Don't overwrite previous value, if it succeeded.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99886 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp b/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
index 9b3f25dc92676faf32c3c7e822d8efa1947f9ccc..8add3f56d7dc8c2f1d082a86f0766dbac36cf654 100644 (file)
--- a/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
+++ b/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
@@ -265,7 +265,8 @@ GenericValue Interpreter::callExternalFunction(Function *F,
   if (RF == RawFunctions->end()) {
     RawFn = (RawFunc)(intptr_t)
       sys::DynamicLibrary::SearchForAddressOfSymbol(F->getName());
-    RawFn = (RawFunc)(intptr_t)getPointerToGlobalIfAvailable(F);
+    if (!RawnFn)
+       RawFn = (RawFunc)(intptr_t)getPointerToGlobalIfAvailable(F);
     if (RawFn != 0)
       RawFunctions->insert(std::make_pair(F, RawFn));  // Cache for later
   } else {