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54142c44e9
glibc/sysdeps/ieee754/dbl-64
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Joseph Myers 54142c44e9 Use math_narrow_eval more consistently. 
Where glibc code needs to avoid excess range and precision in
floating-point arithmetic, code variously uses either asms or volatile
to force the results of that arithmetic to memory; mostly this is
conditional on FLT_EVAL_METHOD, but in the case of lrint / llrint
functions some use of volatile is unconditional (and is present
unnecessarily in versions for long double).  This patch make such code
use the recently-added math_narrow_eval macro consistently, removing
the unnecessary uses of volatile in long double lrint / llrint
implementations completely.

Tested for x86_64, x86, mips64 and powerpc.

	* math/s_nexttowardf.c (__nexttowardf): Use math_narrow_eval.
	* stdlib/strtod_l.c: Include <math_private.h>.
	(overflow_value): Use math_narrow_eval.
	(underflow_value): Likewise.
	* sysdeps/i386/fpu/s_nexttoward.c (__nexttoward): Likewise.
	* sysdeps/i386/fpu/s_nexttowardf.c (__nexttowardf): Likewise.
	* sysdeps/ieee754/dbl-64/e_gamma_r.c (gamma_positive): Likewise.
	(__ieee754_gamma_r): Likewise.
	* sysdeps/ieee754/dbl-64/gamma_productf.c (__gamma_productf):
	Likewise.
	* sysdeps/ieee754/dbl-64/k_rem_pio2.c (__kernel_rem_pio2):
	Likewise.
	* sysdeps/ieee754/dbl-64/lgamma_neg.c (__lgamma_neg): Likewise.
	* sysdeps/ieee754/dbl-64/s_erf.c (__erfc): Likewise.
	* sysdeps/ieee754/dbl-64/s_llrint.c (__llrint): Likewise.
	* sysdeps/ieee754/dbl-64/s_lrint.c (__lrint): Likewise.
	* sysdeps/ieee754/flt-32/e_gammaf_r.c (gammaf_positive): Likewise.
	(__ieee754_gammaf_r): Likewise.
	* sysdeps/ieee754/flt-32/k_rem_pio2f.c (__kernel_rem_pio2f):
	Likewise.
	* sysdeps/ieee754/flt-32/lgamma_negf.c (__lgamma_negf): Likewise.
	* sysdeps/ieee754/flt-32/s_erff.c (__erfcf): Likewise.
	* sysdeps/ieee754/flt-32/s_llrintf.c (__llrintf): Likewise.
	* sysdeps/ieee754/flt-32/s_lrintf.c (__lrintf): Likewise.
	* sysdeps/ieee754/ldbl-128/s_llrintl.c (__llrintl): Do not use
	volatile.
	* sysdeps/ieee754/ldbl-128/s_lrintl.c (__lrintl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_nexttoward.c (__nexttoward): Use
	math_narrow_eval.
	* sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c (__nexttoward):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_nexttowardf.c (__nexttowardf):
	Likewise.
	* sysdeps/ieee754/ldbl-96/gamma_product.c (__gamma_product):
	Likewise.
	* sysdeps/ieee754/ldbl-96/s_llrintl.c (__llrintl): Do not use
	volatile.
	* sysdeps/ieee754/ldbl-96/s_lrintl.c (__lrintl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_nexttoward.c (__nexttoward): Use
	math_narrow_eval.
	* sysdeps/ieee754/ldbl-96/s_nexttowardf.c (__nexttowardf):
	Likewise.
	* sysdeps/ieee754/ldbl-opt/s_nexttowardfd.c (__nldbl_nexttowardf):
	Likewise.
