Implememting named register intrinsics

[oota-llvm.git] / include / llvm / IR / Metadata.h

diff --git a/include/llvm/IR/Metadata.h b/include/llvm/IR/Metadata.h
index 9992e5cbde1466d4c5ffdf3425810b589c326156..7a0ca887201bcb488a0326278ff11cee918f32db 100644 (file)
--- a/include/llvm/IR/Metadata.h
+++ b/include/llvm/IR/Metadata.h
@@ -210,7 +210,7 @@ class NamedMDNode : public ilist_node<NamedMDNode> {
 
   template<class T1, class T2>
   class op_iterator_impl :
-      public std::iterator<std::random_access_iterator_tag, T2> {
+      public std::iterator<std::bidirectional_iterator_tag, T2> {
     const NamedMDNode *Node;
     unsigned Idx;
     op_iterator_impl(const NamedMDNode *N, unsigned i) : Node(N), Idx(i) { }
@@ -218,8 +218,7 @@ class NamedMDNode : public ilist_node<NamedMDNode> {
     friend class NamedMDNode;
 
   public:
-    op_iterator_impl() : Node(0), Idx(0) { }
-    op_iterator_impl(const op_iterator_impl &o) : Node(o.Node), Idx(o.Idx) { }
+    op_iterator_impl() : Node(nullptr), Idx(0) { }
 
     bool operator==(const op_iterator_impl &o) const { return Idx == o.Idx; }
     bool operator!=(const op_iterator_impl &o) const { return Idx != o.Idx; }
@@ -232,11 +231,16 @@ class NamedMDNode : public ilist_node<NamedMDNode> {
       operator++();
       return tmp;
     }
-    op_iterator_impl &operator=(const op_iterator_impl &o) {
-      Node = o.Node;
-      Idx = o.Idx;
+    op_iterator_impl &operator--() {
+      --Idx;
       return *this;
     }
+    op_iterator_impl operator--(int) {
+      op_iterator_impl tmp(*this);
+      operator--();
+      return tmp;
+    }
+
     T1 operator*() const { return Node->getOperand(Idx); }
   };
 
@@ -268,7 +272,7 @@ public:
   StringRef getName() const;
 
   /// print - Implement operator<< on NamedMDNode.
-  void print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW = 0) const;
+  void print(raw_ostream &ROS) const;
 
   /// dump() - Allow printing of NamedMDNodes from the debugger.
   void dump() const;