aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/libs/llvm14/include/llvm-c/Remarks.h
blob: a4bcba852d8c1aab4648184eef8b06cc7be270b6 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
#pragma once

#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif

/*===-- llvm-c/Remarks.h - Remarks Public C Interface -------------*- C -*-===*\
|*                                                                            *|
|* Part of the LLVM Project, under the Apache License v2.0 with LLVM          *|
|* Exceptions.                                                                *|
|* See https://llvm.org/LICENSE.txt for license information.                  *|
|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception                    *|
|*                                                                            *|
|*===----------------------------------------------------------------------===*|
|*                                                                            *|
|* This header provides a public interface to a remark diagnostics library.   *|
|* LLVM provides an implementation of this interface.                         *|
|*                                                                            *|
\*===----------------------------------------------------------------------===*/

#ifndef LLVM_C_REMARKS_H
#define LLVM_C_REMARKS_H

#include "llvm-c/ExternC.h"
#include "llvm-c/Types.h"
#ifdef __cplusplus
#include <cstddef>
#else
#include <stddef.h>
#endif /* !defined(__cplusplus) */

LLVM_C_EXTERN_C_BEGIN

/**
 * @defgroup LLVMCREMARKS Remarks
 * @ingroup LLVMC
 *
 * @{
 */

// 0 -> 1: Bitstream remarks support.
#define REMARKS_API_VERSION 1

/**
 * The type of the emitted remark.
 */
enum LLVMRemarkType {
  LLVMRemarkTypeUnknown,
  LLVMRemarkTypePassed,
  LLVMRemarkTypeMissed,
  LLVMRemarkTypeAnalysis,
  LLVMRemarkTypeAnalysisFPCommute,
  LLVMRemarkTypeAnalysisAliasing,
  LLVMRemarkTypeFailure
};

/**
 * String containing a buffer and a length. The buffer is not guaranteed to be
 * zero-terminated.
 *
 * \since REMARKS_API_VERSION=0
 */
typedef struct LLVMRemarkOpaqueString *LLVMRemarkStringRef;

/**
 * Returns the buffer holding the string.
 *
 * \since REMARKS_API_VERSION=0
 */
extern const char *LLVMRemarkStringGetData(LLVMRemarkStringRef String);

/**
 * Returns the size of the string.
 *
 * \since REMARKS_API_VERSION=0
 */
extern uint32_t LLVMRemarkStringGetLen(LLVMRemarkStringRef String);

/**
 * DebugLoc containing File, Line and Column.
 *
 * \since REMARKS_API_VERSION=0
 */
typedef struct LLVMRemarkOpaqueDebugLoc *LLVMRemarkDebugLocRef;

/**
 * Return the path to the source file for a debug location.
 *
 * \since REMARKS_API_VERSION=0
 */
extern LLVMRemarkStringRef
LLVMRemarkDebugLocGetSourceFilePath(LLVMRemarkDebugLocRef DL);

/**
 * Return the line in the source file for a debug location.
 *
 * \since REMARKS_API_VERSION=0
 */
extern uint32_t LLVMRemarkDebugLocGetSourceLine(LLVMRemarkDebugLocRef DL);

/**
 * Return the column in the source file for a debug location.
 *
 * \since REMARKS_API_VERSION=0
 */
extern uint32_t LLVMRemarkDebugLocGetSourceColumn(LLVMRemarkDebugLocRef DL);

/**
 * Element of the "Args" list. The key might give more information about what
 * the semantics of the value are, e.g. "Callee" will tell you that the value
 * is a symbol that names a function.
 *
 * \since REMARKS_API_VERSION=0
 */
typedef struct LLVMRemarkOpaqueArg *LLVMRemarkArgRef;

/**
 * Returns the key of an argument. The key defines what the value is, and the
 * same key can appear multiple times in the list of arguments.
 *
 * \since REMARKS_API_VERSION=0
 */
extern LLVMRemarkStringRef LLVMRemarkArgGetKey(LLVMRemarkArgRef Arg);

/**
 * Returns the value of an argument. This is a string that can contain newlines.
 *
 * \since REMARKS_API_VERSION=0
 */
extern LLVMRemarkStringRef LLVMRemarkArgGetValue(LLVMRemarkArgRef Arg);

/**
 * Returns the debug location that is attached to the value of this argument.
 *
 * If there is no debug location, the return value will be `NULL`.
 *
 * \since REMARKS_API_VERSION=0
 */
extern LLVMRemarkDebugLocRef LLVMRemarkArgGetDebugLoc(LLVMRemarkArgRef Arg);

/**
 * A remark emitted by the compiler.
 *
 * \since REMARKS_API_VERSION=0
 */
typedef struct LLVMRemarkOpaqueEntry *LLVMRemarkEntryRef;

/**
 * Free the resources used by the remark entry.
 *
 * \since REMARKS_API_VERSION=0
 */
extern void LLVMRemarkEntryDispose(LLVMRemarkEntryRef Remark);

/**
 * The type of the remark. For example, it can allow users to only keep the
 * missed optimizations from the compiler.
 *
 * \since REMARKS_API_VERSION=0
 */
extern enum LLVMRemarkType LLVMRemarkEntryGetType(LLVMRemarkEntryRef Remark);

/**
 * Get the name of the pass that emitted this remark.
 *
 * \since REMARKS_API_VERSION=0
 */
extern LLVMRemarkStringRef
LLVMRemarkEntryGetPassName(LLVMRemarkEntryRef Remark);

/**
 * Get an identifier of the remark.
 *
 * \since REMARKS_API_VERSION=0
 */
extern LLVMRemarkStringRef
LLVMRemarkEntryGetRemarkName(LLVMRemarkEntryRef Remark);

