gcc/testsuite/gcc.dg/lto/20090812_1.c

   1 /* struct X is complete in this TU, this causes us to not merge Y and
   2    thus assign different alias-sets to them.  */
   3 struct X
   4 {
   5   int i;
   6 };
   7 struct Y
   8 {
   9   struct X *p;
  10   int i;
  11 };
  12 extern void abort (void);
  13 extern void foo(struct Y *);
  14 int __attribute__((noinline)) bar(struct Y *p)
  15 {
  16   p->i = 0;
  17   foo (p);
  18   return p->i;
  19 }
  20 int main()
  21 {
  22   struct Y y;
  23   if (bar (&y) != 1)
  24     abort ();
  25   return 0;
  26 }