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| author | Joseph Myers <joseph@codesourcery.com> | 2014-01-02 16:35:46 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2014-01-02 16:35:46 +0000 |
| commit | 819e5d50dd4d10dc359037eba74c70e74cb42739 (patch) | |
| tree | fe51e811c4c6bb9e91bf2ab3730d34aa8c03452c /math | |
| parent | 90b6a1e55fdbb3e6a3132742c26eb19666ad9e33 (diff) | |
| download | glibc-819e5d50dd4d10dc359037eba74c70e74cb42739.tar.gz glibc-819e5d50dd4d10dc359037eba74c70e74cb42739.tar.xz glibc-819e5d50dd4d10dc359037eba74c70e74cb42739.zip | |
Fix ldbl-128ibm logl inaccuracy (bug 16386).
This patch fixes bug 16386, ldbl-128ibm logl inaccuracy (with consequent inaccuracy for lgammal) for arguments where the high double is subnormal, which showed up while attempting to regenerate ulps for powerpc-nofpu for 2.19. The problem here is logic failing to allow for subnormals when calculating the exponent of the argument. Tested for powerpc-nofpu. * sysdeps/ieee754/ldbl-128ibm/e_logl.c (__ieee754_logl): Adjust numbers with subnormal high part when calculating exponent.
Diffstat (limited to 'math')
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