[Orc][RPC] Add a HandlerTratis specialization for free functions.

llvm-svn: 294392

2 files changed, 14 insertions, 0 deletions

diff --git a/llvm/include/llvm/ExecutionEngine/Orc/RPCUtils.h b/llvm/include/llvm/ExecutionEngine/Orc/RPCUtils.h
index c0ea94897be..be620d4f0d7 100644
--- a/llvm/include/llvm/ExecutionEngine/Orc/RPCUtils.h
+++ b/llvm/include/llvm/ExecutionEngine/Orc/RPCUtils.h
@@ -417,6 +417,11 @@ private:
   }
 };
 
+// Handler traits for free functions.
+template <typename RetT, typename... ArgTs>
+class HandlerTraits<RetT(*)(ArgTs...)>
+  : public HandlerTraits<RetT(ArgTs...)> {};
+
 // Handler traits for class methods (especially call operators for lambdas).
 template <typename Class, typename RetT, typename... ArgTs>
 class HandlerTraits<RetT (Class::*)(ArgTs...)>
diff --git a/llvm/unittests/ExecutionEngine/Orc/RPCUtilsTest.cpp b/llvm/unittests/ExecutionEngine/Orc/RPCUtilsTest.cpp
index d21a4acc08d..71de38db442 100644
--- a/llvm/unittests/ExecutionEngine/Orc/RPCUtilsTest.cpp
+++ b/llvm/unittests/ExecutionEngine/Orc/RPCUtilsTest.cpp
@@ -145,6 +145,15 @@ private:
 };
 
 
+void freeVoidBool(bool B) {
+};
+
+TEST(DummyRPC, TestFreeFunctionHandler) {
+  Queue Q1, Q2;
+  DummyRPCEndpoint Server(Q2, Q1);
+  Server.addHandler<DummyRPCAPI::VoidBool>(freeVoidBool);
+};
+
 TEST(DummyRPC, TestAsyncVoidBool) {
   Queue Q1, Q2;
   DummyRPCEndpoint Client(Q1, Q2);