mirror of
https://github.com/verilator/verilator.git
synced 2026-10-06 10:03:44 +02:00
Internals: Move iterators to AstNVisitor to avoid null this.
This commit is contained in:
Wilson Snyder
+95
-95
@@ -63,11 +63,11 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
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// VISITORS
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virtual void visit(AstNetlist* nodep) {
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nodep->iterateChildren(*this);
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iterateChildren(nodep);
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}
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virtual void visit(AstNodeModule* nodep) {
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putfs(nodep, nodep->verilogKwd()+" "+modClassName(nodep)+";\n");
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nodep->iterateChildren(*this);
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iterateChildren(nodep);
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putqs(nodep, "end"+nodep->verilogKwd()+"\n");
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}
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virtual void visit(AstNodeFTask* nodep) {
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@@ -76,7 +76,7 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
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puts(nodep->prettyName());
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puts(";\n");
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putqs(nodep, "begin\n"); // Only putfs the first time for each visitor; later for same node is putqs
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nodep->stmtsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->stmtsp());
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putqs(nodep, "end\n");
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}
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@@ -86,64 +86,64 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
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} else {
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putbs("begin : "+nodep->name()+"\n");
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}
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nodep->iterateChildren(*this);
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iterateChildren(nodep);
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puts("end\n");
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}
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virtual void visit(AstGenerate* nodep) {
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putfs(nodep, "generate\n");
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nodep->iterateChildren(*this);
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iterateChildren(nodep);
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putqs(nodep, "end\n");
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}
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virtual void visit(AstFinal* nodep) {
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putfs(nodep, "final begin\n");
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nodep->iterateChildren(*this);
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iterateChildren(nodep);
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putqs(nodep, "end\n");
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}
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virtual void visit(AstInitial* nodep) {
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putfs(nodep,"initial begin\n");
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nodep->iterateChildren(*this);
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iterateChildren(nodep);
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putqs(nodep, "end\n");
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}
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virtual void visit(AstAlways* nodep) {
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putfs(nodep,"always ");
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if (m_sensesp) m_sensesp->iterateAndNext(*this); // In active
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else nodep->sensesp()->iterateAndNext(*this);
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if (m_sensesp) iterateAndNextNull(m_sensesp); // In active
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else iterateAndNextNull(nodep->sensesp());
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putbs(" begin\n");
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nodep->bodysp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->bodysp());
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putqs(nodep,"end\n");
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}
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virtual void visit(AstAlwaysPublic* nodep) {
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putfs(nodep,"/*verilator public_flat_rw ");
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if (m_sensesp) m_sensesp->iterateAndNext(*this); // In active
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else nodep->sensesp()->iterateAndNext(*this);
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if (m_sensesp) iterateAndNextNull(m_sensesp); // In active
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else iterateAndNextNull(nodep->sensesp());
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putqs(nodep," ");
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nodep->bodysp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->bodysp());
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putqs(nodep,"*/\n");
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}
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virtual void visit(AstNodeAssign* nodep) {
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nodep->lhsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->lhsp());
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putfs(nodep," "+nodep->verilogKwd()+" ");
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nodep->rhsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->rhsp());
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if (!m_suppressSemi) puts(";\n");
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}
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virtual void visit(AstAssignDly* nodep) {
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nodep->lhsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->lhsp());
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putfs(nodep," <= ");
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nodep->rhsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->rhsp());
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puts(";\n");
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}
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virtual void visit(AstAssignAlias* nodep) {
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putbs("alias ");
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nodep->lhsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->lhsp());
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putfs(nodep," = ");
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nodep->rhsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->rhsp());
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if (!m_suppressSemi) puts(";\n");
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}
