[Bug lto/88112] [9 regression] ICE in lto1: TYPE_FIELDS defined in incomplete type

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88112

--- Comment #9 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Anyhow, if we do not want to clear those sizepos we could do
> a walk_tree () looking for non-streamable parts and if found
> reset it to plain PLACEHOLDER_EXPR.  Note that I am also looking
> for a fix suitable for GCC 8 (for the original referenced bug
> motivating the change).

Note that CONTAINS_PLACEHOLDER_P already does a recursive tree walking.