[PATCH]: Constant fold comparisons against UINT_MAX

[Roger Sayle]

http://gcc.gnu.org/ml/gcc-patches/2002-01/msg01468.html

> > * fold-const.c (fold): Optimize unsigned comparisons against
> > UINT_MAX (and similar unsigned constants). Fixes PR opt/3640.
>
> Ok.

Could someone please apply this for me as I don't have write access
to CVS, and the helpful soul who I usually ask is travelling at the
moment.  Many thanks in advance.

Roger
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