Vendor import of llvm trunk r126079:

http://llvm.org/svn/llvm-project/llvm/trunk@126079

1 files changed, 6 insertions, 35 deletions

diff --git a/include/llvm/User.h b/include/llvm/User.h
index f827795..1363495 100644
--- a/include/llvm/User.h
+++ b/include/llvm/User.h
@@ -29,20 +29,6 @@ namespace llvm {
 template <class>
 struct OperandTraits;
 
-class User;
-
-/// OperandTraits<User> - specialization to User
-template <>
-struct OperandTraits<User> {
-  static inline Use *op_begin(User*);
-  static inline Use *op_end(User*);
-  static inline unsigned operands(const User*);
-  template <class U>
-  struct Layout {
-    typedef U overlay;
-  };
-};
-
 class User : public Value {
   User(const User &);             // Do not implement
   void *operator new(size_t);     // Do not implement
@@ -61,21 +47,18 @@ protected:
   unsigned NumOperands;
 
   void *operator new(size_t s, unsigned Us);
-  void *operator new(size_t s, unsigned Us, bool Prefix);
   User(const Type *ty, unsigned vty, Use *OpList, unsigned NumOps)
     : Value(ty, vty), OperandList(OpList), NumOperands(NumOps) {}
   Use *allocHungoffUses(unsigned) const;
-  void dropHungoffUses(Use *U) {
-    if (OperandList == U) {
-      OperandList = 0;
-      NumOperands = 0;
-    }
-    Use::zap(U, U->getImpliedUser(), true);
+  void dropHungoffUses() {
+    Use::zap(OperandList, OperandList + NumOperands, true);
+    OperandList = 0;
+    // Reset NumOperands so User::operator delete() does the right thing.
+    NumOperands = 0;
   }
 public:
   ~User() {
-    if ((intptr_t(OperandList) & 1) == 0)
-      Use::zap(OperandList, OperandList + NumOperands);
+    Use::zap(OperandList, OperandList + NumOperands);
   }
   /// operator delete - free memory allocated for User and Use objects
   void operator delete(void *Usr);
@@ -158,18 +141,6 @@ public:
   }
 };
 
-inline Use *OperandTraits<User>::op_begin(User *U) {
-  return U->op_begin();
-}
-
-inline Use *OperandTraits<User>::op_end(User *U) {
-  return U->op_end();
-}
-
-inline unsigned OperandTraits<User>::operands(const User *U) {
-  return U->getNumOperands();
-}
-
 template<> struct simplify_type<User::op_iterator> {
   typedef Value* SimpleType;