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/* { dg-do compile } */

/* { dg-options "-w -fdump-tree-gimple" } */

/* Things that should be folded.  */

struct { long base; int tail; void * volatile ptr; } *s;

int foo1a (void) { return (s == &s->base); }

int foo1b (void) { return (&s->base == s); }

int foo2 (void) { return ((void *)s == (void *) &s->base); }

int foo4 (void) { return s->base == s->base; }

int foo5 (void) { return &s->ptr == &s->ptr; }

int foo6 (void) { return &s->ptr != &s->ptr; }

int foo7 (void) { return &s->base != &s->ptr; }

struct { union { int i; short s } u; } x;

int foo8 (void) { return &x.u.i == &x.u.s; }

/* { dg-final { scan-tree-dump-times "= 0" 1 "gimple" } } */

/* { dg-final { scan-tree-dump-times "= 1" 7 "gimple" } } */

/* { dg-final { cleanup-tree-dump "gimple" } } */