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From: Alexandre Oliva <aoliva@redhat.com>
To: "Richard Guenther" <richard.guenther@gmail.com>
Cc: "Bernd Schmidt" <bernds_cb1@t-online.de>,
	        "Richard Kenner" <kenner@vlsi1.ultra.nyu.edu>,
	gcc-patches@gcc.gnu.org,         gcc@gcc.gnu.org,
	iant@google.com, mark@codesourcery.com,
	        stevenb.gcc@gmail.com
Subject: Re: Designs for better debug info in GCC
Date: Mon, 26 Nov 2007 10:11:00 -0000	[thread overview]
Message-ID: <or4pf9h4te.fsf@oliva.athome.lsd.ic.unicamp.br> (raw)
In-Reply-To: <84fc9c000711241602s5d541755h158d6507de25f3f6@mail.gmail.com> (Richard Guenther's message of "Sun\, 25 Nov 2007 01\:02\:15 +0100")

On Nov 24, 2007, "Richard Guenther" <richard.guenther@gmail.com> wrote:

> No, hashing is fine, but doing walks over a hashtable when your algorithm
> depends on ordering is not.

Point.

> I have patches to fix the instance of walking over all referenced
> vars.  Which is in the case of UIDs using bitmaps and a walk over a
> bitmap (which ensures walks in UID order).

Why is such memory and CPU overhead better than avoiding the
divergence of UIDs in the first place?

-- 
Alexandre Oliva         http://www.lsd.ic.unicamp.br/~oliva/
FSF Latin America Board Member         http://www.fsfla.org/
Red Hat Compiler Engineer   aoliva@{redhat.com, gcc.gnu.org}
Free Software Evangelist  oliva@{lsd.ic.unicamp.br, gnu.org}

  reply	other threads:[~2007-11-26  6:59 UTC|newest]

