diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index 6af79cd5383e9a8cb967de61aa22f100c0376640..a1f2e1f4ab63d3a943540cccf7335457524eea4f 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -783,11 +783,7 @@ ASTContext::~ASTContext() {
        A != AEnd; ++A)
     A->second->~AttrVec();
 
-  for (llvm::DenseMap<const DeclContext *, MangleNumberingContext *>::iterator
-           I = MangleNumberingContexts.begin(),
-           E = MangleNumberingContexts.end();
-       I != E; ++I)
-    delete I->second;
+  llvm::DeleteContainerSeconds(MangleNumberingContexts);
 }
 
 void ASTContext::AddDeallocation(void (*Callback)(void*), void *Data) {
diff --git a/lib/Analysis/AnalysisDeclContext.cpp b/lib/Analysis/AnalysisDeclContext.cpp
index 5a9b10775af1894c62abfc49a460bbeebcbc8eb9..baac6c18fa74232bc4c82dded920723478e30135 100644
--- a/lib/Analysis/AnalysisDeclContext.cpp
+++ b/lib/Analysis/AnalysisDeclContext.cpp
@@ -81,9 +81,7 @@ AnalysisDeclContextManager::AnalysisDeclContextManager(bool useUnoptimizedCFG,
 }
 
 void AnalysisDeclContextManager::clear() {
-  for (ContextMap::iterator I = Contexts.begin(), E = Contexts.end(); I!=E; ++I)
-    delete I->second;
-  Contexts.clear();
+  llvm::DeleteContainerSeconds(Contexts);
 }
 
 static BodyFarm &getBodyFarm(ASTContext &C) {
@@ -557,15 +555,13 @@ AnalysisDeclContext::~AnalysisDeclContext() {
   // Release the managed analyses.
   if (ManagedAnalyses) {
     ManagedAnalysisMap *M = (ManagedAnalysisMap*) ManagedAnalyses;
-    for (ManagedAnalysisMap::iterator I = M->begin(), E = M->end(); I!=E; ++I)
-      delete I->second;  
+    llvm::DeleteContainerSeconds(*M);
     delete M;
   }
 }
 
 AnalysisDeclContextManager::~AnalysisDeclContextManager() {
-  for (ContextMap::iterator I = Contexts.begin(), E = Contexts.end(); I!=E; ++I)
-    delete I->second;
+  llvm::DeleteContainerSeconds(Contexts);
 }
 
 LocationContext::~LocationContext() {}
diff --git a/lib/Analysis/CallGraph.cpp b/lib/Analysis/CallGraph.cpp
index 33870158b384bb3f511bdf76b8c23621c66a7365..24705e534b59df3b08ee1ce27dfc3514cf4f6ef9 100644
--- a/lib/Analysis/CallGraph.cpp
+++ b/lib/Analysis/CallGraph.cpp
@@ -106,12 +106,7 @@ CallGraph::CallGraph() {
 }
 
 CallGraph::~CallGraph() {
-  if (!FunctionMap.empty()) {
-    for (FunctionMapTy::iterator I = FunctionMap.begin(), E = FunctionMap.end();
-        I != E; ++I)
-      delete I->second;
-    FunctionMap.clear();
-  }
+  llvm::DeleteContainerSeconds(FunctionMap);
 }
 
 bool CallGraph::includeInGraph(const Decl *D) {
diff --git a/lib/Basic/SourceManager.cpp b/lib/Basic/SourceManager.cpp
index ab113c189421ebd708e7142024568f3a61b0cbc0..bc31189d1f76df1ade18ccc69191826e6e9c8bf8 100644
--- a/lib/Basic/SourceManager.cpp
+++ b/lib/Basic/SourceManager.cpp
@@ -404,10 +404,7 @@ SourceManager::~SourceManager() {
   delete FakeBufferForRecovery;
   delete FakeContentCacheForRecovery;
 
-  for (llvm::DenseMap<FileID, MacroArgsMap *>::iterator
-         I = MacroArgsCacheMap.begin(),E = MacroArgsCacheMap.end(); I!=E; ++I) {
-    delete I->second;
-  }
+  llvm::DeleteContainerSeconds(MacroArgsCacheMap);
 }
 
 void SourceManager::clearIDTables() {
diff --git a/lib/CodeGen/CodeGenTypes.cpp b/lib/CodeGen/CodeGenTypes.cpp
index e84a40d74ae67b3bfd73e99960609a40ebca20e4..eb7115f6e448cb723e2cd905493dcc9cb637f7e0 100644
--- a/lib/CodeGen/CodeGenTypes.cpp
+++ b/lib/CodeGen/CodeGenTypes.cpp
@@ -38,10 +38,7 @@ CodeGenTypes::CodeGenTypes(CodeGenModule &cgm)
 }
 
 CodeGenTypes::~CodeGenTypes() {
-  for (llvm::DenseMap<const Type *, CGRecordLayout *>::iterator
-         I = CGRecordLayouts.begin(), E = CGRecordLayouts.end();
-      I != E; ++I)
-    delete I->second;
+  llvm::DeleteContainerSeconds(CGRecordLayouts);
 
   for (llvm::FoldingSet<CGFunctionInfo>::iterator
        I = FunctionInfos.begin(), E = FunctionInfos.end(); I != E; )
diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
index dd650ae83384fd755c397d93e727664f1cc5e2b3..e2ff568ff34d47bd92e4663bf7ab84b37e5b43e4 100644
--- a/lib/Driver/Driver.cpp
+++ b/lib/Driver/Driver.cpp
@@ -77,10 +77,7 @@ Driver::Driver(StringRef ClangExecutable,
 Driver::~Driver() {
   delete Opts;
 
