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-rw-r--r--contrib/llvm/tools/clang/lib/Frontend/CompilerInstance.cpp268
1 files changed, 185 insertions, 83 deletions
diff --git a/contrib/llvm/tools/clang/lib/Frontend/CompilerInstance.cpp b/contrib/llvm/tools/clang/lib/Frontend/CompilerInstance.cpp
index 6af920d..93a34b7 100644
--- a/contrib/llvm/tools/clang/lib/Frontend/CompilerInstance.cpp
+++ b/contrib/llvm/tools/clang/lib/Frontend/CompilerInstance.cpp
@@ -101,14 +101,18 @@ void CompilerInstance::setSema(Sema *S) {
TheSema.reset(S);
}
-void CompilerInstance::setASTConsumer(ASTConsumer *Value) {
- Consumer.reset(Value);
+void CompilerInstance::setASTConsumer(std::unique_ptr<ASTConsumer> Value) {
+ Consumer = std::move(Value);
}
void CompilerInstance::setCodeCompletionConsumer(CodeCompleteConsumer *Value) {
CompletionConsumer.reset(Value);
}
-
+
+std::unique_ptr<Sema> CompilerInstance::takeSema() {
+ return std::move(TheSema);
+}
+
IntrusiveRefCntPtr<ASTReader> CompilerInstance::getModuleManager() const {
return ModuleManager;
}
@@ -130,52 +134,48 @@ void CompilerInstance::setModuleDepCollector(
static void SetUpDiagnosticLog(DiagnosticOptions *DiagOpts,
const CodeGenOptions *CodeGenOpts,
DiagnosticsEngine &Diags) {
- std::string ErrorInfo;
- bool OwnsStream = false;
+ std::error_code EC;
+ std::unique_ptr<raw_ostream> StreamOwner;
raw_ostream *OS = &llvm::errs();
if (DiagOpts->DiagnosticLogFile != "-") {
// Create the output stream.
- llvm::raw_fd_ostream *FileOS(new llvm::raw_fd_ostream(
- DiagOpts->DiagnosticLogFile.c_str(), ErrorInfo,
- llvm::sys::fs::F_Append | llvm::sys::fs::F_Text));
- if (!ErrorInfo.empty()) {
+ auto FileOS = llvm::make_unique<llvm::raw_fd_ostream>(
+ DiagOpts->DiagnosticLogFile, EC,
+ llvm::sys::fs::F_Append | llvm::sys::fs::F_Text);
+ if (EC) {
Diags.Report(diag::warn_fe_cc_log_diagnostics_failure)
- << DiagOpts->DiagnosticLogFile << ErrorInfo;
+ << DiagOpts->DiagnosticLogFile << EC.message();
} else {
FileOS->SetUnbuffered();
FileOS->SetUseAtomicWrites(true);
- OS = FileOS;
- OwnsStream = true;
+ OS = FileOS.get();
+ StreamOwner = std::move(FileOS);
}
}
// Chain in the diagnostic client which will log the diagnostics.
