209 lines
6.2 KiB
C
209 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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#if defined(Z13)
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static FLOAT ddot_kernel_16(BLASLONG n, FLOAT *x, FLOAT *y)
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{
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FLOAT dot;
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__asm__ volatile(
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"pfd 1, 0(%[ptr_x_tmp]) \n\t"
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"pfd 1, 0(%[ptr_y_tmp]) \n\t"
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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 %[n_tmp],%[n_tmp],4 \n\t"
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"xgr %%r1,%%r1 \n\t"
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".align 16 \n\t"
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"1: \n\t"
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"pfd 1, 256(%%r1,%[ptr_x_tmp]) \n\t"
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"pfd 1, 256(%%r1,%[ptr_y_tmp]) \n\t"
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"vl %%v16, 0(%%r1,%[ptr_x_tmp]) \n\t"
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"vl %%v17, 16(%%r1,%[ptr_x_tmp]) \n\t"
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"vl %%v18, 32(%%r1,%[ptr_x_tmp]) \n\t"
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"vl %%v19, 48(%%r1,%[ptr_x_tmp]) \n\t"
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"vl %%v28, 0(%%r1,%[ptr_y_tmp]) \n\t"
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"vfmadb %%v24,%%v16,%%v28,%%v24 \n\t"
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"vl %%v29, 16(%%r1,%[ptr_y_tmp]) \n\t"
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"vfmadb %%v25,%%v17,%%v29,%%v25 \n\t"
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"vl %%v30, 32(%%r1,%[ptr_y_tmp]) \n\t"
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"vfmadb %%v26,%%v18,%%v30,%%v26 \n\t"
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"vl %%v31, 48(%%r1,%[ptr_y_tmp]) \n\t"
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"vfmadb %%v27,%%v19,%%v31,%%v27 \n\t"
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"vl %%v16, 64(%%r1 ,%[ptr_x_tmp]) \n\t"
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"vl %%v17, 80(%%r1,%[ptr_x_tmp]) \n\t"
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"vl %%v18, 96(%%r1,%[ptr_x_tmp]) \n\t"
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"vl %%v19, 112(%%r1,%[ptr_x_tmp]) \n\t"
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"vl %%v28, 64(%%r1,%[ptr_y_tmp]) \n\t"
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"vfmadb %%v24,%%v16,%%v28,%%v24 \n\t"
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"vl %%v29, 80(%%r1,%[ptr_y_tmp]) \n\t"
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"vfmadb %%v25,%%v17,%%v29,%%v25 \n\t"
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"vl %%v30, 96(%%r1,%[ptr_y_tmp]) \n\t"
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"vfmadb %%v26,%%v18,%%v30,%%v26 \n\t"
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"vl %%v31, 112(%%r1,%[ptr_y_tmp]) \n\t"
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"vfmadb %%v27,%%v19,%%v31,%%v27 \n\t"
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"la %%r1,128(%%r1) \n\t"
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"brctg %[n_tmp],1b \n\t"
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"vfadb %%v24,%%v25,%%v24 \n\t"
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"vfadb %%v24,%%v26,%%v24 \n\t"
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"vfadb %%v24,%%v27,%%v24 \n\t"
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"vrepg %%v1,%%v24,1 \n\t"
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"vfadb %%v1,%%v24,%%v1 \n\t"
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"ldr %[dot], %%f1 \n\t"
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: [dot] "=f"(dot) ,[n_tmp] "+&r"(n)
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: [mem_x] "m"( *(const double (*)[n])x),
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[mem_y] "m"( *(const double (*)[n])y),
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[ptr_x_tmp]"a"(x), [ptr_y_tmp] "a"(y)
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:"cc" , "r1","f1","v16", "v17","v18","v19","v20","v21","v22","v23",
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"v24","v25","v26","v27","v28","v29","v30","v31"
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);
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return dot;
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}
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#else
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static FLOAT ddot_kernel_16(BLASLONG n, FLOAT *x, FLOAT *y )
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{
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BLASLONG register i = 0;
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FLOAT dot = 0.0;
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while(i < n)
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{
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dot += y[i] * x[i]
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+ y[i+1] * x[i+1]
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+ y[i+2] * x[i+2]
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+ y[i+3] * x[i+3]
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+ y[i+4] * x[i+4]
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+ y[i+5] * x[i+5]
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+ y[i+6] * x[i+6]
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+ y[i+7] * x[i+7] ;
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dot += y[i+8] * x[i+8]
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+ y[i+9] * x[i+9]
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+ y[i+10] * x[i+10]
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+ y[i+11] * x[i+11]
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+ y[i+12] * x[i+12]
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+ y[i+13] * x[i+13]
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+ y[i+14] * x[i+14]
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+ y[i+15] * x[i+15] ;
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i+=16 ;
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}
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return dot;
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}
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#endif
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FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
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{
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BLASLONG i=0;
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BLASLONG ix=0,iy=0;
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FLOAT dot = 0.0 ;
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if ( n <= 0 ) return(dot);
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if ( (inc_x == 1) && (inc_y == 1) )
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{
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BLASLONG n1 = n & -16;
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if ( n1 ){
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dot = ddot_kernel_16(n1, x, y );
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i = n1;
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}
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while(i < n)
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{
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dot += y[i] * x[i] ;
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i++ ;
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}
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return(dot);
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}
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FLOAT temp1 = 0.0;
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FLOAT temp2 = 0.0;
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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 = y[iy] * x[ix] ;
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FLOAT m2 = y[iy+inc_y] * x[ix+inc_x] ;
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FLOAT m3 = y[iy+2*inc_y] * x[ix+2*inc_x] ;
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FLOAT m4 = y[iy+3*inc_y] * x[ix+3*inc_x] ;
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ix += inc_x*4 ;
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iy += inc_y*4 ;
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temp1 += m1+m3;
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temp2 += m2+m4;
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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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temp1 += y[iy] * 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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dot = temp1 + temp2;
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return(dot);
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}
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