OpenBLAS/kernel/riscv64/trmmkernel_rvv_v1x8.c

/***************************************************************************
Copyright (c) 2022, The OpenBLAS Project
All rights reserved.
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
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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.
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its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
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 OPENBLAS PROJECT OR CONTRIBUTORS BE
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*****************************************************************************/

#include "common.h"

#if !defined(DOUBLE)
#define VSETVL(n) vsetvl_e32m2(n)
#define FLOAT_V_T vfloat32m2_t
#define VLEV_FLOAT vle32_v_f32m2
#define VSEV_FLOAT vse32_v_f32m2
#define VFMVVF_FLOAT vfmv_v_f_f32m2
#define VFMACCVF_FLOAT vfmacc_vf_f32m2
#define VFMULVF_FLOAT vfmul_vf_f32m2
#else
#define VSETVL(n) vsetvl_e64m2(n)
#define FLOAT_V_T vfloat64m2_t
#define VLEV_FLOAT vle64_v_f64m2
#define VSEV_FLOAT vse64_v_f64m2
#define VFMVVF_FLOAT vfmv_v_f_f64m2
#define VFMACCVF_FLOAT vfmacc_vf_f64m2
#define VFMULVF_FLOAT vfmul_vf_f64m2
#endif


// Optimizes the implementation in ../generic/trmmkernel_8x8.c


int CNAME(BLASLONG bm,BLASLONG bn,BLASLONG bk,FLOAT alpha,FLOAT* ba,FLOAT* bb,FLOAT* C,BLASLONG ldc ,BLASLONG offset)
{
    //fprintf(stderr, "%s, %s, bm=%4ld bn=%4ld bk=%4ld alpha=%f ldc=%ld\n", __FILE__, __FUNCTION__, bm, bn, bk, alpha, ldc);

    BLASLONG i,j,k;
    FLOAT *C0,*C1,*C2,*C3,*C4,*C5,*C6,*C7,*ptrba,*ptrbb;

    FLOAT_V_T va0, va1, va2, va3, va4, va5, va6, va7;
    FLOAT_V_T vres0, vres1, vres2, vres3, vres4, vres5, vres6, vres7;
    size_t vl;

    BLASLONG off, temp;

#if !defined(LEFT)
    off = -offset;
#else
    off = 0;
#endif
    for (j = bn/8; j > 0; j--)
    {
        C0 = C;
        C1 = C0+ldc;
        C2 = C1+ldc;
        C3 = C2+ldc;
        C4 = C3+ldc;
        C5 = C4+ldc;
        C6 = C5+ldc;
        C7 = C6+ldc;

#if defined(TRMMKERNEL) && defined(LEFT)
        off = offset;
#endif

        ptrba = ba;

        for (i = bm; i > 0; i -= vl)
        {
            vl = VSETVL(i);

#if (defined(LEFT) &&  defined(TRANSA)) || (!defined(LEFT) && !defined(TRANSA))
            ptrbb = bb;
#else
            ptrba += off*vl;
            ptrbb = bb + off*8;
#endif

            vres0 = VFMVVF_FLOAT(0.0, vl);
            vres1 = VFMVVF_FLOAT(0.0, vl);
            vres2 = VFMVVF_FLOAT(0.0, vl);
            vres3 = VFMVVF_FLOAT(0.0, vl);
            vres4 = VFMVVF_FLOAT(0.0, vl);
            vres5 = VFMVVF_FLOAT(0.0, vl);
            vres6 = VFMVVF_FLOAT(0.0, vl);
            vres7 = VFMVVF_FLOAT(0.0, vl);

#if (defined(LEFT) && !defined(TRANSA)) || (!defined(LEFT) && defined(TRANSA))
            temp = bk-off;
#elif defined(LEFT)
            temp = off+vl;  // number of values in A
#else
            temp = off+8;   // number of values in B
#endif

