From patchwork Fri Aug 19 07:42:30 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Biener X-Patchwork-Id: 660764 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3sFw1C2cfqz9sDk for ; Fri, 19 Aug 2016 17:42:54 +1000 (AEST) Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org header.b=f90s+M3T; dkim-atps=neutral DomainKey-Signature: a=rsa-sha1; c=nofws; d=gcc.gnu.org; h=list-id :list-unsubscribe:list-archive:list-post:list-help:sender:date :from:to:subject:message-id:mime-version:content-type; q=dns; s= default; b=R4rRAQWEfJ3F0CzOTuwY08d51wUHWyKieb8YSFuARXCNhrRCkkHh1 P9nWbllG+mniKPRsLADjKrstKcS6Kfhmwx9kHu3hQ+saf+yvmJGuPqnCJCIM3l1R vvNDuLaBj5mVK1klkpKRuj+Q2MRKk+3hXDNU3EVXZyk2Hxle76Usfc= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=gcc.gnu.org; h=list-id :list-unsubscribe:list-archive:list-post:list-help:sender:date :from:to:subject:message-id:mime-version:content-type; s= default; bh=Ut3HfAMJgOYq5nZ6h8TA5yWcxf8=; b=f90s+M3TFB/GGbCfp4hM h4bJPkgE6pEP+1hhgbF0lRqguMao+4jfY85cMZX73kWkxrR5ESGs4IOc2kYsDI0u KCK5eNtla6cfGk2ZvxORkuFrkVW2ePZY6jmd7Yv2gsR8Bn+/S7O+ljsqx1+yMwkI k/g3riEbK/BsB5wVNogufyA= Received: (qmail 32346 invoked by alias); 19 Aug 2016 07:42:44 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Delivered-To: mailing list gcc-patches@gcc.gnu.org Received: (qmail 32333 invoked by uid 89); 19 Aug 2016 07:42:43 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.4 required=5.0 tests=BAYES_00, RP_MATCHES_RCVD, SPF_PASS autolearn=ham version=3.3.2 spammy= X-HELO: mx2.suse.de Received: from mx2.suse.de (HELO mx2.suse.de) (195.135.220.15) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Fri, 19 Aug 2016 07:42:33 +0000 Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 74FD9AAAD for ; Fri, 19 Aug 2016 07:42:31 +0000 (UTC) Date: Fri, 19 Aug 2016 09:42:30 +0200 (CEST) From: Richard Biener To: gcc-patches@gcc.gnu.org Subject: [PATCH] Fix PR77290 Message-ID: User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 This fixes PR77290 - my previous patch to PRE to limit insertion for flag_tree_parallelize_loops != 0 was confused because flag_tree_parallelize_loops is the number of threads to parallelize for (thus == 1 is the default and to not parallelize). Fixed as obvious. Richard. 2016-08-19 Richard Biener PR tree-optimization/77290 * tree-ssa-pre.c (eliminate_dom_walker::before_dom_children): Fix flag_tree_parallelize_loops check. Index: gcc/tree-ssa-pre.c =================================================================== --- gcc/tree-ssa-pre.c (revision 239606) +++ gcc/tree-ssa-pre.c (working copy) @@ -4270,7 +4270,7 @@ eliminate_dom_walker::before_dom_childre if (sprime && TREE_CODE (sprime) == SSA_NAME && do_pre - && (flag_tree_loop_vectorize || flag_tree_parallelize_loops) + && (flag_tree_loop_vectorize || flag_tree_parallelize_loops > 1) && loop_outer (b->loop_father) && has_zero_uses (sprime) && bitmap_bit_p (inserted_exprs, SSA_NAME_VERSION (sprime))