[PATCH] Fix PR21082 for C++

[Roger Sayle]

On Sat, 23 Apr 2005, Richard Guenther wrote:
> 2005-04-23  Richard Guenther  <rguenth@gcc.gnu.org>
>
>	* fold-const.c: Fold &a[i]-&a[j] to i-j.
>
>	* g++.dg/tree-ssa/pr21082.C: New testcase.


This is OK for mainline.

Thanks,

Roger
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