X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FMachineModuleInfo.cpp;h=4117b1744428ed2ca5848202b14c1c538644ee4f;hb=3d6a30ea3b8272a46b1cd20684a09ea5e56c9548;hp=a916bd6412fc14270a03f4ee229b2607b214922f;hpb=6b67ffd68bb2e555b1b512a809f3c82c68f3debe;p=oota-llvm.git

diff --git a/lib/CodeGen/MachineModuleInfo.cpp b/lib/CodeGen/MachineModuleInfo.cpp
index a916bd6412f..4117b174442 100644
--- a/lib/CodeGen/MachineModuleInfo.cpp
+++ b/lib/CodeGen/MachineModuleInfo.cpp
@@ -36,8 +36,8 @@ namespace llvm {
 class MMIAddrLabelMapCallbackPtr : CallbackVH {
   MMIAddrLabelMap *Map;
 public:
-  MMIAddrLabelMapCallbackPtr() : Map(0) {}
-  MMIAddrLabelMapCallbackPtr(Value *V) : CallbackVH(V), Map(0) {}
+  MMIAddrLabelMapCallbackPtr() : Map(nullptr) {}
+  MMIAddrLabelMapCallbackPtr(Value *V) : CallbackVH(V), Map(nullptr) {}
 
   void setPtr(BasicBlock *BB) {
     ValueHandleBase::operator=(BB);
@@ -45,8 +45,8 @@ public:
 
   void setMap(MMIAddrLabelMap *map) { Map = map; }
 
-  virtual void deleted();
-  virtual void allUsesReplacedWith(Value *V2);
+  void deleted() override;
+  void allUsesReplacedWith(Value *V2) override;
 };
 
 class MMIAddrLabelMap {
@@ -163,9 +163,9 @@ void MMIAddrLabelMap::UpdateForDeletedBlock(BasicBlock *BB) {
   AddrLabelSymEntry Entry = AddrLabelSymbols[BB];
   AddrLabelSymbols.erase(BB);
   assert(!Entry.Symbols.isNull() && "Didn't have a symbol, why a callback?");
-  BBCallbacks[Entry.Index] = 0;  // Clear the callback.
+  BBCallbacks[Entry.Index] = nullptr;  // Clear the callback.
 
-  assert((BB->getParent() == 0 || BB->getParent() == Entry.Fn) &&
+  assert((BB->getParent() == nullptr || BB->getParent() == Entry.Fn) &&
          "Block/parent mismatch");
 
   // Handle both the single and the multiple symbols cases.
@@ -213,7 +213,7 @@ void MMIAddrLabelMap::UpdateForRAUWBlock(BasicBlock *Old, BasicBlock *New) {
     return;
   }
 
-  BBCallbacks[OldEntry.Index] = 0;    // Update the callback.
+  BBCallbacks[OldEntry.Index] = nullptr;    // Update the callback.
 
   // Otherwise, we need to add the old symbol to the new block's set.  If it is
   // just a single entry, upgrade it to a symbol list.
@@ -253,13 +253,12 @@ void MMIAddrLabelMapCallbackPtr::allUsesReplacedWith(Value *V2) {
 MachineModuleInfo::MachineModuleInfo(const MCAsmInfo &MAI,
                                      const MCRegisterInfo &MRI,
                                      const MCObjectFileInfo *MOFI)
-  : ImmutablePass(ID), Context(MAI, MRI, MOFI, 0, false) {
+  : ImmutablePass(ID), Context(&MAI, &MRI, MOFI, nullptr, false) {
   initializeMachineModuleInfoPass(*PassRegistry::getPassRegistry());
 }
 
 MachineModuleInfo::MachineModuleInfo()
-  : ImmutablePass(ID),
-    Context(*(MCAsmInfo*)0, *(MCRegisterInfo*)0, (MCObjectFileInfo*)0) {
+  : ImmutablePass(ID), Context(nullptr, nullptr, nullptr) {
   llvm_unreachable("This MachineModuleInfo constructor should never be called, "
                    "MMI should always be explicitly constructed by "
                    "LLVMTargetMachine");
@@ -270,16 +269,15 @@ MachineModuleInfo::~MachineModuleInfo() {
 
 bool MachineModuleInfo::doInitialization(Module &M) {
 
-  ObjFileMMI = 0;
-  CompactUnwindEncoding = 0;
+  ObjFileMMI = nullptr;
   CurCallSite = 0;
   CallsEHReturn = 0;
   CallsUnwindInit = 0;
   DbgInfoAvailable = UsesVAFloatArgument = false; 
   // Always emit some info, by default "no personality" info.
-  Personalities.push_back(NULL);
-  AddrLabelSymbols = 0;
-  TheModule = 0;
+  Personalities.push_back(nullptr);
+  AddrLabelSymbols = nullptr;
+  TheModule = nullptr;
 
   return false;
 }
@@ -289,12 +287,12 @@ bool MachineModuleInfo::doFinalization(Module &M) {
   Personalities.clear();
 
   delete AddrLabelSymbols;
-  AddrLabelSymbols = 0;
+  AddrLabelSymbols = nullptr;
 