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virtual void visit(AstAssignW* nodep) {
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putfs(nodep,"assign ");
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nodep->lhsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->lhsp());
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putbs(" = ");
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nodep->rhsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->rhsp());
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if (!m_suppressSemi) puts(";\n");
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}
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virtual void visit(AstBreak* nodep) {
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@@ -154,7 +154,7 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
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// AstSenItem is called for dumping in isolation by V3Order
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putfs(nodep,"@(");
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for (AstNode* expp=nodep->sensesp(); expp; expp = expp->nextp()) {
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expp->accept(*this);
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iterate(expp);
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if (expp->nextp()) putqs(expp->nextp()," or ");
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}
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puts(")");
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@@ -166,7 +166,7 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
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putfs(nodep,"");
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puts(nodep->edgeType().verilogKwd());
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if (nodep->sensp()) puts(" ");
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nodep->iterateChildren(*this);
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iterateChildren(nodep);
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}
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virtual void visit(AstNodeCase* nodep) {
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putfs(nodep,"");
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@@ -177,7 +177,7 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
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}
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puts(nodep->verilogKwd());
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puts(" (");
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nodep->exprp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->exprp());
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puts(")\n");
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if (const AstCase* casep = VN_CAST(nodep, Case)) {
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if (casep->fullPragma() || casep->parallelPragma()) {
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@@ -186,20 +186,20 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
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if (casep->parallelPragma()) puts(" parallel_case");
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}
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}
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nodep->itemsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->itemsp());
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putqs(nodep,"endcase\n");
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}
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virtual void visit(AstCaseItem* nodep) {
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if (nodep->condsp()) {
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nodep->condsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->condsp());
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} else putbs("default");
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putfs(nodep,": begin ");
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nodep->bodysp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->bodysp());
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putqs(nodep,"end\n");
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}
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virtual void visit(AstComment* nodep) {
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puts((string)"// "+nodep->name()+"\n");
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nodep->iterateChildren(*this);
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iterateChildren(nodep);
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}
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virtual void visit(AstContinue* nodep) {
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putbs("continue");
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@@ -212,11 +212,11 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
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void visitNodeDisplay(AstNode* nodep, AstNode* fileOrStrgp, const string& text, AstNode* exprsp) {
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putfs(nodep,nodep->verilogKwd());
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putbs(" (");
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if (fileOrStrgp) { fileOrStrgp->iterateAndNext(*this); putbs(","); }
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if (fileOrStrgp) { iterateAndNextNull(fileOrStrgp); putbs(","); }
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putsQuoted(text);
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for (AstNode* expp=exprsp; expp; expp = expp->nextp()) {
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puts(",");
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expp->iterateAndNext(*this);
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iterateAndNextNull(expp);
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}
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puts(");\n");
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}
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@@ -241,23 +241,23 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
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virtual void visit(AstFOpen* nodep) {
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putfs(nodep,nodep->verilogKwd());
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putbs(" (");
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if (nodep->filep()) nodep->filep()->iterateAndNext(*this);
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if (nodep->filep()) iterateAndNextNull(nodep->filep());
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putbs(",");
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if (nodep->filenamep()) nodep->filenamep()->iterateAndNext(*this);
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if (nodep->filenamep()) iterateAndNextNull(nodep->filenamep());
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putbs(",");
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if (nodep->modep()) nodep->modep()->iterateAndNext(*this);
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if (nodep->modep()) iterateAndNextNull(nodep->modep());
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puts(");\n");
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}
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virtual void visit(AstFClose* nodep) {
