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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/55378] Inconsistant double 387 computation when using osthread under windows
Date: Mon, 19 Nov 2012 01:55:00 -0000 [thread overview]
Message-ID: <bug-55378-4-f58A6o97ug@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-55378-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55378
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|Mingw, cygwin |i?86-*-mingw*
| |i?86-*-cygwin-*
Component|c |target
Host|Windows |
Severity|major |normal
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-11-19 01:55:29 UTC ---
The difference is 1ulp correct? Maybe there is different rounding modes are
selected for the main thread and the spawned threads. Can you see which mode
of i387 is used for each? Maybe the spawned threads are using 80bits while the
main thread is using 64bits.
next prev parent reply other threads:[~2012-11-19 1:55 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-18 13:00 [Bug c/55378] New: Inconsistant double 387 computation when using osthread philippe.coustaux at gmail dot com
2012-11-18 14:16 ` [Bug c/55378] " philippe.coustaux at gmail dot com
2012-11-19 1:55 ` pinskia at gcc dot gnu.org [this message]
2012-11-19 5:00 ` [Bug target/55378] Inconsistant double 387 computation when using osthread under windows philippe.coustaux at gmail dot com
2012-11-19 5:19 ` philippe.coustaux at gmail dot com
2012-11-19 6:05 ` philippe.coustaux at gmail dot com
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