C++ AstNodeModule::nextp方法代码示例

void V3Inline::inlineAll(AstNetlist* nodep) {
    UINFO(2,__FUNCTION__<<": "<<endl);
    InlineMarkVisitor mvisitor (nodep);
    InlineVisitor visitor (nodep);
    // Remove all modules that were inlined
    // V3Dead will also clean them up, but if we have debug on, it's a good
    // idea to avoid dumping the hugely exploded tree.
    AstNodeModule* nextmodp;
    for (AstNodeModule* modp = v3Global.rootp()->modulesp(); modp; modp=nextmodp) {
	nextmodp = modp->nextp()->castNodeModule();
	if (modp->user1()) { // Was inlined
	    modp->unlinkFrBack()->deleteTree(); modp=NULL;
	}
    }
}

void V3LinkLevel::wrapTopPackages(AstNetlist* netlistp) {
    // Instantiate all packages under the top wrapper
    // This way all later SCOPE based optimizations can ignore packages
    AstNodeModule* newmodp = netlistp->modulesp();
    if (!newmodp || !newmodp->isTop()) netlistp->v3fatalSrc("No TOP module found to process");
    for (AstNodeModule* modp = netlistp->modulesp(); modp; modp=modp->nextp()->castNodeModule()) {
	if (modp->castPackage()) {
	    AstCell* cellp = new AstCell(modp->fileline(),
					 // Could add __03a__03a="::" to prevent conflict
					 // with module names/"v"
					 modp->name(),
					 modp->name(),
					 NULL, NULL, NULL);
	    cellp->modp(modp);
	    newmodp->addStmtp(cellp);
	}
    }
}

void V3LinkLevel::wrapTopCell(AstNetlist* netlistp) {
    AstNodeModule* newmodp = netlistp->modulesp();
    if (!newmodp || !newmodp->isTop()) netlistp->v3fatalSrc("No TOP module found to process");
    AstNodeModule* oldmodp = newmodp->nextp()->castNodeModule();
    if (!oldmodp) netlistp->v3fatalSrc("No module found to process");

    // Add instance
    AstCell* cellp = new AstCell(newmodp->fileline(),
				 ((v3Global.opt.l2Name()!="") ? v3Global.opt.l2Name() : oldmodp->name()),
				 oldmodp->name(),
				 NULL, NULL, NULL);
    cellp->modp(oldmodp);
    newmodp->addStmtp(cellp);

    // Add pins
    for (AstNode* subnodep=oldmodp->stmtsp(); subnodep; subnodep = subnodep->nextp()) {
	if (AstVar* oldvarp=subnodep->castVar()) {
	    UINFO(8,"VARWRAP "<<oldvarp<<endl);
	    if (oldvarp->isIO()) {
		AstVar* varp = oldvarp->cloneTree(false);
		newmodp->addStmtp(varp);
		varp->sigPublic(true);	// User needs to be able to get to it...
		if (oldvarp->isIO()) {
		    oldvarp->primaryIO(true);
		    varp->primaryIO(true);
		}
		if (varp->isIO() && v3Global.opt.systemC()) {
		    varp->sc(true);
		    // User can see trace one level down from the wrapper
		    // Avoids packing & unpacking SC signals a second time
		    varp->trace(false);
		}

		AstPin* pinp = new AstPin(oldvarp->fileline(),0,oldvarp->name(),
					  new AstVarRef(varp->fileline(),
							varp, oldvarp->isOutput()));
		// Skip length and width comp; we know it's a direct assignment
		pinp->modVarp(oldvarp);
		cellp->addPinsp(pinp);
	    }
	}
    }
}

    // METHODS
    void deadCheckMod() {
	// Kill any unused modules
	// V3LinkCells has a graph that is capable of this too, but we need to do it
	// after we've done all the generate blocks
	for (bool retry=true; retry; ) {
	    retry=false;
	    AstNodeModule* nextmodp;
	    for (AstNodeModule* modp = v3Global.rootp()->modulesp(); modp; modp=nextmodp) {
		nextmodp = modp->nextp()->castNodeModule();
		if (modp->level()>2	&& modp->user1()==0 && !modp->internal()) {
		    // > 2 because L1 is the wrapper, L2 is the top user module
		    UINFO(4,"  Dead module "<<modp<<endl);
		    // And its children may now be killable too; correct counts
		    // Recurse, as cells may not be directly under the module but in a generate
		    DeadModVisitor visitor(modp);
		    modp->unlinkFrBack()->deleteTree(); VL_DANGLING(modp);
		    retry = true;
		}
	    }
	}
    }