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putfs(nodep,nodep->verilogKwd());
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putbs(" (");
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if (nodep->filep()) nodep->filep()->iterateAndNext(*this);
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if (nodep->filep()) iterateAndNextNull(nodep->filep());
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puts(");\n");
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}
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virtual void visit(AstFFlush* nodep) {
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putfs(nodep,nodep->verilogKwd());
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putbs(" (");
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if (nodep->filep()) nodep->filep()->iterateAndNext(*this);
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if (nodep->filep()) iterateAndNextNull(nodep->filep());
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puts(");\n");
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}
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virtual void visit(AstJumpGo* nodep) {
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@@ -265,57 +265,57 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
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}
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virtual void visit(AstJumpLabel* nodep) {
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putbs("begin : "+cvtToStr((void*)(nodep))+"\n");
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if (nodep->stmtsp()) nodep->stmtsp()->iterateAndNext(*this);
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if (nodep->stmtsp()) iterateAndNextNull(nodep->stmtsp());
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puts("end\n");
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}
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virtual void visit(AstNodeReadWriteMem* nodep) {
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putfs(nodep,nodep->verilogKwd());
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putbs(" (");
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if (nodep->filenamep()) nodep->filenamep()->iterateAndNext(*this);
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if (nodep->filenamep()) iterateAndNextNull(nodep->filenamep());
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putbs(",");
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if (nodep->memp()) nodep->memp()->iterateAndNext(*this);
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if (nodep->lsbp()) { putbs(","); nodep->lsbp()->iterateAndNext(*this); }
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if (nodep->msbp()) { putbs(","); nodep->msbp()->iterateAndNext(*this); }
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if (nodep->memp()) iterateAndNextNull(nodep->memp());
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if (nodep->lsbp()) { putbs(","); iterateAndNextNull(nodep->lsbp()); }
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if (nodep->msbp()) { putbs(","); iterateAndNextNull(nodep->msbp()); }
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puts(");\n");
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}
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virtual void visit(AstSysFuncAsTask* nodep) {
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nodep->lhsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->lhsp());
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puts(";\n");
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}
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virtual void visit(AstSysIgnore* nodep) {
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putfs(nodep,nodep->verilogKwd());
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putbs(" (");
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nodep->exprsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->exprsp());
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puts(");\n");
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}
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virtual void visit(AstNodeFor* nodep) {
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putfs(nodep,"for (");
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m_suppressSemi = true;
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nodep->initsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->initsp());
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puts(";");
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nodep->condp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->condp());
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puts(";");
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nodep->incsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->incsp());
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m_suppressSemi = false;
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puts(") begin\n");
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nodep->bodysp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->bodysp());
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putqs(nodep,"end\n");
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}
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virtual void visit(AstRepeat* nodep) {
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putfs(nodep,"repeat (");
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nodep->countp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->countp());
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puts(") begin\n");
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nodep->bodysp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->bodysp());
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putfs(nodep,"end\n");
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}
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virtual void visit(AstWhile* nodep) {
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nodep->precondsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->precondsp());
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putfs(nodep,"while (");
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nodep->condp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->condp());
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puts(") begin\n");
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nodep->bodysp()->iterateAndNext(*this);
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nodep->incsp()->iterateAndNext(*this);
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nodep->precondsp()->iterateAndNext(*this); // Need to recompute before next loop
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iterateAndNextNull(nodep->bodysp());
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iterateAndNextNull(nodep->incsp());
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iterateAndNextNull(nodep->precondsp()); // Need to recompute before next loop
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putfs(nodep,"end\n");
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}
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virtual void visit(AstNodeIf* nodep) {
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@@ -326,19 +326,19 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
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if (ifp->unique0Pragma()) puts("unique0 ");
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}
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puts("if (");
