remove unneeded llvm:: namespace qualifiers on some core types now that LLVM.h imports

them into the clang namespace.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135852 91177308-0d34-0410-b5e6-96231b3b80d8

20 files changed, 239 insertions, 239 deletions

diff --git a/lib/Frontend/ASTConsumers.cpp b/lib/Frontend/ASTConsumers.cpp
index 28d312a221..b0746b290c 100644
--- a/lib/Frontend/ASTConsumers.cpp
+++ b/lib/Frontend/ASTConsumers.cpp
@@ -31,11 +31,11 @@ using namespace clang;
 
 namespace {
   class ASTPrinter : public ASTConsumer {
-    llvm::raw_ostream &Out;
+    raw_ostream &Out;
     bool Dump;
 
   public:
-    ASTPrinter(llvm::raw_ostream* o = NULL, bool Dump = false)
+    ASTPrinter(raw_ostream* o = NULL, bool Dump = false)
       : Out(o? *o : llvm::outs()), Dump(Dump) { }
 
     virtual void HandleTranslationUnit(ASTContext &Context) {
@@ -46,7 +46,7 @@ namespace {
   };
 } // end anonymous namespace
 
-ASTConsumer *clang::CreateASTPrinter(llvm::raw_ostream* out) {
+ASTConsumer *clang::CreateASTPrinter(raw_ostream* out) {
   return new ASTPrinter(out);
 }
 
@@ -95,7 +95,7 @@ ASTConsumer *clang::CreateASTViewer() { return new ASTViewer(); }
 namespace {
 
 class DeclContextPrinter : public ASTConsumer {
-  llvm::raw_ostream& Out;
+  raw_ostream& Out;
 public:
   DeclContextPrinter() : Out(llvm::errs()) {}
 
@@ -404,10 +404,10 @@ ASTConsumer *clang::CreateDeclContextPrinter() {
 
 namespace {
 class ASTDumpXML : public ASTConsumer {
-  llvm::raw_ostream &OS;
+  raw_ostream &OS;
 
 public:
-  ASTDumpXML(llvm::raw_ostream &OS) : OS(OS) {}
+  ASTDumpXML(raw_ostream &OS) : OS(OS) {}
 
   void HandleTranslationUnit(ASTContext &C) {
     C.getTranslationUnitDecl()->dumpXML(OS);
@@ -415,6 +415,6 @@ public:
 };
 }
 
-ASTConsumer *clang::CreateASTDumperXML(llvm::raw_ostream &OS) {
+ASTConsumer *clang::CreateASTDumperXML(raw_ostream &OS) {
   return new ASTDumpXML(OS);
 }
diff --git a/lib/Frontend/ASTMerge.cpp b/lib/Frontend/ASTMerge.cpp
index 3905b99b02..df4650e68f 100644
--- a/lib/Frontend/ASTMerge.cpp
+++ b/lib/Frontend/ASTMerge.cpp
@@ -17,12 +17,12 @@
 using namespace clang;
 
 ASTConsumer *ASTMergeAction::CreateASTConsumer(CompilerInstance &CI,
-                                               llvm::StringRef InFile) {
+                                               StringRef InFile) {
   return AdaptedAction->CreateASTConsumer(CI, InFile);
 }
 
 bool ASTMergeAction::BeginSourceFileAction(CompilerInstance &CI,
-                                           llvm::StringRef Filename) {
+                                           StringRef Filename) {
   // FIXME: This is a hack. We need a better way to communicate the
   // AST file, compiler instance, and file name than member variables
   // of FrontendAction.
diff --git a/lib/Frontend/ASTUnit.cpp b/lib/Frontend/ASTUnit.cpp
index e43bdb4226..cd4627bc99 100644
--- a/lib/Frontend/ASTUnit.cpp
+++ b/lib/Frontend/ASTUnit.cpp
@@ -66,7 +66,7 @@ namespace {
         Start = TimeRecord::getCurrentTime();
     }
 
-    void setOutput(const llvm::Twine &Output) {
+    void setOutput(const Twine &Output) {
       if (WantTiming)
         this->Output = Output.str();
     }
@@ -237,7 +237,7 @@ void ASTUnit::CacheCodeCompletionResults() {
   
