Add the returns_twice attribute to LLVM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141001 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/CppBackend/CPPBackend.cpp b/lib/Target/CppBackend/CPPBackend.cpp
index 16401a8..9a6ff32 100644
--- a/lib/Target/CppBackend/CPPBackend.cpp
+++ b/lib/Target/CppBackend/CPPBackend.cpp
@@ -470,7 +470,7 @@
       HANDLE_ATTR(NoImplicitFloat);
       HANDLE_ATTR(Naked);
       HANDLE_ATTR(InlineHint);
-      HANDLE_ATTR(Hotpatch);
+      HANDLE_ATTR(ReturnsTwice);
       HANDLE_ATTR(UWTable);
       HANDLE_ATTR(NonLazyBind);
 #undef HANDLE_ATTR