commit 8a13c4180e1a50fd4458ad522e2c271ce8ceb3d6
author Craig Topper <craig.topper@gmail.com> Wed May 21 05:09:00 2014 +0000
committer Craig Topper <craig.topper@gmail.com> Wed May 21 05:09:00 2014 +0000
tree be98b83ca922b4a9f79937f9166969913f2edcb8
parent 5c35c8c9abc2a830c912c70d51c72197917470c7

[C++11] Use 'nullptr'. CodeGen edition.

llvm-svn: 209272

clang/lib/CodeGen/CodeGenTBAA.cpp

diff --git a/clang/lib/CodeGen/CodeGenTBAA.cpp b/clang/lib/CodeGen/CodeGenTBAA.cpp
index 699cc2e..53ba02a 100644
--- a/clang/lib/CodeGen/CodeGenTBAA.cpp
+++ b/clang/lib/CodeGen/CodeGenTBAA.cpp
@@ -33,7 +33,7 @@
                          const CodeGenOptions &CGO,
                          const LangOptions &Features, MangleContext &MContext)
   : Context(Ctx), CodeGenOpts(CGO), Features(Features), MContext(MContext),
-    MDHelper(VMContext), Root(0), Char(0) {
+    MDHelper(VMContext), Root(nullptr), Char(nullptr) {
 }
 
 CodeGenTBAA::~CodeGenTBAA() {
@@ -88,7 +88,7 @@
 CodeGenTBAA::getTBAAInfo(QualType QTy) {
   // At -O0 or relaxed aliasing, TBAA is not emitted for regular types.
   if (CodeGenOpts.OptimizationLevel == 0 || CodeGenOpts.RelaxedAliasing)
-    return NULL;
+    return nullptr;
 
   // If the type has the may_alias attribute (even on a typedef), it is
   // effectively in the general char alias class.
@@ -221,7 +221,7 @@
     return MDHelper.createTBAAStructNode(Fields);
 
   // For now, handle any other kind of type conservatively.
-  return StructMetadataCache[Ty] = NULL;
+  return StructMetadataCache[Ty] = nullptr;
 }
 
 /// Check if the given type can be handled by path-aware TBAA.
@@ -261,7 +261,7 @@
       else
         FieldNode = getTBAAInfo(FieldQTy);
       if (!FieldNode)
-        return StructTypeMetadataCache[Ty] = NULL;
+        return StructTypeMetadataCache[Ty] = nullptr;
       Fields.push_back(std::make_pair(
           FieldNode, Layout.getFieldOffset(idx) / Context.getCharWidth()));
     }
@@ -280,7 +280,7 @@
       MDHelper.createTBAAStructTypeNode(OutName, Fields);
   }
 
-  return StructMetadataCache[Ty] = NULL;
+  return StructMetadataCache[Ty] = nullptr;
 }
 
 /// Return a TBAA tag node for both scalar TBAA and struct-path aware TBAA.
@@ -288,7 +288,7 @@
 CodeGenTBAA::getTBAAStructTagInfo(QualType BaseQTy, llvm::MDNode *AccessNode,
                                   uint64_t Offset) {
   if (!AccessNode)
-    return NULL;
+    return nullptr;
 
   if (!CodeGenOpts.StructPathTBAA)
     return getTBAAScalarTagInfo(AccessNode);
@@ -298,7 +298,7 @@
   if (llvm::MDNode *N = StructTagMetadataCache[PathTag])
     return N;
 
-  llvm::MDNode *BNode = 0;
+  llvm::MDNode *BNode = nullptr;
   if (isTBAAPathStruct(BaseQTy))
     BNode  = getTBAAStructTypeInfo(BaseQTy);
   if (!BNode)
@@ -312,7 +312,7 @@
 llvm::MDNode *
 CodeGenTBAA::getTBAAScalarTagInfo(llvm::MDNode *AccessNode) {
   if (!AccessNode)
-    return NULL;
+    return nullptr;
   if (llvm::MDNode *N = ScalarTagMetadataCache[AccessNode])
     return N;