llvm.org GIT mirror llvm / 4107715 lib / IR / DiagnosticInfo.cpp
4107715

Tree @4107715 (Download .tar.gz)

DiagnosticInfo.cpp @4107715raw · history · 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
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
//===- llvm/Support/DiagnosticInfo.cpp - Diagnostic Definitions -*- 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 file defines the different classes involved in low level diagnostics.
//
// Diagnostics reporting is still done as part of the LLVMContext.
//===----------------------------------------------------------------------===//

#include "llvm/IR/DiagnosticInfo.h"
#include "LLVMContextImpl.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/Twine.h"
#include "llvm/ADT/iterator_range.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DebugInfoMetadata.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/DiagnosticPrinter.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Value.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/Regex.h"
#include "llvm/Support/ScopedPrinter.h"
#include "llvm/Support/raw_ostream.h"
#include <atomic>
#include <cassert>
#include <memory>
#include <string>

using namespace llvm;

int llvm::getNextAvailablePluginDiagnosticKind() {
  static std::atomic<int> PluginKindID(DK_FirstPluginKind);
  return ++PluginKindID;
}

const char *OptimizationRemarkAnalysis::AlwaysPrint = "";

DiagnosticInfoInlineAsm::DiagnosticInfoInlineAsm(const Instruction &I,
                                                 const Twine &MsgStr,
                                                 DiagnosticSeverity Severity)
    : DiagnosticInfo(DK_InlineAsm, Severity), MsgStr(MsgStr), Instr(&I) {
  if (const MDNode *SrcLoc = I.getMetadata("srcloc")) {
    if (SrcLoc->getNumOperands() != 0)
      if (const auto *CI =
              mdconst::dyn_extract<ConstantInt>(SrcLoc->getOperand(0)))
        LocCookie = CI->getZExtValue();
  }
}

void DiagnosticInfoInlineAsm::print(DiagnosticPrinter &DP) const {
  DP << getMsgStr();
  if (getLocCookie())
    DP << " at line " << getLocCookie();
}

void DiagnosticInfoResourceLimit::print(DiagnosticPrinter &DP) const {
  DP << getResourceName() << " limit";

  if (getResourceLimit() != 0)
    DP << " of " << getResourceLimit();

  DP << " exceeded (" <<  getResourceSize() << ") in " << getFunction();
}

void DiagnosticInfoDebugMetadataVersion::print(DiagnosticPrinter &DP) const {
  DP << "ignoring debug info with an invalid version (" << getMetadataVersion()
     << ") in " << getModule();
}

void DiagnosticInfoIgnoringInvalidDebugMetadata::print(
    DiagnosticPrinter &DP) const {
  DP << "ignoring invalid debug info in " << getModule().getModuleIdentifier();
}

void DiagnosticInfoSampleProfile::print(DiagnosticPrinter &DP) const {
  if (!FileName.empty()) {
    DP << getFileName();
    if (LineNum > 0)
      DP << ":" << getLineNum();
    DP << ": ";
  }
  DP << getMsg();
}

void DiagnosticInfoPGOProfile::print(DiagnosticPrinter &DP) const {
  if (getFileName())
    DP << getFileName() << ": ";
  DP << getMsg();
}

void DiagnosticInfo::anchor() {}
void DiagnosticInfoStackSize::anchor() {}
void DiagnosticInfoWithLocationBase::anchor() {}
void DiagnosticInfoIROptimization::anchor() {}

DiagnosticLocation::DiagnosticLocation(const DebugLoc &DL) {
  if (!DL)
    return;
  File = DL->getFile();
  Line = DL->getLine();
  Column = DL->getColumn();
}

DiagnosticLocation::DiagnosticLocation(const DISubprogram *SP) {
  if (!SP)
    return;
  
  File = SP->getFile();
  Line = SP->getScopeLine();
  Column = 0;
}

StringRef DiagnosticLocation::getRelativePath() const {
  return File->getFilename();
}

std::string DiagnosticLocation::getAbsolutePath() const {
  StringRef Name = File->getFilename();
  if (sys::path::is_absolute(Name))
    return Name;

  SmallString<128> Path;
  sys::path::append(Path, File->getDirectory(), Name);
  return sys::path::remove_leading_dotslash(Path).str();
}

std::string DiagnosticInfoWithLocationBase::getAbsolutePath() const {
  return Loc.getAbsolutePath();
}

void DiagnosticInfoWithLocationBase::getLocation(StringRef &RelativePath,
                                                 unsigned &Line,
                                                 unsigned &Column) const {
  RelativePath = Loc.getRelativePath();
  Line = Loc.getLine();
  Column = Loc.getColumn();
}

const std::string DiagnosticInfoWithLocationBase::getLocationStr() const {
  StringRef Filename("<unknown>");
  unsigned Line = 0;
  unsigned Column = 0;
  if (isLocationAvailable())
    getLocation(Filename, Line, Column);
  return (Filename + ":" + Twine(Line) + ":" + Twine(Column)).str();
}

