[Bug target/49798] .quad instead of .long is used for address for x32

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49798

--- Comment #14 from H.J. Lu <hjl.tools at gmail dot com> 2011-07-21 17:19:06 UTC ---
It looks like (symbol_ref:DI ("xxxx")) is treated as zero_extend
for symbol address.  My patch just does that, similar to Sparc.