gcc/testsuite/gcc.c-torture/execute/alias-4.c

   1 /* { dg-require-alias "" } */
   2 int a = 1;
   3 extern int b __attribute__ ((alias ("a")));
   4 int c = 1;
   5 extern int d __attribute__ ((alias ("c")));
   6 int
   7 main (int argc)
   8 {
   9   int *p;
  10   int *q;
  11   if (argc)
  12     p = &a, q = &b;
  13   else
  14     p = &c, q = &d;
  15   *p = 1;
  16   *q = 2;
  17   if (*p == 1)
  18     __builtin_abort ();
  19   return 0;
  20 }