Emit C++11 enum class information if it exists.

Part of rdar://11496790

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157304 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index 1df32d85cc5597d7454279707e76c8d1529eaaab..3899604d75fd3d2fc6ea2bd1edfc7b59f04c9319 100644 (file)
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -1586,9 +1586,12 @@ llvm::DIType CGDebugInfo::CreateEnumType(const EnumDecl *ED) {
   }
   llvm::DIDescriptor EnumContext = 
     getContextDescriptor(cast<Decl>(ED->getDeclContext()));
+  llvm::DIType ClassTy = ED->isScopedUsingClassTag() ?
+    getOrCreateType(ED->getIntegerType(), DefUnit) : llvm::DIType();
   llvm::DIType DbgTy = 
     DBuilder.createEnumerationType(EnumContext, ED->getName(), DefUnit, Line,
-                                   Size, Align, EltArray);
+                                   Size, Align, EltArray,
+                                   ClassTy);
   return DbgTy;
 }
 

diff --git a/test/CodeGenCXX/debug-info-enum-class.cpp b/test/CodeGenCXX/debug-info-enum-class.cpp
new file mode 100644 (file)
index 0000000..e2d4619
--- /dev/null
+++ b/test/CodeGenCXX/debug-info-enum-class.cpp
@@ -0,0 +1,12 @@
+// RUN: %clang_cc1 -emit-llvm -g -triple x86_64-apple-darwin -std=c++11 %s -o - | FileCheck %s
+
+enum class A { A1=1 };                 // underlying type is int by default
+enum class B: unsigned long { B1=1 };  // underlying type is unsigned long
+enum C { C1 = 1 };
+A a;
+B b;
+C c;
+
+// CHECK: metadata !{i32 {{.*}}, null, metadata !"A", metadata !4, i32 3, i64 32, i64 32, i32 0, i32 0, metadata !5, metadata !6, i32 0, i32 0} ; [ DW_TAG_enumeration_type ]
+// CHECK: metadata !{i32 {{.*}}, null, metadata !"B", metadata !4, i32 4, i64 64, i64 64, i32 0, i32 0, metadata !9, metadata !10, i32 0, i32 0} ; [ DW_TAG_enumeration_type ]
+// CHECK: metadata !{i32 {{.*}}, null, metadata !"C", metadata !4, i32 5, i64 32, i64 32, i32 0, i32 0, null, metadata !13, i32 0, i32 0} ; [ DW_TAG_enumeration_type ]