mirror of
https://github.com/verilator/verilator.git
synced 2025-04-30 04:26:55 +00:00
Internals: Move V3Param code. No functional change.
This commit is contained in:
Wilson Snyder
parent
d56b923eaa
commit
04febb1944
409
src/V3Param.cpp
409
src/V3Param.cpp
@ -65,6 +65,7 @@
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//######################################################################
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// Hierarchical block and parameter db (modules without parameter is also handled)
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class ParameterizedHierBlocks final {
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typedef std::multimap<string, const V3HierarchicalBlockOption*> HierBlockOptsByOrigName;
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typedef HierBlockOptsByOrigName::const_iterator HierMapIt;
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@ -195,10 +196,9 @@ public:
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};
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//######################################################################
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// Param state, as a visitor of each AstNode
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// Process parameter visitor
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class ParamVisitor final : public AstNVisitor {
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private:
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// NODE STATE
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// AstNodeModule::user5() // bool True if processed
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// AstGenFor::user5() // bool True if processed
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@ -531,7 +531,209 @@ private:
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}
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return newmodp;
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}
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void visitCellDeparam(AstCell* nodep, const string& hierName);
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void visitCellDeparam(AstCell* nodep, const string& hierName) {
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// Cell: Check for parameters in the instantiation.
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iterateChildren(nodep);
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UASSERT_OBJ(nodep->modp(), nodep, "Not linked?");
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// We always run this, even if no parameters, as need to look for interfaces,
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// and remove any recursive references
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{
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UINFO(4, "De-parameterize: " << nodep << endl);
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// Create new module name with _'s between the constants
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if (debug() >= 10) nodep->dumpTree(cout, "-cell: ");
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// Evaluate all module constants
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V3Const::constifyParamsEdit(nodep);
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AstNodeModule* srcModp = nodep->modp();
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srcModp->hierName(hierName + "." + nodep->name());
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// Make sure constification worked
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// Must be a separate loop, as constant conversion may have changed some pointers.
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// if (debug()) nodep->dumpTree(cout, "-cel2: ");
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string longname = srcModp->name();
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bool any_overrides = false;
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// Must always clone __Vrcm (recursive modules)
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if (nodep->recursive()) any_overrides = true;
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longname += "_";
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if (debug() > 8) nodep->paramsp()->dumpTreeAndNext(cout, "-cellparams: ");
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for (AstPin* pinp = nodep->paramsp(); pinp; pinp = VN_CAST(pinp->nextp(), Pin)) {
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if (!pinp->exprp()) continue; // No-connect
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if (AstVar* modvarp = pinp->modVarp()) {
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if (!modvarp->isGParam()) {
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pinp->v3error("Attempted parameter setting of non-parameter: Param "
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<< pinp->prettyNameQ() << " of " << nodep->prettyNameQ());
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} else if (VN_IS(pinp->exprp(), InitArray)
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&& arraySubDTypep(modvarp->subDTypep())) {
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// Array assigned to array
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AstNode* exprp = pinp->exprp();
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longname
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+= "_" + paramSmallName(srcModp, modvarp) + paramValueNumber(exprp);
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any_overrides = true;
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} else {
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AstConst* exprp = VN_CAST(pinp->exprp(), Const);
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AstConst* origp = VN_CAST(modvarp->valuep(), Const);
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if (!exprp) {
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// if (debug()) pinp->dumpTree(cout, "error:");
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pinp->v3error("Can't convert defparam value to constant: Param "
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<< pinp->prettyNameQ() << " of "
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<< nodep->prettyNameQ());
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pinp->exprp()->replaceWith(new AstConst(
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pinp->fileline(), AstConst::WidthedValue(), modvarp->width(), 0));
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} else if (origp && exprp->sameTree(origp)) {
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// Setting parameter to its default value. Just ignore it.
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// This prevents making additional modules, and makes coverage more
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// obvious as it won't show up under a unique module page name.
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} else if (exprp->num().isDouble() || exprp->num().isString()
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|| exprp->num().isFourState() || exprp->num().width() != 32) {
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longname += ("_" + paramSmallName(srcModp, modvarp)
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+ paramValueNumber(exprp));
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any_overrides = true;
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} else {
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longname += ("_" + paramSmallName(srcModp, modvarp)
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+ exprp->num().ascii(false));
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any_overrides = true;
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}
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}
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} else if (AstParamTypeDType* modvarp = pinp->modPTypep()) {
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AstNodeDType* exprp = VN_CAST(pinp->exprp(), NodeDType);
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AstNodeDType* origp = modvarp->subDTypep();
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if (!exprp) {
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pinp->v3error("Parameter type pin value isn't a type: Param "
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<< pinp->prettyNameQ() << " of " << nodep->prettyNameQ());
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} else if (!origp) {
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pinp->v3error("Parameter type variable isn't a type: Param "
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<< modvarp->prettyNameQ());
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} else {
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UINFO(9, "Parameter type assignment expr=" << exprp << " to " << origp
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<< endl);
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if (exprp->sameTree(origp)) {
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// Setting parameter to its default value. Just ignore it.
