[PATCH][4.1] Fix PR33142, wrong-code with VRP

[Andrew Pinski]

On 9/9/07, Richard Guenther <rguenther@suse.de> wrote:
> Probably, as the above doesn't contain an unary expression for
> which I changed behavior.  Can you open a PR for this please?

Actually libjava has undefined code in it.  It depends on signed
integer overflow being defined as wrapping.
See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31842

So backporting that patch should fix the issue too.

-- Pinski