   // Gather the set of global code completions.
   typedef CodeCompletionResult Result;
-  llvm::SmallVector<Result, 8> Results;
+  SmallVector<Result, 8> Results;
   CachedCompletionAllocator = new GlobalCodeCompletionAllocator;
   TheSema->GatherGlobalCodeCompletions(*CachedCompletionAllocator, Results);
   
@@ -396,13 +396,13 @@ public:
     return false;
   }
 
-  virtual bool ReadTargetTriple(llvm::StringRef Triple) {
+  virtual bool ReadTargetTriple(StringRef Triple) {
     TargetTriple = Triple;
     return false;
   }
 
   virtual bool ReadPredefinesBuffer(const PCHPredefinesBlocks &Buffers,
-                                    llvm::StringRef OriginalFileName,
+                                    StringRef OriginalFileName,
                                     std::string &SuggestedPredefines,
                                     FileManager &FileMgr) {
     Predefines = Buffers[0].Data;
@@ -422,11 +422,11 @@ public:
 };
 
 class StoredDiagnosticClient : public DiagnosticClient {
-  llvm::SmallVectorImpl<StoredDiagnostic> &StoredDiags;
+  SmallVectorImpl<StoredDiagnostic> &StoredDiags;
   
 public:
   explicit StoredDiagnosticClient(
-                          llvm::SmallVectorImpl<StoredDiagnostic> &StoredDiags)
+                          SmallVectorImpl<StoredDiagnostic> &StoredDiags)
     : StoredDiags(StoredDiags) { }
   
   virtual void HandleDiagnostic(Diagnostic::Level Level,
@@ -442,7 +442,7 @@ class CaptureDroppedDiagnostics {
 
 public:
   CaptureDroppedDiagnostics(bool RequestCapture, Diagnostic &Diags, 
-                          llvm::SmallVectorImpl<StoredDiagnostic> &StoredDiags)
+                          SmallVectorImpl<StoredDiagnostic> &StoredDiags)
     : Diags(Diags), Client(StoredDiags), PreviousClient(0)
   {
     if (RequestCapture || Diags.getClient() == 0) {
@@ -478,7 +478,7 @@ const std::string &ASTUnit::getASTFileName() {
   return static_cast<ASTReader *>(Ctx->getExternalSource())->getFileName();
 }
 
-llvm::MemoryBuffer *ASTUnit::getBufferForFile(llvm::StringRef Filename,
+llvm::MemoryBuffer *ASTUnit::getBufferForFile(StringRef Filename,
                                               std::string *ErrorStr) {
   assert(FileMgr);
   return FileMgr->getBufferForFile(Filename, ErrorStr);
@@ -711,7 +711,7 @@ void AddTopLevelDeclarationToHash(Decl *D, unsigned &Hash) {
     return;
   }
   
-  if (ObjCClassDecl *Class = llvm::dyn_cast<ObjCClassDecl>(D)) {
+  if (ObjCClassDecl *Class = dyn_cast<ObjCClassDecl>(D)) {
     for (ObjCClassDecl::iterator I = Class->begin(), IEnd = Class->end();
          I != IEnd; ++I)
       AddTopLevelDeclarationToHash(I->getInterface(), Hash);
@@ -753,7 +753,7 @@ public:
   ASTUnit &Unit;
 
   virtual ASTConsumer *CreateASTConsumer(CompilerInstance &CI,
-                                         llvm::StringRef InFile) {
+                                         StringRef InFile) {
     CI.getPreprocessor().addPPCallbacks(
      new MacroDefinitionTrackerPPCallbacks(Unit.getCurrentTopLevelHashValue()));
     return new TopLevelDeclTrackerConsumer(Unit, 
@@ -778,7 +778,7 @@ class PrecompilePreambleConsumer : public PCHGenerator,
 public:
   PrecompilePreambleConsumer(ASTUnit &Unit,
                              const Preprocessor &PP, bool Chaining,
-                             StringRef isysroot, llvm::raw_ostream *Out)
+                             StringRef isysroot, raw_ostream *Out)
     : PCHGenerator(PP, "", Chaining, isysroot, Out), Unit(Unit),
       Hash(Unit.getCurrentTopLevelHashValue()) {
     Hash = 0;
@@ -828,10 +828,10 @@ public:
   explicit PrecompilePreambleAction(ASTUnit &Unit) : Unit(Unit) {}
 
