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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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25
include/llvm/Analysis/AliasSetTracker.h
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@@ -43,13 +43,13 @@ class AliasSet : public ilist_node<AliasSet> {
const MDNode *TBAAInfo;
public:
PointerRec(Value *V)
: Val(V), PrevInList(0), NextInList(0), AS(0), Size(0),
: Val(V), PrevInList(nullptr), NextInList(nullptr), AS(nullptr), Size(0),
TBAAInfo(DenseMapInfo<const MDNode *>::getEmptyKey()) {}
Value *getValue() const { return Val; }
PointerRec *getNext() const { return NextInList; }
bool hasAliasSet() const { return AS != 0; }
bool hasAliasSet() const { return AS != nullptr; }
PointerRec** setPrevInList(PointerRec **PIL) {
PrevInList = PIL;
@@ -75,7 +75,7 @@ class AliasSet : public ilist_node<AliasSet> {
// If we have missing or conflicting TBAAInfo, return null.
if (TBAAInfo == DenseMapInfo<const MDNode *>::getEmptyKey() ||
TBAAInfo == DenseMapInfo<const MDNode *>::getTombstoneKey())
return 0;
return nullptr;
return TBAAInfo;
}
@@ -91,7 +91,7 @@ class AliasSet : public ilist_node<AliasSet> {
}
void setAliasSet(AliasSet *as) {
assert(AS == 0 && "Already have an alias set!");
assert(!AS && "Already have an alias set!");
AS = as;
}
@@ -100,7 +100,7 @@ class AliasSet : public ilist_node<AliasSet> {
*PrevInList = NextInList;
if (AS->PtrListEnd == &NextInList) {
AS->PtrListEnd = PrevInList;
assert(*AS->PtrListEnd == 0 && "List not terminated right!");
assert(*AS->PtrListEnd == nullptr && "List not terminated right!");
}
delete this;
}
@@ -174,7 +174,7 @@ public:
class iterator;
iterator begin() const { return iterator(PtrList); }
iterator end() const { return iterator(); }
bool empty() const { return PtrList == 0; }
bool empty() const { return PtrList == nullptr; }
void print(raw_ostream &OS) const;
void dump() const;
@@ -184,7 +184,7 @@ public:
PointerRec, ptrdiff_t> {
PointerRec *CurNode;
public:
explicit iterator(PointerRec *CN = 0) : CurNode(CN) {}
explicit iterator(PointerRec *CN = nullptr) : CurNode(CN) {}
bool operator==(const iterator& x) const {
return CurNode == x.CurNode;
@@ -220,8 +220,9 @@ private:
// Can only be created by AliasSetTracker. Also, ilist creates one
// to serve as a sentinel.
friend struct ilist_sentinel_traits<AliasSet>;
AliasSet() : PtrList(0), PtrListEnd(&PtrList), Forward(0), RefCount(0),
AccessTy(NoModRef), AliasTy(MustAlias), Volatile(false) {
AliasSet()
: PtrList(nullptr), PtrListEnd(&PtrList), Forward(nullptr), RefCount(0),
AccessTy(NoModRef), AliasTy(MustAlias), Volatile(false) {
}
AliasSet(const AliasSet &AS) LLVM_DELETED_FUNCTION;
@@ -285,7 +286,7 @@ class AliasSetTracker {
void deleted() override;
void allUsesReplacedWith(Value *) override;
public:
ASTCallbackVH(Value *V, AliasSetTracker *AST = 0);
ASTCallbackVH(Value *V, AliasSetTracker *AST = nullptr);
ASTCallbackVH &operator=(Value *V);
};
/// ASTCallbackVHDenseMapInfo - Traits to tell DenseMap that tell us how to
@@ -354,7 +355,7 @@ public:
/// pointer didn't alias anything).
AliasSet &getAliasSetForPointer(Value *P, uint64_t Size,
const MDNode *TBAAInfo,
bool *New = 0);
bool *New = nullptr);
/// getAliasSetForPointerIfExists - Return the alias set containing the
/// location specified if one exists, otherwise return null.
@@ -408,7 +409,7 @@ private:
// entry for the pointer if it doesn't already exist.
AliasSet::PointerRec &getEntryFor(Value *V) {
AliasSet::PointerRec *&Entry = PointerMap[ASTCallbackVH(V, this)];
if (Entry == 0)
if (!Entry)
Entry = new AliasSet::PointerRec(V);
return *Entry;
}