Add comment and source to testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188234 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/DebugInfo/template-recursive-void.ll b/test/DebugInfo/template-recursive-void.ll
index 6af91ff..32b7bf2 100644
--- a/test/DebugInfo/template-recursive-void.ll
+++ b/test/DebugInfo/template-recursive-void.ll
@@ -3,6 +3,16 @@
; RUN: llc -O0 -filetype=obj < %s > %t
; RUN: llvm-dwarfdump %t | FileCheck %s
+; This was pulled from clang's debug-info-template-recursive.cpp test.
+; class base { };
+
+; template <class T> class foo : public base {
+; void operator=(const foo r) { }
+; };
+
+; class bar : public foo<void> { };
+; bar filters;
+
; CHECK: DW_TAG_template_type_parameter [10]
; CHECK-NEXT: DW_AT_name{{.*}}"T"
; CHECK-NOT: DW_AT_type