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11 Commits

Author SHA1 Message Date
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
ca2fcac629 Fix ldbl-128ibm tanhl inaccuracy for small arguments (bug 19349). 
The ldbl-128ibm implementation of tanhl is inaccurate for small
arguments, because it returns x*(1+x) (maybe in an attempt to raise
"inexact") when x itself would be the accurate return value but
multiplying by 1+x introduces large errors.  This patch fixes it to
return x in that case (when the mathematical result is x plus a
negligible remainder on the order of x^3) to avoid those errors.

Tested for powerpc.

	[BZ #19349]
	* sysdeps/ieee754/ldbl-128ibm/s_tanhl.c (__tanhl): Return argument
	when small.
 2015-12-09 21:20:18 +00:00
Joseph Myers
d96164c330 Refactor code forcing underflow exceptions. 
Various floating-point functions have code to force underflow
exceptions if a tiny result was computed in a way that might not have
resulted in such exceptions even though the result is inexact.  This
typically uses math_force_eval to ensure that the underflowing
expression is evaluated, but sometimes uses volatile.

This patch refactors such code to use three new macros
math_check_force_underflow, math_check_force_underflow_nonneg and
math_check_force_underflow_complex (which in turn use
math_force_eval).  In the limited number of cases not suited to a
simple conversion to these macros, existing uses of volatile are
changed to use math_force_eval instead.  The converted code does not
always execute exactly the same sequence of operations as the original
code, but the overall effects should be the same.

Tested for x86_64, x86, mips64 and powerpc.

