diff options
| author | Pierre Blanchard <pierre.blanchard@arm.com> | 2020-11-05 16:26:36 +0000 |
|---|---|---|
| committer | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2020-11-13 14:43:49 +0000 |
| commit | 00e5afdbaf600cb8d56072685e987800d8678248 (patch) | |
| tree | 312326613eb7e581fdf0e17766d48cf01d40da65 /math/test/ulp.c | |
| parent | fc3fcc91ba7d79b30876d8e7ee68b8442a50da5c (diff) | |
| download | arm-optimized-routines-00e5afdbaf600cb8d56072685e987800d8678248.tar.gz | |
math: add scalar erf
Only tested in round-to-nearest mode. The expected worst case error
is 1.01 ULP near x=1.25. Benchmarked over random x in [-6,6] and
can increase performance by > 2x (> 3.5x for throughput) on big ooo
cores compared to the implementation in glibc 2.28.
Includes data for erfc too, but this patch only adds erf.
Diffstat (limited to 'math/test/ulp.c')
| -rw-r--r-- | math/test/ulp.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/math/test/ulp.c b/math/test/ulp.c index 3701c93..05a5321 100644 --- a/math/test/ulp.c +++ b/math/test/ulp.c @@ -337,6 +337,7 @@ static const struct fun fun[] = { D1 (log) D1 (log2) D2 (pow) + D1 (erf) #if WANT_VMATH F (__s_sinf, __s_sinf, sin, mpfr_sin, 1, 1, f1, 0) F (__s_cosf, __s_cosf, cos, mpfr_cos, 1, 1, f1, 0) |