Subversion Repositories openrisc

/* PR middle-end/13400 */

/* The following test used to fail at run-time with a write to read-only

   memory, caused by if-conversion converting a conditional write into an

   unconditional write.  */

typedef struct {int c, l; char ch[3];} pstr;

const pstr ao = {2, 2, "OK"};

const pstr * const a = &ao;

void test1(void)

{

    if (a->ch[a->l]) {

        ((char *)a->ch)[a->l] = 0;

    }

}

void test2(void)

{

    if (a->ch[a->l]) {

        ((char *)a->ch)[a->l] = -1;

    }

}

void test3(void)

{

    if (a->ch[a->l]) {

        ((char *)a->ch)[a->l] = 1;

    }

}

int main(void)

{

    test1();

    test2();

    test3();

    return 0;

}