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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-11-08 13:24:28 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-11-22 10:52:27 -0300 |
| commit | bccb0648ea29f89a7b1b64f3e5674d2338e3798e (patch) | |
| tree | 31849761a6d493625977c973db58c50669935fc9 /sysdeps/powerpc | |
| parent | d846f4c12d7636efd5b7cff173456e616a185e24 (diff) | |
| download | glibc-bccb0648ea29f89a7b1b64f3e5674d2338e3798e.tar.gz glibc-bccb0648ea29f89a7b1b64f3e5674d2338e3798e.tar.xz glibc-bccb0648ea29f89a7b1b64f3e5674d2338e3798e.zip | |
math: Use tanf from CORE-MATH
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows better performance to the generic tanf. The code was adapted to glibc style, to use the definition of math_config.h, to remove errno handling, and to use a generic 128 bit routine for ABIs that do not support it natively. Benchtest on x64_64 (Ryzen 9 5900X, gcc 14.2.1), aarch64 (neoverse1, gcc 13.2.1), and powerpc (POWER10, gcc 13.2.1): latency master patched improvement x86_64 82.3961 54.8052 33.49% x86_64v2 82.3415 54.8052 33.44% x86_64v3 69.3661 50.4864 27.22% i686 219.271 45.5396 79.23% aarch64 29.2127 19.1951 34.29% power10 19.5060 16.2760 16.56% reciprocal-throughput master patched improvement x86_64 28.3976 19.7334 30.51% x86_64v2 28.4568 19.7334 30.65% x86_64v3 21.1815 16.1811 23.61% i686 105.016 15.1426 85.58% aarch64 18.1573 10.7681 40.70% power10 8.7207 8.7097 0.13% Signed-off-by: Alexei Sibidanov <sibid@uvic.ca> Signed-off-by: Paul Zimmermann <Paul.Zimmermann@inria.fr> Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: DJ Delorie <dj@redhat.com>
Diffstat (limited to 'sysdeps/powerpc')
| -rw-r--r-- | sysdeps/powerpc/fpu/libm-test-ulps | 4 | ||||
| -rw-r--r-- | sysdeps/powerpc/nofpu/libm-test-ulps | 4 |
2 files changed, 0 insertions, 8 deletions
diff --git a/sysdeps/powerpc/fpu/libm-test-ulps b/sysdeps/powerpc/fpu/libm-test-ulps index 56ca580497..adaa10fb56 100644 --- a/sysdeps/powerpc/fpu/libm-test-ulps +++ b/sysdeps/powerpc/fpu/libm-test-ulps @@ -1737,25 +1737,21 @@ double: 1 float: 1 Function: "tan": -float: 3 float128: 1 ldouble: 2 Function: "tan_downward": double: 1 -float: 3 float128: 1 ldouble: 3 Function: "tan_towardzero": double: 1 -float: 3 float128: 1 ldouble: 2 Function: "tan_upward": double: 1 -float: 3 float128: 1 ldouble: 3 diff --git a/sysdeps/powerpc/nofpu/libm-test-ulps b/sysdeps/powerpc/nofpu/libm-test-ulps index 752d1937c6..2c44e39c2c 100644 --- a/sysdeps/powerpc/nofpu/libm-test-ulps +++ b/sysdeps/powerpc/nofpu/libm-test-ulps @@ -1476,22 +1476,18 @@ double: 1 float: 1 Function: "tan": -float: 1 ldouble: 2 Function: "tan_downward": double: 1 -float: 2 ldouble: 3 Function: "tan_towardzero": double: 1 -float: 1 ldouble: 2 Function: "tan_upward": double: 1 -float: 1 ldouble: 3 Function: "tanh": |