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[123.243.206.49]) by smtp.gmail.com with ESMTPSA id fb32-20020a056a002da000b006e0a65e20a4sm2754442pfb.146.2024.02.11.05.26.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 11 Feb 2024 05:26:21 -0800 (PST) Message-ID: <65c8cafd.050a0220.3ef59.516b@mx.google.com> X-Google-Original-Message-ID: Date: Mon, 12 Feb 2024 00:26:15 +1100 From: Nathaniel Shead To: gcc-patches@gcc.gnu.org Cc: Jason Merrill , Nathan Sidwell , Patrick Palka Subject: [PATCH] c++/modules: Finalise non-local imported vars [PR113708] MIME-Version: 1.0 Content-Disposition: inline X-Spam-Status: No, score=-11.1 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE, URIBL_BLACK autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1790609214816538845 X-GMAIL-MSGID: 1790609214816538845 Bootstrapped and regtested (just modules.exp so far) on x86_64-pc-linux-gnu, OK for trunk if full regtest succeeds? -- >8 -- Currently inline vars imported from modules aren't correctly finalised, which means that import_export_decl gets called at the end of TU processing despite not being meant to for these kinds of declarations. This patch takes the logic from 'make_rtl_for_nonlocal_decl' to determine when to perform rest of decl compilation on these decls. However other parts of this function (asmspec handling) are not yet covered. PR c++/113708 gcc/cp/ChangeLog: * module.cc (trees_in::read_var_def): Perform rest of decl compilation on non-local statics. gcc/testsuite/ChangeLog: * g++.dg/modules/init-7_a.H: New test. * g++.dg/modules/init-7_b.C: New test. Signed-off-by: Nathaniel Shead --- gcc/cp/module.cc | 12 +++++++++++- gcc/testsuite/g++.dg/modules/init-7_a.H | 6 ++++++ gcc/testsuite/g++.dg/modules/init-7_b.C | 6 ++++++ 3 files changed, 23 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/g++.dg/modules/init-7_a.H create mode 100644 gcc/testsuite/g++.dg/modules/init-7_b.C diff --git a/gcc/cp/module.cc b/gcc/cp/module.cc index 560d8f3b614..49a3421e6cc 100644 --- a/gcc/cp/module.cc +++ b/gcc/cp/module.cc @@ -11809,6 +11809,7 @@ trees_in::read_var_def (tree decl, tree maybe_template) { if (DECL_EXTERNAL (decl)) DECL_NOT_REALLY_EXTERN (decl) = true; + DECL_INITIAL (decl) = init; if (VAR_P (decl)) { DECL_INITIALIZED_P (decl) = true; @@ -11819,8 +11820,17 @@ trees_in::read_var_def (tree decl, tree maybe_template) && !DECL_VTABLE_OR_VTT_P (decl) && !DECL_TEMPLATE_INFO (decl))) note_vague_linkage_variable (decl); + + /* Emit RTL as needed, as with make_rtl_for_nonlocal_decl. */ + // FIXME: Handle asmspec? + if ((!DECL_FUNCTION_SCOPE_P (decl) + || (TREE_STATIC (decl) && var_in_maybe_constexpr_fn (decl))) + && !DECL_VIRTUAL_P (decl) + && (!DECL_TEMPLATE_INFO (decl) + || DECL_EXPLICIT_INSTANTIATION (decl))) + rest_of_decl_compilation (decl, !DECL_FUNCTION_SCOPE_P (decl), + /*at_end=*/0); } - DECL_INITIAL (decl) = init; if (!dyn_init) ; else if (CP_DECL_THREAD_LOCAL_P (decl)) diff --git a/gcc/testsuite/g++.dg/modules/init-7_a.H b/gcc/testsuite/g++.dg/modules/init-7_a.H new file mode 100644 index 00000000000..7a0bb721c30 --- /dev/null +++ b/gcc/testsuite/g++.dg/modules/init-7_a.H @@ -0,0 +1,6 @@ +// PR c++/113708 +// { dg-additional-options "-fmodule-header" } +// { dg-module-cmi {} } + +inline int f() { return 42; } +inline int a = f(); diff --git a/gcc/testsuite/g++.dg/modules/init-7_b.C b/gcc/testsuite/g++.dg/modules/init-7_b.C new file mode 100644 index 00000000000..58bb0620ca5 --- /dev/null +++ b/gcc/testsuite/g++.dg/modules/init-7_b.C @@ -0,0 +1,6 @@ +// PR c++/113708 +// { dg-module-do link } +// { dg-additional-options "-fmodules-ts" } + +import "init-7_a.H"; +int main() { a; }