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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 /math/auto-libm-test-in | |
| 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 'math/auto-libm-test-in')
| -rw-r--r-- | math/auto-libm-test-in | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/math/auto-libm-test-in b/math/auto-libm-test-in index d1502ad107..6545583480 100644 --- a/math/auto-libm-test-in +++ b/math/auto-libm-test-in @@ -2317,6 +2317,10 @@ sin 0x1.2001469775ce6p32 sin -0x3.3de320f6be87ep+1020 sin 0xe.9f1e5bc3bb88p+112 sin 0x4.7857dp+68 +sin min +sin -min +sin min_subnorm +sin -min_subnorm sincos 0 sincos -0 @@ -2339,6 +2343,10 @@ sincos 0x1p+28 sincos -0x3.3de320f6be87ep+1020 sincos 0xe.9f1e5bc3bb88p+112 sincos 0x4.7857dp+68 +sincos min +sincos -min +sincos min_subnorm +sincos -min_subnorm sinh 0 sinh -0 |