gcc/testsuite/gcc.dg/torture/pr49651.c

   1 /* { dg-do run } */
   2
   3 extern void abort (void);
   4
   5 struct X {
   6     int *p;
   7     int *q;
   8 };
   9
  10 void __attribute__((noinline, noclone))
  11 foo (struct X x) { *x.q = 0; }
  12
  13 volatile int what;
  14 struct X y;
  15
  16 int main()
  17 {
  18   int i, j;
  19   struct X x, *p;
  20   x.p = &i;
  21   x.q = &j;
  22   if (what)
  23     p = &y;
  24   else
  25     p = &x;
  26   j = 1;
  27   foo (*p);
  28   if (j != 0)
  29     abort ();
  30   return 0;
  31 }