OpenBLAS/kernel/power/dcopy.c

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/**************************************************************************************
* 2016/03/25 Werner Saar (wernsaar@googlemail.com)
* 	 BLASTEST 		: OK
* 	 CTEST			: OK
* 	 TEST			: OK
*	 LAPACK-TEST		: OK
**************************************************************************************/

#include "common.h"

#if defined(POWER8)
#include "dcopy_microk_power8.c"
#endif

#ifndef HAVE_KERNEL_32

static void dcopy_kernel_32(BLASLONG n, FLOAT *x, FLOAT *y)
{

	BLASLONG i=0;
	FLOAT f0, f1, f2, f3, f4, f5, f6, f7;
	FLOAT *x1=x;
	FLOAT *y1=y;

	while ( i<n )
	{

		f0 = x1[0];
		f1 = x1[1];
		f2 = x1[2];
		f3 = x1[3];
		f4 = x1[4];
		f5 = x1[5];
		f6 = x1[6];
		f7 = x1[7];

		y1[0] = f0;
		y1[1] = f1;
		y1[2] = f2;
		y1[3] = f3;
		y1[4] = f4;
		y1[5] = f5;
		y1[6] = f6;
		y1[7] = f7;

		x1 += 8;
		y1 += 8;

		i+=8;
	}
	return;

}


#endif



int CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
{
	BLASLONG i=0;
	BLASLONG ix=0,iy=0;

	if ( n <= 0     )  return(0);

	if ( (inc_x == 1) && (inc_y == 1 ))
	{

		BLASLONG n1 = n & -32;
		if ( n1 > 0 )
		{
			dcopy_kernel_32(n1, x, y);
			i=n1;
		}

		while(i < n)
		{
			y[i] = x[i] ;
			i++ ;

		}


	}
	else
	{

		while(i < n)
		{
			y[iy] = x[ix] ;
			ix += inc_x ;
			iy += inc_y ;
			i++ ;

		}

	}
	return(0);
	

}