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glibc/sysdeps/i386/fpu
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Joseph Myers 600fa36158 Fix nextafter overflow in non-default rounding modes (bug 16677). 
ISO C requires the result of nextafter to be independent of the
rounding mode, even when underflow or overflow occurs.  This patch
fixes the bug in various nextafter implementations that, having done
an overflowing computation to force an overflow exception (correct),
they then return the result of that computation rather than an
infinity computed some other way (incorrect, when the overflowing
result of arithmetic with that sign and rounding mode is finite but
the correct result is infinite) - generally by falling through to
existing code to return a value that in fact is correct for this case
(but was computed by an integer increment and so without generating
the exceptions required).  Having fixed the bug, the previously
deferred conversion of nextafter testing in libm-test.inc to
ALL_RM_TEST is also included.

Tested x86_64 and x86; also spot-checked results of nextafter tests
for powerpc32 and mips64 to test the ldbl-128ibm and ldbl-128
changes.  (The m68k change is untested.)

	[BZ #16677]
	* math/s_nextafter.c (__nextafter): Do not return value from
	overflowing computation.
	* sysdeps/i386/fpu/s_nextafterl.c (__nextafterl): Likewise.
	* sysdeps/ieee754/flt-32/s_nextafterf.c (__nextafterf): Likewise.
	* sysdeps/ieee754/ldbl-128/s_nextafterl.c (__nextafterl):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c (__nextafterl):
	Likewise.
	* sysdeps/m68k/m680x0/fpu/s_nextafterl.c (__nextafterl): Likewise.
	* math/libm-test.inc (nextafter_test): Use ALL_RM_TEST.
2014-03-11 22:24:00 +00:00
..
doasin.c
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 Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
e_acoshf.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
e_acoshl.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
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 Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
e_atanhf.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
e_atanhl.S Update copyright notices with scripts/update-copyrights 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 / expl10l wild results in directed rounding modes (bug 16356). 2013-12-21 13:07:16 +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 Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
e_hypotf.S Update copyright notices with scripts/update-copyrights 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 Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}. 2012-08-02 21:04:29 +02:00
e_logf.S Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}. 2012-08-02 21:04:29 +02:00
e_logl.S Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}. 2012-08-02 21:04:29 +02:00
e_pow.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
e_powf.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
e_powl.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
e_rem_pio2.c
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 Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
fedisblxcpt.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
feenablxcpt.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
fegetenv.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
fegetexcept.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
fegetround.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
feholdexcpt.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
fenv_private.h Set/restore rounding mode only when needed 2013-06-12 10:36:48 +05:30
fesetenv.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
fesetround.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
feupdateenv.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
fgetexcptflg.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
fraiseexcpt.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
fsetexcptflg.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
ftestexcept.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
halfulp.c
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
libm-test-ulps Don't include individual test ulps in libm-test-ulps. 2014-03-05 15:02:38 +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
mpatan.c
mpexp.c
mplog.c
mpsqrt.c
s_asinh.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_asinhf.S Update copyright notices with scripts/update-copyrights 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
s_atanf.S
s_atanl.c
s_cbrt.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_cbrtf.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_cbrtl.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_ceil.S
s_ceilf.S
s_ceill.S
s_copysign.S
s_copysignf.S
s_copysignl.S
s_expm1.S Update copyright notices with scripts/update-copyrights 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
s_fabsf.S
s_fabsl.S
s_fdim.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_fdimf.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_fdiml.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_finite.S
s_finitef.S
s_finitel.S
s_floor.S
s_floorf.S
s_floorl.S
s_fmax.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_fmaxf.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_fmaxl.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_fmin.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_fminf.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_fminl.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_fpclassifyl.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_frexp.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_frexpf.S Update copyright notices with scripts/update-copyrights 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 Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_llrintf.S Update copyright notices with scripts/update-copyrights 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
s_logbf.S
s_logbl.c
s_lrint.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_lrintf.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_lrintl.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_nearbyint.S
s_nearbyintf.S
s_nearbyintl.S
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
s_rintf.S
s_rintl.c
s_scalbln.c
s_scalblnf.c
s_scalblnl.c
s_scalbn.S
s_scalbnf.S
s_scalbnl.S
s_significand.S
s_significandf.S
s_significandl.c
s_trunc.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_truncf.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
s_truncl.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
slowexp.c
slowpow.c
t_exp.c
Versions
w_sqrt.c Fix x86 sqrt rounding (bug 14032). 2013-11-29 16:31:16 +00:00