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* [Bug libstdc++/17140] New: Floating point output is slow
@ 2004-08-23  4:08 jlquinn at gcc dot gnu dot org
  2004-08-23  5:31 ` [Bug libstdc++/17140] " pinskia at gcc dot gnu dot org
                   ` (31 more replies)
  0 siblings, 32 replies; 33+ messages in thread
From: jlquinn at gcc dot gnu dot org @ 2004-08-23  4:08 UTC (permalink / raw)
  To: gcc-bugs

This is a place holder for the work I had done on bringing the old gcc 2.95
floating point printing code back into the library.  I had gotten as far as
having working code on x86 for double and long double, but we had stalled on
getting configury bits in place.  I've been busy for a while, but this has still
been in the back of my mind.

Basically, the code is about 3x faster than printf for a subset of numbers where
it can be accurately printed using hardware fp.  When using big ints, it was
about 50% slower than printf on x86 linux.  The code also contains data to print
IBM and VAX fp numbers, but not for c4x fp numbers.

It also had not been tested on platforms other than x86 linux.  However, it
showed promise :-)

-- 
           Summary: Floating point output is slow
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libstdc++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jlquinn at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17140


^ permalink raw reply	[flat|nested] 33+ messages in thread
end of thread, other threads:[~2005-01-26 14:34 UTC | newest]

Thread overview: 33+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-08-23  4:08 [Bug libstdc++/17140] New: Floating point output is slow jlquinn at gcc dot gnu dot org
2004-08-23  5:31 ` [Bug libstdc++/17140] " pinskia at gcc dot gnu dot org
2004-09-02 18:05 ` bkoz at gcc dot gnu dot org
2004-09-03 12:46 ` jlquinn at gcc dot gnu dot org
2004-09-03 15:00 ` bkoz at gcc dot gnu dot org
2004-09-03 15:57 ` bkoz at gcc dot gnu dot org
2004-09-04 15:21 ` jlquinn at gcc dot gnu dot org
2004-09-07 13:51 ` pcarlini at suse dot de
2004-11-15 15:02 ` jlquinn at gcc dot gnu dot org
2004-11-15 17:04 ` bkoz at redhat dot com
2004-11-15 17:24 ` jlquinn at gcc dot gnu dot org
2004-11-17  4:40 ` jlquinn at gcc dot gnu dot org
2004-11-19 22:34 ` bkoz at gcc dot gnu dot org
2004-11-19 22:34 ` pcarlini at suse dot de
2004-11-21 23:39 ` pcarlini at suse dot de
2004-11-22  9:44 ` pcarlini at suse dot de
2004-11-22  9:58 ` pcarlini at suse dot de
2004-11-22 10:37 ` pcarlini at suse dot de
2004-11-22 18:14 ` pcarlini at suse dot de
2004-12-16  4:43 ` jlquinn at gcc dot gnu dot org
2004-12-20 21:01 ` jlquinn at gcc dot gnu dot org
2004-12-21 19:19 ` jlquinn at gcc dot gnu dot org
2004-12-21 19:40 ` jlquinn at gcc dot gnu dot org
2004-12-21 19:43 ` pinskia at gcc dot gnu dot org
2004-12-21 19:45 ` pinskia at gcc dot gnu dot org
2004-12-21 20:39 ` pcarlini at suse dot de
2005-01-03 14:58 ` pcarlini at suse dot de
2005-01-03 15:27 ` pcarlini at suse dot de
2005-01-03 16:41 ` pcarlini at suse dot de
2005-01-03 22:05 ` jlquinn at gcc dot gnu dot org
2005-01-16 17:09 ` jlquinn at optonline dot net
2005-01-16 17:13 ` pcarlini at suse dot de
2005-01-26 14:34 ` pinskia at gcc dot gnu dot org

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