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

[pa...@matos-sorge.com]

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



--- Comment #1 from Paulo J. Matos <pa...@matos-sorge.com> 2012-12-20 15:53:48 
UTC ---

This happens for the negate_expr case too in the same switch. 



I have a patch to fix this that I will upload momentarily.