From 8fd80d1d136685688ff49c9d80552bbb7addbda4 Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu@google.com>
Date: Wed, 14 Jun 2023 22:04:40 -0700
Subject: [PATCH] [CodeGen] Remove unused function
 GetOrCreateRTTIProxyGlobalVariable

The last use was removed by:

  commit 46f366494f3ca8cc98daa6fb4f29c7c446c176b6
  Author: Fangrui Song <i@maskray.me>
  Date:   Sat May 20 08:24:20 2023 -0700

This patch also removes RTTIProxyMap, which becomes unused once I
remove GetOrCreateRTTIProxyGlobalVariable.

Differential Revision: https://reviews.llvm.org/D152782
---
 clang/lib/CodeGen/CodeGenModule.cpp | 16 ----------------
 clang/lib/CodeGen/CodeGenModule.h   |  5 -----
 2 files changed, 21 deletions(-)

diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index dd8c384..8b2fa5e 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -2028,22 +2028,6 @@ CodeGenModule::getMostBaseClasses(const CXXRecordDecl *RD) {
   return MostBases.takeVector();
 }
 
-llvm::GlobalVariable *
-CodeGenModule::GetOrCreateRTTIProxyGlobalVariable(llvm::Constant *Addr) {
-  auto It = RTTIProxyMap.find(Addr);
-  if (It != RTTIProxyMap.end())
-    return It->second;
-
-  auto *FTRTTIProxy = new llvm::GlobalVariable(
-      TheModule, Addr->getType(),
-      /*isConstant=*/true, llvm::GlobalValue::PrivateLinkage, Addr,
-      "__llvm_rtti_proxy");
-  FTRTTIProxy->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
-
-  RTTIProxyMap[Addr] = FTRTTIProxy;
-  return FTRTTIProxy;
-}
-
 void CodeGenModule::SetLLVMFunctionAttributesForDefinition(const Decl *D,
                                                            llvm::Function *F) {
   llvm::AttrBuilder B(F->getContext());
diff --git a/clang/lib/CodeGen/CodeGenModule.h b/clang/lib/CodeGen/CodeGenModule.h
index 43d61b4..2d2cce8 100644
--- a/clang/lib/CodeGen/CodeGenModule.h
+++ b/clang/lib/CodeGen/CodeGenModule.h
@@ -590,8 +590,6 @@ private:
   MetadataTypeMap VirtualMetadataIdMap;
   MetadataTypeMap GeneralizedMetadataIdMap;
 
-  llvm::DenseMap<const llvm::Constant *, llvm::GlobalVariable *> RTTIProxyMap;
-
   // Helps squashing blocks of TopLevelStmtDecl into a single llvm::Function
   // when used with -fincremental-extensions.
   std::pair<std::unique_ptr<CodeGenFunction>, const TopLevelStmtDecl *>
@@ -1503,9 +1501,6 @@ public:
   std::vector<const CXXRecordDecl *>
   getMostBaseClasses(const CXXRecordDecl *RD);
 
-  llvm::GlobalVariable *
-  GetOrCreateRTTIProxyGlobalVariable(llvm::Constant *Addr);
-
   /// Get the declaration of std::terminate for the platform.
   llvm::FunctionCallee getTerminateFn();
 
-- 
2.7.4