Support C++11 enum forward declarations.
Part of rdar://11570854
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157787 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index 3899604..e879175 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -1588,10 +1588,11 @@
getContextDescriptor(cast<Decl>(ED->getDeclContext()));
llvm::DIType ClassTy = ED->isScopedUsingClassTag() ?
getOrCreateType(ED->getIntegerType(), DefUnit) : llvm::DIType();
+ unsigned Flags = !ED->isCompleteDefinition() ? llvm::DIDescriptor::FlagFwdDecl : 0;
llvm::DIType DbgTy =
DBuilder.createEnumerationType(EnumContext, ED->getName(), DefUnit, Line,
Size, Align, EltArray,
- ClassTy);
+ ClassTy, Flags);
return DbgTy;
}
diff --git a/test/CodeGenCXX/debug-info-enum-class.cpp b/test/CodeGenCXX/debug-info-enum-class.cpp
index e2d4619..6f88439 100644
--- a/test/CodeGenCXX/debug-info-enum-class.cpp
+++ b/test/CodeGenCXX/debug-info-enum-class.cpp
@@ -3,10 +3,13 @@
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 };
+enum D : short; // enum forward declaration
A a;
B b;
C c;
+D d;
// 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 ]
+// CHECK: metadata !{i32 {{.*}}, null, metadata !"D", metadata !4, i32 6, i64 16, i64 16, i32 0, i32 4, null, metadata !16, i32 0, i32 0} ; [ DW_TAG_enumeration_type ]
