2 files changed, 18 insertions, 0 deletions
diff --git a/clang/lib/Basic/Attributes.cpp b/clang/lib/Basic/Attributes.cpp
new file mode 100644
index 00000000000..c882bc226d4
--- /dev/null
+++ b/clang/lib/Basic/Attributes.cpp
@@ -0,0 +1,17 @@
+#include "clang/Basic/Attributes.h"
+#include "clang/Basic/IdentifierTable.h"
+#include "llvm/ADT/StringSwitch.h"
+using namespace clang;
+
+bool clang::HasAttribute(AttrSyntax Syntax, const IdentifierInfo *Scope,
+                         const IdentifierInfo *Attr, const llvm::Triple &T,
+                         const LangOptions &LangOpts) {
+  StringRef Name = Attr->getName();
+  // Normalize the attribute name, __foo__ becomes foo.
+  if (Name.size() >= 4 && Name.startswith("__") && Name.endswith("__"))
+    Name = Name.substr(2, Name.size() - 4);
+
+#include "clang/Basic/AttrHasAttributeImpl.inc"
+
+  return false;
+}
diff --git a/clang/lib/Basic/CMakeLists.txt b/clang/lib/Basic/CMakeLists.txt
index d248d3dc827..0448fdb0d41 100644
--- a/clang/lib/Basic/CMakeLists.txt
+++ b/clang/lib/Basic/CMakeLists.txt
@@ -4,6 +4,7 @@ set(LLVM_LINK_COMPONENTS
   )
 
 add_clang_library(clangBasic
+  Attributes.cpp
   Builtins.cpp
   CharInfo.cpp
   Diagnostic.cpp