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/* { dg-do assemble } */
/* { dg-options "-O2 -flto -flto-partition=one -fdump-tree-evrp -std=gnu89" } */
/* { dg-require-effective-target lto } */
typedef struct rtx_def *rtx;
typedef struct cselib_val_struct
{
union
{
} u;
struct elt_loc_list *locs;
}
cselib_val;
struct elt_loc_list
{
struct elt_loc_list *next;
rtx loc;
};
static int n_useless_values;
unchain_one_elt_loc_list (pl)
struct elt_loc_list **pl;
{
struct elt_loc_list *l = *pl;
*pl = l->next;
}
discard_useless_locs (x, info)
void **x;
{
cselib_val *v = (cselib_val *) * x;
struct elt_loc_list **p = &v->locs;
int had_locs = v->locs != 0;
while (*p)
{
unchain_one_elt_loc_list (p);
p = &(*p)->next;
}
if (had_locs && v->locs == 0)
{
n_useless_values++;
}
}
/* { dg-final { scan-tree-dump-times "n_useless_values" 2 "evrp" { xfail *-*-* } } } */
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