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math: Use log1pf from CORE-MATH
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows slight better performance to the generic log1pf. The code was adapted to glibc style and to use the definition of math_config.h (to handle errno, overflow, and underflow). Benchtest on x64_64 (Ryzen 9 5900X, gcc 14.2.1), aarch64 (M1, gcc 13.2.1), and powerpc (POWER10, gcc 13.2.1): Latency master patched improvement x86_64 71.8142 38.9668 45.74% x86_64v2 71.9094 39.1321 45.58% x86_64v3 60.1000 32.4016 46.09% i686 147.105 104.258 29.13% aarch64 26.4439 14.0050 47.04% power10 19.4874 9.4146 51.69% powerpc 17.6145 8.00736 54.54% reciprocal-throughput master patched improvement x86_64 19.7604 12.7254 35.60% x86_64v2 19.0039 11.9455 37.14% x86_64v3 16.8559 11.9317 29.21% i686 82.3426 73.9718 10.17% aarch64 14.4665 7.9614 44.97% power10 11.9974 8.4117 29.89% powerpc 7.15222 6.0914 14.83% 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>
This commit is contained in:
Adhemerval Zanella
parent
c369580814
commit
8ae9e51376
@ -260,3 +260,7 @@ sysdeps/ieee754/flt-32/s_log2p1f.c
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(file src/binary32/log2p1/log2p1f.c in CORE-MATH)
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- The code was adapted to use glibc code style and internal
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functions to handle errno, overflow, and underflow.
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sysdeps/ieee754/flt-32/s_log1pf.c
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(file src/binary32/log1p/log1pf.c in CORE-MATH)
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- The code was adapted to use glibc code style and internal
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functions to handle errno, overflow, and underflow.
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@ -1366,7 +1366,6 @@ ldouble: 4
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Function: "log1p":
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double: 1
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float: 1
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ldouble: 3
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Function: "log1p_advsimd":
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@ -1375,7 +1374,6 @@ float: 1
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Function: "log1p_downward":
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double: 1
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float: 2
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ldouble: 3
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Function: "log1p_sve":
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@ -1384,12 +1382,10 @@ float: 1
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Function: "log1p_towardzero":
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double: 2
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float: 2
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ldouble: 3
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Function: "log1p_upward":
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double: 2
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float: 2
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ldouble: 2
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Function: "log2":
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@ -1459,22 +1455,18 @@ ldouble: 1
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Function: "logp1":
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double: 1
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float: 1
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ldouble: 3
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Function: "logp1_downward":
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double: 1
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float: 2
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ldouble: 3
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Function: "logp1_towardzero":
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double: 2
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float: 2
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ldouble: 3
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Function: "logp1_upward":
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double: 2
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float: 2
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ldouble: 2
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Function: "pow":
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@ -1202,22 +1202,18 @@ ldouble: 3
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Function: "log1p":
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double: 1
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float: 1
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ldouble: 3
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Function: "log1p_downward":
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double: 2
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float: 2
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ldouble: 3
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Function: "log1p_towardzero":
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double: 2
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float: 2
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ldouble: 3
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Function: "log1p_upward":
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double: 2
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float: 2
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ldouble: 2
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Function: "log2":
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@ -1267,22 +1263,18 @@ ldouble: 1
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Function: "logp1":
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double: 1
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float: 1
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ldouble: 3
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Function: "logp1_downward":
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double: 2
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float: 2
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ldouble: 3
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Function: "logp1_towardzero":
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double: 2
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float: 2
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ldouble: 3
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Function: "logp1_upward":
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double: 2
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float: 2
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ldouble: 2
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Function: "pow":
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@ -981,19 +981,15 @@ float: 3
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Function: "log1p":
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double: 1
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float: 1
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Function: "log1p_downward":
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double: 1
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float: 2
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Function: "log1p_towardzero":
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double: 2
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float: 2
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Function: "log1p_upward":
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double: 2
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float: 2
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Function: "log2":
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double: 2
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@ -1029,19 +1025,15 @@ float: 1
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Function: "logp1":
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double: 1
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float: 1
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Function: "logp1_downward":
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double: 1
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float: 2
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Function: "logp1_towardzero":
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double: 2
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float: 2
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Function: "logp1_upward":
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double: 2
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float: 2
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Function: "pow":
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double: 1
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@ -238,7 +238,6 @@ float: 2
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Function: "log1p":
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double: 1
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float: 1
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Function: "log2":
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double: 2
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@ -974,19 +974,15 @@ float: 3
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Function: "log1p":
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double: 1
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float: 1
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Function: "log1p_downward":
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double: 2
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float: 2
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Function: "log1p_towardzero":
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double: 2
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float: 2
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Function: "log1p_upward":
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double: 2
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float: 2
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Function: "log2":
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double: 2
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@ -1028,19 +1024,15 @@ float: 2
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Function: "logp1":
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double: 1
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float: 1