- LogDiagnosticPrinter *Logger = new LogDiagnosticPrinter(*OS, DiagOpts,
- OwnsStream);
+ auto Logger = llvm::make_unique<LogDiagnosticPrinter>(*OS, DiagOpts,
+ std::move(StreamOwner));
if (CodeGenOpts)
Logger->setDwarfDebugFlags(CodeGenOpts->DwarfDebugFlags);
- Diags.setClient(new ChainedDiagnosticConsumer(Diags.takeClient(), Logger));
+ assert(Diags.ownsClient());
+ Diags.setClient(
+ new ChainedDiagnosticConsumer(Diags.takeClient(), std::move(Logger)));
}
static void SetupSerializedDiagnostics(DiagnosticOptions *DiagOpts,
DiagnosticsEngine &Diags,
StringRef OutputFile) {
- std::string ErrorInfo;
- std::unique_ptr<llvm::raw_fd_ostream> OS;
- OS.reset(new llvm::raw_fd_ostream(OutputFile.str().c_str(), ErrorInfo,
- llvm::sys::fs::F_None));
+ auto SerializedConsumer =
+ clang::serialized_diags::create(OutputFile, DiagOpts);
- if (!ErrorInfo.empty()) {
- Diags.Report(diag::warn_fe_serialized_diag_failure)
- << OutputFile << ErrorInfo;
- return;
+ if (Diags.ownsClient()) {
+ Diags.setClient(new ChainedDiagnosticConsumer(
+ Diags.takeClient(), std::move(SerializedConsumer)));
+ } else {
+ Diags.setClient(new ChainedDiagnosticConsumer(
+ Diags.getClient(), std::move(SerializedConsumer)));
}
-
- DiagnosticConsumer *SerializedConsumer =
- clang::serialized_diags::create(OS.release(), DiagOpts);
-
- Diags.setClient(new ChainedDiagnosticConsumer(Diags.takeClient(),
- SerializedConsumer));
}
void CompilerInstance::createDiagnostics(DiagnosticConsumer *Client,
@@ -371,6 +371,14 @@ void CompilerInstance::createPreprocessor(TranslationUnitKind TUKind) {
AttachHeaderIncludeGen(*PP, /*ShowAllHeaders=*/false, /*OutputPath=*/"",
/*ShowDepth=*/true, /*MSStyle=*/true);
}
+
+ // Load all explictly-specified module map files.
+ for (const auto &Filename : getFrontendOpts().ModuleMapFiles) {
+ if (auto *File = getFileManager().getFile(Filename))
+ PP->getHeaderSearchInfo().loadModuleMapFile(File, /*IsSystem*/false);
+ else
+ getDiagnostics().Report(diag::err_module_map_not_found) << Filename;
+ }
}
// ASTContext
@@ -569,17 +577,14 @@ CompilerInstance::createOutputFile(StringRef OutputPath,
StringRef Extension,
bool UseTemporary,
bool CreateMissingDirectories) {
- std::string Error, OutputPathName, TempPathName;
- llvm::raw_fd_ostream *OS = createOutputFile(OutputPath, Error, Binary,
- RemoveFileOnSignal,
- InFile, Extension,
- UseTemporary,
- CreateMissingDirectories,
- &OutputPathName,
- &TempPathName);
+ std::string OutputPathName, TempPathName;
+ std::error_code EC;
+ llvm::raw_fd_ostream *OS = createOutputFile(
+ OutputPath, EC, Binary, RemoveFileOnSignal, InFile, Extension,
+ UseTemporary, CreateMissingDirectories, &OutputPathName, &TempPathName);
if (!OS) {
- getDiagnostics().Report(diag::err_fe_unable_to_open_output)
- << OutputPath << Error;
+ getDiagnostics().Report(diag::err_fe_unable_to_open_output) << OutputPath
+ << EC.message();
return nullptr;
}
@@ -591,17 +596,11 @@ CompilerInstance::createOutputFile(StringRef OutputPath,
return OS;
}
-llvm::raw_fd_ostream *
-CompilerInstance::createOutputFile(StringRef OutputPath,
- std::string &Error,
- bool Binary,
- bool RemoveFileOnSignal,
- StringRef InFile,
- StringRef Extension,
- bool UseTemporary,
- bool CreateMissingDirectories,
- std::string *ResultPathName,
- std::string *TempPathName) {
+llvm::raw_fd_ostream *CompilerInstance::createOutputFile(
+ StringRef OutputPath, std::error_code &Error, bool Binary,
+ bool RemoveFileOnSignal, StringRef InFile, StringRef Extension,
+ bool UseTemporary, bool CreateMissingDirectories,
+ std::string *ResultPathName, std::string *TempPathName) {
assert((!CreateMissingDirectories || UseTemporary) &&
"CreateMissingDirectories is only allowed when using temporary files");
@@ -670,9 +669,9 @@ CompilerInstance::createOutputFile(StringRef OutputPath,
if (!OS) {
OSFile = OutFile;
OS.reset(new llvm::raw_fd_ostream(
- OSFile.c_str(), Error,
+ OSFile, Error,
(Binary ? llvm::sys::fs::F_None : llvm::sys::fs::F_Text)));
- if (!Error.empty())
+ if (Error)
return nullptr;
}
@@ -705,7 +704,8 @@ bool CompilerInstance::InitializeSourceManager(const FrontendInputFile &Input,
Kind = Input.isSystem() ? SrcMgr::C_System : SrcMgr::C_User;
if (Input.isBuffer()) {
- SourceMgr.setMainFileID(SourceMgr.createFileID(Input.getBuffer(), Kind));
+ SourceMgr.setMainFileID(SourceMgr.createFileID(
+ std::unique_ptr<llvm::MemoryBuffer>(Input.getBuffer()), Kind));
assert(!SourceMgr.getMainFileID().isInvalid() &&
"Couldn't establish MainFileID!");
return true;
@@ -727,14 +727,14 @@ bool CompilerInstance::InitializeSourceManager(const FrontendInputFile &Input,
// pick up the correct size, and simply override their contents as we do for
// STDIN.
