OpenBLAS/kernel/mips/scopy_msa.c

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

int CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
{
    BLASLONG i;
    v4f32 x0, x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15;
    FLOAT f0, f1, f2, f3, f4, f5, f6, f7;

    if (n < 0)  return (0);

    if ((1 == inc_x) && (1 == inc_y))
    {
        if (n > 63)
        {
            FLOAT *x_pref;
            BLASLONG pref_offset;

            pref_offset = (BLASLONG)x & (L1_DATA_LINESIZE - 1);
            if (pref_offset > 0)
            {
                pref_offset = L1_DATA_LINESIZE - pref_offset;
                pref_offset = pref_offset / sizeof(FLOAT);
            }
            x_pref = x + pref_offset + 128 + 32;

            LD_SP8_INC(x, 4, x0, x1, x2, x3, x4, x5, x6, x7);
            for (i = (n >> 6) - 1; i--;)
            {
                PREF_OFFSET(x_pref, 0);
                PREF_OFFSET(x_pref, 32);
                PREF_OFFSET(x_pref, 64);
                PREF_OFFSET(x_pref, 96);
                PREF_OFFSET(x_pref, 128);
                PREF_OFFSET(x_pref, 160);
                PREF_OFFSET(x_pref, 192);
                PREF_OFFSET(x_pref, 224);
                x_pref += 64;

                x8 = LD_SP(x); x += 4;
                ST_SP(x0, y); y += 4;
                x9 = LD_SP(x); x += 4;
                ST_SP(x1, y); y += 4;
                x10 = LD_SP(x); x += 4;
                ST_SP(x2, y); y += 4;
                x11 = LD_SP(x); x += 4;
                ST_SP(x3, y); y += 4;
                x12 = LD_SP(x); x += 4;
                ST_SP(x4, y); y += 4;
                x13 = LD_SP(x); x += 4;
                ST_SP(x5, y); y += 4;
                x14 = LD_SP(x); x += 4;
                ST_SP(x6, y); y += 4;
                x15 = LD_SP(x); x += 4;
                ST_SP(x7, y); y += 4;
                x0 = LD_SP(x); x += 4;
                ST_SP(x8, y); y += 4;
                x1 = LD_SP(x); x += 4;
                ST_SP(x9, y); y += 4;
                x2 = LD_SP(x); x += 4;
                ST_SP(x10, y); y += 4;
                x3 = LD_SP(x); x += 4;
                ST_SP(x11, y); y += 4;
                x4 = LD_SP(x); x += 4;
                ST_SP(x12, y); y += 4;
                x5 = LD_SP(x); x += 4;
                ST_SP(x13, y); y += 4;
                x6 = LD_SP(x); x += 4;
                ST_SP(x14, y); y += 4;
                x7 = LD_SP(x); x += 4;
                ST_SP(x15, y); y += 4;
            }

            x8 = LD_SP(x); x += 4;
            x9 = LD_SP(x); x += 4;
            ST_SP(x0, y); y += 4;
            x10 = LD_SP(x); x += 4;
            ST_SP(x1, y); y += 4;
            x11 = LD_SP(x); x += 4;
            ST_SP(x2, y); y += 4;
            x12 = LD_SP(x); x += 4;
            ST_SP(x3, y); y += 4;
            x13 = LD_SP(x); x += 4;
            ST_SP(x4, y); y += 4;
            x14 = LD_SP(x); x += 4;
            ST_SP(x5, y); y += 4;
            x15 = LD_SP(x); x += 4;
            ST_SP(x6, y); y += 4;
            ST_SP(x7, y); y += 4;

            ST_SP8_INC(x8, x9, x10, x11, x12, x13, x14, x15, y, 4);
        }

        if (n & 63)
        {
            if (n & 32)
            {
                LD_SP8_INC(x, 4, x0, x1, x2, x3, x4, x5, x6, x7);
                ST_SP8_INC(x0, x1, x2, x3, x4, x5, x6, x7, y, 4);
            }

            if (n & 16)
            {
                LD_SP4_INC(x, 4, x0, x1, x2, x3);
                ST_SP4_INC(x0, x1, x2, x3, y, 4);
            }

            if (n & 8)
            {
                LD_SP2_INC(x, 4, x0, x1);
                ST_SP2_INC(x0, x1, y, 4);
            }

            if (n & 4)
            {
                LD_GP4_INC(x, 1, f0, f1, f2, f3);
                ST_GP4_INC(f0, f1, f2, f3, y, 1);
            }

            if (n & 2)
            {
                LD_GP2_INC(x, 1, f0, f1);
                ST_GP2_INC(f0, f1, y, 1);
            }

            if (n & 1)
            {
                *y = *x;
            }
        }
    }
    else
    {
        for (i = (n >> 3); i--;)
        {
            LD_GP8_INC(x, inc_x, f0, f1, f2, f3, f4, f5, f6, f7);
            ST_GP8_INC(f0, f1, f2, f3, f4, f5, f6, f7, y, inc_y);
        }

        if (n & 4)
        {
            LD_GP4_INC(x, inc_x, f0, f1, f2, f3);
            ST_GP4_INC(f0, f1, f2, f3, y, inc_y);
        }

        if (n & 2)
        {
            LD_GP2_INC(x, inc_x, f0, f1);
            ST_GP2_INC(f0, f1, y, inc_y);
        }

        if (n & 1)
        {
            *y = *x;
        }
    }

    return (0);
}