OpenBLAS/kernel/riscv64/zgemv_n_vector.c

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#include "common.h"
#if !defined(DOUBLE)
#define VSETVL(n) RISCV_RVV(vsetvl_e32m4)(n)
#define FLOAT_V_T vfloat32m4_t
#define VLEV_FLOAT RISCV_RVV(vle32_v_f32m4)
#define VLSEV_FLOAT RISCV_RVV(vlse32_v_f32m4)
#define VSEV_FLOAT RISCV_RVV(vse32_v_f32m4)
#define VSSEV_FLOAT RISCV_RVV(vsse32_v_f32m4)
#define VFMACCVF_FLOAT RISCV_RVV(vfmacc_vf_f32m4)
#define VFNMSACVF_FLOAT RISCV_RVV(vfnmsac_vf_f32m4)
#else
#define VSETVL(n) RISCV_RVV(vsetvl_e64m4)(n)
#define FLOAT_V_T vfloat64m4_t
#define VLEV_FLOAT RISCV_RVV(vle64_v_f64m4)
#define VLSEV_FLOAT RISCV_RVV(vlse64_v_f64m4)
#define VSEV_FLOAT RISCV_RVV(vse64_v_f64m4)
#define VSSEV_FLOAT RISCV_RVV(vsse64_v_f64m4)
#define VFMACCVF_FLOAT RISCV_RVV(vfmacc_vf_f64m4)
#define VFNMSACVF_FLOAT RISCV_RVV(vfnmsac_vf_f64m4)
#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 = 0.0, temp_i = 0.0;
        FLOAT_V_T va0, va1, vy0, vy1;
        unsigned int gvl = 0;
        BLASLONG stride_a = sizeof(FLOAT) * 2;
        BLASLONG stride_y = inc_y * sizeof(FLOAT) * 2;
        gvl = VSETVL(m);
        BLASLONG inc_yv = inc_y * gvl * 2;
        BLASLONG inc_x2 = inc_x * 2;
        BLASLONG lda2 = lda * 2;
        for(k=0,j=0; k<m/gvl; k++){
                a_ptr = a;
                ix = 0;
                vy0 = VLSEV_FLOAT(&y[iy], stride_y, gvl);
                vy1 = VLSEV_FLOAT(&y[iy+1], stride_y, gvl);
                for(i = 0; i < n; i++){
#if !defined(XCONJ)
			temp_r = alpha_r * x[ix]   - alpha_i * x[ix+1];
			temp_i = alpha_r * x[ix+1] + alpha_i * x[ix];
#else
			temp_r = alpha_r * x[ix]   + alpha_i * x[ix+1];
			temp_i = alpha_r * x[ix+1] - alpha_i * x[ix];
#endif

                        va0 = VLSEV_FLOAT(&a_ptr[j], stride_a, gvl);
                        va1 = VLSEV_FLOAT(&a_ptr[j+1], stride_a, gvl);
#if !defined(CONJ)
#if !defined(XCONJ)
			vy0 = VFMACCVF_FLOAT(vy0, temp_r, va0, gvl);
			vy0 = VFNMSACVF_FLOAT(vy0, temp_i, va1, gvl);
			vy1 = VFMACCVF_FLOAT(vy1, temp_r, va1, gvl);
			vy1 = VFMACCVF_FLOAT(vy1, temp_i, va0, gvl);
#else

			vy0 = VFMACCVF_FLOAT(vy0, temp_r, va0, gvl);
			vy0 = VFMACCVF_FLOAT(vy0, temp_i, va1, gvl);
			vy1 = VFMACCVF_FLOAT(vy1, temp_r, va1, gvl);
			vy1 = VFNMSACVF_FLOAT(vy1, temp_i, va0, gvl);
#endif

#else

#if !defined(XCONJ)
			vy0 = VFMACCVF_FLOAT(vy0, temp_r, va0, gvl);
			vy0 = VFMACCVF_FLOAT(vy0, temp_i, va1, gvl);
			vy1 = VFNMSACVF_FLOAT(vy1, temp_r, va1, gvl);
			vy1 = VFMACCVF_FLOAT(vy1, temp_i, va0, gvl);
#else
			vy0 = VFMACCVF_FLOAT(vy0, temp_r, va0, gvl);
			vy0 = VFNMSACVF_FLOAT(vy0, temp_i, va1, gvl);
			vy1 = VFNMSACVF_FLOAT(vy1, temp_r, va1, gvl);
			vy1 = VFNMSACVF_FLOAT(vy1, temp_i, va0, gvl);
#endif

#endif
                        a_ptr += lda2;
                        ix += inc_x2;
                }
                VSSEV_FLOAT(&y[iy], stride_y, vy0, gvl);
                VSSEV_FLOAT(&y[iy+1], stride_y, vy1, gvl);
                j += gvl * 2;
                iy += inc_yv;
        }
        //tail
        if(j/2 < m){
                gvl = VSETVL(m-j/2);
                a_ptr = a;
                ix = 0;
                vy0 = VLSEV_FLOAT(&y[iy], stride_y, gvl);
                vy1 = VLSEV_FLOAT(&y[iy+1], stride_y, gvl);
                for(i = 0; i < n; i++){
#if !defined(XCONJ)
			temp_r = alpha_r * x[ix]   - alpha_i * x[ix+1];
			temp_i = alpha_r * x[ix+1] + alpha_i * x[ix];
#else
			temp_r = alpha_r * x[ix]   + alpha_i * x[ix+1];
			temp_i = alpha_r * x[ix+1] - alpha_i * x[ix];
#endif

                        va0 = VLSEV_FLOAT(&a_ptr[j], stride_a, gvl);
                        va1 = VLSEV_FLOAT(&a_ptr[j+1], stride_a, gvl);
#if !defined(CONJ)

#if !defined(XCONJ)
			vy0 = VFMACCVF_FLOAT(vy0, temp_r, va0, gvl);
			vy0 = VFNMSACVF_FLOAT(vy0, temp_i, va1, gvl);
			vy1 = VFMACCVF_FLOAT(vy1, temp_r, va1, gvl);
			vy1 = VFMACCVF_FLOAT(vy1, temp_i, va0, gvl);
#else

			vy0 = VFMACCVF_FLOAT(vy0, temp_r, va0, gvl);
			vy0 = VFMACCVF_FLOAT(vy0, temp_i, va1, gvl);
			vy1 = VFMACCVF_FLOAT(vy1, temp_r, va1, gvl);
			vy1 = VFNMSACVF_FLOAT(vy1, temp_i, va0, gvl);
#endif

#else

#if !defined(XCONJ)
			vy0 = VFMACCVF_FLOAT(vy0, temp_r, va0, gvl);
			vy0 = VFMACCVF_FLOAT(vy0, temp_i, va1, gvl);
			vy1 = VFNMSACVF_FLOAT(vy1, temp_r, va1, gvl);
			vy1 = VFMACCVF_FLOAT(vy1, temp_i, va0, gvl);
#else
			vy0 = VFMACCVF_FLOAT(vy0, temp_r, va0, gvl);
			vy0 = VFNMSACVF_FLOAT(vy0, temp_i, va1, gvl);
			vy1 = VFNMSACVF_FLOAT(vy1, temp_r, va1, gvl);
			vy1 = VFNMSACVF_FLOAT(vy1, temp_i, va0, gvl);
#endif

#endif
                        a_ptr += lda2;
                        ix += inc_x2;
                }
                VSSEV_FLOAT(&y[iy], stride_y, vy0, gvl);
                VSSEV_FLOAT(&y[iy+1], stride_y, vy1, gvl);
        }
	return(0);
}