206 lines
6.1 KiB
C
206 lines
6.1 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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static void dscal_kernel_16(BLASLONG n, FLOAT da, FLOAT *x)
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{
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__asm__ volatile (
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"vlrepg %%v0,%1 \n\t"
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"srlg %%r0,%0,4 \n\t"
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"xgr %%r1,%%r1 \n\t"
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"0: \n\t"
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"pfd 2, 1024(%%r1,%2) \n\t"
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"vl %%v24, 0(%%r1,%2) \n\t"
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"vfmdb %%v24,%%v24,%%v0 \n\t"
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"vst %%v24, 0(%%r1,%2) \n\t"
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"vl %%v25, 16(%%r1,%2) \n\t"
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"vfmdb %%v25,%%v25,%%v0 \n\t"
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"vst %%v25, 16(%%r1,%2) \n\t"
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"vl %%v26, 32(%%r1,%2) \n\t"
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"vfmdb %%v26,%%v26,%%v0 \n\t"
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"vst %%v26, 32(%%r1,%2) \n\t"
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"vl %%v27, 48(%%r1,%2) \n\t"
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"vfmdb %%v27,%%v27,%%v0 \n\t"
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"vst %%v27, 48(%%r1,%2) \n\t"
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"vl %%v24, 64(%%r1,%2) \n\t"
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"vfmdb %%v24,%%v24,%%v0 \n\t"
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"vst %%v24, 64(%%r1,%2) \n\t"
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"vl %%v25, 80(%%r1,%2) \n\t"
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"vfmdb %%v25,%%v25,%%v0 \n\t"
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"vst %%v25, 80(%%r1,%2) \n\t"
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"vl %%v26, 96(%%r1,%2) \n\t"
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"vfmdb %%v26,%%v26,%%v0 \n\t"
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"vst %%v26, 96(%%r1,%2) \n\t"
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"vl %%v27, 112(%%r1,%2) \n\t"
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"vfmdb %%v27,%%v27,%%v0 \n\t"
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"vst %%v27, 112(%%r1,%2) \n\t"
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"agfi %%r1,128 \n\t"
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"brctg %%r0,0b "
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:
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:"r"(n),"m"(da),"ZR"((FLOAT (*)[n])x)
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:"memory","cc","r0","r1","v0","v24","v25","v26","v27"
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);
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}
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static void dscal_kernel_16_zero(BLASLONG n, FLOAT *x)
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{
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__asm__ volatile(
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"vzero %%v24 \n\t"
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"vzero %%v25 \n\t"
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"vzero %%v26 \n\t"
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"vzero %%v27 \n\t"
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"srlg %%r0,%0,4 \n\t"
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"xgr %%r1,%%r1 \n\t"
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"0: \n\t"
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"pfd 2, 1024(%%r1,%1) \n\t"
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"vst %%v24,0(%%r1,%1) \n\t"
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"vst %%v25,16(%%r1,%1) \n\t"
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"vst %%v26,32(%%r1,%1) \n\t"
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"vst %%v27,48(%%r1,%1) \n\t"
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"vst %%v24,64(%%r1,%1) \n\t"
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"vst %%v25,80(%%r1,%1) \n\t"
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"vst %%v26,96(%%r1,%1) \n\t"
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"vst %%v27,112(%%r1,%1) \n\t"
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"agfi %%r1,128 \n\t"
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"brctg %%r0,0b "
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:
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:"r"(n),"ZR"((FLOAT (*)[n])x)
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:"memory","cc","r0","r1","v24","v25","v26","v27"
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);
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}
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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,j=0;
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if ( n <= 0 || inc_x <=0 )
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return(0);
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if ( inc_x == 1 )
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{
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if ( da == 0.0 )
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{
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BLASLONG n1 = n & -16;
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if ( n1 > 0 )
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{
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dscal_kernel_16_zero(n1, x);
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j=n1;
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}
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while(j < n)
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{
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x[j]=0.0;
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j++;
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}
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}
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else
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{
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BLASLONG n1 = n & -16;
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if ( n1 > 0 )
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{
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dscal_kernel_16(n1, da, x);
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j=n1;
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}
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while(j < n)
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{
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x[j] = da * x[j] ;
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j++;
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}
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}
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}
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else
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{
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if ( da == 0.0 )
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{
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BLASLONG n1 = n & -4;
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while (j < n1) {
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x[i]=0.0;
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x[i + inc_x]=0.0;
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x[i + 2 * inc_x]=0.0;
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x[i + 3 * inc_x]=0.0;
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i += inc_x * 4;
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j += 4;
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}
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while(j < n)
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{
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x[i]=0.0;
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i += inc_x ;
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j++;
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}
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}
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else
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{
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BLASLONG n1 = n & -4;
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while (j < n1) {
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x[i] = da * x[i] ;
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x[i + inc_x] = da * x[i + inc_x];
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x[i + 2 * inc_x] = da * x[i + 2 * inc_x];
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x[i + 3 * inc_x] = da * x[i + 3 * inc_x];
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i += inc_x * 4;
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j += 4;
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}
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while(j < n)
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{
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x[i] = da * x[i] ;
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i += inc_x ;
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j++;
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}
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}
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}
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return 0;
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}
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