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/* PRs target/15569, rtl-optimization/15681 */
/* { dg-do compile } */
/* { dg-options "-Os -frename-registers" } */
/* { dg-options "-mconstant-gp -Os -frename-registers" { target ia64-*-* } } */
struct S { struct S *a, *b; };
struct T { struct S e; unsigned long a; int b, c; void *d; } f;
unsigned long f1 (unsigned long);
void f2 (int, struct T *);
void *f3 (void *);
unsigned long volatile g;
static void
f4 (struct T *p)
{
f1 (f1 (((unsigned long) g - p->a) >> 20));
}
static struct T *
f5 (void)
{
struct T *g, *p;
struct T *q = 0;
for (g = p = &f; (g = p = (struct T *) (g->e.a)) != &f;)
if (p->b)
{
f4 (p);
if (p->c & 0x80000)
return p;
}
return q;
}
static void
f6 (struct T *p)
{
f2 (9, p);
}
static inline void *
f7 (struct T *t)
{
void *d;
d = t->d;
if (d)
d = f3 (d);
return d;
}
static void *
f8 (struct T *p)
{
void *d = f7 (p);
if (!d)
return 0;
f6 (p);
return d;
}
static void
f9 (void)
{
struct T *p;
p = f5 ();
f8 (p);
}
void
test (void)
{
f9 ();
}
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