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* [Bug math/13852] New: sincosf(), sinf(), cosf() is incorrect for large inputs on x86_64 and x86
@ 2012-03-15 13:46 aj at suse dot de
2012-03-15 14:57 ` [Bug math/13852] sincosf(), sinf(), cosf(), tanl() are " aj at suse dot de
` (9 more replies)
0 siblings, 10 replies; 11+ messages in thread
From: aj at suse dot de @ 2012-03-15 13:46 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13852
Bug #: 13852
Summary: sincosf(), sinf(), cosf() is incorrect for large
inputs on x86_64 and x86
Product: glibc
Version: 2.15
Status: NEW
Keywords: glibc_2.15
Severity: normal
Priority: P2
Component: math
AssignedTo: unassigned@sourceware.org
ReportedBy: aj@suse.de
CC: aj@suse.de, bugdal@aerifal.cx,
carlos@systemhalted.org, ppluzhnikov@google.com,
vincent-srcware@vinc17.net
Depends on: 13658
Blocks: 13851
Classification: Unclassified
+++ This bug was initially created as a clone of Bug #13658 +++
sincosf() is inaccurate for large inputs on x86_64: with glibc 2.13,
#define _GNU_SOURCE
#include <stdio.h>
#include <math.h>
int main (void)
{
volatile float x = 1.0e22;
float s1, s2, c1;
sincosf (x, &s1, &c1);
s2 = sinf (x);
printf ("s1 = %.17g\n", s1);
printf ("s2 = %.17g\n", s2);
return 0;
}
outputs:
s1 = 0.28122705221176147
s2 = 0.28122705221176147
Correct value:
0.85220084976718879
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* [Bug math/13852] sincosf(), sinf(), cosf(), tanl() are incorrect for large inputs on x86_64 and x86
2012-03-15 13:46 [Bug math/13852] New: sincosf(), sinf(), cosf() is incorrect for large inputs on x86_64 and x86 aj at suse dot de
@ 2012-03-15 14:57 ` aj at suse dot de
2012-03-15 15:00 ` [Bug math/13852] sincosf(), sinf(), cosf(), tanf() " aj at suse dot de
` (8 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: aj at suse dot de @ 2012-03-15 14:57 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13852
Andreas Jaeger <aj at suse dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|sincosf(), sinf(), cosf() |sincosf(), sinf(), cosf(),
|is incorrect for large |tanl() are incorrect for
|inputs on x86_64 and x86 |large inputs on x86_64 and
| |x86
--- Comment #1 from Andreas Jaeger <aj at suse dot de> 2012-03-15 14:56:58 UTC ---
This applies to sinf, cosf, tanf and sincosf.
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* [Bug math/13852] sincosf(), sinf(), cosf(), tanf() are incorrect for large inputs on x86_64 and x86
2012-03-15 13:46 [Bug math/13852] New: sincosf(), sinf(), cosf() is incorrect for large inputs on x86_64 and x86 aj at suse dot de
2012-03-15 14:57 ` [Bug math/13852] sincosf(), sinf(), cosf(), tanl() are " aj at suse dot de
@ 2012-03-15 15:00 ` aj at suse dot de
2012-03-15 15:09 ` aj at suse dot de
` (7 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: aj at suse dot de @ 2012-03-15 15:00 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13852
Andreas Jaeger <aj at suse dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|sincosf(), sinf(), cosf(), |sincosf(), sinf(), cosf(),
|tanl() are incorrect for |tanf() are incorrect for
|large inputs on x86_64 and |large inputs on x86_64 and
|x86 |x86
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^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug math/13852] sincosf(), sinf(), cosf(), tanf() are incorrect for large inputs on x86_64 and x86
2012-03-15 13:46 [Bug math/13852] New: sincosf(), sinf(), cosf() is incorrect for large inputs on x86_64 and x86 aj at suse dot de
2012-03-15 14:57 ` [Bug math/13852] sincosf(), sinf(), cosf(), tanl() are " aj at suse dot de
2012-03-15 15:00 ` [Bug math/13852] sincosf(), sinf(), cosf(), tanf() " aj at suse dot de
@ 2012-03-15 15:09 ` aj at suse dot de
2012-03-15 15:35 ` aj at suse dot de
` (6 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: aj at suse dot de @ 2012-03-15 15:09 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13852
Andreas Jaeger <aj at suse dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Depends on| |13854
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* [Bug math/13852] sincosf(), sinf(), cosf(), tanf() are incorrect for large inputs on x86_64 and x86
2012-03-15 13:46 [Bug math/13852] New: sincosf(), sinf(), cosf() is incorrect for large inputs on x86_64 and x86 aj at suse dot de
` (2 preceding siblings ...)
