Joseph Myers 01dbacd22a Fix cacos (+Inf + finite*i) in round-downward mode (bug 16928). ...

According to C99/C11 Annex G, cacos applied to a value with real part
+Inf and finite imaginary part should produce a result with real part
+0.  glibc wrongly produces a result with real part -0 in FE_DOWNWARD
mode.  This patch fixes this by checking for zero results in the
relevant case of non-finite arguments (where there should never be a
result with -0 real part), and converts the tests of cacos to
ALL_RM_TEST.

Tested x86_64 and x86 and ulps updated accordingly.

	[BZ #16928]
	* math/s_cacos.c (__cacos): Ensure zero real part of result from
	non-finite arguments is +0.
	* math/s_cacosf.c (__cacosf): Likewise.
	* math/s_cacosl.c (__cacosl): Likewise.
	* math/libm-test.inc (cacos_test): Use ALL_RM_TEST.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.

2014-05-14 12:37:24 +00:00

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doasin.c

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e_acos.S

Fix x86 acos near 1 (bug 13942).

2012-04-30 18:56:39 +00:00

e_acosf.S

Fix acos (-1) in round-downwards mode on x86 (bug 14034).

2012-04-30 09:38:06 +00:00

e_acosh.S

Fix acosh (1) in round-downward mode (bug 16927).

2014-05-14 12:35:40 +00:00

e_acoshf.S

Fix acosh (1) in round-downward mode (bug 16927).

2014-05-14 12:35:40 +00:00

e_acoshl.S

Fix acosh (1) in round-downward mode (bug 16927).

2014-05-14 12:35:40 +00:00

e_acosl.c

Fix x86 acos near 1 (bug 13942).

2012-04-30 18:56:39 +00:00

e_asin.S

Fix x86 acos near 1 (bug 13942).

2012-04-30 18:56:39 +00:00

e_asinf.S

Optimize libm

2011-10-12 11:27:51 -04:00

e_atan2.S

Optimize libm

2011-10-12 11:27:51 -04:00

e_atan2f.S

Optimize libm

2011-10-12 11:27:51 -04:00

e_atan2l.c

Optimize libm

2011-10-12 11:27:51 -04:00

e_atanh.S

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2014-01-01 22:00:23 +10:00

e_atanhf.S

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2014-01-01 22:00:23 +10:00

e_atanhl.S

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2014-01-01 22:00:23 +10:00

e_exp2.S

Optimize libm

2011-10-12 11:27:51 -04:00

e_exp2f.S

Optimize libm

2011-10-12 11:27:51 -04:00

e_exp2l.S

Optimize libm

2011-10-12 11:27:51 -04:00

e_exp10.S

Optimize libm

2011-10-12 11:27:51 -04:00

e_exp10f.S

Optimize libm

2011-10-12 11:27:51 -04:00

e_exp10l.S

Fix exp10 inaccuracy and exceptions (bugs 13884, 13914).

2012-05-06 18:23:44 +00:00

e_exp.S

Optimize exp

2011-10-15 20:22:59 -04:00

e_expf.S

Optimize exp

2011-10-15 20:22:59 -04:00

e_expl.S

Fix x86/x86_64 expl/exp10l spurious underflows (bug 16348).

2014-03-27 18:41:14 +00:00

e_fmod.S

Optimize libm

2011-10-12 11:27:51 -04:00

e_fmodf.S

Optimize libm

2011-10-12 11:27:51 -04:00

e_fmodl.c

Optimize libm

2011-10-12 11:27:51 -04:00

e_hypot.S

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2014-01-01 22:00:23 +10:00

e_hypotf.S

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2014-01-01 22:00:23 +10:00

e_ilogb.S

Remove useless __ilogb*_finite aliases

2012-04-18 00:40:13 +02:00

e_ilogbf.S

Remove useless __ilogb*_finite aliases

2012-04-18 00:40:13 +02:00

e_ilogbl.S

Remove useless __ilogb*_finite aliases

2012-04-18 00:40:13 +02:00

e_log2.S

Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}.