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Function: "logp1_downward":
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double: 2
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float: 2
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Function: "logp1_towardzero":
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double: 2
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float: 2
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Function: "logp1_upward":
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double: 2
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float: 2
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Function: "pow":
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double: 1
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@ -919,19 +919,15 @@ float: 2
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Function: "log1p":
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double: 1
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float: 1
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Function: "log1p_downward":
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double: 2
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float: 2
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Function: "log1p_towardzero":
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double: 2
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float: 2
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Function: "log1p_upward":
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double: 2
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float: 2
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Function: "log2":
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double: 2
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@ -948,19 +944,15 @@ double: 3
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Function: "logp1":
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double: 1
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float: 1
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Function: "logp1_downward":
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double: 2
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float: 2
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Function: "logp1_towardzero":
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double: 2
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float: 2
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Function: "logp1_upward":
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double: 2
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float: 2
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Function: "pow":
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double: 1
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@ -920,19 +920,15 @@ float: 2
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Function: "log1p":
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double: 1
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float: 1
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Function: "log1p_downward":
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double: 2
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float: 2
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Function: "log1p_towardzero":
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double: 2
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float: 2
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Function: "log1p_upward":
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double: 2
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float: 2
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Function: "log2":
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double: 2
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@ -962,19 +958,15 @@ float: 2
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Function: "logp1":
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double: 1
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float: 1
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Function: "logp1_downward":
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double: 2
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float: 2
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Function: "logp1_towardzero":
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double: 2
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float: 2
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Function: "logp1_upward":
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double: 2
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float: 2
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Function: "pow":
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double: 1
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@ -997,19 +997,15 @@ float: 3
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Function: "log1p":
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double: 1
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float: 1
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Function: "log1p_downward":
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double: 2
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float: 2
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Function: "log1p_towardzero":
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double: 2
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float: 2
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Function: "log1p_upward":
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double: 2
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float: 2
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Function: "log2":
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double: 2
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@ -1051,19 +1047,15 @@ float: 2
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Function: "logp1":
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double: 1
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float: 1
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Function: "logp1_downward":
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double: 2
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float: 2
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Function: "logp1_towardzero":
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double: 2
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float: 2
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Function: "logp1_upward":
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double: 2
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float: 2
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Function: "pow":
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double: 1
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@ -1443,19 +1443,16 @@ ldouble: 2
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Function: "log1p_downward":
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double: 1
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float: 1
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float128: 3
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ldouble: 4
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Function: "log1p_towardzero":
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double: 1
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float: 1
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float128: 3
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ldouble: 4
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Function: "log1p_upward":
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double: 1
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float: 1
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float128: 2
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ldouble: 3
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@ -1524,19 +1521,16 @@ ldouble: 2
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Function: "logp1_downward":
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double: 1
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float: 1
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float128: 3
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ldouble: 4
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Function: "logp1_towardzero":
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double: 1
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float: 1
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float128: 3
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ldouble: 4
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Function: "logp1_upward":
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double: 1
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float: 1
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float128: 2
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ldouble: 3
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@ -1,66 +0,0 @@
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/*
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* Public domain.
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*/
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#include <machine/asm.h>
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#include <i386-math-asm.h>
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RCSID("$NetBSD: s_log1pf.S,v 1.4 1995/05/09 00:13:05 jtc Exp $")
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.section .rodata
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.align ALIGNARG(4)
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/* The fyl2xp1 can only be used for values in
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-1 + sqrt(2) / 2 <= x <= 1 - sqrt(2) / 2
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0.29 is a safe value.
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*/
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limit: .float 0.29
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one: .float 1.0
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DEFINE_FLT_MIN
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#ifdef PIC
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# define MO(op) op##@GOTOFF(%edx)
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#else
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# define MO(op) op
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#endif
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/*
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* Use the fyl2xp1 function when the argument is in the range -0.29 to 0.29,
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* otherwise fyl2x with the needed extra computation.
