[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: unassig...@gcc.gnu.org

        ReportedBy: hjl.to...@gmail.com





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