Remove dead code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5298 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/InstrSelection/InstrSelectionSupport.cpp b/lib/CodeGen/InstrSelection/InstrSelectionSupport.cpp
index db9058f3b3e8da082aa65420527d037aace2322d..8cd19adc85119caab90cac292856ad95b4cc6aa6 100644 (file)
--- a/lib/CodeGen/InstrSelection/InstrSelectionSupport.cpp
+++ b/lib/CodeGen/InstrSelection/InstrSelectionSupport.cpp
@@ -302,73 +302,6 @@ GetMemInstArgs(InstructionNode* memInstrNode,
                   : ptrVal;
 }
 
-
-//------------------------------------------------------------------------ 
-// Function Set2OperandsFromInstr
-// Function Set3OperandsFromInstr
-// 
-// For the common case of 2- and 3-operand arithmetic/logical instructions,
-// set the m/c instr. operands directly from the VM instruction's operands.
-// Check whether the first or second operand is 0 and can use a dedicated "0"
-// register.
-// Check whether the second operand should use an immediate field or register.
-// (First and third operands are never immediates for such instructions.)
-// 
-// Arguments:
-// canDiscardResult: Specifies that the result operand can be discarded
-//                  by using the dedicated "0"
-// 
-// op1position, op2position and resultPosition: Specify in which position
-//                  in the machine instruction the 3 operands (arg1, arg2
-//                  and result) should go.
-// 
-//------------------------------------------------------------------------ 
-
-void
-Set2OperandsFromInstr(MachineInstr* minstr,
-                     InstructionNode* vmInstrNode,
-                     const TargetMachine& target,
-                     bool canDiscardResult,
-                     int op1Position,
-                     int resultPosition)
-{
-  Set3OperandsFromInstr(minstr, vmInstrNode, target,
-                       canDiscardResult, op1Position,
-                       /*op2Position*/ -1, resultPosition);
-}
-
-
-void
-Set3OperandsFromInstr(MachineInstr* minstr,
-                     InstructionNode* vmInstrNode,
-                     const TargetMachine& target,
-                     bool canDiscardResult,
-                     int op1Position,
-                     int op2Position,
-                     int resultPosition)
-{
-  assert(op1Position >= 0);
-  assert(resultPosition >= 0);
-  
-  // operand 1
-  minstr->SetMachineOperandVal(op1Position, MachineOperand::MO_VirtualRegister,
-                           vmInstrNode->leftChild()->getValue());   
-  
-  // operand 2 (if any)
-  if (op2Position >= 0)
-    minstr->SetMachineOperandVal(op2Position, MachineOperand::MO_VirtualRegister,
-                             vmInstrNode->rightChild()->getValue());   
-  
-  // result operand: if it can be discarded, use a dead register if one exists
-  if (canDiscardResult && target.getRegInfo().getZeroRegNum() >= 0)
-    minstr->SetMachineOperandReg(resultPosition,
-                             target.getRegInfo().getZeroRegNum());
-  else
-    minstr->SetMachineOperandVal(resultPosition,
-                             MachineOperand::MO_VirtualRegister, vmInstrNode->getValue());
-}
-
-
 MachineOperand::MachineOperandType
 ChooseRegOrImmed(int64_t intValue,
                  bool isSigned,

diff --git a/lib/Target/SparcV9/InstrSelection/InstrSelectionSupport.cpp b/lib/Target/SparcV9/InstrSelection/InstrSelectionSupport.cpp
index db9058f3b3e8da082aa65420527d037aace2322d..8cd19adc85119caab90cac292856ad95b4cc6aa6 100644 (file)
--- a/lib/Target/SparcV9/InstrSelection/InstrSelectionSupport.cpp
+++ b/lib/Target/SparcV9/InstrSelection/InstrSelectionSupport.cpp
@@ -302,73 +302,6 @@ GetMemInstArgs(InstructionNode* memInstrNode,
                   : ptrVal;
 }
 
-
-//------------------------------------------------------------------------ 
-// Function Set2OperandsFromInstr
-// Function Set3OperandsFromInstr
-// 
-// For the common case of 2- and 3-operand arithmetic/logical instructions,
-// set the m/c instr. operands directly from the VM instruction's operands.
-// Check whether the first or second operand is 0 and can use a dedicated "0"
-// register.
-// Check whether the second operand should use an immediate field or register.
-// (First and third operands are never immediates for such instructions.)
-// 
-// Arguments:
-// canDiscardResult: Specifies that the result operand can be discarded
-//                  by using the dedicated "0"
-// 
-// op1position, op2position and resultPosition: Specify in which position
-//                  in the machine instruction the 3 operands (arg1, arg2
-//                  and result) should go.
-// 
-//------------------------------------------------------------------------ 
-
-void
-Set2OperandsFromInstr(MachineInstr* minstr,
-                     InstructionNode* vmInstrNode,
-                     const TargetMachine& target,
-                     bool canDiscardResult,
-                     int op1Position,
-                     int resultPosition)
-{
-  Set3OperandsFromInstr(minstr, vmInstrNode, target,
-                       canDiscardResult, op1Position,
-                       /*op2Position*/ -1, resultPosition);
-}
-
-
-void
-Set3OperandsFromInstr(MachineInstr* minstr,
-                     InstructionNode* vmInstrNode,
-                     const TargetMachine& target,
-                     bool canDiscardResult,
-                     int op1Position,
-                     int op2Position,
-                     int resultPosition)
-{
-  assert(op1Position >= 0);
-  assert(resultPosition >= 0);
-  
-  // operand 1
-  minstr->SetMachineOperandVal(op1Position, MachineOperand::MO_VirtualRegister,
-                           vmInstrNode->leftChild()->getValue());   
-  
-  // operand 2 (if any)
-  if (op2Position >= 0)
-    minstr->SetMachineOperandVal(op2Position, MachineOperand::MO_VirtualRegister,
-                             vmInstrNode->rightChild()->getValue());   
-  
-  // result operand: if it can be discarded, use a dead register if one exists
-  if (canDiscardResult && target.getRegInfo().getZeroRegNum() >= 0)
-    minstr->SetMachineOperandReg(resultPosition,
-                             target.getRegInfo().getZeroRegNum());
-  else
-    minstr->SetMachineOperandVal(resultPosition,
-                             MachineOperand::MO_VirtualRegister, vmInstrNode->getValue());
-}
-
-
 MachineOperand::MachineOperandType
 ChooseRegOrImmed(int64_t intValue,
                  bool isSigned,