ivl: Array querying functions ($left, $low, etc.) for localparams.

eval_tree.cc

@@ -2009,6 +2009,12 @@ static bool check_dimension(const NetExpr*dim_expr, long &dim)
 static bool get_array_info(const NetExpr*arg, long dim,
                            long &left, long &right, bool&defer)
 {
+      if (const NetEConstParam*param = dynamic_cast<const NetEConstParam*>(arg)) {
+	assert(dim == 1);
+	left = param->expr_width() - 1;
+	right = 0;
+	return false;
+      }
 	/* The argument must be a signal that has enough dimensions. */
       const NetESignal*esig = dynamic_cast<const NetESignal*>(arg);
       if (esig == 0) return true;