Revert r178845 - Fix bug in PEI's virtual-register scavenging

[oota-llvm.git] / include / llvm / CodeGen / RegisterScavenging.h

diff --git a/include/llvm/CodeGen/RegisterScavenging.h b/include/llvm/CodeGen/RegisterScavenging.h
index 95bf29167c2010b3b43f0433d1d4d2708104e052..49d16892f87afb0862a6895562f138bd03fcf568 100644 (file)
--- a/include/llvm/CodeGen/RegisterScavenging.h
+++ b/include/llvm/CodeGen/RegisterScavenging.h
@@ -93,15 +93,6 @@ public:
     while (MBBI != I) forward();
   }
 
-  /// Invert the behavior of forward() on the current instruction (undo the
-  /// changes to the available registers made by forward()).
-  void unprocess();
-
-  /// Unprocess instructions until you reach the provided iterator.
-  void unprocess(MachineBasicBlock::iterator I) {
-    while (MBBI != I) unprocess();
-  }
-
   /// skipTo - Move the internal MBB iterator but do not update register states.
   void skipTo(MachineBasicBlock::iterator I) {
     if (I == MachineBasicBlock::iterator(NULL))
@@ -109,10 +100,6 @@ public:
     MBBI = I;
   }
 
-  MachineBasicBlock::iterator getCurrentPosition() const {
-    return MBBI;
-  }
-
   /// getRegsUsed - return all registers currently in use in used.
   void getRegsUsed(BitVector &used, bool includeReserved);
 
@@ -184,10 +171,6 @@ private:
     RegsAvailable |= Regs;
   }
 
-  /// Processes the current instruction and fill the KillRegs and DefRegs bit
-  /// vectors.
-  void determineKillsAndDefs();
-
   /// Add Reg and all its sub-registers to BV.
   void addRegWithSubRegs(BitVector &BV, unsigned Reg);