/// such it doesn't follow many of the rules that other alias analyses must.
///
struct VISIBILITY_HIDDEN NoAA : public ImmutablePass, public AliasAnalysis {
+ static char ID; // Class identification, replacement for typeinfo
+ NoAA() : ImmutablePass((intptr_t)&ID) {}
+ explicit NoAA(intptr_t PID) : ImmutablePass(PID) { }
+
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<TargetData>();
}
};
// Register this pass...
+ char NoAA::ID = 0;
RegisterPass<NoAA>
U("no-aa", "No Alias Analysis (always returns 'may' alias)");
/// Because it doesn't chain to a previous alias analysis (like -no-aa), it
/// derives from the NoAA class.
struct VISIBILITY_HIDDEN BasicAliasAnalysis : public NoAA {
+ static char ID; // Class identification, replacement for typeinfo
+ BasicAliasAnalysis() : NoAA((intptr_t)&ID) { }
AliasResult alias(const Value *V1, unsigned V1Size,
const Value *V2, unsigned V2Size);
};
// Register this pass...
+ char BasicAliasAnalysis::ID = 0;
RegisterPass<BasicAliasAnalysis>
X("basicaa", "Basic Alias Analysis (default AA impl)");
if (NumGEP1Ops > MinOperands) {
for (unsigned i = FirstConstantOper; i != MaxOperands; ++i)
if (isa<ConstantInt>(GEP1Ops[i]) &&
- !cast<Constant>(GEP1Ops[i])->isNullValue()) {
+ !cast<ConstantInt>(GEP1Ops[i])->isZero()) {
// Yup, there's a constant in the tail. Set all variables to
// constants in the GEP instruction to make it suiteable for
// TargetData::getIndexedOffset.
if (const ArrayType *AT = dyn_cast<ArrayType>(BasePtr1Ty)) {
if (Op1C->getZExtValue() >= AT->getNumElements())
return MayAlias; // Be conservative with out-of-range accesses
- } else if (const PackedType *PT = dyn_cast<PackedType>(BasePtr1Ty)) {
+ } else if (const VectorType *PT = dyn_cast<VectorType>(BasePtr1Ty)) {
if (Op1C->getZExtValue() >= PT->getNumElements())
return MayAlias; // Be conservative with out-of-range accesses
}
//
if (const ArrayType *AT = dyn_cast<ArrayType>(BasePtr1Ty))
GEP1Ops[i] = ConstantInt::get(Type::Int64Ty,AT->getNumElements()-1);
- else if (const PackedType *PT = dyn_cast<PackedType>(BasePtr1Ty))
+ else if (const VectorType *PT = dyn_cast<VectorType>(BasePtr1Ty))
GEP1Ops[i] = ConstantInt::get(Type::Int64Ty,PT->getNumElements()-1);
}
if (const ArrayType *AT = dyn_cast<ArrayType>(BasePtr1Ty)) {
if (Op2C->getZExtValue() >= AT->getNumElements())
return MayAlias; // Be conservative with out-of-range accesses
- } else if (const PackedType *PT = dyn_cast<PackedType>(BasePtr1Ty)) {
+ } else if (const VectorType *PT = dyn_cast<VectorType>(BasePtr1Ty)) {
if (Op2C->getZExtValue() >= PT->getNumElements())
return MayAlias; // Be conservative with out-of-range accesses
}