Patch ping

[Jeff Law]

On 03/31/2017 12:36 AM, Jakub Jelinek wrote:
> Hi!
>
> I'd like to ping two patches:
>
> PR c++/79572
>   - ubsan instrumentation of reference binding to NULL if the reference
>     is folded into INTEGER_CST with REFERENCE_TYPE
>     http://gcc.gnu.org/ml/gcc-patches/2017-03/msg01255.html
>
> PR debug/79255
>   - dwarf2out profiledbootstrap ICE while building gnat;
>     either the posted patch
>     http://gcc.gnu.org/ml/gcc-patches/2017-03/msg01257.html
>     or in gen_decl_die:
>    case FUNCTION_DECL:
> +    /* decl is NULL only if when processing a function declaration in
> +       BLOCK_NONLOCALIZED_VARS.  It is a normal declaration, not an
> +       abstract copy of something, so make sure we don't handle it
> +       like function inlined into something.  */
> +    if (decl == NULL_TREE)
> +      {
> +	decl = origin;
> +	origin = NULL_TREE;
> +      }
>     or something else (another possibility is to replace all decl
>     uses in case FUNCTION_DECL with decl_or_origin and
> -	  if (!origin)
> -	    origin = decl_class_context (decl);
> +	  if (!decl || !origin)
> +	    origin = decl_class_context (decl_or_origin);
I think I prefer your original approach -- pass in the original 
FUNCTION_DECL.  It seems to me like the other approaches are just 
papering over the issue.

Original approach is OK for the trunk.

jeff