[tree-ssa] Unused variable warnings

[Jan Hubicka]

> In message <20031019075227.GS15904@atrey.karlin.mff.cuni.cz>, Jan Hubicka write
>  >> If there's really a path were index is uninitialized, then clearly we
>  >> want to initialize it to a safe value, both for the branch and the
>  >> mainline.
>  >
>  >Yes, however the path is created by inlining function max_issue and
>  >optimizing out & and *.  So whether we realize this condition or not
>  >depend on how much inlining we do that is somewhat ugly.
> OK.
> 
> 
>  >The path never actually happens in reality (max_issue either finds value
>  >and sets it or indicate failure), but we are not smart enought to thread
>  >the jumps.
> OK.  These certain do happen :(
> 
> Let's get this fixed on the mainline.  No sense in diverging this code.
OK, thanks.
there is yet another occurence that crept in with Zdenek's tail
recursion patch, I will fix this one as well.

Honza
> 
> Jeff
>