X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FAntiDepBreaker.h;h=a61a8efa4da01bdc871254912a3dd62110e00ab5;hb=da53f1e088ad594f604c950c6a9c62d7b6356b88;hp=df47f984d57817bdd75e1b21eff31b9eb1c07325;hpb=e29e8e100ea38be1771e5f010a5511cbb990d515;p=oota-llvm.git

diff --git a/lib/CodeGen/AntiDepBreaker.h b/lib/CodeGen/AntiDepBreaker.h
index df47f984d57..a61a8efa4da 100644
--- a/lib/CodeGen/AntiDepBreaker.h
+++ b/lib/CodeGen/AntiDepBreaker.h
@@ -12,8 +12,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_CODEGEN_ANTIDEPBREAKER_H
-#define LLVM_CODEGEN_ANTIDEPBREAKER_H
+#ifndef LLVM_LIB_CODEGEN_ANTIDEPBREAKER_H
+#define LLVM_LIB_CODEGEN_ANTIDEPBREAKER_H
 
 #include "llvm/CodeGen/MachineBasicBlock.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
@@ -25,9 +25,8 @@
 
 namespace llvm {
 
-/// AntiDepBreaker - This class works into conjunction with the
-/// post-RA scheduler to rename registers to break register
-/// anti-dependencies.
+/// This class works in conjunction with the post-RA scheduler to rename
+/// registers to break register anti-dependencies (WAR hazards).
 class AntiDepBreaker {
 public:
   typedef std::vector<std::pair<MachineInstr *, MachineInstr *> > 
@@ -35,29 +34,26 @@ public:
 
   virtual ~AntiDepBreaker();
 
-  /// Start - Initialize anti-dep breaking for a new basic block.
+  /// Initialize anti-dep breaking for a new basic block.
   virtual void StartBlock(MachineBasicBlock *BB) =0;
 
-  /// BreakAntiDependencies - Identifiy anti-dependencies within a
-  /// basic-block region and break them by renaming registers. Return
-  /// the number of anti-dependencies broken.
-  ///
+  /// Identifiy anti-dependencies within a basic-block region and break them by
+  /// renaming registers. Return the number of anti-dependencies broken.
   virtual unsigned BreakAntiDependencies(const std::vector<SUnit>& SUnits,
                                          MachineBasicBlock::iterator Begin,
                                          MachineBasicBlock::iterator End,
                                          unsigned InsertPosIndex,
                                          DbgValueVector &DbgValues) = 0;
   
-  /// Observe - Update liveness information to account for the current
+  /// Update liveness information to account for the current
   /// instruction, which will not be scheduled.
-  ///
   virtual void Observe(MachineInstr *MI, unsigned Count,
                        unsigned InsertPosIndex) =0;
   
-  /// Finish - Finish anti-dep breaking for a basic block.
+  /// Finish anti-dep breaking for a basic block.
   virtual void FinishBlock() =0;
 
-  /// UpdateDbgValue - Update DBG_VALUE if dependency breaker is updating
+  /// Update DBG_VALUE if dependency breaker is updating
   /// other machine instruction to use NewReg.
   void UpdateDbgValue(MachineInstr *MI, unsigned OldReg, unsigned NewReg) {
     assert (MI->isDebugValue() && "MI is not DBG_VALUE!");