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

/* 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 STACK	12

#define ARGS     0

#define STACK_N		 4 + STACK + ARGS(%esp)

#define STACK_X		 8 + STACK + ARGS(%esp)

#define STACK_INCX	12 + STACK + ARGS(%esp)

#define STACK_Y		16 + STACK + ARGS(%esp)

#define STACK_INCY	20 + STACK + ARGS(%esp)

#define N	%ecx

#define X	%esi

#define INCX	%ebx

#define Y	%edi

#define INCY	%edx

#define PREFETCHSIZE 84

	PROLOGUE

	pushl	%edi

	pushl	%esi

	pushl	%ebx

	PROFCODE

	movl	STACK_N,     N

	movl	STACK_X,     X

	movl	STACK_INCX,  INCX

	movl	STACK_Y,     Y

	movl	STACK_INCY,  INCY

#ifdef F_INTERFACE

	movl	(N),   N		# N

	movl	(INCX),INCX		# INCX

	movl	(INCY),INCY		# INCY

#endif

	leal	(, INCX, SIZE), INCX	

	leal	(, INCY, SIZE), INCY	

	pxor	%xmm0, %xmm0

	pxor	%xmm1, %xmm1

	pxor	%xmm2, %xmm2

	pxor	%xmm3, %xmm3

	cmpl	$0, N

	jle	.L999

	cmpl	$SIZE, INCX

	jne	.L50

	cmpl	$SIZE, INCY

	jne	.L50

	testl	$SIZE, Y

	je	.L10

	movsd	0 * SIZE(X), %xmm0

	mulsd	0 * SIZE(Y), %xmm0

	addl	$1 * SIZE, X

	addl	$1 * SIZE, Y

	decl	N

	ALIGN_2

.L10:

	movl	N,  %eax

	sarl	$4, %eax

	jle	.L24

	movlpd	 0 * SIZE(X), %xmm4

	movhpd	 1 * SIZE(X), %xmm4

	movlpd	 2 * SIZE(X), %xmm5

	movhpd	 3 * SIZE(X), %xmm5

	movlpd	 4 * SIZE(X), %xmm6

	movhpd	 5 * SIZE(X), %xmm6

	movlpd	 6 * SIZE(X), %xmm7

	movhpd	 7 * SIZE(X), %xmm7

	mulpd	 0 * SIZE(Y), %xmm4

	mulpd	 2 * SIZE(Y), %xmm5

	mulpd	 4 * SIZE(Y), %xmm6

	mulpd	 6 * SIZE(Y), %xmm7

	decl	%eax

	jle	.L22

	ALIGN_3

.L21:

	prefetch	(PREFETCHSIZE  + 0) * SIZE(Y)

	addpd	%xmm4,  %xmm0

	movlpd	 8 * SIZE(X), %xmm4

	movhpd	 9 * SIZE(X), %xmm4

	addpd	%xmm5,  %xmm1

	movlpd	10 * SIZE(X), %xmm5

	movhpd	11 * SIZE(X), %xmm5

	addpd	%xmm6,  %xmm2

	movlpd	12 * SIZE(X), %xmm6

	movhpd	13 * SIZE(X), %xmm6

	addpd	%xmm7,  %xmm3

	movlpd	14 * SIZE(X), %xmm7

	movhpd	15 * SIZE(X), %xmm7

	mulpd	 8 * SIZE(Y), %xmm4

	mulpd	10 * SIZE(Y), %xmm5

	mulpd	12 * SIZE(Y), %xmm6

	mulpd	14 * SIZE(Y), %xmm7

	prefetch	(PREFETCHSIZE  + 8) * SIZE(Y)

	addpd	%xmm4,  %xmm0

	movlpd	16 * SIZE(X), %xmm4

	movhpd	17 * SIZE(X), %xmm4

	addpd	%xmm5,  %xmm1

	movlpd	18 * SIZE(X), %xmm5

	movhpd	19 * SIZE(X), %xmm5

	addpd	%xmm6,  %xmm2

	movlpd	20 * SIZE(X), %xmm6

	movhpd	21 * SIZE(X), %xmm6

	addpd	%xmm7,  %xmm3

	movlpd	22 * SIZE(X), %xmm7

	movhpd	23 * SIZE(X), %xmm7

	mulpd	16 * SIZE(Y), %xmm4

	mulpd	18 * SIZE(Y), %xmm5

	mulpd	20 * SIZE(Y), %xmm6

	mulpd	22 * SIZE(Y), %xmm7

	addl	$16 * SIZE, X

	addl	$16 * SIZE, Y

	decl	%eax

	jg	.L21

	ALIGN_3

.L22:

	addpd	%xmm4,  %xmm0

	movlpd	 8 * SIZE(X), %xmm4

	movhpd	 9 * SIZE(X), %xmm4

	addpd	%xmm5,  %xmm1

	movlpd	10 * SIZE(X), %xmm5

	movhpd	11 * SIZE(X), %xmm5

	addpd	%xmm6,  %xmm2

	movlpd	12 * SIZE(X), %xmm6

	movhpd	13 * SIZE(X), %xmm6

	addpd	%xmm7,  %xmm3

	movlpd	14 * SIZE(X), %xmm7

	movhpd	15 * SIZE(X), %xmm7

	mulpd	 8 * SIZE(Y), %xmm4

	mulpd	10 * SIZE(Y), %xmm5

	mulpd	12 * SIZE(Y), %xmm6

	mulpd	14 * SIZE(Y), %xmm7

	addpd	%xmm4,  %xmm0

	addpd	%xmm5,  %xmm1

	addpd	%xmm6,  %xmm2

	addpd	%xmm7,  %xmm3

	addl	$16 * SIZE, X

	addl	$16 * SIZE, Y

	ALIGN_3

.L24:

