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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@206142 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper
2014-04-14 00:51:57 +00:00
parent b9ed50cf17
commit 4ba844388c
169 changed files with 1547 additions and 1489 deletions
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14
lib/CodeGen/StackProtector.cpp
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@ -83,7 +83,7 @@ bool StackProtector::runOnFunction(Function &Fn) {
M = F->getParent();
DominatorTreeWrapperPass *DTWP =
getAnalysisIfAvailable<DominatorTreeWrapperPass>();
DT = DTWP ? &DTWP->getDomTree() : 0;
DT = DTWP ? &DTWP->getDomTree() : nullptr;
TLI = TM->getTargetLowering();
if (!RequiresStackProtector())
@ -319,7 +319,7 @@ static CallInst *FindPotentialTailCall(BasicBlock *BB, ReturnInst *RI,
SearchCounter++;
}
return 0;
return nullptr;
}
/// Insert code into the entry block that stores the __stack_chk_guard
@ -354,7 +354,7 @@ static bool CreatePrologue(Function *F, Module *M, ReturnInst *RI,
}
IRBuilder<> B(&F->getEntryBlock().front());
AI = B.CreateAlloca(PtrTy, 0, "StackGuardSlot");
AI = B.CreateAlloca(PtrTy, nullptr, "StackGuardSlot");
LoadInst *LI = B.CreateLoad(StackGuardVar, "StackGuard");
B.CreateCall2(Intrinsic::getDeclaration(M, Intrinsic::stackprotector), LI,
AI);
@ -372,8 +372,8 @@ bool StackProtector::InsertStackProtectors() {
bool HasPrologue = false;
bool SupportsSelectionDAGSP =
EnableSelectionDAGSP && !TM->Options.EnableFastISel;
AllocaInst *AI = 0; // Place on stack that stores the stack guard.
Value *StackGuardVar = 0; // The stack guard variable.
AllocaInst *AI = nullptr; // Place on stack that stores the stack guard.
Value *StackGuardVar = nullptr; // The stack guard variable.
for (Function::iterator I = F->begin(), E = F->end(); I != E;) {
BasicBlock *BB = I++;
@ -390,14 +390,14 @@ bool StackProtector::InsertStackProtectors() {
if (SupportsSelectionDAGSP) {
// Since we have a potential tail call, insert the special stack check
// intrinsic.
Instruction *InsertionPt = 0;
Instruction *InsertionPt = nullptr;
if (CallInst *CI = FindPotentialTailCall(BB, RI, TLI)) {
InsertionPt = CI;
} else {
InsertionPt = RI;
// At this point we know that BB has a return statement so it *DOES*
// have a terminator.
assert(InsertionPt != 0 && "BB must have a terminator instruction at "
assert(InsertionPt != nullptr && "BB must have a terminator instruction at "
"this point.");
}