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| author | Joseph Myers <joseph@codesourcery.com> | 2015-06-29 17:51:32 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-06-29 17:51:32 +0000 |
| commit | 4aa10d01b654b7395c6e856b8e1e0959cfc80739 (patch) | |
| tree | 01a52e164acecacf0e5b0e1851740d5defcd9d34 /NEWS | |
| parent | 63dbe5f32238858c7b953b867ed0588c7808dd4f (diff) | |
| download | glibc-4aa10d01b654b7395c6e856b8e1e0959cfc80739.tar.gz glibc-4aa10d01b654b7395c6e856b8e1e0959cfc80739.tar.xz glibc-4aa10d01b654b7395c6e856b8e1e0959cfc80739.zip | |
Fix ldbl-128 j1l spurious underflows (bug 18612).
The ldbl-128 implementation of j1l produces spurious underflow exceptions for some small arguments, as a result of squaring the argument. This patch fixes it just to use a linear approximation for sufficiently small arguments, and then to force an underflow exception only in the cases where it is required. Tested for mips64. [BZ #18612] * sysdeps/ieee754/ldbl-128/e_j1l.c (__ieee754_j1l): For small arguments, just return 0.5 times the argument, with underflow forced as needed. * math/auto-libm-test-in: Add more tests of j1. * math/auto-libm-test-out: Regenerated.
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/NEWS b/NEWS index c454e912be..08899a8162 100644 --- a/NEWS +++ b/NEWS @@ -25,7 +25,7 @@ Version 2.22 18497, 18498, 18502, 18507, 18512, 18513, 18519, 18520, 18522, 18527, 18528, 18529, 18530, 18532, 18533, 18534, 18536, 18539, 18540, 18542, 18544, 18545, 18546, 18547, 18549, 18553, 18558, 18569, 18583, 18585, - 18586, 18593, 18594, 18602. + 18586, 18593, 18594, 18602, 18612. * Cache information can be queried via sysconf() function on s390 e.g. with _SC_LEVEL1_ICACHE_SIZE as argument. |