2015-09-23 18:14:57 +00:00
..
wordsize-64 Since we now inline isinf, isnan and isfinite in math.h, replace uses of __isinf_ns(l/f) 2015-09-18 20:51:52 +01:00
asincos.tbl Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
atnat2.h Fix several build failures with GCC6 due to unused static variables. 2015-09-18 20:42:54 +01:00
atnat.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
branred.c Remove various ABS macros and replace uses with fabs (or in one case abs) 2015-05-15 11:04:40 +00:00
branred.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
dbl2mpn.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
dla.h Remove various ABS macros and replace uses with fabs (or in one case abs) 2015-05-15 11:04:40 +00:00
doasin.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
doasin.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
dosincos.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
dosincos.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
e_acos.c Update. 2001-03-12 00:04:52 +00:00
e_acosh.c Format floating routines. 2013-10-17 16:03:24 +02:00
e_asin.c Remove various ABS macros and replace uses with fabs (or in one case abs) 2015-05-15 11:04:40 +00:00
e_atan2.c Fix dbl-64 atan2 in non-default rounding modes (bug 18210, bug 18211). 2015-04-08 17:32:17 +00:00
e_atanh.c Fix atanhl missing underflows (bug 16352). 2015-05-15 22:07:57 +00:00
e_cosh.c Avoid excess range overflowing results from cosh, sinh, lgamma (bug 18980). 2015-09-18 20:00:48 +00:00
e_exp2.c Fix exp2 missing underflows (bug 16521). 2015-09-14 22:00:12 +00:00
e_exp10.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_exp.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_fmod.c Use glibc_likely instead __builtin_expect. 2014-02-10 15:07:12 +01:00
e_gamma_r.c Use math_narrow_eval more consistently. 2015-09-23 18:14:57 +00:00
e_hypot.c Use glibc_likely instead __builtin_expect. 2014-02-10 15:07:12 +01:00
e_ilogb.c Format floating routines. 2013-10-17 16:03:24 +02:00
e_j0.c Avoid uninitialized warnings in Bessel functions. 2015-02-26 21:49:19 +00:00
e_j1.c Fix j1, jn missing underflows (bug 16559). 2015-06-29 16:52:16 +00:00
e_jn.c Fix j1, jn missing underflows (bug 16559). 2015-06-29 16:52:16 +00:00
e_lgamma_r.c Avoid excess range overflowing results from cosh, sinh, lgamma (bug 18980). 2015-09-18 20:00:48 +00:00
e_log2.c Use glibc_likely instead __builtin_expect. 2014-02-10 15:07:12 +01:00
e_log10.c Use glibc_likely instead __builtin_expect. 2014-02-10 15:07:12 +01:00
e_log.c Remove various ABS macros and replace uses with fabs (or in one case abs) 2015-05-15 11:04:40 +00:00
e_pow.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_rem_pio2.c Format floating routines. 2013-10-17 16:03:24 +02:00
e_remainder.c Remove various ABS macros and replace uses with fabs (or in one case abs) 2015-05-15 11:04:40 +00:00
e_sinh.c Avoid excess range overflowing results from cosh, sinh, lgamma (bug 18980). 2015-09-18 20:00:48 +00:00
e_sqrt.c Fix libm fegetround namespace (bug 17748). 2015-01-02 20:44:42 +00:00
gamma_product.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
gamma_productf.c Use math_narrow_eval more consistently. 2015-09-23 18:14:57 +00:00
halfulp.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
k_cos.c Update. 2001-03-12 00:04:52 +00:00
k_rem_pio2.c Use math_narrow_eval more consistently. 2015-09-23 18:14:57 +00:00
k_sin.c Update. 2001-03-12 00:04:52 +00:00
k_tan.c Replace sysdeps/ieee754/dbl-64/k_tan.c with empty file 2012-02-26 16:10:46 +01:00
lgamma_neg.c Use math_narrow_eval more consistently. 2015-09-23 18:14:57 +00:00
lgamma_product.c Fix lgamma (negative) inaccuracy (bug 2542, bug 2543, bug 2558). 2015-09-10 22:27:58 +00:00
Makefile powerpc: Fix incorrect results for pow when using FMA 2015-03-10 09:38:54 -04:00
MathLib.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
mpa-arch.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
mpa.c Fix sysdeps/ieee754/dbl-64/mpa.c for -Wuninitialized. 2015-05-21 23:05:45 +00:00
mpa.h Remove various ABS macros and replace uses with fabs (or in one case abs) 2015-05-15 11:04:40 +00:00
mpatan2.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
mpatan.c Remove various ABS macros and replace uses with fabs (or in one case abs) 2015-05-15 11:04:40 +00:00
mpatan.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
mpexp.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
mplog.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
mpn2dbl.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
mpsqrt.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
mpsqrt.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
