[PATCH] Fix PR23471

[Marc Glisse]

On Thu, 31 Mar 2016, Hurugalawadi, Naveen wrote:

> Please find attached the patch that fixes the tree optimization 23471.
>
> Please review the patch and let me know if its okay?
>
> Regression tested on X86_64.
>
> Thanks,
> Naveen
>
> 2016-03-31  Naveen H.S  <Naveen.Hurugalawadi@caviumnetworks.com>
>
>        * fold-const.c (tree_binary_nonnegative_warnv_p) : Handle the case
>        a * a; where it should be positive always.
>
>        * gcc.dg/pr23471.c: New testcase.

Er, the code just below your patch should already handle this case, no?

-- 
Marc Glisse