diff options
| author | Joseph Myers <joseph@codesourcery.com> | 2015-09-23 22:42:30 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-09-23 22:42:30 +0000 |
| commit | d96164c33012fccc7ba3ebb4d324c7fd0c6b5836 (patch) | |
| tree | 5094cc63822fbfda984f285bbf109f71ed14fa3d | |
| parent | 54142c44e963f410262fa868c159b6df858f3c53 (diff) | |
| download | glibc-d96164c33012fccc7ba3ebb4d324c7fd0c6b5836.tar.gz glibc-d96164c33012fccc7ba3ebb4d324c7fd0c6b5836.tar.xz glibc-d96164c33012fccc7ba3ebb4d324c7fd0c6b5836.zip | |
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.
113 files changed, 334 insertions, 723 deletions
diff --git a/ChangeLog b/ChangeLog index 3a5f03d738..20fd655b07 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,158 @@ 2015-09-23 Joseph Myers <joseph@codesourcery.com> + * 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. + * math/s_nexttowardf.c (__nexttowardf): Use math_narrow_eval. * stdlib/strtod_l.c: Include <math_private.h>. (overflow_value): Use math_narrow_eval. diff --git a/math/e_exp2l.c b/math/e_exp2l.c index b8cd158b88..19c927811d 100644 --- a/math/e_exp2l.c +++ b/math/e_exp2l.c @@ -43,11 +43,7 @@ __ieee754_exp2l (long double x) result = __scalbnl (1.0L + fractx, intx); else result = __scalbnl (__ieee754_expl (M_LN2l * fractx), intx); - if (result < LDBL_MIN) - { - long double force_underflow = result * result; - math_force_eval (force_underflow); - } + math_check_force_underflow_nonneg (result); return result; } else diff --git a/math/k_casinh.c b/math/k_casinh.c index cd089ab8f2..69c03e3ae1 100644 --- a/math/k_casinh.c +++ b/math/k_casinh.c @@ -180,11 +180,7 @@ __kernel_casinh (__complex__ double x, int adj) else __imag__ res = __ieee754_atan2 (ix, s); } - if (__real__ res < DBL_MIN) - { - volatile double force_underflow = __real__ res * __real__ res; - (void) force_underflow; - } + math_check_force_underflow_nonneg (__real__ res); } else { diff --git a/math/k_casinhf.c b/math/k_casinhf.c index 04c1a21f25..088b61fe0a 100644 --- a/math/k_casinhf.c +++ b/math/k_casinhf.c @@ -182,11 +182,7 @@ __kernel_casinhf (__complex__ float x, int adj) else __imag__ res = __ieee754_atan2f (ix, s); } - if (__real__ res < FLT_MIN) - { - volatile float force_underflow = __real__ res * __real__ res; - (void) force_underflow; - } + math_check_force_underflow_nonneg (__real__ res); } else { diff --git a/math/k_casinhl.c b/math/k_casinhl.c index 496c0641cd..8963716003 100644 --- a/math/k_casinhl.c +++ b/math/k_casinhl.c @@ -189,11 +189,7 @@ __kernel_casinhl (__complex__ long double x, int adj) else __imag__ res = __ieee754_atan2l (ix, s); } - if (__real__ res < LDBL_MIN) - { - volatile long double force_underflow = __real__ res * __real__ res; - (void) force_underflow; - } + math_check_force_underflow_nonneg (__real__ res); } else { diff --git a/math/s_catan.c b/math/s_catan.c index 880473ba44..d9dc149088 100644 --- a/math/s_catan.c +++ b/math/s_catan.c @@ -131,16 +131,7 @@ __catan (__complex__ double x) } } - if (fabs (__real__ res) < DBL_MIN) - { - volatile double force_underflow = __real__ res * __real__ res; - (void) force_underflow; - } - if (fabs (__imag__ res) < DBL_MIN) - { - volatile double force_underflow = __imag__ res * __imag__ res; - (void) force_underflow; - } + math_check_force_underflow_complex (res); } return res; diff --git a/math/s_catanf.c b/math/s_catanf.c index 64f11528ce..37ae4bfd15 100644 --- a/math/s_catanf.c +++ b/math/s_catanf.c @@ -133,16 +133,7 @@ __catanf (__complex__ float x) } } - if (fabsf (__real__ res) < FLT_MIN) - { - volatile float force_underflow = __real__ res * __real__ res; - (void) force_underflow; - } - if (fabsf (__imag__ res) < FLT_MIN) - { - volatile float force_underflow = __imag__ res * __imag__ res; - (void) force_underflow; - } + math_check_force_underflow_complex (res); } return res; diff --git a/math/s_catanh.c b/math/s_catanh.c index 281183efdd..a9ad614a63 100644 --- a/math/s_catanh.c +++ b/math/s_catanh.c @@ -125,16 +125,7 @@ __catanh (__complex__ double x) __imag__ res = 0.5 * __ieee754_atan2 (2.0 * __imag__ x, den); } - if (fabs (__real__ res) < DBL_MIN) - { - volatile double force_underflow = __real__ res * __real__ res; - (void) force_underflow; - } - if (fabs (__imag__ res) < DBL_MIN) - { - volatile double force_underflow = __imag__ res * __imag__ res; - (void) force_underflow; - } + math_check_force_underflow_complex (res); } return res; diff --git a/math/s_catanhf.c b/math/s_catanhf.c index ea606c5ceb..68296bb060 100644 --- a/math/s_catanhf.c +++ b/math/s_catanhf.c @@ -127,16 +127,7 @@ __catanhf (__complex__ float x) __imag__ res = 0.5f * __ieee754_atan2f (2.0f * __imag__ x, den); } - if (fabsf (__real__ res) < FLT_MIN) - { - volatile float force_underflow = __real__ res * __real__ res; - (void) force_underflow; - } - if (fabsf (__imag__ res) < FLT_MIN) - { - volatile float force_underflow = __imag__ res * __imag__ res; - (void) force_underflow; - } + math_check_force_underflow_complex (res); } return res; diff --git a/math/s_catanhl.c b/math/s_catanhl.c index a0b760082e..c97a39b280 100644 --- a/math/s_catanhl.c +++ b/math/s_catanhl.c @@ -133,16 +133,7 @@ __catanhl (__complex__ long double x) __imag__ res = 0.5L * __ieee754_atan2l (2.0L * __imag__ x, den); } - if (fabsl (__real__ res) < LDBL_MIN) - { - volatile long double force_underflow = __real__ res * __real__ res; - (void) force_underflow; - } - if (fabsl (__imag__ res) < LDBL_MIN) - { - volatile long double force_underflow = __imag__ res * __imag__ res; - (void) force_underflow; - } + math_check_force_underflow_complex (res); } return res; diff --git a/math/s_catanl.c b/math/s_catanl.c index 1c8d9768ef..ea75642deb 100644 --- a/math/s_catanl.c +++ b/math/s_catanl.c @@ -139,16 +139,7 @@ __catanl (__complex__ long double x) } } - if (fabsl (__real__ res) < LDBL_MIN) - { - volatile long double force_underflow = __real__ res * __real__ res; - (void) force_underflow; - } - if (fabsl (__imag__ res) < LDBL_MIN) - { - volatile long double force_underflow = __imag__ res * __imag__ res; - (void) force_underflow; - } + math_check_force_underflow_complex (res); } return res; diff --git a/math/s_ccosh.c b/math/s_ccosh.c index 664731afeb..6192ecfb95 100644 --- a/math/s_ccosh.c +++ b/math/s_ccosh.c @@ -83,18 +83,7 @@ __ccosh (__complex__ double x) __imag__ retval = __ieee754_sinh (__real__ x) * sinix; } - if (fabs (__real__ retval) < DBL_MIN) - { - volatile double force_underflow - = __real__ retval * __real__ retval; - (void) force_underflow; - } - if (fabs (__imag__ retval) < DBL_MIN) - { - volatile double force_underflow - = __imag__ retval * __imag__ retval; - (void) force_underflow; - } + math_check_force_underflow_complex (retval); } else { diff --git a/math/s_ccoshf.c b/math/s_ccoshf.c index 6f61efc8c6..8acbbbbcd0 100644 --- a/math/s_ccoshf.c +++ b/math/s_ccoshf.c @@ -83,18 +83,7 @@ __ccoshf (__complex__ float x) __imag__ retval = __ieee754_sinhf (__real__ x) * sinix; } - if (fabsf (__real__ retval) < FLT_MIN) - { - volatile float force_underflow - = __real__ retval * __real__ retval; - (void) force_underflow; - } - if (fabsf (__imag__ retval) < FLT_MIN) - { - volatile float force_underflow - = __imag__ retval * __imag__ retval; - (void) force_underflow; - } + math_check_force_underflow_complex (retval); } else { diff --git a/math/s_ccoshl.c b/math/s_ccoshl.c index 874786d17a..afc304d800 100644 --- a/math/s_ccoshl.c +++ b/math/s_ccoshl.c @@ -83,18 +83,7 @@ __ccoshl (__complex__ long double x) __imag__ retval = __ieee754_sinhl (__real__ x) * sinix; } - if (fabsl (__real__ retval) < LDBL_MIN) - { - volatile long double force_underflow - = __real__ retval * __real__ retval; - (void) force_underflow; - } - if (fabsl (__imag__ retval) < LDBL_MIN) - { - volatile long double force_underflow - = __imag__ retval * __imag__ retval; - (void) force_underflow; - } + math_check_force_underflow_complex (retval); } else { diff --git a/math/s_cexp.c b/math/s_cexp.c index 06c5b63c7a..5cb42d1ec0 100644 --- a/math/s_cexp.c +++ b/math/s_cexp.c @@ -74,18 +74,7 @@ __cexp (__complex__ double x) __real__ retval = exp_val * cosix; __imag__ retval = exp_val * sinix; } - if (fabs (__real__ retval) < DBL_MIN) - { - volatile double force_underflow - = __real__ retval * __real__ retval; - (void) force_underflow; - } - if (fabs (__imag__ retval) < DBL_MIN) - { - volatile double force_underflow - = __imag__ retval * __imag__ retval; - (void) force_underflow; - } + math_check_force_underflow_complex (retval); } else { diff --git a/math/s_cexpf.c b/math/s_cexpf.c index 35ff36ceca..7df203829d 100644 --- a/math/s_cexpf.c +++ b/math/s_cexpf.c @@ -74,18 +74,7 @@ __cexpf (__complex__ float x) __real__ retval = exp_val * cosix; __imag__ retval = exp_val * sinix; } - if (fabsf (__real__ retval) < FLT_MIN) - { - volatile float force_underflow - = __real__ retval * __real__ retval; - (void) force_underflow; - } - if (fabsf (__imag__ retval) < FLT_MIN) - { - volatile float force_underflow - = __imag__ retval * __imag__ retval; - (void) force_underflow; - } + math_check_force_underflow_complex (retval); } else { diff --git a/math/s_cexpl.c b/math/s_cexpl.c index e2e703f8fd..264a5742bc 100644 --- a/math/s_cexpl.c +++ b/math/s_cexpl.c @@ -74,18 +74,7 @@ __cexpl (__complex__ long double x) __real__ retval = exp_val * cosix; __imag__ retval = exp_val * sinix; } - if (fabsl (__real__ retval) < LDBL_MIN) - { - volatile long double force_underflow - = __real__ retval * __real__ retval; - (void) force_underflow; - } - if (fabsl (__imag__ retval) < LDBL_MIN) - { - volatile long double force_underflow - = __imag__ retval * __imag__ retval; - (void) force_underflow; - } + math_check_force_underflow_complex (retval); } else { diff --git a/math/s_clog.c b/math/s_clog.c index 15f04594e9..b010e89e67 100644 --- a/math/s_clog.c +++ b/math/s_clog.c @@ -65,15 +65,8 @@ __clog (__complex__ double x) if (absx == 1.0 && scale == 0) { - double absy2 = absy * absy; - if (absy2 <= DBL_MIN * 2.0) - { - double force_underflow = absy2 * absy2; - __real__ result = absy2 / 2.0; - math_force_eval (force_underflow); - } - else - __real__ result = __log1p (absy2) / 2.0; + __real__ result = __log1p (absy * absy) / 2.0; + math_check_force_underflow_nonneg (__real__ result); } else if (absx > 1.0 && absx < 2.0 && absy < 1.0 && scale == 0) { diff --git a/math/s_clog10.c b/math/s_clog10.c index 79909383a0..b6a434225a 100644 --- a/math/s_clog10.c +++ b/math/s_clog10.c @@ -71,15 +71,8 @@ __clog10 (__complex__ double x) if (absx == 1.0 && scale == 0) { - double absy2 = absy * absy; - if (absy2 <= DBL_MIN * 2.0 * M_LN10) - { - double force_underflow = absy2 * absy2; - __real__ result = absy2 * (M_LOG10E / 2.0); - math_force_eval (force_underflow); - } - else - __real__ result = __log1p (absy2) * (M_LOG10E / 2.0); + __real__ result = __log1p (absy * absy) * (M_LOG10E / 2.0); + math_check_force_underflow_nonneg (__real__ result); } else if (absx > 1.0 && absx < 2.0 && absy < 1.0 && scale == 0) { diff --git a/math/s_clog10f.c b/math/s_clog10f.c index b30ad3a2e7..b77a849d4e 100644 --- a/math/s_clog10f.c +++ b/math/s_clog10f.c @@ -71,15 +71,8 @@ __clog10f (__complex__ float x) if (absx == 1.0f && scale == 0) { - float absy2 = absy * absy; - if (absy2 <= FLT_MIN * 2.0f * (float) M_LN10) - { - float force_underflow = absy2 * absy2; - __real__ result = absy2 * ((float) M_LOG10E / 2.0f); - math_force_eval (force_underflow); - } - else - __real__ result = __log1pf (absy2) * ((float) M_LOG10E / 2.0f); + __real__ result = __log1pf (absy * absy) * ((float) M_LOG10E / 2.0f); + math_check_force_underflow_nonneg (__real__ result); } else if (absx > 1.0f && absx < 2.0f && absy < 1.0f && scale == 0) { diff --git a/math/s_clog10l.c b/math/s_clog10l.c index 8481e45d4e..86ec512663 100644 --- a/math/s_clog10l.c +++ b/math/s_clog10l.c @@ -78,15 +78,8 @@ __clog10l (__complex__ long double x) if (absx == 1.0L && scale == 0) { - long double absy2 = absy * absy; - if (absy2 <= LDBL_MIN * 2.0L * M_LN10l) - { - long double force_underflow = absy2 * absy2; - __real__ result = absy2 * (M_LOG10El / 2.0); - math_force_eval (force_underflow); - } - else - __real__ result = __log1pl (absy2) * (M_LOG10El / 2.0L); + __real__ result = __log1pl (absy * absy) * (M_LOG10El / 2.0L); + math_check_force_underflow_nonneg (__real__ result); } else if (absx > 1.0L && absx < 2.0L && absy < 1.0L && scale == 0) { diff --git a/math/s_clogf.c b/math/s_clogf.c index bae0fe60ac..ffec7ce0a4 100644 --- a/math/s_clogf.c +++ b/math/s_clogf.c @@ -65,15 +65,8 @@ __clogf (__complex__ float x) if (absx == 1.0f && scale == 0) { - float absy2 = absy * absy; - if (absy2 <= FLT_MIN * 2.0f) - { - float force_underflow = absy2 * absy2; - __real__ result = absy2 / 2.0f; - math_force_eval (force_underflow); - } - else - __real__ result = __log1pf (absy2) / 2.0f; + __real__ result = __log1pf (absy * absy) / 2.0f; + math_check_force_underflow_nonneg (__real__ result); } else if (absx > 1.0f && absx < 2.0f && absy < 1.0f && scale == 0) { diff --git a/math/s_clogl.c b/math/s_clogl.c index aebff2adc2..6325df4662 100644 --- a/math/s_clogl.c +++ b/math/s_clogl.c @@ -72,15 +72,8 @@ __clogl (__complex__ long double x) if (absx == 1.0L && scale == 0) { - long double absy2 = absy * absy; - if (absy2 <= LDBL_MIN * 2.0L) - { - long double force_underflow = absy2 * absy2; - __real__ result = absy2 / 2.0L; - math_force_eval (force_underflow); - } - else - __real__ result = __log1pl (absy2) / 2.0L; + __real__ result = __log1pl (absy * absy) / 2.0L; + math_check_force_underflow_nonneg (__real__ result); } else if (absx > 1.0L && absx < 2.0L && absy < 1.0L && scale == 0) { diff --git a/math/s_csin.c b/math/s_csin.c index e926d7e185..e6583bc81b 100644 --- a/math/s_csin.c +++ b/math/s_csin.c @@ -89,18 +89,7 @@ __csin (__complex__ double x) __imag__ retval = __ieee754_sinh (__imag__ x) * cosix; } - if (fabs (__real__ retval) < DBL_MIN) - { - volatile double force_underflow - = __real__ retval * __real__ retval; - (void) force_underflow; - } - if (fabs (__imag__ retval) < DBL_MIN) - { - volatile double force_underflow - = __imag__ retval * __imag__ retval; - (void) force_underflow; - } + math_check_force_underflow_complex (retval); } else { diff --git a/math/s_csinf.c b/math/s_csinf.c index 52cce4b46b..c20fd0bd5f 100644 --- a/math/s_csinf.c +++ b/math/s_csinf.c @@ -89,18 +89,7 @@ __csinf (__complex__ float x) __imag__ retval = __ieee754_sinhf (__imag__ x) * cosix; } - if (fabsf (__real__ retval) < FLT_MIN) - { - volatile float force_underflow - = __real__ retval * __real__ retval; - (void) force_underflow; - } - if (fabsf (__imag__ retval) < FLT_MIN) - { - volatile float force_underflow - = __imag__ retval * __imag__ retval; - (void) force_underflow; - } + math_check_force_underflow_complex (retval); } else { diff --git a/math/s_csinh.c b/math/s_csinh.c index 7aa69e7a61..c944d80b63 100644 --- a/math/s_csinh.c +++ b/math/s_csinh.c @@ -89,18 +89,7 @@ __csinh (__complex__ double x) __imag__ retval = __ieee754_cosh (__real__ x) * sinix; } - if (fabs (__real__ retval) < DBL_MIN) - { - volatile double force_underflow - = __real__ retval * __real__ retval; - (void) force_underflow; - } - if (fabs (__imag__ retval) < DBL_MIN) - { - volatile double force_underflow - = __imag__ retval * __imag__ retval; - (void) force_underflow; - } + math_check_force_underflow_complex (retval); } else { diff --git a/math/s_csinhf.c b/math/s_csinhf.c index 72e4800cb7..16c2a0a961 100644 --- a/math/s_csinhf.c +++ b/math/s_csinhf.c @@ -89,18 +89,7 @@ __csinhf (__complex__ float x) __imag__ retval = __ieee754_coshf (__real__ x) * sinix; } - if (fabsf (__real__ retval) < FLT_MIN) - { - volatile float force_underflow - = __real__ retval * __real__ retval; - (void) force_underflow; - } - if (fabsf (__imag__ retval) < FLT_MIN) - { - volatile float force_underflow - = __imag__ retval * __imag__ retval; - (void) force_underflow; - } + math_check_force_underflow_complex (retval); } else { diff --git a/math/s_csinhl.c b/math/s_csinhl.c index 62243dab62..e7e3dcd1dd 100644 --- a/math/s_csinhl.c +++ b/math/s_csinhl.c @@ -89,18 +89,7 @@ __csinhl (__complex__ long double x) __imag__ retval = __ieee754_coshl (__real__ x) * sinix; } - if (fabsl (__real__ retval) < LDBL_MIN) - { - volatile long double force_underflow - = __real__ retval * __real__ retval; - (void) force_underflow; - } - if (fabsl (__imag__ retval) < LDBL_MIN) - { - volatile long double force_underflow - = __imag__ retval * __imag__ retval; - (void) force_underflow; - } + math_check_force_underflow_complex (retval); } else { diff --git a/math/s_csinl.c b/math/s_csinl.c index 7908aee97c..7391f2c557 100644 --- a/math/s_csinl.c +++ b/math/s_csinl.c @@ -89,18 +89,7 @@ __csinl (__complex__ long double x) __imag__ retval = __ieee754_sinhl (__imag__ x) * cosix; } - if (fabsl (__real__ retval) < LDBL_MIN) - { - volatile long double force_underflow - = __real__ retval * __real__ retval; - (void) force_underflow; - } - if (fabsl (__imag__ retval) < LDBL_MIN) - { - volatile long double force_underflow - = __imag__ retval * __imag__ retval; - (void) force_underflow; - } + math_check_force_underflow_complex (retval); } else { diff --git a/math/s_csqrt.c b/math/s_csqrt.c index b86f53322e..9a3d5d6dd2 100644 --- a/math/s_csqrt.c +++ b/math/s_csqrt.c @@ -148,16 +148,8 @@ __csqrt (__complex__ double x) s = __scalbn (s, scale); } - if (fabs (r) < DBL_MIN) - { - double force_underflow = r * r; - math_force_eval (force_underflow); - } - if (fabs (s) < DBL_MIN) - { - double force_underflow = s * s; - math_force_eval (force_underflow); - } + math_check_force_underflow (r); + math_check_force_underflow (s); __real__ res = r; __imag__ res = __copysign (s, __imag__ x); diff --git a/math/s_csqrtf.c b/math/s_csqrtf.c index e433f476c2..597f0a224f 100644 --- a/math/s_csqrtf.c +++ b/math/s_csqrtf.c @@ -148,16 +148,8 @@ __csqrtf (__complex__ float x) s = __scalbnf (s, scale); } - if (fabsf (r) < FLT_MIN) - { - float force_underflow = r * r; - math_force_eval (force_underflow); - } - if (fabsf (s) < FLT_MIN) - { - float force_underflow = s * s; - math_force_eval (force_underflow); - } + math_check_force_underflow (r); + math_check_force_underflow (s); __real__ res = r; __imag__ res = __copysignf (s, __imag__ x); diff --git a/math/s_csqrtl.c b/math/s_csqrtl.c index 003d614f60..f9f31b28fc 100644 --- a/math/s_csqrtl.c +++ b/math/s_csqrtl.c @@ -148,16 +148,8 @@ __csqrtl (__complex__ long double x) s = __scalbnl (s, scale); } - if (fabsl (r) < LDBL_MIN) - { - long double force_underflow = r * r; - math_force_eval (force_underflow); - } - if (fabsl (s) < LDBL_MIN) - { - long double force_underflow = s * s; - math_force_eval (force_underflow); - } + math_check_force_underflow (r); + math_check_force_underflow (s); __real__ res = r; __imag__ res = __copysignl (s, __imag__ x); diff --git a/math/s_ctan.c b/math/s_ctan.c index 674c3b63b4..2ab1630a94 100644 --- a/math/s_ctan.c +++ b/math/s_ctan.c @@ -117,16 +117,7 @@ __ctan (__complex__ double x) __real__ res = sinrx * cosrx / den; __imag__ res = sinhix * coshix / den; } - if (fabs (__real__ res) < DBL_MIN) - { - double force_underflow = __real__ res * __real__ res; - math_force_eval (force_underflow); - } - if (fabs (__imag__ res) < DBL_MIN) - { - double force_underflow = __imag__ res * __imag__ res; - math_force_eval (force_underflow); - } + math_check_force_underflow_complex (res); } return res; diff --git a/math/s_ctanf.c b/math/s_ctanf.c index e0ebe43d31..1606b058ea 100644 --- a/math/s_ctanf.c +++ b/math/s_ctanf.c @@ -117,16 +117,7 @@ __ctanf (__complex__ float x) __real__ res = sinrx * cosrx / den; __imag__ res = sinhix * coshix / den; } - if (fabsf (__real__ res) < FLT_MIN) - { - float force_underflow = __real__ res * __real__ res; - math_force_eval (force_underflow); - } - if (fabsf (__imag__ res) < FLT_MIN) - { - float force_underflow = __imag__ res * __imag__ res; - math_force_eval (force_underflow); - } + math_check_force_underflow_complex (res); } return res; diff --git a/math/s_ctanh.c b/math/s_ctanh.c index 58607b1367..486545db27 100644 --- a/math/s_ctanh.c +++ b/math/s_ctanh.c @@ -117,16 +117,7 @@ __ctanh (__complex__ double x) __real__ res = sinhrx * coshrx / den; __imag__ res = sinix * cosix / den; } - if (fabs (__real__ res) < DBL_MIN) - { - double force_underflow = __real__ res * __real__ res; - math_force_eval (force_underflow); - } - if (fabs (__imag__ res) < DBL_MIN) - { - double force_underflow = __imag__ res * __imag__ res; - math_force_eval (force_underflow); - } + math_check_force_underflow_complex (res); } return res; diff --git a/math/s_ctanhf.c b/math/s_ctanhf.c index a4fd2301cd..000820a6d9 100644 --- a/math/s_ctanhf.c +++ b/math/s_ctanhf.c @@ -117,16 +117,7 @@ __ctanhf (__complex__ float x) __real__ res = sinhrx * coshrx / den; __imag__ res = sinix * cosix / den; } - if (fabsf (__real__ res) < FLT_MIN) - { - float force_underflow = __real__ res * __real__ res; - math_force_eval (force_underflow); - } - if (fabsf (__imag__ res) < FLT_MIN) - { - float force_underflow = __imag__ res * __imag__ res; - math_force_eval (force_underflow); - } + math_check_force_underflow_complex (res); } return res; diff --git a/math/s_ctanhl.c b/math/s_ctanhl.c index fb67b2bcc8..cc80cae516 100644 --- a/math/s_ctanhl.c +++ b/math/s_ctanhl.c @@ -124,16 +124,7 @@ __ctanhl (__complex__ long double x) __real__ res = sinhrx * coshrx / den; __imag__ res = sinix * cosix / den; } - if (fabsl (__real__ res) < LDBL_MIN) - { - long double force_underflow = __real__ res * __real__ res; - math_force_eval (force_underflow); - } - if (fabsl (__imag__ res) < LDBL_MIN) - { - long double force_underflow = __imag__ res * __imag__ res; - math_force_eval (force_underflow); - } + math_check_force_underflow_complex (res); } return res; diff --git a/math/s_ctanl.c b/math/s_ctanl.c index 4783dcbeb9..8b04910846 100644 --- a/math/s_ctanl.c +++ b/math/s_ctanl.c @@ -124,16 +124,7 @@ __ctanl (__complex__ long double x) __real__ res = sinrx * cosrx / den; __imag__ res = sinhix * coshix / den; } - if (fabsl (__real__ res) < LDBL_MIN) - { - long double force_underflow = __real__ res * __real__ res; - math_force_eval (force_underflow); - } - if (fabsl (__imag__ res) < LDBL_MIN) - { - long double force_underflow = __imag__ res * __imag__ res; - math_force_eval (force_underflow); - } + math_check_force_underflow_complex (res); } return res; diff --git a/stdlib/strtod_l.c b/stdlib/strtod_l.c index 7950870270..da8e4df1ce 100644 --- a/stdlib/strtod_l.c +++ b/stdlib/strtod_l.c @@ -297,8 +297,8 @@ round_and_return (mp_limb_t *retval, intmax_t exponent, int negative, || (round_limb & ((((mp_limb_t) 1) << round_bit) - 1)) != 0)) { __set_errno (ERANGE); - volatile FLOAT force_underflow_exception = MIN_VALUE * MIN_VALUE; - (void) force_underflow_exception; + FLOAT force_underflow = MIN_VALUE * MIN_VALUE; + math_force_eval (force_underflow); } } diff --git a/sysdeps/generic/math_private.h b/sysdeps/generic/math_private.h index 35591eed15..a8f1a8e4e5 100644 --- a/sysdeps/generic/math_private.h +++ b/sysdeps/generic/math_private.h @@ -429,6 +429,58 @@ extern long double __lgamma_productl (long double t, long double x, }) #endif +#define fabs_tg(x) __builtin_choose_expr \ + (__builtin_types_compatible_p (__typeof (x), float), \ + __builtin_fabsf (x), \ + __builtin_choose_expr \ + (__builtin_types_compatible_p (__typeof (x), double), \ + __builtin_fabs (x), __builtin_fabsl (x))) +#define min_of_type(type) __builtin_choose_expr \ + (__builtin_types_compatible_p (type, float), \ + FLT_MIN, \ + __builtin_choose_expr \ + (__builtin_types_compatible_p (type, double), \ + DBL_MIN, LDBL_MIN)) + +/* If X (which is not a NaN) is subnormal, force an underflow + exception. */ +#define math_check_force_underflow(x) \ + do \ + { \ + __typeof (x) force_underflow_tmp = (x); \ + if (fabs_tg (force_underflow_tmp) \ + < min_of_type (__typeof (force_underflow_tmp))) \ + { \ + __typeof (force_underflow_tmp) force_underflow_tmp2 \ + = force_underflow_tmp * force_underflow_tmp; \ + math_force_eval (force_underflow_tmp2); \ + } \ + } \ + while (0) +/* Likewise, but X is also known to be nonnegative. */ +#define math_check_force_underflow_nonneg(x) \ + do \ + { \ + __typeof (x) force_underflow_tmp = (x); \ + if (force_underflow_tmp \ + < min_of_type (__typeof (force_underflow_tmp))) \ + { \ + __typeof (force_underflow_tmp) force_underflow_tmp2 \ + = force_underflow_tmp * force_underflow_tmp; \ + math_force_eval (force_underflow_tmp2); \ + } \ + } \ + while (0) +/* Likewise, for both real and imaginary parts of a complex + result. */ +#define math_check_force_underflow_complex(x) \ + do \ + { \ + __typeof (x) force_underflow_complex_tmp = (x); \ + math_check_force_underflow (__real__ force_underflow_complex_tmp); \ + math_check_force_underflow (__imag__ force_underflow_complex_tmp); \ + } \ + while (0) /* The standards only specify one variant of the fenv.h interfaces. But at least for some architectures we can be more efficient if we diff --git a/sysdeps/ieee754/dbl-64/e_asin.c b/sysdeps/ieee754/dbl-64/e_asin.c index a7684d1078..214a61211a 100644 --- a/sysdeps/ieee754/dbl-64/e_asin.c +++ b/sysdeps/ieee754/dbl-64/e_asin.c @@ -71,11 +71,7 @@ __ieee754_asin(double x){ if (k < 0x3e500000) { - if (fabs (x) < DBL_MIN) - { - double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x; /* for x->0 => sin(x)=x */ } /*----------------------2^-26 <= |x| < 2^ -3 -----------------*/ diff --git a/sysdeps/ieee754/dbl-64/e_atanh.c b/sysdeps/ieee754/dbl-64/e_atanh.c index 6b00b800f2..f011e4c4eb 100644 --- a/sysdeps/ieee754/dbl-64/e_atanh.c +++ b/sysdeps/ieee754/dbl-64/e_atanh.c @@ -52,11 +52,7 @@ __ieee754_atanh (double x) if (__glibc_unlikely (xa < 0x1.0p-28)) { math_force_eval (huge + x); - if (fabs (x) < DBL_MIN) - { - double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x; } diff --git a/sysdeps/ieee754/dbl-64/e_exp.c b/sysdeps/ieee754/dbl-64/e_exp.c index bb76907f74..db7626844a 100644 --- a/sysdeps/ieee754/dbl-64/e_exp.c +++ b/sysdeps/ieee754/dbl-64/e_exp.c @@ -200,10 +200,7 @@ __ieee754_exp (double x) check_uflow_ret: if (retval < DBL_MIN) { -#if FLT_EVAL_METHOD != 0 - volatile -#endif - double force_underflow = tiny * tiny; + double force_underflow = tiny * tiny; math_force_eval (force_underflow); } if (retval == 0) diff --git a/sysdeps/ieee754/dbl-64/e_exp2.c b/sysdeps/ieee754/dbl-64/e_exp2.c index 01df62150d..48a7254086 100644 --- a/sysdeps/ieee754/dbl-64/e_exp2.c +++ b/sysdeps/ieee754/dbl-64/e_exp2.c @@ -122,11 +122,7 @@ __ieee754_exp2 (double x) else { result *= scale_u.d; - if (result < DBL_MIN) - { - double force_underflow = result * result; - math_force_eval (force_underflow); - } + math_check_force_underflow_nonneg (result); return result; } } diff --git a/sysdeps/ieee754/dbl-64/e_gamma_r.c b/sysdeps/ieee754/dbl-64/e_gamma_r.c index d3fb8af97e..a09a3fc1f2 100644 --- a/sysdeps/ieee754/dbl-64/e_gamma_r.c +++ b/sysdeps/ieee754/dbl-64/e_gamma_r.c @@ -187,11 +187,7 @@ __ieee754_gamma_r (double x, int *signgamp) double tret = M_PI / (-x * sinpix * gamma_positive (-x, &exp2_adj)); ret = __scalbn (tret, -exp2_adj); - if (ret < DBL_MIN) - { - double force_underflow = ret * ret; - math_force_eval (force_underflow); - } + math_check_force_underflow_nonneg (ret); } } ret = math_narrow_eval (ret); diff --git a/sysdeps/ieee754/dbl-64/e_j1.c b/sysdeps/ieee754/dbl-64/e_j1.c index 26ffdfe282..7f80b3ced0 100644 --- a/sysdeps/ieee754/dbl-64/e_j1.c +++ b/sysdeps/ieee754/dbl-64/e_j1.c @@ -128,11 +128,7 @@ __ieee754_j1 (double x) if (huge + x > one) /* inexact if x!=0 necessary */ { double ret = 0.5 * x; - if (fabs (ret) < DBL_MIN) - { - double force_underflow = ret * ret; - math_force_eval (force_underflow); - } + math_check_force_underflow (ret); return ret; } } diff --git a/sysdeps/ieee754/dbl-64/e_jn.c b/sysdeps/ieee754/dbl-64/e_jn.c index ccef2dcd80..d6ab0bced5 100644 --- a/sysdeps/ieee754/dbl-64/e_jn.c +++ b/sysdeps/ieee754/dbl-64/e_jn.c @@ -246,11 +246,8 @@ __ieee754_jn (int n, double x) } if (ret == 0) ret = __copysign (DBL_MIN, ret) * DBL_MIN; - else if (fabs (ret) < DBL_MIN) - { - double force_underflow = ret * ret; - math_force_eval (force_underflow); - } + else + math_check_force_underflow (ret); return ret; } strong_alias (__ieee754_jn, __jn_finite) diff --git a/sysdeps/ieee754/dbl-64/e_sinh.c b/sysdeps/ieee754/dbl-64/e_sinh.c index 291bfad0b3..8479bdd9b8 100644 --- a/sysdeps/ieee754/dbl-64/e_sinh.c +++ b/sysdeps/ieee754/dbl-64/e_sinh.c @@ -60,11 +60,7 @@ __ieee754_sinh (double x) if (ix < 0x40360000) /* |x|<22 */ { if (__glibc_unlikely (ix < 0x3e300000)) { /* |x|<2**-28 */ - if (fabs (x) < DBL_MIN) - { - double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if (shuge + x > one) return x; /* sinh(tiny) = tiny with inexact */ diff --git a/sysdeps/ieee754/dbl-64/s_asinh.c b/sysdeps/ieee754/dbl-64/s_asinh.c index ebe471015b..9193301b5e 100644 --- a/sysdeps/ieee754/dbl-64/s_asinh.c +++ b/sysdeps/ieee754/dbl-64/s_asinh.c @@ -39,11 +39,7 @@ __asinh (double x) ix = hx & 0x7fffffff; if (__glibc_unlikely (ix < 0x3e300000)) /* |x|<2**-28 */ { - if (fabs (x) < DBL_MIN) - { - double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if (huge + x > one) return x; /* return x inexact except 0 */ } diff --git a/sysdeps/ieee754/dbl-64/s_atan.c b/sysdeps/ieee754/dbl-64/s_atan.c index 5035ae87bc..5160cd1b66 100644 --- a/sysdeps/ieee754/dbl-64/s_atan.c +++ b/sysdeps/ieee754/dbl-64/s_atan.c @@ -90,11 +90,7 @@ atan (double x) { if (u < A) { - if (u < DBL_MIN) - { - double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow_nonneg (u); return x; } else diff --git a/sysdeps/ieee754/dbl-64/s_erf.c b/sysdeps/ieee754/dbl-64/s_erf.c index 77cd50d935..e59f5f33ce 100644 --- a/sysdeps/ieee754/dbl-64/s_erf.c +++ b/sysdeps/ieee754/dbl-64/s_erf.c @@ -213,11 +213,7 @@ __erf (double x) { /* Avoid spurious underflow. */ double ret = 0.0625 * (16.0 * x + (16.0 * efx) * x); - if (fabs (ret) < DBL_MIN) - { - double force_underflow = ret * ret; - math_force_eval (force_underflow); - } + math_check_force_underflow (ret); return ret; } return x + efx * x; diff --git a/sysdeps/ieee754/dbl-64/s_expm1.c b/sysdeps/ieee754/dbl-64/s_expm1.c index 41ef63a786..54d771007a 100644 --- a/sysdeps/ieee754/dbl-64/s_expm1.c +++ b/sysdeps/ieee754/dbl-64/s_expm1.c @@ -195,11 +195,7 @@ __expm1 (double x) } else if (hx < 0x3c900000) /* when |x|<2**-54, return x */ { - if (fabs (x) < DBL_MIN) - { - double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); t = huge + x; /* return x with inexact flags when x!