diff --git a/utils/TableGen/TableGen.cpp b/utils/TableGen/TableGen.cpp
index d89d3dbb004..2409d37196b 100644
--- a/utils/TableGen/TableGen.cpp
+++ b/utils/TableGen/TableGen.cpp
@@ -421,18 +421,15 @@ int main(int argc, char **argv) {
 
   std::ostream *Out = &std::cout;
   if (OutputFilename != "-") {
-    // Output to a .tmp file, because we don't actually want to overwrite the
-    // output file unless the generated file is different or the specified file
-    // does not exist.
-    Out = new std::ofstream((OutputFilename+".tmp").c_str());
+    Out = new std::ofstream(OutputFilename.c_str());
 
     if (!Out->good()) {
-      std::cerr << argv[0] << ": error opening " << OutputFilename << ".tmp!\n";
+      std::cerr << argv[0] << ": error opening " << OutputFilename << "!\n";
       return 1;
     }
 
     // Make sure the file gets removed if *gasp* tablegen crashes...
-    RemoveFileOnSignal(OutputFilename+".tmp");
+    RemoveFileOnSignal(OutputFilename);
   }
 
   try {
@@ -492,14 +489,6 @@ int main(int argc, char **argv) {
 
   if (Out != &std::cout) {
     delete Out;                               // Close the file
-    
-    // Now that we have generated the result, check to see if we either don't
-    // have the requested file, or if the requested file is different than the
-    // file we generated.  If so, move the generated file over the requested
-    // file.  Otherwise, just remove the file we just generated, so 'make'
-    // doesn't try to regenerate tons of dependencies.
-    //
-    MoveFileOverIfUpdated(OutputFilename+".tmp", OutputFilename);
   }
   return 0;
 }