[Bug c++/68763] [6 Regression] ICE: in verify_unstripped_args, at cp/pt.c:1132

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68763

--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Jason Merrill from comment #15)
> Does anyone have a reduced testcase for this?

I've started delta and creduce, but it is boost, so it will take a while (at
7.6MB so far).

> Jakub, where are we modifying the TREE_PURPOSE after creating the
> METHOD_TYPE?

In cp_parser_late_parsing_default_args.