Create Value.def helper. NFC.

This is similar to Metadata.def and Instructions.def but for Value's.

It will be used in upcoming commits to devirtualize the Value class.

Reviewed by Duncan Exon Smith.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240358 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/IR/Value.h

@@ -333,32 +333,12 @@ public:
   /// 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
-    BlockAddressVal,          // This is an instance of BlockAddress
-    ConstantExprVal,          // This is an instance of ConstantExpr
-    ConstantAggregateZeroVal, // This is an instance of ConstantAggregateZero
-    ConstantDataArrayVal,     // This is an instance of ConstantDataArray
-    ConstantDataVectorVal,    // This is an instance of ConstantDataVector
-    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
-    MetadataAsValueVal,       // This is an instance of MetadataAsValue
-    InlineAsmVal,             // This is an instance of InlineAsm
-    InstructionVal,           // This is an instance of Instruction
-    // Enum values starting at InstructionVal are used for Instructions;
-    // don't add new values here!
+#define HANDLE_VALUE(Name) Name##Val,
+#include "llvm/IR/Value.def"
 
     // Markers:
-    ConstantFirstVal = FunctionVal,
-    ConstantLastVal  = ConstantPointerNullVal
+#define HANDLE_CONSTANT_MARKER(Marker, Constant) Marker = Constant##Val,
+#include "llvm/IR/Value.def"
   };
 
   /// \brief Return an ID for the concrete type of this object.