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| author | Joseph Myers <joseph@codesourcery.com> | 2016-06-08 22:24:06 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2016-06-08 22:24:06 +0000 |
| commit | df179d88080ad7a733edccc655cf5f6bbec6f8fc (patch) | |
| tree | d1f7b50279ad7221529019078ad2a170fcea5aaf /login/updwtmp.c | |
| parent | 9bd3ef8e19b19fb3cfcf99a33a1493035891b990 (diff) | |
| download | glibc-df179d88080ad7a733edccc655cf5f6bbec6f8fc.tar.gz glibc-df179d88080ad7a733edccc655cf5f6bbec6f8fc.tar.xz glibc-df179d88080ad7a733edccc655cf5f6bbec6f8fc.zip | |
Fix i386/x86_64 logl (sNaN) (bug 20227).
The i386/x86_64 versions of logl return sNaN for sNaN input. This patch fixes them to add a NaN input to itself so that qNaN is returned in this case. Tested for x86_64 and x86 (including a build for i586 to cover the non-i686 logl version). [BZ #20227] * sysdeps/i386/fpu/e_logl.S (__ieee754_logl): Add NaN input to itself. * sysdeps/i386/i686/fpu/e_logl.S (__ieee754_logl): Likewise. * sysdeps/x86_64/fpu/e_logl.S (__ieee754_logl): Likewise. * math/libm-test.inc (log_test_data): Add sNaN tests.
Diffstat (limited to 'login/updwtmp.c')
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