OpenBLAS/kernel/alpha/sum.S

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

#define ASSEMBLER
#include "common.h"
#include "version.h"

#define PREFETCHSIZE	88

#define N	$16
#define X	$17
#define INCX	$18
#define I	$19

#define s0	$f0
#define s1	$f1
#define s2	$f10
#define s3	$f11

#define a0	$f12
#define a1	$f13
#define a2	$f14
#define a3	$f15
#define a4	$f16
#define a5	$f17
#define a6	$f18
#define a7	$f19

#define t0	$f20
#define t1	$f21
#define t2	$f22
#define t3	$f23

	PROLOGUE
	PROFCODE

	fclr	s0
	unop
	fclr	t0
	ble	N,  $L999

	sra	N, 3, I
	fclr	s1
	fclr	s2
	ble	I, $L15

	LD	a0,  0 * SIZE(X)
	fclr	t1
	SXADDQ	INCX, X, X
	fclr	t2

	LD	a1,  0 * SIZE(X)
	fclr	t3
	SXADDQ	INCX, X, X
	fclr	s3

	LD	a2,  0 * SIZE(X)
	SXADDQ	INCX, X, X
	LD	a3,  0 * SIZE(X)
	SXADDQ	INCX, X, X

	LD	a4,  0 * SIZE(X)
	SXADDQ	INCX, X, X
	LD	a5,  0 * SIZE(X)
	SXADDQ	INCX, X, X

	lda	I,  -1(I)
	ble	I, $L13
	.align 4

$L12:
	ADD	s0, t0, s0
	ldl	$31, PREFETCHSIZE * 2 * SIZE(X)
	fmov	a0, t0
	lda	I,  -1(I)

	ADD	s1, t1, s1
	LD	a6,  0 * SIZE(X)
	fmov	a1, t1
	SXADDQ	INCX, X, X

	ADD	s2, t2, s2
	LD	a7,  0 * SIZE(X)
	fmov	a2, t2
	SXADDQ	INCX, X, X

	ADD	s3, t3, s3
	LD	a0,  0 * SIZE(X)
	fmov	a3, t3
	SXADDQ	INCX, X, X

	ADD	s0, t0, s0
	LD	a1,  0 * SIZE(X)
	fmov	a4, t0
	SXADDQ	INCX, X, X

	ADD	s1, t1, s1
	LD	a2,  0 * SIZE(X)
	fmov	a5, t1
	SXADDQ	INCX, X, X

	ADD	s2, t2, s2
	LD	a3,  0 * SIZE(X)
	fmov	a6, t2
	SXADDQ	INCX, X, X

	ADD	s3, t3, s3
	LD	a4,  0 * SIZE(X)
	fmov	a7, t3
	SXADDQ	INCX, X, X

	LD	a5,  0 * SIZE(X)
	unop
	SXADDQ	INCX, X, X
	bne	I, $L12
	.align 4

$L13:
	ADD	s0, t0, s0
	LD	a6,  0 * SIZE(X)
	fmov	a0, t0
	SXADDQ	INCX, X, X

	ADD	s1, t1, s1
	LD	a7,  0 * SIZE(X)
	fmov	a1, t1
	SXADDQ	INCX, X, X

	ADD	s2, t2, s2
	fmov	a2, t2
	ADD	s3, t3, s3
	fmov	a3, t3

	ADD	s0, t0, s0
	fmov	a4, t0
	ADD	s1, t1, s1
	fmov	a5, t1
	ADD	s2, t2, s2
	fmov	a6, t2
	ADD	s3, t3, s3
	fmov	a7, t3

	ADD	s1, t1, s1
	ADD	s2, t2, s2
	ADD	s3, t3, s3

	ADD	s0, s1, s0
	ADD	s2, s3, s2
	.align 4

$L15:
	and	N, 7, I
	ADD	s0, s2, s0
	unop
	ble	I, $L999
	.align 4

$L17:
	ADD	s0, t0, s0
	LD	a0,  0 * SIZE(X)
	SXADDQ	INCX, X, X
	fmov	a0, t0

	lda	I,  -1(I)
	bne	I, $L17
	.align 4

$L999:
	ADD	s0, t0, s0
	ret
	EPILOGUE