From: kenner@vlsi1.ultra.nyu.edu (Richard Kenner)
To: rth@redhat.com
Cc: gcc@gcc.gnu.org
Subject: Re: [RFC] Contributing tree-ssa to mainline
Date: Mon, 19 Jan 2004 11:44:00 -0000 [thread overview]
Message-ID: <10401191147.AA27388@vlsi1.ultra.nyu.edu> (raw)
So we've missed the required factor of 2 on this test case by 0.8%.
Since that seems likely to be in the relm of measurement error, I
think that should qualify.
I agree.
With a bit more work unwravelling C++ front-end obfuscation, I would
expect the 10-20% to be visible on just about any object abstraction
test case. Particularly for any object that has more than one field,
and thus can't benefit from rtl addressof. That seems like it should
be a large enough class to qualify.
Likewise.
However, it would be good to see cases of both of the above for C as well as
C++: if the gain is just C++, one could argue that the most appropriate place
for such code is in the C++ front end. (There are Ada-specific optimizations
in the Ada front end, for example.)
The tree-ssa infrastructure is supposed to benefit *all* languages. If
benefits can be shown in C, they will clearly apply to all languages. But
that's not true for C++.
next reply other threads:[~2004-01-19 11:44 UTC|newest]
Thread overview: 192+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-19 11:44 Richard Kenner [this message]
2004-01-19 12:00 ` Jan Hubicka
2004-01-19 12:13 ` Andrew Pinski
2004-01-19 12:12 ` Richard Henderson
-- strict thread matches above, loose matches on Subject: below --
2004-01-20 12:36 Richard Kenner
2004-01-20 15:06 ` Daniel Jacobowitz
2004-01-20 15:14 ` Steven Bosscher
2004-01-20 16:14 ` Diego Novillo
2004-01-20 11:46 Richard Kenner
2004-01-20 11:57 ` Steven Bosscher
2004-01-20 4:35 Robert Dewar
2004-01-20 4:23 Richard Kenner
2004-01-20 4:28 ` Andrew Pinski
2004-01-20 11:15 ` Diego Novillo
2004-01-19 23:40 Richard Kenner
2004-01-19 23:15 Richard Kenner
2004-01-19 23:31 ` tm_gccmail
2004-01-19 19:13 Richard Kenner
2004-01-19 18:06 Richard Kenner
2004-01-19 16:12 Richard Kenner
2004-01-19 15:05 Richard Kenner
2004-01-19 15:56 ` law
2004-01-19 22:41 ` Andrew Pinski
2004-01-19 14:17 Richard Kenner
2004-01-19 14:46 ` Diego Novillo
2004-01-19 17:58 ` Dan Nicolaescu
2004-01-19 14:02 Richard Kenner
2004-01-19 12:29 Richard Kenner
2004-01-19 12:24 Richard Kenner
2004-01-19 12:31 ` Andrew Haley
2004-01-19 12:36 ` Paul Brook
2004-01-19 12:39 ` Paul Brook
2004-01-19 12:38 ` Andrew Haley
2004-01-19 12:49 ` Diego Novillo
2004-01-19 17:42 ` Geert Bosch
2004-01-19 17:51 ` Diego Novillo
2004-01-19 17:56 ` John R. Shannon
2004-01-19 18:02 ` Diego Novillo
2004-01-19 18:09 ` Geert Bosch
2004-01-19 18:27 ` Robert Dewar
2004-01-19 12:51 ` Jan Hubicka
2004-01-19 15:51 ` law
2004-01-19 17:30 ` Robert Dewar
2004-01-19 17:48 ` law
2004-01-19 17:57 ` Diego Novillo
2004-01-19 13:26 ` Theodore Papadopoulo
2004-01-19 14:23 ` Robert Dewar
2004-01-19 18:00 ` Tom Tromey
2004-01-19 18:11 ` Andrew Haley
2004-01-19 18:39 ` Jeff Sturm
2004-01-18 13:09 Richard Kenner
2004-01-17 17:17 Dara Hazeghi
2004-01-19 17:23 ` law
2004-01-17 13:35 Richard Kenner
2004-01-17 14:05 ` Steven Bosscher
2004-01-17 15:26 ` Andreas Jaeger
2004-01-17 13:33 Richard Kenner
2004-01-17 13:29 Richard Kenner
2004-01-17 17:58 ` Diego Novillo
2004-01-17 13:20 Richard Kenner
2004-01-17 3:26 Richard Kenner
2004-01-17 14:49 ` Scott Robert Ladd
2004-01-17 3:21 Richard Kenner
2004-01-17 3:26 ` Diego Novillo
2004-01-17 5:52 ` Per Bothner
2004-01-17 6:09 ` Andrew Pinski
2004-01-18 2:46 ` Scott A Crosby
2004-01-17 8:00 ` Diego Novillo
2004-01-17 13:47 ` Florian Weimer
2004-01-17 14:48 ` Daniel Berlin
2004-01-17 14:53 ` Florian Weimer
2004-01-17 15:14 ` Daniel Berlin
2004-01-17 17:07 ` Joseph S. Myers
2004-01-17 17:14 ` Diego Novillo
2004-01-17 17:40 ` Daniel Berlin
