[PATCH]: Rewrite tree level PRE

[Ralf Wildenhues]

Hello Daniel,

* Daniel Berlin wrote on Sun, Jul 06, 2008 at 06:33:10AM CEST:
> 	* Makefile.in (OBJS-common): Remove tree-vn.o.
> 	tree-vn.o: Remove.

> 	* tree-ssa-pre.c: Rewritten entirely.

> --- a/gcc/Makefile.in	Sun Jul 06 00:16:30 2008 +0000
> +++ b/gcc/Makefile.in	Sun Jul 06 00:27:17 2008 -0400

Needs $(DBGCNT_H) added to tree-ssa-pre.o prerequisites.

> --- a/gcc/tree-ssa-pre.c	Sun Jul 06 00:16:30 2008 +0000
> +++ b/gcc/tree-ssa-pre.c	Sun Jul 06 00:27:17 2008 -0400
> @@ -46,6 +46,7 @@
>  #include "cfgloop.h"
>  #include "tree-ssa-sccvn.h"
>  #include "params.h"
> +#include "dbgcnt.h"

Cheers,
Ralf