https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96623
--- 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:89100826acec92dfaa6ab8f2646b8053e7dbc67c commit r11-6874-g89100826acec92dfaa6ab8f2646b8053e7dbc67c Author: Marek Polacek <pola...@redhat.com> Date: Thu Jan 21 16:12:28 2021 -0500 c++: ICE with noexcept in class in member function [PR96623] I discovered very strange code in inject_parm_decls: if (args && is_this_parameter (args)) { gcc_checking_assert (current_class_ptr == NULL_TREE); current_class_ptr = NULL_TREE; We are tripping up on the assert because when we call inject_parm_decls, current_class_ptr is set to 'A'. It was set by inject_this_parameter after we've parsed the parameter-declaration-clause of the member function foo. It seems correct to set ccp/ccr to A::B when we're late parsing the noexcept-specifiers of bar* functions in B, so that this-> does the right thing. Since inject_parm_decls doesn't expect to see non-null ccp/ccr, reset it before calling inject_parm_decls. gcc/cp/ChangeLog: PR c++/96623 * parser.c (inject_parm_decls): Remove a redundant assignment. (cp_parser_class_specifier_1): Clear current_class_{ptr,ref} before calling inject_parm_decls. gcc/testsuite/ChangeLog: PR c++/96623 * g++.dg/cpp0x/noexcept64.C: New test.
