vm_call_cfunc    1690 vm_insnhelper.c vm_call_cfunc(rb_thread_t *th, rb_control_frame_t *reg_cfp, struct rb_calling_info *calling, const struct rb_call_info *ci)
vm_call_cfunc    1733 vm_insnhelper.c vm_call_cfunc(rb_thread_t *th, rb_control_frame_t *reg_cfp, struct rb_calling_info *calling, const struct rb_call_info *ci, struct rb_call_cache *cc)