if (File->isNamedPipe()) {
- std::string ErrorStr;
- if (llvm::MemoryBuffer *MB =
- FileMgr.getBufferForFile(File, &ErrorStr, /*isVolatile=*/true)) {
+ auto MB = FileMgr.getBufferForFile(File, /*isVolatile=*/true);
+ if (MB) {
// Create a new virtual file that will have the correct size.
- File = FileMgr.getVirtualFile(InputFile, MB->getBufferSize(), 0);
- SourceMgr.overrideFileContents(File, MB);
+ File = FileMgr.getVirtualFile(InputFile, (*MB)->getBufferSize(), 0);
+ SourceMgr.overrideFileContents(File, std::move(*MB));
} else {
- Diags.Report(diag::err_cannot_open_file) << InputFile << ErrorStr;
+ Diags.Report(diag::err_cannot_open_file) << InputFile
+ << MB.getError().message();
return false;
}
}
@@ -754,7 +754,7 @@ bool CompilerInstance::InitializeSourceManager(const FrontendInputFile &Input,
SB->getBufferSize(), 0);
SourceMgr.setMainFileID(
SourceMgr.createFileID(File, SourceLocation(), Kind));
- SourceMgr.overrideFileContents(File, SB.release());
+ SourceMgr.overrideFileContents(File, std::move(SB));
}
assert(!SourceMgr.getMainFileID().isInvalid() &&
@@ -802,8 +802,9 @@ bool CompilerInstance::ExecuteAction(FrontendAction &Act) {
llvm::EnableStatistics();
for (unsigned i = 0, e = getFrontendOpts().Inputs.size(); i != e; ++i) {
- // Reset the ID tables if we are reusing the SourceManager.
- if (hasSourceManager())
+ // Reset the ID tables if we are reusing the SourceManager and parsing
+ // regular files.
+ if (hasSourceManager() && !Act.isModelParsingAction())
getSourceManager().clearIDTables();
if (Act.BeginSourceFile(*this, getFrontendOpts().Inputs[i])) {
@@ -951,17 +952,22 @@ static bool compileModuleImpl(CompilerInstance &ImportingInstance,
FrontendOpts.Inputs.push_back(
FrontendInputFile("__inferred_module.map", IK));
- llvm::MemoryBuffer *ModuleMapBuffer =
+ std::unique_ptr<llvm::MemoryBuffer> ModuleMapBuffer =
llvm::MemoryBuffer::getMemBuffer(InferredModuleMapContent);
ModuleMapFile = Instance.getFileManager().getVirtualFile(
"__inferred_module.map", InferredModuleMapContent.size(), 0);
- SourceMgr.overrideFileContents(ModuleMapFile, ModuleMapBuffer);
+ SourceMgr.overrideFileContents(ModuleMapFile, std::move(ModuleMapBuffer));
}
- // Construct a module-generating action. Passing through Module->ModuleMap is
+ // Construct a module-generating action. Passing through the module map is
// safe because the FileManager is shared between the compiler instances.
