dnl  IA-64 mpn_copyi -- copy limb vector, incrementing.

dnl  Contributed to the GNU project by Torbjorn Granlund.

dnl  Copyright 2001, 2002, 2004 Free Software Foundation, Inc.

dnl  This file is part of the GNU MP Library.

dnl

dnl  The GNU MP Library is free software; you can redistribute it and/or modify

dnl  it under the terms of either:

dnl

dnl    * the GNU Lesser General Public License as published by the Free

dnl      Software Foundation; either version 3 of the License, or (at your

dnl      option) any later version.

dnl

dnl  or

dnl

dnl    * the GNU General Public License as published by the Free Software

dnl      Foundation; either version 2 of the License, or (at your option) any

dnl      later version.

dnl

dnl  or both in parallel, as here.

dnl

dnl  The GNU MP Library is distributed in the hope that it will be useful, but

dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY

dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

dnl  for more details.

dnl

dnl  You should have received copies of the GNU General Public License and the

dnl  GNU Lesser General Public License along with the GNU MP Library.  If not,

dnl  see https://www.gnu.org/licenses/.

include(`../config.m4')

C         cycles/limb

C Itanium:    1

C Itanium 2:  0.5

C INPUT PARAMETERS

C rp = r32

C sp = r33

C n = r34

ASM_START()

PROLOGUE(mpn_copyi)

	.prologue

	.save ar.lc, r2

	.body

ifdef(`HAVE_ABI_32',

`	addp4		r32 = 0, r32

	addp4		r33 = 0, r33

	sxt4		r34 = r34

	;;

')

{.mmi

	nop		0

	nop		0

	mov.i		r2 = ar.lc

}

{.mmi

	and		r14 = 3, r34

	cmp.ge		p14, p15 = 3, r34

	add		r34 = -4, r34

	;;

}

{.mmi

	cmp.eq		p8, p0 = 1, r14

	cmp.eq		p10, p0 = 2, r14

	cmp.eq		p12, p0 = 3, r14

}

{.bbb

  (p8)	br.dptk		.Lb01

  (p10)	br.dptk		.Lb10

  (p12)	br.dptk		.Lb11

}

.Lb00:	C  n = 0, 4, 8, 12, ...

  (p14)	br.dptk		.Ls00

	;;

	add		r21 = 8, r33

	ld8		r16 = [r33], 16

	shr		r15 = r34, 2

	;;

	ld8		r17 = [r21], 16

	mov.i		ar.lc = r15

	ld8		r18 = [r33], 16

	add		r20 = 8, r32

	;;

	ld8		r19 = [r21], 16

	br.cloop.dptk	.Loop

	;;

	br.sptk		.Lend

	;;

.Lb01:	C  n = 1, 5, 9, 13, ...

	add		r21 = 0, r33

	add		r20 = 0, r32

	add		r33 = 8, r33

	add		r32 = 8, r32

	;;

	ld8		r19 = [r21], 16

	shr		r15 = r34, 2

  (p14)	br.dptk		.Ls01

	;;

	ld8		r16 = [r33], 16

	mov.i		ar.lc = r15

	;;

	ld8		r17 = [r21], 16

	ld8		r18 = [r33], 16

	br.sptk		.Li01

	;;

.Lb10:	C  n = 2,6, 10, 14, ...

	add		r21 = 8, r33

	add		r20 = 8, r32

	ld8		r18 = [r33], 16

	shr		r15 = r34, 2

	;;

	ld8		r19 = [r21], 16

	mov.i		ar.lc = r15

  (p14)	br.dptk		.Ls10

	;;

	ld8		r16 = [r33], 16

	ld8		r17 = [r21], 16

	br.sptk		.Li10

	;;

.Lb11:	C  n = 3, 7, 11, 15, ...

	add		r21 = 0, r33

	add		r20 = 0, r32

	add		r33 = 8, r33

	add		r32 = 8, r32

	;;

	ld8		r17 = [r21], 16

	shr		r15 = r34, 2

	;;

	ld8		r18 = [r33], 16

	mov.i		ar.lc = r15

	ld8		r19 = [r21], 16

  (p14)	br.dptk		.Ls11

	;;

	ld8		r16 = [r33], 16

	br.sptk		.Li11

	;;

	ALIGN(32)

.Loop:

.Li00:

{.mmb

	st8		[r32] = r16, 16

	ld8		r16 = [r33], 16

	nop.b		0

}

.Li11:

{.mmb

	st8		[r20] = r17, 16

	ld8		r17 = [r21], 16

	nop.b		0

	;;

}

.Li10:

{.mmb

	st8		[r32] = r18, 16

	ld8		r18 = [r33], 16

	nop.b		0

}

.Li01:

{.mmb

	st8		[r20] = r19, 16

	ld8		r19 = [r21], 16

	br.cloop.dptk	.Loop

	;;

}

.Lend:	st8		[r32] = r16, 16

.Ls11:	st8		[r20] = r17, 16

	;;

.Ls10:	st8		[r32] = r18, 16

.Ls01:	st8		[r20] = r19, 16

.Ls00:	mov.i		ar.lc = r2

	br.ret.sptk.many b0

EPILOGUE()

ASM_END()