[llvm] [SandboxIR][NFC] Create a DEF_CONST() macro in SandboxIRValues.def (PR #106269)

[via llvm-commits]

https://github.com/vporpo created https://github.com/llvm/llvm-project/pull/106269

This helps with Constant::classof().

>From b76d7cf502930fd72337895259fa3f704a0d3f25 Mon Sep 17 00:00:00 2001
From: Vasileios Porpodas <vporpodas at google.com>
Date: Fri, 16 Aug 2024 12:34:38 -0700
Subject: [PATCH] [SandboxIR][NFC] Create a DEF_CONST() macro in
 SandboxIRValues.def

This helps with Constant::classof().
---
 llvm/include/llvm/SandboxIR/SandboxIR.h         | 17 ++++++++++++++---
 llvm/include/llvm/SandboxIR/SandboxIRValues.def | 12 ++++++++++--
 2 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/llvm/include/llvm/SandboxIR/SandboxIR.h b/llvm/include/llvm/SandboxIR/SandboxIR.h
index 033b1fad52db50..2207d36e43a67f 100644
--- a/llvm/include/llvm/SandboxIR/SandboxIR.h
+++ b/llvm/include/llvm/SandboxIR/SandboxIR.h
@@ -220,6 +220,7 @@ class Value {
   enum class ClassID : unsigned {
 #define DEF_VALUE(ID, CLASS) ID,
 #define DEF_USER(ID, CLASS) ID,
+#define DEF_CONST(ID, CLASS) ID,
 #define DEF_INSTR(ID, OPC, CLASS) ID,
 #include "llvm/SandboxIR/SandboxIRValues.def"
   };
@@ -233,6 +234,9 @@ class Value {
 #define DEF_USER(ID, CLASS)                                                    \
   case ClassID::ID:                                                            \
     return #ID;
+#define DEF_CONST(ID, CLASS)                                                   \
+  case ClassID::ID:                                                            \
+    return #ID;
 #define DEF_INSTR(ID, OPC, CLASS)                                              \
   case ClassID::ID:                                                            \
     return #ID;
@@ -515,6 +519,7 @@ class User : public Value {
 };
 
 class Constant : public sandboxir::User {
+protected:
   Constant(llvm::Constant *C, sandboxir::Context &SBCtx)
       : sandboxir::User(ClassID::Constant, C, SBCtx) {}
   Constant(ClassID ID, llvm::Constant *C, sandboxir::Context &SBCtx)
@@ -529,9 +534,15 @@ class Constant : public sandboxir::User {
 public:
   /// For isa/dyn_cast.
   static bool classof(const sandboxir::Value *From) {
-    return From->getSubclassID() == ClassID::Constant ||
-           From->getSubclassID() == ClassID::ConstantInt ||
-           From->getSubclassID() == ClassID::Function;
+    switch (From->getSubclassID()) {
+#define DEF_CONST(ID, CLASS) case ClassID::ID:
+#include "llvm/SandboxIR/SandboxIRValues.def"
+      return true;
+    case ClassID::Function:
+      return true;
+    default:
+      return false;
+    }
   }
   sandboxir::Context &getParent() const { return getContext(); }
   unsigned getUseOperandNo(const Use &Use) const override {
diff --git a/llvm/include/llvm/SandboxIR/SandboxIRValues.def b/llvm/include/llvm/SandboxIR/SandboxIRValues.def
index 27a72f21aad06d..8080f54458998b 100644
--- a/llvm/include/llvm/SandboxIR/SandboxIRValues.def
+++ b/llvm/include/llvm/SandboxIR/SandboxIRValues.def
@@ -16,10 +16,15 @@ DEF_VALUE(Argument, Argument)
 #ifndef DEF_USER
 #define DEF_USER(ID, CLASS)
 #endif
+
+#ifndef DEF_CONST
+#define DEF_CONST(ID, CLASS)
+#endif
+
 DEF_USER(User, User)
 DEF_VALUE(Block, BasicBlock)
-DEF_USER(Constant, Constant)
-DEF_USER(ConstantInt, ConstantInt)
+DEF_CONST(Constant, Constant)
+DEF_CONST(ConstantInt, ConstantInt)
 
 #ifndef DEF_INSTR
 #define DEF_INSTR(ID, OPCODE, CLASS)
@@ -109,6 +114,9 @@ DEF_INSTR(Unreachable,    OP(Unreachable),    UnreachableInst)
 #ifdef DEF_USER
 #undef DEF_USER
 #endif
+#ifdef DEF_CONST
+#undef DEF_CONST
+#endif
 #ifdef DEF_INSTR
 #undef DEF_INSTR
 #endif