bf16x2" => "__nvvm_fma_rn_ftz_bf16x2",
                    "fma.rn.ftz.bf16" => "__nvvm_fma_rn_ftz_bf16",
                    "fma.rn.ftz.f" => "__nvvm_fma_rn_ftz_f",