[gfortran] Make all labels DECL_ARTIFICIAL

[Steve Kargl]

On Mon, Dec 20, 2004 at 10:23:44PM +0100, Steven Bosscher wrote:
> 
> There is absolutely nothing we gain from making Fortran's numeric
> labels user labels (gdb can't put break points on them), and they
> for some reason hurt performance.  So the attached patch just all
> marks them as compiler-generated.  Thoughts?

If your patch improves performance without violating the
standard and without micro-optimization obfusictions, then
I think it should be commit after a bootstrap and regression
test.

> diff -u -3 -p -r1.49 trans-decl.c
> --- trans-decl.c	25 Nov 2004 11:13:35 -0000	1.49
> +++ trans-decl.c	20 Dec 2004 07:09:29 -0000
> @@ -148,9 +148,9 @@ gfc_add_decl_to_function (tree decl)
>  }
>  
>  
> -/* Build a  backend label declaration.
> -   Set TREE_USED for named lables.  For artificial labels it's up to the
> -   caller to mark the label as used.  */
> +/* Build a  backend label declaration.  Set TREE_USED for named lables.

lables?

-- 
Steve