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

/* 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 STACK_C		24 + STACK + ARGS(%esp)

#define STACK_S		32 + STACK + ARGS(%esp)

#define N	%ebx

#define X	%esi

#define INCX	%ecx

#define Y	%edi

#define INCY	%edx

#define	I	%eax

#include "l1param.h"

#define C	%xmm6

#define S	%xmm7

	PROLOGUE

	PROFCODE

	pushl	%edi

	pushl	%esi

	pushl	%ebx

	movl	STACK_N,     N

	movl	STACK_X,     X

	movl	STACK_INCX,  INCX

	movl	STACK_Y,     Y

	movl	STACK_INCY,  INCY

	leal	(, INCX, SIZE), INCX	

	leal	(, INCY, SIZE), INCY	

	movsd	STACK_C, C

	movsd	STACK_S, S

	pshufd	$0x44, C, C

	pshufd	$0x44, S, S

	cmpl	$0, N

	jle	.L999

	cmpl	$SIZE, INCX

	jne	.L50

	cmpl	$SIZE, INCY

	jne	.L50

	testl	$SIZE, X

	je	.L10

	movsd	0 * SIZE(Y), %xmm1

	movsd	0 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulsd	C, %xmm0

	mulsd	S, %xmm1

	mulsd	C, %xmm2

	mulsd	S, %xmm3

	addsd	%xmm1, %xmm0

	subsd	%xmm3, %xmm2

	movsd	%xmm0, 0 * SIZE(X)

	movsd	%xmm2, 0 * SIZE(Y)

	addl	$1 * SIZE, X

	addl	$1 * SIZE, Y

	decl	N

	jle	.L999

	ALIGN_2

.L10:

	testl	$SIZE, Y

	jne	.L20

	movl	N,  I

	sarl	$4, I

	jle	.L14

	ALIGN_3

.L11:

#ifdef PREFETCHW

	PREFETCHW (PREFETCHSIZE +  0) - PREOFFSET(X)

#endif

	movapd	0 * SIZE(Y), %xmm1

	movapd	0 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 0 * SIZE(X)

	movapd	%xmm2, 0 * SIZE(Y)

	movapd	2 * SIZE(Y), %xmm1

	movapd	2 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 2 * SIZE(X)

	movapd	%xmm2, 2 * SIZE(Y)

#ifdef PREFETCHW

	PREFETCHW (PREFETCHSIZE +  0) - PREOFFSET(Y)

#endif

	movapd	4 * SIZE(Y), %xmm1

	movapd	4 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 4 * SIZE(X)

	movapd	%xmm2, 4 * SIZE(Y)

	movapd	6 * SIZE(Y), %xmm1

	movapd	6 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 6 * SIZE(X)

	movapd	%xmm2, 6 * SIZE(Y)

#ifdef PREFETCHW

	PREFETCHW (PREFETCHSIZE + 64) - PREOFFSET(X)

#endif

	movapd	8 * SIZE(Y), %xmm1

	movapd	8 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 8 * SIZE(X)

	movapd	%xmm2, 8 * SIZE(Y)

	movapd	10 * SIZE(Y), %xmm1

	movapd	10 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 10 * SIZE(X)

	movapd	%xmm2, 10 * SIZE(Y)

#ifdef PREFETCHW

	PREFETCHW (PREFETCHSIZE + 64) - PREOFFSET(Y)

#endif

	movapd	12 * SIZE(Y), %xmm1

	movapd	12 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 12 * SIZE(X)

	movapd	%xmm2, 12 * SIZE(Y)

	movapd	14 * SIZE(Y), %xmm1

	movapd	14 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 14 * SIZE(X)

	movapd	%xmm2, 14 * SIZE(Y)

	addl	$16 * SIZE, X

	addl	$16 * SIZE, Y

	decl	I

	jg	.L11

	ALIGN_3

.L14:

	testl	$15, N

	jle	.L999

	testl	$8, N

	jle	.L15

	movapd	0 * SIZE(Y), %xmm1

	movapd	0 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 0 * SIZE(X)

	movapd	%xmm2, 0 * SIZE(Y)

	movapd	2 * SIZE(Y), %xmm1

	movapd	2 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 2 * SIZE(X)

	movapd	%xmm2, 2 * SIZE(Y)

	movapd	4 * SIZE(Y), %xmm1

	movapd	4 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 4 * SIZE(X)

	movapd	%xmm2, 4 * SIZE(Y)

	movapd	6 * SIZE(Y), %xmm1

	movapd	6 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 6 * SIZE(X)

	movapd	%xmm2, 6 * SIZE(Y)

