Do not insert physical regsiters into the regsUsed set

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7617 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 0 insertions, 5 deletions

diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h
index d26f676a6e..faa213bf26 100644
--- a/include/llvm/CodeGen/MachineInstr.h
+++ b/include/llvm/CodeGen/MachineInstr.h
@@ -530,7 +530,6 @@ public:
            "Trying to add an operand to a machine instr that is already done!");
     operands.push_back(MachineOperand(reg, MachineOperand::MO_MachineRegister,
                                       isDef ? MOTy::Def : MOTy::Use));
-    insertUsedReg(reg);
   }
 
   /// addMachineRegOperand - Add a virtual register operand to this MachineInstr
@@ -540,7 +539,6 @@ public:
            "Trying to add an operand to a machine instr that is already done!");
     operands.push_back(MachineOperand(reg, MachineOperand::MO_MachineRegister,
                                       UTy));
-    insertUsedReg(reg);
   }
 
   /// addZeroExtImmOperand - Add a zero extended constant argument to the
diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp
index 904a412add..8678d14e0e 100644
--- a/lib/CodeGen/MachineInstr.cpp
+++ b/lib/CodeGen/MachineInstr.cpp
@@ -111,7 +111,6 @@ void MachineInstr::SetMachineOperandReg(unsigned i, int regNum) {
   operands[i].opType = MachineOperand::MO_MachineRegister;
   operands[i].value = NULL;
   operands[i].regNum = regNum;
-  insertUsedReg(regNum);
 }
 
 void
@@ -119,14 +118,12 @@ MachineInstr::SetRegForOperand(unsigned i, int regNum)
 {
   assert(i < getNumOperands());          // must be explicit op
   operands[i].setRegForValue(regNum);
-  insertUsedReg(regNum);
 }
 
 void
 MachineInstr::SetRegForImplicitRef(unsigned i, int regNum)
 {
   getImplicitOp(i).setRegForValue(regNum);
-  insertUsedReg(regNum);
 }