https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92650
Arseny Solokha <asolokha at gmx dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |asolokha at gmx dot com --- Comment #2 from Arseny Solokha <asolokha at gmx dot com> --- Created attachment 47393 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47393&action=edit Preprocessed testcase W/ -std=c++17 -fconcepts I get ICE in lazily_declare_fn instead, which looks like a duplicate of PR92552 at first sight, and w/o -fconcepts I don't get any ICE at all.