   Context.reset();
 
   delete ObjFileMMI;
-  ObjFileMMI = 0;
+  ObjFileMMI = nullptr;
 
   return false;
 }
@@ -313,8 +311,7 @@ void MachineModuleInfo::EndFunction() {
   FilterEnds.clear();
   CallsEHReturn = 0;
   CallsUnwindInit = 0;
-  CompactUnwindEncoding = 0;
-  VariableDbgInfo.clear();
+  VariableDbgInfos.clear();
 }
 
 /// AnalyzeModule - Scan the module for global debug information.
@@ -342,7 +339,7 @@ void MachineModuleInfo::AnalyzeModule(const Module &M) {
 /// because the block may be accessed outside its containing function.
 MCSymbol *MachineModuleInfo::getAddrLabelSymbol(const BasicBlock *BB) {
   // Lazily create AddrLabelSymbols.
-  if (AddrLabelSymbols == 0)
+  if (!AddrLabelSymbols)
     AddrLabelSymbols = new MMIAddrLabelMap(Context);
   return AddrLabelSymbols->getAddrLabelSymbol(const_cast<BasicBlock*>(BB));
 }
@@ -353,7 +350,7 @@ MCSymbol *MachineModuleInfo::getAddrLabelSymbol(const BasicBlock *BB) {
 std::vector<MCSymbol*> MachineModuleInfo::
 getAddrLabelSymbolToEmit(const BasicBlock *BB) {
   // Lazily create AddrLabelSymbols.
-  if (AddrLabelSymbols == 0)
+  if (!AddrLabelSymbols)
     AddrLabelSymbols = new MMIAddrLabelMap(Context);
  return AddrLabelSymbols->getAddrLabelSymbolToEmit(const_cast<BasicBlock*>(BB));
 }
@@ -367,7 +364,7 @@ void MachineModuleInfo::
 takeDeletedSymbolsForFunction(const Function *F,
                               std::vector<MCSymbol*> &Result) {
   // If no blocks have had their addresses taken, we're done.
-  if (AddrLabelSymbols == 0) return;
+  if (!AddrLabelSymbols) return;
   return AddrLabelSymbols->
      takeDeletedSymbolsForFunction(const_cast<Function*>(F), Result);
 }
@@ -420,7 +417,7 @@ void MachineModuleInfo::addPersonality(MachineBasicBlock *LandingPad,
 
   // If this is the first personality we're adding go
   // ahead and add it at the beginning.
-  if (Personalities[0] == NULL)
+  if (!Personalities[0])
     Personalities[0] = Personality;
   else
     Personalities.push_back(Personality);
@@ -463,7 +460,7 @@ void MachineModuleInfo::TidyLandingPads(DenseMap<MCSymbol*, uintptr_t> *LPMap) {
     if (LandingPad.LandingPadLabel &&
         !LandingPad.LandingPadLabel->isDefined() &&
         (!LPMap || (*LPMap)[LandingPad.LandingPadLabel] == 0))
-      LandingPad.LandingPadLabel = 0;
+      LandingPad.LandingPadLabel = nullptr;
 
     // Special case: we *should* emit LPs with null LP MBB. This indicates
     // "nounwind" case.
@@ -551,13 +548,13 @@ try_next:;
 const Function *MachineModuleInfo::getPersonality() const {
   // FIXME: Until PR1414 will be fixed, we're using 1 personality function per
   // function
-  return !LandingPads.empty() ? LandingPads[0].Personality : NULL;
+  return !LandingPads.empty() ? LandingPads[0].Personality : nullptr;
 }
 
 /// getPersonalityIndex - Return unique index for current personality
 /// function. NULL/first personality function should always get zero index.
 unsigned MachineModuleInfo::getPersonalityIndex() const {
-  const Function* Personality = NULL;
+  const Function* Personality = nullptr;
 
   // Scan landing pads. If there is at least one non-NULL personality - use it.
   for (unsigned i = 0, e = LandingPads.size(); i != e; ++i)