Trim a #include.

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

diff --git a/include/llvm/Value.h b/include/llvm/Value.h
index 1be6ffd488218cc7f5bd8b39c5f76d2f30570a41..bc25a0f401442270165de727d10c955bd2782b78 100644 (file)
--- a/include/llvm/Value.h
+++ b/include/llvm/Value.h
@@ -41,8 +41,8 @@ class raw_ostream;
 class AssemblyAnnotationWriter;
 class ValueHandleBase;
 class LLVMContext;
-class MetadataContextImpl;
 class Twine;
+class MDNode;
 
 //===----------------------------------------------------------------------===//
 //                                 Value Class
@@ -157,13 +157,13 @@ public:
   // Methods for handling the chain of uses of this Value.
   //
   typedef value_use_iterator<User>       use_iterator;
-  typedef value_use_iterator<const User> use_const_iterator;
+  typedef value_use_iterator<const User> const_use_iterator;
 
   bool               use_empty() const { return UseList == 0; }
   use_iterator       use_begin()       { return use_iterator(UseList); }
-  use_const_iterator use_begin() const { return use_const_iterator(UseList); }
+  const_use_iterator use_begin() const { return const_use_iterator(UseList); }
   use_iterator       use_end()         { return use_iterator(0);   }
-  use_const_iterator use_end()   const { return use_const_iterator(0);   }
+  const_use_iterator use_end()   const { return const_use_iterator(0);   }
   User              *use_back()        { return *use_begin(); }
   const User        *use_back()  const { return *use_begin(); }
 
@@ -172,7 +172,7 @@ public:
   /// traversing the whole use list.
   ///
   bool hasOneUse() const {
-    use_const_iterator I = use_begin(), E = use_end();
+    const_use_iterator I = use_begin(), E = use_end();
     if (I == E) return false;
     return ++I == E;
   }
@@ -215,6 +215,7 @@ public:
     ConstantFPVal,            // This is an instance of ConstantFP
     ConstantArrayVal,         // This is an instance of ConstantArray
     ConstantStructVal,        // This is an instance of ConstantStruct
+    ConstantUnionVal,         // This is an instance of ConstantUnion
     ConstantVectorVal,        // This is an instance of ConstantVector
     ConstantPointerNullVal,   // This is an instance of ConstantPointerNull
     MDNodeVal,                // This is an instance of MDNode
@@ -285,10 +286,11 @@ public:
   /// getUnderlyingObject - This method strips off any GEP address adjustments
   /// and pointer casts from the specified value, returning the original object
   /// being addressed.  Note that the returned value has pointer type if the
-  /// specified value does.
-  Value *getUnderlyingObject();
-  const Value *getUnderlyingObject() const {
-    return const_cast<Value*>(this)->getUnderlyingObject();
+  /// specified value does.  If the MaxLookup value is non-zero, it limits the
+  /// number of instructions to be stripped off.
+  Value *getUnderlyingObject(unsigned MaxLookup = 6);
+  const Value *getUnderlyingObject(unsigned MaxLookup = 6) const {
+    return const_cast<Value*>(this)->getUnderlyingObject(MaxLookup);
   }
   
   /// DoPHITranslation - If this value is a PHI node with CurBB as its parent,
@@ -322,36 +324,67 @@ void Use::set(Value *V) {
 // isa - Provide some specializations of isa so that we don't have to include
 // the subtype header files to test to see if the value is a subclass...
 //
-template <> inline bool isa_impl<Constant, Value>(const Value &Val) {
-  return Val.getValueID() >= Value::ConstantFirstVal &&
-         Val.getValueID() <= Value::ConstantLastVal;
-}
-template <> inline bool isa_impl<Argument, Value>(const Value &Val) {
-  return Val.getValueID() == Value::ArgumentVal;
-}
-template <> inline bool isa_impl<InlineAsm, Value>(const Value &Val) {
-  return Val.getValueID() == Value::InlineAsmVal;
-}
-template <> inline bool isa_impl<Instruction, Value>(const Value &Val) {
-  return Val.getValueID() >= Value::InstructionVal;
-}
-template <> inline bool isa_impl<BasicBlock, Value>(const Value &Val) {
-  return Val.getValueID() == Value::BasicBlockVal;
-}
-template <> inline bool isa_impl<Function, Value>(const Value &Val) {
-  return Val.getValueID() == Value::FunctionVal;
-}
-template <> inline bool isa_impl<GlobalVariable, Value>(const Value &Val) {
-  return Val.getValueID() == Value::GlobalVariableVal;
-}
-template <> inline bool isa_impl<GlobalAlias, Value>(const Value &Val) {
-  return Val.getValueID() == Value::GlobalAliasVal;
-}
-template <> inline bool isa_impl<GlobalValue, Value>(const Value &Val) {
-  return isa<GlobalVariable>(Val) || isa<Function>(Val) ||
-         isa<GlobalAlias>(Val);
-}
-  
+template <> struct isa_impl<Constant, Value> {
+  static inline bool doit(const Value &Val) {
+    return Val.getValueID() >= Value::ConstantFirstVal &&
+      Val.getValueID() <= Value::ConstantLastVal;
+  }
+};
+
+template <> struct isa_impl<Argument, Value> {
+  static inline bool doit (const Value &Val) {
+    return Val.getValueID() == Value::ArgumentVal;
+  }
+};
+
+template <> struct isa_impl<InlineAsm, Value> { 
+  static inline bool doit(const Value &Val) {
+    return Val.getValueID() == Value::InlineAsmVal;
+  }
+};
+
+template <> struct isa_impl<Instruction, Value> { 
+  static inline bool doit(const Value &Val) {
+    return Val.getValueID() >= Value::InstructionVal;
+  }
+};
+
+template <> struct isa_impl<BasicBlock, Value> { 
+  static inline bool doit(const Value &Val) {
+    return Val.getValueID() == Value::BasicBlockVal;
+  }
+};
+
+template <> struct isa_impl<Function, Value> { 
+  static inline bool doit(const Value &Val) {
+    return Val.getValueID() == Value::FunctionVal;
+  }
+};
+
+template <> struct isa_impl<GlobalVariable, Value> { 
+  static inline bool doit(const Value &Val) {
+    return Val.getValueID() == Value::GlobalVariableVal;
+  }
+};
+
+template <> struct isa_impl<GlobalAlias, Value> { 
+  static inline bool doit(const Value &Val) {
+    return Val.getValueID() == Value::GlobalAliasVal;
+  }
+};
+
+template <> struct isa_impl<GlobalValue, Value> { 
+  static inline bool doit(const Value &Val) {
+    return isa<GlobalVariable>(Val) || isa<Function>(Val) ||
+      isa<GlobalAlias>(Val);
+  }
+};
+
+template <> struct isa_impl<MDNode, Value> { 
+  static inline bool doit(const Value &Val) {
+    return Val.getValueID() == Value::MDNodeVal;
+  }
+};
   
 // Value* is only 4-byte aligned.
 template<>