MSVC warning fixes; patch by Stein Roger!

llvm-svn: 78405

1 files changed, 11 insertions, 0 deletions

diff --git a/llvm/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp b/llvm/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
index 79948704ef1..68097fd1219 100644
--- a/llvm/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
+++ b/llvm/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
@@ -291,6 +291,12 @@ GenericValue Interpreter::callExternalFunction(Function *F,
 //===----------------------------------------------------------------------===//
 //  Functions "exported" to the running application...
 //
+
+// Visual Studio warns about returning GenericValue in extern "C" linkage
+#ifdef _MSC_VER
+    #pragma warning(disable : 4190)
+#endif
+
 extern "C" {  // Don't add C++ manglings to llvm mangling :)
 
 // void atexit(Function*)
@@ -539,6 +545,11 @@ GenericValue lle_X_fprintf(const FunctionType *FT,
 
 } // End extern "C"
 
+// Done with externals; turn the warning back on
+#ifdef _MSC_VER
+    #pragma warning(default: 4190)
+#endif
+
 
 void Interpreter::initializeExternalFunctions() {
   sys::ScopedLock Writer(*FunctionsLock);