- GenerateModuleAction CreateModuleAction(Module->ModuleMap, Module->IsSystem);
-
+ GenerateModuleAction CreateModuleAction(
+ ModMap.getModuleMapFileForUniquing(Module), Module->IsSystem);
+
+ ImportingInstance.getDiagnostics().Report(ImportLoc,
+ diag::remark_module_build)
+ << Module->Name << ModuleFileName;
+
// Execute the action to actually build the module in-place. Use a separate
// thread so that we get a stack large enough.
const unsigned ThreadStackSize = 8 << 20;
@@ -969,6 +975,10 @@ static bool compileModuleImpl(CompilerInstance &ImportingInstance,
CRC.RunSafelyOnThread([&]() { Instance.ExecuteAction(CreateModuleAction); },
ThreadStackSize);
+ ImportingInstance.getDiagnostics().Report(ImportLoc,
+ diag::remark_module_build_done)
+ << Module->Name;
+
// Delete the temporary module map file.
// FIXME: Even though we're executing under crash protection, it would still
// be nice to do this with RemoveFileOnSignal when we can. However, that
@@ -988,9 +998,10 @@ static bool compileAndLoadModule(CompilerInstance &ImportingInstance,
SourceLocation ImportLoc,
SourceLocation ModuleNameLoc, Module *Module,
StringRef ModuleFileName) {
+ DiagnosticsEngine &Diags = ImportingInstance.getDiagnostics();
+
auto diagnoseBuildFailure = [&] {
- ImportingInstance.getDiagnostics().Report(ModuleNameLoc,
- diag::err_module_not_built)
+ Diags.Report(ModuleNameLoc, diag::err_module_not_built)
<< Module->Name << SourceRange(ImportLoc, ModuleNameLoc);
};
@@ -1004,6 +1015,8 @@ static bool compileAndLoadModule(CompilerInstance &ImportingInstance,
llvm::LockFileManager Locked(ModuleFileName);
switch (Locked) {
case llvm::LockFileManager::LFS_Error:
+ Diags.Report(ModuleNameLoc, diag::err_module_lock_failure)
+ << Module->Name;
return false;
case llvm::LockFileManager::LFS_Owned:
@@ -1027,7 +1040,7 @@ static bool compileAndLoadModule(CompilerInstance &ImportingInstance,
// Try to read the module file, now that we've compiled it.
ASTReader::ASTReadResult ReadResult =
ImportingInstance.getModuleManager()->ReadAST(
- ModuleFileName, serialization::MK_Module, ImportLoc,
+ ModuleFileName, serialization::MK_ImplicitModule, ImportLoc,
ModuleLoadCapabilities);
if (ReadResult == ASTReader::OutOfDate &&
@@ -1038,6 +1051,10 @@ static bool compileAndLoadModule(CompilerInstance &ImportingInstance,
continue;
} else if (ReadResult == ASTReader::Missing) {
diagnoseBuildFailure();
+ } else if (ReadResult != ASTReader::Success &&
+ !Diags.hasErrorOccurred()) {
+ // The ASTReader didn't diagnose the error, so conservatively report it.
+ diagnoseBuildFailure();
}
return ReadResult == ASTReader::Success;
}
@@ -1131,9 +1148,8 @@ static void checkConfigMacro(Preprocessor &PP, StringRef ConfigMacro,
/// \brief Write a new timestamp file with the given path.
static void writeTimestampFile(StringRef TimestampFile) {
- std::string ErrorInfo;
- llvm::raw_fd_ostream Out(TimestampFile.str().c_str(), ErrorInfo,
- llvm::sys::fs::F_None);
+ std::error_code EC;
+ llvm::raw_fd_ostream Out(TimestampFile.str(), EC, llvm::sys::fs::F_None);
}
/// \brief Prune the module cache of modules that haven't been accessed in
@@ -1251,6 +1267,65 @@ void CompilerInstance::createModuleManager() {
}
}
+bool CompilerInstance::loadModuleFile(StringRef FileName) {
+ // Helper to recursively read the module names for all modules we're adding.
+ // We mark these as known and redirect any attempt to load that module to
+ // the files we were handed.
