glibc/sysdeps
Joseph Myers 396e3ecf3e Fix ldbl-128ibm acoshl inaccuracy (bug 16384).
This patch fixes bug 16384, ldbl-128ibm acoshl inaccuracy, which
showed up while attempting to regenerate ulps for powerpc-nofpu for
2.19.  There were two separate problems, use of __log1p instead of
__log1pl and an insufficiently accurate constant value for log 2
(which this patch replaces by use of M_LN2l), each of which could
cause substantial inaccuracy in affected cases.

Tested for powerpc-nofpu.

	* sysdeps/ieee754/ldbl-128ibm/e_acoshl.c (ln2): Initialize with
	M_LN2l.
	(__ieee754_acoshl): Use __log1pl not __log1p.
2014-01-02 16:33:06 +00:00
..
generic Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
gnu Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
i386 Regenerate x86 / x86_64 ulps. 2014-01-01 14:34:38 +00:00
ieee754 Fix ldbl-128ibm acoshl inaccuracy (bug 16384). 2014-01-02 16:33:06 +00:00
init_array Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
mach Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
posix Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
powerpc Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
pthread Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s390 Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
sh Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
sparc Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
unix Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
wordsize-32 Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
wordsize-64 Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
x86 Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
x86_64 Regenerate x86 / x86_64 ulps. 2014-01-01 14:34:38 +00:00