            for (k = temp/8; k > 0; k--) {
                va0 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;
                va1 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va0, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va0, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va0, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va0, vl);
                vres4 = VFMACCVF_FLOAT(vres4, *(ptrbb + 4), va0, vl);
                vres5 = VFMACCVF_FLOAT(vres5, *(ptrbb + 5), va0, vl);
                vres6 = VFMACCVF_FLOAT(vres6, *(ptrbb + 6), va0, vl);
                vres7 = VFMACCVF_FLOAT(vres7, *(ptrbb + 7), va0, vl);
                ptrbb += 8;
                va2 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va1, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va1, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va1, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va1, vl);
                vres4 = VFMACCVF_FLOAT(vres4, *(ptrbb + 4), va1, vl);
                vres5 = VFMACCVF_FLOAT(vres5, *(ptrbb + 5), va1, vl);
                vres6 = VFMACCVF_FLOAT(vres6, *(ptrbb + 6), va1, vl);
                vres7 = VFMACCVF_FLOAT(vres7, *(ptrbb + 7), va1, vl);
                ptrbb += 8;
                va3 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va2, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va2, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va2, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va2, vl);
                vres4 = VFMACCVF_FLOAT(vres4, *(ptrbb + 4), va2, vl);
                vres5 = VFMACCVF_FLOAT(vres5, *(ptrbb + 5), va2, vl);
                vres6 = VFMACCVF_FLOAT(vres6, *(ptrbb + 6), va2, vl);
                vres7 = VFMACCVF_FLOAT(vres7, *(ptrbb + 7), va2, vl);
                ptrbb += 8;
                va4 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va3, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va3, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va3, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va3, vl);
                vres4 = VFMACCVF_FLOAT(vres4, *(ptrbb + 4), va3, vl);
                vres5 = VFMACCVF_FLOAT(vres5, *(ptrbb + 5), va3, vl);
                vres6 = VFMACCVF_FLOAT(vres6, *(ptrbb + 6), va3, vl);
                vres7 = VFMACCVF_FLOAT(vres7, *(ptrbb + 7), va3, vl);
                ptrbb += 8;
                va5 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va4, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va4, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va4, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va4, vl);
                vres4 = VFMACCVF_FLOAT(vres4, *(ptrbb + 4), va4, vl);
                vres5 = VFMACCVF_FLOAT(vres5, *(ptrbb + 5), va4, vl);
                vres6 = VFMACCVF_FLOAT(vres6, *(ptrbb + 6), va4, vl);
                vres7 = VFMACCVF_FLOAT(vres7, *(ptrbb + 7), va4, vl);
                ptrbb += 8;
                va6 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va5, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va5, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va5, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va5, vl);
                vres4 = VFMACCVF_FLOAT(vres4, *(ptrbb + 4), va5, vl);
                vres5 = VFMACCVF_FLOAT(vres5, *(ptrbb + 5), va5, vl);
                vres6 = VFMACCVF_FLOAT(vres6, *(ptrbb + 6), va5, vl);
                vres7 = VFMACCVF_FLOAT(vres7, *(ptrbb + 7), va5, vl);
                ptrbb += 8;
                va7 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va6, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va6, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va6, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va6, vl);
                vres4 = VFMACCVF_FLOAT(vres4, *(ptrbb + 4), va6, vl);
                vres5 = VFMACCVF_FLOAT(vres5, *(ptrbb + 5), va6, vl);
                vres6 = VFMACCVF_FLOAT(vres6, *(ptrbb + 6), va6, vl);
                vres7 = VFMACCVF_FLOAT(vres7, *(ptrbb + 7), va6, vl);
                ptrbb += 8;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va7, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va7, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va7, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va7, vl);
                vres4 = VFMACCVF_FLOAT(vres4, *(ptrbb + 4), va7, vl);
                vres5 = VFMACCVF_FLOAT(vres5, *(ptrbb + 5), va7, vl);
                vres6 = VFMACCVF_FLOAT(vres6, *(ptrbb + 6), va7, vl);
                vres7 = VFMACCVF_FLOAT(vres7, *(ptrbb + 7), va7, vl);
                ptrbb += 8;
            }

            for (k = temp&7; k > 0; k--) {
                va0 = VLEV_FLOAT(ptrba, vl); // M:8 (should be vlen);

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va0, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va0, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va0, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va0, vl);
                vres4 = VFMACCVF_FLOAT(vres4, *(ptrbb + 4), va0, vl);
                vres5 = VFMACCVF_FLOAT(vres5, *(ptrbb + 5), va0, vl);
                vres6 = VFMACCVF_FLOAT(vres6, *(ptrbb + 6), va0, vl);
                vres7 = VFMACCVF_FLOAT(vres7, *(ptrbb + 7), va0, vl);

                ptrbb += 8;
                ptrba += vl;
            }

            va0 = VFMULVF_FLOAT(vres0, alpha, vl);
            VSEV_FLOAT(C0, va0, vl);

            va1 = VFMULVF_FLOAT(vres1, alpha, vl);
            VSEV_FLOAT(C1, va1, vl);

            va2 = VFMULVF_FLOAT(vres2, alpha, vl);
            VSEV_FLOAT(C2, va2, vl);

            va3 = VFMULVF_FLOAT(vres3, alpha, vl);
            VSEV_FLOAT(C3, va3, vl);

            va4 = VFMULVF_FLOAT(vres4, alpha, vl);
            VSEV_FLOAT(C4, va4, vl);

            va5 = VFMULVF_FLOAT(vres5, alpha, vl);
            VSEV_FLOAT(C5, va5, vl);

            va6 = VFMULVF_FLOAT(vres6, alpha, vl);
            VSEV_FLOAT(C6, va6, vl);

            va7 = VFMULVF_FLOAT(vres7, alpha, vl);
            VSEV_FLOAT(C7, va7, vl);


