Revert "PR14606: Debug info for using directives/DW_TAG_imported_module"

This reverts commit r179837 as it seems to be causing test failures.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179839 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 1 insertions, 14 deletions

diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index 589528ee1a..dedf6018aa 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -2929,13 +2929,6 @@ void CGDebugInfo::EmitGlobalVariable(const ValueDecl *VD,
                                 getStaticDataMemberDeclaration(VD));
 }
 
-void CGDebugInfo::EmitUsingDirective(const UsingDirectiveDecl &UD) {
-  DBuilder.createImportedModule(
-      getContextDescriptor(cast<Decl>(UD.getDeclContext())),
-      getOrCreateNameSpace(UD.getNominatedNamespace()),
-      getLineNumber(UD.getLocation()));
-}
-
 /// getOrCreateNamesSpace - Return namespace descriptor for the given
 /// namespace decl.
 llvm::DINameSpace 
diff --git a/lib/CodeGen/CGDebugInfo.h b/lib/CodeGen/CGDebugInfo.h
index 4080492a1c..060b738058 100644
--- a/lib/CodeGen/CGDebugInfo.h
+++ b/lib/CodeGen/CGDebugInfo.h
@@ -262,9 +262,6 @@ public:
   /// EmitGlobalVariable - Emit global variable's debug info.
   void EmitGlobalVariable(const ValueDecl *VD, llvm::Constant *Init);
 
-  /// \brief - Emit C++ using directive.
-  void EmitUsingDirective(const UsingDirectiveDecl &UD);
-
   /// getOrCreateRecordType - Emit record type's standalone debug info. 
   llvm::DIType getOrCreateRecordType(QualType Ty, SourceLocation L);
 
diff --git a/lib/CodeGen/CGDecl.cpp b/lib/CodeGen/CGDecl.cpp
index 3ce6dec6a5..9ad9cf022c 100644
--- a/lib/CodeGen/CGDecl.cpp
+++ b/lib/CodeGen/CGDecl.cpp
@@ -80,6 +80,7 @@ void CodeGenFunction::EmitDecl(const Decl &D) {
   case Decl::CXXRecord: // struct/union/class X; [C++]
   case Decl::Using:          // using X; [C++]
   case Decl::UsingShadow:
+  case Decl::UsingDirective: // using namespace X; [C++]
   case Decl::NamespaceAlias:
   case Decl::StaticAssert: // static_assert(X, ""); [C++0x]
   case Decl::Label:        // __label__ x;
@@ -89,10 +90,6 @@ void CodeGenFunction::EmitDecl(const Decl &D) {
     // None of these decls require codegen support.
     return;
 
-  case Decl::UsingDirective: // using namespace X; [C++]
-    if (CGDebugInfo *DI = getDebugInfo())
-      DI->EmitUsingDirective(cast<UsingDirectiveDecl>(D));
-    return;
   case Decl::Var: {
     const VarDecl &VD = cast<VarDecl>(D);
     assert(VD.isLocalVarDecl() &&