From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by sourceware.org (Postfix) with ESMTPS id 8605C385783E for ; Wed, 6 Jul 2022 21:42:16 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 8605C385783E Received: from mail-ot1-f72.google.com (mail-ot1-f72.google.com [209.85.210.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-308-udD_uth3Piixupyo-YuMGg-1; Wed, 06 Jul 2022 17:42:09 -0400 X-MC-Unique: udD_uth3Piixupyo-YuMGg-1 Received: by mail-ot1-f72.google.com with SMTP id f34-20020a9d03a5000000b0060c46a7869aso6533491otf.2 for ; Wed, 06 Jul 2022 14:42:09 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=CnXfMuxBfXAdjWz+24ADRf6zER2U1h2w9FkxM9A7tRk=; b=Pi5+H1EhBuvG5crr3YliS7pGPenqpiHiav18NaXMgEmtdU355Z7Aq/1bjEw/VlE3jm SKL/3j6ikzUyaDhwYVp5ZuNKypNpLx/H0uLOgY+RbU/H+GAQCLu617Qje2CrVxfIpt0y BZqxOqpZ+4Xz72t4mxZXnGSm5HEQHM9hkpJWo2OvUT/9AUZYukRlyNBA2vD0zRCrbX55 9OeOSWz3xu45ZCKLBVJKGVXIws1nRJ40EHMFy1UPDLmTQ7O/9rSi2MGL2TURegCQwtxe EkVoO470D2nxflDkVHDCW6rPfvSvY+l/RXGfHf68ZvoTb5zt4PiLj7MkhUxhhMw/5Cwj 85jA== X-Gm-Message-State: AJIora9nJnE9mYgttjop6yrxE2Cey5O3+rQGwCi3nwZfUeCyzwZAwTfy Xh4xRoVudlfUqcbkK0ao5Cwh19RStzwd791rlZV6dwNefHcfS5Ngl5ftT7gjxTJVKydDMTqzkwK X8WQZzBEL8CjqvcKV+a0guwEHpkzpWlY= X-Received: by 2002:a05:6830:2644:b0:619:1423:9b82 with SMTP id f4-20020a056830264400b0061914239b82mr6323246otu.101.1657143728863; Wed, 06 Jul 2022 14:42:08 -0700 (PDT) X-Google-Smtp-Source: AGRyM1tXYDrM5cZDTIhPoR8k05FyzZnMIpvb+8lLdjreZSWkUtlfZfmoRXmxZDwyxSIJ3slaVEiaVzIFIquLn2TKIXc= X-Received: by 2002:a05:6830:2644:b0:619:1423:9b82 with SMTP id f4-20020a056830264400b0061914239b82mr6323227otu.101.1657143728425; Wed, 06 Jul 2022 14:42:08 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Thomas Rodgers Date: Wed, 6 Jul 2022 14:41:57 -0700 Message-ID: Subject: Re: libstdc++: Minor codegen improvement for atomic wait spinloop To: Jonathan Wakely Cc: "libstdc++" , gcc Patches X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Spam-Status: No, score=-6.3 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, HTML_MESSAGE, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_NONE, TXREP, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: libstdc++@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libstdc++ mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Jul 2022 21:42:17 -0000 Ok for trunk? backport? On Wed, Jul 6, 2022 at 1:56 PM Jonathan Wakely wrote: > On Wed, 6 Jul 2022 at 02:05, Thomas Rodgers via Libstdc++ > wrote: > > > > This patch merges the spin loops in the atomic wait implementation which > is > > a > > minor codegen improvement. > > > > libstdc++-v3/ChangeLog: > > * include/bits/atomic_wait.h (__atomic_spin): Merge spin loops. > > OK, thanks. > >