[Bug target/50176] [4.6/4.7 Regression] 4.7 generates spill-fill dealing with char->int conversion

[hjl.tools at gmail dot com]

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

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2011-08-24 18:09:44 
UTC ---
Is this only a 4.7 regression?