   virtual ASTConsumer *CreateASTConsumer(CompilerInstance &CI,
-                                         llvm::StringRef InFile) {
+                                         StringRef InFile) {
     std::string Sysroot;
     std::string OutputFile;
-    llvm::raw_ostream *OS = 0;
+    raw_ostream *OS = 0;
     bool Chaining;
     if (GeneratePCHAction::ComputeASTConsumerArguments(CI, InFile, Sysroot,
                                                        OutputFile,
@@ -1132,7 +1132,7 @@ ASTUnit::ComputePreamble(CompilerInvocation &Invocation,
 
 static llvm::MemoryBuffer *CreatePaddedMainFileBuffer(llvm::MemoryBuffer *Old,
                                                       unsigned NewSize,
-                                                      llvm::StringRef NewName) {
+                                                      StringRef NewName) {
   llvm::MemoryBuffer *Result
     = llvm::MemoryBuffer::getNewUninitMemBuffer(NewSize, NewName);
   memcpy(const_cast<char*>(Result->getBufferStart()), 
@@ -1565,7 +1565,7 @@ unsigned ASTUnit::getMaxPCHLevel() const {
   return 0;
 }
 
-llvm::StringRef ASTUnit::getMainFileName() const {
+StringRef ASTUnit::getMainFileName() const {
   return Invocation->getFrontendOpts().Inputs[0].second;
 }
 
@@ -1758,7 +1758,7 @@ ASTUnit *ASTUnit::LoadFromCompilerInvocation(CompilerInvocation *CI,
 ASTUnit *ASTUnit::LoadFromCommandLine(const char **ArgBegin,
                                       const char **ArgEnd,
                                     llvm::IntrusiveRefCntPtr<Diagnostic> Diags,
-                                      llvm::StringRef ResourceFilesPath,
+                                      StringRef ResourceFilesPath,
                                       bool OnlyLocalDecls,
                                       bool CaptureDiagnostics,
                                       RemappedFile *RemappedFiles,
@@ -1778,7 +1778,7 @@ ASTUnit *ASTUnit::LoadFromCommandLine(const char **ArgBegin,
                                                 ArgBegin);
   }
 
-  llvm::SmallVector<StoredDiagnostic, 4> StoredDiagnostics;
+  SmallVector<StoredDiagnostic, 4> StoredDiagnostics;
   
   llvm::IntrusiveRefCntPtr<CompilerInvocation> CI;
 
@@ -2064,7 +2064,7 @@ void AugmentedCodeCompleteConsumer::ProcessCodeCompleteResults(Sema &S,
   // Contains the set of names that are hidden by "local" completion results.
   llvm::StringSet<llvm::BumpPtrAllocator> HiddenNames;
   typedef CodeCompletionResult Result;
-  llvm::SmallVector<Result, 8> AllResults;
+  SmallVector<Result, 8> AllResults;
   for (ASTUnit::cached_completion_iterator 
             C = AST.cached_completion_begin(),
          CEnd = AST.cached_completion_end();
@@ -2146,7 +2146,7 @@ void AugmentedCodeCompleteConsumer::ProcessCodeCompleteResults(Sema &S,
 
 
 
-void ASTUnit::CodeComplete(llvm::StringRef File, unsigned Line, unsigned Column,
+void ASTUnit::CodeComplete(StringRef File, unsigned Line, unsigned Column,
                            RemappedFile *RemappedFiles, 
                            unsigned NumRemappedFiles,
                            bool IncludeMacros, 
@@ -2154,14 +2154,14 @@ void ASTUnit::CodeComplete(llvm::StringRef File, unsigned Line, unsigned Column,
                            CodeCompleteConsumer &Consumer,
                            Diagnostic &Diag, LangOptions &LangOpts,
                            SourceManager &SourceMgr, FileManager &FileMgr,
-                   llvm::SmallVectorImpl<StoredDiagnostic> &StoredDiagnostics,
-             llvm::SmallVectorImpl<const llvm::MemoryBuffer *> &OwnedBuffers) {
+                   SmallVectorImpl<StoredDiagnostic> &StoredDiagnostics,
+             SmallVectorImpl<const llvm::MemoryBuffer *> &OwnedBuffers) {
   if (!Invocation)
     return;
 
