rs6000.c (rs6000_alignment_string, [...]): New variables.

2003-05-18  Kevin B. Hendricks  <kevin.hendricks@sympatico.ca>
            David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_alignment_string,
        rs6000_alignment_flags): New variables.
        (rs6000_parse_alignment_option): New function.
        (rs6000_override_options): Call it.
        * config/rs6000/rs6000.h (TARGET_OPTIONS): Add -malign-XXX option.
        (MASK_ALIGN_POWER, MASK_ALIGN_NATURAL, TARGET_ALIGN_NATURAL): New
        macros.
        * config/rs6000/aix.h (ADJUST_FIELD_ALIGN): Always use COMPUTED
        natural alignment if TARGET_NATURAL_ALIGNMENT
        (ROUND_TYPE_ALIGN): Always use default record alignment if
        TAGET_NATURAL_ALIGNMENT.
        * config/rs6000/darwin.h (ADJUST_FIELD_ALIGN): Same
        (ROUND_TYPE_ALIGN): Same.
        * config/rs6000/linux64.h (ADJUST_FIELD_ALIGN): Same
        (ROUND_TYPE_ALIGN): Same.

Co-Authored-By: David Edelsohn <edelsohn@gnu.org>

From-SVN: r66967