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*/
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.text
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ENTRY(__log1pf)
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fldln2
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flds 4(%esp)
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#ifdef PIC
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LOAD_PIC_REG (dx)
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#endif
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fxam
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fnstsw
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fld %st
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sahf
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jc 3f // in case x is NaN or ±Inf
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4: fabs
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fcomps MO(limit)
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fnstsw
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sahf
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jc 2f
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fadds MO(one)
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fyl2x
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ret
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2: fyl2xp1
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FLT_CHECK_FORCE_UFLOW_NONNAN
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ret
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3: jp 4b // in case x is ±Inf
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fstp %st(1)
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fstp %st(1)
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ret
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END (__log1pf)
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@ -1446,19 +1446,16 @@ ldouble: 2
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Function: "log1p_downward":
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double: 1
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float: 1
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float128: 3
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ldouble: 4
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Function: "log1p_towardzero":
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double: 1
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float: 1
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float128: 3
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ldouble: 4
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Function: "log1p_upward":
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double: 1
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float: 1
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float128: 2
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ldouble: 3
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@ -1527,19 +1524,16 @@ ldouble: 2
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Function: "logp1_downward":
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double: 1
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float: 1
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float128: 3
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ldouble: 4
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Function: "logp1_towardzero":
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double: 1
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float: 1
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float128: 3
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ldouble: 4
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Function: "logp1_upward":
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double: 1
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float: 1
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float128: 2
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ldouble: 3
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@ -1,116 +1,181 @@
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/* s_log1pf.c -- float version of s_log1p.c.
