1 files changed, 9 insertions, 3 deletions
diff --git a/contrib/llvm/lib/CodeGen/CriticalAntiDepBreaker.h b/contrib/llvm/lib/CodeGen/CriticalAntiDepBreaker.h
index 0ed7c35..0daaef2 100644
--- a/contrib/llvm/lib/CodeGen/CriticalAntiDepBreaker.h
+++ b/contrib/llvm/lib/CodeGen/CriticalAntiDepBreaker.h
@@ -48,8 +48,10 @@ class TargetRegisterInfo;
     /// pointer.
     std::vector<const TargetRegisterClass*> Classes;
 
-    /// RegRegs - Map registers to all their references within a live range.
+    /// RegRefs - Map registers to all their references within a live range.
     std::multimap<unsigned, MachineOperand *> RegRefs;
+    typedef std::multimap<unsigned, MachineOperand *>::const_iterator
+      RegRefIter;
 
     /// KillIndices - The index of the most recent kill (proceding bottom-up),
     /// or ~0u if the register is not live.
@@ -90,10 +92,14 @@ class TargetRegisterInfo;
   private:
     void PrescanInstruction(MachineInstr *MI);
     void ScanInstruction(MachineInstr *MI, unsigned Count);
-    unsigned findSuitableFreeRegister(MachineInstr *MI,
+    bool isNewRegClobberedByRefs(RegRefIter RegRefBegin,
+                                 RegRefIter RegRefEnd,
+                                 unsigned NewReg);
+    unsigned findSuitableFreeRegister(RegRefIter RegRefBegin,
+                                      RegRefIter RegRefEnd,
                                       unsigned AntiDepReg,
                                       unsigned LastNewReg,
-                                      const TargetRegisterClass *);
+                                      const TargetRegisterClass *RC);
   };
 }