Adding DIImportedModules to DIScopes.

This is just the basic groundwork for supporting DW_TAG_imported_module but I
wanted to commit this before pushing support further into Clang or LLVM so that
this rather churny change is isolated from the rest of the work. The major
churn here is obviously adding another field (within the common DIScope prefix)
to all DIScopes (files, classes, namespaces, lexical scopes, etc). This should
be the last big churny change needed for DW_TAG_imported_module/using directive
support/PR14606.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178099 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/include/llvm/DIBuilder.h b/include/llvm/DIBuilder.h
index 4f0aa07130..a7a8c53e2f 100644
--- a/include/llvm/DIBuilder.h
+++ b/include/llvm/DIBuilder.h
@@ -46,6 +46,7 @@ namespace llvm {
   class DITemplateTypeParameter;
   class DITemplateValueParameter;
   class DIObjCProperty;
+  class DIImportedModule;
 
   class DIBuilder {
     private:
@@ -566,6 +567,11 @@ namespace llvm {
     DILexicalBlock createLexicalBlock(DIDescriptor Scope, DIFile File,
                                       unsigned Line, unsigned Col);
 
+
+    /// \brief Create a descriptor for an imported module.
+    /// @param NS The namespace being imported here
+    DIImportedModule createImportedModule(DINameSpace NS);
+
     /// insertDeclare - Insert a new llvm.dbg.declare intrinsic call.
     /// @param Storage     llvm::Value of the variable
     /// @param VarInfo     Variable's debug info descriptor.