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13 Commits

Author SHA1 Message Date
Joseph Myers
04277e02d7 Update copyright dates with scripts/update-copyrights. 
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
 2019-01-01 00:11:28 +00:00
Joseph Myers
9755bc4686 Use round functions not __round functions in glibc libm. 
Continuing the move to use, within libm, public names for libm
functions that can be inlined as built-in functions on many
architectures, this patch moves calls to __round functions to call the
corresponding round names instead, with asm redirection to __round
when the calls are not inlined.

An additional complication arises in
sysdeps/ieee754/ldbl-128ibm/e_expl.c, where a call to roundl, with the
result converted to int, gets converted by the compiler to call
lroundl in the case of 32-bit long, so resulting in localplt test
failures.  It's logically correct to let the compiler make such an
optimization; an appropriate asm redirection of lroundl to __lroundl
is thus added to that file (it's not needed anywhere else).

Tested for x86_64, and with build-many-glibcs.py.

	* include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ &&
	__FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (round): Redirect
	using MATH_REDIRECT.
	* sysdeps/aarch64/fpu/s_round.c: Define NO_MATH_REDIRECT before
	header inclusion.
	* sysdeps/aarch64/fpu/s_roundf.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_round.c: Likewise.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_round.c: Likewise.
	* sysdeps/ieee754/float128/s_roundf128.c: Likewise.
	* sysdeps/ieee754/flt-32/s_roundf.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_roundl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_roundl.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_round.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_roundf.c: Likewise.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_round.c: Likewise.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_roundf.c: Likewise.
	* sysdeps/riscv/rv64/rvd/s_round.c: Likewise.
	* sysdeps/riscv/rvf/s_roundf.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_roundl.c: Likewise.
	(round): Redirect to __round.
	(__roundl): Call round instead of __round.
	* sysdeps/powerpc/fpu/math_private.h [_ARCH_PWR5X] (__round):
	Remove macro.
	[_ARCH_PWR5X] (__roundf): Likewise.
	* sysdeps/ieee754/dbl-64/e_gamma_r.c (gamma_positive): Use round
	functions instead of __round variants.
	* sysdeps/ieee754/flt-32/e_gammaf_r.c (gammaf_positive): Likewise.
	* sysdeps/ieee754/ldbl-128/e_gammal_r.c (gammal_positive):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (gammal_positive):
	Likewise.
	* sysdeps/ieee754/ldbl-96/e_gammal_r.c (gammal_positive):
	Likewise.
	* sysdeps/x86/fpu/powl_helper.c (__powl_helper): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_expl.c (lroundl): Redirect to
	__lroundl.
	(__ieee754_expl): Call roundl instead of __roundl.
 2018-09-27 12:35:23 +00:00
Joseph Myers
8f5b00d375 Move math_check_force_underflow macros to separate math-underflow.h. 
This patch continues cleaning up math_private.h by moving the
math_check_force_underflow set of macros to a separate header
math-underflow.h.

This header is included by the files that need it rather than from
math_private.h.  Moving these macros to a separate file removes the
math_private.h uses of macros from float.h, so the inclusion of
float.h in math_private.h is also removed; files that were depending
on that inclusion are fixed to include float.h directly.  The
inclusion of math-barriers.h from math_private.h will be removed in a
separate patch.

Tested for x86_64 and x86.  Also tested with build-many-glibcs.py that
installed stripped shared libraries are unchanged by this patch.

