[Bug target/48085] [x32] Unnecessary zero-extension

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48085

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2011-03-19 15:03:05 
UTC ---
The existing testcase is gcc.target/i386/pr32661-1.c.