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*/
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/* Correctly-rounded biased argument natural logarithm function for binary32
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value.
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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Copyright (c) 2023, 2024 Alexei Sibidanov.
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This file is part of the CORE-MATH project
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project (file src/binary32/log1p/log1pf.c revision bc385c2).
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Permission is hereby granted, free of charge, to any person obtaining a copy
|
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of this software and associated documentation files (the "Software"), to deal
|
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in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
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copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
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SOFTWARE.
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*/
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#include <float.h>
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#include <math.h>
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#include <math-barriers.h>
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#include <math_private.h>
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#include <math-underflow.h>
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#include <libc-diag.h>
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#include <stdint.h>
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#include <errno.h>
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#include <libm-alias-float.h>
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#include "math_config.h"
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static const float
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ln2_hi = 6.9313812256e-01, /* 0x3f317180 */
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ln2_lo = 9.0580006145e-06, /* 0x3717f7d1 */
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two25 = 3.355443200e+07, /* 0x4c000000 */
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Lp1 = 6.6666668653e-01, /* 3F2AAAAB */
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Lp2 = 4.0000000596e-01, /* 3ECCCCCD */
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Lp3 = 2.8571429849e-01, /* 3E924925 */
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Lp4 = 2.2222198546e-01, /* 3E638E29 */
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Lp5 = 1.8183572590e-01, /* 3E3A3325 */
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Lp6 = 1.5313838422e-01, /* 3E1CD04F */
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Lp7 = 1.4798198640e-01; /* 3E178897 */
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static const float zero = 0.0;
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static __attribute__ ((noinline)) float
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as_special (float x)
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{
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uint32_t t = asuint (x);
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if (t == 0xbf800000u)
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return __math_divzerof (1);
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if (t == 0x7f800000u)
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return x; /* +inf */
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uint32_t ax = t << 1;
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if (ax > 0xff000000u)
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return x + x; /* nan */
|
||||
return __math_invalidf (0.0f);
|
||||
}
|
||||
|
||||
float
|
||||
__log1pf(float x)
|
||||
__log1pf (float x)
|
||||
{
|
||||
float hfsq,f,c,s,z,R,u;
|
||||
int32_t k,hx,hu,ax;
|
||||
static const double x0[] =
|
||||
{
|
||||
