From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=suse.de 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) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1687347082; h=from:from:reply-to:date:date:to:to:cc:mime-version:mime-version: content-type:content-type; bh=eUQkMtbRPAu87rOEzoAtnp+b0lHADRw/teW18uh7YTg=; b=UmtxAJNYgQJ62slGgW/4T4Uo32TYuKkdYUXTCyXjAuJqGTztwplwDX+Vy1QiEj4qG+WkWZ 6pfBAaUCbqJ7fZaj8OaWJpOZKPBG0Kl0eXASjHczNFiUSJDfK7g+HL3kJwHs5I8Z4Ijzw5 35FbH8ZQZ7mZ7yqyygNfOIYebkbVdSI= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1687347082; h=from:from:reply-to:date:date:to:to:cc:mime-version:mime-version: content-type:content-type; bh=eUQkMtbRPAu87rOEzoAtnp+b0lHADRw/teW18uh7YTg=; b=IsbPBEkZ2mPtvOzss5oNv1NcuaCIQa2z+79SpYXUZuzhRGFwzgTa8gvEl3hfPx19fmY1cT EwsU8DjR3VHz7/Cw== 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) From: Richard Biener 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 Content-Type: text/plain; charset=US-ASCII 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 List-Id: Message-ID: <20230621113121.tQeFY15laAUt4suvqaQZWsFLMT_c5uqIVe-M7jwSXSI@z> 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); } -- 2.35.3