From patchwork Mon Feb 12 10:25:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Biener X-Patchwork-Id: 199636 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7300:50ea:b0:106:860b:bbdd with SMTP id r10csp2342412dyd; Mon, 12 Feb 2024 02:26:16 -0800 (PST) X-Google-Smtp-Source: AGHT+IHJCeXNsrUjSS4t8EgM+HYshQK8gtiNRwUltDRwZDHYVK2wixCABpVj2jE7Ix67rJpqyK/F X-Received: by 2002:a05:6214:f07:b0:68c:a7f6:12b2 with SMTP id gw7-20020a0562140f0700b0068ca7f612b2mr10869635qvb.8.1707733576695; Mon, 12 Feb 2024 02:26:16 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1707733576; cv=pass; d=google.com; s=arc-20160816; b=AYTllR2wMRJNvrKX2QrINOMIiOit5r7wW1bjqaabu49brIP3Fe4rQ8TiWUF5XCHupl WSmcVy071oqIEH7fAQW80A4jwsxqCuewrOr2FimlGCfRHoV4yiou24q6krt+yHGfemkJ rXhM/v5DRcVGt0LbAkNQMG/6RyFIr8DJCoiCiVk6te7f+VHzRJJcv6gIQENPkG9CM9cB O/jjH68l7WLlUriwasFpsly0uGltqZo+YTBIC6RlsHCQEM3dVVa7xnGk8a0MHf1PwgTQ DB6mZwPz5nkDb9EHgPvAK7haNR3WDbwirluZnIQsK1uEmrOW4XoqZowd4QLIsoKGdjJR b1xQ== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=message-id:errors-to:list-subscribe:list-help:list-post :list-archive:list-unsubscribe:list-id:precedence:mime-version :subject:to:from:date:dkim-signature:dkim-signature:dkim-signature :dkim-signature:arc-filter:dmarc-filter:delivered-to; bh=8AMwhyDhZL/iePf3R/BSFITjcpOCSAABfj+klzQXFTk=; fh=M4q9bXk3/V0jsEwxw9GFQW//Z0MQHGoNSe4o1QCiRTg=; b=z9we6xoddN4KjK8ZMaGDa8B/Ejvc0KgQqZxk486+iRBYa7uELK5SGOGE5mEMgD3m6z DnMbCQpi6q0Py0B/F3k8lWGvuQix814mCIPi4VWu69O2JiGh3LG2M9PHUvkGY4PzVJm0 w5A6nLBthJtfNcQktxvUj2C0ocz9xsRbkEtS74AaOlRjwFX5k/1hDHBLlwx9TgqKb6Xv 73c5SrI5Afn6o5M5zuLiJ5ILcJsGlJ7zSfoBJ9nQJIRnoZ8iQvv8f3sqmkveAGUu2tid S2jKqU9787AEGPQJcrzeoQBK9FnbrYHhNpXcxGwEQZw5TTVqgnI7zGxEw/F0GXti/pEb AiOg==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@suse.de header.s=susede2_rsa header.b=TNpd2UW2; dkim=neutral (no key) header.i=@suse.de header.s=susede2_ed25519; dkim=pass header.i=@suse.de header.s=susede2_rsa header.b=TNpd2UW2; dkim=neutral (no key) header.i=@suse.de header.s=susede2_ed25519; arc=pass (i=1); spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=suse.de X-Forwarded-Encrypted: i=2; AJvYcCWf4JphrrMES4TbKKqaSAOPSEliXqNKkDxqlOzZMeJVGim3apJR+0AP8s1qTqS0FvLndwxRckhUap13uv0Ej6fQ+HeBVw== Received: from server2.sourceware.org (server2.sourceware.org. [2620:52:3:1:0:246e:9693:128c]) by mx.google.com with ESMTPS id q11-20020a05621419eb00b0068cbfbee34esi50901qvc.294.2024.02.12.02.26.16 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Feb 2024 02:26:16 -0800 (PST) Received-SPF: pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) client-ip=2620:52:3:1:0:246e:9693:128c; Authentication-Results: mx.google.com; dkim=pass header.i=@suse.de header.s=susede2_rsa header.b=TNpd2UW2; dkim=neutral (no key) header.i=@suse.de header.s=susede2_ed25519; dkim=pass header.i=@suse.de header.s=susede2_rsa header.b=TNpd2UW2; dkim=neutral (no key) header.i=@suse.de header.s=susede2_ed25519; arc=pass (i=1); spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=suse.de Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 6917F385841C for ; Mon, 12 Feb 2024 10:26:16 +0000 (GMT) 