2012-08-02 21:04:29 +02:00

e_log2f.S

Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}.

2012-08-02 21:04:29 +02:00

e_log2l.S

Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}.

2012-08-02 21:04:29 +02:00

e_log10.S

Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}.

2012-08-02 21:04:29 +02:00

e_log10f.S

Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}.

2012-08-02 21:04:29 +02:00

e_log10l.S

Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}.

2012-08-02 21:04:29 +02:00

e_log.S

Fix log (1) in round-downward mode (bug 16731).

2014-03-21 18:13:58 +00:00

e_logf.S

Fix log (1) in round-downward mode (bug 16731).

2014-03-21 18:13:58 +00:00

e_logl.S

Fix log (1) in round-downward mode (bug 16731).

2014-03-21 18:13:58 +00:00

e_pow.S

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2014-01-01 22:00:23 +10:00

e_powf.S

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2014-01-01 22:00:23 +10:00

e_powl.S

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2014-01-01 22:00:23 +10:00

e_rem_pio2.c

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e_remainder.S

Optimize libm

2011-10-12 11:27:51 -04:00

e_remainderf.S

Optimize libm

2011-10-12 11:27:51 -04:00

e_remainderl.S

Optimize libm

2011-10-12 11:27:51 -04:00

e_scalb.S

Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}.

2012-08-02 21:04:29 +02:00

e_scalbf.S

Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}.

2012-08-02 21:04:29 +02:00

e_scalbl.S

Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}.

2012-08-02 21:04:29 +02:00

e_sqrt.S

Fix x86 sqrt rounding (bug 14032).

2013-11-29 16:31:16 +00:00

e_sqrtf.S

Optimize libm

2011-10-12 11:27:51 -04:00

e_sqrtl.c

Optimize libm

2011-10-12 11:27:51 -04:00

fclrexcpt.c

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2014-01-01 22:00:23 +10:00

fedisblxcpt.c

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2014-01-01 22:00:23 +10:00

feenablxcpt.c

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2014-01-01 22:00:23 +10:00

fegetenv.c

Include SSE state in i386 fenv_t (bug 16064).

2014-05-09 16:59:56 +00:00

fegetexcept.c

Update copyright notices with scripts/update-copyrights

2014-01-01 22:00:23 +10:00

fegetround.c

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2014-01-01 22:00:23 +10:00

feholdexcpt.c

Include SSE state in i386 fenv_t (bug 16064).

2014-05-09 16:59:56 +00:00

fenv_private.h

Set/restore rounding mode only when needed

2013-06-12 10:36:48 +05:30

fesetenv.c

Include SSE state in i386 fenv_t (bug 16064).

2014-05-09 16:59:56 +00:00

fesetround.c

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2014-01-01 22:00:23 +10:00

feupdateenv.c

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2014-01-01 22:00:23 +10:00

fgetexcptflg.c

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fraiseexcpt.c

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fsetexcptflg.c

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2014-01-01 22:00:23 +10:00

ftestexcept.c

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2014-01-01 22:00:23 +10:00

halfulp.c

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Implies

Use x86_64 fpu/bits/fenv.h for i386 and x86_64

2012-06-06 10:13:19 -07:00

k_rem_pio2l.c

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libm-test-ulps

Fix cacos (+Inf + finite*i) in round-downward mode (bug 16928).

2014-05-14 12:37:24 +00:00

math_private.h

Optimize private 387 fenv access; share code between i386 and x86_64.

2012-03-19 06:51:39 -07:00

math-tests.h

Update copyright notices with scripts/update-copyrights

2014-01-01 22:00:23 +10:00

mpatan2.c

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mpatan.c

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mpexp.c

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mplog.c

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mpsqrt.c

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s_asinh.S

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2014-01-01 22:00:23 +10:00

s_asinhf.S

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2014-01-01 22:00:23 +10:00

s_asinhl.S

Update copyright notices with scripts/update-copyrights

2014-01-01 22:00:23 +10:00

s_atan.S

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s_atanf.S

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s_atanl.c

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s_cbrt.S

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2014-01-01 22:00:23 +10:00

s_cbrtf.S

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2014-01-01 22:00:23 +10:00

s_cbrtl.S

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2014-01-01 22:00:23 +10:00

s_ceil.S

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s_ceilf.S

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s_ceill.S

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s_copysign.S

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s_copysignf.S

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s_copysignl.S

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s_expm1.S

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2014-01-01 22:00:23 +10:00

s_expm1f.S

Update copyright notices with scripts/update-copyrights

2014-01-01 22:00:23 +10:00

s_expm1l.S

Fix x86/x86_64 expm1l inaccuracy and exceptions (bugs 13885, 13923).

