[Bug target/20020] x86_64 - 128 bit structs not targeted to TImode

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20020

--- Comment #43 from H.J. Lu <hjl.tools at gmail dot com> 2012-08-15 14:21:05 
UTC ---
The problem is we return a TI union in XF register
because the x86-64 psABI.