[vta, graphite?] propagate degenerate phi nodes into debug stmts

[Alexandre Oliva]

On Nov  8, 2009, Richard Guenther <richard.guenther@gmail.com> wrote:

> @@ -383,13 +402,22 @@ insert_debug_temp_for_var_def (gimple_st
>              dead SSA NAMEs.  SSA verification shall catch any
>              errors.  */
>           if ((!gsi && !gimple_bb (def_stmt))
> -             || !walk_gimple_op (def_stmt, find_released_ssa_name,
> -                                 &wi))
> +             || walk_gimple_op (def_stmt, find_released_ssa_name, &wi))
>             no_value = true;

> please install this as a separate revision - it seems to be an unrelated bugfix.

Here's the separate patch for this bit.  I'll check it in once
regtesting is done.

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-- 
Alexandre Oliva, freedom fighter    http://FSFLA.org/~lxoliva/
You must be the change you wish to see in the world. -- Gandhi
Be Free! -- http://FSFLA.org/   FSF Latin America board member
Free Software Evangelist      Red Hat Brazil Compiler Engineer