=0 */ return x - (t - (huge + x)); } diff --git a/sysdeps/ieee754/dbl-64/s_fma.c b/sysdeps/ieee754/dbl-64/s_fma.c index 278b690f9b..8b4e1331f6 100644 --- a/sysdeps/ieee754/dbl-64/s_fma.c +++ b/sysdeps/ieee754/dbl-64/s_fma.c @@ -90,8 +90,8 @@ __fma (double x, double y, double z) && w.ieee.mantissa1 == 0 && w.ieee.mantissa0 == 0))) { - volatile double force_underflow = x * y; - (void) force_underflow; + double force_underflow = x * y; + math_force_eval (force_underflow); } return v.d * 0x1p-54; } diff --git a/sysdeps/ieee754/dbl-64/s_log1p.c b/sysdeps/ieee754/dbl-64/s_log1p.c index cff555b0aa..340f6377f7 100644 --- a/sysdeps/ieee754/dbl-64/s_log1p.c +++ b/sysdeps/ieee754/dbl-64/s_log1p.c @@ -120,11 +120,7 @@ __log1p (double x) math_force_eval (two54 + x); /* raise inexact */ if (ax < 0x3c900000) /* |x| < 2**-54 */ { - if (fabs (x) < DBL_MIN) - { - double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x; } else diff --git a/sysdeps/ieee754/dbl-64/s_sin.c b/sysdeps/ieee754/dbl-64/s_sin.c index eff120e88d..48c924c6b6 100644 --- a/sysdeps/ieee754/dbl-64/s_sin.c +++ b/sysdeps/ieee754/dbl-64/s_sin.c @@ -297,11 +297,7 @@ __sin (double x) k = 0x7fffffff & m; /* no sign */ if (k < 0x3e500000) /* if x->0 =>sin(x)=x */ { - if (fabs (x) < DBL_MIN) - { - double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); retval = x; } /*---------------------------- 2^-26 < |x|< 0.25 ----------------------*/ diff --git a/sysdeps/ieee754/dbl-64/s_tan.c b/sysdeps/ieee754/dbl-64/s_tan.c index b4e3bd2a31..65d056adec 100644 --- a/sysdeps/ieee754/dbl-64/s_tan.c +++ b/sysdeps/ieee754/dbl-64/s_tan.c @@ -92,11 +92,7 @@ tan (double x) /* (I) The case abs(x) <= 1.259e-8 */ if (w <= g1.d) { - if (w < DBL_MIN) - { - double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow_nonneg (w); retval = x; goto ret; } diff --git a/sysdeps/ieee754/dbl-64/s_tanh.c b/sysdeps/ieee754/dbl-64/s_tanh.c index 4f9fcfd2bd..344a2f0330 100644 --- a/sysdeps/ieee754/dbl-64/s_tanh.c +++ b/sysdeps/ieee754/dbl-64/s_tanh.c @@ -70,11 +70,7 @@ __tanh (double x) return x; /* x == +-0 */ if (ix < 0x3c800000) /* |x|<2**-55 */ { - if (fabs (x) < DBL_MIN) - { - double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x * (one + x); /* tanh(small) = small */ } if (ix >= 0x3ff00000) /* |x|>=1 */ diff --git a/sysdeps/ieee754/flt-32/e_asinf.c b/sysdeps/ieee754/flt-32/e_asinf.c index 00bad4239b..2ca2dbcb28 100644 --- a/sysdeps/ieee754/flt-32/e_asinf.c +++ b/sysdeps/ieee754/flt-32/e_asinf.c @@ -73,11 +73,7 @@ float __ieee754_asinf(float x) return (x-x)/(x-x); /* asin(|x|>1) is NaN */ } else if (ix<0x3f000000) { /* |x|<0.5 */ if(ix<0x32000000) { /* if |x| < 2**-27 */ - if (fabsf (x) < FLT_MIN) - { - float force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if(huge+x>one) return x;/* return x with inexact if x!=0*/ } else { t = x*x; diff --git a/sysdeps/ieee754/flt-32/e_atanhf.c b/sysdeps/ieee754/flt-32/e_atanhf.c index bc74960e16..77e4b03c75 100644 --- a/sysdeps/ieee754/flt-32/e_atanhf.c +++ b/sysdeps/ieee754/flt-32/e_atanhf.c @@ -52,11 +52,7 @@ __ieee754_atanhf (float x) if (__glibc_unlikely (xa < 0x1.0p-28f)) { math_force_eval (huge + x); - if (fabsf (x) < FLT_MIN) - { - float force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x; } diff --git a/sysdeps/ieee754/flt-32/e_exp2f.c b/sysdeps/ieee754/flt-32/e_exp2f.c index 170c565895..d8e7a9c8bc 100644 --- a/sysdeps/ieee754/flt-32/e_exp2f.c +++ b/sysdeps/ieee754/flt-32/e_exp2f.c @@ -111,11 +111,7 @@ __ieee754_exp2f (float x) else { result *= scale_u.f; - if (result < FLT_MIN) - { - float force_underflow = result * result; - math_force_eval (force_underflow); - } + math_check_force_underflow_nonneg (result); return result; } } diff --git a/sysdeps/ieee754/flt-32/e_gammaf_r.c b/sysdeps/ieee754/flt-32/e_gammaf_r.c index 183db1e033..f97ca34705 100644 --- a/sysdeps/ieee754/flt-32/e_gammaf_r.c +++ b/sysdeps/ieee754/flt-32/e_gammaf_r.c @@ -179,11 +179,7 @@ __ieee754_gammaf_r (float x, int *signgamp) float tret = (float) M_PI / (-x * sinpix * gammaf_positive (-x, &exp2_adj)); ret = __scalbnf (tret, -exp2_adj); - if (ret < FLT_MIN) - { - float force_underflow = ret * ret; - math_force_eval (force_underflow); - } + math_check_force_underflow_nonneg (ret); } } ret = math_narrow_eval (ret); diff --git a/sysdeps/ieee754/flt-32/e_j1f.c b/sysdeps/ieee754/flt-32/e_j1f.c index 63de21f609..e24024f22e 100644 --- a/sysdeps/ieee754/flt-32/e_j1f.c +++ b/sysdeps/ieee754/flt-32/e_j1f.c @@ -72,10 +72,7 @@ __ieee754_j1f(float x) if(__builtin_expect(ix<0x32000000, 0)) { /* |x|<2**-27 */ if(huge+x>one) { /* inexact if x!=0 necessary */ float ret = (float) 0.5 * x; - if (fabsf (ret) < FLT_MIN) { - float force_underflow = ret * ret; - math_force_eval (force_underflow); - } + math_check_force_underflow (ret); return ret; } } diff --git a/sysdeps/ieee754/flt-32/e_jnf.c b/sysdeps/ieee754/flt-32/e_jnf.c index 44a3761adb..d18922aa05 100644 --- a/sysdeps/ieee754/flt-32/e_jnf.c +++ b/sysdeps/ieee754/flt-32/e_jnf.c @@ -170,10 +170,8 @@ __ieee754_jnf(int n, float x) } if (ret == 0) ret = __copysignf (FLT_MIN, ret) * FLT_MIN; - else if (fabsf (ret) < FLT_MIN) { - float force_underflow = ret * ret; - math_force_eval (force_underflow); - } + else + math_check_force_underflow (ret); return ret; } strong_alias (__ieee754_jnf, __jnf_finite) diff --git a/sysdeps/ieee754/flt-32/e_sinhf.c b/sysdeps/ieee754/flt-32/e_sinhf.c index a24fa0c4bc..6100d95c55 100644 --- a/sysdeps/ieee754/flt-32/e_sinhf.c +++ b/sysdeps/ieee754/flt-32/e_sinhf.c @@ -36,11 +36,7 @@ __ieee754_sinhf(float x) /* |x| in [0,22], return sign(x)*0.5*(E+E/(E+1))) */ if (ix < 0x41b00000) { /* |x|<22 */ if (__builtin_expect(ix<0x31800000, 0)) { /* |x|<2**-28 */ - if (fabsf (x) < FLT_MIN) - { - float force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if(shuge+x>one) return x;/* sinh(tiny) = tiny with inexact */ } t = __expm1f(fabsf(x)); diff --git a/sysdeps/ieee754/flt-32/k_sinf.c b/sysdeps/ieee754/flt-32/k_sinf.c index 0c98a2ae91..a195d59466 100644 --- a/sysdeps/ieee754/flt-32/k_sinf.c +++ b/sysdeps/ieee754/flt-32/k_sinf.c @@ -38,11 +38,7 @@ float __kernel_sinf(float x, float y, int iy) ix &= 0x7fffffff; /* high word of x */ if(ix<0x32000000) /* |x| < 2**-27 */ { - if (fabsf (x) < FLT_MIN) - { - float force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if ((int) x == 0) return x; /* generate inexact */ } diff --git a/sysdeps/ieee754/flt-32/k_tanf.c b/sysdeps/ieee754/flt-32/k_tanf.c index 2f2076d6fe..9f0e55860f 100644 --- a/sysdeps/ieee754/flt-32/k_tanf.c +++ b/sysdeps/ieee754/flt-32/k_tanf.c @@ -51,11 +51,7 @@ float __kernel_tanf(float x, float y, int iy) if((ix|(iy+1))==0) return one/fabsf(x); else if (iy == 1) { - if (fabsf (x) < FLT_MIN) - { - float force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x; } else diff --git a/sysdeps/ieee754/flt-32/s_asinhf.c b/sysdeps/ieee754/flt-32/s_asinhf.c index 697faa843c..da9cafb600 100644 --- a/sysdeps/ieee754/flt-32/s_asinhf.c +++ b/sysdeps/ieee754/flt-32/s_asinhf.c @@ -30,11 +30,7 @@ __asinhf(float x) GET_FLOAT_WORD(hx,x); ix = hx&0x7fffffff; if(__builtin_expect(ix< 0x38000000, 0)) { /* |x|<2**-14 */ - if (fabsf (x) < FLT_MIN) - { - float force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if(huge+x>one) return x; /* return x inexact except 0 */ } if(__builtin_expect(ix>0x47000000, 0)) { /* |x| > 2**14 */ diff --git a/sysdeps/ieee754/flt-32/s_atanf.c b/sysdeps/ieee754/flt-32/s_atanf.c index be2addbdff..e322a1d41f 100644 --- a/sysdeps/ieee754/flt-32/s_atanf.c +++ b/sysdeps/ieee754/flt-32/s_atanf.c @@ -67,11 +67,7 @@ float __atanf(float x) else return -atanhi[3]-atanlo[3]; } if (ix < 0x3ee00000) { /* |x| < 0.4375 */ if (ix < 0x31000000) { /* |x| < 2^-29 */ - if (fabsf (x) < FLT_MIN) - { - float force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if(huge+x>one) return x; /* raise inexact */ } id = -1; diff --git a/sysdeps/ieee754/flt-32/s_erff.c b/sysdeps/ieee754/flt-32/s_erff.c index 1aabce5cb8..3162d81d08 100644 --- a/sysdeps/ieee754/flt-32/s_erff.c +++ b/sysdeps/ieee754/flt-32/s_erff.c @@ -113,11 +113,7 @@ float __erff(float x) { /* Avoid spurious underflow. */ float ret = 0.0625f * (16.0f * x + (16.0f * efx) * x); - if (fabsf (ret) < FLT_MIN) - { - float force_underflow = ret * ret; - math_force_eval (force_underflow); - } + math_check_force_underflow (ret); return ret; } return x + efx*x; diff --git a/sysdeps/ieee754/flt-32/s_expm1f.c b/sysdeps/ieee754/flt-32/s_expm1f.c index c81b057f24..c515d25e28 100644 --- a/sysdeps/ieee754/flt-32/s_expm1f.c +++ b/sysdeps/ieee754/flt-32/s_expm1f.c @@ -81,11 +81,7 @@ __expm1f(float x) c = (hi-x)-lo; } else if(hx < 0x33000000) { /* when |x|<2**-25, return x */ - if (fabsf (x) < FLT_MIN) - { - float force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); t = huge+x; /* return x with inexact flags when x!=0 */ return x - (t-(huge+x)); } diff --git a/sysdeps/ieee754/flt-32/s_log1pf.c b/sysdeps/ieee754/flt-32/s_log1pf.c index 83a09f1414..ade60a2e27 100644 --- a/sysdeps/ieee754/flt-32/s_log1pf.c +++ b/sysdeps/ieee754/flt-32/s_log1pf.c @@ -50,11 +50,7 @@ __log1pf(float x) math_force_eval(two25+x); /* raise inexact */ if (ax<0x24800000) /* |x| < 2**-54 */ { - if (fabsf (x) < FLT_MIN) - { - float force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x; } else diff --git a/sysdeps/ieee754/flt-32/s_tanhf.c b/sysdeps/ieee754/flt-32/s_tanhf.c index 5b48fb2e00..f70702b29c 100644 --- a/sysdeps/ieee754/flt-32/s_tanhf.c +++ b/sysdeps/ieee754/flt-32/s_tanhf.c @@ -43,11 +43,7 @@ float __tanhf(float x) return x; /* x == +-0 */ if (ix<0x24000000) /* |x|<2**-55 */ { - if (fabsf (x) < FLT_MIN) - { - float force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x*(one+x); /* tanh(small) = small */ } if (ix>=0x3f800000) { /* |x|>=1 */ diff --git a/sysdeps/ieee754/ldbl-128/e_asinl.c b/sysdeps/ieee754/ldbl-128/e_asinl.c index 691ac267fb..5a0e473ef0 100644 --- a/sysdeps/ieee754/ldbl-128/e_asinl.c +++ b/sysdeps/ieee754/ldbl-128/e_asinl.c @@ -153,11 +153,7 @@ __ieee754_asinl (long double x) { if (ix < 0x3fc60000) /* |x| < 2**-57 */ { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); long double force_inexact = huge + x; math_force_eval (force_inexact); return x; /* return x with inexact if x!=0 */ diff --git a/sysdeps/ieee754/ldbl-128/e_atanhl.c b/sysdeps/ieee754/ldbl-128/e_atanhl.c index a5a7ee0712..7fa53ef436 100644 --- a/sysdeps/ieee754/ldbl-128/e_atanhl.c +++ b/sysdeps/ieee754/ldbl-128/e_atanhl.c @@ -60,11 +60,7 @@ __ieee754_atanhl(long double x) } if(ix<0x3fc60000 && (huge+x)>zero) /* x < 2^-57 */ { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x; } diff --git a/sysdeps/ieee754/ldbl-128/e_expl.c b/sysdeps/ieee754/ldbl-128/e_expl.c index 1cd095cb77..30ec34136f 100644 --- a/sysdeps/ieee754/ldbl-128/e_expl.c +++ b/sysdeps/ieee754/ldbl-128/e_expl.c @@ -232,11 +232,7 @@ __ieee754_expl (long double x) else { result *= scale_u.d; - if (result < LDBL_MIN) - { - long double force_underflow = result * result; - math_force_eval (force_underflow); - } + math_check_force_underflow_nonneg (result); return result; } } diff --git a/sysdeps/ieee754/ldbl-128/e_gammal_r.c b/sysdeps/ieee754/ldbl-128/e_gammal_r.c index c44f031745..7c11ae40cd 100644 --- a/sysdeps/ieee754/ldbl-128/e_gammal_r.c +++ b/sysdeps/ieee754/ldbl-128/e_gammal_r.c @@ -194,11 +194,7 @@ __ieee754_gammal_r (long double x, int *signgamp) ret = M_PIl / (-x * sinpix * gammal_positive (-x, &exp2_adj)); ret = __scalbnl (ret, -exp2_adj); - if (ret < LDBL_MIN) - { - long double force_underflow = ret * ret; - math_force_eval (force_underflow); - } + math_check_force_underflow_nonneg (ret); } } } diff --git a/sysdeps/ieee754/ldbl-128/e_j1l.c b/sysdeps/ieee754/ldbl-128/e_j1l.c index 591c38efd0..70ecf5eae3 100644 --- a/sysdeps/ieee754/ldbl-128/e_j1l.c +++ b/sysdeps/ieee754/ldbl-128/e_j1l.c @@ -700,11 +700,7 @@ __ieee754_j1l (long double x) if (xx <= 0x1p-58L) { long double ret = x * 0.5L; - if (fabsl (ret) < LDBL_MIN) - { - long double force_underflow = ret * ret; - math_force_eval (force_underflow); - } + math_check_force_underflow (ret); return ret; } if (xx <= 2.0L) diff --git a/sysdeps/ieee754/ldbl-128/e_jnl.c b/sysdeps/ieee754/ldbl-128/e_jnl.c index a419994a86..ee5a16b62e 100644 --- a/sysdeps/ieee754/ldbl-128/e_jnl.c +++ b/sysdeps/ieee754/ldbl-128/e_jnl.c @@ -297,11 +297,8 @@ __ieee754_jnl (int n, long double x) } if (ret == 0) ret = __copysignl (LDBL_MIN, ret) * LDBL_MIN; - else if (fabsl (ret) < LDBL_MIN) - { - long double force_underflow = ret * ret; - math_force_eval (force_underflow); - } + else + math_check_force_underflow (ret); return ret; } strong_alias (__ieee754_jnl, __jnl_finite) diff --git a/sysdeps/ieee754/ldbl-128/e_sinhl.c b/sysdeps/ieee754/ldbl-128/e_sinhl.c index b0244a828d..11974a39af 100644 --- a/sysdeps/ieee754/ldbl-128/e_sinhl.c +++ b/sysdeps/ieee754/ldbl-128/e_sinhl.c @@ -88,11 +88,7 @@ __ieee754_sinhl (long double x) { if (ix < 0x3fc60000) /* |x| < 2^-57 */ { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if (shuge + x > one) return x; /* sinh(tiny) = tiny with inexact */ } diff --git a/sysdeps/ieee754/ldbl-128/k_sincosl.c b/sysdeps/ieee754/ldbl-128/k_sincosl.c index 7b5c4b0e81..4f0de3d873 100644 --- a/sysdeps/ieee754/ldbl-128/k_sincosl.c +++ b/sysdeps/ieee754/ldbl-128/k_sincosl.c @@ -111,11 +111,7 @@ __kernel_sincosl(long double x, long double y, long double *sinx, long double *c polynomial of degree 16(17). */ if (tix < 0x3fc60000) /* |x| < 2^-57 */ { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if (!((int)x)) /* generate inexact */ { *sinx = x; diff --git a/sysdeps/ieee754/ldbl-128/k_sinl.c b/sysdeps/ieee754/ldbl-128/k_sinl.c index 04d539ff1a..d9ef62c653 100644 --- a/sysdeps/ieee754/ldbl-128/k_sinl.c +++ b/sysdeps/ieee754/ldbl-128/k_sinl.c @@ -92,11 +92,7 @@ __kernel_sinl(long double x, long double y, int iy) polynomial of degree 17. */ if (tix < 0x3fc60000) /* |x| < 2^-57 */ { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if (!