http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49010
--- Comment #12 from Janne Blomqvist jb at gcc dot gnu.org 2012-05-05
07:59:28 UTC ---
Author: jb
Date: Sat May 5 07:59:22 2012
New Revision: 187191
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=187191
Log:
PR 49010,24518 MOD/MODULO
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49010
Janne Blomqvist jb at gcc dot gnu.org changed:
What|Removed |Added
Status|UNCONFIRMED |RESOLVED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49010
--- Comment #5 from Thomas Henlich thenlich at users dot sourceforge.net
2011-05-17 05:51:56 UTC ---
The fmod behaviour is correct for x 0 according to N1548:
double fmod(double x, double y);
float fmodf(float x, float y);
The fmod functions
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49010
Janne Blomqvist jb at gcc dot gnu.org changed:
What|Removed |Added
CC||jb at gcc dot
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49010
--- Comment #7 from Thomas Henlich thenlich at users dot sourceforge.net
2011-05-17 11:57:31 UTC ---
I suppose we could still use __builtin_fmod if we reset the sign bit if the
result is -0.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49010
--- Comment #8 from Janne Blomqvist jb at gcc dot gnu.org 2011-05-17 14:02:07
UTC ---
So does the fallback path actually ever get used? AFAICS the builtins are
always available, and if the builtin results in a call to fmod{f,,l,Q} we have
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49010
--- Comment #9 from Steve Kargl sgk at troutmask dot apl.washington.edu
2011-05-17 14:02:11 UTC ---
On Tue, May 17, 2011 at 06:05:50AM +, thenlich at users dot sourceforge.net
wrote:
--- Comment #5 from Thomas Henlich thenlich at users dot
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49010
--- Comment #10 from Steve Kargl sgk at troutmask dot apl.washington.edu
2011-05-17 14:50:52 UTC ---
On Tue, May 17, 2011 at 02:17:22PM +, jb at gcc dot gnu.org wrote:
So does the fallback path actually ever get used? AFAICS the builtins
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49010
--- Comment #11 from Janne Blomqvist jb at gcc dot gnu.org 2011-05-17
16:18:41 UTC ---
(In reply to comment #10)
On Tue, May 17, 2011 at 02:17:22PM +, jb at gcc dot gnu.org wrote:
So does the fallback path actually ever get used? AFAICS
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49010
Tobias Burnus burnus at gcc dot gnu.org changed:
What|Removed |Added
CC||burnus at gcc
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49010
kargl at gcc dot gnu.org changed:
What|Removed |Added
CC||kargl at gcc dot gnu.org
---
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49010
--- Comment #3 from Steve Kargl sgk at troutmask dot apl.washington.edu
2011-05-16 21:17:44 UTC ---
There is an additional problem with MOD(A,P) and MODULO(A,P).
In F95, one finds P = 0, the result is processor dependent.
In F2003 and F2008,
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49010
--- Comment #4 from Steve Kargl sgk at troutmask dot apl.washington.edu
2011-05-16 21:43:57 UTC ---
On Mon, May 16, 2011 at 09:31:57PM +, sgk at troutmask dot
apl.washington.edu wrote:
In F95, one finds P = 0, the result is processor
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