From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 24900 invoked by alias); 31 Jan 2009 21:36:17 -0000 Received: (qmail 24858 invoked by uid 48); 31 Jan 2009 21:36:05 -0000 Date: Sat, 31 Jan 2009 21:36:00 -0000 Message-ID: <20090131213605.24857.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug tree-optimization/18687] [4.2/4.3/4.4 Regression] ~50% compile time regression In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "rguenth 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: 2009-01/txt/msg03479.txt.bz2 ------- Comment #39 from rguenth at gcc dot gnu dot org 2009-01-31 21:36 ------- 4.0.4 4.1.2 4.2.4 4.3.3 4.4.0 -O0: 1.64 1.58 1.91 1.86 2.20 -O1: 4.12 4.60 10.14 5.31 5.43 -O2: 6.10 6.60 13.34 8.40 8.57 -Os: 4.82 5.38 10.92 6.54 6.77 -O3: 6.10 9.80 18.12 12.81 13.42 my 4.2.4 build is with checking enabled. I do not have a x86_64 build from the 3.3 or 3.4 series available. At -O0 with 4.3 the DF framework likely adds compile-time, with 4.4 it is the (partial) tuple transition and maybe SSA at -O0, maybe IRA. Comparing optimized build-times is likely unfair as we add optimization capabilities. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18687