	* math/math-underflow.h: New file.
	* sysdeps/generic/math_private.h: Do not include <float.h>.
	(fabs_tg): Remove macro.  Moved to math-underflow.h.
	(min_of_type_f): Likewise.
	(min_of_type_): Likewise.
	(min_of_type_l): Likewise.
	(min_of_type_f128): Likewise.
	(min_of_type): Likewise.
	(math_check_force_underflow): Likewise.
	(math_check_force_underflow_nonneg): Likewise.
	(math_check_force_underflow_complex): Likewise.
	* math/e_exp2_template.c: Include <math-underflow.h>.
	* math/k_casinh_template.c: Likewise.
	* math/s_catan_template.c: Likewise.
	* math/s_catanh_template.c: Likewise.
	* math/s_ccosh_template.c: Likewise.
	* math/s_cexp_template.c: Likewise.
	* math/s_clog10_template.c: Likewise.
	* math/s_clog_template.c: Likewise.
	* math/s_csin_template.c: Likewise.
	* math/s_csinh_template.c: Likewise.
	* math/s_csqrt_template.c: Likewise.
	* math/s_ctan_template.c: Likewise.
	* math/s_ctanh_template.c: Likewise.
	* sysdeps/ieee754/dbl-64/e_asin.c: Likewise.
	* sysdeps/ieee754/dbl-64/e_atanh.c: Likewise.
	* sysdeps/ieee754/dbl-64/e_exp2.c: Likewise.
	* sysdeps/ieee754/dbl-64/e_gamma_r.c: Likewise.
	* sysdeps/ieee754/dbl-64/e_hypot.c: Likewise.
	* sysdeps/ieee754/dbl-64/e_j1.c: Likewise.
	* sysdeps/ieee754/dbl-64/e_jn.c: Likewise.
	* sysdeps/ieee754/dbl-64/e_pow.c: Likewise.
	* sysdeps/ieee754/dbl-64/e_sinh.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_asinh.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_atan.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_erf.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_expm1.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_log1p.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_sin.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_sincos.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_tan.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_tanh.c: Likewise.
	* sysdeps/ieee754/flt-32/e_asinf.c: Likewise.
	* sysdeps/ieee754/flt-32/e_atanhf.c: Likewise.
	* sysdeps/ieee754/flt-32/e_gammaf_r.c: Likewise.
	* sysdeps/ieee754/flt-32/e_j1f.c: Likewise.
	* sysdeps/ieee754/flt-32/e_jnf.c: Likewise.
	* sysdeps/ieee754/flt-32/e_sinhf.c: Likewise.
	* sysdeps/ieee754/flt-32/k_sinf.c: Likewise.
	* sysdeps/ieee754/flt-32/k_tanf.c: Likewise.
	* sysdeps/ieee754/flt-32/s_asinhf.c: Likewise.
	* sysdeps/ieee754/flt-32/s_atanf.c: Likewise.
	* sysdeps/ieee754/flt-32/s_erff.c: Likewise.
	* sysdeps/ieee754/flt-32/s_expm1f.c: Likewise.
	* sysdeps/ieee754/flt-32/s_log1pf.c: Likewise.
	* sysdeps/ieee754/flt-32/s_tanhf.c: Likewise.
	* sysdeps/ieee754/ldbl-128/e_asinl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/e_atanhl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/e_expl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/e_gammal_r.c: Likewise.
	* sysdeps/ieee754/ldbl-128/e_hypotl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/e_j1l.c: Likewise.
	* sysdeps/ieee754/ldbl-128/e_jnl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/e_sinhl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/k_sincosl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/k_sinl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/k_tanl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_asinhl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_atanl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_erfl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_expm1l.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_log1pl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_tanhl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_asinl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_atanhl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_hypotl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_j1l.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_jnl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_powl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_sinhl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/k_sincosl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/k_sinl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/k_tanl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_asinhl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_atanl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_erfl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_fmal.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_tanhl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/e_asinl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/e_atanhl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/e_gammal_r.c: Likewise.
	* sysdeps/ieee754/ldbl-96/e_hypotl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/e_j1l.c: Likewise.
	* sysdeps/ieee754/ldbl-96/e_jnl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/e_sinhl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/k_sinl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/k_tanl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_asinhl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_erfl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_tanhl.c: Likewise.
	* sysdeps/powerpc/fpu/e_hypot.c: Likewise.
	* sysdeps/x86/fpu/powl_helper.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_nextup.c: Include <float.h>.
	* sysdeps/ieee754/flt-32/s_nextupf.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_nextupl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_nextupl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_nextupl.c: Likewise.
 2018-05-10 00:53:04 +00:00
Joseph Myers
688903eb3e Update copyright dates with scripts/update-copyrights. 
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
 2018-01-01 00:32:25 +00:00
Joseph Myers
24ab7723b8 Consistently use uintN_t not u_intN_t in libm. 
This patch changes libm code to make consistent use of C99 uintN_t
types instead of sometimes using those and sometimes using the older
nonstandard u_intN_t names.  This makes sense as a cleanup in its own
right, and also facilitates merges to GCC's libquadmath (which gets
the types from stdint.h and so may not have u_intN_t available at
all).

