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7 daysmath: Refactor how to use libm-test-ulpsAdhemerval Zanella2-1080/+0
The current approach tracks math maximum supported errors by explicitly setting them per function and architecture. On newer implementations or new compiler versions, the file is updated with newer values if it shows higher results. The idea is to track the maximum known error, to update the manual with the obtained values. The constant libm-test-ulps shows little value, where it is usually a mechanical change done by the maintainer, for past releases it is usually ignored whether the ulp change resulted from a compiler regression, and the math tests already have a maximum ulp error that triggers a regression. It was shown by a recent update after the new acosf [1] implementation that is correctly rounded, where the libm-test-ulps was indeed from a compiler issue. This patch removes all arch-specific libm-test-ulps, adds system generic libm-test-ulps where applicable, and changes its semantics. The generic files now track specific implementation constraints, like if it is expected to be correctly rounded, or if the system-specific has different error expectations. Now multiple libm-test-ulps can be defined, and system-specific overrides generic implementation. This is for the case where arch-specific implementation might show worse precision than generic implementation, for instance, the cbrtf on i686. Regressions are only reported if the implementation shows larger errors than 9 ulps (13 for IBM long double) unless it is overridden by libm-test-ulps and the maximum error is not printed at the end of tests. The regen-ulps rule is also removed since it does not make sense to update the libm-test-ulps automatically. The manual error table is also removed, Paul Zimmermann and others have been tracking libm precision with a more comprehensive analysis for some releases; so link to his work instead. [1] https://sourceware.org/git/?p=glibc.git;a=commit;h=9cc9f8e11e8fb8f54f1e84d9f024917634a78201
2025-02-12math: Use tanpif from CORE-MATHAdhemerval Zanella1-1/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows better performance to the generic tanpif. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): latency master patched improvement x86_64 85.1683 47.7990 43.88% x86_64v2 76.8219 41.4679 46.02% x86_64v3 73.7775 37.7734 48.80% aarch64 (Neoverse) 35.4514 18.0742 49.02% power8 22.7604 10.1054 55.60% power10 22.1358 9.9553 55.03% reciprocal-throughput master patched improvement x86_64 41.0174 19.4718 52.53% x86_64v2 34.8565 11.3761 67.36% x86_64v3 34.0325 9.6989 71.50% aarch64 (Neoverse) 25.4349 9.2017 63.82% power8 13.8626 3.8486 72.24% power10 11.7933 3.6420 69.12% Reviewed-by: DJ Delorie <dj@redhat.com>
2025-02-12math: Use sinpif from CORE-MATHAdhemerval Zanella1-1/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows better performance to the generic sinpif. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): latency master patched improvement x86_64 47.5710 38.4455 19.18% x86_64v2 46.8828 40.7563 13.07% x86_64v3 44.0034 34.1497 22.39% aarch64 (Neoverse) 19.2493 14.1968 26.25% power8 23.5312 16.3854 30.37% power10 22.6485 10.2888 54.57% reciprocal-throughput master patched improvement x86_64 21.8858 11.6717 46.67% x86_64v2 22.0620 11.9853 45.67% x86_64v3 21.5653 11.3291 47.47% aarch64 (Neoverse) 13.0615 6.5499 49.85% power8 16.2030 6.9580 57.06% power10 12.8911 4.2858 66.75% Reviewed-by: DJ Delorie <dj@redhat.com>
