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Merge pull request #184 from YosysHQ/fix_183

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common/chain_utils: Don't allow overlapping chains
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David Shah 2018-12-19 10:54:44 +00:00 committed by GitHub
commit c46a22cb7f
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1 changed files with 2 additions and 1 deletions
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3
common/chain_utils.h
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@ -51,7 +51,8 @@ std::vector<CellChain> find_chains(const Context *ctx, F1 cell_type_predicate, F
CellChain chain; CellChain chain;
CellInfo *end = start; CellInfo *end = start;
while (end != nullptr) { while (end != nullptr) {
chain.cells.push_back(end); if (chained.insert(end->name).second)
chain.cells.push_back(end);
end = get_next(ctx, end); end = get_next(ctx, end);
} }
if (chain.cells.size() >= min_length) { if (chain.cells.size() >= min_length) {