From patchwork Wed Jun 21 11:31:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Biener X-Patchwork-Id: 110989 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp4291603vqr; Wed, 21 Jun 2023 04:32:39 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ4odlw+forXtmlhoTMaIrsbKSl0ytcU0ne5XaV/aMmKH4z7nSPZf6QVInSh9ngPu6MLtbdi X-Received: by 2002:a17:907:980c:b0:988:c24d:3d33 with SMTP id ji12-20020a170907980c00b00988c24d3d33mr6355547ejc.12.1687347159830; Wed, 21 Jun 2023 04:32:39 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1687347159; cv=none; d=google.com; s=arc-20160816; b=dOoOClm4wVvYU6AbMppyclGd4Vn94i7KHhlYl57yj41zydU81UsaTaeCY39hEe8P6g UOoiSrVBE5sRaBvvEfAPb98NEPANQFXFe+iEfqd0Gl4Bi811GCN/ofqqvsHTCh45GIsF d9BtHy5Cst94L6Pfx81n/f4s8nOZsIMWdsvgYYmxREilyr/Z67Fn220EhUU04jQP2KYS wKSsLq10STzTOiyJF4pKEutCVSKYi1C6F7Zh1QJ6OqbaQC7UF6vcW8id8X9c30Shq8Q5 McX/95I1R7D1BOUigEzWSV+Z2idu4OUGGAcLGKkCjZaLMRAZunJuwb47E/ocTFTWcf+x O26A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=message-id:sender:errors-to:reply-to:from:list-subscribe:list-help :list-post:list-archive:list-unsubscribe:list-id:precedence :mime-version:user-agent:subject:to:date:dmarc-filter:delivered-to :dkim-signature:dkim-filter; bh=eUQkMtbRPAu87rOEzoAtnp+b0lHADRw/teW18uh7YTg=; b=zoo1GjAkyxuAQNQ/W/ZV2p11uI/ZUlxcu0U+d/nxRAIemqzwmKChETSFUKuSnxIGL1 GyPMRwiHpqclK/fn0PGsRzZo5tia03jlGLeCsceq4oEUl/Kf+nB5PAyxGJOjw6yyoplG LJT17PvxsknRRwXMqSZuR0FZYyOCW+fqzB1j65bODa0oXKeOHzPaUpU2Nr+zOwwg1viq SkHRQjoXmccL46mwAEDIBy97YUQkYE2U87mKHBpN07PxouCC/Dr2ifLrcw5cs0AAkA/Z IjwGE3wyoeSHszPg+zxeGC8aQQePYfOQoAVMigW1VrRt/4gEa0IBEDytEnrsMoGEPTlN AaPQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=RddXkNzb; 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 sourceware.org (ip-8-43-85-97.sourceware.org. [8.43.85.97]) by mx.google.com with ESMTPS id q5-20020a1709060f8500b009890b54bf30si513243ejj.43.2023.06.21.04.32.39 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Jun 2023 04:32:39 -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=RddXkNzb; 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 3F9773856973 for ; Wed, 21 Jun 2023 11:32:06 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 3F9773856973 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1687347126; bh=eUQkMtbRPAu87rOEzoAtnp+b0lHADRw/teW18uh7YTg=; h=Date:To:Subject:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:From; b=RddXkNzbrDENqgIqKAc+HbDsr6I5RVhPsL3emmVTo1DqBqyV0XUwVXknFwAlz/3U1 crXqFdcyIVRtgPqCd+fm7aYtztqxPWHcnehJbEqQhmvZcYJL9BnJ6+MtA0z3Z3HlYR jpkECkETmfFyC6EpBzzJZ3qT2X/1nIyNrcPQvLSw= 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 [195.135.220.28]) by sourceware.org (Postfix) with ESMTPS id D3CCA3858033 for ; Wed, 21 Jun 2023 11:31:22 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org D3CCA3858033 Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 1275E21BE2 for ; Wed, 21 Jun 2023 11:31:22 +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 05F8F2C141 for ; Wed, 21 Jun 2023 11:31:22 +0000 (UTC) Date: Wed, 21 Jun 2023 11:31:21 +0000 (UTC) To: gcc-patches@gcc.gnu.org Subject: [PATCH 3/3] Less strip_offset in IVOPTs User-Agent: Alpine 2.22 (LSU 394 2020-01-19) MIME-Version: 1.0 X-Spam-Status: No, score=-10.5 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: <20230621113206.3F9773856973@sourceware.org> X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1769311716272558746?= X-GMAIL-MSGID: =?utf-8?q?1769311735274122528?= This avoids one strip_offset use in add_iv_candidate_for_use where we know it operates on a sizetype quantity. Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed. * tree-ssa-loop-ivopts.cc (add_iv_candidate_for_use): Use split_constant_offset for the POINTER_PLUS_EXPR case. --- gcc/tree-ssa-loop-ivopts.cc | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/gcc/tree-ssa-loop-ivopts.cc b/gcc/tree-ssa-loop-ivopts.cc index 65caf382bba..03161813e0a 100644 --- a/gcc/tree-ssa-loop-ivopts.cc +++ b/gcc/tree-ssa-loop-ivopts.cc @@ -3588,8 +3588,9 @@ add_iv_candidate_for_use (struct ivopts_data *data, struct iv_use *use) step = fold_convert (sizetype, step); record_common_cand (data, base, step, use); /* Also record common candidate with offset stripped. */ - tree alt_base = strip_offset (base); - if (alt_base != base) + tree alt_base, alt_offset; + split_constant_offset (base, &alt_base, &alt_offset); + if (!integer_zerop (alt_offset)) record_common_cand (data, alt_base, step, use); }