Modify the two address instruction pass to remove the duplicate

operand of the instruction and thus simplify the register allocation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11124 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 18 deletions

diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp
index 869d963d53..9d7b1b2d99 100644
--- a/lib/CodeGen/MachineInstr.cpp
+++ b/lib/CodeGen/MachineInstr.cpp
@@ -27,24 +27,6 @@ namespace llvm {
 //
 extern const TargetInstrDescriptor *TargetInstrDescriptors;
 
-bool MachineOperand::isEverUsed(const MachineInstr& mi) const
-{
-    for (int i = 0, e = mi.getNumOperands(); i != e; ++i) {
-        if (*this == mi.getOperand(i) && mi.getOperand(i).isUse())
-            return true;
-    }
-    return false;
-}
-
-bool MachineOperand::isEverDefined(const MachineInstr& mi) const
-{
-    for (int i = 0, e = mi.getNumOperands(); i != e; ++i) {
-        if (*this == mi.getOperand(i) && mi.getOperand(i).isDef())
-            return true;
-    }
-    return false;
-}
-
 // Constructor for instructions with variable #operands
 MachineInstr::MachineInstr(MachineOpCode OpCode, unsigned  numOperands)
   : opCode(OpCode),