gcc/testsuite/gcc.c-torture/compile/pr26840.c

   1 extern int f1 (void **);
   2 extern void f2 (void *);
   3
   4 struct s
   5 {
   6   unsigned char field1;
   7   int field2;
   8 };
   9
  10 static inline struct s *
  11 get_globals (void)
  12 {
  13   struct s * r;
  14   void * rr;
  15
  16   if (f1 (&rr))
  17     return 0;
  18   r = rr;
  19   if (! r)
  20     {
  21       extern struct s t;
  22       r = &t;
  23     }
  24   r->field1 = 1;
  25   return r;
  26 }
  27
  28 void
  29 atexit_common (const void *dso)
  30 {
  31   struct s *g = get_globals ();
  32
  33   if (! g)
  34     return;
  35   if (g->field1)
  36     {
  37       g->field2 = 0;
  38       f2 (g);
  39     }
  40   else
  41     f2 (g);
  42 }