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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/62016] [4.8/4.9 Regression] very slow compilation at -O3 on x86_64-linux-gnu
Date: Fri, 16 Jan 2015 09:34:00 -0000 [thread overview]
Message-ID: <bug-62016-4-JbDsSkfesd@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-62016-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62016
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |5.0
Summary|[4.8/4.9/5 Regression] very |[4.8/4.9 Regression] very
|slow compilation at -O3 on |slow compilation at -O3 on
|x86_64-linux-gnu |x86_64-linux-gnu
Known to fail| |4.8.3, 4.9.2
--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
Yep.
> /usr/bin/time gcc-4.7 t.c -O3
0.10user 0.02system 0:00.62elapsed 21%CPU (0avgtext+0avgdata 15704maxresident)k
26080inputs+48outputs (113major+9177minor)pagefaults 0swaps
> /usr/bin/time gcc-4.8 t.c -O3
^C
0.00user 0.00system 6:11.40elapsed 0%CPU (0avgtext+0avgdata 1136maxresident)k
1440inputs+0outputs (7major+331minor)pagefaults 0swaps
> /usr/bin/time gcc-4.9 t.c -O3
3.13user 0.18system 0:03.84elapsed 86%CPU (0avgtext+0avgdata
404088maxresident)k
28400inputs+48outputs (128major+137978minor)pagefaults 0swaps
> /usr/bin/time /space/rguenther/install/gcc-5.0/bin/gcc t.c -O3
0.04user 0.01system 0:00.28elapsed 20%CPU (0avgtext+0avgdata 13364maxresident)k
6376inputs+48outputs (17major+8570minor)pagefaults 0swaps
next prev parent reply other threads:[~2015-01-16 9:34 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-05 5:12 [Bug ipa/62016] New: " su at cs dot ucdavis.edu
2014-08-05 9:07 ` [Bug ipa/62016] [4.8/4.9/4.10 Regression] " rguenth at gcc dot gnu.org
2014-08-05 9:08 ` rguenth at gcc dot gnu.org
2014-08-05 9:11 ` trippels at gcc dot gnu.org
2014-08-07 20:50 ` hubicka at gcc dot gnu.org
2014-08-11 9:10 ` jakub at gcc dot gnu.org
2014-08-11 10:44 ` jakub at gcc dot gnu.org
2014-11-24 13:04 ` [Bug ipa/62016] [4.8/4.9/5 " rguenth at gcc dot gnu.org
2014-12-19 13:28 ` jakub at gcc dot gnu.org
2014-12-19 21:19 ` hubicka at gcc dot gnu.org
2015-01-16 7:19 ` hubicka at gcc dot gnu.org
2015-01-16 9:34 ` rguenth at gcc dot gnu.org [this message]
2015-06-23 8:19 ` [Bug ipa/62016] [4.8/4.9 " rguenth at gcc dot gnu.org
2015-06-26 19:56 ` [Bug ipa/62016] [4.9 " jakub at gcc dot gnu.org
2015-06-26 20:28 ` jakub at gcc dot gnu.org
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