148 lines
3.3 KiB
C
148 lines
3.3 KiB
C
/***************************************************************************
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Copyright (c) 2013-2016, 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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/**************************************************************************************
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* 2016/03/28 Werner Saar (wernsaar@googlemail.com)
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* BLASTEST : OK
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* CTEST : OK
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* TEST : OK
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* LAPACK-TEST : OK
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**************************************************************************************/
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#include "common.h"
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#include <math.h>
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#if defined(DOUBLE)
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#define ABS fabs
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#else
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#define ABS fabsf
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#endif
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#if defined(POWER8) || defined(POWER9) || defined(POWER10)
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#if defined(__VEC__) || defined(__ALTIVEC__)
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#include "casum_microk_power8.c"
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#endif
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#endif
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#ifndef HAVE_KERNEL_16
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static FLOAT casum_kernel_16(BLASLONG n, FLOAT *x1)
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{
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BLASLONG i=0;
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FLOAT *x = x1;
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FLOAT temp0, temp1, temp2, temp3;
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FLOAT temp4, temp5, temp6, temp7;
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FLOAT sum0 = 0.0;
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FLOAT sum1 = 0.0;
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FLOAT sum2 = 0.0;
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FLOAT sum3 = 0.0;
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while ( i< n )
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{
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temp0 = ABS(x[0]);
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temp1 = ABS(x[1]);
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temp2 = ABS(x[2]);
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temp3 = ABS(x[3]);
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temp4 = ABS(x[4]);
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temp5 = ABS(x[5]);
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temp6 = ABS(x[6]);
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temp7 = ABS(x[7]);
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sum0 += temp0;
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sum1 += temp1;
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sum2 += temp2;
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sum3 += temp3;
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sum0 += temp4;
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sum1 += temp5;
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sum2 += temp6;
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sum3 += temp7;
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x+=8;
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i+=4;
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}
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return sum0+sum1+sum2+sum3;
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}
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#endif
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FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x)
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{
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BLASLONG i=0;
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BLASLONG ip=0;
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FLOAT sumf = 0.0;
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BLASLONG n1;
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BLASLONG inc_x2;
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if (n <= 0 || inc_x <= 0) return(sumf);
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if ( inc_x == 1 )
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{
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n1 = n & -16;
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if ( n1 > 0 )
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{
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sumf = casum_kernel_16(n1, x);
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i=n1;
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ip = 2 * n1;
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}
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while(i < n)
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{
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sumf += ABS(x[ip]) + ABS(x[ip+1]);
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ip += 2;
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i++;
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}
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}
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else
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{
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inc_x2 = 2 * inc_x;
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while(i < n)
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{
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sumf += ABS(x[ip]) + ABS(x[ip+1]);
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ip += inc_x2;
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i++;
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}
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}
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return(sumf);
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}
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