https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119551
--- Comment #7 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:3042862fbdba809473e3ea4ddc1697692b233d5f commit r15-9610-g3042862fbdba809473e3ea4ddc1697692b233d5f Author: Nathaniel Shead <nathanielosh...@gmail.com> Date: Tue Apr 29 17:31:55 2025 +1000 c++/modules: Catch exposures of TU-local values through inline references [PR119996] In r15-9136-g0210bedf481a9f we started erroring for inline variables that exposed TU-local entities in their definition, as such variables would need to have their definitions emitted in importers but would not know about the TU-local entities they referenced. A case we mised was potentially-constant references, which disable streaming of their definitions in make_dependency so as to comply with [expr.const] p9.2. This meant that we didn't see the definition referencing a TU-local entity, leading to nonsensical results. PR c++/119551 PR c++/119996 gcc/cp/ChangeLog: * module.cc (depset::hash::make_dependency): Also mark inline variables referencing TU-local values as exposures here. (depset::hash::finalize_dependencies): Add error message for inline variables. gcc/testsuite/ChangeLog: * g++.dg/modules/internal-13.C: New test. Signed-off-by: Nathaniel Shead <nathanielosh...@gmail.com> Reviewed-by: Jason Merrill <ja...@redhat.com> (cherry picked from commit 22ccaded63e96e5a42f4e3676dbbb57aa05b36f9)
