From patchwork Fri Nov 27 22:25:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luc Van Oostenryck X-Patchwork-Id: 11937289 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5532CC3E8C5 for ; Fri, 27 Nov 2020 22:28:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0419221D46 for ; Fri, 27 Nov 2020 22:28:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="oYAq0y3Z" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730724AbgK0W1x (ORCPT ); Fri, 27 Nov 2020 17:27:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51264 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730732AbgK0W10 (ORCPT ); Fri, 27 Nov 2020 17:27:26 -0500 Received: from mail-wm1-x342.google.com (mail-wm1-x342.google.com [IPv6:2a00:1450:4864:20::342]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 91B09C0613D2 for ; Fri, 27 Nov 2020 14:27:25 -0800 (PST) Received: by mail-wm1-x342.google.com with SMTP id g25so3228808wmh.1 for ; Fri, 27 Nov 2020 14:27:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=LN6gco1zIlqtyCTgrYmmvxgCDWzIy9ZAVhewoEZKPDE=; b=oYAq0y3ZdZmjvH8LYghSQyhEd9JrjjHH3l8VB7/vpMnSpfhBMZQhOoj8K0FegoJtxB 7cwuYGmrsTwdLkHEeSoJvN1HntPhagY0OcgUChcC7LQOhcXzm6BqJgq0p/z6RY79+CIR 7vGEIiUzR5Zuc2yj7en2HEWS51sDKRoguYkHcmJVqu5YQ3dJ/ekPRDLXFQWXeTdTpris pGTubV9YAPolueIkq8g0H7/eLJFme3lJ2O5JP9EQLhBS9NDs6WJnqP5LcdfkszrFXqqf ol6d8uZ6+eVTbZErU4OpW7Nz4GjYrz6D+L+JJrfcA69LOpLrLd2InYX+1KmJVYyrw4Z5 DZfQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=LN6gco1zIlqtyCTgrYmmvxgCDWzIy9ZAVhewoEZKPDE=; b=G+VLw/qhP4jyAV+ngMrbAkpYkJypKOrzEprnD6lMc0X8fIbDVNxQl7Ut/59yZFLNDI YamubRDSGjbrPqJ8li6sM4CiQlF30pYfxDH0YvqpvKFswZMpq5TZB4CYRZsM4Epy/QBq 5vqVS0XOCcFdoH4CHZUWtYJ4P6IZKSsmyOlkdueWmTczvYwxkopK7N94w9RD1Qtay63c 6yGZhTTL2g6lyOJw8rx3PGaaF1sswWxXnMu+3aLoooc0u3HhTff0H/XO6PocM8WEULj1 eEx16PRb31Wai+a0MvVvgdARa739W3gzvNAqSEOTQRXzNCYPP5pCuqZNczbcLFQ6WXcS Lhhg== X-Gm-Message-State: AOAM532vU/Qy00eVMXQK+8G2TanqN8wU706jIKLOqu1m/DXrqiCk9rEp ZToRaERHUuqzX6R2oc6UDgZiXIHs6wg= X-Google-Smtp-Source: ABdhPJxUHNLO4hASpyBYJf6z6/EoOhsW2KcSR0wD4S4N63P/WRbAjnyF3dV5tFcpvX+9YD3Yrp7KQg== X-Received: by 2002:a1c:2605:: with SMTP id m5mr10118172wmm.111.1606516044063; Fri, 27 Nov 2020 14:27:24 -0800 (PST) Received: from localhost.localdomain ([2a02:a03f:b7fe:f700:f469:b93b:e449:cc30]) by smtp.gmail.com with ESMTPSA id q16sm17347050wrn.13.2020.11.27.14.27.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Nov 2020 14:27:23 -0800 (PST) From: Luc Van Oostenryck To: linux-sparse@vger.kernel.org Cc: Luc Van Oostenryck Subject: [PATCH 1/6] add testscases for 'bits translation' optimization Date: Fri, 27 Nov 2020 23:25:10 +0100 Message-Id: <20201127222516.44915-2-luc.vanoostenryck@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201127222516.44915-1-luc.vanoostenryck@gmail.com> References: <20201127222516.44915-1-luc.vanoostenryck@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sparse@vger.kernel.org Add some testcase related to the simplification of expressions like: if (val1 & BIT1) val2 |= BIT2; into val2 |= (val1 & BIT1) {SHL/LSR} |BIT2-BIT1|; Signed-off-by: Luc Van Oostenryck --- validation/optim/fact-select01.c | 26 ++++++++++++++++++++++++++ validation/optim/select-and-shift.c | 18 ++++++++++++++++++ 2 files changed, 44 insertions(+) create mode 100644 validation/optim/fact-select01.c create mode 100644 validation/optim/select-and-shift.c diff --git a/validation/optim/fact-select01.c b/validation/optim/fact-select01.c new file mode 100644 index 000000000000..ef4e5e89a7be --- /dev/null +++ b/validation/optim/fact-select01.c @@ -0,0 +1,26 @@ +int add_yx_y(int p, int x, int y) { return (p ? (y+x) : y) == ((p ? x : 0) + y); } +int add_xy_y(int p, int y, int x) { return (p ? (x+y) : y) == ((p ? x : 0) + y); } +int add_xy_x(int p, int x, int y) { return (p ? (x+y) : x) == ((p ? y : 0) + x); } +int add_yx_x(int p, int y, int x) { return (p ? (y+x) : x) == ((p ? y : 0) + x); } +int add_y_yx(int p, int x, int y) { return (p ? y : (y+x)) == ((p ? 0 : x) + y); } + +int ior_yx_y(int p, int x, int y) { return (p ? (y|x) : y) == ((p ? x : 0) | y); } +int ior_xy_y(int p, int y, int x) { return (p ? (x|y) : y) == ((p ? x : 0) | y); } +int ior_xy_x(int p, int x, int y) { return (p ? (x|y) : x) == ((p ? y : 0) | x); } +int ior_yx_x(int p, int y, int x) { return (p ? (y|x) : x) == ((p ? y : 0) | x); } +int ior_y_yx(int p, int x, int y) { return (p ? y : (y|x)) == ((p ? 0 : x) | y); } + +int xor_yx_y(int p, int x, int y) { return (p ? (y^x) : y) == ((p ? x : 0) ^ y); } +int xor_xy_y(int p, int y, int x) { return (p ? (x^y) : y) == ((p ? x : 0) ^ y); } +int xor_xy_x(int p, int x, int y) { return (p ? (x^y) : x) == ((p ? y : 0) ^ x); } +int xor_yx_x(int p, int y, int x) { return (p ? (y^x) : x) == ((p ? y : 0) ^ x); } +int xor_y_yx(int p, int x, int y) { return (p ? y : (y^x)) == ((p ? 0 : x) ^ y); } + +/* + * check-name: fact-select01 + * check-command: test-linearize -Wno-decl $file + * check-known-to-fail + * + * check-output-ignore + * check-output-returns: 1 + */ diff --git a/validation/optim/select-and-shift.c b/validation/optim/select-and-shift.c new file mode 100644 index 000000000000..fbe044c7cb44 --- /dev/null +++ b/validation/optim/select-and-shift.c @@ -0,0 +1,18 @@ +#define S1 2 +#define S2 5 +#define S (S2 - S1) + +#define A (1 << S1) +#define B (1 << S2) + +int foo(int p) { return ((p & A) ? B : 0) == ((((unsigned)p) & A) << S); } +int bar(int p) { return ((p & B) ? A : 0) == ((((unsigned)p) & B) >> S); } + +/* + * check-name: select-and-shift + * check-command: test-linearize -Wno-decl $file + * check-known-to-fail + * + * check-output-ignore + * check-output-returns: 1 + */