[Bug rtl-optimization/50176] [4.7/4.8 Regression] 4.7 generates spill-fill dealing with char->int conversion

[law at redhat dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50176

--- Comment #22 from Jeffrey A. Law <law at redhat dot com> 2013-01-20 06:16:21 UTC ---
I must have been looking at something else; the 4.6 and trunk loops are
effectively the same, so this is no longer a regression.

We might will want the fwprop patch, so I've attached this to the 4.9 pending
patches meta bug.