//===----------------------------------------------------------------------===//
-// MetadataContextImpl implementation.
+// MetadataContext implementation.
//
-namespace llvm {
-class MetadataContextImpl {
-public:
- typedef std::pair<unsigned, TrackingVH<MDNode> > MDPairTy;
- typedef SmallVector<MDPairTy, 2> MDMapTy;
- typedef DenseMap<const Instruction *, MDMapTy> MDStoreTy;
- friend class BitcodeReader;
-private:
-
- /// MetadataStore - Collection of metadata used in this context.
- MDStoreTy MetadataStore;
- /// MDHandlerNames - Map to hold metadata handler names.
- StringMap<unsigned> MDHandlerNames;
-
-public:
- // Name <-> ID mapping methods.
- unsigned getMDKindID(StringRef Name);
- void getMDKindNames(SmallVectorImpl<StringRef> &) const;
-
-
- // Instruction metadata methods.
- MDNode *getMetadata(const Instruction *Inst, unsigned Kind);
- void getAllMetadata(const Instruction *Inst,
- SmallVectorImpl<std::pair<unsigned, MDNode*> > &MDs)const;
+#ifndef NDEBUG
+/// isValidName - Return true if Name is a valid custom metadata handler name.
+static bool isValidName(StringRef MDName) {
+ if (MDName.empty())
+ return false;
- void setMetadata(Instruction *Inst, unsigned Kind, MDNode *Node);
+ if (!isalpha(MDName[0]))
+ return false;
- /// removeAllMetadata - Remove all metadata attached to an instruction.
- void removeAllMetadata(Instruction *Inst);
-};
+ for (StringRef::iterator I = MDName.begin() + 1, E = MDName.end(); I != E;
+ ++I) {
+ if (!isalnum(*I) && *I != '_' && *I != '-' && *I != '.')
+ return false;
+ }
+ return true;
}
+#endif
/// getMDKindID - Return a unique non-zero ID for the specified metadata kind.
-unsigned MetadataContextImpl::getMDKindID(StringRef Name) {
- unsigned &Entry = MDHandlerNames[Name];
-
+unsigned LLVMContext::getMDKindID(StringRef Name) const {
+ assert(isValidName(Name) && "Invalid MDNode name");
+
+ unsigned &Entry = pImpl->CustomMDKindNames[Name];
+
// If this is new, assign it its ID.
- if (Entry == 0) Entry = MDHandlerNames.size();
+ if (Entry == 0) Entry = pImpl->CustomMDKindNames.size();
return Entry;
}
/// getHandlerNames - Populate client supplied smallvector using custome
/// metadata name and ID.
-void MetadataContextImpl::
-getMDKindNames(SmallVectorImpl<StringRef> &Names) const {
- Names.resize(MDHandlerNames.size()+1);
+void LLVMContext::getMDKindNames(SmallVectorImpl<StringRef> &Names) const {
+ Names.resize(pImpl->CustomMDKindNames.size()+1);
Names[0] = "";
- for (StringMap<unsigned>::const_iterator I = MDHandlerNames.begin(),
- E = MDHandlerNames.end(); I != E; ++I)
+ for (StringMap<unsigned>::const_iterator I = pImpl->CustomMDKindNames.begin(),
+ E = pImpl->CustomMDKindNames.end(); I != E; ++I)
// MD Handlers are numbered from 1.
Names[I->second] = I->first();
}
+//===----------------------------------------------------------------------===//
+// Instruction Metadata method implementations.
+//
-/// getMetadata - Get the metadata of given kind attached to an Instruction.
-/// If the metadata is not found then return 0.