-  for (llvm::StringMap<ToolChain *>::iterator I = ToolChains.begin(),
-                                              E = ToolChains.end();
-       I != E; ++I)
-    delete I->second;
+  llvm::DeleteContainerSeconds(ToolChains);
 }
 
 void Driver::ParseDriverMode(ArrayRef<const char *> Args) {
diff --git a/lib/Frontend/ASTUnit.cpp b/lib/Frontend/ASTUnit.cpp
index d617b368065c0e8801645ef5dadbb72e6cbbd8bc..8d46a8f4a5db701644a98a3df66c004b6437fc8f 100644
--- a/lib/Frontend/ASTUnit.cpp
+++ b/lib/Frontend/ASTUnit.cpp
@@ -191,10 +191,7 @@ struct ASTUnit::ASTWriterData {
 };
 
 void ASTUnit::clearFileLevelDecls() {
-  for (FileDeclsTy::iterator
-         I = FileDecls.begin(), E = FileDecls.end(); I != E; ++I)
-    delete I->second;
-  FileDecls.clear();
+  llvm::DeleteContainerSeconds(FileDecls);
 }
 
 void ASTUnit::CleanTemporaryFiles() {
diff --git a/lib/Lex/Pragma.cpp b/lib/Lex/Pragma.cpp
index 1a7f6a5f4835c8eff6634cba7085b6ee46884b9e..2e7fb293cb7605ef0116a90ebbc5f2887b281369 100644
--- a/lib/Lex/Pragma.cpp
+++ b/lib/Lex/Pragma.cpp
@@ -48,9 +48,7 @@ void EmptyPragmaHandler::HandlePragma(Preprocessor &PP,
 //===----------------------------------------------------------------------===//
 
 PragmaNamespace::~PragmaNamespace() {
-  for (llvm::StringMap<PragmaHandler*>::iterator
-         I = Handlers.begin(), E = Handlers.end(); I != E; ++I)
-    delete I->second;
+  llvm::DeleteContainerSeconds(Handlers);
 }
 
 /// FindHandler - Check to see if there is already a handler for the
diff --git a/lib/Sema/Sema.cpp b/lib/Sema/Sema.cpp
index 416388c294c0791c66169b6a966ee03b3950543f..600da90d2c79203fffbf11aabfd24a86866c9930 100644
--- a/lib/Sema/Sema.cpp
+++ b/lib/Sema/Sema.cpp
@@ -208,10 +208,7 @@ void Sema::Initialize() {
 }
 
 Sema::~Sema() {
-  for (LateParsedTemplateMapT::iterator I = LateParsedTemplateMap.begin(),
-                                        E = LateParsedTemplateMap.end();
-       I != E; ++I)
-    delete I->second;
+  llvm::DeleteContainerSeconds(LateParsedTemplateMap);
   if (PackContext) FreePackedContext();
   if (VisContext) FreeVisContext();
   // Kill all the active scopes.
diff --git a/lib/Serialization/ASTWriter.cpp b/lib/Serialization/ASTWriter.cpp
index 18d83cfe6aeee36a5034dbf80c075e303f296a97..11b57407c29d519cc47a585e05be18abc88e56a9 100644
--- a/lib/Serialization/ASTWriter.cpp
+++ b/lib/Serialization/ASTWriter.cpp
@@ -3799,9 +3799,7 @@ ASTWriter::ASTWriter(llvm::BitstreamWriter &Stream)
 }
 
 ASTWriter::~ASTWriter() {
-  for (FileDeclIDsTy::iterator
-         I = FileDeclIDs.begin(), E = FileDeclIDs.end(); I != E; ++I)
-    delete I->second;
+  llvm::DeleteContainerSeconds(FileDeclIDs);
 }
 
 void ASTWriter::WriteAST(Sema &SemaRef,
diff --git a/lib/StaticAnalyzer/Core/BugReporter.cpp b/lib/StaticAnalyzer/Core/BugReporter.cpp
index eedf05685cc724ccab86b0b731ce161cac5405a1..f2c2ab1ae206a3d6ed0bc5149d4ea6d233555cc2 100644
--- a/lib/StaticAnalyzer/Core/BugReporter.cpp
+++ b/lib/StaticAnalyzer/Core/BugReporter.cpp
@@ -2802,9 +2802,7 @@ void BugReporter::FlushReports() {
   // EmitBasicReport.
   // FIXME: There are leaks from checkers that assume that the BugTypes they
   // create will be destroyed by the BugReporter.
-  for (llvm::StringMap<BugType*>::iterator
-         I = StrBugTypes.begin(), E = StrBugTypes.end(); I != E; ++I)
-    delete I->second;
+  llvm::DeleteContainerSeconds(StrBugTypes);
 
   // Remove all references to the BugType objects.
   BugTypes = F.getEmptySet();
diff --git a/lib/StaticAnalyzer/Core/SymbolManager.cpp b/lib/StaticAnalyzer/Core/SymbolManager.cpp
index 1b56f82dc60fcea83ad6f6a8ef4d00927de9ec4e..a04cb4161e7da10c9b56725a7c673fae979d8a7a 100644
--- a/lib/StaticAnalyzer/Core/SymbolManager.cpp
+++ b/lib/StaticAnalyzer/Core/SymbolManager.cpp
@@ -326,11 +326,7 @@ QualType SymbolRegionValue::getType() const {
 }
 
 SymbolManager::~SymbolManager() {
-  for (SymbolDependTy::const_iterator I = SymbolDependencies.begin(),
-       E = SymbolDependencies.end(); I != E; ++I) {
-    delete I->second;
-  }
-
+  llvm::DeleteContainerSeconds(SymbolDependencies);
 }
 
 bool SymbolManager::canSymbolicate(QualType T) {