gcc/testsuite/gcc.c-torture/compile/20060904-1.c

   1 /* PR rtl-optimization/27616 */
   2 /* Reported by Lee Ji Hwan <moonz@kaist.ac.kr> */
   3 /* Testcase by Andrew Pinski <pinskia@gcc.gnu.org> */
   4
   5 struct chunk_s
   6 {
   7   unsigned int size;
   8   int offset_next;
   9 };
  10
  11 typedef struct chunk_s chunk_t;
  12
  13 void foo(chunk_t *first)
  14 {
  15   chunk_t *cur;
  16   char *first0;
  17
  18   do {
  19     first0 = (char *) first;
  20     cur = (chunk_t *) (first0 + first->offset_next);
  21     if ((chunk_t *) (first0 + cur->offset_next) != first)
  22       return ;
  23
  24     first->offset_next = 0;
  25
  26   } while (cur->size != 0);
  27 }