vm_call_iseq_setup_tailcall 1306 vm_insnhelper.c static inline VALUE vm_call_iseq_setup_tailcall(rb_thread_t *th, rb_control_frame_t *cfp, struct rb_calling_info *calling, const struct rb_call_info *ci, struct rb_call_cache *cc, int opt_pc); vm_call_iseq_setup_tailcall 1330 vm_insnhelper.c return vm_call_iseq_setup_tailcall(th, cfp, calling, ci, cc, 0); vm_call_iseq_setup_tailcall 1394 vm_insnhelper.c return vm_call_iseq_setup_tailcall(th, cfp, calling, ci, cc, opt_pc);