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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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36
lib/Analysis/Lint.cpp
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@@ -137,8 +137,8 @@ namespace {
// that failed. This provides a nice place to put a breakpoint if you want
// to see why something is not correct.
void CheckFailed(const Twine &Message,
const Value *V1 = 0, const Value *V2 = 0,
const Value *V3 = 0, const Value *V4 = 0) {
const Value *V1 = nullptr, const Value *V2 = nullptr,
const Value *V3 = nullptr, const Value *V4 = nullptr) {
MessagesStr << Message.str() << "\n";
WriteValue(V1);
WriteValue(V2);
@@ -177,7 +177,7 @@ bool Lint::runOnFunction(Function &F) {
AA = &getAnalysis<AliasAnalysis>();
DT = &getAnalysis<DominatorTreeWrapperPass>().getDomTree();
DataLayoutPass *DLP = getAnalysisIfAvailable<DataLayoutPass>();
DL = DLP ? &DLP->getDataLayout() : 0;
DL = DLP ? &DLP->getDataLayout() : nullptr;
TLI = &getAnalysis<TargetLibraryInfo>();
visit(F);
dbgs() << MessagesStr.str();
@@ -199,7 +199,7 @@ void Lint::visitCallSite(CallSite CS) {
Value *Callee = CS.getCalledValue();
visitMemoryReference(I, Callee, AliasAnalysis::UnknownSize,
0, 0, MemRef::Callee);
0, nullptr, MemRef::Callee);
if (Function *F = dyn_cast<Function>(findValue(Callee, /*OffsetOk=*/false))) {
Assert1(CS.getCallingConv() == F->getCallingConv(),
@@ -275,10 +275,10 @@ void Lint::visitCallSite(CallSite CS) {
MemCpyInst *MCI = cast<MemCpyInst>(&I);
// TODO: If the size is known, use it.
visitMemoryReference(I, MCI->getDest(), AliasAnalysis::UnknownSize,
MCI->getAlignment(), 0,
MCI->getAlignment(), nullptr,
MemRef::Write);
visitMemoryReference(I, MCI->getSource(), AliasAnalysis::UnknownSize,
MCI->getAlignment(), 0,
MCI->getAlignment(), nullptr,
MemRef::Read);
// Check that the memcpy arguments don't overlap. The AliasAnalysis API
@@ -299,10 +299,10 @@ void Lint::visitCallSite(CallSite CS) {
MemMoveInst *MMI = cast<MemMoveInst>(&I);
// TODO: If the size is known, use it.
visitMemoryReference(I, MMI->getDest(), AliasAnalysis::UnknownSize,
MMI->getAlignment(), 0,
MMI->getAlignment(), nullptr,
MemRef::Write);
visitMemoryReference(I, MMI->getSource(), AliasAnalysis::UnknownSize,
MMI->getAlignment(), 0,
MMI->getAlignment(), nullptr,
MemRef::Read);
break;
}
@@ -310,7 +310,7 @@ void Lint::visitCallSite(CallSite CS) {
MemSetInst *MSI = cast<MemSetInst>(&I);
// TODO: If the size is known, use it.
visitMemoryReference(I, MSI->getDest(), AliasAnalysis::UnknownSize,
MSI->getAlignment(), 0,
MSI->getAlignment(), nullptr,
MemRef::Write);
break;
}
@@ -321,17 +321,17 @@ void Lint::visitCallSite(CallSite CS) {
&I);
visitMemoryReference(I, CS.getArgument(0), AliasAnalysis::UnknownSize,
0, 0, MemRef::Read | MemRef::Write);
0, nullptr, MemRef::Read | MemRef::Write);
break;
case Intrinsic::vacopy:
visitMemoryReference(I, CS.getArgument(0), AliasAnalysis::UnknownSize,
0, 0, MemRef::Write);
0, nullptr, MemRef::Write);
visitMemoryReference(I, CS.getArgument(1), AliasAnalysis::UnknownSize,
0, 0, MemRef::Read);
0, nullptr, MemRef::Read);
break;
case Intrinsic::vaend:
visitMemoryReference(I, CS.getArgument(0), AliasAnalysis::UnknownSize,
0, 0, MemRef::Read | MemRef::Write);
0, nullptr, MemRef::Read | MemRef::Write);
break;
case Intrinsic::stackrestore:
@@ -339,7 +339,7 @@ void Lint::visitCallSite(CallSite CS) {
// stack pointer, which the compiler may read from or write to
// at any time, so check it for both readability and writeability.
visitMemoryReference(I, CS.getArgument(0), AliasAnalysis::UnknownSize,
0, 0, MemRef::Read | MemRef::Write);
0, nullptr, MemRef::Read | MemRef::Write);
break;
}
}
@@ -572,13 +572,13 @@ void Lint::visitAllocaInst(AllocaInst &I) {
}
void Lint::visitVAArgInst(VAArgInst &I) {
visitMemoryReference(I, I.getOperand(0), AliasAnalysis::UnknownSize, 0, 0,
MemRef::Read | MemRef::Write);
visitMemoryReference(I, I.getOperand(0), AliasAnalysis::UnknownSize, 0,
nullptr, MemRef::Read | MemRef::Write);
}
void Lint::visitIndirectBrInst(IndirectBrInst &I) {
visitMemoryReference(I, I.getAddress(), AliasAnalysis::UnknownSize, 0, 0,
MemRef::Branchee);
visitMemoryReference(I, I.getAddress(), AliasAnalysis::UnknownSize, 0,
nullptr, MemRef::Branchee);
Assert1(I.getNumDestinations() != 0,
"Undefined behavior: indirectbr with no destinations", &I);