	* sysdeps/generic/math_private.h (fabs_tg): New macro.
	(min_of_type): Likewise.
	(math_check_force_underflow): Likewise.
	(math_check_force_underflow_nonneg): Likewise.
	(math_check_force_underflow_complex): Likewise.
	* math/e_exp2l.c (__ieee754_exp2l): Use
	math_check_force_underflow_nonneg.
	* math/k_casinh.c (__kernel_casinh): Likewise.
	* math/k_casinhf.c (__kernel_casinhf): Likewise.
	* math/k_casinhl.c (__kernel_casinhl): Likewise.
	* math/s_catan.c (__catan): Use
	math_check_force_underflow_complex.
	* math/s_catanf.c (__catanf): Likewise.
	* math/s_catanh.c (__catanh): Likewise.
	* math/s_catanhf.c (__catanhf): Likewise.
	* math/s_catanhl.c (__catanhl): Likewise.
	* math/s_catanl.c (__catanl): Likewise.
	* math/s_ccosh.c (__ccosh): Likewise.
	* math/s_ccoshf.c (__ccoshf): Likewise.
	* math/s_ccoshl.c (__ccoshl): Likewise.
	* math/s_cexp.c (__cexp): Likewise.
	* math/s_cexpf.c (__cexpf): Likewise.
	* math/s_cexpl.c (__cexpl): Likewise.
	* math/s_clog.c (__clog): Use math_check_force_underflow_nonneg.
	* math/s_clog10.c (__clog10): Likewise.
	* math/s_clog10f.c (__clog10f): Likewise.
	* math/s_clog10l.c (__clog10l): Likewise.
	* math/s_clogf.c (__clogf): Likewise.
	* math/s_clogl.c (__clogl): Likewise.
	* math/s_csin.c (__csin): Use math_check_force_underflow_complex.
	* math/s_csinf.c (__csinf): Likewise.
	* math/s_csinh.c (__csinh): Likewise.
	* math/s_csinhf.c (__csinhf): Likewise.
	* math/s_csinhl.c (__csinhl): Likewise.
	* math/s_csinl.c (__csinl): Likewise.
	* math/s_csqrt.c (__csqrt): Use math_check_force_underflow.
	* math/s_csqrtf.c (__csqrtf): Likewise.
	* math/s_csqrtl.c (__csqrtl): Likewise.
	* math/s_ctan.c (__ctan): Use math_check_force_underflow_complex.
	* math/s_ctanf.c (__ctanf): Likewise.
	* math/s_ctanh.c (__ctanh): Likewise.
	* math/s_ctanhf.c (__ctanhf): Likewise.
	* math/s_ctanhl.c (__ctanhl): Likewise.
	* math/s_ctanl.c (__ctanl): Likewise.
	* stdlib/strtod_l.c (round_and_return): Use math_force_eval
	instead of volatile.
	* sysdeps/ieee754/dbl-64/e_asin.c (__ieee754_asin): Use
	math_check_force_underflow.
	* sysdeps/ieee754/dbl-64/e_atanh.c (__ieee754_atanh): Likewise.
	* sysdeps/ieee754/dbl-64/e_exp.c (__ieee754_exp): Do not use
	volatile when forcing underflow.
	* sysdeps/ieee754/dbl-64/e_exp2.c (__ieee754_exp2): Use
	math_check_force_underflow_nonneg.
	* sysdeps/ieee754/dbl-64/e_gamma_r.c (__ieee754_gamma_r):
	Likewise.
	* sysdeps/ieee754/dbl-64/e_j1.c (__ieee754_j1): Use
	math_check_force_underflow.
	* sysdeps/ieee754/dbl-64/e_jn.c (__ieee754_jn): Likewise.
	* sysdeps/ieee754/dbl-64/e_sinh.c (__ieee754_sinh): Likewise.
	* sysdeps/ieee754/dbl-64/s_asinh.c (__asinh): Likewise.
	* sysdeps/ieee754/dbl-64/s_atan.c (atan): Use
	math_check_force_underflow_nonneg.
	* sysdeps/ieee754/dbl-64/s_erf.c (__erf): Use
	math_check_force_underflow.
	* sysdeps/ieee754/dbl-64/s_expm1.c (__expm1): Likewise.
	* sysdeps/ieee754/dbl-64/s_fma.c (__fma): Use math_force_eval
	instead of volatile.
	* sysdeps/ieee754/dbl-64/s_log1p.c (__log1p): Use
	math_check_force_underflow.
	* sysdeps/ieee754/dbl-64/s_sin.c (__sin): Likewise.
	* sysdeps/ieee754/dbl-64/s_tan.c (tan): Use
	math_check_force_underflow_nonneg.
	* sysdeps/ieee754/dbl-64/s_tanh.c (__tanh): Use
	math_check_force_underflow.
	* sysdeps/ieee754/flt-32/e_asinf.c (__ieee754_asinf): Likewise.
	* sysdeps/ieee754/flt-32/e_atanhf.c (__ieee754_atanhf): Likewise.
	* sysdeps/ieee754/flt-32/e_exp2f.c (__ieee754_exp2f): Use
	math_check_force_underflow_nonneg.
	* sysdeps/ieee754/flt-32/e_gammaf_r.c (__ieee754_gammaf_r):
	Likewise.
	* sysdeps/ieee754/flt-32/e_j1f.c (__ieee754_j1f): Use
	math_check_force_underflow.
	* sysdeps/ieee754/flt-32/e_jnf.c (__ieee754_jnf): Likewise.
	* sysdeps/ieee754/flt-32/e_sinhf.c (__ieee754_sinhf): Likewise.
	* sysdeps/ieee754/flt-32/k_sinf.c (__kernel_sinf): Likewise.
	* sysdeps/ieee754/flt-32/k_tanf.c (__kernel_tanf): Likewise.
	* sysdeps/ieee754/flt-32/s_asinhf.c (__asinhf): Likewise.
	* sysdeps/ieee754/flt-32/s_atanf.c (__atanf): Likewise.
	* sysdeps/ieee754/flt-32/s_erff.c (__erff): Likewise.
	* sysdeps/ieee754/flt-32/s_expm1f.c (__expm1f): Likewise.
	* sysdeps/ieee754/flt-32/s_log1pf.c (__log1pf): Likewise.
	* sysdeps/ieee754/flt-32/s_tanhf.c (__tanhf): Likewise.
	* sysdeps/ieee754/ldbl-128/e_asinl.c (__ieee754_asinl): Likewise.
	* sysdeps/ieee754/ldbl-128/e_atanhl.c (__ieee754_atanhl):
	Likewise.
	* sysdeps/ieee754/ldbl-128/e_expl.c (__ieee754_expl): Use
	math_check_force_underflow_nonneg.
	* sysdeps/ieee754/ldbl-128/e_gammal_r.c (__ieee754_gammal_r):
	Likewise.
	* sysdeps/ieee754/ldbl-128/e_j1l.c (__ieee754_j1l): Use
	math_check_force_underflow.
	* sysdeps/ieee754/ldbl-128/e_jnl.c (__ieee754_jnl): Likewise.
	* sysdeps/ieee754/ldbl-128/e_sinhl.c (__ieee754_sinhl): 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/k_tanl.c (__kernel_tanl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_asinhl.c (__asinhl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_atanl.c (__atanl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_erfl.c (__erfl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_expm1l.c (__expm1l): Likewise.
	* sysdeps/ieee754/ldbl-128/s_fmal.c (__fmal): Use math_force_eval
	instead of volatile.
	* sysdeps/ieee754/ldbl-128/s_log1pl.c (__log1pl): Use
	math_check_force_underflow.
	* sysdeps/ieee754/ldbl-128/s_tanhl.c (__tanhl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_asinl.c (__ieee754_asinl): Use
	math_check_force_underflow.
	* sysdeps/ieee754/ldbl-128ibm/e_atanhl.c (__ieee754_atanhl):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (__ieee754_gammal_r):
	Use math_check_force_underflow_nonneg.
	* sysdeps/ieee754/ldbl-128ibm/e_jnl.c (__ieee754_jnl): Use
	math_check_force_underflow.
	* sysdeps/ieee754/ldbl-128ibm/e_sinhl.c (__ieee754_sinhl):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/k_sincosl.c (__kernel_sincosl):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/k_sinl.c (__kernel_sinl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/k_tanl.c (__kernel_tanl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_asinhl.c (__asinhl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_atanl.c (__atanl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_erfl.c (__erfl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_tanhl.c (__tanhl): 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_gammal_r.c (__ieee754_gammal_r): Use
	math_check_force_underflow_nonneg.
	* sysdeps/ieee754/ldbl-96/e_j1l.c (__ieee754_j1l): Use
	math_check_force_underflow.
	* sysdeps/ieee754/ldbl-96/e_jnl.c (__ieee754_jnl): Likewise.
	* sysdeps/ieee754/ldbl-96/e_sinhl.c (__ieee754_sinhl): Likewise.
	* sysdeps/ieee754/ldbl-96/k_sinl.c (__kernel_sinl): Likewise.
	* sysdeps/ieee754/ldbl-96/k_tanl.c (__kernel_tanl): Use
	math_check_force_underflow_nonneg.
	* sysdeps/ieee754/ldbl-96/s_asinhl.c (__asinhl): Use
	math_check_force_underflow.
	* sysdeps/ieee754/ldbl-96/s_erfl.c (__erfl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_fmal.c (__fmal): Use math_force_eval
	instead of volatile.
	* sysdeps/ieee754/ldbl-96/s_tanhl.c (__tanhl): Use
	math_check_force_underflow.
 2015-09-23 22:42:30 +00:00
Joseph Myers
37d83a089d Fix tanh missing underflows (bug 16520). 
Similar to various other bugs in this area, some tanh implementations
do not raise the underflow exception for subnormal arguments, when the
result is tiny and inexact.  This patch forces the exception in a
similar way to previous fixes.

