1  /* { dg-do compile } */
       2  /* { dg-options "-w -fdump-tree-gimple" } */
       3  
       4  /* Things that should not be folded.  */
       5  
       6  struct { long base; int tail; void * volatile ptr; } *s;
       7  int foo3 (void) { return s == &s; }
       8  int foo5 (void) { return s->ptr == s->ptr; }
       9  
      10  struct { union { int i; short s } u; } x;
      11  int foo6 (void) { return x.u.i == x.u.s; }
      12  
      13  void **p;
      14  int foo8 (void) { return p == &p; }
      15  int foo9 (void) { return *p == p; }
      16  int foo10 (void) { return *p == &p; }
      17  int foo11 (void) { return p != &p; }
      18  int foo12 (void) { return *p != p; }
      19  int foo13 (void) { return *p != &p; }
      20  
      21  /* { dg-final { scan-tree-dump-not "= 0;" "gimple" } } */
      22  /* { dg-final { scan-tree-dump-not "= 1;" "gimple" } } */