0x1.f81f82p-1, 0x1.e9131acp-1, 0x1.dae6077p-1, 0x1.cd85689p-1,
|
||||
0x1.c0e0704p-1, 0x1.b4e81b5p-1, 0x1.a98ef6p-1, 0x1.9ec8e95p-1,
|
||||
0x1.948b0fdp-1, 0x1.8acb90fp-1, 0x1.8181818p-1, 0x1.78a4c81p-1,
|
||||
0x1.702e05cp-1, 0x1.6816817p-1, 0x1.605816p-1, 0x1.58ed231p-1,
|
||||
0x1.51d07ebp-1, 0x1.4afd6ap-1, 0x1.446f865p-1, 0x1.3e22cbdp-1,
|
||||
0x1.3813814p-1, 0x1.323e34ap-1, 0x1.2c9fb4ep-1, 0x1.27350b9p-1,
|
||||
0x1.21fb781p-1, 0x1.1cf06aep-1, 0x1.1811812p-1, 0x1.135c811p-1,
|
||||
0x1.0ecf56cp-1, 0x1.0a6810ap-1, 0x1.0624dd3p-1, 0x1.0204081p-1
|
||||
};
|
||||
static const double lixb[] =
|
||||
{
|
||||
0x1.fc0a8909b4218p-7, 0x1.77458f51aac89p-5, 0x1.341d793afb997p-4,
|
||||
0x1.a926d3a5ebd2ap-4, 0x1.0d77e7a8a823dp-3, 0x1.44d2b6c557102p-3,
|
||||
0x1.7ab89040accecp-3, 0x1.af3c94ecab3d6p-3, 0x1.e27076d54e6c9p-3,
|
||||
0x1.0a324e3888ad5p-2, 0x1.22941fc0c7357p-2, 0x1.3a64c56ae3fdbp-2,
|
||||
0x1.51aad874af21fp-2, 0x1.686c81d300eap-2, 0x1.7eaf83c7fa9b5p-2,
|
||||
0x1.947941aa610ecp-2, 0x1.a9cec9a3f023bp-2, 0x1.beb4d9ea4156ep-2,
|
||||
0x1.d32fe7f35e5c7p-2, 0x1.e7442617b817ap-2, 0x1.faf588dd5ed1p-2,
|
||||
0x1.0723e5c635c39p-1, 0x1.109f39d53c99p-1, 0x1.19ee6b38a4668p-1,
|
||||
0x1.23130d7f93c3bp-1, 0x1.2c0e9ec9b0b85p-1, 0x1.34e289cb35eccp-1,
|
||||
0x1.3d9026ad3d3f3p-1, 0x1.4618bc1eadbbbp-1, 0x1.4e7d8127dd8a9p-1,
|
||||
0x1.56bf9d5967092p-1, 0x1.5ee02a926936ep-1
|
||||
};
|
||||
static const double lix[] =
|
||||
{
|
||||
0x1.fc0a890fc03e4p-7, 0x1.77458f532dcfcp-5, 0x1.341d793bbd1d1p-4,
|
||||
0x1.a926d3a6ad563p-4, 0x1.0d77e7a908e59p-3, 0x1.44d2b6c5b7d1ep-3,
|
||||
0x1.7ab890410d909p-3, 0x1.af3c94ed0bff3p-3, 0x1.e27076d5af2e6p-3,
|
||||
0x1.0a324e38b90e3p-2, 0x1.22941fc0f7966p-2, 0x1.3a64c56b145eap-2,
|
||||
0x1.51aad874df82dp-2, 0x1.686c81d3314afp-2, 0x1.7eaf83c82afc3p-2,
|
||||
0x1.947941aa916fbp-2, 0x1.a9cec9a42084ap-2, 0x1.beb4d9ea71b7cp-2,
|
||||
0x1.d32fe7f38ebd5p-2, 0x1.e7442617e8788p-2, 0x1.faf588dd8f31fp-2,
|
||||
0x1.0723e5c64df4p-1, 0x1.109f39d554c97p-1, 0x1.19ee6b38bc96fp-1,
|
||||
0x1.23130d7fabf43p-1, 0x1.2c0e9ec9c8e8cp-1, 0x1.34e289cb4e1d3p-1,
|
||||
0x1.3d9026ad556fbp-1, 0x1.4618bc1ec5ec2p-1, 0x1.4e7d8127f5bb1p-1,
|
||||
0x1.56bf9d597f399p-1, 0x1.5ee02a9281675p-1
|
||||
};
|
||||
static const double b[] =
|
||||
{
|
||||
0x1p+0,
|
||||
-0x1p-1,
|
||||
0x1.5555555556f6bp-2,
|
||||
-0x1.00000000029b9p-2,
|
||||
0x1.9999988d176e4p-3,
|
||||
-0x1.55555418889a7p-3,
|
||||
0x1.24adeca50e2bcp-3,
|
||||
-0x1.001ba33bf57cfp-3
|
||||
};
|
||||
|
||||
GET_FLOAT_WORD(hx,x);
|
||||
ax = hx&0x7fffffff;
|
||||
|
||||
k = 1;
|
||||
if (hx < 0x3ed413d7) { /* x < 0.41422 */
|
||||
if(ax>=0x3f800000) { /* x <= -1.0 */
|
||||
if(x==(float)-1.0) return -two25/zero; /* log1p(-1)=-inf */
|
||||
else return (x-x)/(x-x); /* log1p(x<-1)=NaN */
|
||||
}
|
||||
if(ax<0x31000000) { /* |x| < 2**-29 */
|
||||
math_force_eval(two25+x); /* raise inexact */
|
||||
if (ax<0x24800000) /* |x| < 2**-54 */
|
||||
{
|
||||
math_check_force_underflow (x);
|
||||
return x;
|
||||
}
|
||||
else
|
||||
return x - x*x*(float)0.5;
|
||||
}
|
||||
if(hx>0||hx<=((int32_t)0xbe95f61f)) {
|
||||
k=0;f=x;hu=1;} /* -0.2929<x<0.41422 */
|
||||
double z = x;
|
||||
uint32_t ux = asuint (x);
|
||||
uint32_t ax = ux & (~0u >> 1);
|
||||
if (__glibc_likely (ax < 0x3c880000))
|
||||
{
|
||||
if (__glibc_unlikely (ax < 0x33000000))
|
||||
{
|
||||
if (!ax)
|
||||
return x;
|
||||
return fmaf (x, -x, x);
|
||||
}
|
||||
if (hx >= 0x7f800000) return x+x;
|
||||
if(k!=0) {
|
||||
if(hx<0x5a000000) {
|
||||
u = (float)1.0+x;
|
||||
GET_FLOAT_WORD(hu,u);
|
||||
k = (hu>>23)-127;
|
||||
/* correction term */
|
||||
c = (k>0)? (float)1.0-(u-x):x-(u-(float)1.0);
|
||||
c /= u;
|
||||
} else {
|
||||
u = x;
|
||||
GET_FLOAT_WORD(hu,u);
|
||||
k = (hu>>23)-127;
|
||||
c = 0;
|
||||
double z2 = z * z, z4 = z2 * z2;
|
||||
double f = z2
|
||||
* ((b[1] + z * b[2]) + z2 * (b[3] + z * b[4])
|
||||
+ z4 * ((b[5] + z * b[6]) + z2 * b[7]));
|
||||
double r = z + f;
|
||||
if (__glibc_unlikely ((asuint64 (r) & 0xfffffffll) == 0))
|
||||
r += 0x1p14 * (f + (z - r));
|
||||
return r;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (__glibc_unlikely (ux >= 0xbf800000u || ax >= 0x7f800000))
