From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 24600 invoked by alias); 24 Sep 2006 10:05:14 -0000 Received: (qmail 24583 invoked by uid 48); 24 Sep 2006 10:05:07 -0000 Date: Sun, 24 Sep 2006 10:05:00 -0000 Message-ID: <20060924100507.24582.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug tree-optimization/28230] [4.2 Regression] -O2 -fwrapv miscompiles gcc, binutils, gzip. In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "steven at gcc dot gnu dot org" Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2006-09/txt/msg02283.txt.bz2 List-Id: ------- Comment #14 from steven at gcc dot gnu dot org 2006-09-24 10:05 ------- Value ranges after VRP without -fwrapv: e_1: VARYING n_2: VARYING e_3: VARYING tn_4: VARYING D.1875_5: [0, 65535] EQUIVALENCES: { } (0 elements) bb_6: VARYING D.1876_7: [0, +INF] EQUIVALENCES: { } (0 elements) n_8: [0, +INF] EQUIVALENCES: { } (0 elements) e_9: VARYING e_11: VARYING e_12: [n_2 + 1, +INF] EQUIVALENCES: { e_1 e_21 } (2 elements) e_13: [e_3, e_3] EQUIVALENCES: { e_3 } (1 elements) D.1878_14: [0, +INF] EQUIVALENCES: { } (0 elements) n_15: [0, +INF] EQUIVALENCES: { } (0 elements) D.1879_16: VARYING SMT.5_17: VARYING SMT.5_18: VARYING e_21: [n_2 + 1, +INF] EQUIVALENCES: { e_1 } (1 elements) Value ranges after VRP with -fwrapv: e_1: VARYING n_2: [0, 65534] EQUIVALENCES: { } (0 elements) e_3: VARYING tn_4: VARYING D.1875_5: [0, 65535] EQUIVALENCES: { } (0 elements) bb_6: VARYING D.1876_7: [0, +INF] EQUIVALENCES: { } (0 elements) n_8: [0, 65534] EQUIVALENCES: { } (0 elements) e_9: VARYING e_11: VARYING e_12: [1, +INF] EQUIVALENCES: { e_1 e_21 } (2 elements) e_13: [e_3, e_3] EQUIVALENCES: { e_3 } (1 elements) D.1878_14: [0, +INF] EQUIVALENCES: { } (0 elements) n_15: [1, 65534] EQUIVALENCES: { } (0 elements) D.1879_16: VARYING SMT.5_17: VARYING SMT.5_18: VARYING e_21: [1, +INF] EQUIVALENCES: { e_1 } (1 elements) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28230