https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93684
--- Comment #2 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:e428a9cf85a8bdde9d031a215e10bd96eb3b789a commit r10-6594-ge428a9cf85a8bdde9d031a215e10bd96eb3b789a Author: Marek Polacek <pola...@redhat.com> Date: Tue Feb 11 15:29:24 2020 -0500 c++: Fix ICE-on-invalid with broken attribute [PR93684] We crash when parsing [[a:: because we see a CPP_SCOPE and then we're trying to consume a CPP_EOF token. So peek before consuming it. PR c++/93684 - ICE-on-invalid with broken attribute. * parser.c (cp_parser_std_attribute): Peek a token first before consuming it. * g++.dg/parse/attr4.C: New test.