[Bug target/54785] New: -mprefer-avx128 is undocumented

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54785

             Bug #: 54785
           Summary: -mprefer-avx128 is undocumented
    Classification: Unclassified
           Product: gcc
           Version: 4.7.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hjl.tools@gmail.com


-mprefer-avx128 is added to GCC 4.7, but isn't documented.