gcc/testsuite/gcc.dg/loop-2.c

   1 /* PR optimization/10171 */
   2 /* Bug: unroll_loop misoptimized the function so that we got
   3    0 iterations of the loop rather than the correct 1.  */
   4 /* { dg-do run } */
   5
   6 __inline__ int tag() { return 0; }
   7
   8 void f ();
   9
  10 int main() {
  11   int i;
  12   for (i = 0; i < (tag() ? 2 : 1); i++)
  13     f();
  14   abort ();
  15 }
  16
  17 void f ()
  18 {
  19   exit (0);
  20 }