Tested for x86_64, and with build-many-glibcs.py.

	* math/s_nextafter.c (__nextafter): Use uintN_t instead of
	u_intN_t.
	* math/s_nexttowardf.c (__nexttowardf): Likewise.
	* sysdeps/generic/math_private.h (ieee_double_shape_type):
	Likewise.
	(ieee_float_shape_type): Likewise.
	* sysdeps/i386/fpu/s_fpclassifyl.c (__fpclassifyl): Likewise.
	* sysdeps/i386/fpu/s_isnanl.c (__isnanl): Likewise.
	* sysdeps/i386/fpu/s_nextafterl.c (__nextafterl): Likewise.
	* sysdeps/i386/fpu/s_nexttoward.c (__nexttoward): Likewise.
	* sysdeps/i386/fpu/s_nexttowardf.c (__nexttowardf): Likewise.
	* sysdeps/ieee754/dbl-64/e_acosh.c (__ieee754_acosh): Likewise.
	* sysdeps/ieee754/dbl-64/e_cosh.c (__ieee754_cosh): Likewise.
	* sysdeps/ieee754/dbl-64/e_fmod.c (__ieee754_fmod): Likewise.
	* sysdeps/ieee754/dbl-64/e_gamma_r.c (__ieee754_gamma_r):
	Likewise.
	* sysdeps/ieee754/dbl-64/e_hypot.c (__ieee754_hypot): Likewise.
	* sysdeps/ieee754/dbl-64/e_jn.c (__ieee754_jn): Likewise.
	(__ieee754_yn): Likewise.
	* sysdeps/ieee754/dbl-64/e_log10.c (__ieee754_log10): Likewise.
	* sysdeps/ieee754/dbl-64/e_log2.c (__ieee754_log2): Likewise.
	* sysdeps/ieee754/dbl-64/e_rem_pio2.c (__ieee754_rem_pio2):
	Likewise.
	* sysdeps/ieee754/dbl-64/e_sinh.c (__ieee754_sinh): Likewise.
	* sysdeps/ieee754/dbl-64/s_ceil.c (__ceil): Likewise.
	* sysdeps/ieee754/dbl-64/s_copysign.c (__copysign): Likewise.
	* sysdeps/ieee754/dbl-64/s_erf.c (__erf): Likewise.
	(__erfc): Likewise.
	* sysdeps/ieee754/dbl-64/s_expm1.c (__expm1): Likewise.
	* sysdeps/ieee754/dbl-64/s_finite.c (FINITE): Likewise.
	* sysdeps/ieee754/dbl-64/s_floor.c (__floor): Likewise.
	* sysdeps/ieee754/dbl-64/s_fpclassify.c (__fpclassify): Likewise.
	* sysdeps/ieee754/dbl-64/s_isnan.c (__isnan): Likewise.
	* sysdeps/ieee754/dbl-64/s_issignaling.c (__issignaling):
	Likewise.
	* sysdeps/ieee754/dbl-64/s_llrint.c (__llrint): Likewise.
	* sysdeps/ieee754/dbl-64/s_llround.c (__llround): Likewise.
	* sysdeps/ieee754/dbl-64/s_lrint.c (__lrint): Likewise.
	* sysdeps/ieee754/dbl-64/s_lround.c (__lround): Likewise.
	* sysdeps/ieee754/dbl-64/s_modf.c (__modf): Likewise.
	* sysdeps/ieee754/dbl-64/s_nextup.c (__nextup): Likewise.
	* sysdeps/ieee754/dbl-64/s_remquo.c (__remquo): Likewise.
	* sysdeps/ieee754/dbl-64/s_round.c (__round): Likewise.
	* sysdeps/ieee754/dbl-64/s_trunc.c (__trunc): Likewise.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_issignaling.c
	(__issignaling): Likewise.
	* sysdeps/ieee754/flt-32/e_atan2f.c (__ieee754_atan2f): Likewise.
	* sysdeps/ieee754/flt-32/e_fmodf.c (__ieee754_fmodf): Likewise.
	* sysdeps/ieee754/flt-32/e_gammaf_r.c (__ieee754_gammaf_r):
	Likewise.
	* sysdeps/ieee754/flt-32/e_jnf.c (__ieee754_ynf): Likewise.
	* sysdeps/ieee754/flt-32/e_log10f.c (__ieee754_log10f): Likewise.
	* sysdeps/ieee754/flt-32/e_powf.c (__ieee754_powf): Likewise.
	* sysdeps/ieee754/flt-32/e_rem_pio2f.c (__ieee754_rem_pio2f):
	Likewise.
	* sysdeps/ieee754/flt-32/e_remainderf.c (__ieee754_remainderf):
	Likewise.
	* sysdeps/ieee754/flt-32/e_sqrtf.c (__ieee754_sqrtf): Likewise.
	* sysdeps/ieee754/flt-32/s_ceilf.c (__ceilf): Likewise.
	* sysdeps/ieee754/flt-32/s_copysignf.c (__copysignf): Likewise.
	* sysdeps/ieee754/flt-32/s_erff.c (__erff): Likewise.
	(__erfcf): Likewise.
	* sysdeps/ieee754/flt-32/s_expm1f.c (__expm1f): Likewise.
	* sysdeps/ieee754/flt-32/s_finitef.c (FINITEF): Likewise.
	* sysdeps/ieee754/flt-32/s_floorf.c (__floorf): Likewise.
	* sysdeps/ieee754/flt-32/s_fpclassifyf.c (__fpclassifyf):
	Likewise.
	* sysdeps/ieee754/flt-32/s_isnanf.c (__isnanf): Likewise.
	* sysdeps/ieee754/flt-32/s_issignalingf.c (__issignalingf):
	Likewise.
	* sysdeps/ieee754/flt-32/s_llrintf.c (__llrintf): Likewise.
