https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100055
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Marek Polacek <mpola...@gcc.gnu.org>: https://gcc.gnu.org/g:c9b6890d0b6aa030b307fdb620f8c53ed59ca3b5 commit r12-389-gc9b6890d0b6aa030b307fdb620f8c53ed59ca3b5 Author: Marek Polacek <pola...@redhat.com> Date: Thu Apr 22 17:32:01 2021 -0400 c++: Fix ICE with invalid requires-expression [PR100055] This fixes a crash on invalid requires-expression: in this test, current_template_parms is null so accessing TEMPLATE_PARMS_CONSTRAINTS is going to fail. So don't crash, but make sure we've complained already. gcc/cp/ChangeLog: PR c++/100055 * decl.c (grokfndecl): Check current_template_parms. gcc/testsuite/ChangeLog: PR c++/100055 * g++.dg/concepts/diagnostic18.C: New test.
