MachineVerifier: Remove unused set; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304035 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/MachineVerifier.cpp b/lib/CodeGen/MachineVerifier.cpp
index b53b002..265f93c 100644 (file)
--- a/lib/CodeGen/MachineVerifier.cpp
+++ b/lib/CodeGen/MachineVerifier.cpp
@@ -87,7 +87,6 @@ namespace {
     RegSet regsLive;
     RegVector regsDefined, regsDead, regsKilled;
     RegMaskVector regMasks;
-    RegSet regsLiveInButUnused;
 
     SlotIndex lastIndex;
 
@@ -419,7 +418,6 @@ unsigned MachineVerifier::verify(MachineFunction &MF) {
   regsDead.clear();
   regsKilled.clear();
   regMasks.clear();
-  regsLiveInButUnused.clear();
   MBBInfoMap.clear();
 
   return foundErrors;
@@ -756,7 +754,6 @@ MachineVerifier::visitMachineBasicBlockBefore(const MachineBasicBlock *MBB) {
         regsLive.insert(*SubRegs);
     }
   }
-  regsLiveInButUnused = regsLive;
 
   const MachineFrameInfo &MFI = MF->getFrameInfo();
   BitVector PR = MFI.getPristineRegs(*MF);
@@ -1268,8 +1265,6 @@ void MachineVerifier::checkLiveness(const MachineOperand *MO, unsigned MONum) {
 
   // Both use and def operands can read a register.
   if (MO->readsReg()) {
-    regsLiveInButUnused.erase(Reg);
-
     if (MO->isKill())
       addRegWithSubRegs(regsKilled, Reg);