From patchwork Tue Aug 13 16:44:53 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Makarov X-Patchwork-Id: 266893 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 AFC6D2C014F for ; Wed, 14 Aug 2013 02:45:05 +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 :message-id:date:from:mime-version:to:subject:content-type; q= dns; s=default; b=SjYIaTquE4Vjfx13tzWYcpCly3KQCdbfIkicBX1ny3fz+g u8EzQjgGdnAzFrcZoQAhcxMjdBlwAodNnlgJOCFkMr4wiUZ/CRwVqkI//mDNhpoZ 3MZnEYz9SqzHP59Fn5x/jDgKt7mBISQLmDXR4YYtrrwGLDRI436BUxFGphjRE= 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 :message-id:date:from:mime-version:to:subject:content-type; s= default; bh=zuGIwMuU1shNDaJz8n3U0Jkni1M=; b=lhTdATvSjEa3OTqQwKhh 033cVfM7D5MBX+ZPwNe3aQ/6Yx/9w/nDjnXWaRMw5P9SlK1QINDmUVQDluxH8rqo Oqa4PCpLV3XisgflYSGHW5VfBk89I44YiZIogvY0hJu2efl54ycIJ6/ArD4AZ/MX 1vNkKoz8eXPiUrTMTkxj9FU= Received: (qmail 13012 invoked by alias); 13 Aug 2013 16:44:58 -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 12985 invoked by uid 89); 13 Aug 2013 16:44:58 -0000 X-Spam-SWARE-Status: No, score=-7.9 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=3.3.2 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; Tue, 13 Aug 2013 16:44:57 +0000 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id r7DGisj1012337 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Tue, 13 Aug 2013 12:44:55 -0400 Received: from Mair.local (vpn-48-148.rdu2.redhat.com [10.10.48.148]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id r7DGir6s010052 for ; Tue, 13 Aug 2013 12:44:54 -0400 Message-ID: <520A6285.7000501@redhat.com> Date: Tue, 13 Aug 2013 12:44:53 -0400 From: Vladimir Makarov User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:17.0) Gecko/20130801 Thunderbird/17.0.8 MIME-Version: 1.0 To: GCC Patches Subject: backported patch for PR57459 into gcc-4_8-branch X-Virus-Found: No The following patch has been backported into gcc-4_8-branch. The patch was successfully tested and bootstrapped on x86/x86-64. Committed as rev. 201695. 2013-08-13 Vladimir Makarov Backport from mainline 2013-06-06 Vladimir Makarov PR rtl-optimization/57459 * lra-constraints.c (update_ebb_live_info): Fix typo for operand type when setting live regs. 2013-08-13 Vladimir Makarov Backport from mainline 2013-06-06 Vladimir Makarov PR rtl-optimization/57459 * gcc.target/i386/pr57459.c: New test. Index: gcc/lra-constraints.c =================================================================== --- gcc/lra-constraints.c (revision 201689) +++ gcc/lra-constraints.c (working copy) @@ -4396,7 +4396,7 @@ update_ebb_live_info (rtx head, rtx tail bitmap_clear_bit (&live_regs, reg->regno); /* Mark each used value as live. */ for (reg = curr_id->regs; reg != NULL; reg = reg->next) - if (reg->type == OP_IN + if (reg->type != OP_OUT && bitmap_bit_p (&check_only_regs, reg->regno)) bitmap_set_bit (&live_regs, reg->regno); /* It is quite important to remove dead move insns because it Index: gcc/testsuite/gcc.target/i386/pr57459.c =================================================================== --- gcc/testsuite/gcc.target/i386/pr57459.c (revision 0) +++ gcc/testsuite/gcc.target/i386/pr57459.c (working copy) @@ -0,0 +1,60 @@ +/* PR rtl-optimization/57459 */ +/* { dg-do run } */ +/* { dg-options "-fno-inline -O2 -minline-all-stringops -fno-omit-frame-pointer" } */ + +int total1[10], total2[10], total3[10], total4[10], total5[10], a[20]; +int len; + +void stackclean() { + void *ptr = __builtin_alloca(20000); + __builtin_memset(ptr, 0, 20000); +} + +void foo(const char *s) { + int r1 = a[1]; + int r2 = a[2]; + int r3 = a[3]; + int r4 = a[4]; + int r5 = a[5]; + + len = __builtin_strlen(s); + + if (s != 0) + return; + + while (r1) { + total1[r1] = r1; + r1--; + } + + while (r2) { + total2[r2] = r2; + r2--; + } + + while (r3) { + total3[r3] = r3; + r3--; + } + + while (r4) { + total4[r4] = r4; + r4--; + } + + while (r5) { + total5[r5] = r5; + r5--; + } +} + +extern void abort (void); + +int main() { + stackclean(); + foo("abcdefgh"); + if (len != 8) + abort (); + return 0; +} +