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| author | Joseph Myers <joseph@codesourcery.com> | 2015-06-23 22:24:20 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-06-23 22:24:20 +0000 |
| commit | ad39cce0da0161dba69781c53349acf2e23f156c (patch) | |
| tree | 1c7b29a8fe9358aa720485ca439db53d6749b379 /ChangeLog | |
| parent | 8b1bab5ffa235bc494c33fdbe4c9994202936cfc (diff) | |
| download | glibc-ad39cce0da0161dba69781c53349acf2e23f156c.tar.gz glibc-ad39cce0da0161dba69781c53349acf2e23f156c.tar.xz glibc-ad39cce0da0161dba69781c53349acf2e23f156c.zip | |
Fix sin, sincos missing underflows (bug 16526, bug 16538).
Similar to various other bugs in this area, some sin and sincos 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. Tested for x86_64, x86, mips64 and powerpc. [BZ #16526] [BZ #16538] * sysdeps/ieee754/dbl-64/s_sin.c: Include <float.h>. (__sin): Force underflow exception for arguments with small absolute value. * sysdeps/ieee754/flt-32/k_sinf.c: Include <float.h>. (__kernel_sinf): Force underflow exception for arguments with small absolute value. * sysdeps/ieee754/ldbl-128/k_sincosl.c: Include <float.h>. (__kernel_sincosl): Force underflow exception for arguments with small absolute value. * sysdeps/ieee754/ldbl-128/k_sinl.c: Include <float.h>. (__kernel_sinl): Force underflow exception for arguments with small absolute value. * sysdeps/ieee754/ldbl-128ibm/k_sincosl.c: Include <float.h>. (__kernel_sincosl): Force underflow exception for arguments with small absolute value. * sysdeps/ieee754/ldbl-128ibm/k_sinl.c: Include <float.h>. (__kernel_sinl): Force underflow exception for arguments with small absolute value. * sysdeps/ieee754/ldbl-96/k_sinl.c: Include <float.h>. (__kernel_sinl): Force underflow exception for arguments with small absolute value. * sysdeps/powerpc/fpu/k_sinf.c: Include <float.h>. (__kernel_sinf): Force underflow exception for arguments with small absolute value. * math/auto-libm-test-in: Add more tests of sin and sincos. * math/auto-libm-test-out: Regenerated.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 2f07bc101b..53766d829d 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,34 @@ 2015-06-23 Joseph Myers <joseph@codesourcery.com> + [BZ #16526] + [BZ #16538] + * sysdeps/ieee754/dbl-64/s_sin.c: Include <float.h>. + (__sin): Force underflow exception for arguments with small + absolute value. + * sysdeps/ieee754/flt-32/k_sinf.c: Include <float.h>. + (__kernel_sinf): Force underflow exception for arguments with + small absolute value. + * sysdeps/ieee754/ldbl-128/k_sincosl.c: Include <float.h>. + (__kernel_sincosl): Force underflow exception for arguments with + small absolute value. + * sysdeps/ieee754/ldbl-128/k_sinl.c: Include <float.h>. + (__kernel_sinl): Force underflow exception for arguments with + small absolute value. + * sysdeps/ieee754/ldbl-128ibm/k_sincosl.c: Include <float.h>. + (__kernel_sincosl): Force underflow exception for arguments with + small absolute value. + * sysdeps/ieee754/ldbl-128ibm/k_sinl.c: Include <float.h>. + (__kernel_sinl): Force underflow exception for arguments with + small absolute value. + * sysdeps/ieee754/ldbl-96/k_sinl.c: Include <float.h>. + (__kernel_sinl): Force underflow exception for arguments with + small absolute value. + * sysdeps/powerpc/fpu/k_sinf.c: Include <float.h>. + (__kernel_sinf): Force underflow exception for arguments with + small absolute value. + * math/auto-libm-test-in: Add more tests of sin and sincos. + * math/auto-libm-test-out: Regenerated. + [BZ #18245] [BZ #18583] * sysdeps/ieee754/k_standardl.c: Include <fenv.h>. |