[NFC] Fix clang-tidy issues in CalcSpillWeights.cpp

Author: mtrofin

llvm/lib/CodeGen/CalcSpillWeights.cpp

@@ -15,13 +15,13 @@
 #include "llvm/CodeGen/MachineLoopInfo.h"
 #include "llvm/CodeGen/MachineOperand.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/CodeGen/StackMaps.h"
 #include "llvm/CodeGen/TargetInstrInfo.h"
 #include "llvm/CodeGen/TargetRegisterInfo.h"
 #include "llvm/CodeGen/TargetSubtargetInfo.h"
 #include "llvm/CodeGen/VirtRegMap.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/CodeGen/StackMaps.h"
 #include <cassert>
 #include <tuple>
 
@@ -35,7 +35,7 @@ void VirtRegAuxInfo::calculateSpillWeightsAndHints() {
 
   MachineRegisterInfo &MRI = MF.getRegInfo();
   for (unsigned I = 0, E = MRI.getNumVirtRegs(); I != E; ++I) {
-    unsigned Reg = Register::index2VirtReg(I);
+    Register Reg = Register::index2VirtReg(I);
     if (MRI.reg_nodbg_empty(Reg))
       continue;
     calculateSpillWeightAndHint(LIS.getInterval(Reg));
@@ -64,14 +64,14 @@ static Register copyHint(const MachineInstr *MI, unsigned Reg,
   if (Register::isVirtualRegister(HReg))
     return Sub == HSub ? HReg : Register();
 
-  const TargetRegisterClass *rc = MRI.getRegClass(Reg);
+  const TargetRegisterClass *RC = MRI.getRegClass(Reg);
   MCRegister CopiedPReg = HSub ? TRI.getSubReg(HReg, HSub) : HReg.asMCReg();
-  if (rc->contains(CopiedPReg))
+  if (RC->contains(CopiedPReg))
     return CopiedPReg;
 
   // Check if reg:sub matches so that a super register could be hinted.
   if (Sub)
-    return TRI.getMatchingSuperReg(CopiedPReg, Sub, rc);
+    return TRI.getMatchingSuperReg(CopiedPReg, Sub, RC);
 
   return 0;
 }
@@ -80,8 +80,8 @@ static Register copyHint(const MachineInstr *MI, unsigned Reg,
 static bool isRematerializable(const LiveInterval &LI, const LiveIntervals &LIS,
                                const VirtRegMap &VRM,
                                const TargetInstrInfo &TII) {
-  unsigned Reg = LI.reg();
-  unsigned Original = VRM.getOriginal(Reg);
+  Register Reg = LI.reg();
+  Register Original = VRM.getOriginal(Reg);
   for (LiveInterval::const_vni_iterator I = LI.vni_begin(), E = LI.vni_end();
        I != E; ++I) {
     const VNInfo *VNI = *I;
@@ -183,17 +183,17 @@ float VirtRegAuxInfo::weightCalcHelper(LiveInterval &LI, SlotIndex *Start,
   bool ShouldUpdateLI = !IsLocalSplitArtifact;
 
   if (IsLocalSplitArtifact) {
-    MachineBasicBlock *localMBB = LIS.getMBBFromIndex(*End);
-    assert(localMBB == LIS.getMBBFromIndex(*Start) &&
+    MachineBasicBlock *LocalMBB = LIS.getMBBFromIndex(*End);
+    assert(LocalMBB == LIS.getMBBFromIndex(*Start) &&
            "start and end are expected to be in the same basic block");
 
     // Local split artifact will have 2 additional copy instructions and they
     // will be in the same BB.
     // localLI = COPY other
     // ...
     // other   = COPY localLI
-    TotalWeight += LiveIntervals::getSpillWeight(true, false, &MBFI, localMBB);
-    TotalWeight += LiveIntervals::getSpillWeight(false, true, &MBFI, localMBB);
+    TotalWeight += LiveIntervals::getSpillWeight(true, false, &MBFI, LocalMBB);
+    TotalWeight += LiveIntervals::getSpillWeight(false, true, &MBFI, LocalMBB);
 
     NumInstr += 2;
   }