gcc/testsuite/gcc.dg/torture/pr73434.c

   1 /* { dg-do run } */
   2
   3 typedef struct { unsigned char x; } A;
   4 typedef struct { unsigned char x; } B;
   5
   6 int idx = 0;
   7
   8 A objs[1] = {{0}};
   9
  10 int main()
  11 {
  12   B *b = (B*)&objs[idx];
  13   b->x++;
  14   if (b->x)
  15     b->x = 0;
  16   if (b->x)
  17     __builtin_abort ();
  18   return 0;
  19 }