148 lines
6.5 KiB
C
148 lines
6.5 KiB
C
/***************************************************************************
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Copyright (c) 2020, 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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#pragma GCC optimize "O1"
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#include "common.h"
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#if !defined(DOUBLE)
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#define VSETVL(n) vsetvl_e32m8(n)
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#define FLOAT_V_T vfloat32m8_t
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#define VLEV_FLOAT vle32_v_f32m8
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#define VLSEV_FLOAT vlse32_v_f32m8
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#define VSEV_FLOAT vse32_v_f32m8
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#define VSSEV_FLOAT vsse32_v_f32m8
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#else
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#define VSETVL(n) vsetvl_e64m8(n)
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#define FLOAT_V_T vfloat64m8_t
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#define VLEV_FLOAT vle64_v_f64m8
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#define VLSEV_FLOAT vlse64_v_f64m8
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#define VSEV_FLOAT vse64_v_f64m8
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#define VSSEV_FLOAT vsse64_v_f64m8
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#endif
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int CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
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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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if(n < 0) return(0);
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BLASLONG stride_x, stride_y;
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FLOAT_V_T v0, v1, v2, v3;
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unsigned int gvl = 0;
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if(inc_x == 1 && inc_y == 1){
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memcpy(&y[0], &x[0], n*sizeof(FLOAT));
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}else if (inc_y == 1){
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gvl = VSETVL(n);
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stride_x = inc_x * sizeof(FLOAT);
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if(gvl <= n/4){
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BLASLONG inc_xv = inc_x * gvl;
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BLASLONG gvl3 = gvl * 3;
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BLASLONG inc_xv3 = inc_xv * 3;
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for(i=0,j=0; i<n/(4*gvl); i++){
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v0 = VLSEV_FLOAT(&x[ix], stride_x, gvl);
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VSEV_FLOAT(&y[j], v0, gvl);
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v1 = VLSEV_FLOAT(&x[ix+inc_xv], stride_x, gvl);
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VSEV_FLOAT(&y[j+gvl], v1, gvl);
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v2 = VLSEV_FLOAT(&x[ix+inc_xv*2], stride_x, gvl);
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VSEV_FLOAT(&y[j+gvl*2], v2, gvl);
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v3 = VLSEV_FLOAT(&x[ix+inc_xv3], stride_x, gvl);
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VSEV_FLOAT(&y[j+gvl3], v3, gvl);
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j += gvl * 4;
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ix += inc_xv * 4;
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}
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}
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for(;j<n;){
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gvl = VSETVL(n-j);
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v0 = VLSEV_FLOAT(&x[j*inc_x], stride_x, gvl);
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VSEV_FLOAT(&y[j], v0, gvl);
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j += gvl;
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}
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}else if(inc_x == 1){
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gvl = VSETVL(n);
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stride_y = inc_y * sizeof(FLOAT);
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if(gvl <= n/4){
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BLASLONG inc_yv = inc_y * gvl;
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BLASLONG inc_yv3 = inc_yv * 3;
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BLASLONG gvl3 = gvl * 3;
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for(i=0,j=0; i<n/(4*gvl); i++){
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v0 = VLEV_FLOAT(&x[j], gvl);
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VSSEV_FLOAT(&y[iy], stride_y, v0, gvl);
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v1 = VLEV_FLOAT(&x[j+gvl], gvl);
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VSSEV_FLOAT(&y[iy+inc_yv], stride_y, v1, gvl);
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v2 = VLEV_FLOAT(&x[j+gvl*2], gvl);
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VSSEV_FLOAT(&y[iy+inc_yv*2], stride_y, v2, gvl);
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v3 = VLEV_FLOAT(&x[j+gvl3], gvl);
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VSSEV_FLOAT(&y[iy+inc_yv3], stride_y, v3, gvl);
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j += gvl * 4;
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iy += inc_yv * 4;
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}
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}
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for(;j<n;){
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gvl = VSETVL(n-j);
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v0 = VLEV_FLOAT(&x[j], gvl);
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VSSEV_FLOAT(&y[j*inc_y], stride_y, v0, gvl);
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j += gvl;
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}
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}else{
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gvl = VSETVL(n);
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stride_x = inc_x * sizeof(FLOAT);
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stride_y = inc_y * sizeof(FLOAT);
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if(gvl <= n/4){
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BLASLONG inc_xv = inc_x * gvl;
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BLASLONG inc_yv = inc_y * gvl;
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BLASLONG inc_xv3 = inc_xv * 3;
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BLASLONG inc_yv3 = inc_yv * 3;
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for(i=0,j=0; i<n/(4*gvl); i++){
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v0 = VLSEV_FLOAT(&x[ix], stride_x, gvl);
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VSSEV_FLOAT(&y[iy], stride_y, v0, gvl);
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v1 = VLSEV_FLOAT(&x[ix+inc_xv], stride_x, gvl);
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VSSEV_FLOAT(&y[iy+inc_yv], stride_y, v1, gvl);
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v2 = VLSEV_FLOAT(&x[ix+inc_xv*2], stride_x, gvl);
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VSSEV_FLOAT(&y[iy+inc_yv*2], stride_y, v2, gvl);
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v3 = VLSEV_FLOAT(&x[ix+inc_xv3], stride_x, gvl);
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VSSEV_FLOAT(&y[iy+inc_yv3], stride_y, v3, gvl);
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j += gvl * 4;
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ix += inc_xv * 4;
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iy += inc_yv * 4;
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}
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}
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for(;j<n;){
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gvl = VSETVL(n-j);
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v0 = VLSEV_FLOAT(&x[j*inc_x], stride_x, gvl);
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VSSEV_FLOAT(&y[j*inc_y], stride_y, v0, gvl);
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j += gvl;
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}
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}
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return(0);
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}
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