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.def

@@ -0,0 +1,90 @@
+//===-------- llvm/IR/Value.def - File that describes Values ---v-*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains descriptions of the various LLVM values.  This is
+// used as a central place for enumerating the different values.
+//
+//===----------------------------------------------------------------------===//
+
+// NOTE: NO INCLUDE GUARD DESIRED!
+
+// Provide definitions of macros so that users of this file do not have to
+// define everything to use it...
+//
+#if !(defined HANDLE_GLOBAL_VALUE || defined HANDLE_CONSTANT ||                \
+      defined HANDLE_INSTRUCTION || defined HANDLE_INLINE_ASM_VALUE ||         \
+      defined HANDLE_METADATA_VALUE || defined HANDLE_VALUE ||                 \
+      defined HANDLE_CONSTANT_MARKER)
+#error "Missing macro definition of HANDLE_VALUE*"
+#endif
+
+#ifndef HANDLE_GLOBAL_VALUE
+#define HANDLE_GLOBAL_VALUE(ValueName) HANDLE_CONSTANT(ValueName)
+#endif
+
+#ifndef HANDLE_CONSTANT
+#define HANDLE_CONSTANT(ValueName) HANDLE_VALUE(ValueName)
+#endif
+
+#ifndef HANDLE_INSTRUCTION
+#define HANDLE_INSTRUCTION(ValueName) HANDLE_VALUE(ValueName)
+#endif
+
+#ifndef HANDLE_INLINE_ASM_VALUE
+#define HANDLE_INLINE_ASM_VALUE(ValueName) HANDLE_VALUE(ValueName)
+#endif
+
+#ifndef HANDLE_METADATA_VALUE
+#define HANDLE_METADATA_VALUE(ValueName) HANDLE_VALUE(ValueName)
+#endif
+
+#ifndef HANDLE_VALUE
+#define HANDLE_VALUE(ValueName)
+#endif
+
+#ifndef HANDLE_CONSTANT_MARKER
+#define HANDLE_CONSTANT_MARKER(MarkerName, ValueName)
+#endif
+
+HANDLE_VALUE(Argument)
+HANDLE_VALUE(BasicBlock)
+
+HANDLE_GLOBAL_VALUE(Function)
+HANDLE_GLOBAL_VALUE(GlobalAlias)
+HANDLE_GLOBAL_VALUE(GlobalVariable)
+HANDLE_CONSTANT(UndefValue)
+HANDLE_CONSTANT(BlockAddress)
+HANDLE_CONSTANT(ConstantExpr)
+HANDLE_CONSTANT(ConstantAggregateZero)
+HANDLE_CONSTANT(ConstantDataArray)
+HANDLE_CONSTANT(ConstantDataVector)
+HANDLE_CONSTANT(ConstantInt)
+HANDLE_CONSTANT(ConstantFP)
+HANDLE_CONSTANT(ConstantArray)
+HANDLE_CONSTANT(ConstantStruct)
+HANDLE_CONSTANT(ConstantVector)
+HANDLE_CONSTANT(ConstantPointerNull)
+
+HANDLE_METADATA_VALUE(MetadataAsValue)
+HANDLE_INLINE_ASM_VALUE(InlineAsm)
+
+HANDLE_INSTRUCTION(Instruction)
+// Enum values starting at InstructionVal are used for Instructions;
+// don't add new values here!
+
+HANDLE_CONSTANT_MARKER(ConstantFirstVal, Function)
+HANDLE_CONSTANT_MARKER(ConstantLastVal, ConstantPointerNull)
+
+#undef HANDLE_GLOBAL_VALUE
+#undef HANDLE_CONSTANT
+#undef HANDLE_INSTRUCTION
+#undef HANDLE_METADATA_VALUE
+#undef HANDLE_INLINE_ASM_VALUE
+#undef HANDLE_VALUE
+#undef HANDLE_CONSTANT_MARKER

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.