From patchwork Tue Jan 17 19:59:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adhemerval Zanella X-Patchwork-Id: 63288 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id DF7113854393 for ; Tue, 17 Jan 2023 20:01:36 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org DF7113854393 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1673985696; bh=AjKGR2n03+tuVqqBGNtzj55eB24LbWfBk9DVbP0bD/k=; h=To:Subject:Date:In-Reply-To:References:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To: From; b=IRhOGzyaRo2oKBBEfZcKisfcGZo2rWwj4o0rzTmgZ5ZUC0sEjjIzg0q07BuitA0zP s8n8Qj7Cr5IQ6GtyuoXbjiCO49+asSLftajBhUvlJJbxNp3ZyXQSl6TqI6pXBeSXV8 HshIbN/cgRYX5htag/84xXMM8ah+A0c6BHzXXJS0= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from mail-oi1-x22d.google.com (mail-oi1-x22d.google.com [IPv6:2607:f8b0:4864:20::22d]) by sourceware.org (Postfix) with ESMTPS id 522E33858D35 for ; Tue, 17 Jan 2023 20:00:23 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 522E33858D35 Received: by mail-oi1-x22d.google.com with SMTP id d188so15733079oia.3 for ; Tue, 17 Jan 2023 12:00:23 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=AjKGR2n03+tuVqqBGNtzj55eB24LbWfBk9DVbP0bD/k=; b=PTqZX3ZC8KjjixuvVT95aYnj6l1AfAB3ksT/TElsVDa71QanzbT0qC0RroYclHBxCW DdjYim5SUkTTGbfZOZxpTVBH652N+uO9VrOb8ZQpt6tlKMvcDpD3noUEiTyE7vUH9FIp ZLn621z7KOngOzeb2L/IMHTz9FJdBsGHD7bV3kB4ALxXg2G78GODs6klTCLJSmz8PNfO KJRtKeWPMcLTOmxVKXjxdfa2FP/ApMQuoGEdcuqDbOot6xMuSejex2dMsVcCqF2P01Ua FmDQ8U1LVI6UlKlsKbZAiSDYUN3ynFWvDBbwz4kz8zK8+v8LGdX8YqnhYfpqq8jh/rXa 4wtA== X-Gm-Message-State: AFqh2kqFuHJDc0YGEaxd3xyiuOV3wzCMjyOALIcykJqUPVaqG3Alqj+0 Qo2TI1XaVaA7fAGS3TPZ2onMIgD+oXbhCOo0Lo8= X-Google-Smtp-Source: AMrXdXufb+3PTRMRIf6P4nTDi9yLZwD/UsB6eJlCZdHCLfDl0V8HlaVHbhI/MNc2joAz1qkGZMAKtQ== X-Received: by 2002:aca:c189:0:b0:364:d880:a871 with SMTP id r131-20020acac189000000b00364d880a871mr1965578oif.19.1673985622532; Tue, 17 Jan 2023 12:00:22 -0800 (PST) Received: from mandiga.. ([2804:1b3:a7c1:1652:fbfc:c80a:f5e8:5ed9]) by smtp.gmail.com with ESMTPSA id l10-20020a056808020a00b00360e46a1edasm15095866oie.22.2023.01.17.12.00.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Jan 2023 12:00:21 -0800 (PST) To: libc-alpha@sourceware.org, Richard Henderson , Noah Goldstein Subject: [PATCH v9 01/22] Parameterize op_t from memcopy.h Date: Tue, 17 Jan 2023 16:59:53 -0300 Message-Id: <20230117200014.1299923-2-adhemerval.zanella@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230117200014.1299923-1-adhemerval.zanella@linaro.org> References: <20230117200014.1299923-1-adhemerval.zanella@linaro.org> MIME-Version: 1.0 X-Spam-Status: No, score=-12.1 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, KAM_SHORT, RCVD_IN_DNSWL_NONE, 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 X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Adhemerval Zanella via Libc-alpha From: Adhemerval Zanella Reply-To: Adhemerval Zanella Errors-To: libc-alpha-bounces+patchwork=sourceware.org@sourceware.org Sender: "Libc-alpha" It moves the op_t definition out to an specific header, adds the attribute 'may-alias', and cleanup its duplicated definitions. Checked with a build and check with run-built-tests=no for all major Linux ABIs. Reviewed-by: Richard Henderson --- string/memcmp.c | 1 - sysdeps/generic/memcopy.h | 6 ++---- sysdeps/generic/string-optype.h | 24 ++++++++++++++++++++++++ sysdeps/x86_64/x32/string-optype.h | 24 ++++++++++++++++++++++++ 4 files changed, 50 insertions(+), 5 deletions(-) create mode 100644 sysdeps/generic/string-optype.h create mode 100644 sysdeps/x86_64/x32/string-optype.h diff --git a/string/memcmp.c b/string/memcmp.c index 067b2e6a42..ea0fa03e1c 100644 --- a/string/memcmp.c +++ b/string/memcmp.c @@ -46,7 +46,6 @@ /* Type to use for aligned memory operations. This should normally be the biggest type supported by a single load and store. Must be an unsigned type. */ -# define op_t unsigned long int # define OPSIZ (sizeof (op_t)) /* Threshold value for when to enter the unrolled loops. */ diff --git a/sysdeps/generic/memcopy.h b/sysdeps/generic/memcopy.h index 9f3ffb5d30..b5ffa4d114 100644 --- a/sysdeps/generic/memcopy.h +++ b/sysdeps/generic/memcopy.h @@ -55,10 +55,8 @@ [I fail to understand. I feel stupid. --roland] */ -/* Type to use for aligned memory operations. - This should normally be the biggest type supported by a single load - and store. */ -#define op_t unsigned long int +/* Type to use for aligned memory operations. */ +#include #define OPSIZ (sizeof (op_t)) /* Type to use for unaligned operations. */ diff --git a/sysdeps/generic/string-optype.h b/sysdeps/generic/string-optype.h new file mode 100644 index 0000000000..42bdd2a145 --- /dev/null +++ b/sysdeps/generic/string-optype.h @@ -0,0 +1,24 @@ +/* Define a type to use for word access. Generic version. + Copyright (C) 2023 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#ifndef _STRING_OPTYPE_H +#define _STRING_OPTYPE_H 1 + +typedef unsigned long int __attribute__ ((__may_alias__)) op_t; + +#endif /* string-optype.h */ diff --git a/sysdeps/x86_64/x32/string-optype.h b/sysdeps/x86_64/x32/string-optype.h new file mode 100644 index 0000000000..e7679f934f --- /dev/null +++ b/sysdeps/x86_64/x32/string-optype.h @@ -0,0 +1,24 @@ +/* Define a type to use for word access. Generic version. + Copyright (C) 2023 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#ifndef _STRING_OPTYPE_H +#define _STRING_OPTYPE_H 1 + +typedef unsigned long long int __attribute__ ((__may_alias__)) op_t; + +#endif /* string-optype.h */