From patchwork Tue Oct 19 04:54:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Li, Pan2 via Gcc-patches" X-Patchwork-Id: 46370 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 B13033858437 for ; Tue, 19 Oct 2021 04:54:40 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B13033858437 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1634619280; bh=5lFYCcKHTA+a+i52SLe9or3+jHFcjH4F7zb+oz9KWag=; h=To:Subject:Date:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:Cc:From; b=eacQI1+jOa8QcN/agTzRb1EwBwFSn2bg8fIhMuXy494JnqvdciOYeRUxE84J39rfS 9L1E4Yn6xq2KFKgHxq9nJHf/uKQkbCZ4MFQaJz8Q6YlhGOlLwp/qk1f6796yzkVpBQ MhtEG7W0uE+gTeF+cX7VWJ2mMEwpO2dnaUYhoOFU= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) by sourceware.org (Postfix) with ESMTPS id 8E4E43858404 for ; Tue, 19 Oct 2021 04:54:11 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 8E4E43858404 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 19J2rhHt009720 for ; Mon, 18 Oct 2021 21:54:10 -0700 Received: from dc5-exch02.marvell.com ([199.233.59.182]) by mx0a-0016f401.pphosted.com with ESMTP id 3bsnmq0chy-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT) for ; Mon, 18 Oct 2021 21:54:10 -0700 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server (TLS) id 15.0.1497.18; Mon, 18 Oct 2021 21:54:09 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.18 via Frontend Transport; Mon, 18 Oct 2021 21:54:09 -0700 Received: from linux.wrightpinski.org.com (unknown [10.69.242.198]) by maili.marvell.com (Postfix) with ESMTP id E3EDA3F7083; Mon, 18 Oct 2021 21:54:08 -0700 (PDT) To: Subject: [PATCH 0/4] Fix PR tree-opt/102703 Date: Mon, 18 Oct 2021 21:54:00 -0700 Message-ID: <1634619244-18969-1-git-send-email-apinski@marvell.com> X-Mailer: git-send-email 1.8.3.1 MIME-Version: 1.0 X-Proofpoint-GUID: R7nCQwDFBFFNk4q4VNI8dFK_qBU3cecx X-Proofpoint-ORIG-GUID: R7nCQwDFBFFNk4q4VNI8dFK_qBU3cecx X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.0.607.475 definitions=2021-10-18_07,2021-10-18_01,2020-04-07_01 X-Spam-Status: No, score=-8.5 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, KAM_NUMSUBJECT, RCVD_IN_DNSWL_LOW, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: apinski--- via Gcc-patches From: "Li, Pan2 via Gcc-patches" Reply-To: apinski@marvell.com Cc: Andrew Pinski Errors-To: gcc-patches-bounces+patchwork=sourceware.org@gcc.gnu.org Sender: "Gcc-patches" From: Andrew Pinski This patch series fixes PR tree-opt/102703 by improving the code which will delete write only stores to also delete the phi node (if it was a phi node) that was used to define the write. We need to some factoring out of the code to make it easier to understand and less indention. Andrew Pinski (4): Add dump prints when execute_fixup_cfg removes a write only var store. Remove outdated comment about execute_fixup_cfg Factor out removal of write only stores from execute_fixup_cfg Improve maybe_remove_writeonly_store to do a simple DCE for defining statement gcc/tree-cfg.c | 95 ++++++++++++++++++++++++++++++++++++++------------ 1 file changed, 73 insertions(+), 22 deletions(-)