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

[izamyatin at gmail dot com]

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

--- Comment #5 from Igor Zamyatin <izamyatin at gmail dot com> 2011-08-29 
11:48:12 UTC ---
Yes, looks like this revision is the reason