[RS6000] IBM long double little-endian

[David Edelsohn]

On Wed, Jun 12, 2013 at 10:53 AM, Alan Modra <amodra@gmail.com> wrote:

>         * config/rs6000/rs6000.h (LONG_DOUBLE_LARGE_FIRST): Define.
>         * config/rs6000/rs6000.md (signbittf2): New insn.
>         (extenddftf2_internal): Use LONG_DOUBLE_LARGE_FIRST.
>         (abstf2_internal, cmptf_internal2): Likewise.
>         * config/rs6000/spe.md (spe_abstf2_cmp, spe_abstf2_tst): Likewise.


Why create and define LONG_DOUBLE_LARGE_FIRST if it always is "1"
(True)?  To retain flexibility?

Thanks, David