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 [195.135.223.130]) by sourceware.org (Postfix) with ESMTPS id B566C3858D37 for ; Mon, 12 Feb 2024 10:25:39 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org B566C3858D37 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=suse.de ARC-Filter: OpenARC Filter v1.0.0 sourceware.org B566C3858D37 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=195.135.223.130 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1707733541; cv=none; b=sdgbuufRDPcWCVzNy2JHqBVGgYur6rebhxs7wZTXc2poNsqTK0cGgePK+crLO52pXH7bNGerSFj5dwqSUwwjW1fU3DzgXwqz3c0MGH3y+6vd9pliITM28cgk8Ujxu/4t28uivGHqIsjNuo4SG0dlUCAPBP3sKdkcPQPw/clvb9s= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1707733541; c=relaxed/simple; bh=686TG3k5PxXcP7HPfgVfPt/MVVfQ/wUPDAahNbFxSKs=; h=DKIM-Signature:DKIM-Signature:DKIM-Signature:DKIM-Signature:Date: From:To:Subject:MIME-Version; b=QdSir2aBlB/LPzK6rRB8ukbthL9k0ytLu8RQzKwfa+BtEIWe91/WetGZkfB8ZFpbNcDqta+ARv58dGTZAZPvHm4dpkibAvwCL4YqEefGC2OIH6i9yPIW9ql6D8xenQegp5cSB4KuE3QB+7xTqpg7nPcn9Gw1D+5m9y3egTWb5Gw= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from [10.168.4.150] (unknown [10.168.4.150]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 9CE7F21E72 for ; Mon, 12 Feb 2024 10:25:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1707733538; h=from:from:reply-to:date:date:to:to:cc:mime-version:mime-version: content-type:content-type; bh=8AMwhyDhZL/iePf3R/BSFITjcpOCSAABfj+klzQXFTk=; b=TNpd2UW23DukLsG/dQpXvzfDJEOK1dysczjCwUkk4XZYm2nLoBPfEQE/fAq8g28sFWr455 9lY7rlY3+kXArhsNfii69Fw/PSauNtCk/tS9afdnX3FQE+83pXRPtXGE/CgPFYdggv374o pHbE1Md73oNHKg1Tumq+n0Ih+TxdOVY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1707733538; h=from:from:reply-to:date:date:to:to:cc:mime-version:mime-version: content-type:content-type; bh=8AMwhyDhZL/iePf3R/BSFITjcpOCSAABfj+klzQXFTk=; b=4etijzQvyFM4Xt4Jh+qikYaxgjgrJMYHWMVcUEkG2dd7VNx8c75Sq52rzwnJa/lkOXQ9p0 xJjqfQRs7cjUy5Ag== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1707733538; h=from:from:reply-to:date:date:to:to:cc:mime-version:mime-version: content-type:content-type; bh=8AMwhyDhZL/iePf3R/BSFITjcpOCSAABfj+klzQXFTk=; b=TNpd2UW23DukLsG/dQpXvzfDJEOK1dysczjCwUkk4XZYm2nLoBPfEQE/fAq8g28sFWr455 9lY7rlY3+kXArhsNfii69Fw/PSauNtCk/tS9afdnX3FQE+83pXRPtXGE/CgPFYdggv374o pHbE1Md73oNHKg1Tumq+n0Ih+TxdOVY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1707733538; h=from:from:reply-to:date:date:to:to:cc:mime-version:mime-version: content-type:content-type; bh=8AMwhyDhZL/iePf3R/BSFITjcpOCSAABfj+klzQXFTk=; b=4etijzQvyFM4Xt4Jh+qikYaxgjgrJMYHWMVcUEkG2dd7VNx8c75Sq52rzwnJa/lkOXQ9p0 xJjqfQRs7cjUy5Ag== Date: Mon, 12 Feb 2024 11:25:38 +0100 (CET) From: Richard Biener To: gcc-patches@gcc.gnu.org Subject: [PATCH] tree-optimization/113863 - elide degenerate virtual PHIs when moving ee stores MIME-Version: 1.0 Authentication-Results: smtp-out1.suse.de; none X-Spamd-Result: default: False [-0.60 / 50.00]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; TO_DN_NONE(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; MISSING_MID(2.50)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FUZZY_BLOCKED(0.00)[rspamd.com]; RCVD_COUNT_ZERO(0.00)[0]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; BAYES_HAM(-3.00)[100.00%] X-Spam-Level: