[PATCH] [MIPS] Add -march=octeon+ support for GCC

[Andrew Pinski]

Hi,
  This patch adds -march=octeon+ to GCC.
OK? Bootstrapped and tested on mips64-linux-gnu configured with
--with-arch=octeon+ .

Thanks,
Andrew Pinski

gcc/ChangeLog:
* mips/mips-cpus.def (octeon+): New CPU.
* config/mips/mips-tables.opt: Regenerate.
* config/mips/mips.h (MIPS_CPP_SET_PROCESSOR): Emit '+' as 'P'.

testsuite/ChangeLog:
* gcc.target/mips/mult-1.c: Forbit all Octeon processors.
* gcc.target/mips/dmult-1.c: Likewise.
* gcc.target/mips/branch-1.c: Likewise.
* gcc.target/mips/extend-1.c: Likewise.