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| 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/testcases | |
| 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/testcases')
| -rw-r--r-- | math/test/testcases/directed/erf.tst | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/math/test/testcases/directed/erf.tst b/math/test/testcases/directed/erf.tst new file mode 100644 index 0000000..7fa4d18 --- /dev/null +++ b/math/test/testcases/directed/erf.tst @@ -0,0 +1,17 @@ +; erf.tst - Directed test cases for erf +; +; Copyright (c) 2007-2020, Arm Limited. +; SPDX-License-Identifier: MIT + +func=erf op1=7ff80000.00000001 result=7ff80000.00000001 errno=0 +func=erf op1=fff80000.00000001 result=7ff80000.00000001 errno=0 +func=erf op1=7ff00000.00000001 result=7ff80000.00000001 errno=0 status=i +func=erf op1=fff00000.00000001 result=7ff80000.00000001 errno=0 status=i +func=erf op1=7ff00000.00000000 result=3ff00000.00000000 errno=0 +func=erf op1=fff00000.00000000 result=bff00000.00000000 errno=0 +func=erf op1=00000000.00000000 result=00000000.00000000 errno=ERANGE +func=erf op1=80000000.00000000 result=80000000.00000000 errno=ERANGE +func=erf op1=00000000.00000001 result=00000000.00000001 errno=0 status=ux +func=erf op1=80000000.00000001 result=80000000.00000001 errno=0 status=ux +func=erf op1=3ff00000.00000000 result=3feaf767.a741088a.c6d errno=0 +func=erf op1=bff00000.00000000 result=bfeaf767.a741088a.c6d errno=0 |