Merging r143290:
    ------------------------------------------------------------------------
    r143290 | d0k | 2011-10-29 12:43:38 -0700 (Sat, 29 Oct 2011) | 3 lines
    
    PPC: Disable moves for all CR subregisters.
    
    Should fix assertion failures on ppc buildbots.
    ------------------------------------------------------------------------
    
    llvm-svn: 143451