diff --git a/llvm/include/llvm/CodeGen/RegisterCoalescer.h b/llvm/include/llvm/CodeGen/RegisterCoalescer.h
index 2e9ea555f0b7..b2e09b5a0c45 100644
--- a/llvm/include/llvm/CodeGen/RegisterCoalescer.h
+++ b/llvm/include/llvm/CodeGen/RegisterCoalescer.h
@@ -91,7 +91,7 @@ namespace llvm {
   ///     int getNumberOfInterferences(const LiveInterval &a) const {
   ///       IntervalSet intervals;
   ///       getInterferences(intervals, a);
-  ///       return(intervals.size());
+  ///       return intervals.size();
   ///     };
   ///   };  
   ///
@@ -114,7 +114,7 @@ namespace llvm {
     virtual bool interfere(const LiveInterval &a,
                            const LiveInterval &b) const {
       // A naive test
-      return(a.overlaps(b));
+      return a.overlaps(b);
     };
 
     /// Return the set of intervals that interfere with this one.
diff --git a/llvm/lib/CodeGen/BranchFolding.cpp b/llvm/lib/CodeGen/BranchFolding.cpp
index 4bf943495656..85df7a9d36c1 100644
--- a/llvm/lib/CodeGen/BranchFolding.cpp
+++ b/llvm/lib/CodeGen/BranchFolding.cpp
@@ -463,7 +463,7 @@ static bool MergeCompare(const std::pair<unsigned,MachineBasicBlock*> &p,
 #ifndef _GLIBCXX_DEBUG
       assert(0 && "Predecessor appears twice");
 #endif
-      return(false);
+      return false;
     }
 }
 
diff --git a/llvm/lib/CodeGen/MachineBasicBlock.cpp b/llvm/lib/CodeGen/MachineBasicBlock.cpp
index db55a88eddc2..1d68d7cd2b9d 100644
--- a/llvm/lib/CodeGen/MachineBasicBlock.cpp
+++ b/llvm/lib/CodeGen/MachineBasicBlock.cpp
@@ -221,7 +221,7 @@ MachineBasicBlock::succ_iterator
 MachineBasicBlock::removeSuccessor(succ_iterator I) {
   assert(I != Successors.end() && "Not a current successor!");
   (*I)->removePredecessor(this);
-  return(Successors.erase(I));
+  return Successors.erase(I);
 }
 
 void MachineBasicBlock::addPredecessor(MachineBasicBlock *pred) {