+ e = e2;
+ c2 = constraintExpr_makeValueExpr (e);
+
+ ret = constraint_makeEnsuresOpConstraintExpr (c1, c2, sequencePoint, ar);
+
+ return ret;
+}
+
+
+/* make constraint ensures e1 == e2 */
+
+constraint constraint_makeEnsureEqual (exprNode e1, exprNode e2, fileloc sequencePoint)
+{
+ return ( constraint_makeEnsuresOp (e1, e2, sequencePoint, EQ));
+}
+
+/*make constraint ensures e1 < e2 */
+constraint constraint_makeEnsureLessThan (exprNode e1, exprNode e2, fileloc sequencePoint)
+{
+ constraintExpr t1, t2;
+ constraint t3;
+
+ t1 = constraintExpr_makeValueExpr (e1);
+ t2 = constraintExpr_makeValueExpr (e2);
+
+ /*change this to e1 <= (e2 -1) */
+
+ t2 = constraintExpr_makeDecConstraintExpr (t2);
+
+ t3 = constraint_makeEnsuresOpConstraintExpr (t1, t2, sequencePoint, LTE);
+
+ t3 = constraint_simplify(t3);
+ return (t3);
+}
+
+constraint constraint_makeEnsureLessThanEqual (exprNode e1, exprNode e2, fileloc sequencePoint)
+{
+ return ( constraint_makeEnsuresOp (e1, e2, sequencePoint, LTE));
+}
+
+constraint constraint_makeEnsureGreaterThan (exprNode e1, exprNode e2, fileloc sequencePoint)
+{
+ constraintExpr t1, t2;
+ constraint t3;
+
+ t1 = constraintExpr_makeValueExpr (e1);
+ t2 = constraintExpr_makeValueExpr (e2);
+
+
+ /* change this to e1 >= (e2 + 1) */
+ t2 = constraintExpr_makeIncConstraintExpr (t2);
+
+ t3 = constraint_makeEnsuresOpConstraintExpr (t1, t2, sequencePoint, GTE);
+
+ t3 = constraint_simplify(t3);
+
+ return t3;
+}
+
+constraint constraint_makeEnsureGreaterThanEqual (exprNode e1, exprNode e2, fileloc sequencePoint)
+{
+ return ( constraint_makeEnsuresOp (e1, e2, sequencePoint, GTE));
+}
+
+
+exprNode exprNode_copyConstraints (/*@returned@*/ exprNode dst, exprNode src)
+{
+ constraintList_free (dst->ensuresConstraints);
+ constraintList_free (dst->requiresConstraints);
+ constraintList_free (dst->trueEnsuresConstraints);
+ constraintList_free (dst->falseEnsuresConstraints);
+
+ dst->ensuresConstraints = constraintList_copy (src->ensuresConstraints);
+ dst->requiresConstraints = constraintList_copy (src->requiresConstraints);
+ dst->trueEnsuresConstraints = constraintList_copy (src->trueEnsuresConstraints);
+ dst->falseEnsuresConstraints = constraintList_copy (src->falseEnsuresConstraints);
+ return dst;
+}
+
+/* Makes the constraint e = e + f */
+constraint constraint_makeAddAssign (exprNode e, exprNode f, fileloc sequencePoint)
+{
+ constraintExpr x1, x2, y;
+ constraint ret;
+
+ ret = constraint_makeNew ();
+
+ x1 = constraintExpr_makeValueExpr (e);
+ x2 = constraintExpr_copy (x1);
+ y = constraintExpr_makeValueExpr (f);
+
+ ret->lexpr = x1;
+ ret->ar = EQ;
+ ret->post = TRUE;
+ ret->expr = constraintExpr_makeAddExpr (x2, y);
+
+ ret->lexpr = constraintExpr_setFileloc (ret->lexpr, sequencePoint);
+
+ return ret;
+}
+
+
+/* Makes the constraint e = e - f */
+constraint constraint_makeSubtractAssign (exprNode e, exprNode f, fileloc sequencePoint)
+{
+ constraintExpr x1, x2, y;
+ constraint ret;
+
+ ret = constraint_makeNew ();
+
+ x1 = constraintExpr_makeValueExpr (e);
+ x2 = constraintExpr_copy (x1);
+ y = constraintExpr_makeValueExpr (f);
+
+ ret->lexpr = x1;
+ ret->ar = EQ;
+ ret->post = TRUE;
+ ret->expr = constraintExpr_makeSubtractExpr (x2, y);
+
+ ret->lexpr = constraintExpr_setFileloc (ret->lexpr, sequencePoint);