From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dedi548.your-server.de (dedi548.your-server.de [85.10.215.148]) by sourceware.org (Postfix) with ESMTPS id 4735C3858403 for ; Tue, 8 Nov 2022 12:00:24 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 4735C3858403 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=embedded-brains.de Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=embedded-brains.de Received: from sslproxy04.your-server.de ([78.46.152.42]) by dedi548.your-server.de with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1osNHC-00037K-IL; Tue, 08 Nov 2022 13:00:22 +0100 Received: from [82.100.198.138] (helo=mail.embedded-brains.de) by sslproxy04.your-server.de with esmtpsa (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1osNHC-0005rL-48; Tue, 08 Nov 2022 13:00:22 +0100 Received: from localhost (localhost [127.0.0.1]) by mail.embedded-brains.de (Postfix) with ESMTP id A86AC4800BA; Tue, 8 Nov 2022 13:00:21 +0100 (CET) Received: from mail.embedded-brains.de ([127.0.0.1]) by localhost (zimbra.eb.localhost [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id TGNEyVQmlJAj; Tue, 8 Nov 2022 13:00:21 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by mail.embedded-brains.de (Postfix) with ESMTP id 5521B4801AB; Tue, 8 Nov 2022 13:00:21 +0100 (CET) X-Virus-Scanned: amavisd-new at zimbra.eb.localhost Received: from mail.embedded-brains.de ([127.0.0.1]) by localhost (zimbra.eb.localhost [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id Tc8NDT6xoYCW; Tue, 8 Nov 2022 13:00:21 +0100 (CET) Received: from [192.168.96.159] (unknown [192.168.96.159]) by mail.embedded-brains.de (Postfix) with ESMTPSA id 3D1FC4800BA; Tue, 8 Nov 2022 13:00:21 +0100 (CET) Message-ID: <0b401a57-45f4-6a92-6073-54612a2e0add@embedded-brains.de> Date: Tue, 8 Nov 2022 13:00:21 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.2.2 Subject: Re: -fprofile-update=atomic vs. 32-bit architectures Content-Language: en-US To: Richard Biener Cc: GCC Development References: <13ec35ee-19b2-536c-42d9-28efcd01df5b@embedded-brains.de> <582f9b96-47e9-6005-8d62-fd209f979848@embedded-brains.de> From: Sebastian Huber In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Authenticated-Sender: smtp-embedded@poldinet.de X-Virus-Scanned: Clear (ClamAV 0.103.7/26714/Tue Nov 8 09:56:17 2022) X-Spam-Status: No, score=-5.3 required=5.0 tests=BAYES_00,KAM_DMARC_STATUS,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On 08.11.22 11:25, Richard Biener wrote: >> How do I get ((unsigned int *) &val) + 1 from tree addr? >> >> It would be great to have a code example for the construction of the "= if >> (f()) f();". > I think for the function above we need to emit __atomic_fetch_add_8, > not the emulated form because we cannot insert the required control > flow (if (f()) f()) on an edge. The __atomic_fetch_add_8 should then b= e > lowered after the instrumentation took place. Ok, I am not a compiler expert, so I have just a vague feeling how this=20 works. I am not sure which piece is responsible for the "lowering" of=20 this particular __atomic_fetch_add_8. I guess we don't want to split all=20 __atomic_fetch_add_8 into this if (f()) f(); form? >=20 > There's currently no helper to create a diamond so the canonical > way is to create a GIMPLE_COND, split the block after this stmt, > split the outgoing edge and then redirect edges to form a half-diamond. > move_sese_in_condition has most of that CFG manipulation (but > it performs sth different) Thanks, I will probably able to do this with a bit trial and error. --=20 embedded brains GmbH Herr Sebastian HUBER Dornierstr. 4 82178 Puchheim Germany email: sebastian.huber@embedded-brains.de phone: +49-89-18 94 741 - 16 fax: +49-89-18 94 741 - 08 Registergericht: Amtsgericht M=C3=BCnchen Registernummer: HRB 157899 Vertretungsberechtigte Gesch=C3=A4ftsf=C3=BChrer: Peter Rasmussen, Thomas= D=C3=B6rfler Unsere Datenschutzerkl=C3=A4rung finden Sie hier: https://embedded-brains.de/datenschutzerklaerung/