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nodep->condp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->condp());
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puts(") begin\n");
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nodep->ifsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->ifsp());
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if (nodep->elsesp()) {
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putqs(nodep,"end\n");
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putqs(nodep,"else begin\n");
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nodep->elsesp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->elsesp());
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}
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putqs(nodep,"end\n");
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}
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virtual void visit(AstReturn* nodep) {
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putfs(nodep,"return ");
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nodep->lhsp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->lhsp());
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puts(";\n");
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}
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virtual void visit(AstStop* nodep) {
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@@ -354,22 +354,22 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
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}
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virtual void visit(AstCStmt* nodep) {
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putfs(nodep,"$_CSTMT(");
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nodep->bodysp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->bodysp());
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puts(");\n");
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}
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virtual void visit(AstCMath* nodep) {
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putfs(nodep,"$_CMATH(");
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nodep->bodysp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->bodysp());
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puts(");\n");
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}
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virtual void visit(AstUCStmt* nodep) {
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putfs(nodep,"$c(");
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nodep->bodysp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->bodysp());
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puts(");\n");
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}
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virtual void visit(AstUCFunc* nodep) {
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putfs(nodep,"$c(");
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nodep->bodysp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->bodysp());
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puts(")");
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}
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@@ -399,22 +399,22 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
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case 'k': putbs(""); break;
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case 'l': {
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if (!lhsp) { nodep->v3fatalSrc("emitVerilog() references undef node"); }
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else lhsp->iterateAndNext(*this);
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else iterateAndNextNull(lhsp);
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break;
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}
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case 'r': {
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if (!rhsp) { nodep->v3fatalSrc("emitVerilog() references undef node"); }
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else rhsp->iterateAndNext(*this);
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else iterateAndNextNull(rhsp);
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break;
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}
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case 't': {
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if (!thsp) { nodep->v3fatalSrc("emitVerilog() references undef node"); }
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else thsp->iterateAndNext(*this);
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else iterateAndNextNull(thsp);
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break;
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}
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case 'd': {
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if (!nodep->dtypep()) { nodep->v3fatalSrc("emitVerilog() references undef node"); }
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else nodep->dtypep()->iterateAndNext(*this);
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else iterateAndNextNull(nodep->dtypep());
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break;
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}
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default:
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@@ -439,10 +439,10 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
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}
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virtual void visit(AstAttrOf* nodep) {
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putfs(nodep,"$_ATTROF(");
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nodep->fromp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->fromp());
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if (nodep->dimp()) {
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putbs(",");
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nodep->dimp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->dimp());
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}
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puts(")");
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}
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@@ -453,16 +453,16 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
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int index = nodep->posIndex(pos);
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puts(cvtToStr(index));
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puts(":");
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itemp->accept(*this);
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iterate(itemp);
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if (itemp->nextp()) putbs(",");
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}
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puts("}");
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}
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virtual void visit(AstNodeCond* nodep) {
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putbs("(");
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nodep->condp()->iterateAndNext(*this); putfs(nodep," ? ");
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nodep->expr1p()->iterateAndNext(*this); putbs(" : ");
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nodep->expr2p()->iterateAndNext(*this); puts(")");
