mirror of
https://github.com/YosysHQ/yosys
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134 lines
3.4 KiB
C++
134 lines
3.4 KiB
C++
#include "subcircuit.h"
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#include <stdio.h>
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#define VERBOSE
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int main()
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{
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SubCircuit::Graph needle, haystack;
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// create needle graph
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needle.createNode("mul_1", "product");
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needle.createPort("mul_1", "A", 4);
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needle.createPort("mul_1", "B", 4);
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needle.createPort("mul_1", "Y", 4);
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needle.markExtern("mul_1", "A");
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needle.markExtern("mul_1", "B");
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needle.createNode("mul_2", "product");
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needle.createPort("mul_2", "A", 4);
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needle.createPort("mul_2", "B", 4);
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needle.createPort("mul_2", "Y", 4);
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needle.markExtern("mul_2", "A");
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needle.markExtern("mul_2", "B");
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needle.createNode("add_1", "sum");
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needle.createPort("add_1", "A", 4);
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needle.createPort("add_1", "B", 4);
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needle.createPort("add_1", "Y", 4);
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needle.markExtern("add_1", "Y");
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needle.createConnection("mul_1", "Y", "add_1", "A");
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needle.createConnection("mul_2", "Y", "add_1", "B");
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#ifdef VERBOSE
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printf("\n");
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needle.print();
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#endif
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// create haystack graph
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#if 0
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for (int i = 0; i < 4; i++) {
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char id[100];
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snprintf(id, 100, "mul_%d", i);
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haystack.createNode(id, "mul");
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haystack.createPort(id, "A", 4);
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haystack.createPort(id, "B", 4);
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haystack.createPort(id, "Y", 4);
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haystack.markExtern(id, "A");
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haystack.markExtern(id, "B");
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}
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for (int i = 0; i < 3; i++) {
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char id[100];
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snprintf(id, 100, "add_%d", i);
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haystack.createNode(id, "add");
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haystack.createPort(id, "A", 4);
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haystack.createPort(id, "B", 4);
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haystack.createPort(id, "Y", 4);
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}
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haystack.createConnection("mul_0", "Y", "add_0", "A");
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haystack.createConnection("mul_1", "Y", "add_0", "B");
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haystack.createConnection("mul_2", "Y", "add_1", "A");
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haystack.createConnection("mul_3", "Y", "add_1", "B");
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haystack.createConnection("add_0", "Y", "add_2", "A");
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haystack.createConnection("add_1", "Y", "add_2", "B");
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haystack.markExtern("add_2", "Y");
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#else
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std::vector<std::string> cellIds;
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srand48(12345);
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for (int i = 0; i < 45; i++) {
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char id[100];
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snprintf(id, 100, "cell_%02d", i);
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haystack.createNode(id, i < 30 ? "mul" : "add");
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haystack.createPort(id, "A", 4);
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haystack.createPort(id, "B", 4);
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haystack.createPort(id, "Y", 4);
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cellIds.push_back(id);
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}
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for (int i = 0; i < int(cellIds.size()); i++) {
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if (lrand48() % (i < 20 ? 3 : 2) != 0)
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continue;
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const std::string &id = cellIds[i];
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const std::string &id_left = cellIds[lrand48() % cellIds.size()];
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const std::string &id_right = cellIds[lrand48() % cellIds.size()];
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haystack.createConnection(id_left, "Y", id, "A");
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haystack.createConnection(id_right, "Y", id, "B");
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}
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#endif
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#ifdef VERBOSE
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printf("\n");
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haystack.print();
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#endif
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// search needle in haystack
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SubCircuit::Solver solver;
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std::vector<SubCircuit::Solver::Result> results;
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#ifdef VERBOSE
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solver.setVerbose();
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#endif
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solver.addCompatibleTypes("product", "mul");
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solver.addCompatibleTypes("sum", "add");
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solver.addSwappablePorts("product", "A", "B");
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solver.addSwappablePorts("sum", "A", "B");
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solver.addGraph("needle", needle);
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solver.addGraph("haystack", haystack);
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solver.solve(results, "needle", "haystack");
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for (int i = 0; i < int(results.size()); i++) {
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printf("\nMatch #%d: (%s in %s)\n", i, results[i].needleGraphId.c_str(), results[i].haystackGraphId.c_str());
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for (const auto &it : results[i].mappings) {
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printf(" %s -> %s", it.first.c_str(), it.second.haystackNodeId.c_str());
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for (const auto &it2 : it.second.portMapping)
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printf(" %s:%s", it2.first.c_str(), it2.second.c_str());
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printf("\n");
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}
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}
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printf("\n");
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return 0;
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}
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