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| author | Joseph Myers <joseph@codesourcery.com> | 2012-04-30 18:56:39 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2012-04-30 18:56:39 +0000 |
| commit | adfbc8ac9e192b6e3007f7a47852df937afa2145 (patch) | |
| tree | 09a345d547258a55e1d410065f9ca09a1bed480c /ChangeLog | |
| parent | 5ba3cc691c856e5c67a7d4cd4713f20a79f7ba81 (diff) | |
| download | glibc-adfbc8ac9e192b6e3007f7a47852df937afa2145.tar glibc-adfbc8ac9e192b6e3007f7a47852df937afa2145.tar.gz glibc-adfbc8ac9e192b6e3007f7a47852df937afa2145.tar.bz2 glibc-adfbc8ac9e192b6e3007f7a47852df937afa2145.zip | |
Fix x86 acos near 1 (bug 13942).
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -1,5 +1,15 @@ 2012-04-30 Joseph Myers <joseph@codesourcery.com> + [BZ #13942] + * sysdeps/i386/fpu/e_acos.S (__ieee754_acos): Calculate 1 - x^2 as + (1 - x) * (1 + x). + * sysdeps/i386/fpu/e_acosl.c (__ieee754_acosl): Likewise. + * sysdeps/i386/fpu/e_asin.S (__ieee754_asin): Likewise. + * math/libm-test.inc (acos_test): Add more tests. + (asin_test): Likewise. + * sysdeps/i386/fpu/libm-test-ulps: Update. + * sysdeps/x86_64/fpu/libm-test-ulps: Likewise. + [BZ #14034] * sysdeps/i386/fpu/e_acos.S (__ieee754_acos): Take absolute value of square root. |