2025-02-12math: Use cospif from CORE-MATHAdhemerval Zanella1-1/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows better performance to the generic cospif. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): latency master patched improvement x86_64 47.4679 38.4157 19.07% x86_64v2 46.9686 38.3329 18.39% x86_64v3 43.8929 31.8510 27.43% aarch64 (Neoverse) 18.8867 13.2089 30.06% power8 22.9435 7.8023 65.99% power10 15.4472 7.77505 49.67% reciprocal-throughput master patched improvement x86_64 20.9518 11.4991 45.12% x86_64v2 19.8699 10.5921 46.69% x86_64v3 19.3475 9.3998 51.42% aarch64 (Neoverse) 12.5767 6.2158 50.58% power8 15.0566 3.2654 78.31% power10 9.2866 3.1147 66.46% Reviewed-by: DJ Delorie <dj@redhat.com>
2025-02-12math: Use atanpif from CORE-MATHAdhemerval Zanella1-1/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows better performance to the generic atanpif. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): latency master patched improvement x86_64 66.3296 52.7558 20.46% x86_64v2 66.0429 51.4007 22.17% x86_64v3 60.6294 48.7876 19.53% aarch64 (Neoverse) 24.3163 20.9110 14.00% power8 16.5766 13.3620 19.39% power10 16.5115 13.4072 18.80% reciprocal-throughput master patched improvement x86_64 30.8599 16.0866 47.87% x86_64v2 29.2286 15.4688 47.08% x86_64v3 23.0960 12.8510 44.36% aarch64 (Neoverse) 15.4619 10.6752 30.96% power8 7.9200 5.2483 33.73% power10 6.8539 4.6262 32.50% Reviewed-by: DJ Delorie <dj@redhat.com>
2025-02-12math: Use atan2pif from CORE-MATHAdhemerval Zanella1-1/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows better performance to the generic atan2pif. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): latency master patched improvement x86_64 79.4006 70.8726 10.74% x86_64v2 77.5136 69.1424 10.80% x86_64v3 71.8050 68.1637 5.07% aarch64 (Neoverse) 27.8363 24.7700 11.02% power8 39.3893 17.2929 56.10% power10 19.7200 16.8187 14.71% reciprocal-throughput master patched improvement x86_64 38.3457 30.9471 19.29% x86_64v2 37.4023 30.3112 18.96% x86_64v3 33.0713 24.4891 25.95% aarch64 (Neoverse) 19.3683 15.3259 20.87% power8 19.5507 8.27165 57.69% power10 9.05331 7.63775 15.64% Reviewed-by: DJ Delorie <dj@redhat.com>
2025-02-12math: Use asinpif from CORE-MATHAdhemerval Zanella1-1/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows better performance to the generic asinpif. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): latency master patched improvement x86_64 46.4996 41.6126 10.51% x86_64v2 46.7551 38.8235 16.96% x86_64v3 42.6235 33.7603 20.79% aarch64 (Neoverse) 17.4161 14.3604 17.55% power8 10.7347 9.0193 15.98% power10 10.6420 9.0362 15.09% reciprocal-throughput master patched improvement x86_64 24.7208 16.5544 33.03% x86_64v2 24.2177 14.8938 38.50% x86_64v3 20.5617 10.5452 48.71% aarch64 (Neoverse) 13.4827 7.17613 46.78% power8 6.46134 3.56089 44.89% power10 5.79007 3.49544 39.63% Reviewed-by: DJ Delorie <dj@redhat.com>
2025-02-12math: Use acospif from CORE-MATHAdhemerval Zanella1-1/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows better performance to the generic acospif. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): latency master patched improvement x86_64 54.8281 42.9070 21.74% x86_64v2 54.1717 42.7497 21.08% x86_64v3 49.3552 34.1512 30.81% aarch64 (Neoverse) 17.9395 14.3733 19.88% power8 20.3110 8.8609 56.37% power10 11.3113 8.84067 21.84% reciprocal-throughput master patched improvement x86_64 21.2301 14.4803 31.79% x86_64v2 20.6858 13.9506 32.56% x86_64v3 16.1944 11.3377 29.99% aarch64 (Neoverse) 11.4474 7.13282 37.69% power8 10.6916 3.57547 66.56% power10 4.64269 3.54145 23.72% Reviewed-by: DJ Delorie <dj@redhat.com>
2025-01-06or1k: Update nofpu libm-test-ulpsStafford Horne1-12/+8
Updates tolerances due to change to use CORE-MATH
2025-01-01Update copyright dates with scripts/update-copyrightsPaul Eggert2-2/+2
