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/* PR rtl-optimization/27616 */
/* Reported by Lee Ji Hwan <moonz@kaist.ac.kr> */
/* Testcase by Andrew Pinski <pinskia@gcc.gnu.org> */
 
struct chunk_s
{
  unsigned int size;
  int offset_next;
};
 
typedef struct chunk_s chunk_t;
 
void foo(chunk_t *first)
{
  chunk_t *cur;
  char *first0;
 
  do {
    first0 = (char *) first;
    cur = (chunk_t *) (first0 + first->offset_next);
    if ((chunk_t *) (first0 + cur->offset_next) != first)
      return ;
 
    first->offset_next = 0;
 
  } while (cur->size != 0);
}