https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100557
--- Comment #7 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The trunk branch has been updated by Marek Polacek <mpola...@gcc.gnu.org>: https://gcc.gnu.org/g:c0e199e4dbe652cd16d7248f0bfe166540f5d95b commit r14-9674-gc0e199e4dbe652cd16d7248f0bfe166540f5d95b Author: Marek Polacek <pola...@redhat.com> Date: Tue Mar 26 10:39:48 2024 -0400 c++: add fixed test [PR100557] We used to hit the "Error reporting routines re-entered." ICE here but it was fixed by Patrick's r14-3809. PR c++/100557 gcc/testsuite/ChangeLog: * g++.dg/cpp2a/concepts-pr100557.C: New test.