powerpc patch 2 of 9

[Zack Weinberg]

On Wed, Feb 20, 2002 at 09:52:56PM -0500, David Edelsohn wrote:
>         (RETURN_IN_MEMORY): Use HOST_WIDE_INT, not HOST_WIDEST_INT.
> 
> This change is incorrect.  Zack used HOST_WIDEST_INT on purpose.  See
> 
> http://gcc.gnu.org/ml/gcc-patches/2001-12/msg00126.html

Actually, the important property of that cast is that it's to an
unsigned type, not that it's to HOST_WIDEST_INT.  We want a -1
return from int_size_in_bytes to cause RETURN_IN_MEMORY to be true.
Since int_size_in_bytes returns signed HOST_WIDE_INT, it should be
safe to use unsigned HOST_WIDE_INT.

I don't remember why I used unsigned HOST_WIDEST_INT.  I think I
might have misread the code and thought that int_size_in_bytes
returned signed HOST_WIDEST_INT.

zw