modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/20060904-1.c (about)

     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  }