OpenBLAS/kernel/x86_64/sbgemv_n_microk_cooperlake.c

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/* need a new enough GCC for avx512 support */
#if (( defined(__GNUC__)  && __GNUC__   >= 10 && defined(__AVX512BF16__)) || (defined(__clang__) && __clang_major__ >= 9))

#define HAVE_SBGEMV_N_ACCL_KERNEL 1
#include "common.h"
#include <immintrin.h>

// Define micro kernels for ALPHA not ONE && BETA effective && BETA not ONE scenarios
#undef  ZERO_BETA
#undef  ONE_BETA
#undef  ONE_ALPHA
#include "sbgemv_n_microk_cooperlake_template.c"

// Define micro kernels for ALPHA not ONE && BETA as ONE scenarios
#undef  ZERO_BETA
#define ONE_BETA  1
#undef  ONE_ALPHA
#include "sbgemv_n_microk_cooperlake_template.c"

// Define micro kernels for ALPHA not ONE && BETA in-effective (BETA == 0) scenarios
#define ZERO_BETA 1
#undef  ONE_ALPHA
#include "sbgemv_n_microk_cooperlake_template.c"

// Define micro kernels for ALPHA as ONE && BETA in-effective (BETA == 0) scenarios
#define ZERO_BETA 1
#define ONE_ALPHA 1
#include "sbgemv_n_microk_cooperlake_template.c"

static int sbgemv_kernel_n(BLASLONG m, BLASLONG n, float alpha, bfloat16 *a, BLASLONG lda, bfloat16 *x, float beta, float *y)
{
    if (beta == ZERO) {          // BETA == 0.0, no need to accumulate the original Y data
        if (alpha == ONE) {           // ALPHA == 1.0, no need to multipy ALPHA
            sbgemv_kernel_32xN_lda_direct(m, n, alpha, a, lda, x, y);
        } else {                      // ALPHA != 1.0, need to multipy ALPHA
            sbgemv_kernel_32xN_lda_direct_alpha(m, n, alpha, a, lda, x, y);
        }
    } else {                     // BETA != 0.0, need to accumulate the original Y data no matter what ALPHA is
        if (beta == ONE) {
            sbgemv_kernel_32xN_lda_direct_alpha_one(m, n, alpha, a, lda, x, beta, y);
        } else {
            sbgemv_kernel_32xN_lda_direct_alpha_beta(m, n, alpha, a, lda, x, beta, y);
        }
    }

    return 0;
}

#endif