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[Bug math/887] Math library function "logb" and "nextafter" inconsistent
- From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Tue, 07 Jan 2014 22:43:15 +0000
- Subject: [Bug math/887] Math library function "logb" and "nextafter" inconsistent
- Auto-submitted: auto-generated
- References: <bug-887-131 at http dot sourceware dot org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=887
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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a5a326f660c020a4f85ce2ca2a3a2ccb4be7a058
commit a5a326f660c020a4f85ce2ca2a3a2ccb4be7a058
Author: Joseph Myers <joseph@codesourcery.com>
Date: Tue Jan 7 22:41:58 2014 +0000
Mark more libm tests with xfail-rounding:ldbl-128ibm.
This patch marks more libm tests as expected to fail for ldbl-128ibm
in non-default rounding modes. Given this, my expm1l fix
<https://sourceware.org/ml/libc-alpha/2014-01/msg00135.html> and my
libgcc fix <http://gcc.gnu.org/ml/gcc-patches/2014-01/msg00157.html>
for spurious overflows, the remaining failures in test-ldouble.out
(for powerpc32 hard float) are small ulps, spurious underflow and
inexact exceptions (the former probably arising from libgcc bugs
though I haven't checked each case; the latter are barely meaningful
for this format anyway when basic arithmetic isn't correctly rounding,
though most of them are probably GCC bug 59412 which doesn't actually
involve long double), missing underflow exceptions from clog, ctan and
ctanh (probably one of the known bugs for another function), and logb
in round-downward mode (bug 887, though it's really a GCC bug that
we're not currently working around).
Tested for powerpc32 hard float.
* math/auto-libm-test-in: Mark various tests with
xfail-rounding:ldbl-128ibm.
* math/auto-libm-test-out: Regenerated.
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 4 +
math/auto-libm-test-in | 40 ++-
math/auto-libm-test-out | 832 +++++++++++++++++++++++-----------------------
3 files changed, 443 insertions(+), 433 deletions(-)
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