gcc/testsuite/gcc.dg/torture/pr69951.c

   1 /* { dg-do run } */
   2 /* { dg-require-alias "" } */
   3
   4 extern void abort (void);
   5
   6 int a = 1, c = 1;
   7 extern int b __attribute__((alias("a")));
   8 extern int d __attribute__((alias("c")));
   9 int main(int argc)
  10 {
  11   int *p, *q;
  12   if (argc >= 0)
  13     p = &c, q = &d;
  14   else
  15     p = &b, q = &d;
  16   *p = 1;
  17   *q = 2;
  18   if (*p == 1)
  19     abort();
  20   return 0;
  21 }