2024-12-18math: Use tanhf from CORE-MATHAdhemerval Zanella1-4/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows slight better performance to the generic tanhf. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): Latency master patched improvement x86_64 51.5273 41.0951 20.25% x86_64v2 47.7021 39.1526 17.92% x86_64v3 45.0373 34.2737 23.90% i686 133.9970 83.8596 37.42% aarch64 (Neoverse) 21.5439 14.7961 31.32% power10 13.3301 8.4406 36.68% reciprocal-throughput master patched improvement x86_64 24.9493 12.8547 48.48% x86_64v2 20.7051 12.7761 38.29% x86_64v3 19.2492 11.0851 42.41% i686 78.6498 29.8211 62.08% aarch64 (Neoverse) 11.6026 7.11487 38.68% power10 6.3328 2.8746 54.61% 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>
2024-12-18math: Use sinhf from CORE-MATHAdhemerval Zanella1-4/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows slight better performance to the generic sinhf. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): Latency master patched improvement x86_64 52.6819 49.1489 6.71% x86_64v2 49.1162 42.9447 12.57% x86_64v3 46.9732 39.9157 15.02% i686 141.1470 129.6410 8.15% aarch64 (Neoverse) 20.8539 17.1288 17.86% power10 14.5258 9.1906 36.73% reciprocal-throughput master patched improvement x86_64 27.5553 23.9395 13.12% x86_64v2 21.6423 20.3219 6.10% x86_64v3 21.4842 16.0224 25.42% i686 87.9709 86.1626 2.06% aarch64 (Neoverse) 15.1919 12.2744 19.20% power10 7.2188 5.2611 27.12% 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>
2024-12-18math: Use coshf from CORE-MATHAdhemerval Zanella1-4/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode), although it should worse performance than current one. The current implementation performance comes mainly from the internal usage of the optimize expf implementation, and shows a maximum ULPs of 2 for FE_TONEAREST and 3 for other rounding modes. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): Latency master patched improvement x86_64 40.6995 49.0737 -20.58% x86_64v2 40.5841 44.3604 -9.30% x86_64v3 39.3879 39.7502 -0.92% i686 112.3380 129.8570 -15.59% aarch64 (Neoverse) 18.6914 17.0946 8.54% power10 11.1343 9.3245 16.25% reciprocal-throughput master patched improvement x86_64 18.6471 24.1077 -29.28% x86_64v2 17.7501 20.2946 -14.34% x86_64v3 17.8262 17.1877 3.58% i686 64.1454 86.5645 -34.95% aarch64 (Neoverse) 9.77226 12.2314 -25.16% power10 4.0200 5.3316 -32.63% 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>
2024-12-18math: Use atanhf from CORE-MATHAdhemerval Zanella1-4/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows slight better performance to the generic atanhf. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): Latency master patched improvement x86_64 59.4930 45.8568 22.92% x86_64v2 59.5705 45.5804 23.48% x86_64v3 53.1838 37.7155 29.08% i686 169.354 133.5940 21.12% aarch64 (Neoverse) 26.0781 16.9829 34.88% power10 15.6591 10.7623 31.27% reciprocal-throughput master patched improvement x86_64 23.5903 18.5766 21.25% x86_64v2 22.6489 18.2683 19.34% x86_64v3 19.0401 13.9474 26.75% i686 97.6034 107.3260 -9.96% aarch64 (Neoverse) 15.3664 9.57846 37.67% power10 6.8877 4.6242 32.86% 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>
2024-12-18math: Use atan2f from CORE-MATHAdhemerval Zanella1-8/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows slight better performance to the generic atan2f. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): Latency master patched improvement x86_64 68.1175 69.2014 -1.59% x86_64v2 66.9884 66.0081 1.46% x86_64v3 57.7034 61.6407 -6.82% i686 189.8690 152.7560 19.55% aarch64 (Neoverse) 32.6151 24.5382 24.76% power10 21.7282 17.1896 20.89% reciprocal-throughput master patched improvement x86_64 34.5202 31.6155 8.41% x86_64v2 32.6379 30.3372 7.05% x86_64v3 34.3677 23.6455 31.20% i686 157.7290 75.8308 51.92% aarch64 (Neoverse) 27.7788 16.2671 41.44% power10 15.5715 8.1588 47.60% 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>
