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Merge 19cdbc5a0c
into 50b63c6481
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commit
3db3f4d0da
1 changed files with 4 additions and 1 deletions
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@ -737,6 +737,7 @@ struct OptDffWorker
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bool run_constbits() {
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ModWalker modwalker(module->design, module);
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QuickConeSat qcsat(modwalker);
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std::vector<RTLIL::Cell*> cells_to_remove;
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// Run as a separate sub-pass, so that we don't mutate (non-FF) cells under ModWalker.
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bool did_something = false;
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@ -830,7 +831,7 @@ struct OptDffWorker
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if (!removed_sigbits.count(i))
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keep_bits.push_back(i);
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if (keep_bits.empty()) {
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module->remove(cell);
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cells_to_remove.emplace_back(cell);
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did_something = true;
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continue;
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}
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@ -840,6 +841,8 @@ struct OptDffWorker
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did_something = true;
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}
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}
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for (auto* cell : cells_to_remove)
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module->remove(cell);
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return did_something;
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}
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};
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