/**
 * Get the name of the function being processed when the remark was emitted.
 *
 * \since REMARKS_API_VERSION=0
 */
extern LLVMRemarkStringRef
LLVMRemarkEntryGetFunctionName(LLVMRemarkEntryRef Remark);

/**
 * Returns the debug location that is attached to this remark.
 *
 * If there is no debug location, the return value will be `NULL`.
 *
 * \since REMARKS_API_VERSION=0
 */
extern LLVMRemarkDebugLocRef
LLVMRemarkEntryGetDebugLoc(LLVMRemarkEntryRef Remark);

/**
 * Return the hotness of the remark.
 *
 * A hotness of `0` means this value is not set.
 *
 * \since REMARKS_API_VERSION=0
 */
extern uint64_t LLVMRemarkEntryGetHotness(LLVMRemarkEntryRef Remark);

/**
 * The number of arguments the remark holds.
 *
 * \since REMARKS_API_VERSION=0
 */
extern uint32_t LLVMRemarkEntryGetNumArgs(LLVMRemarkEntryRef Remark);

/**
 * Get a new iterator to iterate over a remark's argument.
 *
 * If there are no arguments in \p Remark, the return value will be `NULL`.
 *
 * The lifetime of the returned value is bound to the lifetime of \p Remark.
 *
 * \since REMARKS_API_VERSION=0
 */
extern LLVMRemarkArgRef LLVMRemarkEntryGetFirstArg(LLVMRemarkEntryRef Remark);

/**
 * Get the next argument in \p Remark from the position of \p It.
 *
 * Returns `NULL` if there are no more arguments available.
 *
 * The lifetime of the returned value is bound to the lifetime of \p Remark.
 *
 * \since REMARKS_API_VERSION=0
 */
extern LLVMRemarkArgRef LLVMRemarkEntryGetNextArg(LLVMRemarkArgRef It,
                                                  LLVMRemarkEntryRef Remark);

typedef struct LLVMRemarkOpaqueParser *LLVMRemarkParserRef;

/**
 * Creates a remark parser that can be used to parse the buffer located in \p
 * Buf of size \p Size bytes.
 *
 * \p Buf cannot be `NULL`.
 *
 * This function should be paired with LLVMRemarkParserDispose() to avoid
 * leaking resources.
 *
 * \since REMARKS_API_VERSION=0
 */
extern LLVMRemarkParserRef LLVMRemarkParserCreateYAML(const void *Buf,
                                                      uint64_t Size);

/**
 * Creates a remark parser that can be used to parse the buffer located in \p
 * Buf of size \p Size bytes.
 *
 * \p Buf cannot be `NULL`.
 *
 * This function should be paired with LLVMRemarkParserDispose() to avoid
 * leaking resources.
 *
 * \since REMARKS_API_VERSION=1
 */
extern LLVMRemarkParserRef LLVMRemarkParserCreateBitstream(const void *Buf,
                                                           uint64_t Size);

/**
 * Returns the next remark in the file.
 *
 * The value pointed to by the return value needs to be disposed using a call to
 * LLVMRemarkEntryDispose().
 *
 * All the entries in the returned value that are of LLVMRemarkStringRef type
 * will become invalidated once a call to LLVMRemarkParserDispose is made.
 *
 * If the parser reaches the end of the buffer, the return value will be `NULL`.
 *
 * In the case of an error, the return value will be `NULL`, and:
 *
 * 1) LLVMRemarkParserHasError() will return `1`.
 *
 * 2) LLVMRemarkParserGetErrorMessage() will return a descriptive error
 *    message.
 *
 * An error may occur if:
 *
 * 1) An argument is invalid.
 *
 * 2) There is a parsing error. This can occur on things like malformed YAML.
 *
 * 3) There is a Remark semantic error. This can occur on well-formed files with
 *    missing or extra fields.
 *
 * Here is a quick example of the usage:
 *
 * ```
 * LLVMRemarkParserRef Parser = LLVMRemarkParserCreateYAML(Buf, Size);
 * LLVMRemarkEntryRef Remark = NULL;
 * while ((Remark = LLVMRemarkParserGetNext(Parser))) {
 *    // use Remark
 *    LLVMRemarkEntryDispose(Remark); // Release memory.
 * }
 * bool HasError = LLVMRemarkParserHasError(Parser);
 * LLVMRemarkParserDispose(Parser);
 * ```
 *
 * \since REMARKS_API_VERSION=0
 */
extern LLVMRemarkEntryRef LLVMRemarkParserGetNext(LLVMRemarkParserRef Parser);

/**
 * Returns `1` if the parser encountered an error while parsing the buffer.
 *
 * \since REMARKS_API_VERSION=0
 */
extern LLVMBool LLVMRemarkParserHasError(LLVMRemarkParserRef Parser);

/**
 * Returns a null-terminated string containing an error message.
 *
 * In case of no error, the result is `NULL`.
 *
 * The memory of the string is bound to the lifetime of \p Parser. If
 * LLVMRemarkParserDispose() is called, the memory of the string will be
 * released.
 *
 * \since REMARKS_API_VERSION=0
 */
extern const char *LLVMRemarkParserGetErrorMessage(LLVMRemarkParserRef Parser);

/**
 * Releases all the resources used by \p Parser.
 *
 * \since REMARKS_API_VERSION=0
 */
extern void LLVMRemarkParserDispose(LLVMRemarkParserRef Parser);

/**
 * Returns the version of the remarks library.
 *
 * \since REMARKS_API_VERSION=0
 */
extern uint32_t LLVMRemarkVersion(void);

/**
 * @} // endgoup LLVMCREMARKS
 */

LLVM_C_EXTERN_C_END

#endif /* LLVM_C_REMARKS_H */

#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif