config.gcc: Add .opt magic for the rs6000 ports.

config.gcc: Add .opt magic for the rs6000 ports.

2005-05-05  Aldy Hernandez  <aldyh@redhat.com>

        * config.gcc: Add .opt magic for the rs6000 ports.

        * doc/invoke.texi: Document -mabi= option properly.  Document
        -misel and -mno-sel.  Document -mspe and -mno-spe.  Document
        -mvrsave and -mno-vrsave.  Document deprecation of -mspe= and
        -misel=.

        * config/rs6000/aix.h: Remove XL_COMPAT stuff.  Remove
        SUBTARGET_SWITCHES and SUBSUBTARGET_SWITCHES.  Define
        TARGET_XL_COMPAT.

        * config/rs6000/aix.opt: New.
        * config/rs6000/aix41.opt: New.
        * config/rs6000/aix64.opt: New.
        * config/rs6000/darwin.opt: New.
        * config/rs6000/linux64.opt: New.
        * config/rs6000/rs6000.opt: New.
        * config/rs6000/sysv4.opt: New.

        * config/rs6000/sysv4.h: Delete definitions of MASK_* and
        associated TARGET_*.  Remove SUBTARGET_OPTIONS,
        SUBTARGET_SWITCHES.
        Define TARGET_USES_SYSV4_OPT.
        * config/rs6000/aix41.h: Remove SUBSUBTARGET_SWITCHES.
        * config/rs6000/aix43.h: Remove SUBSUBTARGET_SWITCHES.  Define
        TARGET_USES_AIX64_OPT.
        * config/rs6000/aix51.h: Same.
        * config/rs6000/aix52.h: Same.
        * config/rs6000/darwin.h: Remove
        SUBTARGET_SWITCHES.  Use TARGET_ALTIVEC_VRSAVE instead of
        rs6000_altivec_vrsave.
        * config/rs6000/linux64.h: Use
        rs6000_explicit_options.  Remove EXTRA_SUBTARGET_SWITCHES.

        * config/rs6000/rs6000.c: Remove definitions of
        rs6000_sched_restricted_insns_priority,
        rs6000_long_double_size_string, rs6000_altivec_vrsave,
        rs6000_altivec_vrsave_string, rs6000_isel, rs6000_spe,
        rs6000_float_gprs_string, rs6000_isel_string, rs6000_spe_string,
        rs6000_abi_string, rs6000_warn_altivec_long, rs6000_longcall,
        rs6000_alignment_string.  Define rs6000_explicit_options.
        (rs6000_parse_abi_options): Remove.
        (rs6000_parse_alignment_option): Remove.
        (rs6000_parse_float_gprs_option): Remove.
        (rs6000_handle_option): New.  Define TARGET_HANDLE_OPTION.  Define
        TARGET_DEFAULT_TARGET_FLAGS.
        (rs6000_override_options): Revamp to use new .opt machinery.

        * config/rs6000/rs6000.h: Remove old MASK_* and TARGET_* in favor
        of new .opt machinery.  Remove target_flags.  Redefine
        TARGET_MFCRF and TARGET_POWERPC64.  Remove TARGET_SWITCHES,
        SUBTARGET_SWITCHES, TARGET_OPTIONS, SUBTARGET_OPTIONS,
        rs6000_float_gprs_string, rs6000_isel_string, rs6000_spe_string,
        rs6000_altivec_vrsave_string, rs6000_altivec_vrsave,
        rs6000_longcall_switch, rs6000_default_long_calls,
        rs6000_sched_costly_dep_str, rs6000_sched_costly_dep,
        rs6000_warn_altivec_long, rs6000_warn_altivec_long_switch, and
        TARGET_ALTIVEC_VRSAVE.

From-SVN: r99284