#define DEBUG_EXPR 0
-static int expr_eq(struct expr *e1, struct expr *e2);
static struct expr *expr_eliminate_yn(struct expr *e);
struct expr *expr_alloc_symbol(struct symbol *sym)
* equals some operand in the other (operands do not need to appear in the same
* order), recursively.
*/
-static int expr_eq(struct expr *e1, struct expr *e2)
+int expr_eq(struct expr *e1, struct expr *e2)
{
int res, old_count;