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

[jason at gcc dot gnu.org]

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

--- Comment #15 from Jason Merrill <jason at gcc dot gnu.org> ---
Does anyone have a reduced testcase for this?

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