DiagnosticInfoOptimizationBase::Argument::Argument(StringRef Key, const Value *V)
    : Key(Key) {
  if (auto *F = dyn_cast<Function>(V)) {
    if (DISubprogram *SP = F->getSubprogram())
      Loc = SP;
  }
  else if (auto *I = dyn_cast<Instruction>(V))
    Loc = I->getDebugLoc();

  // Only include names that correspond to user variables.  FIXME: We should use
  // debug info if available to get the name of the user variable.
  if (isa<llvm::Argument>(V) || isa<GlobalValue>(V))
    Val = GlobalValue::dropLLVMManglingEscape(V->getName());
  else if (isa<Constant>(V)) {
    raw_string_ostream OS(Val);
    V->printAsOperand(OS, /*PrintType=*/false);
  } else if (auto *I = dyn_cast<Instruction>(V))
    Val = I->getOpcodeName();
}

DiagnosticInfoOptimizationBase::Argument::Argument(StringRef Key, const Type *T)
    : Key(Key) {
  raw_string_ostream OS(Val);
  OS << *T;
}

DiagnosticInfoOptimizationBase::Argument::Argument(StringRef Key, StringRef S)
    : Key(Key), Val(S.str()) {}

DiagnosticInfoOptimizationBase::Argument::Argument(StringRef Key, int N)
    : Key(Key), Val(itostr(N)) {}

DiagnosticInfoOptimizationBase::Argument::Argument(StringRef Key, float N)
    : Key(Key), Val(llvm::to_string(N)) {}

DiagnosticInfoOptimizationBase::Argument::Argument(StringRef Key, long N)
    : Key(Key), Val(itostr(N)) {}

DiagnosticInfoOptimizationBase::Argument::Argument(StringRef Key, long long N)
    : Key(Key), Val(itostr(N)) {}

DiagnosticInfoOptimizationBase::Argument::Argument(StringRef Key, unsigned N)
    : Key(Key), Val(utostr(N)) {}

DiagnosticInfoOptimizationBase::Argument::Argument(StringRef Key,
                                                   unsigned long N)
    : Key(Key), Val(utostr(N)) {}

DiagnosticInfoOptimizationBase::Argument::Argument(StringRef Key,
                                                   unsigned long long N)
    : Key(Key), Val(utostr(N)) {}

DiagnosticInfoOptimizationBase::Argument::Argument(StringRef Key, DebugLoc Loc)
    : Key(Key), Loc(Loc) {
  if (Loc) {
    Val = (Loc->getFilename() + ":" + Twine(Loc.getLine()) + ":" +
           Twine(Loc.getCol())).str();
  } else {
    Val = "<UNKNOWN LOCATION>";
  }
}

void DiagnosticInfoOptimizationBase::print(DiagnosticPrinter &DP) const {
  DP << getLocationStr() << ": " << getMsg();
  if (Hotness)
    DP << " (hotness: " << *Hotness << ")";
}

OptimizationRemark::OptimizationRemark(const char *PassName,
                                       StringRef RemarkName,
                                       const DiagnosticLocation &Loc,
                                       const Value *CodeRegion)
    : DiagnosticInfoIROptimization(
          DK_OptimizationRemark, DS_Remark, PassName, RemarkName,
          *cast<BasicBlock>(CodeRegion)->getParent(), Loc, CodeRegion) {}

OptimizationRemark::OptimizationRemark(const char *PassName,
                                       StringRef RemarkName,
                                       const Instruction *Inst)
    : DiagnosticInfoIROptimization(DK_OptimizationRemark, DS_Remark, PassName,
                                   RemarkName, *Inst->getParent()->getParent(),
                                   Inst->getDebugLoc(), Inst->getParent()) {}

// Helper to allow for an assert before attempting to return an invalid
// reference.
static const BasicBlock &getFirstFunctionBlock(const Function *Func) {
  assert(!Func->empty() && "Function does not have a body");
  return Func->front();
}

OptimizationRemark::OptimizationRemark(const char *PassName,
                                       StringRef RemarkName,
                                       const Function *Func)
    : DiagnosticInfoIROptimization(DK_OptimizationRemark, DS_Remark, PassName,
                                   RemarkName, *Func, Func->getSubprogram(),
                                   &getFirstFunctionBlock(Func)) {}

bool OptimizationRemark::isEnabled() const {
  const Function &Fn = getFunction();
  LLVMContext &Ctx = Fn.getContext();
  return Ctx.getDiagHandlerPtr()->isPassedOptRemarkEnabled(getPassName());
}

