https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116323
--- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Simon Martin <simar...@gcc.gnu.org>: https://gcc.gnu.org/g:19831baf4904d09a74c7cf684a27b091947a610b commit r15-3598-g19831baf4904d09a74c7cf684a27b091947a610b Author: Simon Martin <si...@nasilyan.com> Date: Tue Sep 10 22:33:18 2024 +0200 c++: Don't ICE to build private access error message [PR116323] We currently ICE upon the following code while building the "[...] is private within this context" error message === cut here === class A { enum Enum{}; }; template<typename E, template<typename> class Alloc> class B : private Alloc<E>, private A {}; template<typename E, template<typename> class Alloc> int B<E, Alloc>::foo (Enum m) { return 42; } === cut here === The problem is that since r11-6880, after detecting that Enum cannot be accessed in B, enforce_access will access the TYPE_BINFO of all the bases of B, which ICEs for any that is a BOUND_TEMPLATE_TEMPLATE_PARM. This patch simply skips such bases. PR c++/116323 gcc/cp/ChangeLog: * search.cc (get_parent_with_private_access): Only call access_in_type for RECORD_OR_UNION_TYPE_P base BINFOs. gcc/testsuite/ChangeLog: * g++.dg/template/access43.C: New test.