2024-12-18math: Use atanf from CORE-MATHAdhemerval Zanella1-4/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows slight better performance to the generic atanf. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): Latency master patched improvement x86_64 56.8265 53.6842 5.53% x86_64v2 54.8177 53.6842 2.07% x86_64v3 46.2915 48.7034 -5.21% i686 158.3760 108.9560 31.20% aarch64 (Neoverse) 21.687 20.5893 5.06% power10 13.1903 13.5012 -2.36% reciprocal-throughput master patched improvement x86_64 16.6787 16.7601 -0.49% x86_64v2 16.6983 16.7601 -0.37% x86_64v3 16.2268 12.1391 25.19% i686 138.6840 36.0640 74.00% aarch64 (Neoverse) 11.8012 10.3565 12.24% power10 5.3212 4.2894 19.39% 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>
2024-12-18math: Use asinhf from CORE-MATHAdhemerval Zanella1-4/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows slight better performance to the generic asinhf. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): Latency master patched improvement x86_64 64.5128 56.9717 11.69% x86_64v2 63.3065 57.2666 9.54% x86_64v3 62.8719 51.4170 18.22% i686 189.1630 137.635 27.24% aarch64 (Neoverse) 25.3551 20.5757 18.85% power10 17.9712 13.3302 25.82% reciprocal-throughput master patched improvement x86_64 20.0844 15.4731 22.96% x86_64v2 19.2919 15.4000 20.17% x86_64v3 18.7226 11.9009 36.44% i686 103.7670 80.2681 22.65% aarch64 (Neoverse) 12.5005 8.68969 30.49% power10 7.2220 5.03617 30.27% 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>
2024-12-18math: Use asinf from CORE-MATHAdhemerval Zanella1-4/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows slight better performance to the generic asinf. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): Latency master patched improvement x86_64 42.8237 35.2460 17.70% x86_64v2 43.3711 35.9406 17.13% x86_64v3 35.0335 30.5744 12.73% i686 213.8780 104.4710 51.15% aarch64 (Neoverse) 17.2937 13.6025 21.34% power10 12.0227 7.4241 38.25% reciprocal-throughput master patched improvement x86_64 13.6770 15.5231 -13.50% x86_64v2 13.8722 16.0446 -15.66% x86_64v3 13.6211 13.2753 2.54% i686 186.7670 45.4388 75.67% aarch64 (Neoverse) 9.96089 9.39285 5.70% power10 4.9862 3.7819 24.15% 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>
2024-12-18math: Use acoshf from CORE-MATHAdhemerval Zanella1-4/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows slight better performance to the generic acoshf. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): Latency master patched improvement x86_64 61.2471 58.7742 4.04% x86_64-v2 62.6519 59.0523 5.75% x86_64-v3 58.7408 50.1393 14.64% aarch64 24.8580 21.3317 14.19% power10 17.0469 13.1345 22.95% reciprocal-throughput master patched improvement x86_64 16.1618 15.1864 6.04% x86_64-v2 15.7729 14.7563 6.45% x86_64-v3 14.1669 11.9568 15.60% aarch64 10.911 9.5486 12.49% power10 6.38196 5.06734 20.60% 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>
2024-12-18math: Use acosf from CORE-MATHAdhemerval Zanella1-4/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows slight better performance to the generic acosf. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): Latency master patched improvement x86_64 52.5098 36.6312 30.24% x86_64v2 53.0217 37.3091 29.63% x86_64v3 42.8501 32.3977 24.39% i686 207.3960 109.4000 47.25% aarch64 21.3694 13.7871 35.48% power10 14.5542 7.2891 49.92% reciprocal-throughput master patched improvement x86_64 14.1487 15.9508 -12.74% x86_64v2 14.3293 16.1899 -12.98% x86_64v3 13.6563 12.6161 7.62% i686 158.4060 45.7354 71.13% aarch64 12.5515 9.19233 26.76% power10 5.7868 3.3487 42.13% 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>
2024-12-15or1k: Update libm-test-ulpsStafford Horne1-0/+16
Regen to add new functions acospi, asinpi, atan2pi and atanpi.
