gcc/testsuite/gcc.c-torture/execute/20050613-1.c

   1 /* PR tree-optimization/22043 */
   2
   3 extern void abort (void);
   4
   5 struct A { int i; int j; int k; int l; };
   6 struct B { struct A a; int r[1]; };
   7 struct C { struct A a; int r[0]; };
   8 struct D { struct A a; int r[]; };
   9
  10 void
  11 foo (struct A *x)
  12 {
  13   if (x->i != 0 || x->j != 5 || x->k != 0 || x->l != 0)
  14     abort ();
  15 }
  16
  17 int
  18 main ()
  19 {
  20   struct B b = { .a.j = 5 };
  21   struct C c = { .a.j = 5 };
  22   struct D d = { .a.j = 5 };
  23   foo (&b.a);
  24   foo (&c.a);
  25   foo (&d.a);
  26   return 0;
  27 }