github.com/aergoio/aergo@v1.3.1/libtool/src/gmp-6.1.2/mpn/ia64/copyi.asm (about)

     1  dnl  IA-64 mpn_copyi -- copy limb vector, incrementing.
     2  
     3  dnl  Contributed to the GNU project by Torbjorn Granlund.
     4  
     5  dnl  Copyright 2001, 2002, 2004 Free Software Foundation, Inc.
     6  
     7  dnl  This file is part of the GNU MP Library.
     8  dnl
     9  dnl  The GNU MP Library is free software; you can redistribute it and/or modify
    10  dnl  it under the terms of either:
    11  dnl
    12  dnl    * the GNU Lesser General Public License as published by the Free
    13  dnl      Software Foundation; either version 3 of the License, or (at your
    14  dnl      option) any later version.
    15  dnl
    16  dnl  or
    17  dnl
    18  dnl    * the GNU General Public License as published by the Free Software
    19  dnl      Foundation; either version 2 of the License, or (at your option) any
    20  dnl      later version.
    21  dnl
    22  dnl  or both in parallel, as here.
    23  dnl
    24  dnl  The GNU MP Library is distributed in the hope that it will be useful, but
    25  dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
    26  dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    27  dnl  for more details.
    28  dnl
    29  dnl  You should have received copies of the GNU General Public License and the
    30  dnl  GNU Lesser General Public License along with the GNU MP Library.  If not,
    31  dnl  see https://www.gnu.org/licenses/.
    32  
    33  include(`../config.m4')
    34  
    35  C         cycles/limb
    36  C Itanium:    1
    37  C Itanium 2:  0.5
    38  
    39  C INPUT PARAMETERS
    40  C rp = r32
    41  C sp = r33
    42  C n = r34
    43  
    44  ASM_START()
    45  PROLOGUE(mpn_copyi)
    46  	.prologue
    47  	.save ar.lc, r2
    48  	.body
    49  ifdef(`HAVE_ABI_32',
    50  `	addp4		r32 = 0, r32
    51  	addp4		r33 = 0, r33
    52  	sxt4		r34 = r34
    53  	;;
    54  ')
    55  {.mmi
    56  	nop		0
    57  	nop		0
    58  	mov.i		r2 = ar.lc
    59  }
    60  {.mmi
    61  	and		r14 = 3, r34
    62  	cmp.ge		p14, p15 = 3, r34
    63  	add		r34 = -4, r34
    64  	;;
    65  }
    66  {.mmi
    67  	cmp.eq		p8, p0 = 1, r14
    68  	cmp.eq		p10, p0 = 2, r14
    69  	cmp.eq		p12, p0 = 3, r14
    70  }
    71  {.bbb
    72    (p8)	br.dptk		.Lb01
    73    (p10)	br.dptk		.Lb10
    74    (p12)	br.dptk		.Lb11
    75  }
    76  
    77  .Lb00:	C  n = 0, 4, 8, 12, ...
    78    (p14)	br.dptk		.Ls00
    79  	;;
    80  	add		r21 = 8, r33
    81  	ld8		r16 = [r33], 16
    82  	shr		r15 = r34, 2
    83  	;;
    84  	ld8		r17 = [r21], 16
    85  	mov.i		ar.lc = r15
    86  	ld8		r18 = [r33], 16
    87  	add		r20 = 8, r32
    88  	;;
    89  	ld8		r19 = [r21], 16
    90  	br.cloop.dptk	.Loop
    91  	;;
    92  	br.sptk		.Lend
    93  	;;
    94  
    95  .Lb01:	C  n = 1, 5, 9, 13, ...
    96  	add		r21 = 0, r33
    97  	add		r20 = 0, r32
    98  	add		r33 = 8, r33
    99  	add		r32 = 8, r32
   100  	;;
   101  	ld8		r19 = [r21], 16
   102  	shr		r15 = r34, 2
   103    (p14)	br.dptk		.Ls01
   104  	;;
   105  	ld8		r16 = [r33], 16
   106  	mov.i		ar.lc = r15
   107  	;;
   108  	ld8		r17 = [r21], 16
   109  	ld8		r18 = [r33], 16
   110  	br.sptk		.Li01
   111  	;;
   112  
   113  .Lb10:	C  n = 2,6, 10, 14, ...
   114  	add		r21 = 8, r33
   115  	add		r20 = 8, r32
   116  	ld8		r18 = [r33], 16
   117  	shr		r15 = r34, 2
   118  	;;
   119  	ld8		r19 = [r21], 16
   120  	mov.i		ar.lc = r15
   121    (p14)	br.dptk		.Ls10
   122  	;;
   123  	ld8		r16 = [r33], 16
   124  	ld8		r17 = [r21], 16
   125  	br.sptk		.Li10
   126  	;;
   127  
   128  .Lb11:	C  n = 3, 7, 11, 15, ...
   129  	add		r21 = 0, r33
   130  	add		r20 = 0, r32
   131  	add		r33 = 8, r33
   132  	add		r32 = 8, r32
   133  	;;
   134  	ld8		r17 = [r21], 16
   135  	shr		r15 = r34, 2
   136  	;;
   137  	ld8		r18 = [r33], 16
   138  	mov.i		ar.lc = r15
   139  	ld8		r19 = [r21], 16
   140    (p14)	br.dptk		.Ls11
   141  	;;
   142  	ld8		r16 = [r33], 16
   143  	br.sptk		.Li11
   144  	;;
   145  
   146  	ALIGN(32)
   147  .Loop:
   148  .Li00:
   149  {.mmb
   150  	st8		[r32] = r16, 16
   151  	ld8		r16 = [r33], 16
   152  	nop.b		0
   153  }
   154  .Li11:
   155  {.mmb
   156  	st8		[r20] = r17, 16
   157  	ld8		r17 = [r21], 16
   158  	nop.b		0
   159  	;;
   160  }
   161  .Li10:
   162  {.mmb
   163  	st8		[r32] = r18, 16
   164  	ld8		r18 = [r33], 16
   165  	nop.b		0
   166  }
   167  .Li01:
   168  {.mmb
   169  	st8		[r20] = r19, 16
   170  	ld8		r19 = [r21], 16
   171  	br.cloop.dptk	.Loop
   172  	;;
   173  }
   174  .Lend:	st8		[r32] = r16, 16
   175  .Ls11:	st8		[r20] = r17, 16
   176  	;;
   177  .Ls10:	st8		[r32] = r18, 16
   178  .Ls01:	st8		[r20] = r19, 16
   179  .Ls00:	mov.i		ar.lc = r2
   180  	br.ret.sptk.many b0
   181  EPILOGUE()
   182  ASM_END()