-MDNode *MetadataContextImpl::
-getMetadata(const Instruction *Inst, unsigned MDKind) {
- MDMapTy &Info = MetadataStore[Inst];
- assert(Inst->hasMetadata() && !Info.empty() && "Shouldn't have called this");
-
- for (MDMapTy::iterator I = Info.begin(), E = Info.end(); I != E; ++I)
- if (I->first == MDKind)
- return I->second;
- return 0;
+void Instruction::setMetadata(const char *Kind, MDNode *Node) {
+ if (Node == 0 && !hasMetadata()) return;
+ setMetadata(getContext().getMDKindID(Kind), Node);
}
-/// getAllMetadata - Get all of the metadata attached to an Instruction.
-void MetadataContextImpl::
-getAllMetadata(const Instruction *Inst,
- SmallVectorImpl<std::pair<unsigned, MDNode*> > &Result) const {
- assert(Inst->hasMetadata() && MetadataStore.find(Inst) != MetadataStore.end()
- && "Shouldn't have called this");
- const MDMapTy &Info = MetadataStore.find(Inst)->second;
- assert(!Info.empty() && "Shouldn't have called this");
-
- Result.clear();
- Result.append(Info.begin(), Info.end());
-
- // Sort the resulting array so it is stable.
- if (Result.size() > 1)
- array_pod_sort(Result.begin(), Result.end());
+MDNode *Instruction::getMetadataImpl(const char *Kind) const {
+ return getMetadataImpl(getContext().getMDKindID(Kind));
}
-
-void MetadataContextImpl::setMetadata(Instruction *Inst, unsigned Kind,
- MDNode *Node) {
+/// setMetadata - Set the metadata of of the specified kind to the specified
+/// node. This updates/replaces metadata if already present, or removes it if
+/// Node is null.
+void Instruction::setMetadata(unsigned KindID, MDNode *Node) {
+ if (Node == 0 && !hasMetadata()) return;
+
// Handle the case when we're adding/updating metadata on an instruction.
if (Node) {
- MDMapTy &Info = MetadataStore[Inst];
- assert(!Info.empty() == Inst->hasMetadata() && "HasMetadata bit is wonked");
+ LLVMContextImpl::MDMapTy &Info = getContext().pImpl->MetadataStore[this];
+ assert(!Info.empty() == hasMetadata() && "HasMetadata bit is wonked");
if (Info.empty()) {
- Inst->setHasMetadata(true);
+ setHasMetadata(true);
} else {
// Handle replacement of an existing value.
for (unsigned i = 0, e = Info.size(); i != e; ++i)
- if (Info[i].first == Kind) {
+ if (Info[i].first == KindID) {
Info[i].second = Node;
return;
}
}
// No replacement, just add it to the list.
- Info.push_back(std::make_pair(Kind, Node));
+ Info.push_back(std::make_pair(KindID, Node));
return;
}
// Otherwise, we're removing metadata from an instruction.
- assert(Inst->hasMetadata() && MetadataStore.count(Inst) &&
+ assert(hasMetadata() && getContext().pImpl->MetadataStore.count(this) &&
"HasMetadata bit out of date!");
- MDMapTy &Info = MetadataStore[Inst];
-
+ LLVMContextImpl::MDMapTy &Info = getContext().pImpl->MetadataStore[this];
+
// Common case is removing the only entry.
- if (Info.size() == 1 && Info[0].first == Kind) {
- MetadataStore.erase(Inst);
- Inst->setHasMetadata(false);
+ if (Info.size() == 1 && Info[0].first == KindID) {
+ getContext().pImpl->MetadataStore.erase(this);
+ setHasMetadata(false);
return;
}
// Handle replacement of an existing value.
for (unsigned i = 0, e = Info.size(); i != e; ++i)
- if (Info[i].first == Kind) {
+ if (Info[i].first == KindID) {
Info[i] = Info.back();
Info.pop_back();
assert(!Info.empty() && "Removing last entry should be handled above");
// Otherwise, removing an entry that doesn't exist on the instruction.
}
-/// removeAllMetadata - Remove all metadata attached with an instruction.
-void MetadataContextImpl::removeAllMetadata(Instruction *Inst) {
- MetadataStore.erase(Inst);
- Inst->setHasMetadata(false);
-}
-
-
-//===----------------------------------------------------------------------===//
-// MetadataContext implementation.
-//
-MetadataContext::MetadataContext() : pImpl(new MetadataContextImpl()) { }
-MetadataContext::~MetadataContext() { delete pImpl; }
-
-#ifndef NDEBUG
-/// isValidName - Return true if Name is a valid custom metadata handler name.
-static bool isValidName(StringRef MDName) {
- if (MDName.empty())
- return false;
-
- if (!isalpha(MDName[0]))
- return false;
-
- for (StringRef::iterator I = MDName.begin() + 1, E = MDName.end(); I != E;
- ++I) {
- if (!isalnum(*I) && *I != '_' && *I != '-' && *I != '.')
- return false;
- }
- return true;
-}
-#endif
-
-/// getMDKindID - Return a unique non-zero ID for the specified metadata kind.
-unsigned MetadataContext::getMDKindID(StringRef Name) const {
- assert(isValidName(Name) && "Invalid MDNode name");
- return pImpl->getMDKindID(Name);
-}
-
-/// getHandlerNames - Populate client supplied smallvector using custome
-/// metadata name and ID.
-void MetadataContext::getMDKindNames(SmallVectorImpl<StringRef> &N) const {
- pImpl->getMDKindNames(N);
-}
-
-//===----------------------------------------------------------------------===//
-// Instruction Metadata method implementations.
-//
-
-void Instruction::setMetadata(const char *Kind, MDNode *Node) {
- if (Node == 0 && !hasMetadata()) return;
- setMetadata(getContext().getMetadata().getMDKindID(Kind), Node);
-}
-
-MDNode *Instruction::getMetadataImpl(const char *Kind) const {
- return getMetadataImpl(getContext().getMetadata().getMDKindID(Kind));
-}
-
-/// setMetadata - Set the metadata of of the specified kind to the specified
-/// node. This updates/replaces metadata if already present, or removes it if
-/// Node is null.
-void Instruction::setMetadata(unsigned KindID, MDNode *Node) {
- if (Node == 0 && !hasMetadata()) return;
-
- getContext().getMetadata().pImpl->setMetadata(this, KindID, Node);
-}
-
MDNode *Instruction::getMetadataImpl(unsigned KindID) const {
- return getContext().getMetadata().pImpl->getMetadata(this, KindID);
+ LLVMContextImpl::MDMapTy &Info = getContext().pImpl->MetadataStore[this];
+ assert(hasMetadata() && !Info.empty() && "Shouldn't have called this");
+
+ for (LLVMContextImpl::MDMapTy::iterator I = Info.begin(), E = Info.end();
+ I != E; ++I)
+ if (I->first == KindID)
+ return I->second;
+ return 0;
}
void Instruction::getAllMetadataImpl(SmallVectorImpl<std::pair<unsigned,
MDNode*> > &Result)const {
- getContext().getMetadata().pImpl->getAllMetadata(this, Result);
+ assert(hasMetadata() && getContext().pImpl->MetadataStore.count(this) &&
+ "Shouldn't have called this");
+ const LLVMContextImpl::MDMapTy &Info =
+ getContext().pImpl->MetadataStore.find(this)->second;
+ assert(!Info.empty() && "Shouldn't have called this");
+
+ Result.clear();
+ Result.append(Info.begin(), Info.end());
+
+ // Sort the resulting array so it is stable.
+ if (Result.size() > 1)
+ array_pod_sort(Result.begin(), Result.end());
}
/// removeAllMetadata - Remove all metadata from this instruction.
void Instruction::removeAllMetadata() {
assert(hasMetadata() && "Caller should check");
- getContext().getMetadata().pImpl->removeAllMetadata(this);
+ getContext().pImpl->MetadataStore.erase(this);
+ setHasMetadata(false);
}