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Improvements in "viz" command

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Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
This commit is contained in:
Claire Xenia Wolf 2022-12-07 16:10:58 +01:00
parent aeba966475
commit 068031d2aa
1 changed files with 51 additions and 17 deletions
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68
passes/cmds/viz.cc
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@ -670,27 +670,58 @@ struct VizWorker
fprintf(f, "digraph \"%s\" {\n", log_id(module));
fprintf(f, " rankdir = LR;\n");
dict<GraphNode*, std::vector<std::string>, hash_ptr_ops> extra_lines;
dict<GraphNode*, std::vector<std::vector<std::string>>, hash_ptr_ops> extra_lines;
dict<GraphNode*, GraphNode*, hash_ptr_ops> bypass_nodes;
for (auto g : graph.term_nodes) {
if (g->nomerge || GetSize(g->upstream()) != 1) continue;
auto bypass = [&](GraphNode *g, GraphNode *n) {
log_assert(g->terminal);
log_assert(!n->terminal);
bypass_nodes[g] = n;
auto &buffer = extra_lines[n];
buffer.emplace_back();
for (auto name : g->names())
buffer.back().push_back(log_id(name));
std::sort(buffer.back().begin(), buffer.back().end());
std::sort(buffer.begin(), buffer.end());
};
for (auto g : graph.term_nodes)
{
if (bypass_nodes.count(g)) continue;
if (GetSize(g->upstream()) != 1) continue;
if (!g->downstream().empty() && g->downstream() != g->upstream()) continue;
auto n = *(g->upstream().begin());
if (n->terminal) continue;
for (auto name : g->names())
extra_lines[n].push_back(log_id(name));
bypass_nodes[g] = n;
bypass(g, n);
}
for (int i = 0; i < GetSize(graph.nodes); i++) {
auto g = graph.nodes[i];
for (auto g : graph.term_nodes)
{
if (bypass_nodes.count(g)) continue;
if (GetSize(g->upstream()) != 1) continue;
auto n = *(g->upstream().begin());
if (n->terminal) continue;
if (GetSize(n->downstream()) != 1) continue;
if (extra_lines.count(n)) continue;
bypass(g, n);
}
for (auto g : graph.nodes) {
if (g->downstream().empty() && g->upstream().empty())
continue;
if (bypass_nodes.count(g))
continue;
if (g->terminal) {
std::string label; // = stringf("[%d]\\n", g->index);
g->names().sort();
std::string label; // = stringf("vg=%d\\n", g->index);
for (auto n : g->names())
label = label + (label.empty() ? "" : "\\n") + log_id(n);
fprintf(f, "\tn%d [shape=rectangle,label=\"%s\"];\n", g->index, label.c_str());
@ -698,10 +729,12 @@ struct VizWorker
std::string label = stringf("vg=%d | %d cells", g->index, GetSize(g->names()));
std::string shape = "oval";
if (extra_lines.count(g)) {
label += label.empty() ? "" : "\\n";
for (auto line : extra_lines.at(g))
label = label + (label.empty() ? "" : "\\n") + line;
shape = "octagon";
for (auto &block : extra_lines.at(g)) {
label += label.empty() ? "" : "\\n";
for (auto &line : block)
label = label + (label.empty() ? "" : "\\n") + line;
shape = "octagon";
}
}
fprintf(f, "\tn%d [shape=%s,label=\"%s\"];\n", g->index, shape.c_str(), label.c_str());
}
@ -709,13 +742,14 @@ struct VizWorker
pool<std::string> edges;
for (auto g : graph.nodes) {
g = bypass_nodes.at(g, g);
auto p = bypass_nodes.at(g, g);
for (auto n : g->downstream()) {
n = bypass_nodes.at(n, n);
if (g == n) continue;
edges.insert(stringf("n%d -> n%d", g->index, n->index));
auto q = bypass_nodes.at(n, n);
if (p == q) continue;
edges.insert(stringf("n%d -> n%d", p->index, q->index));
}
}
edges.sort();
for (auto e : edges)
fprintf(f, "\t%s;\n", e.c_str());