Support for C1x _Atomic specifier (see testcase). This is primarily being committed at the moment to help support C++0x <atomic>, but it should be a solid base for implementing the full specification of C1x _Atomic.

Thanks to Jeffrey Yasskin for the thorough review!

llvm-svn: 141330

1 files changed, 8 insertions, 0 deletions

diff --git a/clang/lib/AST/ItaniumMangle.cpp b/clang/lib/AST/ItaniumMangle.cpp
index e94cb2d54bc..41cfa6ad01e 100644
--- a/clang/lib/AST/ItaniumMangle.cpp
+++ b/clang/lib/AST/ItaniumMangle.cpp
@@ -788,6 +788,7 @@ void CXXNameMangler::mangleUnresolvedPrefix(NestedNameSpecifier *qualifier,
     case Type::ObjCObject:
     case Type::ObjCInterface:
     case Type::ObjCObjectPointer:
+    case Type::Atomic:
       llvm_unreachable("type is illegal as a nested name specifier");
 
     case Type::SubstTemplateTypeParmPack:
@@ -2111,6 +2112,13 @@ void CXXNameMangler::mangleType(const AutoType *T) {
     mangleType(D);
 }
 
+void CXXNameMangler::mangleType(const AtomicType *T) {
+  // <type> ::= U <source-name> <type>	# vendor extended type qualifier
+  // (Until there's a standardized mangling...)
+  Out << "U7_Atomic";
+  mangleType(T->getValueType());
+}
+
 void CXXNameMangler::mangleIntegerLiteral(QualType T,
                                           const llvm::APSInt &Value) {
   //  <expr-primary> ::= L <type> <value number> E # integer literal