PR14606: Debug Info for namespace aliases/DW_TAG_imported_module

This resolves the last of the PR14606 failures in the GDB 7.5 test
suite by implementing an optional name field for
DW_TAG_imported_modules/DIImportedEntities and using that to implement
C++ namespace aliases (eg: "namespace X = Y;").

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182328 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 1 deletions

diff --git a/include/llvm/DIBuilder.h b/include/llvm/DIBuilder.h
index 72da916..1fa7bc1 100644
--- a/include/llvm/DIBuilder.h
+++ b/include/llvm/DIBuilder.h
@@ -577,8 +577,17 @@ namespace llvm {
     /// @param NS The namespace being imported here
     /// @param Line Line number
     DIImportedEntity createImportedModule(DIScope Context, DINameSpace NS,
-                                          unsigned Line);
+                                          unsigned Line,
+                                          StringRef Name = StringRef());
 
+    /// \brief Create a descriptor for an imported module.
+    /// @param Context The scope this module is imported into
+    /// @param NS An aliased namespace
+    /// @param Line Line number
+    DIImportedEntity createImportedModule(DIScope Context, DIImportedEntity NS,
+                                          unsigned Line, StringRef Name);
+
+    /// \brief Create a descriptor for an imported function.
     /// \brief Create a descriptor for an imported function.
     /// @param Context The scope this module is imported into
     /// @param Decl The declaration (or definition) of a function, type, or