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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-04-09 16:38:27 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-06-19 12:08:52 -0300 |
| commit | 3297d019e108aa9d16fc5a6a5aee0854f377f289 (patch) | |
| tree | 354fbb1b8a72e34ebabbaee45d2b4cfc46129af4 /sysdeps/ia64/fpu/e_exp10f.c | |
| parent | be668a8d782ab6bf363d4cdd7086295b5eebb8ea (diff) | |
| download | glibc-3297d019e108aa9d16fc5a6a5aee0854f377f289.tar.gz glibc-3297d019e108aa9d16fc5a6a5aee0854f377f289.tar.xz glibc-3297d019e108aa9d16fc5a6a5aee0854f377f289.zip | |
ia64: Use generic exp10f
The generic implementation is slight worse (Itanium(R) Processor 9020):
Before new code:
"exp10f": {
"workload-spec2017.wrf (adapted)": {
"duration": 3.61582e+08,
"iterations": 2.384e+07,
"reciprocal-throughput": 14.8334,
"latency": 15.5006,
"max-throughput": 6.74153e+07,
"min-throughput": 6.45136e+07
}
}
With new code:
"exp10f": {
"workload-spec2017.wrf (adapted)": {
"duration": 3.85549e+08,
"iterations": 2.384e+07,
"reciprocal-throughput": 15.8391,
"latency": 16.5056,
"max-throughput": 6.31348e+07,
"min-throughput": 6.05857e+07
}
}
However it fixes all the issues on both:
math/test-float-exp10
math/test-float32-exp10
(all the issues wrong results for non default rounding modes).
The existing ia64 libm interface uses matherrf and matherrl in addition
to matherr for SVID error handling. However, there is no such error
handling support for exp10f in ia64 libm. So replacing it with the
generic implementation should be fine.
Checked on ia64-linux-gnu.
Diffstat (limited to 'sysdeps/ia64/fpu/e_exp10f.c')
| -rw-r--r-- | sysdeps/ia64/fpu/e_exp10f.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sysdeps/ia64/fpu/e_exp10f.c b/sysdeps/ia64/fpu/e_exp10f.c new file mode 100644 index 0000000000..fc9b65da96 --- /dev/null +++ b/sysdeps/ia64/fpu/e_exp10f.c @@ -0,0 +1,5 @@ +/* IA64 does not provided the finite symbol alias. */ +#include <libm-alias-finite.h> +#undef libm_alias_finite +#define libm_alias_finite(a, b) +#include <sysdeps/ieee754/flt-32/e_exp10f.c> |