[Bug target/51390] New: Builtin changes on November 29th, broke recip-5.c

["meissner at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51390

             Bug #: 51390
           Summary: Builtin changes on November 29th, broke recip-5.c
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: meissner@gcc.gnu.org
        ReportedBy: meissner@gcc.gnu.org
              Host: powerpc64-linux power-linux
            Target: powerpc64-linux
             Build: powerpc64-linux


After my builtin changes went in on November 29th, 2011, the test
gcc.target/powerpc/recip-5.c started failing.  This was due to a thinko on my
part where I used the wrong structure field to figure out the appropriate
attributes for the builtin function, and the recipdiv builtin function was not
listed as a const function with -ffast-math, which would allow the vectorizer
to vectorize the function.