OptimizationRemarkMissed::OptimizationRemarkMissed(
    const char *PassName, StringRef RemarkName, const DiagnosticLocation &Loc,
    const Value *CodeRegion)
    : DiagnosticInfoIROptimization(
          DK_OptimizationRemarkMissed, DS_Remark, PassName, RemarkName,
          *cast<BasicBlock>(CodeRegion)->getParent(), Loc, CodeRegion) {}

OptimizationRemarkMissed::OptimizationRemarkMissed(const char *PassName,
                                                   StringRef RemarkName,
                                                   const Instruction *Inst)
    : DiagnosticInfoIROptimization(DK_OptimizationRemarkMissed, DS_Remark,
                                   PassName, RemarkName,
                                   *Inst->getParent()->getParent(),
                                   Inst->getDebugLoc(), Inst->getParent()) {}

bool OptimizationRemarkMissed::isEnabled() const {
  const Function &Fn = getFunction();
  LLVMContext &Ctx = Fn.getContext();
  return Ctx.getDiagHandlerPtr()->isMissedOptRemarkEnabled(getPassName());
}

OptimizationRemarkAnalysis::OptimizationRemarkAnalysis(
    const char *PassName, StringRef RemarkName, const DiagnosticLocation &Loc,
    const Value *CodeRegion)
    : DiagnosticInfoIROptimization(
          DK_OptimizationRemarkAnalysis, DS_Remark, PassName, RemarkName,
          *cast<BasicBlock>(CodeRegion)->getParent(), Loc, CodeRegion) {}

OptimizationRemarkAnalysis::OptimizationRemarkAnalysis(const char *PassName,
                                                       StringRef RemarkName,
                                                       const Instruction *Inst)
    : DiagnosticInfoIROptimization(DK_OptimizationRemarkAnalysis, DS_Remark,
                                   PassName, RemarkName,
                                   *Inst->getParent()->getParent(),
                                   Inst->getDebugLoc(), Inst->getParent()) {}

OptimizationRemarkAnalysis::OptimizationRemarkAnalysis(
    enum DiagnosticKind Kind, const char *PassName, StringRef RemarkName,
    const DiagnosticLocation &Loc, const Value *CodeRegion)
    : DiagnosticInfoIROptimization(Kind, DS_Remark, PassName, RemarkName,
                                   *cast<BasicBlock>(CodeRegion)->getParent(),
                                   Loc, CodeRegion) {}

bool OptimizationRemarkAnalysis::isEnabled() const {
  const Function &Fn = getFunction();
  LLVMContext &Ctx = Fn.getContext();
  return Ctx.getDiagHandlerPtr()->isAnalysisRemarkEnabled(getPassName()) ||
         shouldAlwaysPrint();
}

void DiagnosticInfoMIRParser::print(DiagnosticPrinter &DP) const {
  DP << Diagnostic;
}

DiagnosticInfoOptimizationFailure::DiagnosticInfoOptimizationFailure(
    const char *PassName, StringRef RemarkName, const DiagnosticLocation &Loc,
    const Value *CodeRegion)
    : DiagnosticInfoIROptimization(
          DK_OptimizationFailure, DS_Warning, PassName, RemarkName,
          *cast<BasicBlock>(CodeRegion)->getParent(), Loc, CodeRegion) {}

bool DiagnosticInfoOptimizationFailure::isEnabled() const {
  // Only print warnings.
  return getSeverity() == DS_Warning;
}

void DiagnosticInfoUnsupported::print(DiagnosticPrinter &DP) const {
  std::string Str;
  raw_string_ostream OS(Str);

  OS << getLocationStr() << ": in function " << getFunction().getName() << ' '
     << *getFunction().getFunctionType() << ": " << Msg << '\n';
  OS.flush();
  DP << Str;
}

void DiagnosticInfoISelFallback::print(DiagnosticPrinter &DP) const {
  DP << "Instruction selection used fallback path for " << getFunction();
}

void DiagnosticInfoOptimizationBase::insert(StringRef S) {
  Args.emplace_back(S);
}

void DiagnosticInfoOptimizationBase::insert(Argument A) {
  Args.push_back(std::move(A));
}

void DiagnosticInfoOptimizationBase::insert(setIsVerbose V) {
  IsVerbose = true;
}

void DiagnosticInfoOptimizationBase::insert(setExtraArgs EA) {
  FirstExtraArgIndex = Args.size();
}