2012-05-07 19:13:08 +00:00

s_fabs.S

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s_fabsf.S

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s_fabsl.S

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s_fdim.S

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2014-01-01 22:00:23 +10:00

s_fdimf.S

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s_fdiml.S

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2014-01-01 22:00:23 +10:00

s_finite.S

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s_finitef.S

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s_finitel.S

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s_floor.S

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s_floorf.S

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s_floorl.S

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s_fmax.S

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2014-01-01 22:00:23 +10:00

s_fmaxf.S

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s_fmaxl.S

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s_fmin.S

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s_fminf.S

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s_fminl.S

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2014-01-01 22:00:23 +10:00

s_fpclassifyl.c

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s_frexp.S

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s_frexpf.S

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2014-01-01 22:00:23 +10:00

s_frexpl.S

Update copyright notices with scripts/update-copyrights

2014-01-01 22:00:23 +10:00

s_isinfl.c

Use <> for math.h and math_private.h everywhere.

2012-03-09 16:09:10 -08:00

s_isnanl.c

Use <> for math.h and math_private.h everywhere.

2012-03-09 16:09:10 -08:00

s_llrint.S

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2014-01-01 22:00:23 +10:00

s_llrintf.S

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2014-01-01 22:00:23 +10:00

s_llrintl.S

Update copyright notices with scripts/update-copyrights

2014-01-01 22:00:23 +10:00

s_log1p.S

Remove __ELF__ conditionals

2012-02-07 00:41:11 +01:00

s_log1pf.S

Remove __ELF__ conditionals

2012-02-07 00:41:11 +01:00

s_log1pl.S

Remove __ELF__ conditionals

2012-02-07 00:41:11 +01:00

s_logb.S

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s_logbf.S

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s_logbl.c

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s_lrint.S

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2014-01-01 22:00:23 +10:00

s_lrintf.S

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2014-01-01 22:00:23 +10:00

s_lrintl.S

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2014-01-01 22:00:23 +10:00

s_nearbyint.S

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s_nearbyintf.S

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s_nearbyintl.S

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s_nextafterl.c

Fix nextafter overflow in non-default rounding modes (bug 16677).

2014-03-11 22:24:00 +00:00

s_nexttoward.c

Fix nexttoward bugs (bugs 2550, 2570).

2012-05-01 15:37:43 +00:00

s_nexttowardf.c

Fix nexttoward bugs (bugs 2550, 2570).

2012-05-01 15:37:43 +00:00

s_remquo.S

Remove remaining bounded-pointers support from i386 .S files.

2013-02-21 22:21:52 +00:00

s_remquof.S

Remove remaining bounded-pointers support from i386 .S files.

2013-02-21 22:21:52 +00:00

s_remquol.S

Remove remaining bounded-pointers support from i386 .S files.

2013-02-21 22:21:52 +00:00

s_rint.S

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s_rintf.S

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s_rintl.c

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s_scalbln.c

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s_scalblnf.c

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s_scalblnl.c

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s_scalbn.S

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s_scalbnf.S

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s_scalbnl.S

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s_significand.S

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s_significandf.S

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s_significandl.c

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s_trunc.S

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2014-01-01 22:00:23 +10:00

s_truncf.S

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s_truncl.S

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2014-01-01 22:00:23 +10:00

slowexp.c

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slowpow.c

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t_exp.c

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Versions

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w_sqrt.c

Fix x86 sqrt rounding (bug 14032).

2013-11-29 16:31:16 +00:00