	* sysdeps/ieee754/flt-32/s_llroundf.c (__llroundf): Likewise.
	* sysdeps/ieee754/flt-32/s_lrintf.c (__lrintf): Likewise.
	* sysdeps/ieee754/flt-32/s_lroundf.c (__lroundf): Likewise.
	* sysdeps/ieee754/flt-32/s_modff.c (__modff): Likewise.
	* sysdeps/ieee754/flt-32/s_remquof.c (__remquof): Likewise.
	* sysdeps/ieee754/flt-32/s_roundf.c (__roundf): Likewise.
	* sysdeps/ieee754/ldbl-128/e_acoshl.c (__ieee754_acoshl):
	Likewise.
	* sysdeps/ieee754/ldbl-128/e_atan2l.c (__ieee754_atan2l):
	Likewise.
	* sysdeps/ieee754/ldbl-128/e_atanhl.c (__ieee754_atanhl):
	Likewise.
	* sysdeps/ieee754/ldbl-128/e_fmodl.c (__ieee754_fmodl): Likewise.
	* sysdeps/ieee754/ldbl-128/e_gammal_r.c (__ieee754_gammal_r):
	Likewise.
	* sysdeps/ieee754/ldbl-128/e_hypotl.c (__ieee754_hypotl):
	Likewise.
	* sysdeps/ieee754/ldbl-128/e_jnl.c (__ieee754_jnl): Likewise.
	(__ieee754_ynl): Likewise.
	* sysdeps/ieee754/ldbl-128/e_powl.c (__ieee754_powl): Likewise.
	* sysdeps/ieee754/ldbl-128/e_rem_pio2l.c (__ieee754_rem_pio2l):
	Likewise.
	* sysdeps/ieee754/ldbl-128/e_remainderl.c (__ieee754_remainderl):
	Likewise.
	* sysdeps/ieee754/ldbl-128/e_sinhl.c (__ieee754_sinhl): Likewise.
	* sysdeps/ieee754/ldbl-128/k_cosl.c (__kernel_cosl): Likewise.
	* sysdeps/ieee754/ldbl-128/k_sincosl.c (__kernel_sincosl):
	Likewise.
	* sysdeps/ieee754/ldbl-128/k_sinl.c (__kernel_sinl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_ceill.c (__ceill): Likewise.
	* sysdeps/ieee754/ldbl-128/s_copysignl.c (__copysignl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_erfl.c (__erfcl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_fabsl.c (__fabsl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_finitel.c (__finitel): Likewise.
	* sysdeps/ieee754/ldbl-128/s_floorl.c (__floorl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_fpclassifyl.c (__fpclassifyl):
	Likewise.
	* sysdeps/ieee754/ldbl-128/s_frexpl.c (__frexpl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_isnanl.c (__isnanl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_issignalingl.c (__issignalingl):
	Likewise.
	* sysdeps/ieee754/ldbl-128/s_llrintl.c (__llrintl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_llroundl.c (__llroundl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_lrintl.c (__lrintl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_lroundl.c (__lroundl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_modfl.c (__modfl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_nearbyintl.c (__nearbyintl):
	Likewise.
	* sysdeps/ieee754/ldbl-128/s_nextafterl.c (__nextafterl):
	Likewise.
	* sysdeps/ieee754/ldbl-128/s_nexttoward.c (__nexttoward):
	Likewise.
	* sysdeps/ieee754/ldbl-128/s_nexttowardf.c (__nexttowardf):
	Likewise.
	* sysdeps/ieee754/ldbl-128/s_nextupl.c (__nextupl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_remquol.c (__remquol): Likewise.
	* sysdeps/ieee754/ldbl-128/s_rintl.c (__rintl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_roundl.c (__roundl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_tanhl.c (__tanhl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_truncl.c (__truncl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_fmodl.c (__ieee754_fmodl):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (__ieee754_gammal_r):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_powl.c (__ieee754_powl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_rem_pio2l.c (__ieee754_rem_pio2l):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_remainderl.c
