X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FCodeGen%2FMachineSSAUpdater.h;h=edf93d13bd1d411cf69d95501d87294b0c69c457;hb=881a05b46c28299046bd0dc3d0b8c6677e68a4d7;hp=ca8eca82a858cac4c31534d998b5bcdda91df596;hpb=229694f0ee630ceabe96a8bd48952f6740f928b2;p=oota-llvm.git

diff --git a/include/llvm/CodeGen/MachineSSAUpdater.h b/include/llvm/CodeGen/MachineSSAUpdater.h
index ca8eca82a85..edf93d13bd1 100644
--- a/include/llvm/CodeGen/MachineSSAUpdater.h
+++ b/include/llvm/CodeGen/MachineSSAUpdater.h
@@ -14,6 +14,8 @@
 #ifndef LLVM_CODEGEN_MACHINESSAUPDATER_H
 #define LLVM_CODEGEN_MACHINESSAUPDATER_H
 
+#include "llvm/Support/Compiler.h"
+
 namespace llvm {
   class MachineBasicBlock;
   class MachineFunction;
@@ -23,23 +25,22 @@ namespace llvm {
   class TargetInstrInfo;
   class TargetRegisterClass;
   template<typename T> class SmallVectorImpl;
+  template<typename T> class SSAUpdaterTraits;
+  class BumpPtrAllocator;
 
 /// MachineSSAUpdater - This class updates SSA form for a set of virtual
 /// registers defined in multiple blocks.  This is used when code duplication
 /// or another unstructured transformation wants to rewrite a set of uses of one
 /// vreg with uses of a set of vregs.
 class MachineSSAUpdater {
+  friend class SSAUpdaterTraits<MachineSSAUpdater>;
+
+private:
   /// AvailableVals - This keeps track of which value to use on a per-block
   /// basis.  When we insert PHI nodes, we keep track of them here.
   //typedef DenseMap<MachineBasicBlock*, unsigned > AvailableValsTy;
   void *AV;
 
-  /// IncomingPredInfo - We use this as scratch space when doing our recursive
-  /// walk.  This should only be used in GetValueInBlockInternal, normally it
-  /// should be empty.
-  //std::vector<std::pair<MachineBasicBlock*, unsigned > > IncomingPredInfo;
-  void *IPI;
-
   /// VR - Current virtual register whose uses are being updated.
   unsigned VR;
 
@@ -104,9 +105,11 @@ public:
   void RewriteUse(MachineOperand &U);
 
 private:
+  void ReplaceRegWith(unsigned OldReg, unsigned NewReg);
   unsigned GetValueAtEndOfBlockInternal(MachineBasicBlock *BB);
-  void operator=(const MachineSSAUpdater&); // DO NOT IMPLEMENT
-  MachineSSAUpdater(const MachineSSAUpdater&);     // DO NOT IMPLEMENT
+
+  void operator=(const MachineSSAUpdater&) LLVM_DELETED_FUNCTION;
+  MachineSSAUpdater(const MachineSSAUpdater&) LLVM_DELETED_FUNCTION;
 };
 
 } // End llvm namespace