/// that this node really is. When nodes get folded together, the node to be
/// eliminated has these fields filled in, otherwise ForwardNH.getNode() is
/// null.
+ ///
DSNodeHandle ForwardNH;
/// Next, Prev - These instance variables are used to keep the node on a
/// doubly-linked ilist in the DSGraph.
+ ///
DSNode *Next, *Prev;
friend class ilist_traits<DSNode>;
/// DSNode ctor - Create a node of the specified type, inserting it into the
/// specified graph.
+ ///
DSNode(const Type *T, DSGraph *G);
/// DSNode "copy ctor" - Copy the specified node, inserting it into the
/// specified graph. If NullLinks is true, then null out all of the links,
/// but keep the same number of them. This can be used for efficiency if the
/// links are just going to be clobbered anyway.
+ ///
DSNode(const DSNode &, DSGraph *G, bool NullLinks = false);
~DSNode() {
///
unsigned getSize() const { return Size; }
- // getType - Return the node type of this object...
+ /// getType - Return the node type of this object...
+ ///
const Type *getType() const { return Ty; }
+
bool isArray() const { return NodeType & Array; }
/// hasNoReferrers - Return true if nothing is pointing to this node at all.
/// getForwardNode - This method returns the node that this node is forwarded
/// to, if any.
+ ///
DSNode *getForwardNode() const { return ForwardNH.getNode(); }
/// isForwarding - Return true if this node is forwarding to another.
/// stopForwarding - When the last reference to this forwarding node has been
/// dropped, delete the node.
+ ///
void stopForwarding() {
assert(isForwarding() &&
- "Node isn't forwarding, cannot stopForwarding!");
+ "Node isn't forwarding, cannot stopForwarding()!");
ForwardNH.setNode(0);
assert(ParentGraph == 0 &&
"Forwarding nodes must have been removed from graph!");
}
/// getLink - Return the link at the specified offset.
+ ///
DSNodeHandle &getLink(unsigned Offset) {
assert((Offset & ((1 << DS::PointerShift)-1)) == 0 &&
"Pointer offset not aligned correctly!");
/// getNodeFlags - Return all of the flags set on the node. If the DEAD flag
/// is set, hide it from the caller.
+ ///
unsigned getNodeFlags() const { return NodeType & ~DEAD; }
bool isAllocaNode() const { return NodeType & AllocaNode; }
DSNode *setIncompleteMarker() { NodeType |= Incomplete; return this; }
DSNode *setModifiedMarker() { NodeType |= Modified; return this; }
DSNode *setReadMarker() { NodeType |= Read; return this; }
+ DSNode *setArrayMarker() { NodeType |= Array; return this; }
void makeNodeDead() {
Globals.clear();
/// remapLinks - Change all of the Links in the current node according to the
/// specified mapping.
+ ///
void remapLinks(hash_map<const DSNode*, DSNodeHandle> &OldNodeMap);
/// markReachableNodes - This method recursively traverses the specified
getNode()->setLink(Off+Offset, NH);
}
-/// addEdgeTo - Add an edge from the current node to the specified node. This
+/// addEdgeTo - Add an edge from the current node to the specified node. This
/// can cause merging of nodes in the graph.
///
inline void DSNodeHandle::addEdgeTo(unsigned Off, const DSNodeHandle &Node) {