gcc/testsuite/gcc.dg/torture/pr57303.c

   1 /* { dg-do run } */
   2
   3 void abort (void);
   4
   5 struct S0
   6 {
   7   int f0;
   8 };
   9 struct S1
  10 {
  11   struct S0 f0;
  12 };
  13
  14 struct S1 x = { {0} };
  15 struct S1 y = { {1} };
  16
  17 static void
  18 foo (struct S0 p)
  19 {
  20   struct S0 *l = &y.f0;
  21   *l = x.f0;
  22   if (p.f0)
  23     *l = *l;
  24 }
  25
  26 int
  27 main ()
  28 {
  29   foo(y.f0);
  30   if (y.f0.f0 != 0)
  31     abort ();
  32   return 0;
  33 }