gcc/testsuite/gcc.dg/tree-ssa/alias-14.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2" } */
   3
   4 struct s
   5 {
   6   long long a:12;
   7   long long b:12;
   8   long long c:40;
   9 };
  10
  11 struct s s, *p = &s;
  12
  13 int
  14 main ()
  15 {
  16   p->a = 1;
  17   s.a = 0;
  18   s.b = 0;
  19   return p->a + s.b;
  20 }