std::string DiagnosticInfoOptimizationBase::getMsg() const {
  std::string Str;
  raw_string_ostream OS(Str);
  for (const DiagnosticInfoOptimizationBase::Argument &Arg :
       make_range(Args.begin(), FirstExtraArgIndex == -1
                                    ? Args.end()
                                    : Args.begin() + FirstExtraArgIndex))
    OS << Arg.Val;
  return OS.str();
}

void OptimizationRemarkAnalysisFPCommute::anchor() {}
void OptimizationRemarkAnalysisAliasing::anchor() {}

namespace llvm {
namespace yaml {

void MappingTraits<DiagnosticInfoOptimizationBase *>::mapping(
    IO &io, DiagnosticInfoOptimizationBase *&OptDiag) {
  assert(io.outputting() && "input not yet implemented");

  if (io.mapTag("!Passed",
                (OptDiag->getKind() == DK_OptimizationRemark ||
                 OptDiag->getKind() == DK_MachineOptimizationRemark)))
    ;
  else if (io.mapTag(
               "!Missed",
               (OptDiag->getKind() == DK_OptimizationRemarkMissed ||
                OptDiag->getKind() == DK_MachineOptimizationRemarkMissed)))
    ;
  else if (io.mapTag(
               "!Analysis",
               (OptDiag->getKind() == DK_OptimizationRemarkAnalysis ||
                OptDiag->getKind() == DK_MachineOptimizationRemarkAnalysis)))
    ;
  else if (io.mapTag("!AnalysisFPCommute",
                     OptDiag->getKind() ==
                         DK_OptimizationRemarkAnalysisFPCommute))
    ;
  else if (io.mapTag("!AnalysisAliasing",
                     OptDiag->getKind() ==
                         DK_OptimizationRemarkAnalysisAliasing))
    ;
  else if (io.mapTag("!Failure", OptDiag->getKind() == DK_OptimizationFailure))
    ;
  else
    llvm_unreachable("Unknown remark type");

  // These are read-only for now.
  DiagnosticLocation DL = OptDiag->getLocation();
  StringRef FN =
      GlobalValue::dropLLVMManglingEscape(OptDiag->getFunction().getName());

  StringRef PassName(OptDiag->PassName);
  io.mapRequired("Pass", PassName);
  io.mapRequired("Name", OptDiag->RemarkName);
  if (!io.outputting() || DL.isValid())
    io.mapOptional("DebugLoc", DL);
  io.mapRequired("Function", FN);
  io.mapOptional("Hotness", OptDiag->Hotness);
  io.mapOptional("Args", OptDiag->Args);
}

template <> struct MappingTraits<DiagnosticLocation> {
  static void mapping(IO &io, DiagnosticLocation &DL) {
    assert(io.outputting() && "input not yet implemented");

    StringRef File = DL.getRelativePath();
    unsigned Line = DL.getLine();
    unsigned Col = DL.getColumn();

    io.mapRequired("File", File);
    io.mapRequired("Line", Line);
    io.mapRequired("Column", Col);
  }

  static const bool flow = true;
};

/// Helper struct for multiline string block literals. Use this type to preserve
/// newlines in strings.
struct StringBlockVal {
  StringRef Value;
  StringBlockVal(const std::string &Value) : Value(Value) {}
};

template <> struct BlockScalarTraits<StringBlockVal> {
  static void output(const StringBlockVal &S, void *Ctx, raw_ostream &OS) {
    return ScalarTraits<StringRef>::output(S.Value, Ctx, OS);
  }

  static StringRef input(StringRef Scalar, void *Ctx, StringBlockVal &S) {
    return ScalarTraits<StringRef>::input(Scalar, Ctx, S.Value);
  }
};

// Implement this as a mapping for now to get proper quotation for the value.
template <> struct MappingTraits<DiagnosticInfoOptimizationBase::Argument> {
  static void mapping(IO &io, DiagnosticInfoOptimizationBase::Argument &A) {
    assert(io.outputting() && "input not yet implemented");
    // Emit a string block scalar for multiline strings, to preserve newlines.
    if (StringRef(A.Val).count('\n') > 1) {
      StringBlockVal S(A.Val);
      io.mapRequired(A.Key.data(), S);
    } else
      io.mapRequired(A.Key.data(), A.Val);
    if (A.Loc.isValid())
      io.mapOptional("DebugLoc", A.Loc);
  }
};

} // end namespace yaml
} // end namespace llvm

LLVM_YAML_IS_SEQUENCE_VECTOR(DiagnosticInfoOptimizationBase::Argument)