Thread overview: 145+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-11-12 21:04 Steven Bosscher
2007-11-24  1:37 ` Alexandre Oliva
2007-11-24  2:35   ` Steven Bosscher
2007-11-24 15:08     ` Alexandre Oliva
2007-11-24 15:18       ` Richard Kenner
2007-11-24 20:11         ` Alexandre Oliva
2007-11-24 20:46           ` Bernd Schmidt
2007-11-25  0:42             ` Alexandre Oliva
2007-11-25  7:19               ` Richard Guenther
2007-11-25 14:30                 ` Alexandre Oliva
2007-11-25 14:46                   ` Richard Guenther
2007-11-26 10:11                     ` Alexandre Oliva [this message]
2007-11-26 12:26                       ` Richard Guenther
2007-11-26 18:58                         ` Alexandre Oliva
2007-11-25 14:22               ` Alexandre Oliva
2007-11-24 20:48           ` Richard Kenner
2007-11-25  0:02             ` Alexandre Oliva
2007-11-25 14:23           ` Robert Dewar
2007-12-15 20:32             ` Alexandre Oliva
2007-12-15 21:41               ` Robert Dewar
2007-11-24 16:45       ` Steven Bosscher
2007-11-24 18:50         ` Alexandre Oliva
2007-11-24 20:21           ` Richard Guenther
  -- strict thread matches above, loose matches on Subject: below --
2007-11-05  8:28 [vta] don't let debug insns get in the way of simple vect reduction Alexandre Oliva
2007-11-05 11:27 ` Richard Guenther
2007-11-07  7:52   ` Designs for better debug info in GCC (was: Re: [vta] don't let debug insns get in the way of simple vect reduction) Alexandre Oliva
2007-11-07 16:16     ` Ian Lance Taylor
2007-11-07 19:11       ` Designs for better debug info in GCC Alexandre Oliva
2007-11-07 22:57         ` Ian Lance Taylor
2007-11-07 23:05           ` Daniel Jacobowitz
2007-11-08  0:00           ` Mark Mitchell
2007-11-08  0:15             ` David Edelsohn
2007-11-08  0:35               ` Mark Mitchell
2007-11-08  5:14                 ` Alexandre Oliva
2007-11-08 18:28                   ` Alexandre Oliva
2007-11-22 23:07                 ` Frank Ch. Eigler
2007-11-22 23:13                   ` Richard Guenther
2007-11-23 20:53                     ` Frank Ch. Eigler
2007-11-24  1:53                       ` Alexandre Oliva
2007-11-24 15:02                     ` Robert Dewar
2007-11-08  5:15               ` Alexandre Oliva
2007-11-08 18:18                 ` Alexandre Oliva
2007-11-08 19:46                 ` Andrew Pinski
2007-11-08 20:39                   ` Alexandre Oliva
2007-11-09  8:39                   ` Robert Dewar
2007-11-08  5:44             ` Alexandre Oliva
2007-11-08 18:37               ` Alexandre Oliva
2007-11-08 19:13               ` Mark Mitchell
2007-11-08 19:13                 ` David Daney
2007-11-08 19:17                   ` Mark Mitchell
2007-11-09  2:09                 ` Alexandre Oliva
2007-11-12  4:49                   ` Mark Mitchell
2007-11-12 18:45                     ` Alexandre Oliva
2007-11-12 18:49                       ` Joe Buck
2007-11-25  6:57                         ` Alexandre Oliva
2007-11-25 12:09                           ` Richard Kenner
2007-11-12 18:53                       ` Ian Lance Taylor
2007-11-24  2:12                         ` Alexandre Oliva
2007-11-13 10:30                       ` Mark Mitchell
2007-11-24  1:54                         ` Alexandre Oliva
2007-11-13 15:30                       ` Michael Matz
2007-11-24  2:00                         ` Alexandre Oliva
2007-11-26 21:01                           ` Michael Matz
2007-11-27  5:31                             ` Alexandre Oliva
2007-11-27 20:31                               ` Michael Matz
2007-11-27 21:44                                 ` Alexandre Oliva
2007-11-08  9:54             ` Richard Guenther
2007-11-08  5:01           ` Alexandre Oliva
2007-11-08 18:15             ` Alexandre Oliva
2007-11-08 19:13             ` Ian Lance Taylor
2007-11-08 20:27               ` Alexandre Oliva
2007-11-08 21:26                 ` Ian Lance Taylor
2007-11-09  9:53                   ` Robert Dewar
2007-11-12  5:36                     ` Mark Mitchell
2007-11-12 17:34                       ` Alexandre Oliva
2007-11-12 17:54                         ` Mark Mitchell
2007-11-24  1:55                           ` Alexandre Oliva
2007-11-26  1:08                             ` Mark Mitchell
2007-12-05 14:22                               ` Diego Novillo
2007-12-05 22:10                                 ` Joe Buck
2007-12-15 21:41                                 ` Alexandre Oliva
2007-12-16  3:15                                   ` Daniel Berlin
2007-12-16 13:09                                     ` Alexandre Oliva
2007-12-17  1:27                                       ` Daniel Berlin
2007-12-17  4:20                                         ` Joe Buck
2007-12-17  8:13                                           ` Geert Bosch
2007-12-18  1:24                                             ` Alexandre Oliva
2007-12-18  1:29                                               ` Joe Buck
2007-12-18  4:40                                                 ` Alexandre Oliva
2007-12-18  7:42                                                   ` Robert Dewar
2007-12-18  8:09                                                     ` Alexandre Oliva
2007-12-18 14:01                                                       ` Robert Dewar
2007-12-18 21:20                                                         ` Alexandre Oliva
2007-12-18  7:35                                               ` Robert Dewar
2007-12-18  8:34                                                 ` Alexandre Oliva
2007-12-17 18:36                                           ` Alexandre Oliva
2007-12-17 17:59                                         ` Alexandre Oliva
2007-12-17 18:02                                           ` Diego Novillo
2007-12-17 20:34                                             ` Alexandre Oliva
2007-12-17 20:45                                               ` Diego Novillo
2007-12-18  1:02                                                 ` Alexandre Oliva
2007-12-18  1:14                                                   ` Diego Novillo
2007-12-18  5:21                                                     ` Alexandre Oliva
2007-12-18  9:10                                                       ` Alexandre Oliva
2007-12-18 13:20                                                         ` Diego Novillo
2007-12-18 15:42                                                           ` Alexandre Oliva
2007-12-18 22:43                                                         ` Daniel Berlin
2007-12-19  6:07                                                           ` Alexandre Oliva
2007-12-19  8:39                                                             ` Daniel Berlin
2007-12-19 16:12                                                               ` Daniel Berlin
2007-12-19 16:36                                                                 ` Andrew MacLeod
2007-12-19 19:49                                                                   ` Daniel Berlin
2007-12-19 20:00                                                                 ` Andrew MacLeod
2007-12-19 20:57                                                                   ` Daniel Berlin
2007-12-19 20:07                                                                 ` Alexandre Oliva
2007-12-19 22:00                                                                   ` Daniel Berlin
2007-12-20  9:26                                                                     ` Alexandre Oliva
2007-12-20 17:04                                                                       ` Ian Lance Taylor
2007-12-20 20:53                                                                         ` Alexandre Oliva
2007-12-19 20:27                                                               ` Alexandre Oliva
2007-12-18 23:35                                                         ` Daniel Berlin
2007-12-19  5:50                                                           ` Alexandre Oliva
2007-12-19 16:35                                                             ` Daniel Berlin
2007-12-19 19:46                                                               ` Alexandre Oliva
2007-12-19 20:39                                                                 ` Daniel Jacobowitz
2007-12-31 15:40                                               ` Richard Guenther
2007-12-16 21:42                                   ` Mark Mitchell
2007-11-09  9:55                   ` Seongbae Park (박성배, 朴成培)
2007-11-09 11:08                     ` Robert Dewar
2007-11-08  8:58           ` Paolo Bonzini
2007-11-07 17:20     ` Designs for better debug info in GCC (was: Re: [vta] don't let debug insns get in the way of simple vect reduction) Michael Matz
2007-11-07 18:45       ` Designs for better debug info in GCC Alexandre Oliva
2007-11-08 10:23         ` Michael Matz
2007-11-08 14:02           ` Robert Dewar
2007-11-08 15:13             ` H.J. Lu
2007-11-08 16:11             ` Michael Matz
2007-11-08 17:48               ` Alexandre Oliva
2007-11-09 12:46                 ` Michael Matz
2007-11-12 18:31                   ` Alexandre Oliva
2007-11-13 13:56                     ` Michael Matz
2007-11-24  2:34                       ` Alexandre Oliva
2007-11-26 20:56                         ` Michael Matz
2007-11-27  5:30                           ` Alexandre Oliva
2007-11-08 16:37             ` Alexandre Oliva
2007-11-09  1:26               ` Robert Dewar
2007-11-12 16:56                 ` Alexandre Oliva
2007-11-09  1:26               ` Joe Buck
2007-11-09 14:53                 ` Daniel Jacobowitz
2007-11-09 17:06                   ` Robert Dewar
2007-11-08 16:32           ` Alexandre Oliva

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