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// This prevents making additional modules, and makes coverage more
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// obvious as it won't show up under a unique module page name.
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} else {
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V3Const::constifyParamsEdit(exprp);
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longname += "_" + paramSmallName(srcModp, modvarp)
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+ paramValueNumber(exprp);
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any_overrides = true;
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}
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}
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} else {
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pinp->v3error("Parameter not found in sub-module: Param "
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<< pinp->prettyNameQ() << " of " << nodep->prettyNameQ());
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}
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}
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IfaceRefRefs ifaceRefRefs;
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for (AstPin* pinp = nodep->pinsp(); pinp; pinp = VN_CAST(pinp->nextp(), Pin)) {
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AstVar* modvarp = pinp->modVarp();
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if (modvarp->isIfaceRef()) {
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AstIfaceRefDType* portIrefp = VN_CAST(modvarp->subDTypep(), IfaceRefDType);
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if (!portIrefp && arraySubDTypep(modvarp->subDTypep())) {
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portIrefp = VN_CAST(arraySubDTypep(modvarp->subDTypep()), IfaceRefDType);
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}
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AstIfaceRefDType* pinIrefp = nullptr;
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AstNode* exprp = pinp->exprp();
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AstVar* varp = (exprp && VN_IS(exprp, VarRef)) ? VN_CAST(exprp, VarRef)->varp()
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: nullptr;
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if (varp && varp->subDTypep() && VN_IS(varp->subDTypep(), IfaceRefDType)) {
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pinIrefp = VN_CAST(varp->subDTypep(), IfaceRefDType);
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} else if (varp && varp->subDTypep() && arraySubDTypep(varp->subDTypep())
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&& VN_CAST(arraySubDTypep(varp->subDTypep()), IfaceRefDType)) {
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pinIrefp = VN_CAST(arraySubDTypep(varp->subDTypep()), IfaceRefDType);
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} else if (exprp && exprp->op1p() && VN_IS(exprp->op1p(), VarRef)
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&& VN_CAST(exprp->op1p(), VarRef)->varp()
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&& VN_CAST(exprp->op1p(), VarRef)->varp()->subDTypep()
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&& arraySubDTypep(
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VN_CAST(exprp->op1p(), VarRef)->varp()->subDTypep())
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&& VN_CAST(arraySubDTypep(
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VN_CAST(exprp->op1p(), VarRef)->varp()->subDTypep()),
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IfaceRefDType)) {
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pinIrefp = VN_CAST(
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arraySubDTypep(VN_CAST(exprp->op1p(), VarRef)->varp()->subDTypep()),
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IfaceRefDType);
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}
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UINFO(9, " portIfaceRef " << portIrefp << endl);
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if (!portIrefp) {
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pinp->v3error("Interface port " << modvarp->prettyNameQ()
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<< " is not an interface " << modvarp);
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} else if (!pinIrefp) {
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pinp->v3error("Interface port "
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<< modvarp->prettyNameQ()
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<< " is not connected to interface/modport pin expression");
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} else {
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UINFO(9, " pinIfaceRef " << pinIrefp << endl);
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if (portIrefp->ifaceViaCellp() != pinIrefp->ifaceViaCellp()) {
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UINFO(9, " IfaceRefDType needs reconnect " << pinIrefp << endl);
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longname += ("_" + paramSmallName(srcModp, pinp->modVarp())
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+ paramValueNumber(pinIrefp));
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any_overrides = true;
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ifaceRefRefs.push_back(make_pair(portIrefp, pinIrefp));
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if (portIrefp->ifacep() != pinIrefp->ifacep()
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// Might be different only due to param cloning, so check names too
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&& portIrefp->ifaceName() != pinIrefp->ifaceName()) {
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pinp->v3error("Port "
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<< pinp->prettyNameQ() << " expects "
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<< AstNode::prettyNameQ(portIrefp->ifaceName())
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<< " interface but pin connects "
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<< AstNode::prettyNameQ(pinIrefp->ifaceName())
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<< " interface");
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}
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}
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}
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}
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}
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if (!any_overrides) {
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UINFO(8, "Cell parameters all match original values, skipping expansion.\n");
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} else if (AstNodeModule* modp
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= m_hierBlocks.findByParams(srcModp->name(), nodep->paramsp(), m_modp)) {
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nodep->modp(modp);
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nodep->modName(modp->name());
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modp->dead(false);
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// We need to relink the pins to the new module
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relinkPinsByName(nodep->pinsp(), modp);
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} else {
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// If the name is very long, we don't want to overwhelm the filename limit
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// We don't do this always, as it aids debugability to have intuitive naming.
