1: /* { dg-do compile } */
    2: /* { dg-options "-Os" } */
    3: 
    4: struct list_head {
    5:  struct list_head *next;
    6: };


guest: gcc/4.2.2/gcc/testsuite/gcc.dg/tree-ssa/pr25734.c:4-6 on Wed Jan 16 12:39:16 +0900 2008


単方向リストの宣言


    7: static inline __attribute__((always_inline)) void list_del_init(struct
    8: list_head *entry)
    9: {
   10:  __list_del(entry->next);
   11:  (entry)->next = (entry);
   12: };
   13: struct dentry {
   14:  void *d_fsdata;
   15: };
   16: struct sysfs_dirent {
   17:  struct list_head s_sibling;
   18:  struct list_head s_children;
   19: };
   20: const char *sysfs_get_name(struct sysfs_dirent *);
   21: void sysfs_hash_and_remove(struct dentry * dir, const char * name)
   22: {
   23:  struct sysfs_dirent * sd;
   24:  struct sysfs_dirent * parent_sd = dir->d_fsdata;
   25:  for (sd = (struct sysfs_dirent *)((&parent_sd->s_children)->next);
   26:      &sd->s_sibling != (&parent_sd->s_children);
   27:      sd  = (struct sysfs_dirent *)sd->s_sibling.next) {
   28:   if (!__builtin_strcmp(sysfs_get_name(sd), name))
   29:   {
   30:    list_del_init(&sd->s_sibling);
   31:    break;
   32:   }
   33:  }


guest: gcc/4.2.2/gcc/testsuite/gcc.dg/tree-ssa/pr25734.c:23-33 on Thu Jan 10 10:32:13 +0900 2008


In this part,tree stlucture is used.


   34: }