gcc/testsuite/gcc.dg/tree-ssa/pr68619-3.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -w" } */
   3 typedef unsigned int hashval_t;
   4 enum ETYPE
   5 {
   6   ETYPE_ARRAY, ETYPE_STRUCT, ETYPE_UNION,
   7 };
   8 struct entry
   9 {
  10   enum ETYPE etype:8;
  11   unsigned short len;
  12   const char *attrib;
  13 };
  14 hashval_t iterative_hash (const struct entry *, __SIZE_TYPE__, hashval_t);
  15 hashval_t
  16 e_hash (const void *a)
  17 {
  18   const struct entry *e = a;
  19   hashval_t ret = 0;
  20   int i;
  21   if (e[0].etype != ETYPE_STRUCT && e[0].etype != ETYPE_UNION)
  22     __builtin_abort ();
  23   for (i = 0; i <= e[0].len; ++i)
  24     {
  25       ret = iterative_hash (&e[i], __builtin_offsetof (struct entry, attrib), ret);
  26     }
  27   return ret;
  28 }