	addl	$8 * SIZE, X

	addl	$8 * SIZE, Y

	ALIGN_3

.L15:

	testl	$4, N

	jle	.L16

	movapd	0 * SIZE(Y), %xmm1

	movapd	0 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 0 * SIZE(X)

	movapd	%xmm2, 0 * SIZE(Y)

	movapd	2 * SIZE(Y), %xmm1

	movapd	2 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 2 * SIZE(X)

	movapd	%xmm2, 2 * SIZE(Y)

	addl	$4 * SIZE, X

	addl	$4 * SIZE, Y

	ALIGN_3

.L16:

	testl	$2, N

	jle	.L17

	movapd	0 * SIZE(Y), %xmm1

	movapd	0 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 0 * SIZE(X)

	movapd	%xmm2, 0 * SIZE(Y)

	addl	$2 * SIZE, X

	addl	$2 * SIZE, Y

	ALIGN_3

.L17:

	testl	$1, N

	jle	.L999

	movsd	0 * SIZE(Y), %xmm1

	movsd	0 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulsd	C, %xmm0

	mulsd	S, %xmm1

	mulsd	C, %xmm2

	mulsd	S, %xmm3

	addsd	%xmm1, %xmm0

	subsd	%xmm3, %xmm2

	movsd	%xmm0, 0 * SIZE(X)

	movsd	%xmm2, 0 * SIZE(Y)

	jmp	.L999

	ALIGN_3

.L20:

	movapd	-1 * SIZE(Y), %xmm1

	movl	N,  I

	sarl	$4, I

	jle	.L24

	ALIGN_3

.L21:

#ifdef PREFETCHW

	PREFETCHW (PREFETCHSIZE +  0) - PREOFFSET(X)

#endif

	movapd	1 * SIZE(Y), %xmm4

	movapd	0 * SIZE(X), %xmm0

	SHUFPD_1 %xmm4, %xmm1

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 0 * SIZE(X)

	movlpd	%xmm2, 0 * SIZE(Y)

	movhpd	%xmm2, 1 * SIZE(Y)

	movapd	3 * SIZE(Y), %xmm1

	movapd	2 * SIZE(X), %xmm0

	SHUFPD_1 %xmm1, %xmm4

	movapd	%xmm4, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm4

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm4, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 2 * SIZE(X)

	movlpd	%xmm2, 2 * SIZE(Y)

	movhpd	%xmm2, 3 * SIZE(Y)

	movapd	5 * SIZE(Y), %xmm4

	movapd	4 * SIZE(X), %xmm0

	SHUFPD_1 %xmm4, %xmm1

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 4 * SIZE(X)

	movlpd	%xmm2, 4 * SIZE(Y)

	movhpd	%xmm2, 5 * SIZE(Y)

	movapd	7 * SIZE(Y), %xmm1

	movapd	6 * SIZE(X), %xmm0

	SHUFPD_1 %xmm1, %xmm4

	movapd	%xmm4, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm4

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm4, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 6 * SIZE(X)

	movlpd	%xmm2, 6 * SIZE(Y)

	movhpd	%xmm2, 7 * SIZE(Y)

#ifdef PREFETCHW

	PREFETCHW (PREFETCHSIZE +  0) - PREOFFSET(Y)

#endif

	movapd	9 * SIZE(Y), %xmm4

	movapd	8 * SIZE(X), %xmm0

	SHUFPD_1 %xmm4, %xmm1

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 8 * SIZE(X)

	movlpd	%xmm2, 8 * SIZE(Y)

	movhpd	%xmm2, 9 * SIZE(Y)

#ifdef PREFETCHW

	PREFETCHW (PREFETCHSIZE + 64) - PREOFFSET(X)

#endif

	movapd	11 * SIZE(Y), %xmm1

	movapd	10 * SIZE(X), %xmm0

	SHUFPD_1 %xmm1, %xmm4

	movapd	%xmm4, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm4

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm4, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 10 * SIZE(X)

	movlpd	%xmm2, 10 * SIZE(Y)

	movhpd	%xmm2, 11 * SIZE(Y)

	movapd	13 * SIZE(Y), %xmm4

	movapd	12 * SIZE(X), %xmm0

	SHUFPD_1 %xmm4, %xmm1

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 12 * SIZE(X)

	movlpd	%xmm2, 12 * SIZE(Y)

	movhpd	%xmm2, 13 * SIZE(Y)

#ifdef PREFETCHW

	PREFETCHW (PREFETCHSIZE + 64) - PREOFFSET(Y)

