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

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206243 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper
2014-04-15 04:59:12 +00:00
parent a8ae0ad11f
commit 570e52c6f1
59 changed files with 574 additions and 563 deletions
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22
lib/Analysis/TypeBasedAliasAnalysis.cpp
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@ -144,7 +144,7 @@ namespace {
const MDNode *Node;
public:
TBAANode() : Node(0) {}
TBAANode() : Node(nullptr) {}
explicit TBAANode(const MDNode *N) : Node(N) {}
/// getNode - Get the MDNode for this TBAANode.
@ -182,7 +182,7 @@ namespace {
const MDNode *Node;
public:
TBAAStructTagNode() : Node(0) {}
TBAAStructTagNode() : Node(nullptr) {}
explicit TBAAStructTagNode(const MDNode *N) : Node(N) {}
/// Get the MDNode for this TBAAStructTagNode.
@ -218,7 +218,7 @@ namespace {
const MDNode *Node;
public:
TBAAStructTypeNode() : Node(0) {}
TBAAStructTypeNode() : Node(nullptr) {}
explicit TBAAStructTypeNode(const MDNode *N) : Node(N) {}
/// Get the MDNode for this TBAAStructTypeNode.
@ -555,7 +555,7 @@ bool MDNode::isTBAAVtableAccess() const {
MDNode *MDNode::getMostGenericTBAA(MDNode *A, MDNode *B) {
if (!A || !B)
return NULL;
return nullptr;
if (A == B)
return A;
@ -564,29 +564,31 @@ MDNode *MDNode::getMostGenericTBAA(MDNode *A, MDNode *B) {
bool StructPath = isStructPathTBAA(A);
if (StructPath) {
A = cast_or_null<MDNode>(A->getOperand(1));
if (!A) return 0;
if (!A) return nullptr;
B = cast_or_null<MDNode>(B->getOperand(1));
if (!B) return 0;
if (!B) return nullptr;
}
SmallVector<MDNode *, 4> PathA;
MDNode *T = A;
while (T) {
PathA.push_back(T);
T = T->getNumOperands() >= 2 ? cast_or_null<MDNode>(T->getOperand(1)) : 0;
T = T->getNumOperands() >= 2 ? cast_or_null<MDNode>(T->getOperand(1))
: nullptr;
}
SmallVector<MDNode *, 4> PathB;
T = B;
while (T) {
PathB.push_back(T);
T = T->getNumOperands() >= 2 ? cast_or_null<MDNode>(T->getOperand(1)) : 0;
T = T->getNumOperands() >= 2 ? cast_or_null<MDNode>(T->getOperand(1))
: nullptr;
}
int IA = PathA.size() - 1;
int IB = PathB.size() - 1;
MDNode *Ret = 0;
MDNode *Ret = nullptr;
while (IA >= 0 && IB >=0) {
if (PathA[IA] == PathB[IB])
Ret = PathA[IA];
@ -599,7 +601,7 @@ MDNode *MDNode::getMostGenericTBAA(MDNode *A, MDNode *B) {
return Ret;
if (!Ret)
return 0;
return nullptr;
// We need to convert from a type node to a tag node.
Type *Int64 = IntegerType::get(A->getContext(), 64);
Value *Ops[3] = { Ret, Ret, ConstantInt::get(Int64, 0) };