|
||||
return as_special (x);
|
||||
uint64_t tp = asuint64 (z + 1);
|
||||
int e = tp >> 52;
|
||||
uint64_t m52 = tp & (~(uint64_t) 0 >> 12);
|
||||
unsigned int j = (tp >> (52 - 5)) & 31;
|
||||
e -= 0x3ff;
|
||||
double xd = asdouble (m52 | ((uint64_t) 0x3ff << 52));
|
||||
z = xd * x0[j] - 1;
|
||||
static const double c[] =
|
||||
{
|
||||
-0x1.3902c33434e7fp-43, 0x1.ffffffe1cbed5p-1, -0x1.ffffff7d1b014p-2,
|
||||
0x1.5564e0ed3613ap-2, -0x1.0012232a00d4ap-2
|
||||
};
|
||||
const double ln2 = 0x1.62e42fefa39efp-1;
|
||||
double z2 = z * z,
|
||||
r = (ln2 * e + lixb[j])
|
||||
+ z * ((c[1] + z * c[2]) + z2 * (c[3] + z * c[4]));
|
||||
float ub = r;
|
||||
float lb = r + 2.2e-11;
|
||||
if (__glibc_unlikely (ub != lb))
|
||||
{
|
||||
double z4 = z2 * z2,
|
||||
f = z
|
||||
* ((b[0] + z * b[1]) + z2 * (b[2] + z * b[3])
|
||||
+ z4 * ((b[4] + z * b[5]) + z2 * (b[6] + z * b[7])));
|
||||
const double ln2l = 0x1.7f7d1cf79abcap-20, ln2h = 0x1.62e4p-1;
|
||||
double Lh = ln2h * e;
|
||||
double Ll = ln2l * e;
|
||||
double rl = f + Ll + lix[j];
|
||||
double tr = rl + Lh;
|
||||
if (__glibc_unlikely ((asuint64 (tr) & 0xfffffffll) == 0))
|
||||
{
|
||||
if (x == -0x1.247ab0p-6)
|
||||
return -0x1.271f0ep-6f - 0x1p-31f;
|
||||
if (x == -0x1.3a415ep-5)
|
||||
return -0x1.407112p-5f + 0x1p-30f;
|
||||
if (x == 0x1.fb035ap-2)
|
||||
return 0x1.9bddc2p-2f + 0x1p-27f;
|
||||
tr += 64 * (rl + (Lh - tr));
|
||||
}
|
||||
hu &= 0x007fffff;
|
||||
if(hu<0x3504f7) {
|
||||
SET_FLOAT_WORD(u,hu|0x3f800000);/* normalize u */
|
||||
} else {
|
||||
k += 1;
|
||||
SET_FLOAT_WORD(u,hu|0x3f000000); /* normalize u/2 */
|
||||
hu = (0x00800000-hu)>>2;
|
||||
else if (rl + (Lh - tr) == 0.0)
|
||||
{
|
||||
if (x == 0x1.b7fd86p-4)
|
||||
return 0x1.a1ece2p-4f + 0x1p-29f;
|
||||
if (x == -0x1.3a415ep-5)
|
||||
return -0x1.407112p-5f + 0x1p-30f;
|
||||
if (x == 0x1.43c7e2p-6)
|
||||
return 0x1.409f80p-6f + 0x1p-31f;
|
||||
}
|
||||
f = u-(float)1.0;
|
||||
ub = tr;
|
||||
}
|
||||
hfsq=(float)0.5*f*f;
|
||||
if(hu==0) { /* |f| < 2**-20 */
|
||||
if(f==zero) {
|
||||
if(k==0) return zero;
|
||||
else {c += k*ln2_lo; return k*ln2_hi+c;}
|
||||
}
|
||||
R = hfsq*(1.0f-0.66666666666666666f*f);
|
||||
if(k==0) return f-R; else
|
||||
return k*ln2_hi-((R-(k*ln2_lo+c))-f);
|
||||
}
|
||||
s = f/((float)2.0+f);
|
||||
z = s*s;
|
||||
R = z*(Lp1+z*(Lp2+z*(Lp3+z*(Lp4+z*(Lp5+z*(Lp6+z*Lp7))))));
|
||||
if (k == 0)
|
||||
return f - (hfsq - s * (hfsq + R));
|
||||
else
|
||||
{
|
||||
/* With GCC 7 when compiling with -Os the compiler warns
|
||||
that c might be used uninitialized. This can't be true
|
||||
because k must be 0 for c to be uninitialized and we
|
||||
handled that computation earlier without using c. */
|
||||
DIAG_PUSH_NEEDS_COMMENT;
|
||||
DIAG_IGNORE_Os_NEEDS_COMMENT (7, "-Wmaybe-uninitialized");
|
||||
return k * ln2_hi - ((hfsq - (s * (hfsq + R)
|
||||
+ (k * ln2_lo + c))) - f);
|
||||
DIAG_POP_NEEDS_COMMENT;
|
||||
}
|
||||
return ub;
|
||||
}
|
||||
}
|
||||
libm_alias_float (__log1p, log1p)
|
||||
strong_alias (__log1pf, __logp1f)
|
||||
libm_alias_float (__logp1, logp1)
|
||||
|
||||
1
sysdeps/ieee754/flt-32/w_log1pf.c
Normal file
1
sysdeps/ieee754/flt-32/w_log1pf.c
Normal file
@ -0,0 +1 @@
|
||||
/* Not needed. */
|
||||
@ -1215,22 +1215,18 @@ ldouble: 4
|
||||
|
||||
Function: "log1p":
|
||||
double: 1
|
||||
float: 1
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_downward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "log2":
|
||||
@ -1278,22 +1274,18 @@ ldouble: 2
|
||||
|
||||
Function: "logp1":
|
||||
double: 1
|
||||
float: 1
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_downward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "pow":
|
||||
|
||||
@ -131,12 +131,6 @@ Function: "log10":
|
||||
double: 1
|
||||
float: 2
|
||||
|
||||
Function: "log1p":
|
||||
float: 1
|
||||
|
||||
Function: "logp1":
|
||||
float: 1
|
||||
|
||||
Function: "sincos":
|
||||
double: 1
|
||||
float: 1
|
||||
|
||||
20
sysdeps/m68k/m680x0/fpu/w_log1pf.c
Normal file
20
sysdeps/m68k/m680x0/fpu/w_log1pf.c
Normal file
@ -0,0 +1,20 @@
|
||||
/* Wrapper for __log1p that handles setting errno.
