From patchwork Fri Apr 25 13:40:58 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Sandiford X-Patchwork-Id: 342838 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 3B99C140166 for ; Fri, 25 Apr 2014 23:41:10 +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:from :to:cc:subject:date:message-id:mime-version:content-type; q=dns; s=default; b=Vzk2bwC7A+okqU7+eWiYIoH+jn5yEbwtJUAeIoExE9W2S0JCeI +/LmpEUIQkg8Nk8pYrqniwFqD1MNbxkBlMKll+R1er6xGJv+JIuoL3ay18JxzPIM CGtGMIxrGc2U/kHJKbxTBnpyTclp5PsRD7vp1VRUTk4dp1earEB0rCWkc= 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:from :to:cc:subject:date:message-id:mime-version:content-type; s= default; bh=GmzKBdXCoASrCQGNf5AJrvOm544=; b=gbAJuvmxQfks6i5o/gKs GxOL/P5KBheEXVGeCJQoNxJSE1DJzl1fHjBFb505S/mzKp5ijmJ4kdLcee3N9g4r cXEkdQ3bByMkiv7mBLcCOl/LkOdpuzmXobVkOiueQyWkBAXZef7VWyiUH/cNjbrm Uv/g9igKFO6dmTTji8W/6DA= Received: (qmail 15503 invoked by alias); 25 Apr 2014 13:41:04 -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 15491 invoked by uid 89); 25 Apr 2014 13:41:03 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.2 required=5.0 tests=AWL, BAYES_00, FREEMAIL_FROM, RCVD_IN_DNSWL_LOW, SPF_PASS autolearn=ham version=3.3.2 X-HELO: mail-wi0-f182.google.com Received: from mail-wi0-f182.google.com (HELO mail-wi0-f182.google.com) (209.85.212.182) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-SHA encrypted) ESMTPS; Fri, 25 Apr 2014 13:41:02 +0000 Received: by mail-wi0-f182.google.com with SMTP id d1so2676782wiv.3 for ; Fri, 25 Apr 2014 06:40:59 -0700 (PDT) X-Received: by 10.194.9.36 with SMTP id w4mr150966wja.79.1398433259050; Fri, 25 Apr 2014 06:40:59 -0700 (PDT) Received: from localhost ([2.26.169.52]) by mx.google.com with ESMTPSA id gc2sm6012627wic.3.2014.04.25.06.40.58 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 25 Apr 2014 06:40:58 -0700 (PDT) From: Richard Sandiford To: gcc-patches@gcc.gnu.org Mail-Followup-To: gcc-patches@gcc.gnu.org, zadeck@naturalbridge.com, mikestump@comcast.net, rdsandiford@googlemail.com Cc: zadeck@naturalbridge.com, mikestump@comcast.net Subject: [wide-int 3/5] Fix large widths in shifted_mask Date: Fri, 25 Apr 2014 14:40:58 +0100 Message-ID: <878uqtedcl.fsf@talisman.default> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Very minor, but since shifted_mask copes with out-of-range widths, I think mask should too. Tested on x86_64-linux-gnu. OK to install? Thanks, Richard Index: gcc/wide-int.cc =================================================================== --- gcc/wide-int.cc 2014-04-25 09:26:57.025944460 +0100 +++ gcc/wide-int.cc 2014-04-25 09:37:16.873811137 +0100 @@ -716,7 +716,7 @@ wi::mask (HOST_WIDE_INT *val, unsigned i gcc_assert (width < 4 * MAX_BITSIZE_MODE_ANY_INT); gcc_assert (prec <= 4 * MAX_BITSIZE_MODE_ANY_INT); - if (width == prec) + if (width >= prec) { val[0] = negate ? 0 : -1; return 1;