OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgfortran/] [runtime/] [in_unpack_generic.c] - Blame information for rev 761

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 733 jeremybenn
/* Generic helper function for repacking arrays.
2
   Copyright 2003, 2004, 2005, 2007, 2009, 2010
3
   Free Software Foundation, Inc.
4
   Contributed by Paul Brook <paul@nowt.org>
5
 
6
This file is part of the GNU Fortran 95 runtime library (libgfortran).
7
 
8
Libgfortran is free software; you can redistribute it and/or
9
modify it under the terms of the GNU General Public
10
License as published by the Free Software Foundation; either
11
version 3 of the License, or (at your option) any later version.
12
 
13
Libgfortran is distributed in the hope that it will be useful,
14
but WITHOUT ANY WARRANTY; without even the implied warranty of
15
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16
GNU General Public License for more details.
17
 
18
Under Section 7 of GPL version 3, you are granted additional
19
permissions described in the GCC Runtime Library Exception, version
20
3.1, as published by the Free Software Foundation.
21
 
22
You should have received a copy of the GNU General Public License and
23
a copy of the GCC Runtime Library Exception along with this program;
24
see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
25
<http://www.gnu.org/licenses/>.  */
26
 
27
#include "libgfortran.h"
28
#include <stdlib.h>
29
#include <assert.h>
30
#include <string.h>
31
 
32
extern void internal_unpack (gfc_array_char *, const void *);
33
export_proto(internal_unpack);
34
 
35
void
36
internal_unpack (gfc_array_char * d, const void * s)
37
{
38
  index_type count[GFC_MAX_DIMENSIONS];
39
  index_type extent[GFC_MAX_DIMENSIONS];
40
  index_type stride[GFC_MAX_DIMENSIONS];
41
  index_type stride0;
42
  index_type dim;
43
  index_type dsize;
44
  char *dest;
45
  const char *src;
46
  int n;
47
  int size;
48
  int type_size;
49
 
50
  dest = d->data;
51
  /* This check may be redundant, but do it anyway.  */
52
  if (s == dest || !s)
53
    return;
54
 
55
  type_size = GFC_DTYPE_TYPE_SIZE (d);
56
  switch (type_size)
57
    {
58
    case GFC_DTYPE_INTEGER_1:
59
    case GFC_DTYPE_LOGICAL_1:
60
    case GFC_DTYPE_DERIVED_1:
61
      internal_unpack_1 ((gfc_array_i1 *) d, (const GFC_INTEGER_1 *) s);
62
      return;
63
 
64
    case GFC_DTYPE_INTEGER_2:
65
    case GFC_DTYPE_LOGICAL_2:
66
      internal_unpack_2 ((gfc_array_i2 *) d, (const GFC_INTEGER_2 *) s);
67
      return;
68
 
69
    case GFC_DTYPE_INTEGER_4:
70
    case GFC_DTYPE_LOGICAL_4:
71
      internal_unpack_4 ((gfc_array_i4 *) d, (const GFC_INTEGER_4 *) s);
72
      return;
73
 
74
    case GFC_DTYPE_INTEGER_8:
75
    case GFC_DTYPE_LOGICAL_8:
76
      internal_unpack_8 ((gfc_array_i8 *) d, (const GFC_INTEGER_8 *) s);
77
      return;
78
 
79
#if defined (HAVE_GFC_INTEGER_16)
80
    case GFC_DTYPE_INTEGER_16:
81
    case GFC_DTYPE_LOGICAL_16:
82
      internal_unpack_16 ((gfc_array_i16 *) d, (const GFC_INTEGER_16 *) s);
83
      return;
84
#endif
85
 
86
    case GFC_DTYPE_REAL_4:
87
      internal_unpack_r4 ((gfc_array_r4 *) d, (const GFC_REAL_4 *) s);
88
      return;
89
 
90
    case GFC_DTYPE_REAL_8:
91
      internal_unpack_r8 ((gfc_array_r8 *) d, (const GFC_REAL_8 *) s);
92
      return;
93
 
94
/* FIXME: This here is a hack, which will have to be removed when
95
   the array descriptor is reworked.  Currently, we don't store the
96
   kind value for the type, but only the size.  Because on targets with
97
   __float128, we have sizeof(logn double) == sizeof(__float128),
98
   we cannot discriminate here and have to fall back to the generic
99
   handling (which is suboptimal).  */
100
#if !defined(GFC_REAL_16_IS_FLOAT128)
101
# if defined(HAVE_GFC_REAL_10)
102
    case GFC_DTYPE_REAL_10:
103
      internal_unpack_r10 ((gfc_array_r10 *) d, (const GFC_REAL_10 *) s);
104
      return;
105
# endif
106
 