|
||||
Copyright (C) 2015-2024 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<https://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <math-type-macros-float.h>
|
||||
#include <w_log1p_template.c>
|
||||
@ -224,7 +224,6 @@ float: 2
|
||||
|
||||
Function: "log1p":
|
||||
double: 1
|
||||
float: 1
|
||||
|
||||
Function: "log2":
|
||||
double: 2
|
||||
@ -232,7 +231,6 @@ float: 1
|
||||
|
||||
Function: "logp1":
|
||||
double: 1
|
||||
float: 1
|
||||
|
||||
Function: "pow":
|
||||
float: 1
|
||||
|
||||
@ -971,19 +971,15 @@ float: 3
|
||||
|
||||
Function: "log1p":
|
||||
double: 1
|
||||
float: 1
|
||||
|
||||
Function: "log1p_downward":
|
||||
double: 2
|
||||
float: 2
|
||||
|
||||
Function: "log1p_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
|
||||
Function: "log1p_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
|
||||
Function: "log2":
|
||||
double: 2
|
||||
@ -1029,19 +1025,15 @@ float: 2
|
||||
|
||||
Function: "logp1":
|
||||
double: 1
|
||||
float: 1
|
||||
|
||||
Function: "logp1_downward":
|
||||
double: 2
|
||||
float: 2
|
||||
|
||||
Function: "logp1_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
|
||||
Function: "logp1_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
|
||||
Function: "pow":
|
||||
double: 1
|
||||
|
||||
@ -1220,22 +1220,18 @@ ldouble: 4
|
||||
|
||||
Function: "log1p":
|
||||
double: 1
|
||||
float: 1
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_downward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "log2":
|
||||
@ -1289,22 +1285,18 @@ ldouble: 1
|
||||
|
||||
Function: "logp1":
|
||||
double: 1
|
||||
float: 1
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_downward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "pow":
|
||||
|
||||
@ -230,7 +230,6 @@ float: 2
|
||||
|
||||
Function: "log1p":
|
||||
double: 1
|
||||
float: 1
|
||||
|
||||
Function: "log2":
|
||||
double: 2
|
||||
@ -238,7 +237,6 @@ float: 1
|
||||
|
||||
Function: "logp1":
|
||||
double: 1
|
||||
float: 1
|
||||
|
||||
Function: "pow":
|
||||
double: 1
|
||||
|
||||
@ -923,19 +923,15 @@ float: 2
|
||||
|
||||
Function: "log1p":
|
||||
double: 1
|
||||
float: 1
|
||||
|
||||
Function: "log1p_downward":
|
||||
double: 2
|
||||
float: 2
|
||||
|
||||
Function: "log1p_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
|
||||
Function: "log1p_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
|
||||
Function: "log2":
|
||||
float: 1
|
||||
@ -951,19 +947,15 @@ double: 1
|
||||
|
||||
Function: "logp1":
|
||||
double: 1
|
||||
float: 1
|
||||
|
||||
Function: "logp1_downward":
|
||||
double: 2
|
||||
float: 2
|
||||
|
||||
Function: "logp1_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
|
||||
Function: "logp1_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
|
||||
Function: "pow":
|
||||
double: 1
|
||||
|
||||
@ -1521,25 +1521,21 @@ ldouble: 6
|
||||
|
||||
Function: "log1p":
|
||||
double: 1
|
||||
float: 1
|
||||
float128: 3
|
||||
ldouble: 2
|
||||
|
||||
Function: "log1p_downward":
|
||||
double: 1
|
||||
float: 2
|
||||
float128: 3
|
||||
ldouble: 2
|
||||
|
||||
Function: "log1p_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
float128: 3
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
float128: 2
|
||||
ldouble: 3
|
||||
|
||||
@ -1605,25 +1601,21 @@ ldouble: 1
|
||||
|
||||
Function: "logp1":
|
||||
double: 1
|
||||
float: 1
|
||||
float128: 3
|
||||
ldouble: 2
|
||||
|
||||
Function: "logp1_downward":
|
||||
double: 1
|
||||
float: 2
|
||||
float128: 3
|
||||
ldouble: 2
|
||||
|
||||
Function: "logp1_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
float128: 3
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
float128: 2
|
||||
ldouble: 3
|
||||
|
||||
|
||||
@ -1277,22 +1277,18 @@ ldouble: 6
|
||||
|
||||
Function: "log1p":
|
||||
double: 1
|
||||
float: 1
|
||||
ldouble: 2
|
||||
|
||||
Function: "log1p_downward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "log1p_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "log1p_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "log2":
