[Bug tree-optimization/55761] process_assignment assumes -1 can be created

[paulo@matos-sorge.com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55761

--- Comment #11 from Paulo J. Matos <paulo@matos-sorge.com> ---
No worries Marc, that's fine. The most important thing is that's fixed. I did
post the patch to patches@ but haven't actually pinged. I tend to forget about
them myself.

Thanks for sorting it out.