107
# if defined(HAVE_GFC_REAL_16)
108
    case GFC_DTYPE_REAL_16:
109
      internal_unpack_r16 ((gfc_array_r16 *) d, (const GFC_REAL_16 *) s);
110
      return;
111
# endif
112
#endif
113
 
114
    case GFC_DTYPE_COMPLEX_4:
115
      internal_unpack_c4 ((gfc_array_c4 *)d, (const GFC_COMPLEX_4 *)s);
116
      return;
117
 
118
    case GFC_DTYPE_COMPLEX_8:
119
      internal_unpack_c8 ((gfc_array_c8 *)d, (const GFC_COMPLEX_8 *)s);
120
      return;
121
 
122
/* FIXME: This here is a hack, which will have to be removed when
123
   the array descriptor is reworked.  Currently, we don't store the
124
   kind value for the type, but only the size.  Because on targets with
125
   __float128, we have sizeof(logn double) == sizeof(__float128),
126
   we cannot discriminate here and have to fall back to the generic
127
   handling (which is suboptimal).  */
128
#if !defined(GFC_REAL_16_IS_FLOAT128)
129
# if defined(HAVE_GFC_COMPLEX_10)
130
    case GFC_DTYPE_COMPLEX_10:
131
      internal_unpack_c10 ((gfc_array_c10 *) d, (const GFC_COMPLEX_10 *) s);
132
      return;
133
# endif
134
 
135
# if defined(HAVE_GFC_COMPLEX_16)
136
    case GFC_DTYPE_COMPLEX_16:
137
      internal_unpack_c16 ((gfc_array_c16 *) d, (const GFC_COMPLEX_16 *) s);
138
      return;
139
# endif
140
#endif
141
 
142
    case GFC_DTYPE_DERIVED_2:
143
      if (GFC_UNALIGNED_2(d->data) || GFC_UNALIGNED_2(s))
144
        break;
145
      else
146
        {
147
          internal_unpack_2 ((gfc_array_i2 *) d, (const GFC_INTEGER_2 *) s);
148
          return;
149
        }
150
    case GFC_DTYPE_DERIVED_4:
151
      if (GFC_UNALIGNED_4(d->data) || GFC_UNALIGNED_4(s))
152
        break;
153
      else
154
        {
155
          internal_unpack_4 ((gfc_array_i4 *) d, (const GFC_INTEGER_4 *) s);
156
          return;
157
        }
158
 
159
    case GFC_DTYPE_DERIVED_8:
160
      if (GFC_UNALIGNED_8(d->data) || GFC_UNALIGNED_8(s))
161
        break;
162
      else
163
        {
164
          internal_unpack_8 ((gfc_array_i8 *) d, (const GFC_INTEGER_8 *) s);
165
          return;
166
        }
167
 
168
#ifdef HAVE_GFC_INTEGER_16
169
    case GFC_DTYPE_DERIVED_16:
170
      if (GFC_UNALIGNED_16(d->data) || GFC_UNALIGNED_16(s))
171
        break;
172
      else
173
        {
174
          internal_unpack_16 ((gfc_array_i16 *) d, (const GFC_INTEGER_16 *) s);
175
          return;
176
        }
177
#endif
178
 
179
    default:
180
      break;
181
    }
182
 
183
  size = GFC_DESCRIPTOR_SIZE (d);
184
 
185
  dim = GFC_DESCRIPTOR_RANK (d);
186
  dsize = 1;
187
  for (n = 0; n < dim; n++)
188
    {
189
      count[n] = 0;
190
      stride[n] = GFC_DESCRIPTOR_STRIDE(d,n);
191
      extent[n] = GFC_DESCRIPTOR_EXTENT(d,n);
192
      if (extent[n] <= 0)
193
        return;
194
 
195
      if (dsize == stride[n])
196
        dsize *= extent[n];
197
      else
198
        dsize = 0;
199
    }
200
 
201
  src = s;
202
 
203
  if (dsize != 0)
204
    {
205
      memcpy (dest, src, dsize * size);
206
      return;
207
    }
208
 
209
  stride0 = stride[0] * size;
210
 
211
  while (dest)
212
    {
213
      /* Copy the data.  */
214
      memcpy (dest, src, size);
215
      /* Advance to the next element.  */
216
      src += size;
217
      dest += stride0;
218
      count[0]++;
219
      /* Advance to the next source element.  */
220
      n = 0;
221
      while (count[n] == extent[n])
222
        {
223
          /* When we get to the end of a dimension, reset it and increment
224
             the next dimension.  */
225
          count[n] = 0;
226
          /* We could precalculate these products, but this is a less
227
             frequently used path so probably not worth it.  */
228
          dest -= stride[n] * extent[n] * size;
229
          n++;
230
          if (n == dim)
231
            {
232
              dest = NULL;
233
              break;
234
            }
235
          else
236
            {
237
              count[n]++;
238
              dest += stride[n] * size;
239
            }
240
        }
241
    }
242
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.