1204     DCHECK(!control_.empty());                                 \
1205     if (VALIDATE(this->ok()) && control_.back().reachable()) { \
1211     DCHECK(!control_.empty());                                  \
1213         (control_.size() == 1 || control_at(1)->reachable())) { \
1239         control_(zone),  in WasmFullDecoder()
1249     DCHECK(control_.empty());  in Decode()
1270     if (!control_.empty()) {  in Decode()
1273       if (control_.size() > 1) {  in Decode()
1274         this->error(control_.back().pc, "unterminated control structure");  in Decode()
1326     return static_cast<uint32_t>(control_.size());  in control_depth()
1330     DCHECK_GT(control_.size(), depth);  in control_at()
1331     return &control_.back() - depth;  in control_at()
1361   ZoneVector<Control> control_;           // stack of blocks, loops, and ifs.  variable
1473             CALL_INTERFACE_IF_REACHABLE(Throw, imm, &control_.back(),  in DecodeFunctionBody()
1498             if (!VALIDATE(!control_.empty())) {  in DecodeFunctionBody()
1503             Control* c = &control_.back();  in DecodeFunctionBody()
1537             SetBlockType(&control_.back(), imm);  in DecodeFunctionBody()
1557             if (!VALIDATE(!control_.empty())) {  in DecodeFunctionBody()
1561             Control* c = &control_.back();  in DecodeFunctionBody()
1578             if (!VALIDATE(!control_.empty())) {  in DecodeFunctionBody()
1582             Control* c = &control_.back();  in DecodeFunctionBody()
1600             if (control_.size() == 1) {  in DecodeFunctionBody()
1626             if (!this->Validate(this->pc_, imm, control_.size())) break;  in DecodeFunctionBody()
1629             if (control_.back().reachable()) {  in DecodeFunctionBody()
1641             if (!this->Validate(this->pc_, imm, control_.size())) break;  in DecodeFunctionBody()
1644             if (control_.back().reachable()) {  in DecodeFunctionBody()
1656             if (!this->Validate(this->pc_, imm, control_.size())) break;  in DecodeFunctionBody()
1658             std::vector<bool> br_targets(control_.size());  in DecodeFunctionBody()
1663               if (!VALIDATE(target < control_.size())) {  in DecodeFunctionBody()
1687             if (control_.back().reachable()) {  in DecodeFunctionBody()
1701             DoReturn(&control_.back(), false);  in DecodeFunctionBody()
1974         for (Control& c : control_) {  in DecodeFunctionBody()
2041     DCHECK(!control_.empty());  in EndControl()
2042     auto* current = &control_.back();  in EndControl()
2088         control_.empty() ? kReachable : control_.back().innerReachability();  in PushControl()
2089     control_.emplace_back(std::move(new_control));  in PushControl()
2090     Control* c = &control_.back();  in PushControl()
2111     DCHECK_EQ(c, &control_.back());  in PopControl()
2114     control_.pop_back();  in PopControl()
2117     if (!control_.empty() && !reached && control_.back().reachable()) {  in PopControl()
2118       control_.back().reachability = kSpecOnlyReachable;  in PopControl()
2311     DCHECK_EQ(c, &control_.back());  in PushMergeValues()
2347     DCHECK(!control_.empty());  in Pop()
2348     uint32_t limit = control_.back().stack_depth;  in Pop()
2351       if (!VALIDATE(control_.back().unreachable())) {  in Pop()
2365     DCHECK_EQ(c, &control_.back());  in FallThruTo()
2398     DCHECK_EQ(c, &control_.back());  in TypeCheckFallThru()
2418     DCHECK_GE(stack_.size(), control_.back().stack_depth);  in TypeCheckBreak()
2420         static_cast<uint32_t>(stack_.size()) - control_.back().stack_depth;  in TypeCheckBreak()
2435     if (!VALIDATE(control_.back().unreachable())) {  in InsertUnreachablesIfNecessary()