[clang] [clang][TableGen] Change Opcode Emitter to use const RecordKeeper (PR #108211)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Rahul Joshi (jurahul)

<details>
<summary>Changes</summary>

Change Opcode Emitter to use const RecordKeeper.

This is a part of effort to have better const correctness in TableGen backends:

https://discourse.llvm.org/t/psa-planned-changes-to-tablegen-getallderiveddefinitions-api-potential-downstream-breakages/81089

---
Full diff: https://github.com/llvm/llvm-project/pull/108211.diff


2 Files Affected:

- (modified) clang/utils/TableGen/ClangOpcodesEmitter.cpp (+3-3) 
- (modified) clang/utils/TableGen/TableGenBackends.h (+1-1) 


``````````diff
diff --git a/clang/utils/TableGen/ClangOpcodesEmitter.cpp b/clang/utils/TableGen/ClangOpcodesEmitter.cpp
index 120e1e2efa32b4..7e426d59359a87 100644
--- a/clang/utils/TableGen/ClangOpcodesEmitter.cpp
+++ b/clang/utils/TableGen/ClangOpcodesEmitter.cpp
@@ -20,11 +20,11 @@ using namespace llvm;
 
 namespace {
 class ClangOpcodesEmitter {
-  RecordKeeper &Records;
+  const RecordKeeper &Records;
   unsigned NumTypes;
 
 public:
-  ClangOpcodesEmitter(RecordKeeper &R)
+  ClangOpcodesEmitter(const RecordKeeper &R)
       : Records(R), NumTypes(Records.getAllDerivedDefinitions("Type").size()) {}
 
   void run(raw_ostream &OS);
@@ -404,6 +404,6 @@ void ClangOpcodesEmitter::PrintTypes(raw_ostream &OS,
   OS << ">";
 }
 
-void clang::EmitClangOpcodes(RecordKeeper &Records, raw_ostream &OS) {
+void clang::EmitClangOpcodes(const RecordKeeper &Records, raw_ostream &OS) {
   ClangOpcodesEmitter(Records).run(OS);
 }
diff --git a/clang/utils/TableGen/TableGenBackends.h b/clang/utils/TableGen/TableGenBackends.h
index 3a424c9c91fe71..5050b764b09fb8 100644
--- a/clang/utils/TableGen/TableGenBackends.h
+++ b/clang/utils/TableGen/TableGenBackends.h
@@ -94,7 +94,7 @@ void EmitClangCommentCommandInfo(llvm::RecordKeeper &Records,
                                  llvm::raw_ostream &OS);
 void EmitClangCommentCommandList(llvm::RecordKeeper &Records,
                                  llvm::raw_ostream &OS);
-void EmitClangOpcodes(llvm::RecordKeeper &Records, llvm::raw_ostream &OS);
+void EmitClangOpcodes(const llvm::RecordKeeper &Records, llvm::raw_ostream &OS);
 
 void EmitClangSyntaxNodeList(llvm::RecordKeeper &Records,
                              llvm::raw_ostream &OS);

``````````

</details>


https://github.com/llvm/llvm-project/pull/108211