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

/* 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

#if !defined(DOUBLE) && !defined(XDOUBLE)

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

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

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

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

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

#define STACK_INCY	24 + STACK + ARGS(%esp)

#else

#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)

#endif

	PROLOGUE

	pushl	%edi

	pushl	%esi

	pushl	%ebx

	PROFCODE

#if defined(F_INTERFACE_GFORT) || defined(F_INTERFACE_G95)

	EMMS

#endif

#define N	%ebx

#define X	%esi

#define INCX	%ecx

#define Y	%edi

#define INCY	%edx

	movl	STACK_N,     N

	movl	STACK_X,     X

	movl	STACK_INCX,  INCX

	movl	STACK_Y,     Y

	movl	STACK_INCY,  INCY

#if defined(F_INTERFACE)

	movl	(N),N

	movl	(INCX),INCX

	movl	(INCY),INCY

#endif

	testl	N, N

	jle	.L88

	fldz

	fldz

	fldz

	fldz

	addl	INCX, INCX

	addl	INCY, INCY

	leal	(, INCX, SIZE), INCX	

	leal	(, INCY, SIZE), INCY	

	cmpl	$2 * SIZE, INCX

	jne	.L14

	cmpl	$2 * SIZE, INCY

	jne	.L14

	movl	N,  %eax

	sarl	$2, %eax

	jle	.L15

	FLD	 0 * SIZE(X)

	ALIGN_3

.L16:

	FLD	 0 * SIZE(Y)

	PADDING fmul	%st(1)

	faddp	%st, %st(2)

	FMUL	 1 * SIZE(Y)

	faddp	%st, %st(2)

	FLD	 1 * SIZE(X)

	FLD	 0 * SIZE(Y)

	PADDING fmul	%st(1)

	faddp	%st, %st(4)

	FMUL	 1 * SIZE(Y)

	faddp	%st, %st(4)

	FLD	 2 * SIZE(X)

	FLD	 2 * SIZE(Y)

	PADDING fmul	%st(1)

	faddp	%st, %st(2)

	FMUL	 3 * SIZE(Y)

	faddp	%st, %st(2)

	FLD	 3 * SIZE(X)

	FLD	 2 * SIZE(Y)

	PADDING fmul	%st(1)

	faddp	%st, %st(4)

	FMUL	 3 * SIZE(Y)

	faddp	%st, %st(4)

	FLD	 4 * SIZE(X)

	FLD	 4 * SIZE(Y)

	PADDING fmul	%st(1)

	faddp	%st, %st(2)

	FMUL	 5 * SIZE(Y)

	faddp	%st, %st(2)

	FLD	 5 * SIZE(X)

	FLD	 4 * SIZE(Y)

	PADDING fmul	%st(1)

	faddp	%st, %st(4)

	FMUL	 5 * SIZE(Y)

	faddp	%st, %st(4)

	FLD	 6 * SIZE(X)

	FLD	 6 * SIZE(Y)

	PADDING fmul	%st(1)

	faddp	%st, %st(2)

	FMUL	 7 * SIZE(Y)

	faddp	%st, %st(2)

	FLD	 7 * SIZE(X)

	FLD	 6 * SIZE(Y)

	PADDING fmul	%st(1)

	faddp	%st, %st(4)

	FMUL	 7 * SIZE(Y)

	faddp	%st, %st(4)

	FLD	 8 * SIZE(X)

	prefetch	32 * SIZE(X)

	addl	$8 * SIZE, X

	addl	$8 * SIZE, Y

	decl	%eax

	jg	.L16

	ffreep	%st(0)

	ALIGN_3

.L15:

	movl	N,  %eax

	andl	$3, %eax

	jle	.L27

	ALIGN_3

.L22:

	FLD	 0 * SIZE(X)

	FLD	 0 * SIZE(Y)

	fmul	%st(1)

	faddp	%st, %st(2)

	FMUL	 1 * SIZE(Y)

	faddp	%st, %st(2)

	FLD	 1 * SIZE(X)