#if ( defined(LEFT) && defined(TRANSA)) || (!defined(LEFT) && !defined(TRANSA))
            temp = bk - off;
#ifdef LEFT
            temp -= vl; // number of values in A
#else
            temp -= 8; // number of values in B
#endif
            ptrba += temp*vl;
            ptrbb += temp*8;
#endif

#ifdef LEFT
            off += vl; // number of values in A
#endif

            C0 += vl;
            C1 += vl;
            C2 += vl;
            C3 += vl;
            C4 += vl;
            C5 += vl;
            C6 += vl;
            C7 += vl;
        }

#if defined(TRMMKERNEL) && !defined(LEFT)
        off += 8;
#endif

        bb += (bk<<3);
        C += (ldc<<3);
    }

    if (bn & 4)
    {
        C0 = C;
        C1 = C0+ldc;
        C2 = C1+ldc;
        C3 = C2+ldc;

#if defined(TRMMKERNEL) && defined(LEFT)
        off = offset;
#endif
        ptrba = ba;

        for (i = bm; i > 0; i -= vl)
        {
            vl = VSETVL(i);
#if (defined(LEFT) &&  defined(TRANSA)) || (!defined(LEFT) && !defined(TRANSA))
            ptrbb = bb;
#else
            ptrba += off*vl;
            ptrbb = bb + off*4;
#endif

            vres0 = VFMVVF_FLOAT(0.0, vl);
            vres1 = VFMVVF_FLOAT(0.0, vl);
            vres2 = VFMVVF_FLOAT(0.0, vl);
            vres3 = VFMVVF_FLOAT(0.0, vl);


#if (defined(LEFT) && !defined(TRANSA)) || (!defined(LEFT) && defined(TRANSA))
            temp = bk-off;
#elif defined(LEFT)
            temp = off+vl;  // number of values in A
#else
            temp = off+4;   // number of values in B
#endif

            for (k = temp/8; k > 0; k--) {
                va0 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;
                va1 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va0, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va0, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va0, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va0, vl);
                ptrbb += 4;
                va2 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va1, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va1, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va1, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va1, vl);
                ptrbb += 4;
                va3 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va2, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va2, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va2, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va2, vl);
                ptrbb += 4;
                va4 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va3, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va3, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va3, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va3, vl);
                ptrbb += 4;
                va5 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va4, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va4, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va4, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va4, vl);
                ptrbb += 4;
                va6 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va5, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va5, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va5, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va5, vl);
                ptrbb += 4;
                va7 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va6, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va6, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va6, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va6, vl);
                ptrbb += 4;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va7, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va7, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va7, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va7, vl);
                ptrbb += 4;
            }

            // K remainder
            for (k = temp&7; k > 0; k--) {
                va0 = VLEV_FLOAT(ptrba, vl);

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va0, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va0, vl);
                vres2 = VFMACCVF_FLOAT(vres2, *(ptrbb + 2), va0, vl);
                vres3 = VFMACCVF_FLOAT(vres3, *(ptrbb + 3), va0, vl);

                ptrbb += 4;
                ptrba += vl;
            }

            va0 = VFMULVF_FLOAT(vres0, alpha, vl);
            VSEV_FLOAT(C0, va0, vl);

            va1 = VFMULVF_FLOAT(vres1, alpha, vl);
            VSEV_FLOAT(C1, va1, vl);

            va2 = VFMULVF_FLOAT(vres2, alpha, vl);
            VSEV_FLOAT(C2, va2, vl);

            va3 = VFMULVF_FLOAT(vres3, alpha, vl);
            VSEV_FLOAT(C3, va3, vl);

#if ( defined(LEFT) && defined(TRANSA)) || (!defined(LEFT) && !defined(TRANSA))
            temp = bk - off;
#ifdef LEFT
            temp -= vl; // number of values in A
#else
            temp -= 4; // number of values in B
#endif
            ptrba += temp*vl;
            ptrbb += temp*4;
#endif

#ifdef LEFT
            off += vl; // number of values in A
#endif

            C0 += vl;
            C1 += vl;
            C2 += vl;
            C3 += vl;
        }

#if defined(TRMMKERNEL) && !defined(LEFT)
        off += 4;
#endif

        bb += (bk<<2);
        C += (ldc<<2);
    }

    if (bn & 2)
    {
        C0 = C;
        C1 = C0+ldc;

#if defined(TRMMKERNEL) && defined(LEFT)
        off = offset;
#endif

        ptrba = ba;

        for (i = bm; i > 0; i -= vl) 
        {
            vl = VSETVL(i);

