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[8.43.85.97]) by mx.google.com with ESMTPS id f5-20020a05640214c500b0050839ce3129si1342435edx.338.2023.04.20.02.24.37 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 Apr 2023 02:24:37 -0700 (PDT) Received-SPF: pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 as permitted sender) client-ip=8.43.85.97; Authentication-Results: mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=nnbSrTAO; spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gnu.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id CB21A3856965 for ; Thu, 20 Apr 2023 09:23:56 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org CB21A3856965 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1681982636; bh=rguo9XmsSjsy9QM/uVI36CJz8PV5KOsDv9q3PolbeJ8=; h=Date:To:Subject:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:From; b=nnbSrTAOMHvgtQ5qzCBSixu6dhmeMq5c23m/jNzBZs4IHrL4MirppF6U1m0w67pse YEHo4wItG0qGhHQLSb85Xj8DPEHp9TMnOL7Uhbn0WcqZHtNI4xWl1o44k+IaLZ3Gt9 VJ8GRBm9yFZ8t/YohPjQioh6KakK8i423d7GQ504= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2001:67c:2178:6::1c]) by sourceware.org (Postfix) with ESMTPS id 6FD0D3857020 for ; Thu, 20 Apr 2023 09:23:13 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 6FD0D3857020 Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 9E6F721887 for ; Thu, 20 Apr 2023 09:23:12 +0000 (UTC) Received: from wotan.suse.de (wotan.suse.de [10.160.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by relay2.suse.de (Postfix) with ESMTPS id 93ABA2C143 for ; Thu, 20 Apr 2023 09:23:12 +0000 (UTC) Date: Thu, 20 Apr 2023 09:23:12 +0000 (UTC) To: gcc-patches@gcc.gnu.org Subject: [PATCH] Remove duplicate DFS walks from DF init User-Agent: Alpine 2.22 (LSU 394 2020-01-19) MIME-Version: 1.0 X-Spam-Status: No, score=-10.6 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, MISSING_MID, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE 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: 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: Richard Biener via Gcc-patches From: Richard Biener Reply-To: Richard Biener Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Sender: "Gcc-patches" Message-Id: <20230420092356.CB21A3856965@sourceware.org> X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1763686667571049761?= X-GMAIL-MSGID: =?utf-8?q?1763686667571049761?= The following removes unused CFG order computes from rest_of_handle_df_initialize. The CFG orders are computed from df_analyze (). This also removes code duplication that would have to be kept in sync. Bootstrapped and tested on x86_64-unknown-linux-gnu for all languages, pushed. * df-core.cc (rest_of_handle_df_initialize): Remove computation of df->postorder, df->postorder_inverted and df->n_blocks. --- gcc/df-core.cc | 5 ----- 1 file changed, 5 deletions(-) diff --git a/gcc/df-core.cc b/gcc/df-core.cc index 3286ffda2ce..de5cbd0c622 100644 --- a/gcc/df-core.cc +++ b/gcc/df-core.cc @@ -701,11 +701,6 @@ rest_of_handle_df_initialize (void) if (optimize > 1) df_live_add_problem (); - df->postorder = XNEWVEC (int, last_basic_block_for_fn (cfun)); - df->n_blocks = post_order_compute (df->postorder, true, true); - inverted_post_order_compute (&df->postorder_inverted); - gcc_assert ((unsigned) df->n_blocks == df->postorder_inverted.length ()); - df->hard_regs_live_count = XCNEWVEC (unsigned int, FIRST_PSEUDO_REGISTER); df_hard_reg_init ();