mirror of
https://sourceware.org/git/glibc.git
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392b3f0971
The CORE-MATH implementation is correctly rounded (for any rounding mode). This can be checked by exhaustive tests in a few minutes since there are less than 2^32 values to check against for example GNU MPFR. This patch also adds some bench values for tgammaf. Tested on x86_64 and x86 (cfarm26). With the initial GNU libc code it gave on an Intel(R) Core(TM) i7-8700: "tgammaf": { "": { "duration": 3.50188e+09, "iterations": 2e+07, "max": 602.891, "min": 65.1415, "mean": 175.094 } } With the new code: "tgammaf": { "": { "duration": 3.30825e+09, "iterations": 5e+07, "max": 211.592, "min": 32.0325, "mean": 66.1649 } } With the initial GNU libc code it gave on cfarm26 (i686): "tgammaf": { "": { "duration": 3.70505e+09, "iterations": 6e+06, "max": 2420.23, "min": 243.154, "mean": 617.509 } } With the new code: "tgammaf": { "": { "duration": 3.24497e+09, "iterations": 1.8e+07, "max": 1238.15, "min": 101.155, "mean": 180.276 } } Signed-off-by: Alexei Sibidanov <sibid@uvic.ca> Signed-off-by: Paul Zimmermann <Paul.Zimmermann@inria.fr> Changes in v2: - include <math.h> (fix the linknamespace failures) - restored original benchtests/strcoll-inputs/filelist#en_US.UTF-8 file - restored original wrapper code (math/w_tgammaf_compat.c), except for the dealing with the sign - removed the tgammaf/float entries in all libm-test-ulps files - address other comments from Joseph Myers (https://sourceware.org/pipermail/libc-alpha/2024-July/158736.html) Changes in v3: - pass NULL argument for signgam from w_tgammaf_compat.c - use of math_narrow_eval - added more comments Changes in v4: - initialize local_signgam to 0 in math/w_tgamma_template.c - replace sysdeps/ieee754/dbl-64/gamma_productf.c by dummy file Changes in v5: - do not mention local_signgam any more in math/w_tgammaf_compat.c - initialize local_signgam to 1 instead of 0 in w_tgamma_template.c and added comment Changes in v6: - pass NULL as 2nd argument of __ieee754_gammaf_r in w_tgammaf_compat.c, and check for NULL in e_gammaf_r.c Changes in v7: - added Signed-off-by line for Alexei Sibidanov (author of the code) Changes in v8: - added Signed-off-by line for Paul Zimmermann (submitted of the patch) Changes in v9: - address comments from review by Adhemerval Zanella Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
564 lines
7.1 KiB
Plaintext
564 lines
7.1 KiB
Plaintext
# Begin of automatic generation
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# Maximal error of functions:
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Function: "acos":
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float: 1
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Function: "acos_towardzero":
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double: 1
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float: 1
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Function: "acosh":
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double: 2
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float: 2
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Function: "acosh_towardzero":
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double: 2
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float: 2
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Function: "asin":
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float: 1
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Function: "asin_towardzero":
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double: 1
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float: 1
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Function: "asinh":
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double: 2
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float: 2
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Function: "asinh_towardzero":
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double: 2
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float: 2
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Function: "atan":
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float: 1
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Function: "atan2":
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float: 1
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Function: "atan2_towardzero":
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double: 1
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float: 2
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Function: "atan_towardzero":
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double: 1
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float: 1
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Function: "atanh":
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double: 2
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float: 2
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Function: "atanh_towardzero":
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double: 2
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float: 2
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Function: "cabs":
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double: 1
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Function: "cabs_towardzero":
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double: 1
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Function: Real part of "cacos":
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double: 1
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float: 2
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Function: Imaginary part of "cacos":
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double: 2
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float: 2
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Function: Real part of "cacos_towardzero":
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double: 3
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float: 2
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Function: Imaginary part of "cacos_towardzero":
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double: 4
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float: 2
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Function: Real part of "cacosh":
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double: 2
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float: 2
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Function: Imaginary part of "cacosh":
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double: 1
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float: 2
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Function: Real part of "cacosh_towardzero":
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double: 4
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float: 2
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Function: Imaginary part of "cacosh_towardzero":
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double: 3
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float: 2
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Function: "carg":
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float: 1
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Function: "carg_towardzero":
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double: 1
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float: 2
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Function: Real part of "casin":
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double: 1
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float: 1
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Function: Imaginary part of "casin":
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double: 2
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float: 2
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Function: Real part of "casin_towardzero":
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double: 3
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float: 1
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Function: Imaginary part of "casin_towardzero":
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double: 4
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float: 2
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Function: Real part of "casinh":
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double: 2
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float: 2
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Function: Imaginary part of "casinh":
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double: 1
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float: 1
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Function: Real part of "casinh_towardzero":
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double: 4
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float: 2
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Function: Imaginary part of "casinh_towardzero":
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double: 3
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float: 1
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Function: Real part of "catan":
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double: 1
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float: 1
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Function: Imaginary part of "catan":
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double: 1
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float: 1
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Function: Real part of "catan_towardzero":
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double: 1
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float: 2
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Function: Imaginary part of "catan_towardzero":
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double: 2
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float: 2
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Function: Real part of "catanh":
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double: 1
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float: 1
