Coverage Report

Created: 2018-12-15 01:41

/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/tools/polly/lib/External/isl/isl_id.c
Line
Count
Source (jump to first uncovered line)
1
/*
2
 * Copyright 2008-2009 Katholieke Universiteit Leuven
3
 *
4
 * Use of this software is governed by the MIT license
5
 *
6
 * Written by Sven Verdoolaege, K.U.Leuven, Departement
7
 * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
8
 */
9
10
#include <string.h>
11
#include <isl_ctx_private.h>
12
#include <isl_id_private.h>
13
14
#undef BASE
15
#define BASE id
16
17
#include <isl_list_templ.c>
18
19
/* A special, static isl_id to use as domains (and ranges)
20
 * of sets and parameters domains.
21
 * The user should never get a hold on this isl_id.
22
 */
23
isl_id isl_id_none = {
24
  .ref = -1,
25
  .ctx = NULL,
26
  .name = "#none",
27
  .user = NULL
28
};
29
30
isl_ctx *isl_id_get_ctx(__isl_keep isl_id *id)
31
23.9k
{
32
23.9k
  return id ? id->ctx : NULL;
33
23.9k
}
34
35
void *isl_id_get_user(__isl_keep isl_id *id)
36
32.9k
{
37
32.9k
  return id ? 
id->user32.9k
: NULL;
38
32.9k
}
39
40
const char *isl_id_get_name(__isl_keep isl_id *id)
41
14.6k
{
42
14.6k
  return id ? id->name : NULL;
43
14.6k
}
44
45
static __isl_give isl_id *id_alloc(isl_ctx *ctx, const char *name, void *user)
46
74.1k
{
47
74.1k
  const char *copy = name ? 
strdup(name)74.1k
: NULL;
48
74.1k
  isl_id *id;
49
74.1k
50
74.1k
  if (name && 
!copy74.1k
)
51
0
    return NULL;
52
74.1k
  id = isl_calloc_type(ctx, struct isl_id);
53
74.1k
  if (!id)
54
0
    goto error;
55
74.1k
56
74.1k
  id->ctx = ctx;
57
74.1k
  isl_ctx_ref(id->ctx);
58
74.1k
  id->ref = 1;
59
74.1k
  id->name = copy;
60
74.1k
  id->user = user;
61
74.1k
62
74.1k
  id->hash = isl_hash_init();
63
74.1k
  if (name)
64
74.1k
    id->hash = isl_hash_string(id->hash, name);
65
7
  else
66
7
    id->hash = isl_hash_builtin(id->hash, user);
67
74.1k
68
74.1k
  return id;
69
0
error:
70
0
  free((char *)copy);
71
0
  return NULL;
72
74.1k
}
73
74
uint32_t isl_id_get_hash(__isl_keep isl_id *id)
75
1.06k
{
76
1.06k
  return id ? id->hash : 
00
;
77
1.06k
}
78
79
struct isl_name_and_user {
80
  const char *name;
81
  void *user;
82
};
83
84
static int isl_id_has_name_and_user(const void *entry, const void *val)
85
253k
{
86
253k
  isl_id *id = (isl_id *)entry;
87
253k
  struct isl_name_and_user *nu = (struct isl_name_and_user *) val;
88
253k
89
253k
  if (id->user != nu->user)
90
244k
    return 0;
91
8.44k
  if (id->name == nu->name)
92
8
    return 1;
93
8.43k
  if (!id->name || !nu->name)
94
0
    return 0;
95
8.43k
96
8.43k
  return !strcmp(id->name, nu->name);
97
8.43k
}
98
99
__isl_give isl_id *isl_id_alloc(isl_ctx *ctx, const char *name, void *user)
100
82.6k
{
101
82.6k
  struct isl_hash_table_entry *entry;
102
82.6k
  uint32_t id_hash;
103
82.6k
  struct isl_name_and_user nu = { name, user };
104
82.6k
105
82.6k
  if (!ctx)
106
0
    return NULL;
107
82.6k
108
82.6k
  id_hash = isl_hash_init();
109
82.6k
  if (name)
110
82.6k
    id_hash = isl_hash_string(id_hash, name);
111
15
  else
112
15
    id_hash = isl_hash_builtin(id_hash, user);
113
82.6k
  entry = isl_hash_table_find(ctx, &ctx->id_table, id_hash,
114
82.6k
          isl_id_has_name_and_user, &nu, 1);
115
82.6k
  if (!entry)
116
0
    return NULL;
117
82.6k
  if (entry->data)
118
8.44k
    return isl_id_copy(entry->data);
119
74.1k
  entry->data = id_alloc(ctx, name, user);
120
74.1k
  if (!entry->data)
121
0
    ctx->id_table.n--;
122
74.1k
  return entry->data;
123
74.1k
}
124
125
/* If the id has a negative refcount, then it is a static isl_id
126
 * which should not be changed.
127
 */
128
__isl_give isl_id *isl_id_copy(isl_id *id)
129
9.09M
{
130
9.09M
  if (!id)
131
15.0k
    return NULL;
132
9.07M
133
9.07M
  if (id->ref < 0)
134
1.84M
    return id;
135
7.23M
136
7.23M
  id->ref++;
137
7.23M
  return id;
138
7.23M
}
139
140
/* Compare two isl_ids.
141
 *
142
 * The order is fairly arbitrary.  We do keep the comparison of
143
 * the user pointers as a last resort since these pointer values
144
 * may not be stable across different systems or even different runs.
145
 */
146
int isl_id_cmp(__isl_keep isl_id *id1, __isl_keep isl_id *id2)
147
5.40M
{
148
5.40M
  if (id1 == id2)
149
5.40M
    return 0;
150
0
  if (!id1)
151
0
    return -1;
152
0
  if (!id2)
153
0
    return 1;
154
0
  if (!id1->name != !id2->name)
155
0
    return !id1->name - !id2->name;
156
0
  if (id1->name) {
157
0
    int cmp = strcmp(id1->name, id2->name);
158
0
    if (cmp != 0)
159
0
      return cmp;
160
0
  }
161
0
  if (id1->user < id2->user)
162
0
    return -1;
163
0
  else
164
0
    return 1;
165
0
}
166
167
static int isl_id_eq(const void *entry, const void *name)
168
104k
{
169
104k
  return entry == name;
170
104k
}
171
172
uint32_t isl_hash_id(uint32_t hash, __isl_keep isl_id *id)
173
2.41M
{
174
2.41M
  if (id)
175
2.41M
    