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);
}

void EmitCSyms::emitSymImp() {
    UINFO(6,__FUNCTION__<<": "<<endl);
    string filename = v3Global.opt.makeDir()+"/"+symClassName()+".cpp";
    AstCFile* cfilep = newCFile(filename, true/*slow*/, true/*source*/);
    cfilep->support(true);
    V3OutCFile cf (filename);
    m_ofp = &cf;
    ofp()->putsHeader();
    puts("// DESCR" "IPTION: Verilator output: Symbol table implementation internals\n");
    puts("\n");

    // Includes
    puts("#include \""+symClassName()+".h\"\n");
    for (AstNodeModule* nodep = v3Global.rootp()->modulesp(); nodep; nodep=nodep->nextp()->castNodeModule()) {
	puts("#include \""+modClassName(nodep)+".h\"\n");
    }

    //puts("\n// GLOBALS\n");

    puts("\n// FUNCTIONS\n");
    puts(symClassName()+"::"+symClassName()+"("+topClassName()+"* topp, const char* namep)\n");
    puts("\t// Setup locals\n");
    puts("\t: __Vm_namep(namep)\n");	// No leak, as we get destroyed when the top is destroyed
    puts("\t, __Vm_activity(false)\n");
    puts("\t, __Vm_didInit(false)\n");
    puts("\t// Setup submodule names\n");
    char comma=',';
    for (vector<ScopeModPair>::iterator it = m_scopes.begin(); it != m_scopes.end(); ++it) {
	AstScope* scopep = it->first;  AstNodeModule* modp = it->second;
	if (modp->isTop()) {
	} else {
	    ofp()->printf("\t%c %-30s ", comma, scopep->nameDotless().c_str());
	    puts("(Verilated::catName(topp->name(),");
	    // The "." is added by catName
	    putsQuoted(scopep->prettyName());
	    puts("))\n");
	    comma=',';
	}
    }
    puts("{\n");

    puts("// Pointer to top level\n");
    puts("TOPp = topp;\n");
    puts("// Setup each module's pointers to their submodules\n");
    for (vector<ScopeModPair>::iterator it = m_scopes.begin(); it != m_scopes.end(); ++it) {
	AstScope* scopep = it->first;  AstNodeModule* modp = it->second;
	if (!modp->isTop()) {
	    string arrow = scopep->name();
	    string::size_type pos;
	    while ((pos=arrow.find(".")) != string::npos) {
		arrow.replace(pos, 1, "->");
	    }
	    if (arrow.substr(0,5) == "TOP->") arrow.replace(0,5,"TOPp->");
	    ofp()->printf("%-30s ", arrow.c_str());
	    puts(" = &");
	    puts(scopep->nameDotless()+";\n");
	}
    }

    puts("// Setup each module's pointer back to symbol table (for public functions)\n");
    puts("TOPp->__Vconfigure(this, true);\n");
    for (vector<ScopeModPair>::iterator it = m_scopes.begin(); it != m_scopes.end(); ++it) {
	AstScope* scopep = it->first;  AstNodeModule* modp = it->second;
	if (!modp->isTop()) {
	    // first is used by AstCoverDecl's call to __vlCoverInsert
	    bool first = !modp->user1();
	    modp->user1(true);
	    puts(scopep->nameDotless()+".__Vconfigure(this, "
		 +(first?"true":"false")
		 +");\n");
	}
    }

    puts("// Setup scope names\n");
    for (ScopeNames::iterator it = m_scopeNames.begin(); it != m_scopeNames.end(); ++it) {
	puts("__Vscope_"+it->second.m_symName+".configure(this,name(),");
	putsQuoted(it->second.m_prettyName);
	puts(");\n");
    }

    if (v3Global.dpi()) {
	puts("// Setup export functions\n");
	puts("for (int __Vfinal=0; __Vfinal<2; __Vfinal++) {\n");
	for (ScopeFuncs::iterator it = m_scopeFuncs.begin(); it != m_scopeFuncs.end(); ++it) {
	    AstScopeName* scopep = it->second.m_scopep;
	    AstCFunc* funcp = it->second.m_funcp;
	    AstNodeModule* modp = it->second.m_modp;
	    if (funcp->dpiExport()) {
		puts("__Vscope_"+scopep->scopeSymName()+".exportInsert(__Vfinal,");
		putsQuoted(funcp->cname());
		puts(", (void*)(&");
		puts(modClassName(modp));
		puts("::");
		puts(funcp->name());
		puts("));\n");
	    }
	}
	// It would be less code if each module inserted its own variables.
	// Someday.  For now public isn't common.
	for (ScopeVars::iterator it = m_scopeVars.begin(); it != m_scopeVars.end(); ++it) {
//.........这里部分代码省略.........