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iterateAndNextNull(nodep->condp()); putfs(nodep," ? ");
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iterateAndNextNull(nodep->expr1p()); putbs(" : ");
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iterateAndNextNull(nodep->expr2p()); puts(")");
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}
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virtual void visit(AstRange* nodep) {
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puts("[");
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@@ -471,18 +471,18 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
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puts(cvtToStr(VN_CAST(nodep->leftp(), Const)->toSInt())); puts(":");
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puts(cvtToStr(VN_CAST(nodep->rightp(), Const)->toSInt())); puts("]");
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} else {
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nodep->leftp()->iterateAndNext(*this); puts(":");
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nodep->rightp()->iterateAndNext(*this); puts("]");
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iterateAndNextNull(nodep->leftp()); puts(":");
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iterateAndNextNull(nodep->rightp()); puts("]");
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}
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}
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virtual void visit(AstSel* nodep) {
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nodep->fromp()->iterateAndNext(*this); puts("[");
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iterateAndNextNull(nodep->fromp()); puts("[");
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if (VN_IS(nodep->lsbp(), Const)) {
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if (nodep->widthp()->isOne()) {
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if (VN_IS(nodep->lsbp(), Const)) {
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puts(cvtToStr(VN_CAST(nodep->lsbp(), Const)->toSInt()));
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} else {
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nodep->lsbp()->iterateAndNext(*this);
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iterateAndNextNull(nodep->lsbp());
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}
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} else {
|
||||
puts(cvtToStr(VN_CAST(nodep->lsbp(), Const)->toSInt()
|
||||
@@ -492,44 +492,44 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
|
||||
puts(cvtToStr(VN_CAST(nodep->lsbp(), Const)->toSInt()));
|
||||
}
|
||||
} else {
|
||||
nodep->lsbp()->iterateAndNext(*this); putfs(nodep,"+:");
|
||||
nodep->widthp()->iterateAndNext(*this); puts("]");
|
||||
iterateAndNextNull(nodep->lsbp()); putfs(nodep,"+:");
|
||||
iterateAndNextNull(nodep->widthp()); puts("]");
|
||||
}
|
||||
puts("]");
|
||||
}
|
||||
virtual void visit(AstSliceSel* nodep) {
|
||||
nodep->fromp()->iterateAndNext(*this);
|
||||
iterateAndNextNull(nodep->fromp());
|
||||
puts(cvtToStr(nodep->declRange()));
|
||||
}
|
||||
virtual void visit(AstTypedef* nodep) {
|
||||
putfs(nodep,"typedef ");
|
||||
nodep->dtypep()->iterateAndNext(*this); puts(" ");
|
||||
iterateAndNextNull(nodep->dtypep()); puts(" ");
|
||||
puts(nodep->prettyName());
|
||||
puts(";\n");
|
||||
}
|
||||
virtual void visit(AstBasicDType* nodep) {
|
||||
if (nodep->isSigned()) putfs(nodep,"signed ");
|
||||
putfs(nodep,nodep->prettyName());
|
||||
if (nodep->rangep()) { puts(" "); nodep->rangep()->iterateAndNext(*this); puts(" "); }
|
||||
if (nodep->rangep()) { puts(" "); iterateAndNextNull(nodep->rangep()); puts(" "); }
|
||||
else if (nodep->isRanged()) { puts(" ["); puts(cvtToStr(nodep->msb())); puts(":0] "); }
|
||||
}
|
||||
virtual void visit(AstConstDType* nodep) {
|
||||
putfs(nodep,"const ");
|
||||
nodep->subDTypep()->accept(*this);
|
||||
iterate(nodep->subDTypep());
|
||||
}
|
||||
virtual void visit(AstNodeArrayDType* nodep) {
|
||||
nodep->subDTypep()->accept(*this);
|
||||
nodep->rangep()->iterateAndNext(*this);
|
||||
iterate(nodep->subDTypep());
|
||||
iterateAndNextNull(nodep->rangep());
|
||||
}
|
||||
virtual void visit(AstNodeClassDType* nodep) {
|
||||
puts(nodep->verilogKwd()+" ");
|
||||
if (nodep->packed()) puts("packed ");
|
||||
puts("\n");
|
||||
nodep->membersp()->iterateAndNext(*this);
|
||||
iterateAndNextNull(nodep->membersp());
|
||||
puts("}");
|
||||
}
|
||||
virtual void visit(AstMemberDType* nodep) {
|
||||
nodep->subDTypep()->accept(*this);
|
||||
iterate(nodep->subDTypep());
|
||||
puts(" ");
|
||||
puts(nodep->name());
|
||||
puts("}");
|
||||
@@ -538,11 +538,11 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
|
||||
if (nodep->dotted()!="") { putfs(nodep,nodep->dotted()); puts("."); puts(nodep->prettyName()); }
|
||||
else { putfs(nodep,nodep->prettyName()); }
|
||||
puts("(");
|
||||
nodep->pinsp()->iterateAndNext(*this);
|
||||
iterateAndNextNull(nodep->pinsp());
|
||||
puts(")");
|
||||
}
|
||||
virtual void visit(AstArg* nodep) {
|
||||
nodep->exprp()->iterateAndNext(*this);
|
||||
iterateAndNextNull(nodep->exprp());
|
||||
}
|
||||
// Terminals
|
||||
virtual void visit(AstVarRef* nodep) {
|
||||
@@ -564,21 +564,21 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
|
||||
|
||||
// Just iterate
|
||||
virtual void visit(AstTopScope* nodep) {
|
||||
nodep->iterateChildren(*this);
|
||||
iterateChildren(nodep);
|
||||
}
|
||||
virtual void visit(AstScope* nodep) {
|
||||
nodep->iterateChildren(*this);
|
||||
iterateChildren(nodep);
|
||||
}
|
||||
virtual void visit(AstVar* nodep) {
|
||||
putfs(nodep,nodep->verilogKwd());
|
||||
puts(" ");
|
||||
nodep->dtypep()->iterate(*this); puts(" ");
|
||||
iterate(nodep->dtypep()); puts(" ");
|
||||
puts(nodep->prettyName());
|
||||
puts(";\n");
|
||||
}
|
||||
virtual void visit(AstActive* nodep) {
|
||||
m_sensesp = nodep->sensesp();
|
||||
nodep->stmtsp()->iterateAndNext(*this);
|
||||
iterateAndNextNull(nodep->stmtsp());
|
||||
m_sensesp = NULL;
|
||||
}
|
||||
virtual void visit(AstVarScope*) {}
|
||||
@@ -591,7 +591,7 @@ class EmitVBaseVisitor : public EmitCBaseVisitor {
|
||||
// Default
|
||||
virtual void visit(AstNode* nodep) {
|
||||
puts((string)"\n???? // "+nodep->prettyTypeName()+"\n");
|
||||
nodep->iterateChildren(*this);
|
||||
iterateChildren(nodep);
|
||||
// Not v3fatalSrc so we keep processing
|
||||
nodep->v3error("Internal: Unknown node type reached emitter: "<<nodep->prettyTypeName());
|
||||
}
|
||||
@@ -620,7 +620,7 @@ class EmitVFileVisitor : public EmitVBaseVisitor {
|
||||
public:
|
||||
EmitVFileVisitor(AstNode* nodep, V3OutFile* ofp) {
|
||||
m_ofp = ofp;
|
||||
nodep->accept(*this);
|
||||
iterate(nodep);
|
||||
}
|
||||
virtual ~EmitVFileVisitor() {}
|
||||
};
|
||||
@@ -640,7 +640,7 @@ class EmitVStreamVisitor : public EmitVBaseVisitor {
|
||||
public:
|
||||
EmitVStreamVisitor(AstNode* nodep, std::ostream& os)
|
||||
: m_os(os) {
|
||||
nodep->accept(*this);
|
||||
iterate(nodep);
|
||||
}
|
||||
virtual ~EmitVStreamVisitor() {}
|
||||
};
|
||||
@@ -711,7 +711,7 @@ public:
|
||||
AstSenTree* domainp, bool user3mark)
|
||||
: EmitVBaseVisitor(domainp), m_formatter(os, prefix, flWidth) {
|
||||
if (user3mark) { AstUser3InUse::check(); }
|
||||
nodep->accept(*this);
|
||||
iterate(nodep);
|
||||
}
|
||||
virtual ~EmitVPrefixedVisitor() {}
|
||||
};
|
||||
|
||||
Reference in New Issue
Block a user