void GateVisitor::warnSignals() {
AstNode::user2ClearTree();
for (V3GraphVertex* itp = m_graph.verticesBeginp(); itp; itp=itp->verticesNextp()) {
if (GateVarVertex* vvertexp = dynamic_cast<GateVarVertex*>(itp)) {
AstVarScope* vscp = vvertexp->varScp();
AstNode* sp = vvertexp->rstSyncNodep();
AstNode* ap = vvertexp->rstAsyncNodep();
if (ap && sp && !vscp->varp()->user2()) {
// This is somewhat wrong, as marking one flop as ok for sync
// may mean a different flop now fails. However it's a pain to
// then report a warning in a new place - we should report them all at once.
// Instead we'll disable if any disabled
if (!vscp->fileline()->warnIsOff(V3ErrorCode::SYNCASYNCNET)
&& !ap->fileline()->warnIsOff(V3ErrorCode::SYNCASYNCNET)
&& !sp->fileline()->warnIsOff(V3ErrorCode::SYNCASYNCNET)
) {
vscp->varp()->user2(true); // Warn only once per signal
vscp->v3warn(SYNCASYNCNET,"Signal flopped as both synchronous and async: "<<vscp->prettyName()<<endl
<<ap->warnMore()<<"... Location of async usage"<<endl
<<sp->warnMore()<<"... Location of sync usage"<<endl);
}
}
}
}
}
// METHODS
void readModNames() {
// Look at all modules, and store pointers to all module names
for (AstNodeModule* nextp,* nodep = v3Global.rootp()->modulesp(); nodep; nodep=nextp) {
nextp = nodep->nextp()->castNodeModule();
AstNode* foundp = m_mods.rootp()->findIdFallback(nodep->name())->nodep();
if (foundp && foundp != nodep) {
if (!(foundp->fileline()->warnIsOff(V3ErrorCode::MODDUP) || nodep->fileline()->warnIsOff(V3ErrorCode::MODDUP))) {
nodep->v3warn(MODDUP,"Duplicate declaration of module: "<<nodep->prettyName()<<endl
<<foundp->warnMore()<<"... Location of original declaration");
}
nodep->unlinkFrBack();
pushDeletep(nodep); nodep=NULL;
} else if (!foundp) {
m_mods.rootp()->insert(nodep->name(), new VSymEnt(&m_mods, nodep));
}
}
//if (debug()>=9) m_mods.dump(cout, "-syms: ");
}