X-Spam-Score: -0.60 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: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Message-Id: <20240212102616.6917F385841C@sourceware.org> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1790688442397141180 X-GMAIL-MSGID: 1790688442397141180 This makes sure to elide degenerate virtual PHIs when moving stores across early exits. Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed. Richard. PR tree-optimization/113863 * tree-vect-data-refs.cc (vect_analyze_early_break_dependences): Record crossed virtual PHIs. * tree-vect-loop.cc (move_early_exit_stmts): Elide crossed virtual PHIs. * gcc.dg/vect/pr113863.c: New testcase. --- gcc/testsuite/gcc.dg/vect/pr113863.c | 17 +++++++++++++++++ gcc/tree-vect-data-refs.cc | 4 ++++ gcc/tree-vect-loop.cc | 19 +++++++++++++++++++ 3 files changed, 40 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/vect/pr113863.c diff --git a/gcc/testsuite/gcc.dg/vect/pr113863.c b/gcc/testsuite/gcc.dg/vect/pr113863.c new file mode 100644 index 00000000000..ffe7602a846 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/pr113863.c @@ -0,0 +1,17 @@ +/* { dg-do compile } */ +/* { dg-add-options vect_early_break } */ +/* { dg-additional-options "-O3" } */ + +void test_sort_helper(int *); +int test_sort_driver_driver_real_last; +void test_sort_driver_driver(int start, int *e, int *f) +{ + for (int *l = e; l > f;) + { + *--l = start; + if (f == l) + test_sort_helper(&test_sort_driver_driver_real_last); + if (start) + test_sort_driver_driver(start - 1, e, f); + } +} diff --git a/gcc/tree-vect-data-refs.cc b/gcc/tree-vect-data-refs.cc index 2170d17e839..c531079d3bb 100644 --- a/gcc/tree-vect-data-refs.cc +++ b/gcc/tree-vect-data-refs.cc @@ -812,6 +812,10 @@ vect_analyze_early_break_dependences (loop_vec_info loop_vinfo) break; } + /* If we possibly sink through a virtual PHI make sure to elide that. */ + if (gphi *vphi = get_virtual_phi (bb)) + LOOP_VINFO_EARLY_BRK_STORES (loop_vinfo).safe_push (vphi); + /* All earlier blocks need dependence checking. */ check_deps = true; bb = single_pred (bb); diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc index eed2268e9ba..04f4b5b6b2f 100644 --- a/gcc/tree-vect-loop.cc +++ b/gcc/tree-vect-loop.cc @@ -11789,6 +11789,25 @@ move_early_exit_stmts (loop_vec_info loop_vinfo) for (gimple *stmt : LOOP_VINFO_EARLY_BRK_STORES (loop_vinfo)) { + /* We have to update crossed degenerate virtual PHIs. Simply + elide them. */ + if (gphi *vphi = dyn_cast (stmt)) + { + tree vdef = gimple_phi_result (vphi); + tree vuse = gimple_phi_arg_def (vphi, 0); + imm_use_iterator iter; + use_operand_p use_p; + gimple *use_stmt; + FOR_EACH_IMM_USE_STMT (use_stmt, iter, vdef) + { + FOR_EACH_IMM_USE_ON_STMT (use_p, iter) + SET_USE (use_p, vuse); + } + auto gsi = gsi_for_stmt (stmt); + remove_phi_node (&gsi, true); + continue; + } + /* Check to see if statement is still required for vect or has been elided. */ auto stmt_info = loop_vinfo->lookup_stmt (stmt);