gcc/testsuite/gcc.dg/tree-ssa/pr23192.c

   1 /* { dg-options "-O2" } */
   2 /* { dg-do run } */
   3
   4 struct S { int i; } s;
   5
   6 void f (struct S *q)
   7 {
   8   int a, *p;
   9   p = &a;
  10   if (q)
  11     p = &q->i;
  12   *p = 1;
  13 }
  14
  15 void abort (void);
  16
  17 int main (void)
  18 {
  19   f (&s);
  20   if (s.i != 1)
  21     abort ();
  22   return 0;
  23 }