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Derive NamedMDNode from Value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93032 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -31,7 +31,7 @@ template<typename ValueSubClass, typename ItemParentClass>
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//===----------------------------------------------------------------------===//
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// MetadataBase - A base class for MDNode, MDString and NamedMDNode.
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// MetadataBase - A base class for MDNode and MDString.
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class MetadataBase : public Value {
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protected:
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MetadataBase(const Type *Ty, unsigned scid)
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@ -42,8 +42,7 @@ public:
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/// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const MetadataBase *) { return true; }
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static bool classof(const Value *V) {
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return V->getValueID() == MDStringVal || V->getValueID() == MDNodeVal
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|| V->getValueID() == NamedMDNodeVal;
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return V->getValueID() == MDStringVal || V->getValueID() == MDNodeVal;
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}
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};
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@ -169,7 +168,7 @@ private:
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//===----------------------------------------------------------------------===//
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/// NamedMDNode - a tuple of MDNodes.
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/// NamedMDNode is always named. All NamedMDNode operand has a type of metadata.
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class NamedMDNode : public MetadataBase, public ilist_node<NamedMDNode> {
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class NamedMDNode : public Value, public ilist_node<NamedMDNode> {
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friend class SymbolTableListTraits<NamedMDNode, Module>;
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friend class LLVMContextImpl;
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@ -135,7 +135,7 @@ void ValueEnumerator::setInstructionID(const Instruction *I) {
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}
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unsigned ValueEnumerator::getValueID(const Value *V) const {
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if (isa<MetadataBase>(V)) {
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if (isa<MetadataBase>(V) || isa<NamedMDNode>(V)) {
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ValueMapType::const_iterator I = MDValueMap.find(V);
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assert(I != MDValueMap.end() && "Value not in slotcalculator!");
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return I->second-1;
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@ -205,6 +205,25 @@ void ValueEnumerator::EnumerateMDSymbolTable(const MDSymbolTable &MST) {
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EnumerateValue(MI->getValue());
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}
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void ValueEnumerator::EnumerateNamedMDNode(const NamedMDNode *MD) {
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// Check to see if it's already in!
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unsigned &MDValueID = MDValueMap[MD];
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if (MDValueID) {
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// Increment use count.
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MDValues[MDValueID-1].second++;
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return;
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}
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// Enumerate the type of this value.
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EnumerateType(MD->getType());
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for (unsigned i = 0, e = MD->getNumOperands(); i != e; ++i)
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if (MDNode *E = MD->getOperand(i))
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EnumerateValue(E);
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MDValues.push_back(std::make_pair(MD, 1U));
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MDValueMap[MD] = Values.size();
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}
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void ValueEnumerator::EnumerateMetadata(const MetadataBase *MD) {
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// Check to see if it's already in!
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unsigned &MDValueID = MDValueMap[MD];
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@ -230,15 +249,6 @@ void ValueEnumerator::EnumerateMetadata(const MetadataBase *MD) {
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return;
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}
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if (const NamedMDNode *N = dyn_cast<NamedMDNode>(MD)) {
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for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
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if (MDNode *E = N->getOperand(i))
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EnumerateValue(E);
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MDValues.push_back(std::make_pair(MD, 1U));
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MDValueMap[MD] = Values.size();
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return;
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}
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// Add the value.
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assert(isa<MDString>(MD) && "Unknown metadata kind");
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MDValues.push_back(std::make_pair(MD, 1U));
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@ -249,6 +259,8 @@ void ValueEnumerator::EnumerateValue(const Value *V) {
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assert(!V->getType()->isVoidTy() && "Can't insert void values!");
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if (const MetadataBase *MB = dyn_cast<MetadataBase>(V))
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return EnumerateMetadata(MB);
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else if (const NamedMDNode *NMD = dyn_cast<NamedMDNode>(V))
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return EnumerateNamedMDNode(NMD);
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// Check to see if it's already in!
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unsigned &ValueID = ValueMap[V];
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@ -27,6 +27,7 @@ class BasicBlock;
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class Function;
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class Module;
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class MetadataBase;
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class NamedMDNode;
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class AttrListPtr;
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class TypeSymbolTable;
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class ValueSymbolTable;
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@ -127,6 +128,7 @@ private:
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void OptimizeConstants(unsigned CstStart, unsigned CstEnd);
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void EnumerateMetadata(const MetadataBase *MD);
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void EnumerateNamedMDNode(const NamedMDNode *NMD);
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void EnumerateValue(const Value *V);
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void EnumerateType(const Type *T);
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void EnumerateOperandType(const Value *V);
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@ -217,7 +217,7 @@ static SmallVector<WeakVH, 4> &getNMDOps(void *Operands) {
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NamedMDNode::NamedMDNode(LLVMContext &C, StringRef N,
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MDNode *const *MDs,
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unsigned NumMDs, Module *ParentModule)
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: MetadataBase(Type::getMetadataTy(C), Value::NamedMDNodeVal), Parent(0) {
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: Value(Type::getMetadataTy(C), Value::NamedMDNodeVal), Parent(0) {
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setName(N);
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Operands = new SmallVector<WeakVH, 4>();
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