From patchwork Fri May 31 10:50:28 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Polacek X-Patchwork-Id: 247916 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 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "localhost", Issuer "www.qmailtoaster.com" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 76B692C0338 for ; Fri, 31 May 2013 20:50:42 +1000 (EST) 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:cc:subject:message-id:mime-version:content-type; q=dns; s=default; b=nT3Mr4XoJCHitXzrZWyZPv+2Qc1xmQaUXImmAK/h41OxIDE9UG I0tGR5iOUC3d9rM5quFy7C5lERxirOF3dLVpamZ1je51KFq8BUF/0fvosWHMOsa4 bOjYHHqxGZLO3M7WGivsox3bZ1qKcQ182xugGzSimYLdE5EWvAwWdxlco= 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:cc:subject:message-id:mime-version:content-type; s= default; bh=SLN7lGx2A9P7qBaC3yQNZPn5bOs=; b=HOnZUNGusCZSPEUD9X+d c1ypGMJXFzf4RamVZyiirCL2yV6C0KbFB/ksAHvd3AkJF9lhPEA4AVz13x7IoAVu U03wIMKx992JkRQC/ABYlX34PJvC/uIvmENMp9AV4X7FCv6GwgWIwPoIax+DSJ62 vzKtmEkacpPX6go3LY/urmA= Received: (qmail 5319 invoked by alias); 31 May 2013 10:50:36 -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 5304 invoked by uid 89); 31 May 2013 10:50:34 -0000 X-Spam-SWARE-Status: No, score=-6.9 required=5.0 tests=AWL, BAYES_00, RCVD_IN_HOSTKARMA_W, RCVD_IN_HOSTKARMA_WL, RP_MATCHES_RCVD, SPF_HELO_PASS, SPF_PASS autolearn=ham version=3.3.1 Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.84/v0.84-167-ge50287c) with ESMTP; Fri, 31 May 2013 10:50:34 +0000 Received: from int-mx12.intmail.prod.int.phx2.redhat.com (int-mx12.intmail.prod.int.phx2.redhat.com [10.5.11.25]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id r4VAoWl0009081 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 31 May 2013 06:50:32 -0400 Received: from redhat.com (ovpn-116-32.ams2.redhat.com [10.36.116.32]) by int-mx12.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id r4VAoS2M029318 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Fri, 31 May 2013 06:50:31 -0400 Date: Fri, 31 May 2013 12:50:28 +0200 From: Marek Polacek To: GCC Patches Cc: Richard Biener Subject: [PATCH] Add testcase for PR57478 Message-ID: <20130531105028.GA4160@redhat.com> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-06-14) This adds a reduced testcase for PR57478. Regtested on x86_64-linux. Ok for trunk? 2013-05-31 Marek Polacek PR tree-optimization/57478 PR tree-optimization/57453 * gcc.dg/torture/pr57478.c: New test. Marek --- gcc/testsuite/gcc.dg/torture/pr57478.c.mp2 2013-05-31 11:31:27.179683480 +0200 +++ gcc/testsuite/gcc.dg/torture/pr57478.c 2013-05-31 11:31:50.239753729 +0200 @@ -0,0 +1,21 @@ +/* { dg-do compile } */ + +typedef struct Node Node; + +struct Node +{ + Node *Pred, *Suc; + Node *SubBestPred; + Node *SubBestSuc; +}; + +void +foo (Node *N) +{ + do + { + N->SubBestPred = N->Pred; + N->SubBestSuc = N->Suc; + } + while (N = N->Suc); +}