	testl	$15, N

	jle	.L999

	testl	$8, N

	jle	.L25

	movlpd	 0 * SIZE(X), %xmm4

	movhpd	 1 * SIZE(X), %xmm4

	movlpd	 2 * SIZE(X), %xmm5

	movhpd	 3 * SIZE(X), %xmm5

	movlpd	 4 * SIZE(X), %xmm6

	movhpd	 5 * SIZE(X), %xmm6

	movlpd	 6 * SIZE(X), %xmm7

	movhpd	 7 * SIZE(X), %xmm7

	mulpd	 0 * SIZE(Y), %xmm4

	mulpd	 2 * SIZE(Y), %xmm5

	mulpd	 4 * SIZE(Y), %xmm6

	mulpd	 6 * SIZE(Y), %xmm7

	addpd	%xmm4,  %xmm0

	addpd	%xmm5,  %xmm1

	addpd	%xmm6,  %xmm2

	addpd	%xmm7,  %xmm3

	addl	$8 * SIZE, X

	addl	$8 * SIZE, Y

	ALIGN_3

.L25:

	testl	$4, N

	jle	.L26

	movlpd	 0 * SIZE(X), %xmm4

	movhpd	 1 * SIZE(X), %xmm4

	movlpd	 2 * SIZE(X), %xmm5

	movhpd	 3 * SIZE(X), %xmm5

	mulpd	 0 * SIZE(Y), %xmm4

	mulpd	 2 * SIZE(Y), %xmm5

	addpd	%xmm4,  %xmm0

	addpd	%xmm5,  %xmm1

	addl	$4 * SIZE, X

	addl	$4 * SIZE, Y

	ALIGN_3

.L26:

	testl	$2, N

	jle	.L27

	movlpd	 0 * SIZE(X), %xmm4

	movhpd	 1 * SIZE(X), %xmm4

	mulpd	 0 * SIZE(Y), %xmm4

	addpd	%xmm4,  %xmm0

	addl	$2 * SIZE, X

	addl	$2 * SIZE, Y

	ALIGN_3

.L27:

	testl	$1, N

	jle	.L999

	movsd	 0 * SIZE(X), %xmm4

	mulsd	 0 * SIZE(Y), %xmm4

	addsd	%xmm4,  %xmm0

	jmp	.L999

	ALIGN_3

.L50:

#ifdef F_INTERFACE

	testl	INCX, INCX

	jge	.L51

	movl	N, %eax

	decl	%eax

	imull	INCX, %eax

	subl	%eax, X

	ALIGN_3

.L51:

	testl	INCY, INCY

	jge	.L52

	movl	N, %eax

	decl	%eax

	imull	INCY, %eax

	subl	%eax, Y

	ALIGN_3

.L52:

#endif

	movl	N,  %eax

	sarl	$2, %eax

	jle	.L55

	ALIGN_3

.L53:

	movsd	0 * SIZE(X), %xmm4

	addl	INCX, X

	mulsd	0 * SIZE(Y), %xmm4

	addl	INCY, Y

	movsd	0 * SIZE(X), %xmm5

	addl	INCX, X

	mulsd	0 * SIZE(Y), %xmm5

	addl	INCY, Y

	movsd	0 * SIZE(X), %xmm6

	addl	INCX, X

	mulsd	0 * SIZE(Y), %xmm6

	addl	INCY, Y

	movsd	0 * SIZE(X), %xmm7

	addl	INCX, X

	mulsd	0 * SIZE(Y), %xmm7

	addl	INCY, Y

	addsd	%xmm4, %xmm0

	addsd	%xmm5, %xmm1

	addsd	%xmm6, %xmm2

	addsd	%xmm7, %xmm3

	decl	%eax

	jg	.L53

	ALIGN_3

.L55:

	movl	N, %eax

	andl	$3,   %eax

	jle	.L999

	ALIGN_3

.L56:

	movsd	0 * SIZE(X), %xmm4

	addl	INCX, X

	mulsd	0 * SIZE(Y), %xmm4

	addl	INCY, Y

	addsd	%xmm4, %xmm0

	decl	%eax

	jg	.L56

	ALIGN_3

.L999:

	addpd	%xmm1, %xmm0

	addpd	%xmm3, %xmm2

	addpd	%xmm2, %xmm0

#if !defined(HAVE_SSE3) || defined(__INTERIX)

	movapd	%xmm0, %xmm1

	unpckhpd	%xmm0, %xmm0

	addsd	%xmm1, %xmm0

#else

	haddpd	%xmm0, %xmm0

#endif

	movsd	%xmm0, STACK_N

	fldl	STACK_N

	popl	%ebx

	popl	%esi

	popl	%edi

	ret

	EPILOGUE