// VISITs
virtual void visit(AstNetlist* nodep, AstNUser*) {
AstNode::user1ClearTree();
readModNames();
nodep->iterateChildren(*this);
// Find levels in graph
m_graph.removeRedundantEdges(&V3GraphEdge::followAlwaysTrue);
m_graph.dumpDotFilePrefixed("linkcells");
m_graph.rank();
for (V3GraphVertex* itp = m_graph.verticesBeginp(); itp; itp=itp->verticesNextp()) {
if (LinkCellsVertex* vvertexp = dynamic_cast<LinkCellsVertex*>(itp)) {
// +1 so we leave level 1 for the new wrapper we'll make in a moment
AstNodeModule* modp = vvertexp->modp();
modp->level(vvertexp->rank()+1);
if (vvertexp == m_topVertexp && modp->level() != 2) {
AstNodeModule* abovep = NULL;
if (V3GraphEdge* edgep = vvertexp->inBeginp()) {
if (LinkCellsVertex* eFromVertexp = dynamic_cast<LinkCellsVertex*>(edgep->fromp())) {
abovep = eFromVertexp->modp();
}
}
v3error("Specified --top-module '"<<v3Global.opt.topModule()
<<"' isn't at the top level, it's under another cell '"
<<(abovep ? abovep->prettyName() : "UNKNOWN")<<"'");
}
}
}
if (v3Global.opt.topModule()!=""
&& !m_topVertexp) {
v3error("Specified --top-module '"<<v3Global.opt.topModule()<<"' was not found in design.");
}
}
void V3LinkLevel::modSortByLevel() {
// Sort modules by levels, root down to lowest children
// Calculate levels again in case we added modules
UINFO(2,"modSortByLevel()\n");
// level() was computed for us in V3LinkCells
typedef vector<AstNodeModule*> ModVec;
ModVec vec;
AstNodeModule* topp = NULL;
for (AstNodeModule* nodep = v3Global.rootp()->modulesp(); nodep; nodep=nodep->nextp()->castNodeModule()) {
if (nodep->level()<=2) {
if (topp) {
nodep->v3warn(E_MULTITOP, "Unsupported: Multiple top level modules: "
<<nodep->prettyName()<<" and "<<topp->prettyName());
nodep->v3warn(E_MULTITOP, "Fix, or use --top-module option to select which you want.");
}
topp = nodep;
}
vec.push_back(nodep);
}
stable_sort(vec.begin(), vec.end(), CmpLevel()); // Sort the vector
UINFO(9,"modSortByLevel() sorted\n"); // Comment required for gcc4.6.3 / bug666
for (ModVec::iterator it = vec.begin(); it != vec.end(); ++it) {
AstNodeModule* nodep = *it;
nodep->clearIter(); // Because we didn't iterate to find the node pointers, may have a stale m_iterp() needing cleanup
nodep->unlinkFrBack();
}
if (v3Global.rootp()->modulesp()) v3Global.rootp()->v3fatalSrc("Unlink didn't work");
for (ModVec::iterator it = vec.begin(); it != vec.end(); ++it) {
AstNodeModule* nodep = *it;
v3Global.rootp()->addModulep(nodep);
}
UINFO(9,"modSortByLevel() done\n"); // Comment required for gcc4.6.3 / bug666
V3Global::dumpCheckGlobalTree("cells.tree", false, v3Global.opt.dumpTreeLevel(__FILE__) >= 3);
}
