{"id":2226312,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2226312/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/patch/bmm.hhubrmqub2.gcc.gcc-TEST.redi.31.1.9@forge-stage.sourceware.org/","project":{"id":17,"url":"http://patchwork.ozlabs.org/api/1.2/projects/17/?format=json","name":"GNU Compiler Collection","link_name":"gcc","list_id":"gcc-patches.gcc.gnu.org","list_email":"gcc-patches@gcc.gnu.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"","list_archive_url":null,"date":"2026-04-22T10:44:24","name":"[v1,09/16] libstdc++: Rename __atomic_compare to __atomic_eq","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"556ce5719be45ff5a54b80539e72ec924f3e34da","submitter":{"id":93210,"url":"http://patchwork.ozlabs.org/api/1.2/people/93210/?format=json","name":"Jonathan Wakely via Sourceware Forge","email":"forge-bot+redi@forge-stage.sourceware.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/gcc/patch/bmm.hhubrmqub2.gcc.gcc-TEST.redi.31.1.9@forge-stage.sourceware.org/mbox/","series":[{"id":500987,"url":"http://patchwork.ozlabs.org/api/1.2/series/500987/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=500987","date":"2026-04-22T10:44:17","name":"atomic wait/notify ABI stabilization","version":1,"mbox":"http://patchwork.ozlabs.org/series/500987/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2226312/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2226312/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","gcc-patches@gcc.gnu.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","gcc-patches@gcc.gnu.org"],"Authentication-Results":["legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n (client-ip=38.145.34.32; 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server2.sourceware.org","From":"Jonathan Wakely via Sourceware Forge\n ","Date":"Wed, 22 Apr 2026 10:44:24 +0000","Subject":"[PATCH v1 09/16] libstdc++: Rename __atomic_compare to __atomic_eq","To":"gcc-patches mailing list ","Message-ID":"\n ","X-Mailer":"batrachomyomachia","X-Pull-Request-Organization":"gcc","X-Pull-Request-Repository":"gcc-TEST","X-Pull-Request":"https://forge.sourceware.org/gcc/gcc-TEST/pulls/31","References":"\n ","In-Reply-To":"\n ","X-Patch-URL":"\n https://forge.sourceware.org/redi/gcc/commit/c0704254a949dd02fa2c96f2864b3c918140f119","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Reply-To":"gcc-patches mailing list , redi@gcc.gnu.org","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"},"content":"From: Jonathan Wakely \n\nThis is an equality comparison rather than a three-way comparison like\nmemcmp and <=>, so name it more precisely.\n\nlibstdc++-v3/ChangeLog:\n\n\t* include/bits/atomic_timed_wait.h\n\t(__atomic_wait_address_until_v): Replace __atomic_compare with\n\t__atomic_eq.\n\t(__atomic_wait_address_for_v): Likewise.\n\t* include/bits/atomic_wait.h (__atomic_compare): Rename to\n\t__atomic_eq.\n\t(__atomic_wait_address_v): Replace __atomic_compare with\n\t__atomic_eq.\n---\n libstdc++-v3/include/bits/atomic_timed_wait.h | 10 ++++++----\n libstdc++-v3/include/bits/atomic_wait.h | 5 +++--\n 2 files changed, 9 insertions(+), 6 deletions(-)","diff":"diff --git a/libstdc++-v3/include/bits/atomic_timed_wait.h b/libstdc++-v3/include/bits/atomic_timed_wait.h\nindex cbf9187f2bb8..800f461e9e48 100644\n--- a/libstdc++-v3/include/bits/atomic_timed_wait.h\n+++ b/libstdc++-v3/include/bits/atomic_timed_wait.h\n@@ -302,8 +302,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION\n \t\t\t\t const chrono::time_point<_Clock, _Dur>& __atime,\n \t\t\t\t bool __bare_wait = false) noexcept\n {\n- auto __pfn = [&](const _Tp& __val)\n-\t { return !__detail::__atomic_compare(__old, __val); };\n+ auto __pfn = [&](const _Tp& __val) {\n+\treturn !__detail::__atomic_eq(__old, __val);\n+ };\n return __atomic_wait_address_until(__addr, __pfn, forward<_ValFn>(__vfn),\n \t\t\t\t\t __atime, __bare_wait);\n }\n@@ -350,8 +351,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION\n \t\t\t\tconst chrono::duration<_Rep, _Period>& __rtime,\n \t\t\t\tbool __bare_wait = false) noexcept\n {\n- auto __pfn = [&](const _Tp& __val)\n-\t { return !__detail::__atomic_compare(__old, __val); };\n+ auto __pfn = [&](const _Tp& __val) {\n+\treturn !__detail::__atomic_eq(__old, __val);\n+ };\n return __atomic_wait_address_for(__addr, __pfn, forward<_ValFn>(__vfn),\n \t\t\t\t __rtime, __bare_wait);\n }\ndiff --git a/libstdc++-v3/include/bits/atomic_wait.h b/libstdc++-v3/include/bits/atomic_wait.h\nindex cfda323a3ab6..40d8471413a2 100644\n--- a/libstdc++-v3/include/bits/atomic_wait.h\n+++ b/libstdc++-v3/include/bits/atomic_wait.h\n@@ -154,7 +154,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION\n \n // return true if equal\n template\n- bool __atomic_compare(const _Tp& __a, const _Tp& __b)\n+ inline bool\n+ __atomic_eq(const _Tp& __a, const _Tp& __b)\n {\n \t// TODO make this do the correct padding bit ignoring comparison\n \treturn __builtin_memcmp(&__a, &__b, sizeof(_Tp)) == 0;\n@@ -483,7 +484,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION\n \t\t\t _ValFn __vfn) noexcept\n {\n auto __pfn = [&](const _Tp& __val)\n-\t { return !__detail::__atomic_compare(__old, __val); };\n+\t { return !__detail::__atomic_eq(__old, __val); };\n __atomic_wait_address(__addr, __pfn, forward<_ValFn>(__vfn));\n }\n \n","prefixes":["v1","09/16"]}