Re: attribute((leafify)) for 3.4

[Jan Hubicka <jh at suse dot cz>]

> Hi!
> 
> I finally found what is throwing away function bodies wrongly for me.
> It's tree_rest_of_compilation()! I suppose, when under cgraph control,
> its not neccessary to
> 
>   /* If possible, obliterate the body of the function so that it can
>      be garbage collected.  */
>   if (dump_enabled_p (TDI_all))
>     /* Keep the body; we're going to dump it.  */
>     ;
>   else if (DECL_INLINE (fndecl) && flag_inline_trees)
>     /* We might need the body of this function so that we can expand
>        it inline somewhere else.  */
>     ;
>   else
>     /* We don't need the body; blow it away.  */
>     DECL_SAVED_TREE (fndecl) = NULL;
> 
> so I guarded the inline check with flag_unit_at_a_time as follows:
> 
> ...
>   else if (flag_unit_at_a_time || (DECL_INLINE (fndecl) && flag_inline_trees))
>     /* We might need the body of this function so that we can expand
>        it inline somewhere else.  */
>     ;
> ...
> 
> but maybe even the whole throwing away the decl can be disabled for
> unit-at-a-time.

I tought this was done for ages already! 
(I definitly made patch for this).  I will commit ovious patch for this
soonish.

Thanks
Honza
> 
> Richard.
> 
> --
> Richard Guenther <richard dot guenther at uni-tuebingen dot de>
> WWW: http://www.tat.physik.uni-tuebingen.de/~rguenth/
>