swap.s

Optimized GotoBLAS libraries

/*********************************************************************/
/*                                                                   */
/*             Optimized BLAS libraries                              */
/*                     By Kazushige Goto <[e-mail]>     */
/*                                                                   */
/* Copyright (c) The University of Texas, 2005. All rights reserved. */
/* UNIVERSITY EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES CONCERNING  */
/* THIS SOFTWARE AND DOCUMENTATION, INCLUDING ANY WARRANTIES OF      */
/* MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE,              */
/* NON-INFRINGEMENT AND WARRANTIES OF PERFORMANCE, AND ANY WARRANTY  */
/* THAT MIGHT OTHERWISE ARISE FROM COURSE OF DEALING OR USAGE OF     */
/* TRADE. NO WARRANTY IS EITHER EXPRESS OR IMPLIED WITH RESPECT TO   */
/* THE USE OF THE SOFTWARE OR DOCUMENTATION.                         */
/* Under no circumstances shall University be liable for incidental, */
/* special, indirect, direct or consequential damages or loss of     */
/* profits, interruption of business, or related expenses which may  */
/* arise from use of Software or Documentation, including but not    */
/* limited to those resulting from defects in Software and/or        */
/* Documentation, or loss or inaccuracy of data of any kind.         */
/*********************************************************************/

#define ASSEMBLER
#include "common.h"

#ifndef WINDOWS_ABI
#define N	ARG1
#define X	ARG4
#define INCX	ARG5
#define Y	ARG6
#define INCY	ARG2
#else
#define N	ARG1
#define X	ARG2
#define INCX	ARG3
#define Y	ARG4
#define INCY	%rbx
#endif

#define XX	%r10
#define YY	%r11

#define PREFETCHSIZE (8 + 4)

	PROLOGUE
	PROFCODE
	
#ifndef WINDOWS_ABI
#ifndef XDOUBLE
	movq	 8(%rsp), INCY
#else
	movq	24(%rsp), INCY
#endif
#else
	pushq	%rbx

	movq	48(%rsp), X
	movq	56(%rsp), INCX
	movq	64(%rsp), Y
	movq	72(%rsp), INCY
#endif

	EMMS

	salq	$BASE_SHIFT, INCX
	salq	$BASE_SHIFT, INCY

	cmpq	$SIZE, INCX
	jne	.L14
	cmpq	$SIZE, INCY
	jne	.L14

	movq	N,  %rax
	sarq	$3, %rax
	jle	.L15
	ALIGN_3

.L16:
#ifdef XDOUBLE
	movq	  0(X), %mm0
	movq	  8(X), %mm1
	movq	 16(X), %mm2
	movq	 24(X), %mm3
	movq	  0(Y), %mm4
	movq	  8(Y), %mm5
	movq	 16(Y), %mm6
	movq	 24(Y), %mm7

	movq	%mm4,   0(X)
	movq	%mm5,   8(X)
	movq	%mm6,  16(X)
	movq	%mm7,  24(X)
	movq	%mm0,   0(Y)
	movq	%mm1,   8(Y)
	movq	%mm2,  16(Y)
	movq	%mm3,  24(Y)

	movq	 32(X), %mm0
	movq	 40(X), %mm1
	movq	 48(X), %mm2
	movq	 56(X), %mm3
	movq	 32(Y), %mm4
	movq	 40(Y), %mm5
	movq	 48(Y), %mm6
	movq	 56(Y), %mm7

	movq	%mm4,  32(X)
	movq	%mm5,  40(X)
	movq	%mm6,  48(X)
	movq	%mm7,  56(X)
	movq	%mm0,  32(Y)
	movq	%mm1,  40(Y)
	movq	%mm2,  48(Y)
	movq	%mm3,  56(Y)

	movq	 64(X), %mm0
	movq	 72(X), %mm1
	movq	 80(X), %mm2
	movq	 88(X), %mm3
	movq	 64(Y), %mm4
	movq	 72(Y), %mm5
	movq	 80(Y), %mm6
	movq	 88(Y), %mm7

	movq	%mm4,  64(X)
	movq	%mm5,  72(X)
	movq	%mm6,  80(X)
	movq	%mm7,  88(X)
	movq	%mm0,  64(Y)
	movq	%mm1,  72(Y)
	movq	%mm2,  80(Y)
	movq	%mm3,  88(Y)

	movq	 96(X), %mm0
	movq	104(X), %mm1
	movq	112(X), %mm2
	movq	120(X), %mm3
	movq	 96(Y), %mm4
	movq	104(Y), %mm5
	movq	112(Y), %mm6
	movq	120(Y), %mm7

	movq	%mm4,  96(X)
	movq	%mm5, 104(X)
	movq	%mm6, 112(X)
	movq	%mm7, 120(X)
	movq	%mm0,  96(Y)
	movq	%mm1, 104(Y)
	movq	%mm2, 112(Y)
	movq	%mm3, 120(Y)

