From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 8170 invoked by alias); 10 Apr 2007 18:17:25 -0000 Received: (qmail 8076 invoked by uid 48); 10 Apr 2007 18:17:13 -0000 Date: Tue, 10 Apr 2007 18:17:00 -0000 Message-ID: <20070410181713.8075.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug middle-end/31531] A microoptimization of isnegative of signed integer In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "pinskia at gcc dot gnu dot org" Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2007-04/txt/msg00719.txt.bz2 ------- Comment #2 from pinskia at gcc dot gnu dot org 2007-04-10 19:17 ------- What the real issue is that we don't fold !(x >= 0) into x < 0 before expanding. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Component|c |middle-end Keywords| |missed-optimization Summary|A microoptimization of |A microoptimization of |isnegative or |isnegative of signed integer |greaterthan2millions. | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31531