185 lines
6.4 KiB
C
185 lines
6.4 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 saxpy_kernel_64(BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *alpha)
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{
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__asm__ volatile(
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"vlrepf %%v0,%3 \n\t"
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"srlg %%r0,%0,6 \n\t"
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"xgr %%r1,%%r1 \n\t"
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"0: \n\t"
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"pfd 1, 1024(%%r1,%1) \n\t"
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"pfd 2, 1024(%%r1,%2) \n\t"
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"vl %%v16,0(%%r1,%1) \n\t"
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"vl %%v17,16(%%r1,%1) \n\t"
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"vl %%v18,32(%%r1,%1) \n\t"
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"vl %%v19,48(%%r1,%1) \n\t"
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"vl %%v20,0(%%r1,%2) \n\t"
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"vl %%v21,16(%%r1,%2) \n\t"
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"vl %%v22,32(%%r1,%2) \n\t"
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"vl %%v23,48(%%r1,%2) \n\t"
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"vfmasb %%v16,%%v0,%%v16,%%v20 \n\t"
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"vfmasb %%v17,%%v0,%%v17,%%v21 \n\t"
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"vfmasb %%v18,%%v0,%%v18,%%v22 \n\t"
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"vfmasb %%v19,%%v0,%%v19,%%v23 \n\t"
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"vl %%v24,64(%%r1,%1) \n\t"
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"vl %%v25,80(%%r1,%1) \n\t"
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"vl %%v26,96(%%r1,%1) \n\t"
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"vl %%v27,112(%%r1,%1) \n\t"
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"vl %%v28,64(%%r1,%2) \n\t"
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"vl %%v29,80(%%r1,%2) \n\t"
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"vl %%v30,96(%%r1,%2) \n\t"
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"vl %%v31,112(%%r1,%2) \n\t"
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"vfmasb %%v20,%%v0,%%v24,%%v28 \n\t"
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"vfmasb %%v21,%%v0,%%v25,%%v29 \n\t"
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"vfmasb %%v22,%%v0,%%v26,%%v30 \n\t"
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"vfmasb %%v23,%%v0,%%v27,%%v31 \n\t"
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"vst %%v16,0(%%r1,%2) \n\t"
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"vst %%v17,16(%%r1,%2) \n\t"
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"vst %%v18,32(%%r1,%2) \n\t"
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"vst %%v19,48(%%r1,%2) \n\t"
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"vst %%v20,64(%%r1,%2) \n\t"
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"vst %%v21,80(%%r1,%2) \n\t"
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"vst %%v22,96(%%r1,%2) \n\t"
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"vst %%v23,112(%%r1,%2) \n\t"
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"vl %%v16,128(%%r1,%1) \n\t"
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"vl %%v17,144(%%r1,%1) \n\t"
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"vl %%v18,160(%%r1,%1) \n\t"
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"vl %%v19,176(%%r1,%1) \n\t"
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"vl %%v20,128(%%r1,%2) \n\t"
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"vl %%v21,144(%%r1,%2) \n\t"
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"vl %%v22,160(%%r1,%2) \n\t"
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"vl %%v23,176(%%r1,%2) \n\t"
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"vfmasb %%v16,%%v0,%%v16,%%v20 \n\t"
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"vfmasb %%v17,%%v0,%%v17,%%v21 \n\t"
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"vfmasb %%v18,%%v0,%%v18,%%v22 \n\t"
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"vfmasb %%v19,%%v0,%%v19,%%v23 \n\t"
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"vl %%v24,192(%%r1,%1) \n\t"
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"vl %%v25,208(%%r1,%1) \n\t"
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"vl %%v26,224(%%r1,%1) \n\t"
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"vl %%v27,240(%%r1,%1) \n\t"
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"vl %%v28,192(%%r1,%2) \n\t"
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"vl %%v29,208(%%r1,%2) \n\t"
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"vl %%v30,224(%%r1,%2) \n\t"
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"vl %%v31,240(%%r1,%2) \n\t"
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"vfmasb %%v20,%%v0,%%v24,%%v28 \n\t"
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"vfmasb %%v21,%%v0,%%v25,%%v29 \n\t"
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"vfmasb %%v22,%%v0,%%v26,%%v30 \n\t"
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"vfmasb %%v23,%%v0,%%v27,%%v31 \n\t"
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"vst %%v16,128(%%r1,%2) \n\t"
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"vst %%v17,144(%%r1,%2) \n\t"
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"vst %%v18,160(%%r1,%2) \n\t"
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"vst %%v19,176(%%r1,%2) \n\t"
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"vst %%v20,192(%%r1,%2) \n\t"
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"vst %%v21,208(%%r1,%2) \n\t"
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"vst %%v22,224(%%r1,%2) \n\t"
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"vst %%v23,240(%%r1,%2) \n\t"
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"agfi %%r1,256 \n\t"
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"brctg %%r0,0b "
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:
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:"r"(n),"ZR"((const FLOAT (*)[n])x),"ZR"((FLOAT (*)[n])y),"m"(*alpha)
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:"memory","cc","r0","r1","v0","v16","v17","v18","v19","v20","v21","v22","v23","v24","v25","v26","v27","v28","v29","v30","v31"
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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;
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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 ( n1 )
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saxpy_kernel_64(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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