https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120023
--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-15 branch has been updated by Nathaniel Shead <nsh...@gcc.gnu.org>: https://gcc.gnu.org/g:90484ea24e7886f01200619a55c2343728362fc6 commit r15-9612-g90484ea24e7886f01200619a55c2343728362fc6 Author: Nathaniel Shead <nathanielosh...@gmail.com> Date: Wed Apr 30 23:35:51 2025 +1000 c++/modules: Ensure deduction guides for imported types are reachable [PR120023] In the linked PR, because the deduction guides depend on an imported type, we never walk the type and so never call add_deduction_guides. This patch ensures that we make bindings for deduction guides if we saw any deduction guide at all. PR c++/120023 gcc/cp/ChangeLog: * module.cc (depset::hash::find_dependencies): Also call add_deduction_guides when walking one. gcc/testsuite/ChangeLog: * g++.dg/modules/dguide-7_a.C: New test. * g++.dg/modules/dguide-7_b.C: New test. * g++.dg/modules/dguide-7_c.C: New test. Signed-off-by: Nathaniel Shead <nathanielosh...@gmail.com> Reviewed-by: Jason Merrill <ja...@redhat.com> (cherry picked from commit fb4583566afdee50aad12e1219610813b44bdff4)
