error found in get_ivts_expr() function.

[Uttam Pawar]

Hi All,

I found following code snippet in file, trunk/gcc/loop-unroll.c

   1814 /* Locate in EXPR the expression corresponding to the location recorded
   1815    in IVTS, and return a pointer to the RTX for this location.  */
   1816
   1817 static rtx *
   1818 get_ivts_expr (rtx expr, struct iv_to_split *ivts)
   1819 {
   1820   unsigned i;
   1821   rtx *ret = &expr;
   1822
   1823   for (i = 0; i < ivts->n_loc; i++)
   1824     ret = &XEXP (*ret, ivts->loc[i]);
   1825
   1826   return ret;
   1827 }

at line 1821, what is the point of taking address of a stack variable? and 
returning it, if the 
'condition' in for loop fails. Is this done intentionally or is it an error?

Thanks,

Uttam