glibc/sysdeps/ieee754/flt-32
Joseph Myers 37d83a089d Fix tanh missing underflows (bug 16520).
Similar to various other bugs in this area, some tanh 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 #16520]
	* sysdeps/ieee754/dbl-64/s_tanh.c: Include <float.h>.
	(__tanh): Force underflow exception for arguments with small
	absolute value.
	* sysdeps/ieee754/flt-32/s_tanhf.c: Include <float.h>.
	(__tanhf): Force underflow exception for arguments with small
	absolute value.
	* sysdeps/ieee754/ldbl-128/s_tanhl.c: Include <float.h>.
	(__tanhl): Force underflow exception for arguments with small
	absolute value.
	* sysdeps/ieee754/ldbl-128ibm/s_tanhl.c: Include <float.h>.
	(__tanhl): Force underflow exception for arguments with small
	absolute value.
	* sysdeps/ieee754/ldbl-96/s_tanhl.c: Include <float.h>.
	(__tanhl): Force underflow exception for arguments with small
	absolute value.
	* math/auto-libm-test-in: Add more tests of tanh.
	* math/auto-libm-test-out: Regenerated.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
2015-08-13 16:40:39 +00:00
..
e_acosf.c
e_acoshf.c
e_asinf.c Fix asin missing underflows (bug 16351). 2015-02-26 17:18:54 +00:00
e_atan2f.c
e_atanhf.c Fix atanhl missing underflows (bug 16352). 2015-05-15 22:07:57 +00:00
e_coshf.c
e_exp2f.c Fix exp2, exp2f spurious underflows (bug 18219). 2015-06-23 14:35:18 +00:00
e_expf.c This patch renames all uses of __isinf*, __isnan*, __finite* and __signbit* to use standard C99 macros. This has no effect on generated code. 2015-06-03 15:41:36 +01:00
e_fmodf.c
e_gammaf_r.c Improve tgamma accuracy (bug 18613). 2015-06-29 23:29:35 +00:00
e_hypotf.c
e_ilogbf.c
e_j0f.c Avoid uninitialized warnings in Bessel functions. 2015-02-26 21:49:19 +00:00
e_j1f.c Fix j1, jn missing underflows (bug 16559). 2015-06-29 16:52:16 +00:00
e_jnf.c Fix j1, jn missing underflows (bug 16559). 2015-06-29 16:52:16 +00:00
e_lgammaf_r.c Fix lgamma implementations for -Wuninitialized. 2015-05-21 23:44:33 +00:00
e_log2f.c
e_log10f.c
e_logf.c
e_powf.c Fix powf (close to -1, large) (bug 18647). 2015-08-05 15:01:58 +00:00
e_rem_pio2f.c
e_remainderf.c
e_sinhf.c Fix sinh missing underflows (bug 16519). 2015-08-06 23:01:09 +00:00
e_sqrtf.c
k_cosf.c
k_rem_pio2f.c
k_sinf.c Fix sin, sincos missing underflows (bug 16526, bug 16538). 2015-06-23 22:24:20 +00:00
k_tanf.c Fix tan missing underflows (bug 16517). 2015-08-07 23:10:35 +00:00
math_private.h
mpn2flt.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_asinhf.c Fix asinh missing underflows (bug 16350). 2015-06-18 23:27:41 +00:00
s_atanf.c Fix atanf spurious underflows (bug 18196). 2015-05-14 23:51:09 +00:00
s_cbrtf.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_ceilf.c
s_copysignf.c
s_cosf.c
s_erff.c Fix erfcf spurious underflows (bug 18217). 2015-05-15 00:16:10 +00:00
s_expm1f.c Fix expm1 missing underflows (bug 16353). 2015-06-22 21:06:19 +00:00
s_fabsf.c 2015-05-28 Wilco Dijkstra <wdijkstr@arm.com> 2015-05-28 11:42:55 +01:00
s_finitef.c
s_floorf.c
s_fpclassifyf.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_frexpf.c
s_isinf_nsf.c
s_isinff.c
s_isnanf.c
s_issignalingf.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_llrintf.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_llroundf.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_log1pf.c Fix log1p missing underflows (bug 16339). 2015-05-14 23:38:07 +00:00
s_logbf.c
s_lrintf.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_lroundf.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_modff.c
s_nearbyintf.c
s_nextafterf.c
s_remquof.c Fix sign of remquo zero remainder in round-downward mode (bug 17987). 2015-02-17 00:41:50 +00:00
s_rintf.c
s_roundf.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_scalblnf.c
s_scalbnf.c
s_signbitf.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_sincosf.c Fix sincos errno setting (bug 15467). 2015-02-11 23:17:25 +00:00
s_sinf.c
s_tanf.c
s_tanhf.c Fix tanh missing underflows (bug 16520). 2015-08-13 16:40:39 +00:00
s_truncf.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
t_exp2f.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
w_expf.c This patch renames all uses of __isinf*, __isnan*, __finite* and __signbit* to use standard C99 macros. This has no effect on generated code. 2015-06-03 15:41:36 +01:00