Internals: Prep for V3Slice rewrite. No functional change intended.

src/V3Ast.h

@@ -1458,6 +1458,7 @@ public:
     virtual bool sizeMattersLhs() { return false; } virtual bool sizeMattersRhs() { return false; }
     virtual bool sizeMattersThs() { return false; }
     virtual int instrCount()	const { return instrCountBranch(); }
+    virtual AstNode* cloneType(AstNode* condp, AstNode* expr1p, AstNode* expr2p) = 0;
 };
 
 class AstNodePreSel : public AstNode {

src/V3AstNodes.h

@@ -2183,6 +2183,8 @@ public:
     AstCond(FileLine* fl, AstNode* condp, AstNode* expr1p, AstNode* expr2p)
 	: AstNodeCond(fl, condp, expr1p, expr2p) {}
     ASTNODE_NODE_FUNCS(Cond)
+    virtual AstNode* cloneType(AstNode* condp, AstNode* expr1p, AstNode* expr2p) {
+	return new AstCond(this->fileline(), condp, expr1p, expr2p); }
 };
 
 class AstCondBound : public AstNodeCond {
@@ -2193,6 +2195,8 @@ public:
     AstCondBound(FileLine* fl, AstNode* condp, AstNode* expr1p, AstNode* expr2p)
 	: AstNodeCond(fl, condp, expr1p, expr2p) {}
     ASTNODE_NODE_FUNCS(CondBound)
+    virtual AstNode* cloneType(AstNode* condp, AstNode* expr1p, AstNode* expr2p) {
+	return new AstCondBound(this->fileline(), condp, expr1p, expr2p); }
 };
 
 class AstCoverDecl : public AstNodeStmt {

src/V3Delayed.cpp

@@ -195,7 +195,7 @@ private:
 	    arrayselp = lhsp->castArraySel();
 	}
 	if (!arrayselp) nodep->v3fatalSrc("No arraysel under bitsel?");
-	if (arrayselp->length()!=1) nodep->v3fatalSrc("ArraySel with length!=1 should have been removed in V3Slice");
+	if (arrayselp->dtypep()->skipRefp()->castUnpackArrayDType()) nodep->v3fatalSrc("ArraySel with unpacked arrays should have been removed in V3Slice");
 
 	UINFO(4,"AssignDlyArray: "<<nodep<<endl);
 	//

src/V3Expand.cpp

@@ -243,7 +243,7 @@ private:
     }
     bool expandWide (AstNodeAssign* nodep, AstArraySel* rhsp) {
 	UINFO(8,"    Wordize ASSIGN(ARRAYSEL) "<<nodep<<endl);
-	if (rhsp->length()!=1) nodep->v3fatalSrc("ArraySel with length!=1 should have been removed in V3Slice");
+	if (nodep->dtypep()->skipRefp()->castUnpackArrayDType()) nodep->v3fatalSrc("ArraySel with unpacked arrays should have been removed in V3Slice");
 	for (int w=0; w<nodep->widthWords(); w++) {
 	    addWordAssign(nodep, w, newAstWordSelClone (rhsp, w));
 	}