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Wencey WangandJoost VandeVondele
ffffe1bdb5
This adds actual intrinsics of SIMD on loongarch64, with considerable performance improvements. Benchmark on `Loongson-3A6000-HV Not Specified CPU @ 2.5GHz` Baseline GCC 14 (debian trixie): ``` =========================== Total time (ms) : 17816 Nodes searched : 2336177 Nodes/second : 131128 ``` With this PR: GCC 16 (debian sid): ``` ./stockfish compiler Stockfish dev-20260516-52e8d9ef by the Stockfish developers (see AUTHORS file) Compiled by : g++ (GNUC) 16.1.0 on Linux Compilation architecture : loongarch64-lasx Compilation settings : 64bit LASX LSX Compiler __VERSION__ macro : 16.1.0 =========================== Total time (ms) : 3518 Nodes searched : 2336177 Nodes/second : 664063 ``` ``` ./stockfish compiler Stockfish dev-20260516-52e8d9ef by the Stockfish developers (see AUTHORS file) Compiled by : g++ (GNUC) 16.1.0 on Linux Compilation architecture : loongarch64-lsx Compilation settings : 64bit LSX Compiler __VERSION__ macro : 16.1.0 =========================== Total time (ms) : 4944 Nodes searched : 2336177 Nodes/second : 472527 ``` clang 22 (debian sid): ``` ./stockfish compiler Stockfish dev-20260516-52e8d9ef by the Stockfish developers (see AUTHORS file) Compiled by : clang++ 22.1.5 on Linux Compilation architecture : loongarch64-lasx Compilation settings : 64bit LASX LSX Compiler __VERSION__ macro : Debian Clang 22.1.5 (1) =========================== Total time (ms) : 3401 Nodes searched : 2336177 Nodes/second : 686908 ``` ``` ./stockfish compiler Stockfish dev-20260516-52e8d9ef by the Stockfish developers (see AUTHORS file) Compiled by : clang++ 22.1.5 on Linux Compilation architecture : loongarch64-lsx Compilation settings : 64bit LSX Compiler __VERSION__ macro : Debian Clang 22.1.5 (1) =========================== Total time (ms) : 5501 Nodes searched : 2336177 Nodes/second : 424682 ``` GCC 14 (debian trixie): ``` ./stockfish compiler Stockfish dev-20260516-52e8d9ef by the Stockfish developers (see AUTHORS file) Compiled by : g++ (GNUC) 14.2.0 on Linux Compilation architecture : loongarch64-lasx Compilation settings : 64bit LASX LSX Compiler __VERSION__ macro : 14.2.0 =========================== Total time (ms) : 3559 Nodes searched : 2336177 Nodes/second : 656413 ``` ``` ./stockfish compiler Stockfish dev-20260516-52e8d9ef by the Stockfish developers (see AUTHORS file) Compiled by : g++ (GNUC) 14.2.0 on Linux Compilation architecture : loongarch64-lsx Compilation settings : 64bit LSX Compiler __VERSION__ macro : 14.2.0 =========================== Total time (ms) : 5212 Nodes searched : 2336177 Nodes/second : 448230 ``` clang 19 (debian trixie): ``` ./stockfish compiler Stockfish dev-20260516-52e8d9ef by the Stockfish developers (see AUTHORS file) Compiled by : clang++ 19.1.7 on Linux Compilation architecture : loongarch64-lasx Compilation settings : 64bit LASX LSX Compiler __VERSION__ macro : Debian Clang 19.1.7 (3+b1) =========================== Total time (ms) : 4830 Nodes searched : 2336177 Nodes/second : 483680 ``` ``` ./stockfish compiler Stockfish dev-20260516-52e8d9ef by the Stockfish developers (see AUTHORS file) Compiled by : clang++ 19.1.7 on Linux Compilation architecture : loongarch64-lsx Compilation settings : 64bit LSX Compiler __VERSION__ macro : Debian Clang 19.1.7 (3+b1) =========================== Total time (ms) : 5568 Nodes searched : 2336177 Nodes/second : 419572 ``` closes https://github.com/official-stockfish/Stockfish/pull/6815 No functional change