OpenBLAS/kernel/riscv64/zgemv_t_vector.c

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#include "common.h"
#if !defined(DOUBLE)
#define RVV_EFLOAT RVV_E32
#define RVV_M RVV_M4
#define FLOAT_V_T float32xm4_t
#define VLSEV_FLOAT vlsev_float32xm4
#define VFREDSUM_FLOAT vfredsumvs_float32xm4
#define VFMACCVV_FLOAT vfmaccvv_float32xm4
#define VFNMSACVV_FLOAT vfnmsacvv_float32xm4
#define VFMVVF_FLOAT vfmvvf_float32xm4
#define VFMULVV_FLOAT vfmulvv_float32xm4
#else
#define RVV_EFLOAT RVV_E64
#define RVV_M RVV_M4
#define FLOAT_V_T float64xm4_t
#define VLSEV_FLOAT vlsev_float64xm4
#define VFREDSUM_FLOAT vfredsumvs_float64xm4
#define VFMACCVV_FLOAT vfmaccvv_float64xm4
#define VFNMSACVV_FLOAT vfnmsacvv_float64xm4
#define VFMVVF_FLOAT vfmvvf_float64xm4
#define VFMULVV_FLOAT vfmulvv_float64xm4
#endif

int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha_r, FLOAT alpha_i, FLOAT *a, BLASLONG lda, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *buffer)
{
	BLASLONG i = 0, j = 0, k = 0;
	BLASLONG ix = 0, iy = 0;
	FLOAT *a_ptr = a;
        FLOAT temp_r, temp_i;

        FLOAT_V_T va0, va1, vx0, vx1, vr, vi;
        unsigned int gvl = 0;
        BLASLONG stride_x = inc_x * sizeof(FLOAT) * 2;
        BLASLONG stride_a = sizeof(FLOAT) * 2;
        gvl = vsetvli(m, RVV_EFLOAT, RVV_M);
        BLASLONG inc_xv = inc_x * gvl * 2;
        BLASLONG inc_av = gvl * 2;
        BLASLONG inc_y2 = inc_y * 2;
        BLASLONG lda2 = lda * 2;
        for(i = 0; i < n; i++){
                gvl = vsetvli(m, RVV_EFLOAT, RVV_M);
                j = 0;
                ix = 0;
                vr = VFMVVF_FLOAT(0, gvl);
                vi = VFMVVF_FLOAT(0, gvl);
                for(k = 0; k < m/gvl; k++){
                        va0 = VLSEV_FLOAT(&a_ptr[j], stride_a, gvl);
                        va1 = VLSEV_FLOAT(&a_ptr[j+1], stride_a, gvl);
                        vx0 = VLSEV_FLOAT(&x[ix], stride_x, gvl);
                        vx1 = VLSEV_FLOAT(&x[ix+1], stride_x, gvl);
#if ( !defined(CONJ) && !defined(XCONJ) ) || ( defined(CONJ) && defined(XCONJ) )
                        vr = VFMACCVV_FLOAT(vr, va0, vx0, gvl);
                        vr = VFNMSACVV_FLOAT(vr, va1, vx1, gvl);
                        vi = VFMACCVV_FLOAT(vi, va0, vx1, gvl);
                        vi = VFMACCVV_FLOAT(vi, va1, vx0, gvl);
#else
                        vr = VFMACCVV_FLOAT(vr, va0, vx0, gvl);
                        vr = VFMACCVV_FLOAT(vr, va1, vx1, gvl);
                        vi = VFMACCVV_FLOAT(vi, va0, vx1, gvl);
                        vi = VFNMSACVV_FLOAT(vi, va1, vx0, gvl);

#endif
                        j += inc_av;
                        ix += inc_xv;
                }
                va0 = VFMVVF_FLOAT(0, gvl);
                vx0 = VFREDSUM_FLOAT(vr, va0, gvl);
                temp_r = vx0[0];
                vx1 = VFREDSUM_FLOAT(vi, va0, gvl);
                temp_i = vx1[0];
                if(j/2 < m){
                        gvl = vsetvli(m-j/2, RVV_EFLOAT, RVV_M);
                        va0 = VLSEV_FLOAT(&a_ptr[j], stride_a, gvl);
                        va1 = VLSEV_FLOAT(&a_ptr[j+1], stride_a, gvl);
                        vx0 = VLSEV_FLOAT(&x[ix], stride_x, gvl);
                        vx1 = VLSEV_FLOAT(&x[ix+1], stride_x, gvl);
#if ( !defined(CONJ) && !defined(XCONJ) ) || ( defined(CONJ) && defined(XCONJ) )
                        vr = VFMULVV_FLOAT(va0, vx0, gvl);
                        vr = VFNMSACVV_FLOAT(vr, va1, vx1, gvl);
                        vi = VFMULVV_FLOAT(va0, vx1, gvl);
                        vi = VFMACCVV_FLOAT(vi, va1, vx0, gvl);
#else
                        vr = VFMULVV_FLOAT(va0, vx0, gvl);
                        vr = VFMACCVV_FLOAT(vr, va1, vx1, gvl);
                        vi = VFMULVV_FLOAT(va0, vx1, gvl);
                        vi = VFNMSACVV_FLOAT(vi, va1, vx0, gvl);

#endif
                        va0 = VFMVVF_FLOAT(0, gvl);
                        vx0 = VFREDSUM_FLOAT(vr, va0, gvl);
                        temp_r += vx0[0];
                        vx1 = VFREDSUM_FLOAT(vi, va0, gvl);
                        temp_i += vx1[0];
                }
#if !defined(XCONJ)
                y[iy]   += alpha_r * temp_r - alpha_i * temp_i;
                y[iy+1] += alpha_r * temp_i + alpha_i * temp_r;
#else
                y[iy]   += alpha_r * temp_r + alpha_i * temp_i;
                y[iy+1] -= alpha_r * temp_i - alpha_i * temp_r;
#endif
                iy += inc_y2;
                a_ptr += lda2;
        }
	return(0);
}