isl_hash_hash1.76M
(hash, id->hash);
176
2.41M
177
2.41M
  return hash;
178
2.41M
}
179
180
/* Replace the free_user callback by "free_user".
181
 */
182
__isl_give isl_id *isl_id_set_free_user(__isl_take isl_id *id,
183
  void (*free_user)(void *user))
184
2.42k
{
185
2.42k
  if (!id)
186
0
    return NULL;
187
2.42k
188
2.42k
  id->free_user = free_user;
189
2.42k
190
2.42k
  return id;
191
2.42k
}
192
193
/* If the id has a negative refcount, then it is a static isl_id
194
 * and should not be freed.
195
 */
196
__isl_null isl_id *isl_id_free(__isl_take isl_id *id)
197
25.2M
{
198
25.2M
  struct isl_hash_table_entry *entry;
199
25.2M
200
25.2M
  if (!id)
201
14.1M
    return NULL;
202
11.1M
203
11.1M
  if (id->ref < 0)
204
3.85M
    return NULL;
205
7.30M
206
7.30M
  if (--id->ref > 0)
207
7.22M
    return NULL;
208
73.9k
209
73.9k
  entry = isl_hash_table_find(id->ctx, &id->ctx->id_table, id->hash,
210
73.9k
          isl_id_eq, id, 0);
211
73.9k
  if (!entry)
212
73.9k
    
isl_die0
(id->ctx, isl_error_unknown,
213
73.9k
      "unable to find id", (void)0);
214
73.9k
  else
215
73.9k
    isl_hash_table_remove(id->ctx, &id->ctx->id_table, entry);
216
73.9k
217
73.9k
  if (id->free_user)
218
2.42k
    id->free_user(id->user);
219
73.9k
220
73.9k
  free((char *)id->name);
221
73.9k
  isl_ctx_deref(id->ctx);
222
73.9k
  free(id);
223
73.9k
224
73.9k
  return NULL;
225
73.9k
}
226
227
__isl_give isl_printer *isl_printer_print_id(__isl_take isl_printer *p,
228
  __isl_keep isl_id *id)
229
0
{
230
0
  if (!id)
231
0
    goto error;
232
0
233
0
  if (id->name)
234
0
    p = isl_printer_print_str(p, id->name);
235
0
  if (id->user) {
236
0
    char buffer[50];
237
0
    snprintf(buffer, sizeof(buffer), "@%p", id->user);
238
0
    p = isl_printer_print_str(p, buffer);
239
0
  }
240
0
  return p;
241
0
error:
242
0
  isl_printer_free(p);
243
0
  return NULL;
244
0
}