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*****************************************************************************/

#include "common.h"

#if !defined(DOUBLE)
#define VSETVL(n) vsetvl_e32m4(n)
#define FLOAT_V_T vfloat32m4_t
#define VLSEV_FLOAT vlse32_v_f32m4
#define VSSEV_FLOAT vsse32_v_f32m4
#define VFMACCVF_FLOAT vfmacc_vf_f32m4
#define VFMVVF_FLOAT vfmv_v_f_f32m4
#define VFMULVF_FLOAT vfmul_vf_f32m4
#define VFMSACVF_FLOAT vfmsac_vf_f32m4
#define VFNMSACVF_FLOAT vfnmsac_vf_f32m4
#else
#define VSETVL(n) vsetvl_e64m4(n)
#define FLOAT_V_T vfloat64m4_t
#define VLSEV_FLOAT vlse64_v_f64m4
#define VSSEV_FLOAT vsse64_v_f64m4
#define VFMACCVF_FLOAT vfmacc_vf_f64m4
#define VFMVVF_FLOAT vfmv_v_f_f64m4
#define VFMULVF_FLOAT vfmul_vf_f64m4
#define VFMSACVF_FLOAT vfmsac_vf_f64m4
#define VFNMSACVF_FLOAT vfnmsac_vf_f64m4
#endif

int CNAME(BLASLONG n, FLOAT alpha_r, FLOAT alpha_i, FLOAT *x, BLASLONG inc_x, FLOAT beta_r, FLOAT beta_i, FLOAT *y, BLASLONG inc_y)
{
	if (n <= 0)  return(0);

	BLASLONG i=0, j=0;
	unsigned int gvl = 0;
	FLOAT_V_T vx0, vx1;
        FLOAT_V_T vy0, vy1;

	BLASLONG stride_x, stride_y, ix = 0, iy = 0;
        stride_x = inc_x * 2 * sizeof(FLOAT);
        stride_y = inc_y * 2 * sizeof(FLOAT);

        if(beta_r == 0.0 && beta_i == 0.0){
                if(alpha_r == 0.0 && alpha_i == 0.0){
                        if(inc_y == 1){
                                memset(&y[0], 0, 2 * n * sizeof(FLOAT));
                        }else{
                                gvl = VSETVL(n);
                                if(gvl <= n/2){
                                        vy0 = VFMVVF_FLOAT(0.0, gvl);
                                        BLASLONG inc_yv = inc_y * gvl * 2;
                                        for(i=0,j=0;i<n/(gvl*2);i++){
                                                VSSEV_FLOAT(&y[iy], stride_y, vy0, gvl);
                                                VSSEV_FLOAT(&y[iy+1], stride_y, vy0, gvl);
                                                VSSEV_FLOAT(&y[iy+inc_yv], stride_y, vy0, gvl);
                                                VSSEV_FLOAT(&y[iy+1+inc_yv], stride_y, vy0, gvl);
                                                j += gvl * 2;
                                                iy += inc_yv * 2;
                                        }
                                }
                                for(;j<n;){
                                        gvl = VSETVL(n-j);
                                        vy0 = VFMVVF_FLOAT(0.0, gvl);
                                        VSSEV_FLOAT(&y[iy], stride_y, vy0, gvl);
                                        VSSEV_FLOAT(&y[iy+1], stride_y, vy0, gvl);
                                        j += gvl;
                                        iy += inc_y * gvl * 2;
                                }
                        }
		}else{
                        gvl = VSETVL(n);
                        BLASLONG inc_xv = inc_x * gvl * 2;
                        BLASLONG inc_yv = inc_y * gvl * 2;
                        for(i=0,j=0; i<n/gvl; i++){
                                vx0 = VLSEV_FLOAT(&x[ix], stride_x, gvl);
                                vx1 = VLSEV_FLOAT(&x[ix+1], stride_x, gvl);
                                vy0 = VFMULVF_FLOAT(vx1, alpha_i, gvl);
                                vy0 = VFMSACVF_FLOAT(vy0, alpha_r, vx0, gvl);
                                VSSEV_FLOAT(&y[iy], stride_y, vy0, gvl);
                                vy1 = VFMULVF_FLOAT(vx1, alpha_r, gvl);
                                vy1 = VFMACCVF_FLOAT(vy1, alpha_i, vx0, gvl);
                                VSSEV_FLOAT(&y[iy+1], stride_y, vy1, gvl);

                                j += gvl;
                                ix += inc_xv;
                                iy += inc_yv;
                        }
                        if(j<n){
                                gvl = VSETVL(n-j);
                                vx0 = VLSEV_FLOAT(&x[ix], stride_x, gvl);
                                vx1 = VLSEV_FLOAT(&x[ix+1], stride_x, gvl);
                                vy0 = VFMULVF_FLOAT(vx1, alpha_i, gvl);
                                vy0 = VFMSACVF_FLOAT(vy0, alpha_r, vx0, gvl);
                                VSSEV_FLOAT(&y[iy], stride_y, vy0, gvl);
                                vy1 = VFMULVF_FLOAT(vx1, alpha_r, gvl);
                                vy1 = VFMACCVF_FLOAT(vy1, alpha_i, vx0, gvl);
                                VSSEV_FLOAT(&y[iy+1], stride_y, vy1, gvl);
                        }
                }
        }else{
	        FLOAT_V_T v0, v1;
                if(alpha_r == 0.0 && alpha_i == 0.0){
                        gvl = VSETVL(n);
                        BLASLONG inc_yv = inc_y * gvl * 2;
                        for(i=0,j=0;i<n/gvl;i++){
                                vy0 = VLSEV_FLOAT(&y[iy], stride_y, gvl);
                                vy1 = VLSEV_FLOAT(&y[iy+1], stride_y, gvl);
                                v0 = VFMULVF_FLOAT(vy1, beta_i, gvl);
                                v0 = VFMSACVF_FLOAT(v0, beta_r, vy0, gvl);
                                VSSEV_FLOAT(&y[iy], stride_y, v0, gvl);
                                v1 = VFMULVF_FLOAT(vy1, beta_r, gvl);
                                v1 = VFMACCVF_FLOAT(v1, beta_i, vy0, gvl);
                                VSSEV_FLOAT(&y[iy+1], stride_y, v1, gvl);
                                j += gvl;
                                iy += inc_yv;
                        }
                        if(j<n){
                                gvl = VSETVL(n-j);
                                vy0 = VLSEV_FLOAT(&y[iy], stride_y, gvl);
                                vy1 = VLSEV_FLOAT(&y[iy+1], stride_y, gvl);
                                v0 = VFMULVF_FLOAT(vy1, beta_i, gvl);
                                v0 = VFMSACVF_FLOAT(v0, beta_r, vy0, gvl);
                                VSSEV_FLOAT(&y[iy], stride_y, v0, gvl);
                                v1 = VFMULVF_FLOAT(vy1, beta_r, gvl);
                                v1 = VFMACCVF_FLOAT(v1, beta_i, vy0, gvl);
                                VSSEV_FLOAT(&y[iy+1], stride_y, v1, gvl);
                        }
		}else{
                        gvl = VSETVL(n);
                        BLASLONG inc_xv = inc_x * gvl * 2;
                        BLASLONG inc_yv = inc_y * gvl * 2;
                        for(i=0,j=0; i<n/gvl; i++){
                                vx0 = VLSEV_FLOAT(&x[ix], stride_x, gvl);
                                vx1 = VLSEV_FLOAT(&x[ix+1], stride_x, gvl);
                                vy0 = VLSEV_FLOAT(&y[iy], stride_y, gvl);
                                vy1 = VLSEV_FLOAT(&y[iy+1], stride_y, gvl);
                                v0 = VFMULVF_FLOAT(vx0, alpha_r, gvl);
                                v0 = VFNMSACVF_FLOAT(v0, alpha_i, vx1, gvl);
                                v0 = VFMACCVF_FLOAT(v0, beta_r, vy0, gvl);
                                v0 = VFNMSACVF_FLOAT(v0, beta_i, vy1, gvl);
                                VSSEV_FLOAT(&y[iy], stride_y, v0, gvl);
                                v1 = VFMULVF_FLOAT(vx1, alpha_r, gvl);
                                v1 = VFMACCVF_FLOAT(v1, alpha_i, vx0, gvl);
                                v1 = VFMACCVF_FLOAT(v1, beta_r, vy1, gvl);
                                v1 = VFMACCVF_FLOAT(v1, beta_i, vy0, gvl);
                                VSSEV_FLOAT(&y[iy+1], stride_y, v1, gvl);

                                j += gvl;
                                ix += inc_xv;
                                iy += inc_yv;
                        }
                        if(j<n){
                                gvl = VSETVL(n-j);
                                vx0 = VLSEV_FLOAT(&x[ix], stride_x, gvl);
                                vx1 = VLSEV_FLOAT(&x[ix+1], stride_x, gvl);
                                vy0 = VLSEV_FLOAT(&y[iy], stride_y, gvl);
                                vy1 = VLSEV_FLOAT(&y[iy+1], stride_y, gvl);
                                v0 = VFMULVF_FLOAT(vx0, alpha_r, gvl);
                                v0 = VFNMSACVF_FLOAT(v0, alpha_i, vx1, gvl);
                                v0 = VFMACCVF_FLOAT(v0, beta_r, vy0, gvl);
                                v0 = VFNMSACVF_FLOAT(v0, beta_i, vy1, gvl);
                                VSSEV_FLOAT(&y[iy], stride_y, v0, gvl);
                                v1 = VFMULVF_FLOAT(vx1, alpha_r, gvl);
                                v1 = VFMACCVF_FLOAT(v1, alpha_i, vx0, gvl);
                                v1 = VFMACCVF_FLOAT(v1, beta_r, vy1, gvl);
                                v1 = VFMACCVF_FLOAT(v1, beta_i, vy0, gvl);
                                VSSEV_FLOAT(&y[iy+1], stride_y, v1, gvl);
                        }
                }
        }
	return(0);
}