2024-12-13or1k: Update libm-test-ulpsStafford Horne1-0/+27
Pick up new functions cospi, "Imaginary part of csin", exp10m1, exp2m1, log10p1, log2p1, sinpi and tanpi.
2024-11-22math: Use tanf from CORE-MATHAdhemerval Zanella1-6/+0
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>
2024-11-22math: Use lgammaf from CORE-MATHAdhemerval Zanella1-4/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows better performance to the generic lgammaf. The code was adapted to glibc style, to use the definition of math_config.h, to remove errno handling, to use math_narrow_eval on overflow usage, and to adapt to make it reentrant. 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 86.5609 70.3278 18.75% x86_64v2 78.3030 69.9709 10.64% x86_64v3 74.7470 59.8457 19.94% i686 387.355 229.761 40.68% aarch64 40.8341 33.7563 17.33% power10 26.5520 16.1672 39.11% powerpc 28.3145 17.0625 39.74% reciprocal-throughput master patched improvement x86_64 68.0461 48.3098 29.00% x86_64v2 55.3256 47.2476 14.60% x86_64v3 52.3015 38.9028 25.62% i686 340.848 195.707 42.58% aarch64 36.8000 30.5234 17.06% power10 20.4043 12.6268 38.12% powerpc 22.6588 13.8866 38.71% 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>
2024-11-22math: Use erfcf from CORE-MATHAdhemerval Zanella1-4/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows better performance to the generic erfcf. The code was adapted to glibc style and to use the definition of math_config.h. 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 98.8796 66.2142 33.04% x86_64v2 98.9617 67.4221 31.87% x86_64v3 87.4161 53.1754 39.17% aarch64 33.8336 22.0781 34.75% power10 21.1750 13.5864 35.84% powerpc 21.4694 13.8149 35.65% reciprocal-throughput master patched improvement x86_64 48.5620 27.6731 43.01% x86_64v2 47.9497 28.3804 40.81% x86_64v3 42.0255 18.1355 56.85% aarch64 24.3938 13.4041 45.05% power10 10.4919 6.1881 41.02% powerpc 11.763 6.76468 42.49% 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>
2024-11-22math: Use erff from CORE-MATHAdhemerval Zanella1-4/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows better performance to the generic erff. The code was adapted to glibc style and to use the definition of math_config.h. 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 85.7363 45.1372 47.35% x86_64v2 86.6337 38.5816 55.47% x86_64v3 71.3810 34.0843 52.25% i686 190.143 97.5014 48.72% aarch64 34.9091 14.9320 57.23% power10 38.6160 8.5188 77.94% powerpc 39.7446 8.45781 78.72% reciprocal-throughput master patched improvement x86_64 35.1739 14.7603 58.04% x86_64v2 34.5976 11.2283 67.55% x86_64v3 27.3260 9.8550 63.94% i686 91.0282 30.8840 66.07% aarch64 22.5831 6.9615 69.17% power10 18.0386 3.0918 82.86% powerpc 20.7277 3.63396 82.47% 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>
2024-11-22math: Use cbrtf from CORE-MATHAdhemerval Zanella1-4/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows better performance to the generic cbrtf. The code was adapted to glibc style and to use the definition of math_config.h. 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 68.6348 36.8908 46.25% x86_64v2 67.3418 36.6968 45.51% x86_64v3 63.4981 32.7859 48.37% aarch64 29.3172 12.1496 58.56% power10 18.0845 8.8893 50.85% powerpc 18.0859 8.79527 51.37% reciprocal-throughput master patched improvement x86_64 36.4369 13.3565 63.34% x86_64v2 37.3611 13.1149 64.90% x86_64v3 31.6024 11.2102 64.53% aarch64 18.6866 7.3474 60.68% power10 9.4758 3.6329 61.66% powerpc 9.58896 3.90439 59.28% 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>
2024-11-01math: Use log1pf from CORE-MATHAdhemerval Zanella1-8/+0
