gcc/testsuite/gcc.dg/torture/pr59374-3.c

   1 extern void abort (void);
   2
   3 static struct X { void *a; void *b; } a, b;
   4
   5 void __attribute__((noinline)) foo (void)
   6 {
   7   void *tem = a.b;
   8   a.b = (void *)0;
   9   b.b = tem;
  10   b.a = a.a;
  11   a.a = tem;
  12 }
  13
  14 int main()
  15 {
  16   a.b = &a;
  17   foo ();
  18   if (b.b != &a)
  19     abort ();
  20   return 0;
  21 }