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// TODO can use new V3Name hash replacement instead of this
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// Shorter name is convenient for hierarchical block
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string newname = moduleCalcName(srcModp, nodep, longname);
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UINFO(4,
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"Name: " << srcModp->name() << "->" << longname << "->" << newname << endl);
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//
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// Already made this flavor?
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AstNodeModule* cellmodp = nullptr;
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auto iter = m_modNameMap.find(newname);
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if (iter != m_modNameMap.end()) cellmodp = iter->second.m_modp;
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if (!cellmodp) {
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cellmodp = deepCloneModule(srcModp, nodep, newname, ifaceRefRefs);
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iter = m_modNameMap.find(newname);
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UASSERT(iter != m_modNameMap.end(), "should find just-made module");
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} else {
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UINFO(4, " De-parameterize to old: " << cellmodp << endl);
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}
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// Have child use this module instead.
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nodep->modp(cellmodp);
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nodep->modName(newname);
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// We need to relink the pins to the new module
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CloneMap* clonemapp = &(iter->second.m_cloneMap);
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relinkPins(clonemapp, nodep->pinsp());
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UINFO(8, " Done with " << cellmodp << endl);
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} // if any_overrides
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nodep->recursive(false);
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// Delete the parameters from the cell; they're not relevant any longer.
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if (nodep->paramsp()) nodep->paramsp()->unlinkFrBackWithNext()->deleteTree();
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UINFO(8, " Done with " << nodep << endl);
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// if (debug() >= 10)
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// v3Global.rootp()->dumpTreeFile(v3Global.debugFilename("param-out.tree"));
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}
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// Now remember to process the child module at the end of the module
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m_todoModps.insert(make_pair(nodep->modp()->level(), nodep->modp()));
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}
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void visitModules() {
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// Loop on all modules left to process
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// Hitting a cell adds to the appropriate level of this level-sorted list,
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@ -877,207 +1079,6 @@ public:
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virtual ~ParamVisitor() override = default;
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};
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//----------------------------------------------------------------------
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// VISITs
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void ParamVisitor::visitCellDeparam(AstCell* nodep, const string& hierName) {
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// Cell: Check for parameters in the instantiation.
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iterateChildren(nodep);
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UASSERT_OBJ(nodep->modp(), nodep, "Not linked?");
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// We always run this, even if no parameters, as need to look for interfaces,
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// and remove any recursive references
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{
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UINFO(4, "De-parameterize: " << nodep << endl);
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// Create new module name with _'s between the constants
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if (debug() >= 10) nodep->dumpTree(cout, "-cell: ");
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// Evaluate all module constants
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V3Const::constifyParamsEdit(nodep);
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AstNodeModule* srcModp = nodep->modp();
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srcModp->hierName(hierName + "." + nodep->name());
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// Make sure constification worked
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// Must be a separate loop, as constant conversion may have changed some pointers.
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// if (debug()) nodep->dumpTree(cout, "-cel2: ");
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string longname = srcModp->name();
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bool any_overrides = false;
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// Must always clone __Vrcm (recursive modules)
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if (nodep->recursive()) any_overrides = true;
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longname += "_";
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if (debug() > 8) nodep->paramsp()->dumpTreeAndNext(cout, "-cellparams: ");
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for (AstPin* pinp = nodep->paramsp(); pinp; pinp = VN_CAST(pinp->nextp(), Pin)) {
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if (!pinp->exprp()) continue; // No-connect
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if (AstVar* modvarp = pinp->modVarp()) {
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if (!modvarp->isGParam()) {
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pinp->v3error("Attempted parameter setting of non-parameter: Param "
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<< pinp->prettyNameQ() << " of " << nodep->prettyNameQ());
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} else if (VN_IS(pinp->exprp(), InitArray)
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&& arraySubDTypep(modvarp->subDTypep())) {
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// Array assigned to array
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AstNode* exprp = pinp->exprp();
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longname += "_" + paramSmallName(srcModp, modvarp) + paramValueNumber(exprp);
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any_overrides = true;
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} else {
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AstConst* exprp = VN_CAST(pinp->exprp(), Const);
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AstConst* origp = VN_CAST(modvarp->valuep(), Const);
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if (!exprp) {
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// if (debug()) pinp->dumpTree(cout, "error:");
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pinp->v3error("Can't convert defparam value to constant: Param "
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<< pinp->prettyNameQ() << " of " << nodep->prettyNameQ());
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pinp->exprp()->replaceWith(new AstConst(
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pinp->fileline(), AstConst::WidthedValue(), modvarp->width(), 0));
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} else if (origp && exprp->sameTree(origp)) {
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// Setting parameter to its default value. Just ignore it.
