Joseph Myers 440169d681 Fix ldbl-128ibm acoshl inaccuracy (bug 18019). ... The ldbl-128ibm implementation of acoshl uses a cut-off of 0x1p28 to determine when to use log(x) + log(2) as a formula. That cut-off is too small for this format, resulting in large errors. This patch changes it to a more appropriate cut-off of 0x1p56, adding tests around the cut-offs for various floating-point formats. Tested for powerpc. Also tested for x86_64 and x86 and updated ulps. [BZ #18019] * sysdeps/ieee754/ldbl-128ibm/e_acoshl.c (__ieee754_acoshl): Use 2**56 not 2**28 as threshold for log (2x) formula. * math/auto-libm-test-in: Add more tests of acosh. * math/auto-libm-test-out: Regenerated. * sysdeps/i386/fpu/libm-test-ulps: Update. * sysdeps/x86_64/fpu/libm-test-ulps: Likewise.		2015-02-25 00:01:15 +00:00
..
bits	Update copyright dates with scripts/update-copyrights.	2015-01-02 16:29:47 +00:00
dbl-64	Fix atan / atan2 missing underflows (bug 15319).	2015-02-18 21:10:49 +00:00
flt-32	Fix atan / atan2 missing underflows (bug 15319).	2015-02-18 21:10:49 +00:00
ldbl-64-128	Update copyright dates with scripts/update-copyrights.	2015-01-02 16:29:47 +00:00
ldbl-96	Fix sign of remquo zero remainder in round-downward mode (bug 17987).	2015-02-17 00:41:50 +00:00
ldbl-128	Fix atan / atan2 missing underflows (bug 15319).	2015-02-18 21:10:49 +00:00
ldbl-128ibm	Fix ldbl-128ibm acoshl inaccuracy (bug 18019).	2015-02-25 00:01:15 +00:00
ldbl-opt	Update copyright dates with scripts/update-copyrights.	2015-01-02 16:29:47 +00:00
ieee754.h	Update copyright dates with scripts/update-copyrights.	2015-01-02 16:29:47 +00:00
k_standard.c	Split __kernel_standard* functions (fixes bug 17724).	2014-12-22 18:45:50 +00:00
k_standardf.c	Update copyright dates with scripts/update-copyrights.	2015-01-02 16:29:47 +00:00
k_standardl.c	Update copyright dates with scripts/update-copyrights.	2015-01-02 16:29:47 +00:00
Makefile
s_lib_version.c
s_matherr.c
s_signgam.c
support.c