AIX bootstrap failure (was Re: Make reload to avoid invalid subregs)

[Jan Hubicka]

> 	This patch appears to be causing a bootstrap failure.
> 
> /gcc/dje/src/gcc/libgcc2.c: In function `__floattidf':
> /gcc/dje/src/gcc/libgcc2.c:1254: internal compiler error: in subreg_offset_representable_p, at rtlanal.c:3456

I will check it this evening.  Perhaps I got some of the endianity
compensations wrong.

Honza
> 
> David