const Value *
llvm::skipPointerTransfer(const Value *V, std::set<const Value *> &processed) {
if (processed.find(V) != processed.end())
- return NULL;
+ return nullptr;
processed.insert(V);
const Value *V2 = V->stripPointerCasts();
if (V2 != V && processed.find(V2) != processed.end())
- return NULL;
+ return nullptr;
processed.insert(V2);
V = V2;
continue;
} else if (const PHINode *PN = dyn_cast<PHINode>(V)) {
if (V != V2 && processed.find(V) != processed.end())
- return NULL;
+ return nullptr;
processed.insert(PN);
- const Value *common = 0;
+ const Value *common = nullptr;
for (unsigned i = 0; i != PN->getNumIncomingValues(); ++i) {
const Value *pv = PN->getIncomingValue(i);
const Value *base = skipPointerTransfer(pv, processed);
if (base) {
- if (common == 0)
+ if (!common)
common = base;
else if (common != base)
return PN;
}
}
- if (common == 0)
+ if (!common)
return PN;
V = common;
}
if (Instruction *I = dyn_cast<Instruction>(v))
return I->getParent();
- return 0;
+ return nullptr;
}
Function *llvm::getParentFunction(Value *v) {
if (BasicBlock *B = dyn_cast<BasicBlock>(v))
return B->getParent();
- return 0;
+ return nullptr;
}
// Dump a block by name
void llvm::dumpBlock(Value *v, char *blockName) {
Function *F = getParentFunction(v);
- if (F == 0)
+ if (!F)
return;
for (Function::iterator it = F->begin(), ie = F->end(); it != ie; ++it) {
// Find an instruction by name
Instruction *llvm::getInst(Value *base, char *instName) {
Function *F = getParentFunction(base);
- if (F == 0)
- return 0;
+ if (!F)
+ return nullptr;
for (inst_iterator it = inst_begin(F), ie = inst_end(F); it != ie; ++it) {
Instruction *I = &*it;
}
}
- return 0;
+ return nullptr;
}
// Dump an instruction by nane