mirror of https://github.com/YosysHQ/yosys.git
Add proper error message for btor recursion_guard
Signed-off-by: Clifford Wolf <clifford@clifford.at>
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@ -129,7 +129,13 @@ struct BtorWorker
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void export_cell(Cell *cell)
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{
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log_assert(cell_recursion_guard.count(cell) == 0);
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if (cell_recursion_guard.count(cell)) {
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string cell_list;
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for (auto c : cell_recursion_guard)
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cell_list += stringf("\n %s", log_id(c));
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log_error("Found topological loop while processing cell %s. Active cells:%s\n", log_id(cell), cell_list.c_str());
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}
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cell_recursion_guard.insert(cell);
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btorf_push(log_id(cell));
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