message: Trivial refactoring
diff: @@ -608,8 +608,7 @@ class Analyzer final : public BaseIRAnalyzer<CseEnvironment> {
  CseEnvironment* current_state) const {
  auto ref_env = current_state->get_ref_env();
  std::unordered_map<uint32_t, value_id_t> new_pre_state_src_values;
  - for (size_t i = 0; i < insn->srcs_size(); i++) {
  - auto reg = insn->src(i);
  + for (auto reg : insn->srcs()) {
  auto c = ref_env.get(reg).get_constant();
  if (!c) {
  auto it = new_pre_state_src_values.find(reg);
  @@ -636,8 +635,7 @@ class Analyzer final : public BaseIRAnalyzer<CseEnvironment> {
  always_assert(opcode != IOPCODE_PRE_STATE_SRC);
  value.opcode = opcode;
  auto ref_env = current_state->get_ref_env();
  - for (size_t i = 0; i < insn->srcs_size(); i++) {
  - auto reg = insn->src(i);
  + for (auto reg : insn->srcs()) {
  auto c = ref_env.get(reg).get_constant();
  always_assert(c);
  value_id_t value_id = *c;
  