gcc/testsuite/gcc.c-torture/execute/pr70566.c

   1 /* PR target/70566.  */
   2
   3 #define NULL 0
   4
   5 struct mystruct
   6 {
   7   unsigned int f1 : 1;
   8   unsigned int f2 : 1;
   9   unsigned int f3 : 1;
  10 };
  11
  12 __attribute__ ((noinline)) void
  13 myfunc (int a, void *b)
  14 {
  15 }
  16 __attribute__ ((noinline)) int
  17 myfunc2 (void *a)
  18 {
  19   return 0;
  20 }
  21
  22 static void
  23 set_f2 (struct mystruct *user, int f2)
  24 {
  25   if (user->f2 != f2)
  26     myfunc (myfunc2 (NULL), NULL);
  27   else
  28     __builtin_abort ();
  29 }
  30
  31 __attribute__ ((noinline)) void
  32 foo (void *data)
  33 {
  34   struct mystruct *user = data;
  35   if (!user->f2)
  36     set_f2 (user, 1);
  37 }
  38
  39 int
  40 main (void)
  41 {
  42   struct mystruct a;
  43   a.f1 = 1;
  44   a.f2 = 0;
  45   foo (&a);
  46   return 0;
  47 }