	(__ieee754_remainderl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/k_cosl.c (__kernel_cosl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/k_sinl.c (__kernel_sinl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_fabsl.c (__fabsl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_fpclassifyl.c (___fpclassifyl):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_modfl.c (__modfl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_nexttowardf.c (__nexttowardf):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_remquol.c (__remquol): Likewise.
	* sysdeps/ieee754/ldbl-96/e_acoshl.c (__ieee754_acoshl): Likewise.
	* sysdeps/ieee754/ldbl-96/e_asinl.c (__ieee754_asinl): Likewise.
	* sysdeps/ieee754/ldbl-96/e_atanhl.c (__ieee754_atanhl): Likewise.
	* sysdeps/ieee754/ldbl-96/e_coshl.c (__ieee754_coshl): Likewise.
	* sysdeps/ieee754/ldbl-96/e_gammal_r.c (__ieee754_gammal_r):
	Likewise.
	* sysdeps/ieee754/ldbl-96/e_hypotl.c (__ieee754_hypotl): Likewise.
	* sysdeps/ieee754/ldbl-96/e_j0l.c (__ieee754_j0l): Likewise.
	(__ieee754_y0l): Likewise.
	(pzero): Likewise.
	(qzero): Likewise.
	* sysdeps/ieee754/ldbl-96/e_j1l.c (__ieee754_j1l): Likewise.
	(__ieee754_y1l): Likewise.
	(pone): Likewise.
	(qone): Likewise.
	* sysdeps/ieee754/ldbl-96/e_jnl.c (__ieee754_jnl): Likewise.
	(__ieee754_ynl): Likewise.
	* sysdeps/ieee754/ldbl-96/e_lgammal_r.c (sin_pi): Likewise.
	(__ieee754_lgammal_r): Likewise.
	* sysdeps/ieee754/ldbl-96/e_rem_pio2l.c (__ieee754_rem_pio2l):
	Likewise.
	* sysdeps/ieee754/ldbl-96/e_sinhl.c (__ieee754_sinhl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_copysignl.c (__copysignl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_erfl.c (__erfl): Likewise.
	(__erfcl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_frexpl.c (__frexpl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_issignalingl.c (__issignalingl):
	Likewise.
	* sysdeps/ieee754/ldbl-96/s_llrintl.c (__llrintl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_llroundl.c (__llroundl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_lrintl.c (__lrintl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_lroundl.c (__lroundl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_modfl.c (__modfl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_nexttoward.c (__nexttoward): Likewise.
	* sysdeps/ieee754/ldbl-96/s_nexttowardf.c (__nexttowardf):
	Likewise.
	* sysdeps/ieee754/ldbl-96/s_nextupl.c (__nextupl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_remquol.c (__remquol): Likewise.
	* sysdeps/ieee754/ldbl-96/s_roundl.c (__roundl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_tanhl.c (__tanhl): Likewise.
	* sysdeps/ieee754/ldbl-opt/s_nexttowardfd.c (__nldbl_nexttowardf):
	Likewise.
	* sysdeps/m68k/m680x0/fpu/e_pow.c (s(__ieee754_pow)): Likewise.
	* sysdeps/m68k/m680x0/fpu/s_fpclassifyl.c (__fpclassifyl):
	Likewise.
	* sysdeps/m68k/m680x0/fpu/s_llrint.c (__llrint): Likewise.
	* sysdeps/m68k/m680x0/fpu/s_llrintf.c (__llrintf): Likewise.
	* sysdeps/m68k/m680x0/fpu/s_llrintl.c (__llrintl): Likewise.
	* sysdeps/m68k/m680x0/fpu/s_nextafterl.c (__nextafterl): Likewise.
	* sysdeps/x86/fpu/powl_helper.c (__powl_helper): Likewise.
 2017-08-03 19:55:04 +00:00
Joseph Myers
bfff8b1bec Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Joseph Myers
f7a9f785e5 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Joseph Myers
6ace393821 Fix pow missing underflows (bug 18825). 
Similar to various other bugs in this area, pow functions can fail to
raise the underflow exception when the result is tiny and inexact but
one or more low bits of the intermediate result that is scaled down
(or, in the i386 case, converted from a wider evaluation format) are
zero.  This patch forces the exception in a similar way to previous
fixes, thereby concluding the fixes for known bugs with missing
underflow exceptions currently filed in Bugzilla.

