[C++] Use 'nullptr'.

llvm-svn: 207394

6 files changed, 14 insertions, 14 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index b67e3e84e6e..331381b0273 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -110,7 +110,7 @@ AsmPrinter::AsmPrinter(TargetMachine &tm, MCStreamer &Streamer)
 }
 
 AsmPrinter::~AsmPrinter() {
-  assert(DD == 0 && Handlers.empty() && "Debug/EH info didn't get finalized");
+  assert(!DD && Handlers.empty() && "Debug/EH info didn't get finalized");
 
   if (GCMetadataPrinters) {
     gcp_map_type &GCMap = getGCMap(GCMetadataPrinters);
diff --git a/llvm/lib/CodeGen/AsmPrinter/DebugLocEntry.h b/llvm/lib/CodeGen/AsmPrinter/DebugLocEntry.h
index 6937b0fa945..3beb799203b 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DebugLocEntry.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DebugLocEntry.h
@@ -94,7 +94,7 @@ private:
   const DwarfCompileUnit *Unit;
 
 public:
-  DebugLocEntry() : Begin(0), End(0), Unit(0) {}
+  DebugLocEntry() : Begin(nullptr), End(nullptr), Unit(nullptr) {}
   DebugLocEntry(const MCSymbol *B, const MCSymbol *E,
                 Value Val, const DwarfCompileUnit *U)
       : Begin(B), End(E), Unit(U) {
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index a588c46718b..948d7fd3807 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -994,8 +994,8 @@ void DwarfDebug::endSections() {
 
 // Emit all Dwarf sections that should come after the content.
 void DwarfDebug::endModule() {
-  assert(CurFn == 0);
-  assert(CurMI == 0);
+  assert(CurFn == nullptr);
+  assert(CurMI == nullptr);
 
   if (!FirstCU)
     return;
@@ -1279,7 +1279,7 @@ MCSymbol *DwarfDebug::getLabelAfterInsn(const MachineInstr *MI) {
 
 // Process beginning of an instruction.
 void DwarfDebug::beginInstruction(const MachineInstr *MI) {
-  assert(CurMI == 0);
+  assert(CurMI == nullptr);
   CurMI = MI;
   // Check if source location changes, but ignore DBG_VALUE locations.
   if (!MI->isDebugValue()) {
@@ -1323,7 +1323,7 @@ void DwarfDebug::beginInstruction(const MachineInstr *MI) {
 
 // Process end of an instruction.
 void DwarfDebug::endInstruction() {
-  assert(CurMI != 0);
+  assert(CurMI != nullptr);
   // Don't create a new label after DBG_VALUE instructions.
   // They don't generate code.
   if (!CurMI->isDebugValue())
@@ -1608,7 +1608,7 @@ void DwarfDebug::endFunction(const MachineFunction *MF) {
     CurFn = MF;
   else
     assert(CurFn == MF);
-  assert(CurFn != 0);
+  assert(CurFn != nullptr);
 
   if (!MMI->hasDebugInfo() || LScopes.empty()) {
     // If we don't have a lexical scope for this function then there will
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
index a5bbb251229..1c4903c948d 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -78,8 +78,8 @@ class DbgVariable {
 public:
   // AbsVar may be NULL.
   DbgVariable(DIVariable V, DbgVariable *AV, DwarfDebug *DD)
-      : Var(V), TheDIE(0), DotDebugLocOffset(~0U), AbsVar(AV), MInsn(0),
-        FrameIndex(~0), DD(DD) {}
+      : Var(V), TheDIE(nullptr), DotDebugLocOffset(~0U), AbsVar(AV),
+        MInsn(nullptr), FrameIndex(~0), DD(DD) {}
 
   // Accessors.
   DIVariable getVariable() const { return Var; }
@@ -523,7 +523,7 @@ class DwarfDebug : public AsmPrinterHandler {
 
   /// \brief Ensure that a label will be emitted before MI.
   void requestLabelBeforeInsn(const MachineInstr *MI) {
-    LabelsBeforeInsn.insert(std::make_pair(MI, (MCSymbol *)0));
+    LabelsBeforeInsn.insert(std::make_pair(MI, nullptr));
   }
 
   /// \brief Return Label preceding the instruction.
@@ -531,7 +531,7 @@ class DwarfDebug : public AsmPrinterHandler {
 
   /// \brief Ensure that a label will be emitted after MI.
   void requestLabelAfterInsn(const MachineInstr *MI) {
-    LabelsAfterInsn.insert(std::make_pair(MI, (MCSymbol *)0));
+    LabelsAfterInsn.insert(std::make_pair(MI, nullptr));
   }
 
   /// \brief Return Label immediately following the instruction.
diff --git a/llvm/lib/CodeGen/AsmPrinter/WinCodeViewLineTables.cpp b/llvm/lib/CodeGen/AsmPrinter/WinCodeViewLineTables.cpp
index abf0c4b12c9..1dbfb9b5992 100644
--- a/llvm/lib/CodeGen/AsmPrinter/WinCodeViewLineTables.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/WinCodeViewLineTables.cpp
@@ -216,7 +216,7 @@ void WinCodeViewLineTables::endModule() {
   if (FnDebugInfo.empty())
     return;
 
-  assert(Asm != 0);
+  assert(Asm != nullptr);
   Asm->OutStreamer.SwitchSection(
       Asm->getObjFileLowering().getCOFFDebugSymbolsSection());
   Asm->EmitInt32(COFF::DEBUG_SECTION_MAGIC);
diff --git a/llvm/lib/CodeGen/AsmPrinter/WinCodeViewLineTables.h b/llvm/lib/CodeGen/AsmPrinter/WinCodeViewLineTables.h
index a7a62053c3e..0734d97ba71 100644
--- a/llvm/lib/CodeGen/AsmPrinter/WinCodeViewLineTables.h
+++ b/llvm/lib/CodeGen/AsmPrinter/WinCodeViewLineTables.h
@@ -38,7 +38,7 @@ class WinCodeViewLineTables : public AsmPrinterHandler {
   struct FunctionInfo {
     SmallVector<MCSymbol *, 10> Instrs;
     MCSymbol *End;
-    FunctionInfo() : End(0) {}
+    FunctionInfo() : End(nullptr) {}
   } *CurFn;
 
   typedef DenseMap<const Function *, FunctionInfo> FnDebugInfoTy;
@@ -104,7 +104,7 @@ class WinCodeViewLineTables : public AsmPrinterHandler {
   void maybeRecordLocation(DebugLoc DL, const MachineFunction *MF);
 
   void clear() {
-    assert(CurFn == 0);
+    assert(CurFn == nullptr);
     FileNameRegistry.clear();
     InstrInfo.clear();
   }