https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113292
--- Comment #1 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Nathaniel Shead <nsh...@gcc.gnu.org>: https://gcc.gnu.org/g:14338386970bc6c2d46b81181f48622fdf25d705 commit r14-8168-g14338386970bc6c2d46b81181f48622fdf25d705 Author: Nathaniel Shead <nathanielosh...@gmail.com> Date: Thu Jan 11 16:49:39 2024 +1100 c++: Support thread_local statics in header modules [PR113292] Currently, thread_locals in header modules cause ICEs. This patch makes the required changes for them to work successfully. This requires additionally writing the DECL_TLS_MODEL for thread-local variables to the module interface, and the TLS wrapper function needs to have its DECL_BEFRIENDING_CLASSES written too as this is used to retrieve what VAR_DECL it's a wrapper for when emitting a definition at end of TU processing. PR c++/113292 gcc/cp/ChangeLog: * decl2.cc (get_tls_wrapper_fn): Set DECL_CONTEXT. (c_parse_final_cleanups): Suppress warning for no definition of TLS wrapper functions in header modules. * module.cc (trees_out::lang_decl_vals): Write wrapped variable for TLS wrapper functions. (trees_in::lang_decl_vals): Read it. (trees_out::decl_value): Write TLS model for thread-local vars. (trees_in::decl_value): Read it for new decls. Remember to emit definitions of TLS wrapper functions later. gcc/testsuite/ChangeLog: * g++.dg/modules/pr113292_a.H: New test. * g++.dg/modules/pr113292_b.C: New test. * g++.dg/modules/pr113292_c.C: New test. Signed-off-by: Nathaniel Shead <nathanielosh...@gmail.com>
