Revert r194865 and r194874.

This change is incorrect. If you delete virtual destructor of both a base class
and a subclass, then the following code:
  Base *foo = new Child();
  delete foo;
will not cause the destructor for members of Child class. As a result, I observe
plently of memory leaks. Notable examples I investigated are:
ObjectBuffer and ObjectBufferStream, AttributeImpl and StringSAttributeImpl.

llvm-svn: 194997

4 files changed, 0 insertions, 20 deletions

diff --git a/llvm/lib/Support/CommandLine.cpp b/llvm/lib/Support/CommandLine.cpp
index c25b08e628b..a47af2729f3 100644
--- a/llvm/lib/Support/CommandLine.cpp
+++ b/llvm/lib/Support/CommandLine.cpp
@@ -60,7 +60,6 @@ TEMPLATE_INSTANTIATION(class opt<char>);
 TEMPLATE_INSTANTIATION(class opt<bool>);
 } } // end namespace llvm::cl
 
-void GenericOptionValue::anchor() {}
 void OptionValue<boolOrDefault>::anchor() {}
 void OptionValue<std::string>::anchor() {}
 void Option::anchor() {}
@@ -74,7 +73,6 @@ void parser<double>::anchor() {}
 void parser<float>::anchor() {}
 void parser<std::string>::anchor() {}
 void parser<char>::anchor() {}
-void StringSaver::anchor() {}
 
 //===----------------------------------------------------------------------===//
 
diff --git a/llvm/lib/Support/ErrorHandling.cpp b/llvm/lib/Support/ErrorHandling.cpp
index b91be9d600a..1eafb96fde0 100644
--- a/llvm/lib/Support/ErrorHandling.cpp
+++ b/llvm/lib/Support/ErrorHandling.cpp
@@ -17,7 +17,6 @@
 #include "llvm/ADT/Twine.h"
 #include "llvm/Config/config.h"
 #include "llvm/Support/Debug.h"
-#include "llvm/Support/ErrorOr.h"
 #include "llvm/Support/Signals.h"
 #include "llvm/Support/Threading.h"
 #include "llvm/Support/raw_ostream.h"
@@ -120,4 +119,3 @@ void LLVMInstallFatalErrorHandler(LLVMFatalErrorHandler Handler) {
 void LLVMResetFatalErrorHandler() {
   remove_fatal_error_handler();
 }
-
diff --git a/llvm/lib/Support/YAMLParser.cpp b/llvm/lib/Support/YAMLParser.cpp
index 38303b4c015..9e506128bc2 100644
--- a/llvm/lib/Support/YAMLParser.cpp
+++ b/llvm/lib/Support/YAMLParser.cpp
@@ -96,15 +96,6 @@ static EncodingInfo getUnicodeEncoding(StringRef Input) {
 
 namespace llvm {
 namespace yaml {
-/// pin the vtables to this file
-void Node::anchor() {}
-void NullNode::anchor() {}
-void ScalarNode::anchor() {}
-void KeyValueNode::anchor() {}
-void MappingNode::anchor() {}
-void SequenceNode::anchor() {}
-void AliasNode::anchor() {}
-
 /// Token - A single YAML token.
 struct Token : ilist_node<Token> {
   enum TokenKind {
diff --git a/llvm/lib/Support/YAMLTraits.cpp b/llvm/lib/Support/YAMLTraits.cpp
index c20ce888ad3..f103ed8bcbe 100644
--- a/llvm/lib/Support/YAMLTraits.cpp
+++ b/llvm/lib/Support/YAMLTraits.cpp
@@ -59,13 +59,6 @@ void Input::setDiagHandler(SourceMgr::DiagHandlerTy Handler, void *Ctxt) {
   SrcMgr.setDiagHandler(Handler, Ctxt);
 }
 
-/// pin the vtables to this file
-void Input::HNode::anchor() {}
-void Input::EmptyHNode::anchor() {}
-void Input::ScalarHNode::anchor() {}
-void Input::MapHNode::anchor() {}
-void Input::SequenceHNode::anchor() {}
-
 bool Input::outputting() const {
   return false;
 }