#endif

	movapd	15 * SIZE(Y), %xmm1

	movapd	14 * SIZE(X), %xmm0

	SHUFPD_1 %xmm1, %xmm4

	movapd	%xmm4, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm4

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm4, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 14 * SIZE(X)

	movlpd	%xmm2, 14 * SIZE(Y)

	movhpd	%xmm2, 15 * SIZE(Y)

	addl	$16 * SIZE, X

	addl	$16 * SIZE, Y

	decl	I

	jg	.L21

	ALIGN_3

.L24:

	testl	$15, N

	jle	.L999

	testl	$8, N

	jle	.L25

	movapd	1 * SIZE(Y), %xmm4

	movapd	0 * SIZE(X), %xmm0

	SHUFPD_1 %xmm4, %xmm1

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 0 * SIZE(X)

	movlpd	%xmm2, 0 * SIZE(Y)

	movhpd	%xmm2, 1 * SIZE(Y)

	movapd	3 * SIZE(Y), %xmm1

	movapd	2 * SIZE(X), %xmm0

	SHUFPD_1 %xmm1, %xmm4

	movapd	%xmm4, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm4

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm4, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 2 * SIZE(X)

	movlpd	%xmm2, 2 * SIZE(Y)

	movhpd	%xmm2, 3 * SIZE(Y)

	movapd	5 * SIZE(Y), %xmm4

	movapd	4 * SIZE(X), %xmm0

	SHUFPD_1 %xmm4, %xmm1

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 4 * SIZE(X)

	movlpd	%xmm2, 4 * SIZE(Y)

	movhpd	%xmm2, 5 * SIZE(Y)

	movapd	7 * SIZE(Y), %xmm1

	movapd	6 * SIZE(X), %xmm0

	SHUFPD_1 %xmm1, %xmm4

	movapd	%xmm4, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm4

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm4, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 6 * SIZE(X)

	movlpd	%xmm2, 6 * SIZE(Y)

	movhpd	%xmm2, 7 * SIZE(Y)

	addl	$8 * SIZE, X

	addl	$8 * SIZE, Y

	ALIGN_3

.L25:

	testl	$4, N

	jle	.L26

	movapd	1 * SIZE(Y), %xmm4

	movapd	0 * SIZE(X), %xmm0

	SHUFPD_1 %xmm4, %xmm1

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 0 * SIZE(X)

	movlpd	%xmm2, 0 * SIZE(Y)

	movhpd	%xmm2, 1 * SIZE(Y)

	movapd	3 * SIZE(Y), %xmm1

	movapd	2 * SIZE(X), %xmm0

	SHUFPD_1 %xmm1, %xmm4

	movapd	%xmm4, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm4

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm4, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 2 * SIZE(X)

	movlpd	%xmm2, 2 * SIZE(Y)

	movhpd	%xmm2, 3 * SIZE(Y)

	addl	$4 * SIZE, X

	addl	$4 * SIZE, Y

	ALIGN_3

.L26:

	testl	$2, N

	jle	.L27

	movapd	1 * SIZE(Y), %xmm4

	movapd	0 * SIZE(X), %xmm0

	SHUFPD_1 %xmm4, %xmm1

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulpd	C, %xmm0

	mulpd	S, %xmm1

	mulpd	C, %xmm2

	mulpd	S, %xmm3

	addpd	%xmm1, %xmm0

	subpd	%xmm3, %xmm2

	movapd	%xmm0, 0 * SIZE(X)

	movlpd	%xmm2, 0 * SIZE(Y)

	movhpd	%xmm2, 1 * SIZE(Y)

	movapd	%xmm4, %xmm1

	addl	$2 * SIZE, X

	addl	$2 * SIZE, Y

	ALIGN_3

.L27:

	testl	$1, N

	jle	.L999

	unpckhpd %xmm1, %xmm1

	movsd	0 * SIZE(X), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3

	mulsd	C, %xmm0

	mulsd	S, %xmm1

	mulsd	C, %xmm2

	mulsd	S, %xmm3

	addsd	%xmm1, %xmm0

	subsd	%xmm3, %xmm2

	movsd	%xmm0, 0 * SIZE(X)

	movsd	%xmm2, 0 * SIZE(Y)

	jmp	.L999

	ALIGN_3

.L50:

	movl	N,  I

	cmpl	$0, INCX

	je  .L56

	cmpl	$0, INCY

	je  .L56

	sarl	$2, I

	jle	.L55

	ALIGN_3

.L53:

	movsd	(Y), %xmm1

	movhpd	(Y, INCY), %xmm1

	movsd	(X), %xmm0

	movhpd	(X, INCX), %xmm0

	movapd	%xmm1, %xmm2

	movapd	%xmm0, %xmm3