AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-11-24 22:10:13 +00:00
Code Issues Packages Projects Releases Wiki Activity
a23aa5b727
glibc/sysdeps/ieee754/ldbl-128
History
Joseph Myers a23aa5b727 Add _Float64x function aliases. 
This patch continues filling out TS 18661-3 support by adding *f64x
function aliases on platforms with _Float64x support.  (It so happens
the set of such platforms is exactly the same as the set of platforms
with _Float128 support, although on x86_64, x86 and ia32 the _Float64x
format is Intel extended rather than binary128.)  The API provided
corresponds exactly to that provided for _Float128, mostly coming from
TS 18661-3.  As these functions always alias those for another type
(long double, _Float128 or both), __* function names are not provided,
as in other cases of alias types.

Given the preparation done in previous patches, this one just enables
the feature via Makeconfig and bits/floatn.h, adds symbol versions,
and updates documentation and ABI baselines.  The symbol versions are
present unconditionally as GLIBC_2.27 in the relevant Versions files,
as it's OK for those to specify versions for functions that may not be
present in some configurations; no additional complexity is needed
unless in future some configuration gains support for this type that
didn't have such support in 2.27.  The Makeconfig additions for ia64
and x86 aren't strictly needed, as those configurations also get
float64x-alias-fcts definitions from
sysdeps/ieee754/float128/Makeconfig, but still seem appropriate given
that _Float64x is not _Float128 for those configurations.

A libm-test-ulps update for x86 is included.  This is because
bits/mathinline.h does not have _Float64x support added and for two
functions the use of out-of-line functions results in increased ulps
(ifloat64x shares ulps with ildouble / ifloat128 as appropriate).
Given that we'd like generally to eliminate bits/mathinline.h
optimizations, preferring to have such optimizations in GCC instead,
it seems reasonable not to add such support there for new types.  GCC
support for _FloatN / _FloatNx built-in functions is limited, but has
been improved in GCC 8, and at some point I hope the full set of libm
built-in functions in GCC, and other optimizations with
per-floating-type aspects, will be enabled for all _FloatN / _FloatNx
types.

Tested for x86_64 and x86, and with build-many-glibcs.py, with both
GCC 6 and GCC 7.