+ struct ReadModuleNames : ASTReaderListener {
+ CompilerInstance &CI;
+ std::vector<StringRef> ModuleFileStack;
+ bool Failed;
+ bool TopFileIsModule;
+
+ ReadModuleNames(CompilerInstance &CI)
+ : CI(CI), Failed(false), TopFileIsModule(false) {}
+
+ bool needsImportVisitation() const override { return true; }
+
+ void visitImport(StringRef FileName) override {
+ ModuleFileStack.push_back(FileName);
+ if (ASTReader::readASTFileControlBlock(FileName, CI.getFileManager(),
+ *this)) {
+ CI.getDiagnostics().Report(SourceLocation(),
+ diag::err_module_file_not_found)
+ << FileName;
+ // FIXME: Produce a note stack explaining how we got here.
+ Failed = true;
+ }
+ ModuleFileStack.pop_back();
+ }
+
+ void ReadModuleName(StringRef ModuleName) override {
+ if (ModuleFileStack.size() == 1)
+ TopFileIsModule = true;
+
+ auto &ModuleFile = CI.ModuleFileOverrides[ModuleName];
+ if (!ModuleFile.empty() &&
+ CI.getFileManager().getFile(ModuleFile) !=
+ CI.getFileManager().getFile(ModuleFileStack.back()))
+ CI.getDiagnostics().Report(SourceLocation(),
+ diag::err_conflicting_module_files)
+ << ModuleName << ModuleFile << ModuleFileStack.back();
+ ModuleFile = ModuleFileStack.back();
+ }
+ } RMN(*this);
+
+ RMN.visitImport(FileName);
+
+ if (RMN.Failed)
+ return false;
+
+ // If we never found a module name for the top file, then it's not a module,
+ // it's a PCH or preamble or something.
+ if (!RMN.TopFileIsModule) {
+ getDiagnostics().Report(SourceLocation(), diag::err_module_file_not_module)
+ << FileName;
+ return false;
+ }
+
+ return true;
+}
+
ModuleLoadResult
CompilerInstance::loadModule(SourceLocation ImportLoc,
ModuleIdPath Path,
@@ -1265,7 +1340,8 @@ CompilerInstance::loadModule(SourceLocation ImportLoc,
// when both the preprocessor and parser see the same import declaration.
if (!ImportLoc.isInvalid() && LastModuleImportLoc == ImportLoc) {
// Make the named module visible.
- if (LastModuleImportResult && ModuleName != getLangOpts().CurrentModule)
+ if (LastModuleImportResult && ModuleName != getLangOpts().CurrentModule &&
+ ModuleName != getLangOpts().ImplementationOfModule)
ModuleManager->makeModuleVisible(LastModuleImportResult, Visibility,
ImportLoc, /*Complain=*/false);
return LastModuleImportResult;
@@ -1279,7 +1355,8 @@ CompilerInstance::loadModule(SourceLocation ImportLoc,
if (Known != KnownModules.end()) {
// Retrieve the cached top-level module.
Module = Known->second;
- } else if (ModuleName == getLangOpts().CurrentModule) {
+ } else if (ModuleName == getLangOpts().CurrentModule ||
+ ModuleName == getLangOpts().ImplementationOfModule) {
// This is the module we're building.
Module = PP->getHeaderSearchInfo().lookupModule(ModuleName);
Known = KnownModules.insert(std::make_pair(Path[0].first, Module)).first;
@@ -1294,8 +1371,12 @@ CompilerInstance::loadModule(SourceLocation ImportLoc,
return ModuleLoadResult();
}
+ auto Override = ModuleFileOverrides.find(ModuleName);
+ bool Explicit = Override != ModuleFileOverrides.end();
+
std::string ModuleFileName =
- PP->getHeaderSearchInfo().getModuleFileName(Module);
+ Explicit ? Override->second
+ : PP->getHeaderSearchInfo().getModuleFileName(Module);
// If we don't already have an ASTReader, create one now.
if (!ModuleManager)
@@ -1311,14 +1392,24 @@ CompilerInstance::loadModule(SourceLocation ImportLoc,
Listener->attachToASTReader(*ModuleManager);
// Try to load the module file.
