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/* { dg-do compile } */
/* { dg-options "-O -fdump-tree-fre" } */
struct a
{
union
{
int a;
int b;
};
union
{
int c;
int d;
};
int e;
};
int f(struct a *c)
{
int d;
c->e = 2;
d = c->a;
c->c = 1;
return c->a + d;
}
/* We should have CSEd the load from c->a. */
/* { dg-final { scan-tree-dump-times "c_.*\\\.a" 1 "fre" } } */
/* { dg-final { cleanup-tree-dump "fre" } } */
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