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| author | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2018-01-30 14:48:22 +0000 |
|---|---|---|
| committer | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2018-02-12 11:33:33 +0000 |
| commit | de800d83059dbedb7d151580f0a3bdc9eaf37340 (patch) | |
| tree | 9c35197ab9d9788c73bd6aa5d7d19eb90979f629 /math | |
| parent | c3d466cba1692708a19c6ff829d0386c83a0c6e5 (diff) | |
| download | glibc-de800d83059dbedb7d151580f0a3bdc9eaf37340.tar.gz | |
Remove slow paths from exp
Remove the __slowexp code, so exp is no longer correctly rounded. The
result is computed to about 70 bits precision so the worst case ulp
error is about 0.500007 in nearest rounding mode.
* manual/probes.texi: Remove slowexp probes.
* math/Makefile: Remove slowexp.
* sysdeps/generic/math_private.h (__slowexp): Remove.
* sysdeps/ieee754/dbl-64/e_exp.c (__ieee754_exp): Remove __slowexp and
document error bounds.
* sysdeps/i386/fpu/slowexp.c: Remove.
* sysdeps/ia64/fpu/slowexp.c: Remove.
* sysdeps/ieee754/dbl-64/slowexp.c: Remove.
* sysdeps/ieee754/dbl-64/uexp.h (err_0): Remove.
* sysdeps/m68k/m680x0/fpu/slowexp.c: Remove.
* sysdeps/powerpc/power4/fpu/Makefile (CPPFLAGS-slowexp.c): Remove.
* sysdeps/x86_64/fpu/multiarch/Makefile: Remove slowexp-fma.
* sysdeps/x86_64/fpu/multiarch/e_exp-avx.c (__slowexp): Remove.
* sysdeps/x86_64/fpu/multiarch/e_exp-fma.c (__slowexp): Remove.
* sysdeps/x86_64/fpu/multiarch/e_exp-fma4.c (__slowexp): Remove.
* sysdeps/x86_64/fpu/multiarch/slowexp-avx.c: Remove.
* sysdeps/x86_64/fpu/multiarch/slowexp-fma.c: Remove.
* sysdeps/x86_64/fpu/multiarch/slowexp-fma4.c: Remove.
Diffstat (limited to 'math')
| -rw-r--r-- | math/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/math/Makefile b/math/Makefile index 8152011c22..8d4f998ce5 100644 --- a/math/Makefile +++ b/math/Makefile @@ -124,7 +124,7 @@ type-ldouble-yes := ldouble # double support type-double-suffix := type-double-routines := branred doasin dosincos mpa mpatan2 \ - mpatan mpexp mplog mpsqrt mptan sincos32 slowexp \ + mpatan mpexp mplog mpsqrt mptan sincos32 \ sincostab k_rem_pio2 # float support |