From patchwork Sat Apr 10 22:30:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luc Van Oostenryck X-Patchwork-Id: 12195957 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=-10.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,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 3E465C433B4 for ; Sat, 10 Apr 2021 22:30:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F09C761027 for ; Sat, 10 Apr 2021 22:30:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235100AbhDJWbN (ORCPT ); Sat, 10 Apr 2021 18:31:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46504 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232659AbhDJWbM (ORCPT ); Sat, 10 Apr 2021 18:31:12 -0400 Received: from mail-ed1-x52d.google.com (mail-ed1-x52d.google.com [IPv6:2a00:1450:4864:20::52d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 76770C06138A for ; Sat, 10 Apr 2021 15:30:57 -0700 (PDT) Received: by mail-ed1-x52d.google.com with SMTP id e7so10607008edu.10 for ; Sat, 10 Apr 2021 15:30:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=XSOGM+3xs/3F3ITRMFqUYZnknGrTu1A8SQ75eFql5Jg=; b=SgHtSnLRYOZGvdB8F+P2f4hyO78uEG3oZEeyeRiQzK7Q2Pdu2MyxN4i4+1jiqm86XJ BkgFspHbzJVIfoCG1G0raPbmde05l0xisSHcf/jptWPNrrlo4wZ1xbW4TBAXxs/CD1fO Zu286lML2dVCS+s7meEh8wMcM23aY+7vpoqrBT/Yw5KW/WsXmpT8EIp3RuwargGPJUBm ush0A38Stjk5UL2iuqiEyOnw7R2562aKcbP8h4Y/+VFQkN7q881WEyrQ9gPGInYqYvYP Ub9ElI7HZfYAi9KRs8C8fTBIJQN9IodErbYguOqVEU1uae728glG7N6h5ZGSgjlMTdpb c5mg== 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:mime-version :content-transfer-encoding; bh=XSOGM+3xs/3F3ITRMFqUYZnknGrTu1A8SQ75eFql5Jg=; b=aDBNBPKkjE2IUPKb9x5tYjDnfUr6tC/3XV7PX2clcgQLkb6RiB/MVn2KuiLfyfkFVp QQ7zeWBsksnAzaAHc8tvIKULCkX+CskT83bp1bT74xVjvyvVMUTkTZPq6JLZl4sx2zpp sJpzeZNT/DQvc7tMBMCwDGqKvsYcHEtpHtMmAev6pJGxt4xoY6wW8DUBt6hEkNxN6uIG kOh9inbFeSCNIvZveigmWN8utAJjza/x7mKqo8IviV/mRrw/fQzCa90hCafQ08+DIvTV sZztta+xxNO42tt3GNpXIVQ5i7ufumOsF3UvGAYzbTLcxyFUsymuZXpfvVbJXXZea9H4 yCFQ== X-Gm-Message-State: AOAM530nnkpJXSGI+/H4H7zeNxEEQqe284bArpYF8Fd+l8OwJAT4vcxH Vj8S3naZcswvqMa465nxw12oc5deDf8= X-Google-Smtp-Source: ABdhPJzl1pKF02GghRpIZtkisxh0EETrwqYd2YJUMElauLQQDrt3V4AHEXrfETpgIiMTWMOy30Mr4Q== X-Received: by 2002:a05:6402:42d1:: with SMTP id i17mr22483672edc.131.1618093856083; Sat, 10 Apr 2021 15:30:56 -0700 (PDT) Received: from localhost.localdomain ([2a02:a03f:b7fe:f700:9597:4a1:b5b6:4666]) by smtp.gmail.com with ESMTPSA id q18sm3701372edr.26.2021.04.10.15.30.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 10 Apr 2021 15:30:55 -0700 (PDT) From: Luc Van Oostenryck To: linux-sparse@vger.kernel.org Cc: Luc Van Oostenryck Subject: [PATCH 0/5] kill more dead stores Date: Sun, 11 Apr 2021 00:30:39 +0200 Message-Id: <20210410223044.86100-1-luc.vanoostenryck@gmail.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sparse@vger.kernel.org This series improv the removal of dead stores: * kill deadstores in parent-child bascx blocks * kill redundant in the same basic block Luc Van Oostenryck (5): add testcases for stores simplifications extract try_to_kill_store() from kill_dominated_stores() volatile stores are never dead kill parent's dead stores too kill redundant stores (local) memops.c | 53 ++++++++++++++++----- validation/memops/kill-dead-store-parent0.c | 14 ++++++ validation/memops/kill-dead-store-parent2.c | 25 ++++++++++ validation/memops/kill-redundant-store0.c | 13 +++++ 4 files changed, 94 insertions(+), 11 deletions(-) create mode 100644 validation/memops/kill-dead-store-parent0.c create mode 100644 validation/memops/kill-dead-store-parent2.c create mode 100644 validation/memops/kill-redundant-store0.c base-commit: d549d4d55eecb394e3f69314287f91e85b19e3e3