Tested for x86_64, x86, mips64 and powerpc.

	[BZ #18825]
	* sysdeps/i386/fpu/i386-math-asm.h (FLT_NARROW_EVAL_UFLOW_NONNAN):
	New macro.
	(DBL_NARROW_EVAL_UFLOW_NONNAN): Likewise.
	(LDBL_CHECK_FORCE_UFLOW_NONNAN): Likewise.
	* sysdeps/i386/fpu/e_pow.S: Use DEFINE_DBL_MIN.
	(__ieee754_pow): Use DBL_NARROW_EVAL_UFLOW_NONNAN instead of
	DBL_NARROW_EVAL, reloading the PIC register as needed.
	* sysdeps/i386/fpu/e_powf.S: Use DEFINE_FLT_MIN.
	(__ieee754_powf): Use FLT_NARROW_EVAL_UFLOW_NONNAN instead of
	FLT_NARROW_EVAL.  Use separate return path for case when first
	argument is NaN.
	* sysdeps/i386/fpu/e_powl.S: Include <i386-math-asm.h>.  Use
	DEFINE_LDBL_MIN.
	(__ieee754_powl): Use LDBL_CHECK_FORCE_UFLOW_NONNAN, reloading the
	PIC register.
	* sysdeps/ieee754/dbl-64/e_pow.c (__ieee754_pow): Use
	math_check_force_underflow_nonneg.
	* sysdeps/ieee754/flt-32/e_powf.c (__ieee754_powf): Force
	underflow for subnormal result.
	* sysdeps/ieee754/ldbl-128/e_powl.c (__ieee754_powl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_powl.c (__ieee754_powl): Use
	math_check_force_underflow_nonneg.
	* sysdeps/x86/fpu/powl_helper.c (__powl_helper): Use
	math_check_force_underflow.
	* sysdeps/x86_64/fpu/x86_64-math-asm.h
	(LDBL_CHECK_FORCE_UFLOW_NONNAN): New macro.
	* sysdeps/x86_64/fpu/e_powl.S: Include <x86_64-math-asm.h>.  Use
	DEFINE_LDBL_MIN.
	(__ieee754_powl): Use LDBL_CHECK_FORCE_UFLOW_NONNAN.
	* math/auto-libm-test-in: Add more tests of pow.
	* math/auto-libm-test-out: Regenerated.
 2015-09-25 22:29:10 +00:00
Joseph Myers
b168057aaa Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Joseph Myers
4da6db5188 Fix pow overflow in non-default rounding modes (bug 16315). 
This patch fixes bug 16315, bad pow handling of overflow/underflow in
non-default rounding modes.  Tests of pow are duly converted to
ALL_RM_TEST to run all tests in all rounding modes.