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Function: Imaginary part of "catanh":
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double: 1
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float: 1
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Function: Real part of "catanh_towardzero":
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double: 2
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float: 2
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Function: Imaginary part of "catanh_towardzero":
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double: 1
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float: 2
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Function: "cbrt":
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double: 4
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float: 1
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Function: "cbrt_towardzero":
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double: 3
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float: 1
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Function: Real part of "ccos":
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double: 1
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float: 1
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Function: Imaginary part of "ccos":
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double: 1
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float: 1
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Function: Real part of "ccos_towardzero":
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double: 1
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float: 2
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Function: Imaginary part of "ccos_towardzero":
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double: 3
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float: 3
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Function: Real part of "ccosh":
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double: 1
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float: 1
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Function: Imaginary part of "ccosh":
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double: 1
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float: 1
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Function: Real part of "ccosh_towardzero":
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double: 2
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float: 3
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Function: Imaginary part of "ccosh_towardzero":
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double: 3
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float: 3
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Function: Real part of "cexp":
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double: 2
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float: 1
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Function: Imaginary part of "cexp":
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double: 1
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float: 2
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Function: Real part of "cexp_towardzero":
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double: 2
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float: 2
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Function: Imaginary part of "cexp_towardzero":
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double: 3
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float: 3
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Function: Real part of "clog":
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double: 3
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float: 3
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Function: Imaginary part of "clog":
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float: 1
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Function: Real part of "clog10":
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double: 3
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float: 4
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Function: Imaginary part of "clog10":
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double: 2
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float: 2
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Function: Real part of "clog10_towardzero":
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double: 5
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float: 5
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Function: Imaginary part of "clog10_towardzero":
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double: 2
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float: 3
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Function: Real part of "clog_towardzero":
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double: 4
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float: 4
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Function: Imaginary part of "clog_towardzero":
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double: 1
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float: 3
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Function: "cos":
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double: 1
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float: 1
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Function: "cos_towardzero":
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double: 1
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float: 1
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Function: "cosh":
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double: 2
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float: 2
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Function: "cosh_towardzero":
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double: 3
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float: 1
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Function: Real part of "cpow":
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double: 2
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float: 5
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Function: Imaginary part of "cpow":
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float: 2
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Function: Real part of "cpow_towardzero":
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double: 5
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float: 8
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Function: Imaginary part of "cpow_towardzero":
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double: 1
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float: 2
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Function: Real part of "csin":
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double: 1
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float: 1
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Function: Real part of "csin_towardzero":
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double: 3
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float: 3
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Function: Imaginary part of "csin_towardzero":
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double: 1
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float: 1
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Function: Real part of "csinh":
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float: 1
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Function: Imaginary part of "csinh":
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double: 1
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float: 1
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Function: Real part of "csinh_towardzero":
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double: 2
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float: 2
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Function: Imaginary part of "csinh_towardzero":
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double: 3
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float: 3
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Function: Real part of "csqrt":
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double: 2
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float: 2
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Function: Imaginary part of "csqrt":
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double: 2
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float: 2
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Function: Real part of "csqrt_towardzero":
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double: 4
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float: 3
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Function: Imaginary part of "csqrt_towardzero":
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double: 4
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float: 3
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Function: Real part of "ctan":
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double: 1
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float: 1
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Function: Imaginary part of "ctan":
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double: 2
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float: 2
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Function: Real part of "ctan_towardzero":
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double: 5
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float: 3
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Function: Imaginary part of "ctan_towardzero":
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double: 2
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float: 3
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Function: Real part of "ctanh":
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double: 2
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float: 2
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Function: Imaginary part of "ctanh":
