sh64-elf (SH5) port

[Alexandre Oliva]

On Feb  3, 2002, Mark Mitchell <mark@codesourcery.com> wrote:

>> +#ifdef MS_BITFIELD_LAYOUT_P
>> +		&& ! MS_BITFIELD_LAYOUT_P (t)
>> +#endif

> Similarly, we should just always define the macro/callback, but make
> it return zero on most targets.

Ok, here's an implementation as a target hook.  Tested on
athlon-pc-linux-gnu-x-sh-elf, with the second patch below, now
bootstrapping on athlon-pc-linux-gnu now.  The sum of these two
patches replacs the original MS_BITFIELD_LAYOUT_P changes in the big
sh5-gcc.patch I posted yesterday.

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-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist                Professional serial bug killer