((int)x)) return x; /* generate inexact */ } z = x * x; diff --git a/sysdeps/ieee754/ldbl-128/k_tanl.c b/sysdeps/ieee754/ldbl-128/k_tanl.c index 6a6fa9f0a6..8ff9192947 100644 --- a/sysdeps/ieee754/ldbl-128/k_tanl.c +++ b/sysdeps/ieee754/ldbl-128/k_tanl.c @@ -101,11 +101,7 @@ __kernel_tanl (long double x, long double y, int iy) return one / fabs (x); else if (iy == 1) { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x; } else diff --git a/sysdeps/ieee754/ldbl-128/s_asinhl.c b/sysdeps/ieee754/ldbl-128/s_asinhl.c index 8d5721a73c..5f3b9f2c76 100644 --- a/sysdeps/ieee754/ldbl-128/s_asinhl.c +++ b/sysdeps/ieee754/ldbl-128/s_asinhl.c @@ -52,11 +52,7 @@ __asinhl (long double x) return x + x; /* x is inf or NaN */ if (ix < 0x3fc70000) { /* |x| < 2^ -56 */ - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if (huge + x > one) return x; /* return x inexact except 0 */ } diff --git a/sysdeps/ieee754/ldbl-128/s_atanl.c b/sysdeps/ieee754/ldbl-128/s_atanl.c index 1367b6b15d..aaae701551 100644 --- a/sysdeps/ieee754/ldbl-128/s_atanl.c +++ b/sysdeps/ieee754/ldbl-128/s_atanl.c @@ -202,11 +202,7 @@ __atanl (long double x) if (k <= 0x3fc50000) /* |x| < 2**-58 */ { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); /* Raise inexact. */ if (huge + x > 0.0) return x; diff --git a/sysdeps/ieee754/ldbl-128/s_erfl.c b/sysdeps/ieee754/ldbl-128/s_erfl.c index 08c80a33ea..dd275a7dd9 100644 --- a/sysdeps/ieee754/ldbl-128/s_erfl.c +++ b/sysdeps/ieee754/ldbl-128/s_erfl.c @@ -785,11 +785,7 @@ __erfl (long double x) { /* Avoid spurious underflow. */ long double ret = 0.0625 * (16.0 * x + (16.0 * efx) * x); - if (fabsl (ret) < LDBL_MIN) - { - long double force_underflow = ret * ret; - math_force_eval (force_underflow); - } + math_check_force_underflow (ret); return ret; } return x + efx * x; diff --git a/sysdeps/ieee754/ldbl-128/s_expm1l.c b/sysdeps/ieee754/ldbl-128/s_expm1l.c index f1a68c878b..b1100a9d0e 100644 --- a/sysdeps/ieee754/ldbl-128/s_expm1l.c +++ b/sysdeps/ieee754/ldbl-128/s_expm1l.c @@ -128,11 +128,7 @@ __expm1l (long double x) when the result does underflow. */ if (fabsl (x) < 0x1p-113L) { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x; } diff --git a/sysdeps/ieee754/ldbl-128/s_fmal.c b/sysdeps/ieee754/ldbl-128/s_fmal.c index 5abc9105e5..e231ce6344 100644 --- a/sysdeps/ieee754/ldbl-128/s_fmal.c +++ b/sysdeps/ieee754/ldbl-128/s_fmal.c @@ -94,8 +94,8 @@ __fmal (long double x, long double y, long double z) && w.ieee.mantissa1 == 0 && w.ieee.mantissa0 == 0))) { - volatile long double force_underflow = x * y; - (void) force_underflow; + long double force_underflow = x * y; + math_force_eval (force_underflow); } return v.d * 0x1p-114L; } diff --git a/sysdeps/ieee754/ldbl-128/s_log1pl.c b/sysdeps/ieee754/ldbl-128/s_log1pl.c index 960955077b..9806ab6d63 100644 --- a/sysdeps/ieee754/ldbl-128/s_log1pl.c +++ b/sysdeps/ieee754/ldbl-128/s_log1pl.c @@ -140,11 +140,7 @@ __log1pl (long double xm1) if ((hx & 0x7fffffff) < 0x3f8e0000) { - if (fabsl (xm1) < LDBL_MIN) - { - long double force_underflow = xm1 * xm1; - math_force_eval (force_underflow); - } + math_check_force_underflow (xm1); if ((int) xm1 == 0) return xm1; } diff --git a/sysdeps/ieee754/ldbl-128/s_tanhl.c b/sysdeps/ieee754/ldbl-128/s_tanhl.c index 8b1706fcdc..f7a1d20f79 100644 --- a/sysdeps/ieee754/ldbl-128/s_tanhl.c +++ b/sysdeps/ieee754/ldbl-128/s_tanhl.c @@ -75,11 +75,7 @@ __tanhl (long double x) return x; /* x == +- 0 */ if (ix < 0x3fc60000) /* |x| < 2^-57 */ { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x * (one + tiny); /* tanh(small) = small */ } u.parts32.w0 = ix; /* Absolute value of x. */ diff --git a/sysdeps/ieee754/ldbl-128ibm/e_asinl.c b/sysdeps/ieee754/ldbl-128ibm/e_asinl.c index 57c3ac09c8..6ed5e8d68d 100644 --- a/sysdeps/ieee754/ldbl-128ibm/e_asinl.c +++ b/sysdeps/ieee754/ldbl-128ibm/e_asinl.c @@ -147,11 +147,7 @@ __ieee754_asinl (long double x) { if (a < 6.938893903907228e-18L) /* |x| < 2**-57 */ { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); long double force_inexact = huge + x; math_force_eval (force_inexact); return x; /* return x with inexact if x!=0 */ diff --git a/sysdeps/ieee754/ldbl-128ibm/e_atanhl.c b/sysdeps/ieee754/ldbl-128ibm/e_atanhl.c index bcd1fce4ed..b576f42030 100644 --- a/sysdeps/ieee754/ldbl-128ibm/e_atanhl.c +++ b/sysdeps/ieee754/ldbl-128ibm/e_atanhl.c @@ -57,11 +57,7 @@ __ieee754_atanhl(long double x) } if(ix<0x3c70000000000000LL&&(huge+x)>zero) /* x<2**-56 */ { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x; } x = fabsl (x); diff --git a/sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c b/sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c index 420842e2d6..e8e443ff31 100644 --- a/sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c +++ b/sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c @@ -194,11 +194,7 @@ __ieee754_gammal_r (long double x, int *signgamp) ret = M_PIl / (-x * sinpix * gammal_positive (-x, &exp2_adj)); ret = __scalbnl (ret, -exp2_adj); - if (ret < LDBL_MIN) - { - long double force_underflow = ret * ret; - math_force_eval (force_underflow); - } + math_check_force_underflow_nonneg (ret); } } } diff --git a/sysdeps/ieee754/ldbl-128ibm/e_jnl.c b/sysdeps/ieee754/ldbl-128ibm/e_jnl.c index 7594196a1f..c33bc19d09 100644 --- a/sysdeps/ieee754/ldbl-128ibm/e_jnl.c +++ b/sysdeps/ieee754/ldbl-128ibm/e_jnl.c @@ -297,11 +297,8 @@ __ieee754_jnl (int n, long double x) } if (ret == 0) ret = __copysignl (LDBL_MIN, ret) * LDBL_MIN; - else if (fabsl (ret) < LDBL_MIN) - { - long double force_underflow = ret * ret; - math_force_eval (force_underflow); - } + else + math_check_force_underflow (ret); return ret; } strong_alias (__ieee754_jnl, __jnl_finite) diff --git a/sysdeps/ieee754/ldbl-128ibm/e_sinhl.c b/sysdeps/ieee754/ldbl-128ibm/e_sinhl.c index 00115df944..29700ad4ab 100644 --- a/sysdeps/ieee754/ldbl-128ibm/e_sinhl.c +++ b/sysdeps/ieee754/ldbl-128ibm/e_sinhl.c @@ -54,11 +54,7 @@ __ieee754_sinhl(long double x) /* |x| in [0,40], return sign(x)*0.5*(E+E/(E+1))) */ if (ix < 0x4044000000000000LL) { /* |x|<40 */ if (ix<0x3c90000000000000LL) { /* |x|<2**-54 */ - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if(shuge+x>one) return x;/* sinhl(tiny) = tiny with inexact */ } t = __expm1l(fabsl(x)); diff --git a/sysdeps/ieee754/ldbl-128ibm/k_sincosl.c b/sysdeps/ieee754/ldbl-128ibm/k_sincosl.c index 0a76e1c7e7..b361043dd2 100644 --- a/sysdeps/ieee754/ldbl-128ibm/k_sincosl.c +++ b/sysdeps/ieee754/ldbl-128ibm/k_sincosl.c @@ -114,11 +114,7 @@ __kernel_sincosl(long double x, long double y, long double *sinx, long double *c polynomial of degree 16(17). */ if (tix < 0x3c600000) /* |x| < 2^-57 */ { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if (!((int)x)) /* generate inexact */ { *sinx = x; diff --git a/sysdeps/ieee754/ldbl-128ibm/k_sinl.c b/sysdeps/ieee754/ldbl-128ibm/k_sinl.c index 2050cd2b49..800bd547fd 100644 --- a/sysdeps/ieee754/ldbl-128ibm/k_sinl.c +++ b/sysdeps/ieee754/ldbl-128ibm/k_sinl.c @@ -95,11 +95,7 @@ __kernel_sinl(long double x, long double y, int iy) polynomial of degree 17. */ if (tix < 0x3c600000) /* |x| < 2^-57 */ { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if (!