[weak vtables] Remove a bunch of weak vtables

This patch removes most of the trivial cases of weak vtables by pinning them to
a single object file.

Differential Revision: http://llvm-reviews.chandlerc.com/D2068

Reviewed by Andy

llvm-svn: 194865

4 files changed, 20 insertions, 0 deletions

diff --git a/llvm/lib/Support/CommandLine.cpp b/llvm/lib/Support/CommandLine.cpp
index a47af2729f3..c25b08e628b 100644
--- a/llvm/lib/Support/CommandLine.cpp
+++ b/llvm/lib/Support/CommandLine.cpp
@@ -60,6 +60,7 @@ 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() {}
@@ -73,6 +74,7 @@ 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 1eafb96fde0..b91be9d600a 100644
--- a/llvm/lib/Support/ErrorHandling.cpp
+++ b/llvm/lib/Support/ErrorHandling.cpp
@@ -17,6 +17,7 @@
 #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"
@@ -119,3 +120,4 @@ 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 9e506128bc2..38303b4c015 100644
--- a/llvm/lib/Support/YAMLParser.cpp
+++ b/llvm/lib/Support/YAMLParser.cpp
@@ -96,6 +96,15 @@ 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 f103ed8bcbe..c20ce888ad3 100644
--- a/llvm/lib/Support/YAMLTraits.cpp
+++ b/llvm/lib/Support/YAMLTraits.cpp
@@ -59,6 +59,13 @@ 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;
 }