Handle execution entrypoints with non-integer return types.
Fix from Russel Power in PR7284.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106271 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ExecutionEngine/Interpreter/Execution.cpp b/lib/ExecutionEngine/Interpreter/Execution.cpp
index 0748b54..59ebe6e 100644
--- a/lib/ExecutionEngine/Interpreter/Execution.cpp
+++ b/lib/ExecutionEngine/Interpreter/Execution.cpp
@@ -591,7 +591,7 @@
   ECStack.pop_back();
 
   if (ECStack.empty()) {  // Finished main.  Put result into exit code...
-    if (RetTy && RetTy->isIntegerTy()) {          // Nonvoid return type?
+    if (RetTy && !RetTy->isVoidTy()) {          // Nonvoid return type?
       ExitValue = Result;   // Capture the exit value of the program
     } else {
       memset(&ExitValue.Untyped, 0, sizeof(ExitValue.Untyped));