[Bug middle-end/68117] [6 Regression] error: invalid PHI argument <<< Unknown tree: <invalid tree code> >>>

[gary at intrepid dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68117

--- Comment #38 from Gary Funck <gary at intrepid dot com> ---
(In reply to Richard Biener from comment #37)
>
> Does the following help on r230428 or newer?
> 
> Index: gcc/tree-ssa.c
> ===================================================================
> --- gcc/tree-ssa.c      (revision 230428)
> +++ gcc/tree-ssa.c      (working copy)
> @@ -1126,6 +1145,9 @@ delete_tree_ssa (struct function *fn)
>    fn->gimple_df->decls_to_pointers = NULL;
>    fn->gimple_df->modified_noreturn_calls = NULL;
>    fn->gimple_df = NULL;
> +
> +  /* We no longer need the edge variable maps.  */
> +  redirect_edge_var_map_destroy ();
>  }
>  
>  /* Return true if EXPR is a useless type conversion, otherwise return

Yes, was able to do a full bootstrap at -O3 of all languages.