+ /// An enumeration for keeping track of the concrete subclass of Value that
+ /// is actually instantiated. Values of this enumeration are kept in the
+ /// Value classes SubclassID field. They are used for concrete type
+ /// identification.
+ enum ValueTy {
+ ArgumentVal, // This is an instance of Argument
+ BasicBlockVal, // This is an instance of BasicBlock
+ FunctionVal, // This is an instance of Function
+ GlobalAliasVal, // This is an instance of GlobalAlias
+ GlobalVariableVal, // This is an instance of GlobalVariable
+ UndefValueVal, // This is an instance of UndefValue
+ ConstantExprVal, // This is an instance of ConstantExpr
+ ConstantAggregateZeroVal, // This is an instance of ConstantAggregateNull
+ ConstantIntVal, // This is an instance of ConstantInt
+ ConstantFPVal, // This is an instance of ConstantFP
+ ConstantArrayVal, // This is an instance of ConstantArray
+ ConstantStructVal, // This is an instance of ConstantStruct
+ ConstantVectorVal, // This is an instance of ConstantVector
+ ConstantPointerNullVal, // This is an instance of ConstantPointerNull
+ InlineAsmVal, // This is an instance of InlineAsm
+ PseudoSourceValueVal, // This is an instance of PseudoSourceValue
+ InstructionVal, // This is an instance of Instruction
+
+ // Markers:
+ ConstantFirstVal = FunctionVal,
+ ConstantLastVal = ConstantPointerNullVal
+ };
+
+ /// getValueID - Return an ID for the concrete type of this object. This is
+ /// used to implement the classof checks. This should not be used for any
+ /// other purpose, as the values may change as LLVM evolves. Also, note that
+ /// for instructions, the Instruction's opcode is added to InstructionVal. So
+ /// this means three things:
+ /// # there is no value with code InstructionVal (no opcode==0).
+ /// # there are more possible values for the value type than in ValueTy enum.
+ /// # the InstructionVal enumerator must be the highest valued enumerator in
+ /// the ValueTy enum.
+ unsigned getValueID() const {
+ return SubclassID;