Add support for atexit function, remove support for __main function


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6194 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ExecutionEngine/Interpreter/UserInput.cpp b/lib/ExecutionEngine/Interpreter/UserInput.cpp
index 0ed0f04..3f4493d 100644
--- a/lib/ExecutionEngine/Interpreter/UserInput.cpp
+++ b/lib/ExecutionEngine/Interpreter/UserInput.cpp
@@ -115,7 +115,7 @@
     case Call:
       std::cin >> Command;
       callFunction(Command);    // Enter the specified function
-      finish();               // Run until it's complete
+      finish();                 // Run until it's complete
       break;
 
     case TraceOpt:
@@ -129,6 +129,7 @@
     }
 
   } while (!UserQuit);
+  AtExitHandlers.clear();
 }
 
 //===----------------------------------------------------------------------===//