PR14606: Debug info for using directives/DW_TAG_imported_module
More changes later for using declarations/DW_TAG_imported_declaration.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179837 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index dedf601..589528e 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -2929,6 +2929,13 @@
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 060b738..4080492 100644
--- a/lib/CodeGen/CGDebugInfo.h
+++ b/lib/CodeGen/CGDebugInfo.h
@@ -262,6 +262,9 @@
/// 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 9ad9cf0..3ce6dec 100644
--- a/lib/CodeGen/CGDecl.cpp
+++ b/lib/CodeGen/CGDecl.cpp
@@ -80,7 +80,6 @@
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;
@@ -90,6 +89,10 @@
// 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() &&