[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

1 files changed, 7 insertions, 0 deletions

diff --git a/llvm/lib/Support/YAMLTraits.cpp b/llvm/lib/Support/YAMLTraits.cpp
index f103ed8..c20ce88 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;
 }