184 lines
6.2 KiB
C
184 lines
6.2 KiB
C
/***************************************************************************
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Copyright (c) 2013-2017, 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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#define PREFETCH_INS 1
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#if defined(Z13_A)
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#include <vecintrin.h>
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static void daxpy_kernel_32(BLASLONG n, FLOAT *x, FLOAT *y, FLOAT alpha)
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{
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BLASLONG i = 0;
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__vector double v_a = {alpha,alpha};
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__vector double * v_y=(__vector double *)y;
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__vector double * v_x=(__vector double *)x;
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for(; i<n/2; i+=16){
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v_y[i] += v_a * v_x[i];
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v_y[i+1] += v_a * v_x[i+1];
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v_y[i+2] += v_a * v_x[i+2];
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v_y[i+3] += v_a * v_x[i+3];
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v_y[i+4] += v_a * v_x[i+4];
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v_y[i+5] += v_a * v_x[i+5];
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v_y[i+6] += v_a * v_x[i+6];
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v_y[i+7] += v_a * v_x[i+7];
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v_y[i+8] += v_a * v_x[i+8];
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v_y[i+9] += v_a * v_x[i+9];
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v_y[i+10] += v_a * v_x[i+10];
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v_y[i+11] += v_a * v_x[i+11];
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v_y[i+12] += v_a * v_x[i+12];
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v_y[i+13] += v_a * v_x[i+13];
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v_y[i+14] += v_a * v_x[i+14];
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v_y[i+15] += v_a * v_x[i+15];
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}
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}
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#else
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static void daxpy_kernel_32(BLASLONG n, FLOAT *x, FLOAT *y, FLOAT alpha)
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{
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__asm__ volatile(
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#if defined(PREFETCH_INS)
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"pfd 1, 0(%[x_tmp]) \n\t"
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"pfd 2, 0(%[y_tmp]) \n\t"
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#endif
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"lgdr %%r0,%[alpha] \n\t"
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"vlvgp %%v0,%%r0,%%r0 \n\t"
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"srlg %%r0,%[n],5 \n\t"
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"vlr %%v1,%%v0 \n\t"
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".align 16 \n\t"
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"1: \n\t"
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#if defined(PREFETCH_INS)
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"pfd 1, 256(%[x_tmp]) \n\t"
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"pfd 2, 256(%[y_tmp]) \n\t"
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#endif
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"vlm %%v16,%%v23, 0(%[x_tmp]) \n\t"
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"vlm %%v24, %%v31, 0(%[y_tmp]) \n\t"
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"vfmadb %%v16,%%v0,%%v16,%%v24 \n\t"
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"vfmadb %%v17,%%v1,%%v17,%%v25 \n\t"
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"vfmadb %%v18,%%v0,%%v18,%%v26 \n\t"
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"vfmadb %%v19,%%v1,%%v19,%%v27 \n\t"
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"vfmadb %%v20,%%v0,%%v20,%%v28 \n\t"
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"vfmadb %%v21,%%v1,%%v21,%%v29 \n\t"
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"vfmadb %%v22,%%v0,%%v22,%%v30 \n\t"
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"vfmadb %%v23,%%v1,%%v23,%%v31 \n\t"
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"vstm %%v16,%%v23, 0(%[y_tmp]) \n\t"
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"vlm %%v24,%%v31, 128(%[x_tmp]) \n\t"
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"vlm %%v16,%%v23, 128(%[y_tmp]) \n\t"
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"vfmadb %%v24,%%v0,%%v24,%%v16 \n\t"
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"vfmadb %%v25,%%v1,%%v25,%%v17 \n\t"
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"vfmadb %%v26,%%v0,%%v26,%%v18 \n\t"
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"vfmadb %%v27,%%v1,%%v27,%%v19 \n\t"
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"vfmadb %%v28,%%v0,%%v28,%%v20 \n\t"
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"vfmadb %%v29,%%v1,%%v29,%%v21 \n\t"
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"vfmadb %%v30,%%v0,%%v30,%%v22 \n\t"
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"vfmadb %%v31,%%v1,%%v31,%%v23 \n\t"
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"la %[x_tmp],256(%[x_tmp]) \n\t"
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"vstm %%v24, %%v31, 128(%[y_tmp]) \n\t"
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"la %[y_tmp],256(%[y_tmp]) \n\t"
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"brctg %%r0,1b"
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: [mem_y] "+m" (*(double (*)[n])y), [x_tmp] "+&a"(x), [y_tmp] "+&a"(y)
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: [mem_x] "m" (*(const double (*)[n])x), [n] "r"(n), [alpha] "f"(alpha)
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:"cc", "r0", "v0","v1","v16","v17","v18","v19","v20","v21",
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"v22","v23","v24","v25","v26","v27","v28","v29","v30","v31"
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);
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}
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#endif
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int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *dummy, BLASLONG dummy2)
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{
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BLASLONG i=0;
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BLASLONG ix=0,iy=0;
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if ( n <= 0 ) return 0 ;
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if ( (inc_x == 1) && (inc_y == 1) )
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{
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BLASLONG n1 = n & -32;
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if ( n1 )
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daxpy_kernel_32(n1, x, y , da );
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i = n1;
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while(i < n)
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{
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y[i] += da * x[i] ;
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i++ ;
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}
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return 0 ;
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}
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BLASLONG n1 = n & -4;
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while(i < n1)
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{
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FLOAT m1 = da * x[ix] ;
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FLOAT m2 = da * x[ix+inc_x] ;
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FLOAT m3 = da * x[ix+2*inc_x] ;
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FLOAT m4 = da * x[ix+3*inc_x] ;
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y[iy] += m1 ;
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y[iy+inc_y] += m2 ;
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y[iy+2*inc_y] += m3 ;
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y[iy+3*inc_y] += m4 ;
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ix += inc_x*4 ;
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iy += inc_y*4 ;
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i+=4 ;
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}
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while(i < n)
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{
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y[iy] += da * x[ix] ;
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ix += inc_x ;
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iy += inc_y ;
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i++ ;
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}
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return 0 ;
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}
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