100 lines
3.5 KiB
C
100 lines
3.5 KiB
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
|
|
notice, this list of conditions and the following disclaimer.
|
|
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.
|
|
3. Neither the name of the OpenBLAS project nor the names of
|
|
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
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
|
|
USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*****************************************************************************/
|
|
|
|
#include "common.h"
|
|
|
|
#if !defined(DOUBLE)
|
|
#define VSETVL(n) vsetvl_e32m8(n)
|
|
#define VSETVL_MAX vsetvlmax_e32m8()
|
|
#define VSETVL_MAX_M1 vsetvlmax_e32m1()
|
|
#define FLOAT_V_T vfloat32m8_t
|
|
#define FLOAT_V_T_M1 vfloat32m1_t
|
|
#define VLEV_FLOAT vle32_v_f32m8
|
|
#define VLSEV_FLOAT vlse32_v_f32m8
|
|
#define VFMVVF_FLOAT vfmv_v_f_f32m8
|
|
#define VFADDVV_FLOAT vfadd_vv_f32m8
|
|
#define VFABSV_FLOAT vfabs_v_f32m8
|
|
#define VFREDSUMVS_FLOAT vfredusum_vs_f32m8_f32m1
|
|
#define VFMVVF_FLOAT_M1 vfmv_v_f_f32m1
|
|
#define VFMVFS_FLOAT_M1 vfmv_f_s_f32m1_f32
|
|
#else
|
|
#define VSETVL(n) vsetvl_e64m8(n)
|
|
#define VSETVL_MAX vsetvlmax_e64m8()
|
|
#define VSETVL_MAX_M1 vsetvlmax_e64m1()
|
|
#define FLOAT_V_T vfloat64m8_t
|
|
#define FLOAT_V_T_M1 vfloat64m1_t
|
|
#define VLEV_FLOAT vle64_v_f64m8
|
|
#define VLSEV_FLOAT vlse64_v_f64m8
|
|
#define VFMVVF_FLOAT vfmv_v_f_f64m8
|
|
#define VFADDVV_FLOAT vfadd_vv_f64m8
|
|
#define VFABSV_FLOAT vfabs_v_f64m8
|
|
#define VFREDSUMVS_FLOAT vfredusum_vs_f64m8_f64m1
|
|
#define VFMVVF_FLOAT_M1 vfmv_v_f_f64m1
|
|
#define VFMVFS_FLOAT_M1 vfmv_f_s_f64m1_f64
|
|
#endif
|
|
|
|
FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x)
|
|
{
|
|
FLOAT asumf = 0.0;
|
|
if (n <= 0 || inc_x <= 0) return(asumf);
|
|
|
|
FLOAT_V_T vx, vsum;
|
|
FLOAT_V_T_M1 v_res;
|
|
|
|
v_res = VFMVVF_FLOAT_M1(0, VSETVL_MAX_M1);
|
|
size_t vlmax = VSETVL_MAX;
|
|
vsum = VFMVVF_FLOAT(0.0, vlmax);
|
|
|
|
if(inc_x == 1) {
|
|
|
|
for (size_t vl; n > 0; n -= vl, x += vl) {
|
|
vl = VSETVL(n);
|
|
|
|
vx = VLEV_FLOAT(x, vl);
|
|
vx = VFABSV_FLOAT(vx, vl);
|
|
vsum = VFADDVV_FLOAT(vsum, vx, vl);
|
|
}
|
|
|
|
} else {
|
|
|
|
BLASLONG stride_x = inc_x * sizeof(FLOAT);
|
|
|
|
for (size_t vl; n > 0; n -= vl, x += vl*inc_x) {
|
|
vl = VSETVL(n);
|
|
|
|
vx = VLSEV_FLOAT(x, stride_x, vl);
|
|
vx = VFABSV_FLOAT(vx, vl);
|
|
vsum = VFADDVV_FLOAT(vsum, vx, vl);
|
|
}
|
|
|
|
}
|
|
|
|
v_res = VFREDSUMVS_FLOAT(v_res, vsum, v_res, vlmax);
|
|
asumf = VFMVFS_FLOAT_M1(v_res);
|
|
return(asumf);
|
|
}
|