Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See:...

[oota-llvm.git] / include / llvm / Analysis / Dominators.h

diff --git a/include/llvm/Analysis/Dominators.h b/include/llvm/Analysis/Dominators.h
index 372465a0544dd9d29669656b130d3322f754c93a..a1cc196eae30ed55a0e5fff76b2f533e7c24c0b2 100644 (file)
--- a/include/llvm/Analysis/Dominators.h
+++ b/include/llvm/Analysis/Dominators.h
@@ -152,7 +152,7 @@ EXTERN_TEMPLATE_INSTANTIATION(class DomTreeNodeBase<BasicBlock>);
 EXTERN_TEMPLATE_INSTANTIATION(class DomTreeNodeBase<MachineBasicBlock>);
 
 template<class NodeT>
-static raw_ostream &operator<<(raw_ostream &o,
+inline raw_ostream &operator<<(raw_ostream &o,
                                const DomTreeNodeBase<NodeT> *Node) {
   if (Node->getBlock())
     WriteAsOperand(o, Node->getBlock(), false);
@@ -165,7 +165,7 @@ static raw_ostream &operator<<(raw_ostream &o,
 }
 
 template<class NodeT>
-static void PrintDomTree(const DomTreeNodeBase<NodeT> *N, raw_ostream &o,
+inline void PrintDomTree(const DomTreeNodeBase<NodeT> *N, raw_ostream &o,
                          unsigned Lev) {
   o.indent(2*Lev) << "[" << Lev << "] " << N;
   for (typename DomTreeNodeBase<NodeT>::const_iterator I = N->begin(),
@@ -705,6 +705,21 @@ DominatorTreeBase<NodeT>::properlyDominates(const NodeT *A, const NodeT *B) {
 
 EXTERN_TEMPLATE_INSTANTIATION(class DominatorTreeBase<BasicBlock>);
 
+class BasicBlockEdge {
+  const BasicBlock *Start;
+  const BasicBlock *End;
+public:
+  BasicBlockEdge(const BasicBlock *Start_, const BasicBlock *End_) :
+    Start(Start_), End(End_) { }
+  const BasicBlock *getStart() const {
+    return Start;
+  }
+  const BasicBlock *getEnd() const {
+    return End;
+  }
+  bool isSingleEdge() const;
+};
+
 //===-------------------------------------
 /// DominatorTree Class - Concrete subclass of DominatorTreeBase that is used to
 /// compute a normal dominator tree.
@@ -775,8 +790,11 @@ public:
   // dominates - Return true if Def dominates a use in User. This performs
   // the special checks necessary if Def and User are in the same basic block.
   // Note that Def doesn't dominate a use in Def itself!
+  bool dominates(const Instruction *Def, const Use &U) const;
   bool dominates(const Instruction *Def, const Instruction *User) const;
   bool dominates(const Instruction *Def, const BasicBlock *BB) const;
+  bool dominates(const BasicBlockEdge &BBE, const Use &U) const;
+  bool dominates(const BasicBlockEdge &BBE, const BasicBlock *BB) const;
 
   bool properlyDominates(const DomTreeNode *A, const DomTreeNode *B) const {
     return DT->properlyDominates(A, B);
@@ -843,6 +861,8 @@ public:
     return DT->isReachableFromEntry(A);
   }
 
+  bool isReachableFromEntry(const Use &U) const;
+
 
   virtual void releaseMemory() {
     DT->releaseMemory();