2004-01-17 18:34 ` Mark Mitchell
2004-01-17 14:57 ` Diego Novillo
2004-01-19 23:30 ` Joe Buck
2004-01-19 23:43 ` Daniel Berlin
2004-01-20 0:20 ` Dale Johannesen
2004-01-20 3:12 ` Geert Bosch
2004-01-20 3:27 ` Diego Novillo
2004-01-17 3:15 Robert Dewar
2004-01-17 2:56 Richard Kenner
2004-01-17 3:14 ` Steven Bosscher
2004-01-17 3:20 ` Diego Novillo
2004-01-17 2:52 Richard Kenner
2004-01-17 3:12 ` Steven Bosscher
2004-01-17 2:39 Richard Kenner
2004-01-17 3:04 ` Robert Dewar
2004-01-17 16:55 ` Gerald Pfeifer
2004-01-19 14:48 ` Lars Segerlund
2004-01-19 23:37 ` Joe Buck
2004-01-17 2:28 Richard Kenner
2004-01-17 3:09 ` Steven Bosscher
2004-01-17 5:04 ` Roger Sayle
2004-01-17 5:31 ` Diego Novillo
2004-01-17 6:04 ` Roger Sayle
2004-01-17 6:19 ` David Edelsohn
2004-01-17 14:54 ` Scott Robert Ladd
2004-01-17 14:01 ` Jan Hubicka
2004-01-17 14:20 ` Roger Sayle
2004-01-17 14:29 ` Roger Sayle
2004-01-17 14:44 ` Jan Hubicka
2004-01-17 15:07 ` Jan Hubicka
2004-01-17 14:37 ` Jan Hubicka
2004-01-17 21:32 ` Richard Henderson
2004-01-17 21:45 ` Diego Novillo
2004-01-17 5:06 ` Diego Novillo
2004-01-17 6:13 ` law
2004-01-17 12:07 ` Robert Dewar
2004-01-17 12:15 ` John R. Shannon
2004-01-19 23:46 ` Joe Buck
2004-01-17 0:19 Diego Novillo
2004-01-17 0:31 ` Daniel Berlin
2004-01-17 0:35 ` Andrew Pinski
2004-01-17 0:44 ` Gerald Pfeifer
2004-01-17 0:53 ` law
2004-01-17 0:54 ` law
2004-01-17 1:37 ` Gerald Pfeifer
2004-01-17 1:46 ` Diego Novillo
2004-01-17 0:55 ` Eric Christopher
2004-01-17 2:48 ` Robert Dewar
2004-01-17 22:08 ` Eric Christopher
2004-01-17 1:02 ` Joseph S. Myers
2004-01-17 1:51 ` Kaveh R. Ghazi
2004-01-17 2:01 ` Gabriel Dos Reis
2004-01-17 2:17 ` Kaveh R. Ghazi
2004-01-17 3:01 ` Daniel Berlin
2004-01-17 2:19 ` Steven Bosscher
2004-01-17 3:02 ` Robert Dewar
2004-01-17 3:55 ` Andrew Pinski
2004-01-17 3:36 ` Diego Novillo
2004-01-17 13:06 ` Giovanni Bajo
2004-01-17 13:53 ` Jan Hubicka
2004-01-18 7:01 ` law
2004-01-17 17:04 ` Kaveh R. Ghazi
2004-01-17 17:16 ` Scott Robert Ladd
2004-01-17 17:30 ` Kaveh R. Ghazi
2004-01-17 17:50 ` Scott Robert Ladd
2004-01-17 17:37 ` Robert Dewar
2004-01-17 17:46 ` Joseph S. Myers
2004-01-17 17:51 ` Robert Dewar
2004-01-17 18:11 ` Joseph S. Myers
2004-01-17 19:12 ` Arnaud Charlet
2004-01-29 0:36 ` Robert Dewar
2004-01-29 0:00 ` Robert Dewar
2004-01-17 17:58 ` Scott Robert Ladd
2004-01-17 18:09 ` Joseph S. Myers
2004-01-17 18:06 ` Mark Mitchell
2004-01-18 7:15 ` law
2004-01-18 15:50 ` Daniel Berlin
2004-01-17 17:12 ` Kaveh R. Ghazi
2004-01-17 17:26 ` Diego Novillo
2004-01-17 5:31 ` Diego Novillo
2004-01-17 6:15 ` law
2004-01-17 6:22 ` Andrew Pinski
2004-01-17 6:38 ` Diego Novillo
2004-01-17 14:45 ` Daniel Berlin
2004-01-17 21:23 ` law
2004-01-17 21:33 ` Steven Bosscher
2004-01-18 2:34 ` Zack Weinberg
2004-01-17 11:16 ` Joseph S. Myers
2004-01-17 17:50 ` Diego Novillo
2004-01-17 18:06 ` Joseph S. Myers
2004-01-17 20:14 ` Steven Bosscher
2004-01-17 23:38 ` Toon Moene
2004-01-18 1:06 ` Phil Edwards
2004-01-17 2:15 ` Steven Bosscher
2004-01-17 3:01 ` Robert Dewar
2004-01-17 11:08 ` Andrew Walrond
2004-01-17 23:33 ` Toon Moene
2004-01-17 14:30 ` Scott Robert Ladd
2004-01-17 14:57 ` Paul Brook
2004-01-17 15:28 ` Scott Robert Ladd
2004-01-17 21:24 ` law
2004-01-17 21:47 ` Diego Novillo
2004-01-17 19:01 ` Mark Mitchell
2004-01-17 19:23 ` Andrew Pinski
2004-01-18 0:14 ` Toon Moene
2004-01-20 1:39 ` Kaveh R. Ghazi
2004-01-20 2:00 ` Gabriel Dos Reis
2004-01-20 2:08 ` Mark Mitchell
2004-01-20 2:31 ` Gabriel Dos Reis
2004-01-20 15:19 ` Scott Robert Ladd
2004-01-20 15:27 ` Andrew Haley
2004-01-20 2:09 ` Diego Novillo
2004-01-22 8:49 ` Gerald Pfeifer
2004-01-17 19:22 ` Daniel Jacobowitz
2004-01-17 19:34 ` Richard Guenther
2004-01-17 20:21 ` Steven Bosscher
2004-01-18 1:24 ` David Edelsohn
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