void EmitCSyms::emitSymHdr() {
    UINFO(6,__FUNCTION__<<": "<<endl);
    string filename = v3Global.opt.makeDir()+"/"+symClassName()+".h";
    newCFile(filename, true/*slow*/, false/*source*/);
    V3OutCFile hf (filename);
    m_ofp = &hf;

    ofp()->putsHeader();
    puts("// DESCR" "IPTION: Verilator output: Symbol table internal header\n");
    puts("//\n");
    puts("// Internal details; most calling programs do not need this header\n");
    puts("\n");

    puts("#ifndef _"+symClassName()+"_H_\n");
    puts("#define _"+symClassName()+"_H_\n");
    puts("\n");

    if (optSystemPerl()) puts("#include \"systemperl.h\"\n");
    else if (optSystemC()) puts("#include \"systemc.h\"\n");

    if (optSystemPerl() || optSystemC()) {
	puts("#include \"verilated_sc.h\"\n");
    }
    if (v3Global.needHeavy()) {
	puts("#include \"verilated_heavy.h\"\n");
    } else {
	puts("#include \"verilated.h\"\n");
    }

    // for
    puts("\n// INCLUDE MODULE CLASSES\n");
    for (AstNodeModule* nodep = v3Global.rootp()->modulesp(); nodep; nodep=nodep->nextp()->castNodeModule()) {
	puts("#include \""+modClassName(nodep)+".h\"\n");
    }

    if (v3Global.dpi()) {
	puts ("\n// DPI TYPES for DPI Export callbacks (Internal use)\n");
	map<string,int> types;  // Remove duplicates and sort
	for (ScopeFuncs::iterator it = m_scopeFuncs.begin(); it != m_scopeFuncs.end(); ++it) {
	    AstCFunc* funcp = it->second.m_funcp;
	    if (funcp->dpiExport()) {
		string cbtype = v3Global.opt.prefix()+"__Vcb_"+funcp->cname()+"_t";
		types["typedef void (*"+cbtype+") ("+cFuncArgs(funcp)+");\n"] = 1;
	    }
	}
	for (map<string,int>::iterator it = types.begin(); it != types.end(); ++it) {
	    puts(it->first);
	}
    }

    puts("\n// SYMS CLASS\n");
    puts((string)"class "+symClassName()+" : public VerilatedSyms {\n");
    ofp()->putsPrivate(false);  // public:

    puts("\n// LOCAL STATE\n");
    ofp()->putAlign(V3OutFile::AL_AUTO, sizeof(vluint64_t));
    puts("const char* __Vm_namep;\n");	// Must be before subcells, as constructor order needed before _vlCoverInsert.
    ofp()->putAlign(V3OutFile::AL_AUTO, sizeof(bool));
    puts("bool\t__Vm_activity;\t\t///< Used by trace routines to determine change occurred\n");
    ofp()->putAlign(V3OutFile::AL_AUTO, sizeof(bool));
    puts("bool\t__Vm_didInit;\n");

    ofp()->putAlign(V3OutFile::AL_AUTO, sizeof(vluint64_t));
    puts("\n// SUBCELL STATE\n");
    for (vector<ScopeModPair>::iterator it = m_scopes.begin(); it != m_scopes.end(); ++it) {
	AstScope* scopep = it->first;  AstNodeModule* modp = it->second;
	if (modp->isTop()) {
	    ofp()->printf("%-30s ", (modClassName(modp)+"*").c_str());
	    puts(scopep->nameDotless()+"p;\n");
	}
	else {
	    ofp()->printf("%-30s ", (modClassName(modp)+"").c_str());
	    puts(scopep->nameDotless()+";\n");
	}
    }

    puts("\n// COVERAGE\n");
    if (m_coverBins) {
	ofp()->putAlign(V3OutFile::AL_AUTO, sizeof(uint32_t));
	puts("uint32_t\t__Vcoverage["); puts(cvtToStr(m_coverBins)); puts("];\n");
    }

    puts("\n// SCOPE NAMES\n");
    for (ScopeNames::iterator it = m_scopeNames.begin(); it != m_scopeNames.end(); ++it) {
	puts("VerilatedScope __Vscope_"+it->second.m_symName+";\n");
    }

    puts("\n// CREATORS\n");
    puts(symClassName()+"("+topClassName()+"* topp, const char* namep);\n");
    puts((string)"~"+symClassName()+"() {};\n");

    puts("\n// METHODS\n");
    puts("inline const char* name() { return __Vm_namep; }\n");
    puts("inline bool getClearActivity() { bool r=__Vm_activity; __Vm_activity=false; return r;}\n");
    if (v3Global.opt.savable() ) {
	puts("void __Vserialize(VerilatedSerialize& os);\n");
	puts("void __Vdeserialize(VerilatedDeserialize& os);\n");
    }
    puts("\n");
    puts("} VL_ATTR_ALIGNED(64);\n");
//.........这里部分代码省略.........