   SimpleTimer CompletionTimer(WantTiming);
   CompletionTimer.setOutput("Code completion @ " + File + ":" +
-                            llvm::Twine(Line) + ":" + llvm::Twine(Column));
+                            Twine(Line) + ":" + Twine(Column));
 
   llvm::IntrusiveRefCntPtr<CompilerInvocation>
     CCInvocation(new CompilerInvocation(*Invocation));
@@ -2303,7 +2303,7 @@ void ASTUnit::CodeComplete(llvm::StringRef File, unsigned Line, unsigned Column,
   }
 }
 
-CXSaveError ASTUnit::Save(llvm::StringRef File) {
+CXSaveError ASTUnit::Save(StringRef File) {
   if (getDiagnostics().hasUnrecoverableErrorOccurred())
     return CXSaveError_TranslationErrors;
 
@@ -2341,7 +2341,7 @@ CXSaveError ASTUnit::Save(llvm::StringRef File) {
   return CXSaveError_None;
 }
 
-bool ASTUnit::serialize(llvm::raw_ostream &OS) {
+bool ASTUnit::serialize(raw_ostream &OS) {
   if (getDiagnostics().hasErrorOccurred())
     return true;
 
@@ -2368,17 +2368,17 @@ static void TranslateSLoc(SourceLocation &L, SLocRemap &Remap) {
 
 void ASTUnit::TranslateStoredDiagnostics(
                           ASTReader *MMan,
-                          llvm::StringRef ModName,
+                          StringRef ModName,
                           SourceManager &SrcMgr,
-                          const llvm::SmallVectorImpl<StoredDiagnostic> &Diags,
-                          llvm::SmallVectorImpl<StoredDiagnostic> &Out) {
+                          const SmallVectorImpl<StoredDiagnostic> &Diags,
+                          SmallVectorImpl<StoredDiagnostic> &Out) {
   // The stored diagnostic has the old source manager in it; update
   // the locations to refer into the new source manager. We also need to remap
   // all the locations to the new view. This includes the diag location, any
   // associated source ranges, and the source ranges of associated fix-its.
   // FIXME: There should be a cleaner way to do this.
 
-  llvm::SmallVector<StoredDiagnostic, 4> Result;
+  SmallVector<StoredDiagnostic, 4> Result;
   Result.reserve(Diags.size());
   assert(MMan && "Don't have a module manager");
   serialization::Module *Mod = MMan->Modules.lookup(ModName);
@@ -2391,7 +2391,7 @@ void ASTUnit::TranslateStoredDiagnostics(
     TranslateSLoc(L, Remap);
     FullSourceLoc Loc(L, SrcMgr);
 
-    llvm::SmallVector<CharSourceRange, 4> Ranges;
+    SmallVector<CharSourceRange, 4> Ranges;
     Ranges.reserve(SD.range_size());
     for (StoredDiagnostic::range_iterator I = SD.range_begin(),
                                           E = SD.range_end();
@@ -2403,7 +2403,7 @@ void ASTUnit::TranslateStoredDiagnostics(
       Ranges.push_back(CharSourceRange(SourceRange(BL, EL), I->isTokenRange()));
     }
 
-    llvm::SmallVector<FixItHint, 2> FixIts;
+    SmallVector<FixItHint, 2> FixIts;
     FixIts.reserve(SD.fixit_size());
     for (StoredDiagnostic::fixit_iterator I = SD.fixit_begin(),
                                           E = SD.fixit_end();
diff --git a/lib/Frontend/CacheTokens.cpp b/lib/Frontend/CacheTokens.cpp
index 20b51893fc..8195445fe0 100644
--- a/lib/Frontend/CacheTokens.cpp
+++ b/lib/Frontend/CacheTokens.cpp
@@ -71,13 +71,13 @@ public:
 
   bool isFile() const { return Kind == IsFE; }
 
-  llvm::StringRef getString() const {
+  StringRef getString() const {
     return Kind == IsFE ? FE->getName() : Path;
   }
 
   unsigned getKind() const { return (unsigned) Kind; }
 
-  void EmitData(llvm::raw_ostream& Out) {
+  void EmitData(raw_ostream& Out) {
     switch (Kind) {
     case IsFE:
       // Emit stat information.
@@ -119,7 +119,7 @@ public:
   }
 
   static std::pair<unsigned,unsigned>
-  EmitKeyDataLength(llvm::raw_ostream& Out, PTHEntryKeyVariant V,
+  EmitKeyDataLength(raw_ostream& Out, PTHEntryKeyVariant V,
                     const PTHEntry& E) {
 
     unsigned n = V.getString().size() + 1 + 1;
@@ -131,14 +131,14 @@ public:
     return std::make_pair(n, m);
   }
 
