https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68781
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed for GCC 7+ by r238558, "Improving concepts performance and diagnostics."
The bug went away (latent?) on the gcc-6 branch (prior to the 6.1 release) with
r235429.