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>
2024-11-01math: Use expm1f from CORE-MATHAdhemerval Zanella1-4/+0
The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows better performance compared to the generic expm1f. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): Latency master patched improvement x86_64 96.7402 36.4026 62.37% x86_64v2 97.5391 33.4625 65.69% x86_64v3 82.1778 30.8668 62.44% i686 120.58 94.8302 21.35% aarch64 32.3558 12.8881 60.17% power10 23.5087 9.8574 58.07% powerpc 23.4776 9.06325 61.40% reciprocal-throughput master patched improvement x86_64 27.8224 15.9255 42.76% x86_64v2 27.8364 9.6438 65.36% x86_64v3 20.3227 9.6146 52.69% i686 63.5629 59.4718 6.44% aarch64 17.4838 7.1082 59.34% power10 12.4644 8.7829 29.54% powerpc 14.2152 5.94765 58.16% 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>
2024-10-11replace tgammaf by the CORE-MATH implementationPaul Zimmermann1-4/+0
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>
2024-06-17Implement C23 logp1Joseph Myers1-0/+16
C23 adds various <math.h> function families originally defined in TS 18661-4. Add the logp1 functions (aliases for log1p functions - the name is intended to be more consistent with the new log2p1 and log10p1, where clearly it would have been very confusing to name those functions log21p and log101p). As aliases rather than new functions, the content of this patch is somewhat different from those actually adding new functions. Tests are shared with log1p, so this patch *does* mechanically update all affected libm-test-ulps files to expect the same errors for both functions. The vector versions of log1p on aarch64 and x86_64 are *not* updated to have logp1 aliases (and thus there are no corresponding header, tests, abilist or ulps changes for vector functions either). It would be reasonable for such vector aliases and corresponding changes to other files to be made separately. For now, the log1p tests instead avoid testing logp1 in the vector case (a Makefile change is needed to avoid problems with grep, used in generating the .c files for vector function tests, matching more than one ALL_RM_TEST line in a file testing multiple functions with the same inputs, when it assumes that the .inc file only has a single such line). Tested for x86_64 and x86, and with build-many-glibcs.py.
2024-05-03or1k: Add hard float libm-test-ulpsStafford Horne2-0/+1114
This patch adds the ulps test file to prepare for the upcoming hard float patch. This is separated out to make the hard float patch smaller. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2024-01-01Update copyright dates with scripts/update-copyrightsPaul Eggert2-2/+2
2023-01-06Update copyright dates with scripts/update-copyrightsJoseph Myers2-2/+2
2022-01-05or1k: Build InfrastructureStafford Horne1-0/+1
Here we define the minumum linux kernel version at 5.4.0, as that is the long term support version where 32-bit architectures start to support 64-bit time API's. The OpenRISC kernel had some bugs up until version 5.8 which caused issues with glibc fork/clone, they have been backported to 5.4 but not previous versions. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2022-01-05or1k: math soft float supportStafford Horne2-0/+57
OpenRISC support hard float but I will like to submit that after glibc soft float goes upstream. The hard float support depends on adding user access to the FPCSR, which is not supported by the kernel yet. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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