#if (defined(LEFT) &&  defined(TRANSA)) || (!defined(LEFT) && !defined(TRANSA))
            ptrbb = bb;
#else
            ptrba += off*vl;
            ptrbb = bb + off*2;
#endif

            vres0 = VFMVVF_FLOAT(0.0, vl);
            vres1 = VFMVVF_FLOAT(0.0, vl);


#if (defined(LEFT) && !defined(TRANSA)) || (!defined(LEFT) && defined(TRANSA))
            temp = bk-off;
#elif defined(LEFT)
            temp = off+vl;  // number of values in A
#else
            temp = off+2;   // number of values in B
#endif

            for (k = temp/8; k > 0; k--) {
                va0 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;
                va1 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va0, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va0, vl);
                ptrbb += 2;
                va2 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va1, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va1, vl);
                ptrbb += 2;
                va3 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va2, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va2, vl);
                ptrbb += 2;
                va4 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va3, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va3, vl);
                ptrbb += 2;
                va5 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va4, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va4, vl);
                ptrbb += 2;
                va6 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va5, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va5, vl);
                ptrbb += 2;
                va7 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va6, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va6, vl);
                ptrbb += 2;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va7, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va7, vl);
                ptrbb += 2;
            }

            // K remainder
            for (k = temp&7; k > 0; k--) {
                va0 = VLEV_FLOAT(ptrba, vl);

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va0, vl);
                vres1 = VFMACCVF_FLOAT(vres1, *(ptrbb + 1), va0, vl);

                ptrbb += 2;
                ptrba += vl;
            }
            va0 = VFMULVF_FLOAT(vres0, alpha, vl);
            VSEV_FLOAT(C0, va0, vl);

            va1 = VFMULVF_FLOAT(vres1, alpha, vl);
            VSEV_FLOAT(C1, va1, vl);

#if ( defined(LEFT) && defined(TRANSA)) || (!defined(LEFT) && !defined(TRANSA))
            temp = bk - off;
#ifdef LEFT
            temp -= vl; // number of values in A
#else
            temp -= 2; // number of values in B
#endif
            ptrba += temp*vl;
            ptrbb += temp*2;
#endif

#ifdef LEFT
            off += vl; // number of values in A
#endif

            C0 += vl;
            C1 += vl;
        }

#if defined(TRMMKERNEL) && !defined(LEFT)
        off += 2;
#endif

        bb += (bk<<1);
        C += (ldc<<1);
    }

    if (bn & 1)
    {
        C0 = C;

#if defined(TRMMKERNEL) &&  defined(LEFT)
        off = offset;
#endif

        ptrba = ba;

        for (i = bm; i > 0; i -= vl)
        {
            vl = VSETVL(i);
#if (defined(LEFT) &&  defined(TRANSA)) || (!defined(LEFT) && !defined(TRANSA))
            ptrbb = bb;
#else
            ptrba += off*vl;
            ptrbb = bb + off*1;
#endif

            vres0 = VFMVVF_FLOAT(0.0, vl);

#if (defined(LEFT) && !defined(TRANSA)) || (!defined(LEFT) && defined(TRANSA))
            temp = bk-off;
#elif defined(LEFT)
            temp = off+vl;  // number of values in A
#else
            temp = off+1;   // number of values in B
#endif

            for (k = temp/8; k > 0; k--) {
                va0 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;
                va1 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va0, vl);
                ptrbb += 1;
                va2 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va1, vl);
                ptrbb += 1;
                va3 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va2, vl);
                ptrbb += 1;
                va4 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va3, vl);
                ptrbb += 1;
                va5 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va4, vl);
                ptrbb += 1;
                va6 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va5, vl);
                ptrbb += 1;
                va7 = VLEV_FLOAT(ptrba, vl);
                ptrba += vl;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va6, vl);
                ptrbb += 1;

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va7, vl);
                ptrbb += 1;
            }

            // K remainder
            for (k = temp&7; k > 0; k--) {
                va0 = VLEV_FLOAT(ptrba, vl);

                vres0 = VFMACCVF_FLOAT(vres0, *(ptrbb + 0), va0, vl);

                ptrbb += 1;
                ptrba += vl;
            }
            va0 = VFMULVF_FLOAT(vres0, alpha, vl);
            VSEV_FLOAT(C0, va0, vl);

#if ( defined(LEFT) && defined(TRANSA)) || (!defined(LEFT) && !defined(TRANSA))
            temp = bk - off;
#ifdef LEFT
            temp -= vl; // number of values in A
#else
            temp -= 1; // number of values in B
#endif
            ptrba += temp*vl;
            ptrbb += temp*1;
#endif

#ifdef LEFT
            off += vl; // number of values in A
#endif

            C0 += vl;
        }

#if defined(TRMMKERNEL) && !defined(LEFT)
        off += 1;
#endif

        bb += (bk);
        C += (ldc);
    }
    return 0;
}