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| author | Joseph Myers <joseph@codesourcery.com> | 2015-05-15 22:07:57 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-05-15 22:07:57 +0000 |
| commit | 8020a808870dc6199e584562b3b64f52054359e8 (patch) | |
| tree | ce9400206b43fc1db091871c50d2e5e10c78c1fb /NEWS | |
| parent | 5a608ccc2d676aa124f6b55a7b20d071e408ca31 (diff) | |
| download | glibc-8020a808870dc6199e584562b3b64f52054359e8.tar.gz glibc-8020a808870dc6199e584562b3b64f52054359e8.tar.xz glibc-8020a808870dc6199e584562b3b64f52054359e8.zip | |
Fix atanhl missing underflows (bug 16352).
Similar to various other bugs in this area, some atanh 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. (No change in this regard is needed for the i386 implementation; special handling to force underflows in these cases will only be needed there when the spurious underflows, bug 18049, get fixed.) Tested for x86_64, x86, powerpc and mips64. [BZ #16352] * sysdeps/i386/fpu/e_atanh.S (dbl_min): New object. (__ieee754_atanh): Force underflow exception for results with small absolute value. * sysdeps/i386/fpu/e_atanhf.S (flt_min): New object. (__ieee754_atanhf): Force underflow exception for results with small absolute value. * sysdeps/ieee754/dbl-64/e_atanh.c: Include <float.h>. (__ieee754_atanh): Force underflow exception for results with small absolute value. * sysdeps/ieee754/flt-32/e_atanhf.c: Include <float.h>. (__ieee754_atanhf): Force underflow exception for results with small absolute value. * sysdeps/ieee754/ldbl-128/e_atanhl.c: Include <float.h>. (__ieee754_atanhl): Force underflow exception for results with small absolute value. * sysdeps/ieee754/ldbl-128ibm/e_atanhl.c: Include <float.h>. (__ieee754_atanhl): Force underflow exception for results with small absolute value. * sysdeps/ieee754/ldbl-96/e_atanhl.c: Include <float.h>. (__ieee754_atanhl): Force underflow exception for results with small absolute value. * math/auto-libm-test-in: Do not allow missing underflow exceptions from atanh. * math/auto-libm-test-out: Regenerated.
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/NEWS b/NEWS index 44803fad66..77f6f5a1fb 100644 --- a/NEWS +++ b/NEWS @@ -10,14 +10,15 @@ Version 2.22 * The following bugs are resolved with this release: 4719, 6792, 13064, 14094, 14841, 14906, 15319, 15467, 15790, 15969, 16339, - 16351, 16512, 16560, 16704, 16783, 16850, 17090, 17195, 17269, 17523, - 17542, 17569, 17588, 17596, 17620, 17621, 17628, 17631, 17692, 17711, - 17715, 17776, 17779, 17792, 17836, 17912, 17916, 17930, 17932, 17944, - 17949, 17964, 17965, 17967, 17969, 17978, 17987, 17991, 17996, 17998, - 17999, 18007, 18019, 18020, 18029, 18030, 18032, 18036, 18038, 18039, - 18042, 18043, 18046, 18047, 18068, 18080, 18093, 18100, 18104, 18110, - 18111, 18125, 18128, 18138, 18185, 18196, 18197, 18206, 18210, 18211, - 18217, 18220, 18221, 18247, 18287, 18319, 18333, 18346, 18397, 18409. + 16351, 16352, 16512, 16560, 16704, 16783, 16850, 17090, 17195, 17269, + 17523, 17542, 17569, 17588, 17596, 17620, 17621, 17628, 17631, 17692, + 17711, 17715, 17776, 17779, 17792, 17836, 17912, 17916, 17930, 17932, + 17944, 17949, 17964, 17965, 17967, 17969, 17978, 17987, 17991, 17996, + 17998, 17999, 18007, 18019, 18020, 18029, 18030, 18032, 18036, 18038, + 18039, 18042, 18043, 18046, 18047, 18068, 18080, 18093, 18100, 18104, + 18110, 18111, 18125, 18128, 18138, 18185, 18196, 18197, 18206, 18210, + 18211, 18217, 18220, 18221, 18247, 18287, 18319, 18333, 18346, 18397, + 18409. * Cache information can be queried via sysconf() function on s390 e.g. with _SC_LEVEL1_ICACHE_SIZE as argument. |