-  static void EmitKey(llvm::raw_ostream& Out, PTHEntryKeyVariant V, unsigned n){
+  static void EmitKey(raw_ostream& Out, PTHEntryKeyVariant V, unsigned n){
     // Emit the entry kind.
     ::Emit8(Out, (unsigned) V.getKind());
     // Emit the string.
     Out.write(V.getString().data(), n - 1);
   }
 
-  static void EmitData(llvm::raw_ostream& Out, PTHEntryKeyVariant V,
+  static void EmitData(raw_ostream& Out, PTHEntryKeyVariant V,
                        const PTHEntry& E, unsigned) {
 
 
@@ -197,7 +197,7 @@ class PTHWriter {
     Out.write(Ptr, NumBytes);
   }
 
-  void EmitString(llvm::StringRef V) {
+  void EmitString(StringRef V) {
     ::Emit16(Out, V.size());
     EmitBuf(V.data(), V.size());
   }
@@ -247,7 +247,7 @@ void PTHWriter::EmitToken(const Token& T) {
   } else {
     // We cache *un-cleaned* spellings. This gives us 100% fidelity with the
     // source code.
-    llvm::StringRef s(T.getLiteralData(), T.getLength());
+    StringRef s(T.getLiteralData(), T.getLength());
 
     // Get the string entry.
     llvm::StringMapEntry<OffsetOpt> *E = &CachedStrs.GetOrCreateValue(s);
@@ -584,20 +584,20 @@ public:
   }
 
   static std::pair<unsigned,unsigned>
-  EmitKeyDataLength(llvm::raw_ostream& Out, const PTHIdKey* key, uint32_t) {
+  EmitKeyDataLength(raw_ostream& Out, const PTHIdKey* key, uint32_t) {
     unsigned n = key->II->getLength() + 1;
     ::Emit16(Out, n);
     return std::make_pair(n, sizeof(uint32_t));
   }
 
-  static void EmitKey(llvm::raw_ostream& Out, PTHIdKey* key, unsigned n) {
+  static void EmitKey(raw_ostream& Out, PTHIdKey* key, unsigned n) {
     // Record the location of the key data.  This is used when generating
     // the mapping from persistent IDs to strings.
     key->FileOffset = Out.tell();
     Out.write(key->II->getNameStart(), n);
   }
 
-  static void EmitData(llvm::raw_ostream& Out, PTHIdKey*, uint32_t pID,
+  static void EmitData(raw_ostream& Out, PTHIdKey*, uint32_t pID,
                        unsigned) {
     ::Emit32(Out, pID);
   }
diff --git a/lib/Frontend/CompilerInstance.cpp b/lib/Frontend/CompilerInstance.cpp
index 8bf9ed9f9d..ef0796ab01 100644
--- a/lib/Frontend/CompilerInstance.cpp
+++ b/lib/Frontend/CompilerInstance.cpp
@@ -89,7 +89,7 @@ static void SetUpBuildDumpLog(const DiagnosticOptions &DiagOpts,
                               unsigned argc, const char* const *argv,
                               Diagnostic &Diags) {
   std::string ErrorInfo;
-  llvm::OwningPtr<llvm::raw_ostream> OS(
+  llvm::OwningPtr<raw_ostream> OS(
     new llvm::raw_fd_ostream(DiagOpts.DumpBuildInformation.c_str(), ErrorInfo));
   if (!ErrorInfo.empty()) {
     Diags.Report(diag::err_fe_unable_to_open_logfile)
@@ -113,7 +113,7 @@ static void SetUpDiagnosticLog(const DiagnosticOptions &DiagOpts,
                                Diagnostic &Diags) {
   std::string ErrorInfo;
   bool OwnsStream = false;
-  llvm::raw_ostream *OS = &llvm::errs();
+  raw_ostream *OS = &llvm::errs();
   if (DiagOpts.DiagnosticLogFile != "-") {
     // Create the output stream.
     llvm::raw_fd_ostream *FileOS(
@@ -241,7 +241,7 @@ CompilerInstance::createPreprocessor(Diagnostic &Diags,
   if (DepOpts.ShowHeaderIncludes)
     AttachHeaderIncludeGen(*PP);
   if (!DepOpts.HeaderIncludeOutputFile.empty()) {
-    llvm::StringRef OutputPath = DepOpts.HeaderIncludeOutputFile;
+    StringRef OutputPath = DepOpts.HeaderIncludeOutputFile;
     if (OutputPath == "-")
       OutputPath = "";
     AttachHeaderIncludeGen(*PP, /*ShowAllHeaders=*/true, OutputPath,
@@ -263,7 +263,7 @@ void CompilerInstance::createASTContext() {
 
