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| author | Joseph Myers <joseph@codesourcery.com> | 2015-09-23 18:14:57 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-09-23 18:14:57 +0000 |
| commit | 54142c44e963f410262fa868c159b6df858f3c53 (patch) | |
| tree | cc38bd53701afabc893a378e24fefd25d2062d86 /ChangeLog | |
| parent | 5df386a5492e00348c0ba4c6520d27783c253816 (diff) | |
| download | glibc-54142c44e963f410262fa868c159b6df858f3c53.tar.gz glibc-54142c44e963f410262fa868c159b6df858f3c53.tar.xz glibc-54142c44e963f410262fa868c159b6df858f3c53.zip | |
Use math_narrow_eval more consistently.
Where glibc code needs to avoid excess range and precision in floating-point arithmetic, code variously uses either asms or volatile to force the results of that arithmetic to memory; mostly this is conditional on FLT_EVAL_METHOD, but in the case of lrint / llrint functions some use of volatile is unconditional (and is present unnecessarily in versions for long double). This patch make such code use the recently-added math_narrow_eval macro consistently, removing the unnecessary uses of volatile in long double lrint / llrint implementations completely. Tested for x86_64, x86, mips64 and powerpc. * math/s_nexttowardf.c (__nexttowardf): Use math_narrow_eval. * stdlib/strtod_l.c: Include <math_private.h>. (overflow_value): Use math_narrow_eval. (underflow_value): Likewise. * sysdeps/i386/fpu/s_nexttoward.c (__nexttoward): Likewise. * sysdeps/i386/fpu/s_nexttowardf.c (__nexttowardf): Likewise. * sysdeps/ieee754/dbl-64/e_gamma_r.c (gamma_positive): Likewise. (__ieee754_gamma_r): Likewise. * sysdeps/ieee754/dbl-64/gamma_productf.c (__gamma_productf): Likewise. * sysdeps/ieee754/dbl-64/k_rem_pio2.c (__kernel_rem_pio2): Likewise. * sysdeps/ieee754/dbl-64/lgamma_neg.c (__lgamma_neg): Likewise. * sysdeps/ieee754/dbl-64/s_erf.c (__erfc): Likewise. * sysdeps/ieee754/dbl-64/s_llrint.c (__llrint): Likewise. * sysdeps/ieee754/dbl-64/s_lrint.c (__lrint): Likewise. * sysdeps/ieee754/flt-32/e_gammaf_r.c (gammaf_positive): Likewise. (__ieee754_gammaf_r): Likewise. * sysdeps/ieee754/flt-32/k_rem_pio2f.c (__kernel_rem_pio2f): Likewise. * sysdeps/ieee754/flt-32/lgamma_negf.c (__lgamma_negf): Likewise. * sysdeps/ieee754/flt-32/s_erff.c (__erfcf): Likewise. * sysdeps/ieee754/flt-32/s_llrintf.c (__llrintf): Likewise. * sysdeps/ieee754/flt-32/s_lrintf.c (__lrintf): Likewise. * sysdeps/ieee754/ldbl-128/s_llrintl.c (__llrintl): Do not use volatile. * sysdeps/ieee754/ldbl-128/s_lrintl.c (__lrintl): Likewise. * sysdeps/ieee754/ldbl-128/s_nexttoward.c (__nexttoward): Use math_narrow_eval. * sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c (__nexttoward): Likewise. * sysdeps/ieee754/ldbl-128ibm/s_nexttowardf.c (__nexttowardf): Likewise. * sysdeps/ieee754/ldbl-96/gamma_product.c (__gamma_product): Likewise. * sysdeps/ieee754/ldbl-96/s_llrintl.c (__llrintl): Do not use volatile. * sysdeps/ieee754/ldbl-96/s_lrintl.c (__lrintl): Likewise. * sysdeps/ieee754/ldbl-96/s_nexttoward.c (__nexttoward): Use math_narrow_eval. * sysdeps/ieee754/ldbl-96/s_nexttowardf.c (__nexttowardf): Likewise. * sysdeps/ieee754/ldbl-opt/s_nexttowardfd.c (__nldbl_nexttowardf): Likewise.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 0ae05c8c48..3a5f03d738 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,50 @@ +2015-09-23 Joseph Myers <joseph@codesourcery.com> + + * math/s_nexttowardf.c (__nexttowardf): Use math_narrow_eval. + * stdlib/strtod_l.c: Include <math_private.h>. + (overflow_value): Use math_narrow_eval. + (underflow_value): Likewise. + * sysdeps/i386/fpu/s_nexttoward.c (__nexttoward): Likewise. + * sysdeps/i386/fpu/s_nexttowardf.c (__nexttowardf): Likewise. + * sysdeps/ieee754/dbl-64/e_gamma_r.c (gamma_positive): Likewise. + (__ieee754_gamma_r): Likewise. + * sysdeps/ieee754/dbl-64/gamma_productf.c (__gamma_productf): + Likewise. + * sysdeps/ieee754/dbl-64/k_rem_pio2.c (__kernel_rem_pio2): + Likewise. + * sysdeps/ieee754/dbl-64/lgamma_neg.c (__lgamma_neg): Likewise. + * sysdeps/ieee754/dbl-64/s_erf.c (__erfc): Likewise. + * sysdeps/ieee754/dbl-64/s_llrint.c (__llrint): Likewise. + * sysdeps/ieee754/dbl-64/s_lrint.c (__lrint): Likewise. + * sysdeps/ieee754/flt-32/e_gammaf_r.c (gammaf_positive): Likewise. + (__ieee754_gammaf_r): Likewise. + * sysdeps/ieee754/flt-32/k_rem_pio2f.c (__kernel_rem_pio2f): + Likewise. + * sysdeps/ieee754/flt-32/lgamma_negf.c (__lgamma_negf): Likewise. + * sysdeps/ieee754/flt-32/s_erff.c (__erfcf): Likewise. + * sysdeps/ieee754/flt-32/s_llrintf.c (__llrintf): Likewise. + * sysdeps/ieee754/flt-32/s_lrintf.c (__lrintf): Likewise. + * sysdeps/ieee754/ldbl-128/s_llrintl.c (__llrintl): Do not use + volatile. + * sysdeps/ieee754/ldbl-128/s_lrintl.c (__lrintl): Likewise. + * sysdeps/ieee754/ldbl-128/s_nexttoward.c (__nexttoward): Use + math_narrow_eval. + * sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c (__nexttoward): + Likewise. + * sysdeps/ieee754/ldbl-128ibm/s_nexttowardf.c (__nexttowardf): + Likewise. + * sysdeps/ieee754/ldbl-96/gamma_product.c (__gamma_product): + Likewise. + * sysdeps/ieee754/ldbl-96/s_llrintl.c (__llrintl): Do not use + volatile. + * sysdeps/ieee754/ldbl-96/s_lrintl.c (__lrintl): Likewise. + * sysdeps/ieee754/ldbl-96/s_nexttoward.c (__nexttoward): Use + math_narrow_eval. + * sysdeps/ieee754/ldbl-96/s_nexttowardf.c (__nexttowardf): + Likewise. + * sysdeps/ieee754/ldbl-opt/s_nexttowardfd.c (__nldbl_nexttowardf): + Likewise. + 2015-09-22 H.J. Lu <hongjiu.lu@intel.com> * nptl/Versions: Remove ignored symbols. |