================
@@ -150,29 +152,38 @@ bool
UnwindAssemblyInstEmulation::GetNonCallSiteUnwindPlanFromAssembly(
EmulateInstruction::InstructionCondition last_condition =
EmulateInstruction::UnconditionalCondition;
- for (const InstructionSP &inst : inst_list.Instructions()) {
- if (!inst)
- continue;
- DumpInstToLog(log, *inst, inst_list);
+ std::deque<std::size_t> to_visit = {0};
+ llvm::SmallSet<std::size_t, 0> enqueued = {0};
+
+ // Instructions reachable through jumps are inserted on the front.
+ // The next instruction in inserted on the back.
+ // Pop from the back to ensure non-branching instructions are visited
+ // sequentially.
+ while (!to_visit.empty()) {
+ std::size_t current_index = to_visit.back();
----------------
DavidSpickett wrote:
Use pop_back here. So that there's one less line where the deque is in the
in-between state.
https://github.com/llvm/llvm-project/pull/169630
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