Hi,

>> Patches adding new -march= values need to update invoke.texi.

Thanks for reviewing the patch and suggestion.
Please find attached the modified patch which updates octeon3
in invoke.texi
Please review the patch and let us know if there should be any
further modifications.

Thanks,

2014-10-08  Andrew Pinski  <apinski@cavium.com>

    * config/mips/mips-cpus.def (octeon3): New cpu.
    * config/mips/mips.c (mips_rtx_cost_data): Add octeon3.
    (mips_print_operand <case 'T', case 't'>): Fix a bug as the mode
    of the comparison no longer matches mode of the operands.
    (mips_issue_rate): Handle PROCESSOR_OCTEON3.
    * config/mips/mips.h (TARGET_OCTEON):  Add Octeon3.
    (TARGET_OCTEON2): Likewise.
    (TUNE_OCTEON): Add Octeon3.
    * config/mips/mips.md (processor): Add octeon3.
    * config/mips/octeon.md (octeon_fpu): New automaton and cpu_unit.
    (octeon_arith): Add octeon3.
    (octeon_condmove): Remove.
    (octeon_condmove_o1): New reservation.
    (octeon_condmove_o2): New reservation.
    (octeon_condmove_o3_int_on_cc): New reservation.
    (octeon_load_o2): Add octeon3.
    (octeon_cop_o2): Likewise.
    (octeon_store): Likewise.
    (octeon_brj_o2): Likewise.
    (octeon_imul3_o2): Likewise.
    (octeon_imul_o2): Likewise.
    (octeon_mfhilo_o2): Likewise.
    (octeon_imadd_o2): Likewise.
    (octeon_idiv_o2_si): Likewise.
    (octeon_idiv_o2_di): Likewise.
    (octeon_fpu): Add to the automaton.
    (octeon_fpu): New cpu unit.
    (octeon_condmove_o2): Check for non floating point modes.
    (octeon_load_o2): Add prefetchx.
    (octeon_cop_o2): Don't check for octeon3.
    (octeon3_faddsubcvt): New reservation.
    (octeon3_fmul): Likewise.
    (octeon3_fmadd): Likewise.
    (octeon3_div_sf): Likewise.
    (octeon3_div_df): Likewise.
    (octeon3_sqrt_sf): Likewise.
    (octeon3_sqrt_df): Likewise.
    (octeon3_rsqrt_sf): Likewise.
    (octeon3_rsqrt_df): Likewise.
    (octeon3_fabsnegmov): Likewise.
    (octeon_fcond): Likewise.
    (octeon_fcondmov): Likewise.
    (octeon_fpmtc1): Likewise.
    (octeon_fpmfc1): Likewise.
    (octeon_fpload): Likewise.
    (octeon_fpstore): Likewise.
    * config/mips/mips-tables.opt: Regenerate.
    * doc/invoke.texi (-march=@var{arch}): Add octeon3.