Tested for x86_64, x86, mips64 and powerpc.

	[BZ #16520]
	* sysdeps/ieee754/dbl-64/s_tanh.c: Include <float.h>.
	(__tanh): Force underflow exception for arguments with small
	absolute value.
	* sysdeps/ieee754/flt-32/s_tanhf.c: Include <float.h>.
	(__tanhf): Force underflow exception for arguments with small
	absolute value.
	* sysdeps/ieee754/ldbl-128/s_tanhl.c: Include <float.h>.
	(__tanhl): Force underflow exception for arguments with small
	absolute value.
	* sysdeps/ieee754/ldbl-128ibm/s_tanhl.c: Include <float.h>.
	(__tanhl): Force underflow exception for arguments with small
	absolute value.
	* sysdeps/ieee754/ldbl-96/s_tanhl.c: Include <float.h>.
	(__tanhl): Force underflow exception for arguments with small
	absolute value.
	* math/auto-libm-test-in: Add more tests of tanh.
	* math/auto-libm-test-out: Regenerated.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
 2015-08-13 16:40:39 +00:00
Joseph Myers
7ee06ef158 Fix ldbl-128ibm tanhl inaccuracy (bug 18790). 
ldbl-128ibm tanhl uses a too-small threshold to decide when to return
+/-1, resulting in large errors.  This patch changes it to a more
appropriate threshold (the requirement is for 2*exp(-2|x|) to be small
in terms of ulps of 1).

