From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 17522 invoked by alias); 30 Jan 2004 21:15:06 -0000 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 Received: (qmail 17453 invoked by alias); 30 Jan 2004 21:15:04 -0000 Date: Fri, 30 Jan 2004 21:15:00 -0000 Message-ID: <20040130211504.17452.qmail@sources.redhat.com> From: "kgardas at objectsecurity dot com" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20040120183448.13775.kgardas@objectsecurity.com> References: <20040120183448.13775.kgardas@objectsecurity.com> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug optimization/13775] [3.4/3.5 Regression] Many C++ compile-time regression in 3.4.0 in comparison with 3.3.2 X-Bugzilla-Reason: CC X-SW-Source: 2004-01/txt/msg03921.txt.bz2 List-Id: ------- Additional Comments From kgardas at objectsecurity dot com 2004-01-30 21:14 ------- Subject: Re: [3.4/3.5 Regression] Many C++ compile-time regression in 3.4.0 in comparison with 3.3.2 Sure! Here we go: (I've tested typecode.cc as it is the worst case) thinkpad:/mnt/karel/mico/orb$ time make typecode.pic.o c++ -I../include -time -ftime-report -O2 -Wall -DPIC -fPIC -c typecode.cc -o typecode.pic.o Execution times (seconds) garbage collection : 2.41 ( 7%) usr 0.00 ( 0%) sys 2.45 ( 6%) wall callgraph construction: 0.14 ( 0%) usr 0.00 ( 0%) sys 0.14 ( 0%) wall callgraph optimization: 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall cfg construction : 0.31 ( 1%) usr 0.02 ( 2%) sys 0.34 ( 1%) wall cfg cleanup : 0.49 ( 1%) usr 0.01 ( 1%) sys 0.52 ( 1%) wall trivially dead code : 0.52 ( 1%) usr 0.00 ( 0%) sys 0.52 ( 1%) wall life analysis : 0.98 ( 3%) usr 0.00 ( 0%) sys 1.00 ( 3%) wall life info update : 0.43 ( 1%) usr 0.00 ( 0%) sys 0.44 ( 1%) wall alias analysis : 0.80 ( 2%) usr 0.02 ( 2%) sys 0.82 ( 2%) wall register scan : 0.41 ( 1%) usr 0.00 ( 0%) sys 0.41 ( 1%) wall rebuild jump labels : 0.20 ( 1%) usr 0.00 ( 0%) sys 0.20 ( 1%) wall preprocessing : 0.38 ( 1%) usr 0.10 ( 8%) sys 0.51 ( 1%) wall parser : 4.38 (12%) usr 0.34 (26%) sys 4.88 (13%) wall name lookup : 2.32 ( 6%) usr 0.40 (30%) sys 2.88 ( 7%) wall expand : 8.22 (23%) usr 0.00 ( 0%) sys 8.42 (22%) wall varconst : 0.05 ( 0%) usr 0.02 ( 2%) sys 0.07 ( 0%) wall integration : 1.50 ( 4%) usr 0.02 ( 2%) sys 1.73 ( 4%) wall jump : 0.62 ( 2%) usr 0.11 ( 8%) sys 0.77 ( 2%) wall CSE : 2.60 ( 7%) usr 0.00 ( 0%) sys 2.68 ( 7%) wall global CSE : 2.46 ( 7%) usr 0.15 (11%) sys 2.67 ( 7%) wall loop analysis : 0.13 ( 0%) usr 0.00 ( 0%) sys 0.14 ( 0%) wall bypass jumps : 0.29 ( 1%) usr 0.03 ( 2%) sys 0.35 ( 1%) wall CSE 2 : 0.82 ( 2%) usr 0.00 ( 0%) sys 0.84 ( 2%) wall branch prediction : 0.40 ( 1%) usr 0.01 ( 1%) sys 0.41 ( 1%) wall flow analysis : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall combiner : 0.48 ( 1%) usr 0.00 ( 0%) sys 0.50 ( 1%) wall if-conversion : 0.08 ( 0%) usr 0.00 ( 0%) sys 0.08 ( 0%) wall regmove : 0.19 ( 1%) usr 0.00 ( 0%) sys 0.19 ( 0%) wall local alloc : 0.42 ( 1%) usr 0.02 ( 2%) sys 0.44 ( 1%) wall global alloc : 1.12 ( 3%) usr 0.02 ( 2%) sys 1.19 ( 3%) wall reload CSE regs : 0.48 ( 1%) usr 0.00 ( 0%) sys 0.48 ( 1%) wall flow 2 : 0.10 ( 0%) usr 0.00 ( 0%) sys 0.14 ( 0%) wall if-conversion 2 : 0.08 ( 0%) usr 0.00 ( 0%) sys 0.09 ( 0%) wall peephole 2 : 0.12 ( 0%) usr 0.00 ( 0%) sys 0.15 ( 0%) wall rename registers : 0.13 ( 0%) usr 0.01 ( 1%) sys 0.15 ( 0%) wall scheduling 2 : 0.69 ( 2%) usr 0.01 ( 1%) sys 0.75 ( 2%) wall reorder blocks : 0.07 ( 0%) usr 0.00 ( 0%) sys 0.07 ( 0%) wall shorten branches : 0.10 ( 0%) usr 0.00 ( 0%) sys 0.10 ( 0%) wall final : 0.30 ( 1%) usr 0.00 ( 0%) sys 0.31 ( 1%) wall symout : 0.01 ( 0%) usr 0.01 ( 1%) sys 0.02 ( 0%) wall rest of compilation : 1.00 ( 3%) usr 0.01 ( 1%) sys 1.05 ( 3%) wall TOTAL : 36.31 1.32 38.99 # cc1plus 36.31 1.33 # as 0.29 0.02 real 0m40.410s user 0m37.000s sys 0m1.400s Cheers, Karel -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13775