[Bug c/25975] Problems with -ffast-math and isnan

2014-02-17 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25975 --- Comment #11 from Richard Biener --- *** Bug 60237 has been marked as a duplicate of this bug. ***

[Bug c/25975] Problems with -ffast-math and isnan

2011-10-17 Thread redi at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25975 --- Comment #10 from Jonathan Wakely 2011-10-17 21:05:02 UTC --- *** Bug 50724 has been marked as a duplicate of this bug. ***

[Bug c/25975] Problems with -ffast-math and isnan

2011-10-17 Thread pinskia at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25975 --- Comment #9 from Andrew Pinski 2011-10-17 19:25:07 UTC --- *** Bug 50724 has been marked as a duplicate of this bug. ***

[Bug c/25975] Problems with -ffast-math and isnan

2011-10-17 Thread paolo.carlini at oracle dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25975 --- Comment #8 from Paolo Carlini 2011-10-17 18:53:56 UTC --- *** Bug 50724 has been marked as a duplicate of this bug. ***

[Bug c/25975] Problems with -ffast-math and isnan

2011-10-17 Thread paolo.carlini at oracle dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25975 --- Comment #7 from Paolo Carlini 2011-10-17 16:49:03 UTC --- *** Bug 50724 has been marked as a duplicate of this bug. ***

[Bug c/25975] Problems with -ffast-math and isnan

2011-10-17 Thread paolo.carlini at oracle dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25975 --- Comment #6 from Paolo Carlini 2011-10-17 15:43:58 UTC --- *** Bug 50724 has been marked as a duplicate of this bug. ***

[Bug c/25975] Problems with -ffast-math and isnan

2011-10-17 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25975 Richard Guenther changed: What|Removed |Added CC||ejtttje at gmail dot com --- Comment #

[Bug c/25975] Problems with -ffast-math and isnan

2006-01-26 Thread terra at gnome dot org
--- Comment #4 from terra at gnome dot org 2006-01-26 17:22 --- ok, thanks. I'll prevent this by checking for __FAST_MATH__ in my code. One could argue for a warning like nan.c:13: warning: comparison is always false due to limited range of data type for use of isnan and similarly (wi

[Bug c/25975] Problems with -ffast-math and isnan

2006-01-26 Thread pinskia at gcc dot gnu dot org
--- Comment #3 from pinskia at gcc dot gnu dot org 2006-01-26 14:47 --- -ffast-math Sets -fno-math-errno, -funsafe-math-optimizations, -fno-trapping-math, -ffinite-math-only, -fno-rounding-math, -fno-signaling-nans and fcx-limited-range. This option causes the preprocessor macro __FAST_

[Bug c/25975] Problems with -ffast-math and isnan

2006-01-26 Thread pinskia at gcc dot gnu dot org
--- Comment #2 from pinskia at gcc dot gnu dot org 2006-01-26 14:44 --- Please read the docs about -ffast-math. It enables the option -ffinite-math-only which means no NaNs. -- pinskia at gcc dot gnu dot org changed: What|Removed |Added --

[Bug c/25975] Problems with -ffast-math and isnan

2006-01-26 Thread terra at gnome dot org
--- Comment #1 from terra at gnome dot org 2006-01-26 14:43 --- Created an attachment (id=10732) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10732&action=view) Output from "gcc-4.0.2 -E -ffast-math nan.c" > gcc-4.0.2 -v Using built-in specs. Target: i686-pc-linux-gnu Configured