((int)x)) return x; /* generate inexact */ } z = x * x; diff --git a/sysdeps/ieee754/ldbl-128ibm/k_tanl.c b/sysdeps/ieee754/ldbl-128ibm/k_tanl.c index e50cc88da4..22e53fcc69 100644 --- a/sysdeps/ieee754/ldbl-128ibm/k_tanl.c +++ b/sysdeps/ieee754/ldbl-128ibm/k_tanl.c @@ -101,11 +101,7 @@ __kernel_tanl (long double x, long double y, int iy) return one / fabs (x); else if (iy == 1) { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x; } else diff --git a/sysdeps/ieee754/ldbl-128ibm/s_asinhl.c b/sysdeps/ieee754/ldbl-128ibm/s_asinhl.c index dda7f780fc..aa9a9ba213 100644 --- a/sysdeps/ieee754/ldbl-128ibm/s_asinhl.c +++ b/sysdeps/ieee754/ldbl-128ibm/s_asinhl.c @@ -46,11 +46,7 @@ long double __asinhl(long double x) ix = hx&0x7fffffffffffffffLL; if(ix>=0x7ff0000000000000LL) return x+x; /* x is inf or NaN */ if(ix< 0x3c70000000000000LL) { /* |x|<2**-56 */ - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if(huge+x>one) return x; /* return x inexact except 0 */ } if(ix>0x4370000000000000LL) { /* |x| > 2**56 */ diff --git a/sysdeps/ieee754/ldbl-128ibm/s_atanl.c b/sysdeps/ieee754/ldbl-128ibm/s_atanl.c index 6ddf4b1c5e..0560d820ae 100644 --- a/sysdeps/ieee754/ldbl-128ibm/s_atanl.c +++ b/sysdeps/ieee754/ldbl-128ibm/s_atanl.c @@ -199,11 +199,7 @@ __atanl (long double x) if (k <= 0x3c800000) /* |x| <= 2**-55. */ { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); /* Raise inexact. */ if (1e300L + x > 0.0) return x; diff --git a/sysdeps/ieee754/ldbl-128ibm/s_erfl.c b/sysdeps/ieee754/ldbl-128ibm/s_erfl.c index f6fcf48cfa..455c645561 100644 --- a/sysdeps/ieee754/ldbl-128ibm/s_erfl.c +++ b/sysdeps/ieee754/ldbl-128ibm/s_erfl.c @@ -805,11 +805,7 @@ __erfl (long double x) if (x == 0) return x; long double ret = 0.0625 * (16.0 * x + (16.0 * efx) * x); - if (fabsl (ret) < LDBL_MIN) - { - long double force_underflow = ret * ret; - math_force_eval (force_underflow); - } + math_check_force_underflow (ret); return ret; } return x + efx * x; diff --git a/sysdeps/ieee754/ldbl-128ibm/s_tanhl.c b/sysdeps/ieee754/ldbl-128ibm/s_tanhl.c index 5342a8b19a..292020cabf 100644 --- a/sysdeps/ieee754/ldbl-128ibm/s_tanhl.c +++ b/sysdeps/ieee754/ldbl-128ibm/s_tanhl.c @@ -68,11 +68,7 @@ long double __tanhl(long double x) return x; /* x == +-0 */ if (ix<0x3c60000000000000LL) /* |x|<2**-57 */ { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x*(one+x); /* tanh(small) = small */ } if (ix>=0x3ff0000000000000LL) { /* |x|>=1 */ diff --git a/sysdeps/ieee754/ldbl-96/e_asinl.c b/sysdeps/ieee754/ldbl-96/e_asinl.c index 2973bf071b..f52b931459 100644 --- a/sysdeps/ieee754/ldbl-96/e_asinl.c +++ b/sysdeps/ieee754/ldbl-96/e_asinl.c @@ -112,11 +112,7 @@ __ieee754_asinl (long double x) { /* |x|<0.5 */ if (ix < 0x3fde8000) { /* if |x| < 2**-33 */ - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if (huge + x > one) return x; /* return x with inexact if x!=0 */ } diff --git a/sysdeps/ieee754/ldbl-96/e_atanhl.c b/sysdeps/ieee754/ldbl-96/e_atanhl.c index 9a957c9065..b99a83c6ee 100644 --- a/sysdeps/ieee754/ldbl-96/e_atanhl.c +++ b/sysdeps/ieee754/ldbl-96/e_atanhl.c @@ -55,11 +55,7 @@ __ieee754_atanhl(long double x) return x/zero; if(ix<0x3fdf) { math_force_eval(huge+x); - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x; /* x<2**-32 */ } SET_LDOUBLE_EXP(x,ix); diff --git a/sysdeps/ieee754/ldbl-96/e_gammal_r.c b/sysdeps/ieee754/ldbl-96/e_gammal_r.c index a5767e7795..78495d1908 100644 --- a/sysdeps/ieee754/ldbl-96/e_gammal_r.c +++ b/sysdeps/ieee754/ldbl-96/e_gammal_r.c @@ -186,11 +186,7 @@ __ieee754_gammal_r (long double x, int *signgamp) ret = M_PIl / (-x * sinpix * gammal_positive (-x, &exp2_adj)); ret = __scalbnl (ret, -exp2_adj); - if (ret < LDBL_MIN) - { - long double force_underflow = ret * ret; - math_force_eval (force_underflow); - } + math_check_force_underflow_nonneg (ret); } } } diff --git a/sysdeps/ieee754/ldbl-96/e_j1l.c b/sysdeps/ieee754/ldbl-96/e_j1l.c index 46e28dfe11..1bca949e5a 100644 --- a/sysdeps/ieee754/ldbl-96/e_j1l.c +++ b/sysdeps/ieee754/ldbl-96/e_j1l.c @@ -154,11 +154,7 @@ __ieee754_j1l (long double x) if (huge + x > one) /* inexact if x!=0 necessary */ { long double ret = 0.5 * x; - if (fabsl (ret) < LDBL_MIN) - { - long double force_underflow = ret * ret; - math_force_eval (force_underflow); - } + math_check_force_underflow (ret); return ret; } } diff --git a/sysdeps/ieee754/ldbl-96/e_jnl.c b/sysdeps/ieee754/ldbl-96/e_jnl.c index 2f3a452f55..ed2068b5e2 100644 --- a/sysdeps/ieee754/ldbl-96/e_jnl.c +++ b/sysdeps/ieee754/ldbl-96/e_jnl.c @@ -290,11 +290,8 @@ __ieee754_jnl (int n, long double x) } if (ret == 0) ret = __copysignl (LDBL_MIN, ret) * LDBL_MIN; - else if (fabsl (ret) < LDBL_MIN) - { - long double force_underflow = ret * ret; - math_force_eval (force_underflow); - } + else + math_check_force_underflow (ret); return ret; } strong_alias (__ieee754_jnl, __jnl_finite) diff --git a/sysdeps/ieee754/ldbl-96/e_sinhl.c b/sysdeps/ieee754/ldbl-96/e_sinhl.c index de6dff6843..095b142621 100644 --- a/sysdeps/ieee754/ldbl-96/e_sinhl.c +++ b/sysdeps/ieee754/ldbl-96/e_sinhl.c @@ -60,11 +60,7 @@ __ieee754_sinhl(long double x) /* |x| in [0,25], return sign(x)*0.5*(E+E/(E+1))) */ if (ix < 0x4003 || (ix == 0x4003 && i0 <= 0xc8000000)) { /* |x|<25 */ if (ix<0x3fdf) { /* |x|<2**-32 */ - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if(shuge+x>one) return x;/* sinh(tiny) = tiny with inexact */ } t = __expm1l(fabsl(x)); diff --git a/sysdeps/ieee754/ldbl-96/k_sinl.c b/sysdeps/ieee754/ldbl-96/k_sinl.c index b7b5ae359d..b709740847 100644 --- a/sysdeps/ieee754/ldbl-96/k_sinl.c +++ b/sysdeps/ieee754/ldbl-96/k_sinl.c @@ -96,11 +96,7 @@ __kernel_sinl(long double x, long double y, int iy) polynomial of degree 17. */ if (absx < 0x1p-33L) { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if (!((int)x)) return x; /* generate inexact */ } z = x * x; diff --git a/sysdeps/ieee754/ldbl-96/k_tanl.c b/sysdeps/ieee754/ldbl-96/k_tanl.c index 6276c06e71..6bee53e04a 100644 --- a/sysdeps/ieee754/ldbl-96/k_tanl.c +++ b/sysdeps/ieee754/ldbl-96/k_tanl.c @@ -98,11 +98,7 @@ __kernel_tanl (long double x, long double y, int iy) return one / fabsl (x); else if (iy == 1) { - if (absx < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow_nonneg (absx); return x; } else diff --git a/sysdeps/ieee754/ldbl-96/s_asinhl.c b/sysdeps/ieee754/ldbl-96/s_asinhl.c index 75e47c71ea..da49ea5988 100644 --- a/sysdeps/ieee754/ldbl-96/s_asinhl.c +++ b/sysdeps/ieee754/ldbl-96/s_asinhl.c @@ -45,11 +45,7 @@ long double __asinhl(long double x) GET_LDOUBLE_EXP(hx,x); ix = hx&0x7fff; if(__builtin_expect(ix< 0x3fde, 0)) { /* |x|<2**-34 */ - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); if(huge+x>one) return x; /* return x inexact except 0 */ } if(__builtin_expect(ix>0x4020,0)) { /* |x| > 2**34 */ diff --git a/sysdeps/ieee754/ldbl-96/s_erfl.c b/sysdeps/ieee754/ldbl-96/s_erfl.c index c27de812ca..d00adb1000 100644 --- a/sysdeps/ieee754/ldbl-96/s_erfl.c +++ b/sysdeps/ieee754/ldbl-96/s_erfl.c @@ -274,11 +274,7 @@ __erfl (long double x) { /* Avoid spurious underflow. */ long double ret = 0.0625 * (16.0 * x + (16.0 * efx) * x); - if (fabsl (ret) < LDBL_MIN) - { - long double force_underflow = ret * ret; - math_force_eval (force_underflow); - } + math_check_force_underflow (ret); return ret; } return x + efx * x; diff --git a/sysdeps/ieee754/ldbl-96/s_fmal.c b/sysdeps/ieee754/ldbl-96/s_fmal.c index 1232c9ebad..d11885e881 100644 --- a/sysdeps/ieee754/ldbl-96/s_fmal.c +++ b/sysdeps/ieee754/ldbl-96/s_fmal.c @@ -92,8 +92,8 @@ __fmal (long double x, long double y, long double z) && w.ieee.mantissa1 == 0 && w.ieee.mantissa0 == 0x80000000))) { - volatile long double force_underflow = x * y; - (void) force_underflow; + long double force_underflow = x * y; + math_force_eval (force_underflow); } return v.d * 0x1p-65L; } diff --git a/sysdeps/ieee754/ldbl-96/s_tanhl.c b/sysdeps/ieee754/ldbl-96/s_tanhl.c index 035037c8c7..38edf9f75e 100644 --- a/sysdeps/ieee754/ldbl-96/s_tanhl.c +++ b/sysdeps/ieee754/ldbl-96/s_tanhl.c @@ -71,11 +71,7 @@ long double __tanhl(long double x) return x; /* x == +- 0 */ if (ix<0x3fc8) /* |x|<2**-55 */ { - if (fabsl (x) < LDBL_MIN) - { - long double force_underflow = x * x; - math_force_eval (force_underflow); - } + math_check_force_underflow (x); return x*(one+tiny); /* tanh(small) = small */ } if (ix>=0x3fff) { /* |x|>=1 */ |