Method inst_count

extern/re2/re2/prog.h:208–208

  void set_reversed(bool reversed) { reversed_ = reversed; }
  int list_count() { return list_count_; }
  int inst_count(InstOp op) { return inst_count_[op]; }
  uint16_t* list_heads() { return list_heads_.data(); }
  int64_t dfa_mem() { return dfa_mem_; }
  void set_dfa_mem(int64_t dfa_mem) { dfa_mem_ = dfa_mem; }