Revert "Revert "Revert "Revert "DebugInfo: Omit debug info for dynamic classes in TUs that do not have the vtable for that class""""

This reverts commit r188687 (reverts r188642 (reverts 188600 (reverts
188576))).

With added test coverage & fix for -gline-tables-only.

Thanks Michael Gottesman for reverting this patch when it demonstrated
problems & providing a reproduction/details to help me track this down.

llvm-svn: 188739

1 files changed, 8 insertions, 5 deletions

diff --git a/clang/lib/CodeGen/CGDebugInfo.h b/clang/lib/CodeGen/CGDebugInfo.h
index 54b9267f8e4..d0e16bfe3eb 100644
--- a/clang/lib/CodeGen/CGDebugInfo.h
+++ b/clang/lib/CodeGen/CGDebugInfo.h
@@ -291,7 +291,7 @@ public:
 
   void completeType(const RecordDecl *RD);
   void completeRequiredType(const RecordDecl *RD);
-
+  void completeClassData(const RecordDecl *RD);
 
 private:
   /// EmitDeclare - Emit call to llvm.dbg.declare for a variable declaration.
@@ -354,10 +354,13 @@ private:
   /// declaration for the given method definition.
   llvm::DISubprogram getFunctionDeclaration(const Decl *D);
 
-  /// getStaticDataMemberDeclaration - Return debug info descriptor to
-  /// describe in-class static data member declaration for the given
-  /// out-of-class definition.
-  llvm::DIDerivedType getStaticDataMemberDeclaration(const VarDecl *D);
+  /// Return debug info descriptor to describe in-class static data member
+  /// declaration for the given out-of-class definition.
+  llvm::DIDerivedType
+  getOrCreateStaticDataMemberDeclarationOrNull(const VarDecl *D);
+  llvm::DIDerivedType
+  getOrCreateStaticDataMemberDeclaration(const VarDecl *D,
+                                         llvm::DICompositeType Ctxt);
 
   /// getFunctionName - Get function name for the given FunctionDecl. If the
   /// name is constructred on demand (e.g. C++ destructor) then the name