 // ExternalASTSource
 
-void CompilerInstance::createPCHExternalASTSource(llvm::StringRef Path,
+void CompilerInstance::createPCHExternalASTSource(StringRef Path,
                                                   bool DisablePCHValidation,
                                                   bool DisableStatCache,
                                                  void *DeserializationListener){
@@ -280,7 +280,7 @@ void CompilerInstance::createPCHExternalASTSource(llvm::StringRef Path,
 }
 
 ExternalASTSource *
-CompilerInstance::createPCHExternalASTSource(llvm::StringRef Path,
+CompilerInstance::createPCHExternalASTSource(StringRef Path,
                                              const std::string &Sysroot,
                                              bool DisablePCHValidation,
                                              bool DisableStatCache,
@@ -373,7 +373,7 @@ CompilerInstance::createCodeCompletionConsumer(Preprocessor &PP,
                                                bool ShowMacros,
                                                bool ShowCodePatterns,
                                                bool ShowGlobals,
-                                               llvm::raw_ostream &OS) {
+                                               raw_ostream &OS) {
   if (EnableCodeCompletion(PP, Filename, Line, Column))
     return 0;
 
@@ -427,17 +427,17 @@ void CompilerInstance::clearOutputFiles(bool EraseFiles) {
 
 llvm::raw_fd_ostream *
 CompilerInstance::createDefaultOutputFile(bool Binary,
-                                          llvm::StringRef InFile,
-                                          llvm::StringRef Extension) {
+                                          StringRef InFile,
+                                          StringRef Extension) {
   return createOutputFile(getFrontendOpts().OutputFile, Binary,
                           /*RemoveFileOnSignal=*/true, InFile, Extension);
 }
 
 llvm::raw_fd_ostream *
-CompilerInstance::createOutputFile(llvm::StringRef OutputPath,
+CompilerInstance::createOutputFile(StringRef OutputPath,
                                    bool Binary, bool RemoveFileOnSignal,
-                                   llvm::StringRef InFile,
-                                   llvm::StringRef Extension) {
+                                   StringRef InFile,
+                                   StringRef Extension) {
   std::string Error, OutputPathName, TempPathName;
   llvm::raw_fd_ostream *OS = createOutputFile(OutputPath, Error, Binary,
                                               RemoveFileOnSignal,
@@ -459,12 +459,12 @@ CompilerInstance::createOutputFile(llvm::StringRef OutputPath,
 }
 
 llvm::raw_fd_ostream *
-CompilerInstance::createOutputFile(llvm::StringRef OutputPath,
+CompilerInstance::createOutputFile(StringRef OutputPath,
                                    std::string &Error,
                                    bool Binary,
                                    bool RemoveFileOnSignal,
-                                   llvm::StringRef InFile,
-                                   llvm::StringRef Extension,
+                                   StringRef InFile,
+                                   StringRef Extension,
                                    std::string *ResultPathName,
                                    std::string *TempPathName) {
   std::string OutFile, TempFile;
@@ -519,12 +519,12 @@ CompilerInstance::createOutputFile(llvm::StringRef OutputPath,
 
 // Initialization Utilities
 
-bool CompilerInstance::InitializeSourceManager(llvm::StringRef InputFile) {
+bool CompilerInstance::InitializeSourceManager(StringRef InputFile) {
   return InitializeSourceManager(InputFile, getDiagnostics(), getFileManager(),
                                  getSourceManager(), getFrontendOpts());
 }
 
-bool CompilerInstance::InitializeSourceManager(llvm::StringRef InputFile,
+bool CompilerInstance::InitializeSourceManager(StringRef InputFile,
                                                Diagnostic &Diags,
                                                FileManager &FileMgr,
                                                SourceManager &SourceMgr,
@@ -567,7 +567,7 @@ bool CompilerInstance::ExecuteAction(FrontendAction &Act) {
 