	* sysdeps/ia64/Makeconfig (float64x-alias-fcts): New variable.
	* sysdeps/ieee754/float128/Makeconfig (float64x-alias-fcts):
	Likewise.
	* sysdeps/ieee754/ldbl-128/Makeconfig (float64x-alias-fcts):
	Likewise.
	* sysdeps/x86/Makeconfig: New file.
	* bits/floatn-common.h (__HAVE_FLOAT64X): Remove macro.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* bits/floatn.h (__HAVE_FLOAT64X): New macro.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/ia64/bits/floatn.h (__HAVE_FLOAT64X): Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/ieee754/ldbl-128/bits/floatn.h (__HAVE_FLOAT64X):
	Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/mips/ieee754/bits/floatn.h (__HAVE_FLOAT64X): Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/powerpc/bits/floatn.h (__HAVE_FLOAT64X): Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/x86/bits/floatn.h (__HAVE_FLOAT64X): Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* manual/math.texi (Mathematics): Document support for _Float64x.
	* math/Versions (GLIBC_2.27): Add _Float64x functions.
	* stdlib/Versions (GLIBC_2.27): Likewise.
	* wcsmbs/Versions (GLIBC_2.27): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
	* sysdeps/i386/fpu/libm-test-ulps: Likewise.
	* sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.
2017-11-27 14:16:47 +00:00
..
bits Add _Float64x function aliases. 2017-11-27 14:16:47 +00:00
e_acoshl.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
e_acosl.c ldbl-128: Use L(x) macro for long double constants 2016-09-13 15:33:59 -05:00
e_asinl.c ldbl-128: Use L(x) macro for long double constants 2016-09-13 15:33:59 -05:00
e_atan2l.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
e_atanhl.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
e_coshl.c ldbl-128: Use L(x) macro for long double constants 2016-09-13 15:33:59 -05:00
e_exp10l.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
e_expl.c Fix cexpl when compiled with latest GCC 2017-07-21 09:47:57 -07:00
e_fmodl.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
e_gammal_r.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
e_hypotl.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
e_ilogbl.c ldbl-128: Rename 'long double' to '_Float128' 2016-08-31 10:38:11 -05:00
e_j0l.c Fix y0 and y1 exception handling for zero input [BZ #21134] 2017-02-15 10:30:59 -02:00
e_j1l.c Fix y0 and y1 exception handling for zero input [BZ #21134] 2017-02-15 10:30:59 -02:00
e_jnl.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
e_lgammal_r.c Use fabs(f/l) rather than __fabs 2017-09-29 18:54:24 +01:00
e_log2l.c Use fabs(f/l) rather than __fabs 2017-09-29 18:54:24 +01:00
e_log10l.c Use fabs(f/l) rather than __fabs 2017-09-29 18:54:24 +01:00
e_logl.c Remove unneeded declarations from math_private.h 2017-04-10 12:20:47 -03:00
e_powl.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
e_rem_pio2l.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
e_remainderl.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
e_sinhl.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
float128-abi.h Add _Float128 function aliases. 2017-10-18 17:37:18 +00:00
gamma_productl.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ieee754.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
k_cosl.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
k_sincosl.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
k_sinl.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
k_tanl.c Narrowing the visibility of libc-internal.h even further. 2017-03-01 20:33:46 -05:00
ldbl2mpn.c float128: Add conversion from float128 to mpn 2017-06-07 17:03:43 -03:00
lgamma_negl.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
lgamma_productl.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Makeconfig Add _Float64x function aliases. 2017-11-27 14:16:47 +00:00
Makefile * sysdeps/ieee754/ldbl-128/Makefile: New file. 2007-03-14 17:36:18 +00:00
math_ldbl.h Allow direct use of math_ldbl.h in testsuite. 2017-02-25 10:40:48 -05:00
mpn2ldbl.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
printf_fphex_macros.h Refactor PRINT_FPHEX_LONG_DOUBLE into a reusable macro 2017-06-07 17:06:31 -03:00
printf_fphex.c Refactor PRINT_FPHEX_LONG_DOUBLE into a reusable macro 2017-06-07 17:06:31 -03:00
s_asinhl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_atanl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_cbrtl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_ceill.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_copysignl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_cosl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_erfl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_expm1l.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_fabsl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_finitel.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
s_floorl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_fma.c Use libm_alias_double in ldbl-128, ldbl-96 fma. 2017-10-06 20:23:58 +00:00
s_fmal.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_fpclassifyl.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
s_frexpl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_fromfpl_main.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_fromfpl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_fromfpxl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_getpayloadl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_isinfl.c ldbl-128: Use mathx_hidden_def inplace of hidden_def 2017-05-04 14:47:27 -03:00
s_isnanl.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
s_issignalingl.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
s_llrintl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_llroundl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_log1pl.c ldbl-128: Use L(x) macro for long double constants 2016-09-13 15:33:59 -05:00
s_logbl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_lrintl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_lroundl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_modfl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_nearbyintl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_nextafterl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_nexttoward.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
s_nexttowardf.c Consistently use uintN_t not u_intN_t in libm. 2017-08-03 19:55:04 +00:00
s_nextupl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_remquol.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_rintl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_roundevenl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_roundl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_scalblnl.c ldbl-128: Use L(x) macro for long double constants 2016-09-13 15:33:59 -05:00
s_scalbnl.c ldbl-128: Use L(x) macro for long double constants 2016-09-13 15:33:59 -05:00
s_setpayloadl_main.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_setpayloadl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_setpayloadsigl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_signbitl.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
s_sincosl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_sinl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_tanhl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_tanl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_totalorderl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_totalordermagl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_truncl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_ufromfpl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
s_ufromfpxl.c Use libm_alias_ldouble for ldbl-128 functions. 2017-10-06 17:45:05 +00:00
strtod_nan_ldouble.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtold_l.c Support strtof64x, wcstof64x aliases. 2017-11-24 22:51:53 +00:00
t_expl.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
t_sincosl.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
x2y2m1l.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00