From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 32092 invoked by alias); 13 Dec 2008 19:52:04 -0000 Received: (qmail 31970 invoked by uid 48); 13 Dec 2008 19:50:44 -0000 Date: Sat, 13 Dec 2008 19:52:00 -0000 Message-ID: <20081213195044.31969.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug c/38518] Excessive compile time with -O3 In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "hjl dot tools at gmail dot com" 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: 2008-12/txt/msg01436.txt.bz2 ------- Comment #2 from hjl dot tools at gmail dot com 2008-12-13 19:50 ------- On 2.66GHz Cor2 Quad running Fedora 9/x86-64, gcc 4.4 revision 142740 gave: lake:pts/1[9]> time ./xgcc -B./ -O3 /tmp/bug48.c -S ./xgcc -B./ -O3 /tmp/bug48.c -S 94.39s user 0.98s system 99% cpu 1:35.51 total lake:pts/1[10]> time ./xgcc -B./ -O2 /tmp/bug48.c -S ./xgcc -B./ -O2 /tmp/bug48.c -S 11.66s user 0.22s system 99% cpu 11.877 total lake:pts/1[11]> time ./xgcc -B./ -O2 /tmp/bug48.c -S -ftree-vectorize ./xgcc -B./ -O2 /tmp/bug48.c -S -ftree-vectorize 61.16s user 0.73s system 99% cpu 1:01.92 total -- hjl dot tools at gmail dot com changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |hjl dot tools at gmail dot | |com Status|UNCONFIRMED |RESOLVED Resolution| |WORKSFORME http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38518