There are two main issues here.  First, various implementations
compute a negative result by negating a positive result, but this
yields inappropriate overflow / underflow values for directed
rounding, so either overflow / underflow results need recomputing in
the correct sign, or the relevant overflowing / underflowing operation
needs to be made to have a result of the correct sign.  Second, the
dbl-64 implementation sets FE_TONEAREST internally; in the overflow /
underflow case, the result needs recomputing in the original rounding
mode.

Tested x86_64 and x86 and ulps updated accordingly.

	[BZ #16315]
	* sysdeps/i386/fpu/e_pow.S (__ieee754_pow): Ensure possibly
	overflowing or underflowing operations take place with sign of
	result.
	* sysdeps/i386/fpu/e_powf.S (__ieee754_powf): Likewise.
	* sysdeps/i386/fpu/e_powl.S (__ieee754_powl): Likewise.
	* sysdeps/ieee754/dbl-64/e_pow.c: Include <math.h>.
	(__ieee754_pow): Recompute overflowing and underflowing results in
	original rounding mode.
	* sysdeps/x86/fpu/powl_helper.c: Include <stdbool.h>.
	(__powl_helper): Allow negative argument X and scale negated value
	as needed.  Avoid passing value outside [-1, 1] to f2xm1.
	* sysdeps/x86_64/fpu/e_powl.S (__ieee754_powl): Ensure possibly
	overflowing or underflowing operations take place with sign of
	result.
	* sysdeps/x86_64/fpu/multiarch/e_pow.c [HAVE_FMA4_SUPPORT]:
	Include <math.h>.
	* math/auto-libm-test-in: Add more tests of pow.
	* math/auto-libm-test-out: Regenerated.
	* math/libm-test.inc (pow_test): Use ALL_RM_TEST.
	(pow_tonearest_test_data): Remove.
	(pow_test_tonearest): Likewise.
	(pow_towardzero_test_data): Likewise.
	(pow_test_towardzero): Likewise.
	(pow_downward_test_data): Likewise.
	(pow_test_downward): Likewise.
	(pow_upward_test_data): Likewise.
	(pow_test_upward): Likewise.
	(main): Don't call removed functions.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
 2014-06-23 20:12:33 +00:00
Allan McRae
d4697bc93d Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Joseph Myers
568035b787 Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
Joseph Myers
1bead169c3 Fix powl inaccuracy for x86_64 and x86 (bug 13881). 2012-11-28 13:40:54 +00:00