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double: 2
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float: 2
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Function: Real part of "ctanh_towardzero":
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double: 2
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float: 3
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Function: Imaginary part of "ctanh_towardzero":
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double: 5
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float: 3
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Function: "erf":
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double: 1
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float: 1
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Function: "erf_towardzero":
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double: 1
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float: 1
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Function: "erfc":
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double: 5
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float: 2
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Function: "erfc_towardzero":
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double: 3
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float: 3
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Function: "exp":
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double: 1
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float: 1
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Function: "exp10":
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double: 2
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Function: "exp10_towardzero":
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double: 3
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float: 1
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Function: "exp2":
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double: 1
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Function: "exp2_towardzero":
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double: 1
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Function: "exp_towardzero":
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double: 1
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float: 1
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Function: "expm1":
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double: 1
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float: 1
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Function: "expm1_towardzero":
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double: 1
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float: 2
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Function: "fma_towardzero":
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double: 1
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Function: "gamma":
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double: 4
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float: 3
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Function: "gamma_towardzero":
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double: 5
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float: 3
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Function: "hypot":
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double: 1
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Function: "hypot_towardzero":
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double: 1
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Function: "j0":
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double: 2
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float: 8
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Function: "j0_towardzero":
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double: 4
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float: 6
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Function: "j1":
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double: 2
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float: 8
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Function: "j1_towardzero":
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double: 3
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float: 2
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Function: "jn":
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double: 4
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float: 4
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Function: "jn_towardzero":
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double: 5
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float: 5
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Function: "lgamma":
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double: 4
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float: 3
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Function: "lgamma_towardzero":
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double: 5
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float: 3
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Function: "log":
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float: 1
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Function: "log10":
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double: 2
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float: 2
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Function: "log10_towardzero":
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double: 2
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float: 1
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Function: "log1p":
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double: 1
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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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Function: "log2":
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double: 2
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float: 1
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Function: "log2_towardzero":
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double: 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_towardzero":
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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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float: 1
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Function: "pow_towardzero":
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double: 1
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float: 1
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Function: "sin":
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double: 1
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float: 1
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Function: "sin_towardzero":
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double: 1
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float: 1
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Function: "sincos":
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double: 1
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float: 1
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Function: "sincos_towardzero":
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double: 1
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float: 1
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Function: "sinh":
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double: 2
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float: 2
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Function: "sinh_towardzero":
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double: 3
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float: 2
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Function: "tan":
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float: 1
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Function: "tan_towardzero":
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double: 1
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float: 1
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Function: "tanh":
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double: 2
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float: 2
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Function: "tanh_towardzero":
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double: 2
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float: 2
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Function: "tgamma":
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double: 9
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Function: "tgamma_towardzero":
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double: 9
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Function: "y0":
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double: 3
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float: 6
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Function: "y0_towardzero":
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double: 3
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float: 3
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Function: "y1":
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double: 3
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float: 2
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Function: "y1_towardzero":
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double: 3
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float: 2
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Function: "yn":
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double: 3
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float: 3
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Function: "yn_towardzero":
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double: 3
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float: 3
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# end of automatic generation
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