The header file for a translation unit should always be included first
System headers should be last

llvm-svn: 475
diff --git a/llvm/lib/CodeGen/MachineInstr.cpp b/llvm/lib/CodeGen/MachineInstr.cpp
index d636d3a..4a63258 100644
--- a/llvm/lib/CodeGen/MachineInstr.cpp
+++ b/llvm/lib/CodeGen/MachineInstr.cpp
@@ -13,17 +13,11 @@
 //**************************************************************************/
 
 
-//************************** System Include Files ***************************/
-
-#include <strstream>
-
-
-//*************************** User Include Files ***************************/
-
+#include "llvm/CodeGen/MachineInstr.h"
 #include "llvm/Method.h"
 #include "llvm/ConstPoolVals.h"
 #include "llvm/Instruction.h"
-#include "llvm/CodeGen/MachineInstr.h"
+#include <strstream>
 
 
 //************************ Class Implementations **************************/