add a new code

[oota-llvm.git] / include / llvm / Use.h

diff --git a/include/llvm/Use.h b/include/llvm/Use.h
index bbf523574cd61afc7ae94d1bc6cae48b5becb5dd..c88d41f700544007ad8dd1cbf0778c58f3efb66d 100644 (file)
--- a/include/llvm/Use.h
+++ b/include/llvm/Use.h
@@ -1,10 +1,10 @@
 //===-- llvm/Use.h - Definition of the Use class ----------------*- C++ -*-===//
-// 
+//
 //                     The LLVM Compiler Infrastructure
 //
 // This file was developed by the LLVM research group and is distributed under
 // the University of Illinois Open Source License. See LICENSE.TXT for details.
-// 
+//
 //===----------------------------------------------------------------------===//
 //
 // This defines the Use class.  The Use class represents the operand of an
@@ -114,7 +114,7 @@ public:
   value_use_iterator(const _Self &I) : U(I.U) {}
   value_use_iterator() {}
 
-  bool operator==(const _Self &x) const { 
+  bool operator==(const _Self &x) const {
     return U == x.U;
   }
   bool operator!=(const _Self &x) const {
@@ -125,14 +125,14 @@ public:
   _Self &operator++() {          // Preincrement
     assert(U && "Cannot increment end iterator!");
     U = U->getNext();
-    return *this; 
+    return *this;
   }
   _Self operator++(int) {        // Postincrement
-    _Self tmp = *this; ++*this; return tmp; 
+    _Self tmp = *this; ++*this; return tmp;
   }
 
   // Retrieve a reference to the current SCC
-   UserTy *operator*() const { 
+  UserTy *operator*() const {
     assert(U && "Cannot increment end iterator!");
     return U->getUser();
   }
@@ -140,8 +140,37 @@ public:
   UserTy *operator->() const { return operator*(); }
 
   Use &getUse() const { return *U; }
+  
+  /// getOperandNo - Return the operand # of this use in its User.  Defined in
+  /// User.h
+  ///
+  unsigned getOperandNo() const;
+};
+
+
+template<> struct simplify_type<value_use_iterator<User> > {
+  typedef User* SimpleType;
+  
+  static SimpleType getSimplifiedValue(const value_use_iterator<User> &Val) {
+    return *Val;
+  }
+};
+
+template<> struct simplify_type<const value_use_iterator<User> >
+ : public simplify_type<value_use_iterator<User> > {};
+
+template<> struct simplify_type<value_use_iterator<const User> > {
+  typedef const User* SimpleType;
+  
+  static SimpleType getSimplifiedValue(const 
+                                       value_use_iterator<const User> &Val) {
+    return *Val;
+  }
 };
 
+template<> struct simplify_type<const value_use_iterator<const User> >
+  : public simplify_type<value_use_iterator<const User> > {};
+
 } // End llvm namespace
 
 #endif