/*********************************************************************/

/* Copyright 2009, 2010 The University of Texas at Austin.           */

/* 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.                              */

/*                                                                   */

/*    THIS  SOFTWARE IS PROVIDED  BY THE  UNIVERSITY OF  TEXAS AT    */

/*    AUSTIN  ``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 UNIVERSITY  OF TEXAS AT    */

/*    AUSTIN 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.                                    */

/*                                                                   */

/* The views and conclusions contained in the software and           */

/* documentation are those of the authors and should not be          */

/* interpreted as representing official policies, either expressed   */

/* or implied, of The University of Texas at Austin.                 */

/*********************************************************************/

#define ASSEMBLER

#include "common.h"

#define N	ARG1	/* rdi */

#define X	ARG2	/* rsi */

#define INCX	ARG3	/* rdx */

#define Y	ARG4	/* rcx */

#ifndef WINDOWS_ABI

#define INCY	ARG5	/* r8  */

#else

#define INCY	%r10

#endif

#include "l1param.h"

	PROLOGUE

	PROFCODE

#ifdef WINDOWS_ABI

	movq	40(%rsp), INCY

#endif

	SAVEREGISTERS

	leaq	(, INCX, SIZE), INCX	

	pxor	%xmm0, %xmm0

	leaq	(, INCY, SIZE), INCY	

	pxor	%xmm1, %xmm1

	pxor	%xmm2, %xmm2

	cmpq	$0, N

	pxor	%xmm3, %xmm3

	jle	.L999

	cmpq	$SIZE, INCX

	jne	.L50

	cmpq	$SIZE, INCY

	jne	.L50

	movq	N,  %rax

	sarq	$3, %rax

	jle	.L14

	movsd	 0 * SIZE(X), %xmm4

	movsd	 0 * SIZE(Y), %xmm8

	movsd	 1 * SIZE(X), %xmm5

	movsd	 1 * SIZE(Y), %xmm9

	movsd	 2 * SIZE(X), %xmm6

	mulsd	%xmm8,  %xmm4

	movsd	 2 * SIZE(Y), %xmm10

	mulsd	%xmm9,  %xmm5

	movsd	 3 * SIZE(X), %xmm7

	mulsd	%xmm10, %xmm6

	movsd	 3 * SIZE(Y), %xmm11

	mulsd	%xmm11, %xmm7

	decq	%rax

	jle	.L12

	ALIGN_3

.L11:

#ifdef PREFETCH

	PREFETCH (PREFETCHSIZE +  0) - PREOFFSET(X)

#endif

	addsd	%xmm4,  %xmm0

	movsd	 4 * SIZE(X), %xmm4

	addsd	%xmm5,  %xmm1

	movsd	 4 * SIZE(Y), %xmm8

	addsd	%xmm6,  %xmm2

	movsd	 5 * SIZE(X), %xmm5

	addsd	%xmm7,  %xmm3

	movsd	 5 * SIZE(Y), %xmm9

	movsd	 6 * SIZE(X), %xmm6

	mulsd	%xmm8,  %xmm4

	movsd	 6 * SIZE(Y), %xmm10

	mulsd	%xmm9,  %xmm5

	movsd	 7 * SIZE(X), %xmm7

	mulsd	%xmm10, %xmm6

	movsd	 7 * SIZE(Y), %xmm11

	mulsd	%xmm11, %xmm7

#ifdef PREFETCH

	PREFETCH (PREFETCHSIZE +  0) - PREOFFSET(Y)

#endif

	addsd	%xmm4,  %xmm0

	movsd	 8 * SIZE(X), %xmm4

	addsd	%xmm5,  %xmm1

	movsd	 8 * SIZE(Y), %xmm8

	addsd	%xmm6,  %xmm2

	movsd	 9 * SIZE(X), %xmm5

	addsd	%xmm7,  %xmm3

	movsd	 9 * SIZE(Y), %xmm9

	movsd	10 * SIZE(X), %xmm6

	mulsd	%xmm8,  %xmm4

	movsd	10 * SIZE(Y), %xmm10

	mulsd	%xmm9,  %xmm5

	movsd	11 * SIZE(X), %xmm7

	mulsd	%xmm10, %xmm6

	movsd	11 * SIZE(Y), %xmm11

	mulsd	%xmm11, %xmm7

	addq	$8 * SIZE, X

	addq	$8 * SIZE, Y

	decq	%rax

	jg	.L11

	ALIGN_3

.L12:

	addsd	%xmm4,  %xmm0

	movsd	 4 * SIZE(X), %xmm4

	addsd	%xmm5,  %xmm1

	movsd	 4 * SIZE(Y), %xmm8

	addsd	%xmm6,  %xmm2

	movsd	 5 * SIZE(X), %xmm5

	addsd	%xmm7,  %xmm3

	movsd	 5 * SIZE(Y), %xmm9

	movsd	 6 * SIZE(X), %xmm6

	mulsd	%xmm8,  %xmm4

	movsd	 6 * SIZE(Y), %xmm10

	mulsd	%xmm9,  %xmm5

	movsd	 7 * SIZE(X), %xmm7

	mulsd	%xmm10, %xmm6

	movsd	 7 * SIZE(Y), %xmm11

	mulsd	%xmm11, %xmm7

	addsd	%xmm4,  %xmm0

	addsd	%xmm5,  %xmm1

	addsd	%xmm6,  %xmm2

	addsd	%xmm7,  %xmm3

	addq	$ 8 * SIZE, X

	addq	$ 8 * SIZE, Y

	ALIGN_3

.L14:

	testq	$7, N

	jle	.L999

	testq	$4, N

	jle	.L16

	movsd	 0 * SIZE(X), %xmm4

	movsd	 0 * SIZE(Y), %xmm8

	movsd	 1 * SIZE(X), %xmm5

	movsd	 1 * SIZE(Y), %xmm9

	movsd	 2 * SIZE(X), %xmm6

	mulsd	%xmm8,  %xmm4

	movsd	 2 * SIZE(Y), %xmm10

	mulsd	%xmm9,  %xmm5

	movsd	 3 * SIZE(X), %xmm7

	mulsd	%xmm10, %xmm6

	movsd	 3 * SIZE(Y), %xmm11

	mulsd	%xmm11, %xmm7

	addsd	%xmm4,  %xmm0

	addsd	%xmm5,  %xmm1

	addsd	%xmm6,  %xmm2

	addsd	%xmm7,  %xmm3

	addq	$4 * SIZE, X

	addq	$4 * SIZE, Y

	ALIGN_3

.L16:

	testq	$2, N

	jle	.L17

	movsd	 0 * SIZE(X), %xmm4

	movsd	 0 * SIZE(Y), %xmm8

	movsd	 1 * SIZE(X), %xmm5

	movsd	 1 * SIZE(Y), %xmm9

	mulsd	%xmm8,  %xmm4

	mulsd	%xmm9,  %xmm5

	addsd	%xmm4,  %xmm0

	addsd	%xmm5,  %xmm1

	addq	$2 * SIZE, X

	addq	$2 * SIZE, Y

	ALIGN_3

.L17:

	testq	$1, N

	jle	.L999

	movsd	 0 * SIZE(X), %xmm4

	movsd	 0 * SIZE(Y), %xmm8

	mulsd	%xmm8,  %xmm4

	addsd	%xmm4,  %xmm0

	jmp	.L999

	ALIGN_3

.L50:

	movq	N,  %rax

	sarq	$2, %rax

	jle	.L55

	ALIGN_3

.L53:

	movsd	0 * SIZE(X), %xmm4

	addq	INCX, X

	mulsd	0 * SIZE(Y), %xmm4

	addq	INCY, Y

	movsd	0 * SIZE(X), %xmm5

	addq	INCX, X

	mulsd	0 * SIZE(Y), %xmm5

	addq	INCY, Y

	movsd	0 * SIZE(X), %xmm6

	addq	INCX, X

	mulsd	0 * SIZE(Y), %xmm6

	addq	INCY, Y

	movsd	0 * SIZE(X), %xmm7

	addq	INCX, X

	mulsd	0 * SIZE(Y), %xmm7

	addq	INCY, Y

	addsd	%xmm4, %xmm0

	addsd	%xmm5, %xmm1

	addsd	%xmm6, %xmm2

	addsd	%xmm7, %xmm3

	decq	%rax

	jg	.L53

	ALIGN_3

.L55:

	movq	N, %rax

	andq	$3,   %rax

	jle	.L999

	ALIGN_3

.L56:

	movsd	0 * SIZE(X), %xmm4

	addq	INCX, X

	mulsd	0 * SIZE(Y), %xmm4

	addq	INCY, Y

	addsd	%xmm4, %xmm0

	decq	%rax

	jg	.L56

	ALIGN_3

.L999:

	addsd	%xmm1, %xmm0

	addsd	%xmm3, %xmm2

	addsd	%xmm2, %xmm0

	RESTOREREGISTERS

	ret

	EPILOGUE