Tested for x86_64, x86 and powerpc.

	[BZ #18790]
	* sysdeps/ieee754/ldbl-128ibm/s_tanhl.c (__tanhl): Increase
	threshold for returning +/- 1.
	* math/auto-libm-test-in: Add more tests of tanh.
	* math/auto-libm-test-out: Regenerated.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
 2015-08-10 20:35:30 +00:00
Alan Modra
765714cafc PowerPC floating point little-endian [3 of 15] 
http://sourceware.org/ml/libc-alpha/2013-08/msg00083.html

Further replacement of ieee854 macros and unions.  These files also
have some optimisations for comparison against 0.0L, infinity and nan.
Since the ABI specifies that the high double of an IBM long double
pair is the value rounded to double, a high double of 0.0 means the
low double must also be 0.0.  The ABI also says that infinity and
nan are encoded in the high double, with the low double unspecified.
This means that tests for 0.0L, +/-Infinity and +/-NaN need only check
the high double.

	* sysdeps/ieee754/ldbl-128ibm/e_atan2l.c (__ieee754_atan2l): Rewrite
	all uses of ieee854 long double macros and unions.  Simplify tests
	for long doubles that are fully specified by the high double.
	* sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (__ieee754_gammal_r):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_ilogbl.c (__ieee754_ilogbl): Likewise.
	Remove dead code too.
	* sysdeps/ieee754/ldbl-128ibm/e_jnl.c (__ieee754_jnl): Likewise.
	(__ieee754_ynl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_log10l.c (__ieee754_log10l): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_logl.c (__ieee754_logl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_powl.c (__ieee754_powl): Likewise.
	Remove dead code too.
	* sysdeps/ieee754/ldbl-128ibm/k_tanl.c (__kernel_tanl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_expm1l.c (__expm1l): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_frexpl.c (__frexpl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_isinf_nsl.c (__isinf_nsl): Likewise.
	Simplify.
	* sysdeps/ieee754/ldbl-128ibm/s_isinfl.c (___isinfl): Likewise.
	Simplify.
	* sysdeps/ieee754/ldbl-128ibm/s_log1pl.c (__log1pl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_modfl.c (__modfl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c (__nextafterl): Likewise.
	Comment on variable precision.
	* sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c (__nexttoward): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_nexttowardf.c (__nexttowardf):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_remquol.c (__remquol): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_scalblnl.c (__scalblnl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_scalbnl.c (__scalbnl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_tanhl.c (__tanhl): Likewise.
	* sysdeps/powerpc/fpu/libm-test-ulps: Adjust tan_towardzero ulps.
 2013-10-04 10:32:36 +09:30
Richard Henderson
1ed0291c31 Use <> for math.h and math_private.h everywhere. 
Entire tree edited via find | grep | sed.
 2012-03-09 16:09:10 -08:00
Joseph Myers
8db2188281 Remove __STDC__ conditionals from libm. 2012-01-27 17:29:45 +00:00
Roland McGrath
f964490f3c 2006-01-27 Dwayne Grant McConnell <decimal@us.ibm.com> 
Jakub Jelinek  <jakub@redhat.com>
	    Roland McGrath  <roland@redhat.com>
	    Steven Munroe  <sjmunroe@us.ibm.com>
	    Alan Modra  <amodra@bigpond.net.au>

	* sysdeps/powerpc/powerpc64/fpu/s_truncf.S: Comment fix.
	* sysdeps/powerpc/powerpc32/fpu/s_truncf.S: Likewise.
	* sysdeps/powerpc/powerpc64/fpu/s_llroundf.S: Likewise.

	* sysdeps/powerpc/fpu/libm-test-ulps: Update.

	* math/libm-test.inc (check_float_internal): Allow ulp <= 0.5.
	(erfc_test): Don't run erfcl (27.0L) test if erfcl (27.0L) is
	denormal.
	[TEST_LDOUBLE] (ceil_test, floor_test, llrint_test, llround_test,
	rint_test, round_test, trunc_test): Add new tests.