2012-03-15 15:09 ` aj at suse dot de
@ 2012-03-15 15:35 ` aj at suse dot de
2012-03-15 15:39 ` aj at suse dot de
` (5 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: aj at suse dot de @ 2012-03-15 15:35 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13852
Andreas Jaeger <aj at suse dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Blocks|13851 |
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^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug math/13852] sincosf(), sinf(), cosf(), tanf() are incorrect for large inputs on x86_64 and x86
2012-03-15 13:46 [Bug math/13852] New: sincosf(), sinf(), cosf() is incorrect for large inputs on x86_64 and x86 aj at suse dot de
` (3 preceding siblings ...)
2012-03-15 15:35 ` aj at suse dot de
@ 2012-03-15 15:39 ` aj at suse dot de
2012-03-15 15:47 ` [Bug math/13852] sincosf(), sinf(), cosf(), tanf() are incorrect for large inputs on x86 aj at suse dot de
` (4 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: aj at suse dot de @ 2012-03-15 15:39 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13852
Andreas Jaeger <aj at suse dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Depends on|13854 |
--
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^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug math/13852] sincosf(), sinf(), cosf(), tanf() are incorrect for large inputs on x86
2012-03-15 13:46 [Bug math/13852] New: sincosf(), sinf(), cosf() is incorrect for large inputs on x86_64 and x86 aj at suse dot de
` (4 preceding siblings ...)
2012-03-15 15:39 ` aj at suse dot de
@ 2012-03-15 15:47 ` aj at suse dot de
2012-03-15 17:07 ` aj at suse dot de
` (3 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: aj at suse dot de @ 2012-03-15 15:47 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13852
Andreas Jaeger <aj at suse dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|sincosf(), sinf(), cosf(), |sincosf(), sinf(), cosf(),
|tanf() are incorrect for |tanf() are incorrect for
|large inputs on x86_64 and |large inputs on x86
|x86 |
--- Comment #2 from Andreas Jaeger <aj at suse dot de> 2012-03-15 15:47:20 UTC ---
This applies only to x86 - and better use 0x1p65 as exact input value, the
result is: 0.047236487235904796.
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^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug math/13852] sincosf(), sinf(), cosf(), tanf() are incorrect for large inputs on x86
2012-03-15 13:46 [Bug math/13852] New: sincosf(), sinf(), cosf() is incorrect for large inputs on x86_64 and x86 aj at suse dot de
` (5 preceding siblings ...)
2012-03-15 15:47 ` [Bug math/13852] sincosf(), sinf(), cosf(), tanf() are incorrect for large inputs on x86 aj at suse dot de
@ 2012-03-15 17:07 ` aj at suse dot de
2013-06-03 16:05 ` carlos at redhat dot com
` (2 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: aj at suse dot de @ 2012-03-15 17:07 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13852
Andreas Jaeger <aj at suse dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #3 from Andreas Jaeger <aj at suse dot de> 2012-03-15 17:06:13 UTC ---
Fixed in git head:
2012-03-15 Andreas Jaeger <aj@suse.de>
[BZ #13852]
* sysdeps/i386/fpu/e_rem_pio2f.c: Delete so that i386 uses the
ieee754/flt-32 implementation for sin, cos and sincos.
* sysdeps/i386/fpu/k_rem_pio2f.c: Likewise.
* sysdeps/i386/fpu/s_cosf.S: Likewise.
* sysdeps/i386/fpu/s_sincosf.S: Likewise.
* sysdeps/i386/fpu/s_sinf.S: Likewise.
* sysdeps/i386/fpu/s_tanf.S: Delete so that i386 uses the
ieee754/flt-32 implementation for tan.
* math/libm-test.inc (cos_test): Enable some large input tests for
float as well
(sin_test): Likewise.
(sincos_test): Likewise.
(tan_test): Add tests for large input.
* sysdeps/i386/fpu/libm-test-ulps: Update.
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* [Bug math/13852] sincosf(), sinf(), cosf(), tanf() are incorrect for large inputs on x86
2012-03-15 13:46 [Bug math/13852] New: sincosf(), sinf(), cosf() is incorrect for large inputs on x86_64 and x86 aj at suse dot de
` (6 preceding siblings ...)
2012-03-15 17:07 ` aj at suse dot de
@ 2013-06-03 16:05 ` carlos at redhat dot com
2013-06-03 17:47 ` carlos at redhat dot com
2014-06-26 13:57 ` fweimer at redhat dot com
9 siblings, 0 replies; 11+ messages in thread
From: carlos at redhat dot com @ 2013-06-03 16:05 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13852
Carlos O'Donell <carlos at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Depends on| |15563
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* [Bug math/13852] sincosf(), sinf(), cosf(), tanf() are incorrect for large inputs on x86
2012-03-15 13:46 [Bug math/13852] New: sincosf(), sinf(), cosf() is incorrect for large inputs on x86_64 and x86 aj at suse dot de
` (7 preceding siblings ...)
2013-06-03 16:05 ` carlos at redhat dot com
@ 2013-06-03 17:47 ` carlos at redhat dot com
2014-06-26 13:57 ` fweimer at redhat dot com
9 siblings, 0 replies; 11+ messages in thread
From: carlos at redhat dot com @ 2013-06-03 17:47 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13852
Bug 13852 depends on bug 15563, which changed state.
Bug 15563 Summary: sincos() is incorrect for long double and large inputs on x86_64
http://sourceware.org/bugzilla/show_bug.cgi?id=15563
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
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* [Bug math/13852] sincosf(), sinf(), cosf(), tanf() are incorrect for large inputs on x86
2012-03-15 13:46 [Bug math/13852] New: sincosf(), sinf(), cosf() is incorrect for large inputs on x86_64 and x86 aj at suse dot de
` (8 preceding siblings ...)
2013-06-03 17:47 ` carlos at redhat dot com
@ 2014-06-26 13:57 ` fweimer at redhat dot com
9 siblings, 0 replies; 11+ messages in thread
From: fweimer at redhat dot com @ 2014-06-26 13:57 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=13852
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |security-
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2012-03-15 13:46 [Bug math/13852] New: sincosf(), sinf(), cosf() is incorrect for large inputs on x86_64 and x86 aj at suse dot de
2012-03-15 14:57 ` [Bug math/13852] sincosf(), sinf(), cosf(), tanl() are " aj at suse dot de
2012-03-15 15:00 ` [Bug math/13852] sincosf(), sinf(), cosf(), tanf() " aj at suse dot de
2012-03-15 15:09 ` aj at suse dot de
2012-03-15 15:35 ` aj at suse dot de
2012-03-15 15:39 ` aj at suse dot de
2012-03-15 15:47 ` [Bug math/13852] sincosf(), sinf(), cosf(), tanf() are incorrect for large inputs on x86 aj at suse dot de
2012-03-15 17:07 ` aj at suse dot de
2013-06-03 16:05 ` carlos at redhat dot com
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