Re: [PATCH][PR91979] Incorrect mangling for non-template-argument nullptr expression

[Marek Polacek]

On Tue, Oct 22, 2019 at 10:00:19PM +0530, kamlesh kumar wrote:
> diff --git a/gcc/cp/mangle.c b/gcc/cp/mangle.c
> index a9333b8..780da9f 100644
> --- a/gcc/cp/mangle.c
> +++ b/gcc/cp/mangle.c
> @@ -3400,7 +3400,8 @@ write_template_arg_literal (const tree value)
>        case INTEGER_CST:
>         gcc_assert (!same_type_p (TREE_TYPE (value), boolean_type_node)
>                     || integer_zerop (value) || integer_onep (value));
> -       write_integer_cst (value);
> +       if (TREE_CODE(TREE_TYPE(value)) != NULLPTR_TYPE)
> +         write_integer_cst (value);

Please use NULLPTR_TYPE_P.

Does this warrant a new -fabi-version?

Marek