   // FIXME: Take this as an argument, once all the APIs we used have moved to
   // taking it as an input instead of hard-coding llvm::errs.
-  llvm::raw_ostream &OS = llvm::errs();
+  raw_ostream &OS = llvm::errs();
 
   // Create the target instance.
   setTarget(TargetInfo::CreateTargetInfo(getDiagnostics(), getTargetOpts()));
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index d2cdde01d9..8967d5280b 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -878,7 +878,7 @@ static void ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
   using namespace cc1options;
 
   if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
-    llvm::StringRef Name = A->getValue(Args);
+    StringRef Name = A->getValue(Args);
     AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
       .Case(CMDFLAG, NAME##Model)
@@ -893,7 +893,7 @@ static void ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
   }
 
   if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
-    llvm::StringRef Name = A->getValue(Args);
+    StringRef Name = A->getValue(Args);
     AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
       .Case(CMDFLAG, NAME##Model)
@@ -908,7 +908,7 @@ static void ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
   }
 
   if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
-    llvm::StringRef Name = A->getValue(Args);
+    StringRef Name = A->getValue(Args);
     AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \
       .Case(CMDFLAG, PD_##NAME)
@@ -950,8 +950,8 @@ static void ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
     bool enable = (A->getOption().getID() == OPT_analyzer_checker);
     // We can have a list of comma separated checker names, e.g:
     // '-analyzer-checker=cocoa,unix'
-    llvm::StringRef checkerList = A->getValue(Args);
-    llvm::SmallVector<llvm::StringRef, 4> checkers;
+    StringRef checkerList = A->getValue(Args);
+    SmallVector<StringRef, 4> checkers;
     checkerList.split(checkers, ",");
     for (unsigned i = 0, e = checkers.size(); i != e; ++i)
       Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable));
@@ -1034,7 +1034,7 @@ static void ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
   Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file);
 
   if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
-    llvm::StringRef Name = A->getValue(Args);
+    StringRef Name = A->getValue(Args);
     unsigned Method = llvm::StringSwitch<unsigned>(Name)
       .Case("legacy", CodeGenOptions::Legacy)
       .Case("non-legacy", CodeGenOptions::NonLegacy)
@@ -1084,7 +1084,7 @@ static void ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
     if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
       Opts.ShowNoteIncludeStack = true;
 
-  llvm::StringRef ShowOverloads =
+  StringRef ShowOverloads =
     Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
   if (ShowOverloads == "best")
     Opts.ShowOverloads = Diagnostic::Ovl_Best;
@@ -1095,7 +1095,7 @@ static void ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
       << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
       << ShowOverloads;
 
-  llvm::StringRef ShowCategory =
+  StringRef ShowCategory =
     Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
   if (ShowCategory == "none")
     Opts.ShowCategories = 0;
@@ -1108,7 +1108,7 @@ static void ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
       << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
       << ShowCategory;
 
-  llvm::StringRef Format =
+  StringRef Format =
     Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
   if (Format == "clang")
     Opts.Format = DiagnosticOptions::Clang;
@@ -1325,7 +1325,7 @@ static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
     InputKind IK = DashX;
     if (IK == IK_None) {
       IK = FrontendOptions::getInputKindForExtension(
-        llvm::StringRef(Inputs[i]).rsplit('.').second);
+        StringRef(Inputs[i]).rsplit('.').second);
       // FIXME: Remove this hack.
       if (i == 0)
         DashX = IK;
@@ -1371,7 +1371,7 @@ static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
                  /*IsFramework=*/ (*it)->getOption().matches(OPT_F), false);
 
   // Add -iprefix/-iwith-prefix/-iwithprefixbefore options.
-  llvm::StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
+  StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
   for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix,
                                              OPT_iwithprefixbefore),
          ie = Args.filtered_end(); it != ie; ++it) {
@@ -1593,7 +1593,7 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
   if (Args.hasArg(OPT_fdelayed_template_parsing))
     Opts.DelayedTemplateParsing = 1;
 
