172 lines
6.7 KiB
C
172 lines
6.7 KiB
C
/***************************************************************************
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Copyright (c) 2022, The OpenBLAS Project
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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3. Neither the name of the OpenBLAS project nor the names of
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its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#include "common.h"
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#if !defined(DOUBLE)
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#define VSETVL(n) __riscv_vsetvl_e32m4(n)
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#define VSETVL_MAX_M1 __riscv_vsetvlmax_e32m1()
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#define FLOAT_V_T vfloat32m4_t
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#define FLOAT_V_T_M1 vfloat32m1_t
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#define VLSEG_FLOAT __riscv_vlseg2e32_v_f32m4
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#define VLSSEG_FLOAT __riscv_vlsseg2e32_v_f32m4
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#define VFREDSUM_FLOAT __riscv_vfredusum_vs_f32m4_f32m1
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#define VFMACCVV_FLOAT __riscv_vfmacc_vv_f32m4
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#define VFNMSACVV_FLOAT __riscv_vfnmsac_vv_f32m4
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#define VFMVVF_FLOAT __riscv_vfmv_v_f_f32m4
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#define VFMVVF_FLOAT_M1 __riscv_vfmv_v_f_f32m1
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#define VFMULVV_FLOAT __riscv_vfmul_vv_f32m4
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#define VFMVFS_FLOAT_M1 __riscv_vfmv_f_s_f32m1_f32
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#else
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#define VSETVL(n) __riscv_vsetvl_e64m4(n)
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#define VSETVL_MAX_M1 __riscv_vsetvlmax_e64m1()
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#define FLOAT_V_T vfloat64m4_t
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#define FLOAT_V_T_M1 vfloat64m1_t
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#define VLSEG_FLOAT __riscv_vlseg2e64_v_f64m4
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#define VLSSEG_FLOAT __riscv_vlsseg2e64_v_f64m4
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#define VFREDSUM_FLOAT __riscv_vfredusum_vs_f64m4_f64m1
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#define VFMACCVV_FLOAT __riscv_vfmacc_vv_f64m4
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#define VFNMSACVV_FLOAT __riscv_vfnmsac_vv_f64m4
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#define VFMVVF_FLOAT __riscv_vfmv_v_f_f64m4
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#define VFMVVF_FLOAT_M1 __riscv_vfmv_v_f_f64m1
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#define VFMULVV_FLOAT __riscv_vfmul_vv_f64m4
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#define VFMVFS_FLOAT_M1 __riscv_vfmv_f_s_f64m1_f64
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#endif
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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)
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{
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BLASLONG i = 0, j = 0;
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BLASLONG ix = 0, iy = 0;
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FLOAT *a_ptr = a;
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FLOAT temp_r, temp_i;
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FLOAT_V_T va0, va1, vx0, vx1, vr, vi;
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FLOAT_V_T_M1 v_res, v_z0;
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BLASLONG stride_x = inc_x * sizeof(FLOAT) * 2;
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//BLASLONG stride_a = sizeof(FLOAT) * 2;
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BLASLONG inc_y2 = inc_y * 2;
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BLASLONG lda2 = lda * 2;
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size_t vlmax = VSETVL_MAX_M1;
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v_z0 = VFMVVF_FLOAT_M1(0, vlmax);
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vlmax = VSETVL(m);
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if (inc_x == 1)
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{
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for(i = 0; i < n; i++) {
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j = 0;
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ix = 0;
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vr = VFMVVF_FLOAT(0, vlmax);
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vi = VFMVVF_FLOAT(0, vlmax);
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for(size_t vl, k = m; k > 0; k -= vl) {
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vl = VSETVL(k);
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VLSEG_FLOAT(&va0, &va1, &a_ptr[j], vl);
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VLSEG_FLOAT(&vx0, &vx1, &x[ix], vl);
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#if ( !defined(CONJ) && !defined(XCONJ) ) || ( defined(CONJ) && defined(XCONJ) )
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vr = VFMACCVV_FLOAT(vr, va0, vx0, vl);
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vr = VFNMSACVV_FLOAT(vr, va1, vx1, vl);
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vi = VFMACCVV_FLOAT(vi, va0, vx1, vl);
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vi = VFMACCVV_FLOAT(vi, va1, vx0, vl);
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#else
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vr = VFMACCVV_FLOAT(vr, va0, vx0, vl);
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vr = VFMACCVV_FLOAT(vr, va1, vx1, vl);
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vi = VFMACCVV_FLOAT(vi, va0, vx1, vl);
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vi = VFNMSACVV_FLOAT(vi, va1, vx0, vl);
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#endif
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j += vl * 2;
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ix += vl * inc_x * 2;
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}
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v_res = VFREDSUM_FLOAT(vr, v_z0, vlmax);
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temp_r = VFMVFS_FLOAT_M1(v_res);
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v_res = VFREDSUM_FLOAT(vi, v_z0, vlmax);
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temp_i = VFMVFS_FLOAT_M1(v_res);
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#if !defined(XCONJ)
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y[iy] += alpha_r * temp_r - alpha_i * temp_i;
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y[iy+1] += alpha_r * temp_i + alpha_i * temp_r;
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#else
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y[iy] += alpha_r * temp_r + alpha_i * temp_i;
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y[iy+1] -= alpha_r * temp_i - alpha_i * temp_r;
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#endif
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iy += inc_y2;
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a_ptr += lda2;
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}
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}
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else
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{
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for(i = 0; i < n; i++) {
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j = 0;
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ix = 0;
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vr = VFMVVF_FLOAT(0, vlmax);
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vi = VFMVVF_FLOAT(0, vlmax);
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for(size_t vl, k = m; k > 0; k -= vl) {
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vl = VSETVL(k);
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VLSEG_FLOAT(&va0, &va1, &a_ptr[j], vl);
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VLSSEG_FLOAT(&vx0, &vx1, &x[ix], stride_x, vl);
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#if ( !defined(CONJ) && !defined(XCONJ) ) || ( defined(CONJ) && defined(XCONJ) )
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vr = VFMACCVV_FLOAT(vr, va0, vx0, vl);
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vr = VFNMSACVV_FLOAT(vr, va1, vx1, vl);
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vi = VFMACCVV_FLOAT(vi, va0, vx1, vl);
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vi = VFMACCVV_FLOAT(vi, va1, vx0, vl);
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#else
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vr = VFMACCVV_FLOAT(vr, va0, vx0, vl);
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vr = VFMACCVV_FLOAT(vr, va1, vx1, vl);
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vi = VFMACCVV_FLOAT(vi, va0, vx1, vl);
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vi = VFNMSACVV_FLOAT(vi, va1, vx0, vl);
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#endif
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j += vl * 2;
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ix += vl * inc_x * 2;
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}
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v_res = VFREDSUM_FLOAT(vr, v_z0, vlmax);
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temp_r = VFMVFS_FLOAT_M1(v_res);
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v_res = VFREDSUM_FLOAT(vi, v_z0, vlmax);
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temp_i = VFMVFS_FLOAT_M1(v_res);
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#if !defined(XCONJ)
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y[iy] += alpha_r * temp_r - alpha_i * temp_i;
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y[iy+1] += alpha_r * temp_i + alpha_i * temp_r;
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#else
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y[iy] += alpha_r * temp_r + alpha_i * temp_i;
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y[iy+1] -= alpha_r * temp_i - alpha_i * temp_r;
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#endif
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iy += inc_y2;
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a_ptr += lda2;
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}
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}
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return(0);
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}
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