Subversion Repositories openrisc

/* PR45070 */

extern void abort(void);

struct packed_ushort {

    unsigned short ucs;

} __attribute__((packed));

struct source {

    int pos, length;

    int flag;

};

static void __attribute__((noinline)) fetch(struct source *p)

{

    p->length = 128;

}

static struct packed_ushort __attribute__((noinline)) next(struct source *p)

{

    struct packed_ushort rv;

    if (p->pos >= p->length) {

        if (p->flag) {

            p->flag = 0;

            fetch(p);

            return next(p);

        }

        p->flag = 1;

        rv.ucs = 0xffff;

        return rv;

    }

    rv.ucs = 0;

    return rv;

}

int main(void)

{

    struct source s;

    int i;

    s.pos = 0;

    s.length = 0;

    s.flag = 0;

    for (i = 0; i < 16; i++) {

        struct packed_ushort rv = next(&s);

        if ((i == 0 && rv.ucs != 0xffff)

            || (i > 0 && rv.ucs != 0))

            abort();

    }

    return 0;

}