https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117855
--- Comment #10 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-14 branch has been updated by Patrick Palka <ppa...@gcc.gnu.org>: https://gcc.gnu.org/g:c061ad5a36ba0c07d3d9d82a85aebb887def759d commit r14-11256-gc061ad5a36ba0c07d3d9d82a85aebb887def759d Author: Patrick Palka <ppa...@redhat.com> Date: Tue Jan 28 09:27:02 2025 -0500 c++: friend vs inherited guide confusion [PR117855] We recently started using the lang_decl_fn::context field to track inheritedness of a deduction guide (for C++23 inherited CTAD). This new overloading of the field accidentally made DECL_FRIEND_CONTEXT return non-NULL for inherited guides, which breaks the below testcase during overload resolution with an inherited guide. This patch fixes this by refining DECL_FRIEND_CONTEXT appropriately. PR c++/117855 gcc/cp/ChangeLog: * cp-tree.h (DECL_FRIEND_CONTEXT): Exclude deduction guides. gcc/testsuite/ChangeLog: * g++.dg/cpp23/class-deduction-inherited7.C: New test. Reviewed-by: Jason Merrill <ja...@redhat.com> (cherry picked from commit ea578dd251eaf6304b0c95acc107f9a4d63bee8f)
