Debug Info: Use identifier to reference DIType in containing type field of
a DISubprogram.
    
Verifier is updated accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190229 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index f9ea545..15bfb7e 100644
--- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -1289,7 +1289,7 @@
     addUInt(Block, 0, dwarf::DW_FORM_udata, SP.getVirtualIndex());
     addBlock(SPDie, dwarf::DW_AT_vtable_elem_location, 0, Block);
     ContainingTypeMap.insert(std::make_pair(SPDie,
-                                            SP.getContainingType()));
+                                    DD->resolve(SP.getContainingType())));
   }
 
   if (!SP.isDefinition()) {
diff --git a/lib/IR/DIBuilder.cpp b/lib/IR/DIBuilder.cpp
index cc06d4b..7ac37f4 100644
--- a/lib/IR/DIBuilder.cpp
+++ b/lib/IR/DIBuilder.cpp
@@ -1125,7 +1125,7 @@
     ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
     ConstantInt::get(Type::getInt32Ty(VMContext), (unsigned)VK),
     ConstantInt::get(Type::getInt32Ty(VMContext), VIndex),
-    VTableHolder,
+    VTableHolder.generateRef(),
     ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
     ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
     Fn,
diff --git a/lib/IR/DebugInfo.cpp b/lib/IR/DebugInfo.cpp
index 8a6f006..5828a3f 100644
--- a/lib/IR/DebugInfo.cpp
+++ b/lib/IR/DebugInfo.cpp
@@ -524,7 +524,7 @@
   if (!fieldIsMDNode(DbgNode, 7))
     return false;
   // Containing type @ field 12.
-  if (!fieldIsMDNode(DbgNode, 12))
+  if (!fieldIsTypeRef(DbgNode, 12))
     return false;
   return DbgNode->getNumOperands() == 20;
 }