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/Execution.cpp b/lib/ExecutionEngine/Interpreter/Execution.cpp
index f03514d..44c1e48 100644
--- a/lib/ExecutionEngine/Interpreter/Execution.cpp
+++ b/lib/ExecutionEngine/Interpreter/Execution.cpp
@@ -520,7 +520,9 @@
 //                     Terminator Instruction Implementations
 //===----------------------------------------------------------------------===//
 
-static void PerformExitStuff() {
+// PerformExitStuff - Print out counters and profiling information if
+// applicable...
+void Interpreter::PerformExitStuff() {
 #ifdef PROFILE_STRUCTURE_FIELDS
   // Print out structure field accounting information...
   if (!FieldAccessCounts.empty()) {
@@ -575,7 +577,6 @@
 
   ExitCode = GV.SByteVal;
   ECStack.clear();
-  PerformExitStuff();
 }
 
 void Interpreter::visitReturnInst(ReturnInst &I) {
@@ -609,8 +610,6 @@
     } else {
       ExitCode = 0;
     }
-
-    PerformExitStuff();
     return;
   }