gcc/testsuite/gcc.dg/tree-ssa/alias-13.c

   1 /* { dg-do link } */
   2 /* { dg-options "-O2" } */
   3
   4 void link_failure (void);
   5
   6 struct a
   7 {
   8   char a1;
   9 };
  10
  11 int *aa;
  12
  13 void g(int *a)
  14 {
  15   aa = a;
  16   *a = 2;
  17 }
  18
  19 int t(int i, struct a *b)
  20 {
  21   g(&i);
  22   b->a1 = 1;
  23   i = 2;
  24   if (b->a1 != 1)
  25     link_failure ();
  26 }
  27 int main(void)
  28 {
  29   struct a b;
  30   t(1, &b);
  31   return 0;
  32 }
  33
  34