diff --git a/llvm/lib/CodeGen/MachineBasicBlock.cpp b/llvm/lib/CodeGen/MachineBasicBlock.cpp
index 76099f2..85d544d 100644
--- a/llvm/lib/CodeGen/MachineBasicBlock.cpp
+++ b/llvm/lib/CodeGen/MachineBasicBlock.cpp
@@ -1182,7 +1182,7 @@
 
 /// Return whether (physical) register "Reg" has been <def>ined and not <kill>ed
 /// as of just before "MI".
-/// 
+///
 /// Search is localised to a neighborhood of
 /// Neighborhood instructions before (searching for defs or kills) and N
 /// instructions after (searching just for defs) MI.