From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 12536 invoked by alias); 4 Nov 2008 19:37:30 -0000 Received: (qmail 812 invoked by uid 48); 4 Nov 2008 19:36:09 -0000 Date: Tue, 04 Nov 2008 19:37:00 -0000 Message-ID: <20081104193609.811.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug rtl-optimization/37948] [4.4 Regression] IRA generates slower code 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: 2008-11/txt/msg00309.txt.bz2 ------- Comment #7 from hjl dot tools at gmail dot com 2008-11-04 19:36 ------- IRA generates much slower codes: [hjl@gnu-6 37364]$ make /export/build/gnu/gcc/build-x86_64-linux/gcc/xgcc -B/export/build/gnu/gcc/build-x86_64-linux/gcc/ -O2 -m32 -fno-ira -o noira foo.c /export/build/gnu/gcc/build-x86_64-linux/gcc/xgcc -B/export/build/gnu/gcc/build-x86_64-linux/gcc/ -O2 -m32 -o ira foo.c time ./noira 7.62user 0.01system 0:07.65elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+88minor)pagefaults 0swaps time ./ira 7.81user 0.01system 0:07.83elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+87minor)pagefaults 0swaps [hjl@gnu-6 37364]$ make time ./noira 7.07user 0.01system 0:07.10elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+88minor)pagefaults 0swaps time ./ira 7.96user 0.00system 0:07.97elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+87minor)pagefaults 0swaps [hjl@gnu-6 37364]$ make time ./noira 7.40user 0.00system 0:07.40elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+87minor)pagefaults 0swaps time ./ira 7.81user 0.00system 0:07.82elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+87minor)pagefaults 0swaps [hjl@gnu-6 37364]$ -- hjl dot tools at gmail dot com changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|[4.4 Regression] IRA |[4.4 Regression] IRA |generates slower code for - |generates slower code |mtune=core2 | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37948