	* sysdeps/powerpc/powerpc32/fpu/s_copysignl.S: New file.
	* sysdeps/powerpc/powerpc32/fpu/s_fabs.S: New file.
	* sysdeps/powerpc/powerpc32/fpu/s_fabsl.S: New file.
	* sysdeps/powerpc/powerpc32/fpu/s_fdim.c: New file.
	* sysdeps/powerpc/powerpc32/fpu/s_fmax.S: New file.
	* sysdeps/powerpc/powerpc32/fpu/s_fmin.S: New file.
	* sysdeps/powerpc/powerpc32/fpu/s_isnan.c: New file.

	* sysdeps/powerpc/powerpc64/fpu/s_ceill.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_copysignl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_fabs.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_fabsl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_fdim.c: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_floorl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_fmax.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_fmin.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_isnan.c: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_llrintl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_llroundl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_lrintl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_lroundl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_nearbyintl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_rintl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_roundl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_truncl.S: New file.

	* sysdeps/unix/sysv/linux/powerpc/Implies: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/fpu/Implies: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/Implies: New file.
	* sysdeps/unix/sysv/linux/powerpc/configure.in: New file.
	* sysdeps/unix/sysv/linux/powerpc/configure: New file.
	* sysdeps/unix/sysv/linux/powerpc/bits/wordsize.h
	(__LONG_DOUBLE_MATH_OPTIONAL): Define.
	(__NO_LONG_DOUBLE_MATH): Define.
	* sysdeps/unix/sysv/linux/powerpc/nldbl-abi.h: New file.
	* sysdeps/powerpc/fpu/s_isnan.c: Include math_ldbl_opt.h.
	* sysdeps/powerpc/powerpc64/fpu/s_ceil.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (ceill): Add compatibility symbols.
	* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (copysignl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc64/fpu/s_floor.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (floorl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc64/fpu/s_llrint.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (llrintl, lrintl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc64/fpu/s_llround.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (llroundl, lroundl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc64/fpu/s_rint.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (rintl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc64/fpu/s_round.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (roundl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc64/fpu/s_trunc.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (truncl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_ceil.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (ceill): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_copysign.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (copysignl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_floor.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (floorl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_lrint.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (lrintl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_llrint.c: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (llrintl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_lround.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (lroundl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_rint.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (rintl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_round.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (roundl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_trunc.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (truncl): Add compatibility symbols.

	* misc/qefgcvt_r.c [LDBL_MIN_10_EXP == -291] (FLOAT_MIN_10_NORM): New.

	* sysdeps/powerpc/fpu/bits/mathdef.h (__NO_LONG_DOUBLE_MATH): Remove.
	* sysdeps/powerpc/Implies: Add ieee754/ldbl-128ibm.
	* sysdeps/powerpc/powerpc32/Implies: Remove powerpc/soft-fp.
	* sysdeps/ieee754/ldbl-128ibm/Makefile: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_acoshl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_acosl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_asinl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_atan2l.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_atanhl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_coshl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_expl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_fmodl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_hypotl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_j0l.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_j1l.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_jnl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_lgammal_r.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_log10l.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_log2l.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_logl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_powl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_rem_pio2l.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_remainderl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_sinhl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_sqrtl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/ieee754.h: New file.
	* sysdeps/ieee754/ldbl-128ibm/k_cosl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/k_sincosl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/k_sinl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/k_tanl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/ldbl2mpn.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/math_ldbl.h: New file.
	* sysdeps/ieee754/ldbl-128ibm/mpn2ldbl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/printf_fphex.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_asinhl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_atanl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_cbrtl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_cosl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_erfl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_expm1l.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_fabsl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_finitel.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_fpclassifyl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_frexpl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_ilogbl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_isinfl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_isnanl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_log1pl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_logbl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_modfl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_nexttowardf.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_remquol.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_rintl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_scalblnl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_scalbnl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_signbitl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_sincosl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_sinl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_tanhl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_tanl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_truncl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/strtold_l.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/t_sincosl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/w_expl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_copysignl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_floorl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_llrintl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_llroundl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_roundl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_ceill.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_lrintl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_lroundl.c: New file.

	* sysdeps/ieee754/ldbl-128/e_powl.c: Fix old comment.
 2006-01-28 00:15:15 +00:00
Ulrich Drepper
a334319f65 (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4. 2004-12-22 20:10:10 +00:00
Jakub Jelinek
0ecb606cb6 2.5-18.1 2007-07-12 18:26:36 +00:00