return false;
}
+bool Constant::isNotMinSignedValue() const {
+ // Check for INT_MIN integers
+ if (const ConstantInt *CI = dyn_cast<ConstantInt>(this))
+ return !CI->isMinValue(/*isSigned=*/true);
+
+ // Check for FP which are bitcasted from INT_MIN integers
+ if (const ConstantFP *CFP = dyn_cast<ConstantFP>(this))
+ return !CFP->getValueAPF().bitcastToAPInt().isMinSignedValue();
+
+ // Check for constant vectors which are splats of INT_MIN values.
+ if (const ConstantVector *CV = dyn_cast<ConstantVector>(this))
+ if (Constant *Splat = CV->getSplatValue())
+ return Splat->isNotMinSignedValue();
+
+ // Check for constant vectors which are splats of INT_MIN values.
+ if (const ConstantDataVector *CV = dyn_cast<ConstantDataVector>(this))
+ if (Constant *Splat = CV->getSplatValue())
+ return Splat->isNotMinSignedValue();
+
+ // It *may* contain INT_MIN, we can't tell.
+ return false;
+}
+
// Constructor to create a '0' constant of arbitrary type...
Constant *Constant::getNullValue(Type *Ty) {
switch (Ty->getTypeID()) {
// ConstantExpr traps if any operands can trap.
for (unsigned i = 0, e = C->getNumOperands(); i != e; ++i) {
if (ConstantExpr *Op = dyn_cast<ConstantExpr>(CE->getOperand(i))) {
- if (NonTrappingOps.insert(Op) && canTrapImpl(Op, NonTrappingOps))
+ if (NonTrappingOps.insert(Op).second && canTrapImpl(Op, NonTrappingOps))
return true;
}
}
const Constant *ConstOp = dyn_cast<Constant>(Op);
if (!ConstOp)
continue;
- if (Visited.insert(ConstOp))
+ if (Visited.insert(ConstOp).second)
WorkList.push_back(ConstOp);
}
}
// alignof is implemented as: (i64) gep ({i1,Ty}*)null, 0, 1
// Note that a non-inbounds gep is used, as null isn't within any object.
Type *AligningTy =
- StructType::get(Type::getInt1Ty(Ty->getContext()), Ty, NULL);
+ StructType::get(Type::getInt1Ty(Ty->getContext()), Ty, nullptr);
Constant *NullPtr = Constant::getNullValue(AligningTy->getPointerTo(0));
Constant *Zero = ConstantInt::get(Type::getInt64Ty(Ty->getContext()), 0);
Constant *One = ConstantInt::get(Type::getInt32Ty(Ty->getContext()), 1);
return ConstantAggregateZero::get(Ty);
// Do a lookup to see if we have already formed one of these.
- StringMap<ConstantDataSequential*>::MapEntryTy &Slot =
- Ty->getContext().pImpl->CDSConstants.GetOrCreateValue(Elements);
+ auto &Slot =
+ *Ty->getContext()
+ .pImpl->CDSConstants.insert(std::make_pair(Elements, nullptr))
+ .first;
// The bucket can point to a linked list of different CDS's that have the same
// body but different types. For example, 0,0,0,1 could be a 4 element array
// of i8, or a 1-element array of i32. They'll both end up in the same
/// StringMap bucket, linked up by their Next pointers. Walk the list.
- ConstantDataSequential **Entry = &Slot.getValue();
+ ConstantDataSequential **Entry = &Slot.second;
for (ConstantDataSequential *Node = *Entry; Node;
Entry = &Node->Next, Node = *Entry)
if (Node->getType() == Ty)
// Okay, we didn't get a hit. Create a node of the right class, link it in,
// and return it.
if (isa<ArrayType>(Ty))
- return *Entry = new ConstantDataArray(Ty, Slot.getKeyData());
+ return *Entry = new ConstantDataArray(Ty, Slot.first().data());
assert(isa<VectorType>(Ty));
- return *Entry = new ConstantDataVector(Ty, Slot.getKeyData());
+ return *Entry = new ConstantDataVector(Ty, Slot.first().data());
}
void ConstantDataSequential::destroyConstant() {
StringRef Str, bool AddNull) {
if (!AddNull) {
const uint8_t *Data = reinterpret_cast<const uint8_t *>(Str.data());
- return get(Context, ArrayRef<uint8_t>(const_cast<uint8_t *>(Data),
+ return get(Context, makeArrayRef(const_cast<uint8_t *>(Data),
Str.size()));
}
}
/// getSplatValue - If this is a splat constant, meaning that all of the
-/// elements have the same value, return that value. Otherwise return NULL.
+/// elements have the same value, return that value. Otherwise return nullptr.
Constant *ConstantDataVector::getSplatValue() const {
const char *Base = getRawDataValues().data();