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// This prevents making additional modules, and makes coverage more
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// obvious as it won't show up under a unique module page name.
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} else if (exprp->num().isDouble() || exprp->num().isString()
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|| exprp->num().isFourState() || exprp->num().width() != 32) {
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longname
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+= ("_" + paramSmallName(srcModp, modvarp) + paramValueNumber(exprp));
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any_overrides = true;
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} else {
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longname += ("_" + paramSmallName(srcModp, modvarp)
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+ exprp->num().ascii(false));
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any_overrides = true;
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}
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}
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} else if (AstParamTypeDType* modvarp = pinp->modPTypep()) {
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AstNodeDType* exprp = VN_CAST(pinp->exprp(), NodeDType);
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AstNodeDType* origp = modvarp->subDTypep();
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if (!exprp) {
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pinp->v3error("Parameter type pin value isn't a type: Param "
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<< pinp->prettyNameQ() << " of " << nodep->prettyNameQ());
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} else if (!origp) {
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pinp->v3error("Parameter type variable isn't a type: Param "
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<< modvarp->prettyNameQ());
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} else {
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UINFO(9,
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"Parameter type assignment expr=" << exprp << " to " << origp << endl);
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if (exprp->sameTree(origp)) {
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// Setting parameter to its default value. Just ignore it.
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// This prevents making additional modules, and makes coverage more
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// obvious as it won't show up under a unique module page name.
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} else {
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V3Const::constifyParamsEdit(exprp);
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longname
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+= "_" + paramSmallName(srcModp, modvarp) + paramValueNumber(exprp);
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any_overrides = true;
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}
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}
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} else {
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pinp->v3error("Parameter not found in sub-module: Param "
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<< pinp->prettyNameQ() << " of " << nodep->prettyNameQ());
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}
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}
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IfaceRefRefs ifaceRefRefs;
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for (AstPin* pinp = nodep->pinsp(); pinp; pinp = VN_CAST(pinp->nextp(), Pin)) {
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AstVar* modvarp = pinp->modVarp();
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if (modvarp->isIfaceRef()) {
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AstIfaceRefDType* portIrefp = VN_CAST(modvarp->subDTypep(), IfaceRefDType);
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if (!portIrefp && arraySubDTypep(modvarp->subDTypep())) {
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portIrefp = VN_CAST(arraySubDTypep(modvarp->subDTypep()), IfaceRefDType);
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}
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AstIfaceRefDType* pinIrefp = nullptr;
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AstNode* exprp = pinp->exprp();
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AstVar* varp
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= (exprp && VN_IS(exprp, VarRef)) ? VN_CAST(exprp, VarRef)->varp() : nullptr;
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if (varp && varp->subDTypep() && VN_IS(varp->subDTypep(), IfaceRefDType)) {
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pinIrefp = VN_CAST(varp->subDTypep(), IfaceRefDType);
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} else if (varp && varp->subDTypep() && arraySubDTypep(varp->subDTypep())
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&& VN_CAST(arraySubDTypep(varp->subDTypep()), IfaceRefDType)) {
