gcc/testsuite/gcc.dg/tree-ssa/pr61197.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O3" } */
   3
   4 int a, b = 1, *c = &a;
   5
   6 int
   7 foo ()
   8 {
   9   if (b)
  10     b |= 1;
  11   else
  12     {
  13       b = 1;
  14       return 0;
  15     }
  16   return 1;
  17 }
  18
  19 int
  20 main ()
  21 {
  22   *c = foo ();
  23   if (a != 1)
  24     __builtin_abort ();
  25   return 0;
  26 }