Allow DwarfCompileUnit::constructImportedEntityDIE to instanciate a GlobalVariable DIE.

Usually global variables are in a retain list and instanciated before
any call to constructImportedEntityDIE is made. This isn't true for
forward declarations though.
The testcase for this change is generated by a clang patched to emit
such forward declarations (patch at http://reviews.llvm.org/D6173
which will land soon). The updated testcase tests more than just
global variables, it now tests every type of 'using' clause we
support.

llvm-svn: 222217

1 files changed, 2 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index 4dc1224c4a4..2f1b0e5b161 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -646,6 +646,8 @@ DwarfCompileUnit::constructImportedEntityDIE(const DIImportedEntity &Module) {
     EntityDie = getOrCreateSubprogramDIE(DISubprogram(Entity));
   else if (Entity.isType())
     EntityDie = getOrCreateTypeDIE(DIType(Entity));
+  else if (Entity.isGlobalVariable())
+    EntityDie = getOrCreateGlobalVariableDIE(DIGlobalVariable(Entity));
   else
     EntityDie = getDIE(Entity);
   assert(EntityDie);