#elif defined(DOUBLE)
#ifdef OPTERON
	prefetchw	PREFETCHSIZE * SIZE(X)
#endif
	movq	0 * SIZE(X), %mm0
	movq	1 * SIZE(X), %mm1
	movq	2 * SIZE(X), %mm2
	movq	3 * SIZE(X), %mm3
#ifdef OPTERON
	prefetchw	PREFETCHSIZE * SIZE(Y)
#endif
	movq	0 * SIZE(Y), %mm4
	movq	1 * SIZE(Y), %mm5
	movq	2 * SIZE(Y), %mm6
	movq	3 * SIZE(Y), %mm7

	movq	%mm4, 0 * SIZE(X)
	movq	%mm5, 1 * SIZE(X)
	movq	%mm6, 2 * SIZE(X)
	movq	%mm7, 3 * SIZE(X)
	movq	%mm0, 0 * SIZE(Y)
	movq	%mm1, 1 * SIZE(Y)
	movq	%mm2, 2 * SIZE(Y)
	movq	%mm3, 3 * SIZE(Y)

	movq	4 * SIZE(X), %mm0
	movq	5 * SIZE(X), %mm1
	movq	6 * SIZE(X), %mm2
	movq	7 * SIZE(X), %mm3
	movq	4 * SIZE(Y), %mm4
	movq	5 * SIZE(Y), %mm5
	movq	6 * SIZE(Y), %mm6
	movq	7 * SIZE(Y), %mm7

	movq	%mm4, 4 * SIZE(X)
	movq	%mm5, 5 * SIZE(X)
	movq	%mm6, 6 * SIZE(X)
	movq	%mm7, 7 * SIZE(X)
	movq	%mm0, 4 * SIZE(Y)
	movq	%mm1, 5 * SIZE(Y)
	movq	%mm2, 6 * SIZE(Y)
	movq	%mm3, 7 * SIZE(Y)

#else
#ifdef OPTERON
	prefetchw	PREFETCHSIZE * SIZE(X)
#endif
	movq	0 * SIZE(X), %mm0
	movq	2 * SIZE(X), %mm1
	movq	4 * SIZE(X), %mm2
	movq	6 * SIZE(X), %mm3
	movq	0 * SIZE(Y), %mm4
	movq	2 * SIZE(Y), %mm5
	movq	4 * SIZE(Y), %mm6
	movq	6 * SIZE(Y), %mm7

#ifdef OPTERON
	prefetchw	PREFETCHSIZE * SIZE(Y)
#endif
	movq	%mm4, 0 * SIZE(X)
	movq	%mm5, 2 * SIZE(X)
	movq	%mm6, 4 * SIZE(X)
	movq	%mm7, 6 * SIZE(X)

	movq	%mm0, 0 * SIZE(Y)
	movq	%mm1, 2 * SIZE(Y)
	movq	%mm2, 4 * SIZE(Y)
	movq	%mm3, 6 * SIZE(Y)
#endif

	addq	$8 * SIZE, X
	addq	$8 * SIZE, Y
	decq	%rax
	jg	.L16
	ALIGN_3

.L15:
	movq	N, %rax
	andq	$7,   %rax
	jle	.L27
	ALIGN_3

.L22:

#ifdef XDOUBLE
	movq	  0(X), %mm0
	movq	  8(X), %mm1
	movq	  0(Y), %mm4
	movq	  8(Y), %mm5

	movq	%mm4,   0(X)
	movq	%mm5,   8(X)
	movq	%mm0,   0(Y)
	movq	%mm1,   8(Y)
#else
	MOVQ	0 * SIZE(X), %mm0
	MOVQ	0 * SIZE(Y), %mm4
	MOVQ	%mm4, 0 * SIZE(X)
	MOVQ	%mm0, 0 * SIZE(Y)
#endif

	addq	$SIZE, X
	addq	$SIZE, Y
	decq	%rax
	jg	.L22
	jmp	.L27
	ALIGN_3

/* INCX != 1 or INCY != 1 */

.L14:
	movq	N, %rax
	movq	X, XX
	movq	Y, YY
	sarq	$2,   %rax
	jle	.L28
	ALIGN_2

.L29:
#ifdef XDOUBLE
	movq	  0(X), %mm0
	movq	  8(X), %mm1
	addq	INCX, X
	movq	  0(Y), %mm4
	movq	  8(Y), %mm5
	addq	INCY, Y

	movq	%mm4,   0(XX)
	movq	%mm5,   8(XX)
	addq	INCX, XX
	movq	%mm0,   0(YY)
	movq	%mm1,   8(YY)
	addq	INCY, YY

	movq	  0(X), %mm0
	movq	  8(X), %mm1
	addq	INCX, X
	movq	  0(Y), %mm4
	movq	  8(Y), %mm5
	addq	INCY, Y

	movq	%mm4,   0(XX)
	movq	%mm5,   8(XX)
	addq	INCX, XX
	movq	%mm0,   0(YY)
	movq	%mm1,   8(YY)
	addq	INCY, YY

	movq	  0(X), %mm0
	movq	  8(X), %mm1
	addq	INCX, X
	movq	  0(Y), %mm4
	movq	  8(Y), %mm5
	addq	INCY, Y

	movq	%mm4,   0(XX)
	movq	%mm5,   8(XX)
	addq	INCX, XX
	movq	%mm0,   0(YY)
	movq	%mm1,   8(YY)
	addq	INCY, YY

	movq	  0(X), %mm0
	movq	  8(X), %mm1
	addq	INCX, X
	movq	  0(Y), %mm4
	movq	  8(Y), %mm5
	addq	INCY, Y

	movq	%mm4,   0(XX)
	movq	%mm5,   8(XX)
	addq	INCX, XX
	movq	%mm0,   0(YY)
	movq	%mm1,   8(YY)
	addq	INCY, YY
#else
	MOVQ	(X), %mm0
	addq	INCX, X
	MOVQ	(X), %mm1
	addq	INCX, X
	MOVQ	(X), %mm2
	addq	INCX, X
	MOVQ	(X), %mm3
	addq	INCX, X

	MOVQ	(Y), %mm4
	addq	INCY, Y
	MOVQ	(Y), %mm5
	addq	INCY, Y
	MOVQ	(Y), %mm6
	addq	INCY, Y
	MOVQ	(Y), %mm7
	addq	INCY, Y

	MOVQ	%mm4, (XX)
	addq	INCX, XX
	MOVQ	%mm5, (XX)
	addq	INCX, XX
	MOVQ	%mm6, (XX)
	addq	INCX, XX
	MOVQ	%mm7, (XX)
	addq	INCX, XX

	MOVQ	%mm0, (YY)
	addq	INCY, YY
	MOVQ	%mm1, (YY)
	addq	INCY, YY
	MOVQ	%mm2, (YY)
	addq	INCY, YY
	MOVQ	%mm3, (YY)
	addq	INCY, YY
#endif

	decq	%rax
	jg	.L29
	ALIGN_3

.L28:
	movq	N, %rax
	andq	$3,   %rax
	jle	.L27
	ALIGN_3

.L35:
#ifdef XDOUBLE
	movq	  0(X), %mm0
	movq	  8(X), %mm1
	movq	  0(Y), %mm4
	movq	  8(Y), %mm5

	movq	%mm4,   0(X)
	movq	%mm5,   8(X)
	movq	%mm0,   0(Y)
	movq	%mm1,   8(Y)
#else
	MOVQ	(X), %mm0
	MOVQ	(Y), %mm4

	MOVQ	%mm4, (X)
	MOVQ	%mm0, (Y)
#endif
	addq	INCX, X
	addq	INCY, Y

	decq	%rax
	jg	.L35
	ALIGN_3

.L27:
	EMMS
	xorq	%rax,%rax

#ifdef WINDOWS_ABI
	popq	%rbx
#endif

	ret

	EPILOGUE