[lto]: merge from trunk

[Diego Novillo]

On 7/24/08 12:38 AM, Bill Maddox wrote:

> Index: gcc/tree.c
> ===================================================================
> --- gcc/tree.c	(revision 138093)
> +++ gcc/tree.c	(working copy)
> @@ -4004,6 +4004,7 @@ free_lang_specifics (void)
>  {
>    htab_traverse (uid2type_map, reset_type_lang_specific, NULL);
>    htab_traverse (decl_for_uid_map, reset_lang_specific, NULL);
> +  ptrdiff_type_node = integer_type_node;

I forgot to add a 'FIXME lto' note.  This is a hideous hack.  We need to 
decide what to do with this C-specific type.  This goes to GIMPLE type 
system that Kenny has started to look into.

Did you find out what was the out-of-sync problem I was having between 
cc1 and lto1?  It must've been something trivial because I don't see 
much difference between my WIP patch and this one.

Thanks for finishing this up.  Is this enough to bring the branch back 
to a stable state?


Thanks.  Diego.