|
||||
@ -1346,22 +1342,18 @@ ldouble: 1
|
||||
|
||||
Function: "logp1":
|
||||
double: 1
|
||||
float: 1
|
||||
ldouble: 2
|
||||
|
||||
Function: "logp1_downward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "logp1_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "logp1_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "mul_downward_ldouble":
|
||||
|
||||
@ -1172,22 +1172,18 @@ ldouble: 3
|
||||
|
||||
Function: "log1p":
|
||||
double: 1
|
||||
float: 1
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_downward":
|
||||
double: 1
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "log2":
|
||||
@ -1223,22 +1219,18 @@ ldouble: 1
|
||||
|
||||
Function: "logp1":
|
||||
double: 1
|
||||
float: 1
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_downward":
|
||||
double: 1
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "pow":
|
||||
|
||||
@ -1215,22 +1215,18 @@ ldouble: 4
|
||||
|
||||
Function: "log1p":
|
||||
double: 1
|
||||
float: 1
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_downward":
|
||||
double: 1
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "log2":
|
||||
@ -1278,22 +1274,18 @@ ldouble: 2
|
||||
|
||||
Function: "logp1":
|
||||
double: 1
|
||||
float: 1
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_downward":
|
||||
double: 1
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "pow":
|
||||
|
||||
@ -1216,22 +1216,18 @@ ldouble: 4
|
||||
|
||||
Function: "log1p":
|
||||
double: 1
|
||||
float: 1
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_downward":
|
||||
double: 1
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "log2":
|
||||
@ -1276,22 +1272,18 @@ ldouble: 1
|
||||
|
||||
Function: "logp1":
|
||||
double: 1
|
||||
float: 1
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_downward":
|
||||
double: 1
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "pow":
|
||||
|
||||
@ -460,11 +460,9 @@ float: 1
|
||||
|
||||
Function: "log1p":
|
||||
double: 1
|
||||
float: 1
|
||||
|
||||
Function: "log1p_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
|
||||
Function: "log2":
|
||||
double: 2
|
||||
@ -475,11 +473,9 @@ double: 2
|
||||
|
||||
Function: "logp1":
|
||||
double: 1
|
||||
float: 1
|
||||
|
||||
Function: "logp1_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
|
||||
Function: "pow":
|
||||
double: 1
|
||||
|
||||
@ -1220,22 +1220,18 @@ ldouble: 4
|
||||
|
||||
Function: "log1p":
|
||||
double: 1
|
||||
float: 1
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_downward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "log1p_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "log2":
|
||||
@ -1289,22 +1285,18 @@ ldouble: 1
|
||||
|
||||
Function: "logp1":
|
||||
double: 1
|
||||
float: 1
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_downward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 3
|
||||
|
||||
Function: "logp1_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
ldouble: 2
|
||||
|
||||
Function: "pow":
|
||||
|
||||
@ -1822,25 +1822,21 @@ ldouble: 6
|
||||
|
||||
Function: "log1p":
|
||||
double: 1
|
||||
float: 1
|
||||
float128: 3
|
||||
ldouble: 2
|
||||
|
||||
Function: "log1p_downward":
|
||||
double: 2
|
||||
float: 2
|
||||
float128: 3
|
||||
ldouble: 4
|
||||
|
||||
Function: "log1p_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
float128: 3
|
||||
ldouble: 4
|
||||
|
||||
Function: "log1p_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
float128: 2
|
||||
ldouble: 3
|
||||
|
||||
@ -1966,25 +1962,21 @@ float: 3
|
||||
|
||||
Function: "logp1":
|
||||
double: 1
|
||||
float: 1
|
||||
float128: 3
|
||||
ldouble: 2
|
||||
|
||||
Function: "logp1_downward":
|
||||
double: 2
|
||||
float: 2
|
||||
float128: 3
|
||||
ldouble: 4
|
||||
|
||||
Function: "logp1_towardzero":
|
||||
double: 2
|
||||
float: 2
|
||||
float128: 3
|
||||
ldouble: 4
|
||||
|
||||
Function: "logp1_upward":
|
||||
double: 2
|
||||
float: 2
|
||||
float128: 2
|
||||
ldouble: 3
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user