-  llvm::StringRef Vis = Args.getLastArgValue(OPT_fvisibility, "default");
+  StringRef Vis = Args.getLastArgValue(OPT_fvisibility, "default");
   if (Vis == "default")
     Opts.setVisibilityMode(DefaultVisibility);
   else if (Vis == "hidden")
@@ -1731,12 +1731,12 @@ static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
   }
 
   if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
-    llvm::StringRef Value(A->getValue(Args));
+    StringRef Value(A->getValue(Args));
     size_t Comma = Value.find(',');
     unsigned Bytes = 0;
     unsigned EndOfLine = 0;
 
-    if (Comma == llvm::StringRef::npos ||
+    if (Comma == StringRef::npos ||
         Value.substr(0, Comma).getAsInteger(10, Bytes) ||
         Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
       Diags.Report(diag::err_drv_preamble_format);
@@ -1787,8 +1787,8 @@ static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
   for (arg_iterator it = Args.filtered_begin(OPT_remap_file),
          ie = Args.filtered_end(); it != ie; ++it) {
     const Arg *A = *it;
-    std::pair<llvm::StringRef,llvm::StringRef> Split =
-      llvm::StringRef(A->getValue(Args)).split(';');
+    std::pair<StringRef,StringRef> Split =
+      StringRef(A->getValue(Args)).split(';');
 
     if (Split.second.empty()) {
       Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
@@ -1799,7 +1799,7 @@ static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
   }
   
   if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
-    llvm::StringRef Name = A->getValue(Args);
+    StringRef Name = A->getValue(Args);
     unsigned Library = llvm::StringSwitch<unsigned>(Name)
       .Case("libc++", ARCXX_libcxx)
       .Case("libstdc++", ARCXX_libstdcxx)
diff --git a/lib/Frontend/CreateInvocationFromCommandLine.cpp b/lib/Frontend/CreateInvocationFromCommandLine.cpp
index 42b648aa64..fa34334b5d 100644
--- a/lib/Frontend/CreateInvocationFromCommandLine.cpp
+++ b/lib/Frontend/CreateInvocationFromCommandLine.cpp
@@ -39,7 +39,7 @@ clang::createInvocationFromCommandLine(llvm::ArrayRef<const char *> ArgList,
                                                 ArgList.begin());
   }
 
-  llvm::SmallVector<const char *, 16> Args;
+  SmallVector<const char *, 16> Args;
   Args.push_back("<clang>"); // FIXME: Remove dummy argument.
   Args.insert(Args.end(), ArgList.begin(), ArgList.end());
 
@@ -74,7 +74,7 @@ clang::createInvocationFromCommandLine(llvm::ArrayRef<const char *> ArgList,
   }
 
   const driver::Command *Cmd = cast<driver::Command>(*Jobs.begin());
-  if (llvm::StringRef(Cmd->getCreator().getName()) != "clang") {
+  if (StringRef(Cmd->getCreator().getName()) != "clang") {
     Diags->Report(diag::err_fe_expected_clang_command);
     return 0;
   }
diff --git a/lib/Frontend/DependencyFile.cpp b/lib/Frontend/DependencyFile.cpp
index 1edd09b06c..9cffed2b35 100644
--- a/lib/Frontend/DependencyFile.cpp
+++ b/lib/Frontend/DependencyFile.cpp
@@ -32,19 +32,19 @@ class DependencyFileCallback : public PPCallbacks {
   llvm::StringSet<> FilesSet;
   const Preprocessor *PP;
   std::vector<std::string> Targets;
-  llvm::raw_ostream *OS;
+  raw_ostream *OS;
   bool IncludeSystemHeaders;
   bool PhonyTarget;
   bool AddMissingHeaderDeps;
 private:
   bool FileMatchesDepCriteria(const char *Filename,
                               SrcMgr::CharacteristicKind FileType);
-  void AddFilename(llvm::StringRef Filename);
+  void AddFilename(StringRef Filename);
   void OutputDependencyFile();
 
 public:
   DependencyFileCallback(const Preprocessor *_PP,
-                         llvm::raw_ostream *_OS,
+                         raw_ostream *_OS,
                          const DependencyOutputOptions &Opts)
     : PP(_PP), Targets(Opts.Targets), OS(_OS),
       IncludeSystemHeaders(Opts.IncludeSystemHeaders),
@@ -55,12 +55,12 @@ public:
                            SrcMgr::CharacteristicKind FileType);
   virtual void InclusionDirec