1  /* { dg-do compile } */
       2  /* { dg-options "-w -fdump-tree-gimple" } */
       3  
       4  /* Things that should be folded.  */
       5  
       6  struct { long base; int tail; void * volatile ptr; } *s;
       7  int foo1a (void) { return (s == &s->base); }
       8  int foo1b (void) { return (&s->base == s); }
       9  int foo2 (void) { return ((void *)s == (void *) &s->base); }
      10  int foo4 (void) { return s->base == s->base; }
      11  int foo5 (void) { return &s->ptr == &s->ptr; }
      12  int foo6 (void) { return &s->ptr != &s->ptr; }
      13  int foo7 (void) { return &s->base != &s->ptr; }
      14  
      15  struct { union { int i; short s } u; } x;
      16  int foo8 (void) { return &x.u.i == &x.u.s; }
      17  
      18  /* { dg-final { scan-tree-dump-times "= 0" 1 "gimple" } } */
      19  /* { dg-final { scan-tree-dump-times "= 1" 7 "gimple" } } */