mptan.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
mydefs.h Remove various ABS macros and replace uses with fabs (or in one case abs) 2015-05-15 11:04:40 +00:00
powtwo.tbl Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
root.tbl Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_asinh.c Fix asinh missing underflows (bug 16350). 2015-06-18 23:27:41 +00:00
s_atan.c Fix dbl-64 atan in non-default rounding modes (bug 18197). 2015-04-08 17:14:12 +00:00
s_cbrt.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_ceil.c Format floating routines. 2013-10-17 16:03:24 +02:00
s_copysign.c Format floating routines. 2013-10-17 16:03:24 +02:00
s_cos.c Update. 2001-03-12 00:04:52 +00:00
s_erf.c Use math_narrow_eval more consistently. 2015-09-23 18:14:57 +00:00
s_expm1.c Fix expm1 missing underflows (bug 16353). 2015-06-22 21:06:19 +00:00
s_fabs.c 2015-05-28 Wilco Dijkstra <wdijkstr@arm.com> 2015-05-28 11:42:55 +01:00
s_finite.c Reduce number of constants in __finite* (bug 15384). 2015-09-17 16:47:14 +00:00
s_floor.c Format floating routines. 2013-10-17 16:03:24 +02:00
s_fma.c Fix fma spurious underflows (bug 18824). 2015-08-14 17:15:06 +00:00
s_fmaf.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_fpclassify.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_frexp.c Format floating routines. 2013-10-17 16:03:24 +02:00
s_isinf.c Format floating routines. 2013-10-17 16:03:24 +02:00
s_isnan.c Format floating routines. 2013-10-17 16:03:24 +02:00
s_issignaling.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_llrint.c Use math_narrow_eval more consistently. 2015-09-23 18:14:57 +00:00
s_llround.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_log1p.c Fix log1p missing underflows (bug 16339). 2015-05-14 23:38:07 +00:00
s_logb.c Use glibc_likely instead __builtin_expect. 2014-02-10 15:07:12 +01:00
s_lrint.c Use math_narrow_eval more consistently. 2015-09-23 18:14:57 +00:00
s_lround.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_modf.c Use glibc_likely instead __builtin_expect. 2014-02-10 15:07:12 +01:00
s_nearbyint.c Format floating routines. 2013-10-17 16:03:24 +02:00
s_nexttoward.c Update. 1999-07-14 00:54:57 +00:00
s_remquo.c Fix sign of remquo zero remainder in round-downward mode (bug 17987). 2015-02-17 00:41:50 +00:00
s_rint.c Format floating routines. 2013-10-17 16:03:24 +02:00
s_round.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
s_scalbln.c [BZ #6803] Set errno for scalbln, scalbn 2014-06-20 07:48:20 +05:30
s_scalbn.c Make scalbn set errno (bug 6803). 2015-09-16 21:11:00 +00:00
s_signbit.c Use the GCC builtin functions for the non-inlined signbit implementations. 2015-09-18 16:39:08 +01:00
s_sin.c Fix sin, sincos missing underflows (bug 16526, bug 16538). 2015-06-23 22:24:20 +00:00
s_sincos.c Since we now inline isinf, isnan and isfinite in math.h, replace uses of __isinf_ns(l/f) 2015-09-18 20:51:52 +01:00
s_tan.c Fix tan missing underflows (bug 16517). 2015-08-07 23:10:35 +00:00
s_tanh.c Fix tanh missing underflows (bug 16520). 2015-08-13 16:40:39 +00:00
s_trunc.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
sincos32.c Remove various ABS macros and replace uses with fabs (or in one case abs) 2015-05-15 11:04:40 +00:00
sincos32.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
sincostab.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
slowexp.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
slowpow.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
t_exp2.h Update. 1999-07-14 00:54:57 +00:00
t_exp.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
uasncs.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
uatan.tbl Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
uexp.h Fix several build failures with GCC6 due to unused static variables. 2015-09-18 20:42:54 +01:00
uexp.tbl Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
ulog.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
ulog.tbl Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
upow.h Fix several build failures with GCC6 due to unused static variables. 2015-09-18 20:42:54 +01:00
upow.tbl Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
urem.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
uroot.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
usncs.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
utan.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
utan.tbl Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
w_exp.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
x2y2m1.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
x2y2m1f.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00