https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95371
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-10 branch has been updated by Jason Merrill <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:c07c745b1ef62f633024824b7e125027f10c969b commit r10-8211-gc07c745b1ef62f633024824b7e125027f10c969b Author: Jason Merrill <ja...@redhat.com> Date: Fri May 29 16:55:52 2020 -0400 c++: Template template parameter in constraint [PR95371] gcc/cp/ChangeLog: PR c++/95371 * pt.c (process_template_parm): Set DECL_TEMPLATE_INFO on the DECL_TEMPLATE_RESULT. gcc/testsuite/ChangeLog: PR c++/95371 * g++.dg/cpp2a/concepts-ttp1.C: New test. (cherry picked from commit d91b3aea7a5bdfbdaec746af2d62894812e6fd86)