cpu_feature_optimizer.hpp

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/*
 * 
 * Copyright 2025 Nathanne Isip
 * 
 * Redistribution and use in source and binary forms,
 * with or without modification, are permitted provided
 * that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the
 *    above copyright notice, this list of conditions
 *    and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce
 *    the above copyright notice, this list of conditions
 *    and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 * CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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 */
 
#ifndef CHISEI_CPU_FEATURE_OPTIMIZER_HPP
#define CHISEI_CPU_FEATURE_OPTIMIZER_HPP
 
#include <random>
 
#if(defined(__RDRND__) && defined(__RDSEED__)) || defined(__AVX__)
#   include <immintrin.h>
#endif
 
namespace chisei {
 
    class CPUFeatureOptimizer {
    public:
 
        static void init_cpu_features(std::mt19937 gen);
 
        static inline double dot_product_fma(
            const double* a,
            const double* b,
            int size
        );
    };
}
 
#endif