	FLD	 0 * SIZE(Y)

	fmul	%st(1)

	faddp	%st, %st(4)

	FMUL	 1 * SIZE(Y)

	faddp	%st, %st(4)

	addl	$2 * SIZE, X

	addl	$2 * SIZE, Y

	decl	%eax

	jg	.L22

	jmp	.L27

	ALIGN_3

.L14:

#ifdef F_INTERFACE

	testl	INCX, INCX		# if (incx < 0)

	jge	.L28

	movl	N, %eax

	decl	%eax

	imull	INCX, %eax

	subl	%eax, X

	ALIGN_3

.L28:

	testl	INCY, INCY		# if (incy < 0)

	jge	.L29

	movl	N, %eax

	decl	%eax

	imull	INCY, %eax

	subl	%eax, Y

	ALIGN_3

.L29:

#endif

	movl	N,  %eax

	sarl	$1, %eax

	jle	.L30

	ALIGN_3

.L31:

	FLD	 0 * SIZE(X)

	FLD	 0 * SIZE(Y)

	fmul	%st(1)

	faddp	%st, %st(2)

	FMUL	 1 * SIZE(Y)

	faddp	%st, %st(2)

	FLD	 1 * SIZE(X)

	FLD	 0 * SIZE(Y)

	fmul	%st(1)

	faddp	%st, %st(4)

	FMUL	 1 * SIZE(Y)

	faddp	%st, %st(4)

	addl	INCX, X

	FLD	 0 * SIZE(X)

	addl	INCY, Y

	FLD	 0 * SIZE(Y)

	fmul	%st(1)

	faddp	%st, %st(2)

	FMUL	 1 * SIZE(Y)

	faddp	%st, %st(2)

	FLD	 1 * SIZE(X)

	FLD	 0 * SIZE(Y)

	fmul	%st(1)

	faddp	%st, %st(4)

	FMUL	 1 * SIZE(Y)

	faddp	%st, %st(4)

	addl	INCX, X

	addl	INCY, Y

	decl	%eax

	jg	.L31

	ALIGN_3

.L30:

	movl	N,  %eax

	andl	$1, %eax

	jle	.L27

	ALIGN_3

.L37:

	FLD	 0 * SIZE(X)

	FLD	 0 * SIZE(Y)

	fmul	%st(1)

	faddp	%st, %st(2)

	FMUL	 1 * SIZE(Y)

	faddp	%st, %st(2)

	FLD	 1 * SIZE(X)

	FLD	 0 * SIZE(Y)

	fmul	%st(1)

	faddp	%st, %st(4)

	FMUL	 1 * SIZE(Y)

	faddp	%st, %st(4)

	ALIGN_3

.L27:

#ifndef CONJ

	fsubp	%st, %st(3)

	faddp	%st, %st(1)

#else

	faddp	%st, %st(3)

	fsubp	%st, %st(1)

#endif

#if !defined(DOUBLE) && !defined(XDOUBLE)

	subl	$2 * SIZE, %esp

	FST	1 * SIZE(%esp)

	FST	0 * SIZE(%esp)

	movl	0 * SIZE(%esp), %eax

	movl	1 * SIZE(%esp), %edx

	addl	$2 * SIZE, %esp

#else

	movl	RESULT, %eax

	FST	1 * SIZE(%eax)

	FST	0 * SIZE(%eax)

#endif

	popl	%ebx

	popl	%esi

	popl	%edi

#if defined(F_INTERFACE) && defined(F_PATHSCALE)

	ret	$0x4

#else

	ret

#endif

	ALIGN_3

.L88:

#if !defined(DOUBLE) && !defined(XDOUBLE)

	xor	%eax, %eax

	xor	%edx, %edx

#else

	movl	RESULT, %eax

	fldz

	fldz

	FST	1 * SIZE(%eax)

	FST	0 * SIZE(%eax)

#endif

	popl	%ebx

	popl	%esi

	popl	%edi

#if defined(F_INTERFACE) && defined(F_PATHSCALE)

	ret	$0x4

#else

	ret

#endif

	EPILOGUE