cgemm_tcopy_4_msa.c

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#include "common.h"
#include "macros_msa.h"

int CNAME(BLASLONG m, BLASLONG n, FLOAT *src, BLASLONG lda, FLOAT *dst)
{
    BLASLONG i, j;
    FLOAT *psrc0;
    FLOAT *psrc1, *psrc2;
    FLOAT *pdst0;
    FLOAT ctemp01, ctemp02, ctemp03, ctemp04;
    v4f32 src0, src1, src2, src3;

    psrc0 = src;
    pdst0 = dst;
    lda *= 2;

    for (j = (n >> 2); j--;)
    {
        psrc1 = psrc0;
        psrc2 = psrc0 + lda;
        psrc0 += 8;

        for (i = (m >> 1); i--;)
        {
            LD_SP2(psrc1, 4, src0, src1);
            LD_SP2(psrc2, 4, src2, src3);
            ST_SP4_INC(src0, src1, src2, src3, pdst0, 4);
            psrc1 += 2 * lda;
            psrc2 += 2 * lda;
        }

        if (m & 1)
        {
            LD_SP2(psrc1, 4, src0, src1);
            ST_SP2_INC(src0, src1, pdst0, 4);
        }
    }

    if (n & 2)
    {
        psrc1 = psrc0;
        psrc2 = psrc0 + lda;
        psrc0 += 4;

        for (i = (m >> 1); i--;)
        {
            src0 = LD_SP(psrc1);
            src1 = LD_SP(psrc2);
            ST_SP2_INC(src0, src1, pdst0, 4);

            psrc1 += 2 * lda;
            psrc2 += 2 * lda;
        }

        if (m & 1)
        {
            src0 = LD_SP(psrc1);
            ST_SP(src0, pdst0);
            pdst0 += 4;
        }
    }

    if (n & 1)
    {
        psrc1 = psrc0;
        psrc2 = psrc0 + lda;
        psrc0 += 2;

        for (i = (m >> 1); i--;)
        {
            ctemp01 = *(psrc1 + 0);
            ctemp02 = *(psrc1 + 1);
            ctemp03 = *(psrc2 + 0);
            ctemp04 = *(psrc2 + 1);

            *(pdst0 + 0) = ctemp01;
            *(pdst0 + 1) = ctemp02;
            *(pdst0 + 2) = ctemp03;
            *(pdst0 + 3) = ctemp04;

            psrc1 += 2 * lda;
            psrc2 += 2 * lda;
            pdst0 += 4;
        }

        if (m & 1)
        {
            ctemp01 = *(psrc1 + 0);
            ctemp02 = *(psrc1 + 1);

            *(pdst0 + 0) = ctemp01;
            *(pdst0 + 1) = ctemp02;
            pdst0 += 2;
        }
    }

    return 0;
}