- unsigned ARRFlags = ASTReader::ARR_OutOfDate | ASTReader::ARR_Missing;
- switch (ModuleManager->ReadAST(ModuleFileName, serialization::MK_Module,
+ unsigned ARRFlags =
+ Explicit ? 0 : ASTReader::ARR_OutOfDate | ASTReader::ARR_Missing;
+ switch (ModuleManager->ReadAST(ModuleFileName,
+ Explicit ? serialization::MK_ExplicitModule
+ : serialization::MK_ImplicitModule,
ImportLoc, ARRFlags)) {
case ASTReader::Success:
break;
case ASTReader::OutOfDate:
case ASTReader::Missing: {
+ if (Explicit) {
+ // ReadAST has already complained for us.
+ ModuleLoader::HadFatalFailure = true;
+ KnownModules[Path[0].first] = nullptr;
+ return ModuleLoadResult();
+ }
+
// The module file is missing or out-of-date. Build it.
assert(Module && "missing module file");
// Check whether there is a cycle in the module graph.
@@ -1342,9 +1433,6 @@ CompilerInstance::loadModule(SourceLocation ImportLoc,
return ModuleLoadResult();
}
- getDiagnostics().Report(ImportLoc, diag::remark_module_build)
- << ModuleName << ModuleFileName;
-
// Check whether we have already attempted to build this module (but
// failed).
if (getPreprocessorOpts().FailedModules &&
@@ -1359,6 +1447,8 @@ CompilerInstance::loadModule(SourceLocation ImportLoc,
// Try to compile and then load the module.
if (!compileAndLoadModule(*this, ImportLoc, ModuleNameLoc, Module,
ModuleFileName)) {
+ assert(getDiagnostics().hasErrorOccurred() &&
+ "undiagnosed error in compileAndLoadModule");
if (getPreprocessorOpts().FailedModules)
getPreprocessorOpts().FailedModules->addFailed(ModuleName);
KnownModules[Path[0].first] = nullptr;
@@ -1448,6 +1538,10 @@ CompilerInstance::loadModule(SourceLocation ImportLoc,
Module = Sub;
}
}
+
+ // Don't make the module visible if we are in the implementation.
+ if (ModuleName == getLangOpts().ImplementationOfModule)
+ return ModuleLoadResult(Module, false);
// Make the named module visible, if it's not already part of the module
// we are parsing.
@@ -1468,7 +1562,7 @@ CompilerInstance::loadModule(SourceLocation ImportLoc,
// Check whether this module is available.
clang::Module::Requirement Requirement;
- clang::Module::HeaderDirective MissingHeader;
+ clang::Module::UnresolvedHeaderDirective MissingHeader;
if (!Module->isAvailable(getLangOpts(), getTarget(), Requirement,
MissingHeader)) {
if (MissingHeader.FileNameLoc.isValid()) {
@@ -1497,9 +1591,16 @@ CompilerInstance::loadModule(SourceLocation ImportLoc,
Module, ImportLoc);
}
+ // Determine whether we're in the #include buffer for a module. The #includes
+ // in that buffer do not qualify as module imports; they're just an
+ // implementation detail of us building the module.
+ bool IsInModuleIncludes = !getLangOpts().CurrentModule.empty() &&
+ getSourceManager().getFileID(ImportLoc) ==
+ getSourceManager().getMainFileID();
+
// If this module import was due to an inclusion directive, create an
// implicit import declaration to capture it in the AST.
- if (IsInclusionDirective && hasASTContext()) {
+ if (IsInclusionDirective && hasASTContext() && !IsInModuleIncludes) {
TranslationUnitDecl *TU = getASTContext().getTranslationUnitDecl();
ImportDecl *ImportD = ImportDecl::CreateImplicit(getASTContext(), TU,
ImportLoc, Module,
@@ -1602,3 +1703,4 @@ CompilerInstance::lookupMissingImports(StringRef Name,
return false;
}
+void CompilerInstance::resetAndLeakSema() { BuryPointer(takeSema()); }
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