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* [Bug math/16519] New: Missing underflow exception from sinhf
@ 2014-02-01 9:13 zimmerma+gcc at loria dot fr
2014-02-02 20:48 ` [Bug math/16519] " zimmerma+gcc at loria dot fr
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: zimmerma+gcc at loria dot fr @ 2014-02-01 9:13 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16519
Bug ID: 16519
Summary: Missing underflow exception from sinhf
Product: glibc
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: math
Assignee: unassigned at sourceware dot org
Reporter: zimmerma+gcc at loria dot fr
Created attachment 7383
--> https://sourceware.org/bugzilla/attachment.cgi?id=7383&action=edit
test program
on x86_64 with the attached program I get:
GNU libc version: 2.18.90
GNU libc release: development
x=0x1.4p-146 (1.401298464e-44)
libc: sinhf(x)=0x1.4p-146 (1.401298464e-44) underflow=0
mpfr: sinhf(x)=0x1.4p-146 (1.401298464e-44)
ulp difference: 0.000000
The result 0x1.4p-146 is smaller than the smallest normal number, thus the
underflow exception should be raised.
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* [Bug math/16519] Missing underflow exception from sinhf
2014-02-01 9:13 [Bug math/16519] New: Missing underflow exception from sinhf zimmerma+gcc at loria dot fr
@ 2014-02-02 20:48 ` zimmerma+gcc at loria dot fr
2014-02-07 7:44 ` zimmerma+gcc at loria dot fr
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: zimmerma+gcc at loria dot fr @ 2014-02-02 20:48 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16519
--- Comment #1 from Paul Zimmermann <zimmerma+gcc at loria dot fr> ---
same in double precision with sinh(0x1p-1074) on x86_64
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* [Bug math/16519] Missing underflow exception from sinhf
2014-02-01 9:13 [Bug math/16519] New: Missing underflow exception from sinhf zimmerma+gcc at loria dot fr
2014-02-02 20:48 ` [Bug math/16519] " zimmerma+gcc at loria dot fr
@ 2014-02-07 7:44 ` zimmerma+gcc at loria dot fr
2014-06-13 8:49 ` fweimer at redhat dot com
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: zimmerma+gcc at loria dot fr @ 2014-02-07 7:44 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16519
--- Comment #2 from Paul Zimmermann <zimmerma+gcc at loria dot fr> ---
idem in extended precision:
Testing function sinh for exponent 0 [seed=8344].
rounding mode MPFR_RNDN:
wrong underflow flag for x=-1.8000000000000000@-4111
library gives -1.8000000000000000@-4111
mpfr gives -1.8000000000000000@-4111
underflow: mpfr 1, library 0
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* [Bug math/16519] Missing underflow exception from sinhf
2014-02-01 9:13 [Bug math/16519] New: Missing underflow exception from sinhf zimmerma+gcc at loria dot fr
2014-02-02 20:48 ` [Bug math/16519] " zimmerma+gcc at loria dot fr
2014-02-07 7:44 ` zimmerma+gcc at loria dot fr
@ 2014-06-13 8:49 ` fweimer at redhat dot com
2015-08-06 23:02 ` cvs-commit at gcc dot gnu.org
2015-08-06 23:03 ` jsm28 at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: fweimer at redhat dot com @ 2014-06-13 8:49 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16519
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |security-
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* [Bug math/16519] Missing underflow exception from sinhf
2014-02-01 9:13 [Bug math/16519] New: Missing underflow exception from sinhf zimmerma+gcc at loria dot fr
` (2 preceding siblings ...)
2014-06-13 8:49 ` fweimer at redhat dot com
@ 2015-08-06 23:02 ` cvs-commit at gcc dot gnu.org
2015-08-06 23:03 ` jsm28 at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2015-08-06 23:02 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16519
--- Comment #3 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "GNU C Library master sources".
The branch, master has been updated
via 5e29dd573777197fc4d12c1bdea8f6d04e505391 (commit)
from 2ba30a182ca50ac07f45ed1f813a85ccafaed85d (commit)
Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.
- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5e29dd573777197fc4d12c1bdea8f6d04e505391
commit 5e29dd573777197fc4d12c1bdea8f6d04e505391
Author: Joseph Myers <joseph@codesourcery.com>
Date: Thu Aug 6 23:01:09 2015 +0000
Fix sinh missing underflows (bug 16519).
Similar to various other bugs in this area, some sinh implementations
do not raise the underflow exception for subnormal arguments, when the
result is tiny and inexact. This patch forces the exception in a
similar way to previous fixes.
Tested for x86_64, x86, mips64 and powerpc.
[BZ #16519]
* sysdeps/ieee754/dbl-64/e_sinh.c: Include <float.h>.
(__ieee754_sinh): Force underflow exception for arguments with
small absolute value.
* sysdeps/ieee754/flt-32/e_sinhf.c: Include <float.h>.
(__ieee754_sinhf): Force underflow exception for arguments with
small absolute value.
* sysdeps/ieee754/ldbl-128/e_sinhl.c: Include <float.h>.
(__ieee754_sinhl): Force underflow exception for arguments with
small absolute value.
* sysdeps/ieee754/ldbl-128ibm/e_sinhl.c: Include <float.h>.
(__ieee754_sinhl): Force underflow exception for arguments with
small absolute value.
* sysdeps/ieee754/ldbl-96/e_sinhl.c: Include <float.h>.
(__ieee754_sinhl): Force underflow exception for arguments with
small absolute value.
* math/auto-libm-test-in: Add more tests of sinh.
* math/auto-libm-test-out: Regenerated.
* sysdeps/i386/fpu/libm-test-ulps: Update.
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 22 +++
NEWS | 2 +-
math/auto-libm-test-in | 4 +
math/auto-libm-test-out | 316 +++++++++++++++++++++++++++++++++
sysdeps/i386/fpu/libm-test-ulps | 6 +
sysdeps/ieee754/dbl-64/e_sinh.c | 11 +-
sysdeps/ieee754/flt-32/e_sinhf.c | 9 +-
sysdeps/ieee754/ldbl-128/e_sinhl.c | 12 +-
sysdeps/ieee754/ldbl-128ibm/e_sinhl.c | 9 +-
sysdeps/ieee754/ldbl-96/e_sinhl.c | 9 +-
10 files changed, 392 insertions(+), 8 deletions(-)
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* [Bug math/16519] Missing underflow exception from sinhf
2014-02-01 9:13 [Bug math/16519] New: Missing underflow exception from sinhf zimmerma+gcc at loria dot fr
` (3 preceding siblings ...)
2015-08-06 23:02 ` cvs-commit at gcc dot gnu.org
@ 2015-08-06 23:03 ` jsm28 at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2015-08-06 23:03 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=16519
Joseph Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |2.23
--- Comment #4 from Joseph Myers <jsm28 at gcc dot gnu.org> ---
Fixed for 2.23.
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2014-02-01 9:13 [Bug math/16519] New: Missing underflow exception from sinhf zimmerma+gcc at loria dot fr
2014-02-02 20:48 ` [Bug math/16519] " zimmerma+gcc at loria dot fr
2014-02-07 7:44 ` zimmerma+gcc at loria dot fr
2014-06-13 8:49 ` fweimer at redhat dot com
2015-08-06 23:02 ` cvs-commit at gcc dot gnu.org
2015-08-06 23:03 ` jsm28 at gcc dot gnu.org
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