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https://github.com/YosysHQ/yosys
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commit
2f4c917dac
10 changed files with 24 additions and 15 deletions
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@ -167,7 +167,11 @@ struct OptLutWorker
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legal = false;
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break;
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}
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if (sigmap(lut_input[dlogic_conn.first]) != sigmap(lut_dlogic.second->getPort(dlogic_conn.second)))
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if (lut_dlogic.second->getPort(dlogic_conn.second).size() != 1)
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continue;
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if (sigmap(lut_input[dlogic_conn.first]) != sigmap(lut_dlogic.second->getPort(dlogic_conn.second)[0]))
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{
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log_debug(" LUT has illegal connection to %s cell %s.%s.\n", lut_dlogic.second->type.c_str(), log_id(module), log_id(lut_dlogic.second));
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log_debug(" LUT input A[%d] (wire %s) not connected to %s port %s (wire %s).\n", dlogic_conn.first, log_signal(lut_input[dlogic_conn.first]), lut_dlogic.second->type.c_str(), dlogic_conn.second.c_str(), log_signal(lut_dlogic.second->getPort(dlogic_conn.second)));
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@ -314,7 +318,7 @@ struct OptLutWorker
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auto lutA = worklist.pop();
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SigSpec lutA_input = sigmap(lutA->getPort(ID::A));
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SigSpec lutA_output = sigmap(lutA->getPort(ID::Y)[0]);
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SigBit lutA_output = sigmap(lutA->getPort(ID::Y)[0]);
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int lutA_width = lutA->getParam(ID::WIDTH).as_int();
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int lutA_arity = luts_arity[lutA];
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pool<int> &lutA_dlogic_inputs = luts_dlogic_inputs[lutA];
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