commit c0196b1b4094aeb27fd91466e0c4c1185a492daa
author Craig Topper <craig.topper@gmail.com> Mon Apr 14 00:51:57 2014 +0000
committer Craig Topper <craig.topper@gmail.com> Mon Apr 14 00:51:57 2014 +0000
tree 3a3d0ad3aebec28bee34ab7808fee8e75e567eb8
parent 0192cbac6669fb9fff8cf9a75d53757a494af9ca

[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.

llvm-svn: 206142

llvm/lib/CodeGen/LiveDebugVariables.cpp

diff --git a/llvm/lib/CodeGen/LiveDebugVariables.cpp b/llvm/lib/CodeGen/LiveDebugVariables.cpp
index bef4156..eb188cf 100644
--- a/llvm/lib/CodeGen/LiveDebugVariables.cpp
+++ b/llvm/lib/CodeGen/LiveDebugVariables.cpp
@@ -64,7 +64,7 @@
   MachineFunctionPass::getAnalysisUsage(AU);
 }
 
-LiveDebugVariables::LiveDebugVariables() : MachineFunctionPass(ID), pImpl(0) {
+LiveDebugVariables::LiveDebugVariables() : MachineFunctionPass(ID), pImpl(nullptr) {
   initializeLiveDebugVariablesPass(*PassRegistry::getPassRegistry());
 }
 
@@ -139,7 +139,7 @@
   UserValue(const MDNode *var, unsigned o, bool i, DebugLoc L,
             LocMap::Allocator &alloc)
     : variable(var), offset(o), IsIndirect(i), dl(L), leader(this),
-      next(0), locInts(alloc)
+      next(nullptr), locInts(alloc)
   {}
 
   /// getLeader - Get the leader of this value's equivalence class.
@@ -444,7 +444,7 @@
 UserValue *LDVImpl::lookupVirtReg(unsigned VirtReg) {
   if (UserValue *UV = virtRegToEqClass.lookup(VirtReg))
     return UV->getLeader();
-  return 0;
+  return nullptr;
 }
 
 bool LDVImpl::handleDebugValue(MachineInstr *MI, SlotIndex Idx) {
@@ -646,14 +646,14 @@
     const MachineOperand &Loc = locations[LocNo];
 
     if (!Loc.isReg()) {
-      extendDef(Idx, LocNo, 0, 0, 0, LIS, MDT, UVS);
+      extendDef(Idx, LocNo, nullptr, nullptr, nullptr, LIS, MDT, UVS);
       continue;
     }
 
     // Register locations are constrained to where the register value is live.
     if (TargetRegisterInfo::isVirtualRegister(Loc.getReg())) {
-      LiveInterval *LI = 0;
-      const VNInfo *VNI = 0;
+      LiveInterval *LI = nullptr;
+      const VNInfo *VNI = nullptr;
       if (LIS.hasInterval(Loc.getReg())) {
         LI = &LIS.getInterval(Loc.getReg());
         VNI = LI->getVNInfoAt(Idx);
@@ -670,7 +670,7 @@
     LiveRange *LR = &LIS.getRegUnit(Unit);
     const VNInfo *VNI = LR->getVNInfoAt(Idx);
     // Don't track copies from physregs, it is too expensive.
-    extendDef(Idx, LocNo, LR, VNI, 0, LIS, MDT, UVS);
+    extendDef(Idx, LocNo, LR, VNI, nullptr, LIS, MDT, UVS);
   }
 
   // Finally, erase all the undefs.
@@ -733,7 +733,7 @@
                          LiveIntervals& LIS) {
   DEBUG({
     dbgs() << "Splitting Loc" << OldLocNo << '\t';
-    print(dbgs(), 0);
+    print(dbgs(), nullptr);
   });
   bool DidChange = false;
   LocMap::iterator LocMapI;
@@ -823,7 +823,7 @@
     }
   }
 
-  DEBUG({dbgs() << "Split result: \t"; print(dbgs(), 0);});
+  DEBUG({dbgs() << "Split result: \t"; print(dbgs(), nullptr);});
   return DidChange;
 }