141 lines
4.4 KiB
C
141 lines
4.4 KiB
C
/***************************************************************************
|
|
Copyright (c) 2013-2018,The OpenBLAS Project
|
|
All rights reserved.
|
|
Redistribution and use in source and binary forms,with or without
|
|
modification,are permitted provided that the following conditions are
|
|
met:
|
|
1. Redistributions of source code must retain the above copyright
|
|
notice,this list of conditions and the following disclaimer.
|
|
2. Redistributions in binary form must reproduce the above copyright
|
|
notice,this list of conditions and the following disclaimer in
|
|
the documentation and/or other materials provided with the
|
|
distribution.
|
|
3. Neither the name of the OpenBLAS project nor the names of
|
|
its contributors may be used to endorse or promote products
|
|
derived from this software without specific prior written permission.
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES,INCLUDING,BUT NOT LIMITED TO,THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
|
|
LIABLE FOR ANY DIRECT,INDIRECT,INCIDENTAL,SPECIAL,EXEMPLARY,OR CONSEQUENTIAL
|
|
DAMAGES (INCLUDING,BUT NOT LIMITED TO,PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
SERVICES; LOSS OF USE,DATA,OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
CAUSED AND ON ANY THEORY OF LIABILITY,WHETHER IN CONTRACT,STRICT LIABILITY,
|
|
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
|
|
USE OF THIS SOFTWARE,EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*****************************************************************************/
|
|
|
|
#include "common.h"
|
|
|
|
static FLOAT sdot_kernel_32(BLASLONG n, FLOAT *x, FLOAT *y)
|
|
{
|
|
FLOAT dot;
|
|
|
|
__asm__ volatile (
|
|
"vzero %%v0 \n\t"
|
|
"srlg %%r0,%1,5 \n\t"
|
|
"xgr %%r1,%%r1 \n\t"
|
|
"0: \n\t"
|
|
"pfd 1,1024(%%r1,%2) \n\t"
|
|
"pfd 1,1024(%%r1,%3) \n\t"
|
|
|
|
"vl %%v16,0(%%r1,%2) \n\t"
|
|
"vl %%v17,16(%%r1,%2) \n\t"
|
|
"vl %%v18,32(%%r1,%2) \n\t"
|
|
"vl %%v19,48(%%r1,%2) \n\t"
|
|
"vl %%v20,64(%%r1,%2) \n\t"
|
|
"vl %%v21,80(%%r1,%2) \n\t"
|
|
"vl %%v22,96(%%r1,%2) \n\t"
|
|
"vl %%v23,112(%%r1,%2) \n\t"
|
|
|
|
"vl %%v24,0(%%r1,%3) \n\t"
|
|
"vfmasb %%v0,%%v16,%%v24,%%v0 \n\t"
|
|
"vl %%v25,16(%%r1,%3) \n\t"
|
|
"vfmasb %%v0,%%v17,%%v25,%%v0 \n\t"
|
|
"vl %%v26,32(%%r1,%3) \n\t"
|
|
"vfmasb %%v0,%%v18,%%v26,%%v0 \n\t"
|
|
"vl %%v27,48(%%r1,%3) \n\t"
|
|
"vfmasb %%v0,%%v19,%%v27,%%v0 \n\t"
|
|
"vl %%v28,64(%%r1,%3) \n\t"
|
|
"vfmasb %%v0,%%v20,%%v28,%%v0 \n\t"
|
|
"vl %%v29,80(%%r1,%3) \n\t"
|
|
"vfmasb %%v0,%%v21,%%v29,%%v0 \n\t"
|
|
"vl %%v30,96(%%r1,%3) \n\t"
|
|
"vfmasb %%v0,%%v22,%%v30,%%v0 \n\t"
|
|
"vl %%v31,112(%%r1,%3) \n\t"
|
|
"vfmasb %%v0,%%v23,%%v31,%%v0 \n\t"
|
|
|
|
"agfi %%r1,128 \n\t"
|
|
"brctg %%r0,0b \n\t"
|
|
"vrepf %%v1,%%v0,1 \n\t"
|
|
"vrepf %%v2,%%v0,2 \n\t"
|
|
"vrepf %%v3,%%v0,3 \n\t"
|
|
"aebr %%f0,%%f1 \n\t"
|
|
"aebr %%f0,%%f2 \n\t"
|
|
"aebr %%f0,%%f3 \n\t"
|
|
"ler %0,%%f0 "
|
|
:"=f"(dot)
|
|
:"r"(n),"ZR"((const FLOAT (*)[n])x),"ZR"((const FLOAT (*)[n])y)
|
|
:"memory","cc","r0","r1","v0","v1","v2","v3","v16","v17","v18","v19","v20","v21","v22","v23","v24","v25","v26","v27","v28","v29","v30","v31"
|
|
);
|
|
|
|
return dot;
|
|
}
|
|
|
|
FLOAT CNAME(BLASLONG n,FLOAT *x,BLASLONG inc_x,FLOAT *y,BLASLONG inc_y)
|
|
{
|
|
BLASLONG i=0;
|
|
BLASLONG ix=0,iy=0;
|
|
|
|
FLOAT dot = 0.0 ;
|
|
|
|
if ( n <= 0 ) return(dot);
|
|
|
|
if ( (inc_x == 1) && (inc_y == 1) )
|
|
{
|
|
|
|
BLASLONG n1 = n & -32;
|
|
|
|
if ( n1 )
|
|
dot = sdot_kernel_32(n1,x,y);
|
|
|
|
i = n1;
|
|
while(i < n)
|
|
{
|
|
|
|
dot += y[i] * x[i] ;
|
|
i++ ;
|
|
|
|
}
|
|
return(dot);
|
|
|
|
|
|
}
|
|
|
|
BLASLONG n1 = n & -2;
|
|
|
|
while(i < n1)
|
|
{
|
|
|
|
dot += y[iy] * x[ix] + y[iy+inc_y] * x[ix+inc_x];
|
|
ix += inc_x*2 ;
|
|
iy += inc_y*2 ;
|
|
i+=2 ;
|
|
|
|
}
|
|
|
|
while(i < n)
|
|
{
|
|
|
|
dot += y[iy] * x[ix] ;
|
|
ix += inc_x ;
|
|
iy += inc_y ;
|
|
i++ ;
|
|
|
|
}
|
|
return(dot);
|
|
|
|
}
|
|
|
|
|