224 lines
7.3 KiB
C
224 lines
7.3 KiB
C
/***************************************************************************
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Copyright (c) 2013-2018, 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 offset_0 0
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#define offset_1 16
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#define offset_2 32
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#define offset_3 48
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#define offset_4 64
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#define offset_5 80
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#define offset_6 96
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#define offset_7 112
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#define offset_8 128
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#define offset_9 144
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#define offset_10 160
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#define offset_11 176
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#define offset_12 192
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#define offset_13 208
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#define offset_14 224
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#define offset_15 240
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#if defined(__VEC__) || defined(__ALTIVEC__)
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#ifndef HAVE_KERNEL_8
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#include <altivec.h>
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static void saxpy_kernel_64(BLASLONG n, FLOAT *x, FLOAT *y, FLOAT alpha)
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{
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BLASLONG i = 0;
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__vector float v_a __attribute((aligned(16))) = {alpha,alpha,alpha,alpha};
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__vector float * vptr_y =(__vector float *)y;
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__vector float * vptr_x =(__vector float *)x;
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for(; i<n/4; i+=16){
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register __vector float vy_0 = vec_vsx_ld( offset_0 ,vptr_y ) ;
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register __vector float vy_1 = vec_vsx_ld( offset_1 ,vptr_y ) ;
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register __vector float vy_2 = vec_vsx_ld( offset_2 ,vptr_y ) ;
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register __vector float vy_3 = vec_vsx_ld( offset_3 ,vptr_y ) ;
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register __vector float vy_4 = vec_vsx_ld( offset_4 ,vptr_y ) ;
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register __vector float vy_5 = vec_vsx_ld( offset_5 ,vptr_y ) ;
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register __vector float vy_6 = vec_vsx_ld( offset_6 ,vptr_y ) ;
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register __vector float vy_7 = vec_vsx_ld( offset_7 ,vptr_y ) ;
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register __vector float vy_8 = vec_vsx_ld( offset_8 ,vptr_y ) ;
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register __vector float vy_9 = vec_vsx_ld( offset_9 ,vptr_y ) ;
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register __vector float vy_10 = vec_vsx_ld( offset_10 ,vptr_y ) ;
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register __vector float vy_11 = vec_vsx_ld( offset_11 ,vptr_y ) ;
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register __vector float vy_12 = vec_vsx_ld( offset_12 ,vptr_y ) ;
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register __vector float vy_13 = vec_vsx_ld( offset_13 ,vptr_y ) ;
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register __vector float vy_14 = vec_vsx_ld( offset_14 ,vptr_y ) ;
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register __vector float vy_15 = vec_vsx_ld( offset_15 ,vptr_y ) ;
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register __vector float vx_0 = vec_vsx_ld( offset_0 ,vptr_x ) ;
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register __vector float vx_1 = vec_vsx_ld( offset_1 ,vptr_x ) ;
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register __vector float vx_2 = vec_vsx_ld( offset_2 ,vptr_x ) ;
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register __vector float vx_3 = vec_vsx_ld( offset_3 ,vptr_x ) ;
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register __vector float vx_4 = vec_vsx_ld( offset_4 ,vptr_x ) ;
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register __vector float vx_5 = vec_vsx_ld( offset_5 ,vptr_x ) ;
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register __vector float vx_6 = vec_vsx_ld( offset_6 ,vptr_x ) ;
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register __vector float vx_7 = vec_vsx_ld( offset_7 ,vptr_x ) ;
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register __vector float vx_8 = vec_vsx_ld( offset_8 ,vptr_x ) ;
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register __vector float vx_9 = vec_vsx_ld( offset_9 ,vptr_x ) ;
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register __vector float vx_10 = vec_vsx_ld( offset_10 ,vptr_x ) ;
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register __vector float vx_11 = vec_vsx_ld( offset_11 ,vptr_x ) ;
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register __vector float vx_12 = vec_vsx_ld( offset_12 ,vptr_x ) ;
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register __vector float vx_13 = vec_vsx_ld( offset_13 ,vptr_x ) ;
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register __vector float vx_14 = vec_vsx_ld( offset_14 ,vptr_x ) ;
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register __vector float vx_15 = vec_vsx_ld( offset_15 ,vptr_x ) ;
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vy_0 += vx_0*v_a;
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vy_1 += vx_1*v_a;
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vy_2 += vx_2*v_a;
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vy_3 += vx_3*v_a;
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vy_4 += vx_4*v_a;
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vy_5 += vx_5*v_a;
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vy_6 += vx_6*v_a;
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vy_7 += vx_7*v_a;
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vy_8 += vx_8*v_a;
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vy_9 += vx_9*v_a;
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vy_10 += vx_10*v_a;
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vy_11 += vx_11*v_a;
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vy_12 += vx_12*v_a;
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vy_13 += vx_13*v_a;
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vy_14 += vx_14*v_a;
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vy_15 += vx_15*v_a;
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vec_vsx_st( vy_0, offset_0 ,vptr_y ) ;
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vec_vsx_st( vy_1, offset_1 ,vptr_y ) ;
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vec_vsx_st( vy_2, offset_2 ,vptr_y ) ;
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vec_vsx_st( vy_3, offset_3 ,vptr_y ) ;
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vec_vsx_st( vy_4, offset_4 ,vptr_y ) ;
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vec_vsx_st( vy_5, offset_5 ,vptr_y ) ;
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vec_vsx_st( vy_6, offset_6 ,vptr_y ) ;
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vec_vsx_st( vy_7, offset_7 ,vptr_y ) ;
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vec_vsx_st( vy_8, offset_8 ,vptr_y ) ;
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vec_vsx_st( vy_9, offset_9 ,vptr_y ) ;
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vec_vsx_st( vy_10, offset_10 ,vptr_y ) ;
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vec_vsx_st( vy_11, offset_11 ,vptr_y ) ;
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vec_vsx_st( vy_12, offset_12 ,vptr_y ) ;
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vec_vsx_st( vy_13, offset_13 ,vptr_y ) ;
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vec_vsx_st( vy_14, offset_14 ,vptr_y ) ;
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vec_vsx_st( vy_15, offset_15 ,vptr_y ) ;
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vptr_x+=16;
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vptr_y+=16;
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/*
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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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}
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#endif
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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 & -64;
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#if defined(__VEC__) || defined(__ALTIVEC__)
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if ( n1 )
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saxpy_kernel_64(n1, x, y, da);
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i = n1;
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#endif
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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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