https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98333
--- Comment #3 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:c37f1d4081f5a19e39192d13e2a3acea13662e5a commit r11-6799-gc37f1d4081f5a19e39192d13e2a3acea13662e5a Author: Marek Polacek <pola...@redhat.com> Date: Fri Jan 8 15:48:41 2021 -0500 c++: ICE when late parsing noexcept/NSDMI [PR98333] Since certain members of a class are a complete-class context [class.mem.general]p7, we delay their parsing untile the whole class has been parsed. For instance, NSDMIs and noexcept-specifiers. The order in which we perform this delayed parsing matters; we were first parsing NSDMIs and only they did we parse noexcept-specifiers. That turns out to be wrong: since NSDMIs may use noexcept-specifiers, we must process noexcept-specifiers first. Otherwise we'll ICE in code that doesn't expect to see DEFERRED_PARSE. This doesn't just shift the problem, noexcept-specifiers can use members with a NSDMI just fine, and I've also tested a similar test with this member function: bool f() { return __has_nothrow_constructor (S<true>); } and that compiled fine too. gcc/cp/ChangeLog: PR c++/98333 * parser.c (cp_parser_class_specifier_1): Perform late-parsing of NSDMIs before late-parsing of noexcept-specifiers. gcc/testsuite/ChangeLog: PR c++/98333 * g++.dg/cpp0x/noexcept62.C: New test.
