CodeGen: Make MachineInstr::untieRegOperand() a public function

[• tstellarAMD]

Summary

This makes it easier to update in place instructions with tied operands.

[• tstellarAMD]

Ping.

[• tstellarAMD]

Ping.

[qcolombet]

Hi Tom,

LGTM.

Cheers,
-Quentin

llvm/trunk/include/llvm/CodeGen/MachineInstr.h

   }
 
   /// clearMemRefs - Clear this MachineInstr's memory reference descriptor list.
   void clearMemRefs() {
     MemRefs = nullptr;
     NumMemRefs = 0;
   }
 
-private:
-  /// getRegInfo - If this instruction is embedded into a MachineFunction,
-  /// return the MachineRegisterInfo object for the current function, otherwise
-  /// return null.
-  MachineRegisterInfo *getRegInfo();
-
   /// untieRegOperand - Break any tie involving OpIdx.
   void untieRegOperand(unsigned OpIdx) {
     MachineOperand &MO = getOperand(OpIdx);
     if (MO.isReg() && MO.isTied()) {
       getOperand(findTiedOperandIdx(OpIdx)).TiedTo = 0;
       MO.TiedTo = 0;
     }
   }
 
+
+private:
+  /// getRegInfo - If this instruction is embedded into a MachineFunction,
+  /// return the MachineRegisterInfo object for the current function, otherwise
+  /// return null.
+  MachineRegisterInfo *getRegInfo();
+
   /// addImplicitDefUseOperands - Add all implicit def and use operands to
   /// this instruction.
   void addImplicitDefUseOperands(MachineFunction &MF);
 
   /// RemoveRegOperandsFromUseLists - Unlink all of the register operands in
   /// this instruction from their respective use lists.  This requires that the
   /// operands already be on their use lists.
   void RemoveRegOperandsFromUseLists(MachineRegisterInfo&);