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pinIrefp = VN_CAST(arraySubDTypep(varp->subDTypep()), IfaceRefDType);
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} else if (exprp && exprp->op1p() && VN_IS(exprp->op1p(), VarRef)
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&& VN_CAST(exprp->op1p(), VarRef)->varp()
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&& VN_CAST(exprp->op1p(), VarRef)->varp()->subDTypep()
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&& arraySubDTypep(VN_CAST(exprp->op1p(), VarRef)->varp()->subDTypep())
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&& VN_CAST(
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arraySubDTypep(VN_CAST(exprp->op1p(), VarRef)->varp()->subDTypep()),
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IfaceRefDType)) {
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pinIrefp = VN_CAST(
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arraySubDTypep(VN_CAST(exprp->op1p(), VarRef)->varp()->subDTypep()),
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IfaceRefDType);
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}
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UINFO(9, " portIfaceRef " << portIrefp << endl);
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if (!portIrefp) {
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pinp->v3error("Interface port " << modvarp->prettyNameQ()
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<< " is not an interface " << modvarp);
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} else if (!pinIrefp) {
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pinp->v3error("Interface port "
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<< modvarp->prettyNameQ()
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<< " is not connected to interface/modport pin expression");
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} else {
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UINFO(9, " pinIfaceRef " << pinIrefp << endl);
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if (portIrefp->ifaceViaCellp() != pinIrefp->ifaceViaCellp()) {
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UINFO(9, " IfaceRefDType needs reconnect " << pinIrefp << endl);
|
||||
longname += ("_" + paramSmallName(srcModp, pinp->modVarp())
|
||||
+ paramValueNumber(pinIrefp));
|
||||
any_overrides = true;
|
||||
ifaceRefRefs.push_back(make_pair(portIrefp, pinIrefp));
|
||||
if (portIrefp->ifacep() != pinIrefp->ifacep()
|
||||
// Might be different only due to param cloning, so check names too
|
||||
&& portIrefp->ifaceName() != pinIrefp->ifaceName()) {
|
||||
pinp->v3error("Port " << pinp->prettyNameQ() << " expects "
|
||||
<< AstNode::prettyNameQ(portIrefp->ifaceName())
|
||||
<< " interface but pin connects "
|
||||
<< AstNode::prettyNameQ(pinIrefp->ifaceName())
|
||||
<< " interface");
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (!any_overrides) {
|
||||
UINFO(8, "Cell parameters all match original values, skipping expansion.\n");
|
||||
} else if (AstNodeModule* modp
|
||||
= m_hierBlocks.findByParams(srcModp->name(), nodep->paramsp(), m_modp)) {
|
||||
nodep->modp(modp);
|
||||
nodep->modName(modp->name());
|
||||
modp->dead(false);
|
||||
// We need to relink the pins to the new module
|
||||
relinkPinsByName(nodep->pinsp(), modp);
|
||||
} else {
|
||||
// If the name is very long, we don't want to overwhelm the filename limit
|
||||
// We don't do this always, as it aids debugability to have intuitive naming.
|
||||
// TODO can use new V3Name hash replacement instead of this
|
||||
// Shorter name is convenient for hierarchical block
|
||||
string newname = moduleCalcName(srcModp, nodep, longname);
|
||||
UINFO(4, "Name: " << srcModp->name() << "->" << longname << "->" << newname << endl);
|
||||
//
|
||||
// Already made this flavor?
|
||||
AstNodeModule* cellmodp = nullptr;
|
||||
auto iter = m_modNameMap.find(newname);
|
||||
if (iter != m_modNameMap.end()) cellmodp = iter->second.m_modp;
|
||||
if (!cellmodp) {
|
||||
cellmodp = deepCloneModule(srcModp, nodep, newname, ifaceRefRefs);
|
||||
iter = m_modNameMap.find(newname);
|
||||
UASSERT(iter != m_modNameMap.end(), "should find just-made module");
|
||||
} else {
|
||||
UINFO(4, " De-parameterize to old: " << cellmodp << endl);
|
||||
}
|
||||
// Have child use this module instead.
|
||||
nodep->modp(cellmodp);
|
||||
nodep->modName(newname);
|
||||
// We need to relink the pins to the new module
|
||||
CloneMap* clonemapp = &(iter->second.m_cloneMap);
|
||||
relinkPins(clonemapp, nodep->pinsp());
|
||||
UINFO(8, " Done with " << cellmodp << endl);
|
||||
} // if any_overrides
|
||||
|
||||
nodep->recursive(false);
|
||||
|
||||
// Delete the parameters from the cell; they're not relevant any longer.
|
||||
if (nodep->paramsp()) nodep->paramsp()->unlinkFrBackWithNext()->deleteTree();
|
||||
UINFO(8, " Done with " << nodep << endl);
|
||||
// if (debug() >= 10)
|
||||
// v3Global.rootp()->dumpTreeFile(v3Global.debugFilename("param-out.tree"));
|
||||
}
|
||||
|
||||
// Now remember to process the child module at the end of the module
|
||||
m_todoModps.insert(make_pair(nodep->modp()->level(), nodep->modp()));
|
||||
}
|
||||
|
||||
//######################################################################
|
||||
// Param class functions
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user