From 6b31e63bc31b85a2969b69da8c36ff0526e0d8b1 Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu@google.com>
Date: Sat, 24 Jun 2023 07:33:50 -0700
Subject: [PATCH] [LegacyPM] Remove RewriteSymbolsLegacyPass

Differential Revision: https://reviews.llvm.org/D153679
---
 llvm/include/llvm/InitializePasses.h          |  1 -
 llvm/include/llvm/LinkAllPasses.h             |  1 -
 .../llvm/Transforms/Utils/SymbolRewriter.h    |  3 --
 llvm/lib/Transforms/Utils/SymbolRewriter.cpp  | 43 -------------------
 llvm/tools/opt/opt.cpp                        |  1 -
 5 files changed, 49 deletions(-)

diff --git a/llvm/include/llvm/InitializePasses.h b/llvm/include/llvm/InitializePasses.h
index 108de472e9081..c6fee47b464b9 100644
--- a/llvm/include/llvm/InitializePasses.h
+++ b/llvm/include/llvm/InitializePasses.h
@@ -287,7 +287,6 @@ void initializeRemoveRedundantDebugValuesPass(PassRegistry&);
 void initializeRenameIndependentSubregsPass(PassRegistry&);
 void initializeReplaceWithVeclibLegacyPass(PassRegistry &);
 void initializeResetMachineFunctionPass(PassRegistry&);
-void initializeRewriteSymbolsLegacyPassPass(PassRegistry&);
 void initializeSCEVAAWrapperPassPass(PassRegistry&);
 void initializeSROALegacyPassPass(PassRegistry&);
 void initializeSafeStackLegacyPassPass(PassRegistry&);
diff --git a/llvm/include/llvm/LinkAllPasses.h b/llvm/include/llvm/LinkAllPasses.h
index 7dd41b86700d4..7420ea64e9543 100644
--- a/llvm/include/llvm/LinkAllPasses.h
+++ b/llvm/include/llvm/LinkAllPasses.h
@@ -154,7 +154,6 @@ namespace {
       (void) llvm::createSeparateConstOffsetFromGEPPass();
       (void) llvm::createSpeculativeExecutionPass();
       (void) llvm::createSpeculativeExecutionIfHasBranchDivergencePass();
-      (void) llvm::createRewriteSymbolsPass();
       (void) llvm::createStraightLineStrengthReducePass();
       (void)llvm::createScalarizeMaskedMemIntrinLegacyPass();
       (void) llvm::createHardwareLoopsLegacyPass();
diff --git a/llvm/include/llvm/Transforms/Utils/SymbolRewriter.h b/llvm/include/llvm/Transforms/Utils/SymbolRewriter.h
index 1c6f90faf2b40..80dc6a42d9311 100644
--- a/llvm/include/llvm/Transforms/Utils/SymbolRewriter.h
+++ b/llvm/include/llvm/Transforms/Utils/SymbolRewriter.h
@@ -114,9 +114,6 @@ class RewriteMapParser {
 
 } // end namespace SymbolRewriter
 
-ModulePass *createRewriteSymbolsPass();
-ModulePass *createRewriteSymbolsPass(SymbolRewriter::RewriteDescriptorList &);
-
 class RewriteSymbolPass : public PassInfoMixin<RewriteSymbolPass> {
 public:
   RewriteSymbolPass() { loadAndParseMapFiles(); }
diff --git a/llvm/lib/Transforms/Utils/SymbolRewriter.cpp b/llvm/lib/Transforms/Utils/SymbolRewriter.cpp
index 4ad16d622e8d1..c3ae43e567b01 100644
--- a/llvm/lib/Transforms/Utils/SymbolRewriter.cpp
+++ b/llvm/lib/Transforms/Utils/SymbolRewriter.cpp
@@ -517,37 +517,6 @@ parseRewriteGlobalAliasDescriptor(yaml::Stream &YS, yaml::ScalarNode *K,
   return true;
 }
 
-namespace {
-
-class RewriteSymbolsLegacyPass : public ModulePass {
-public:
-  static char ID; // Pass identification, replacement for typeid
-
-  RewriteSymbolsLegacyPass();
-  RewriteSymbolsLegacyPass(SymbolRewriter::RewriteDescriptorList &DL);
-
-  bool runOnModule(Module &M) override;
-
-private:
-  RewriteSymbolPass Impl;
-};
-
-} // end anonymous namespace
-
-char RewriteSymbolsLegacyPass::ID = 0;
-
-RewriteSymbolsLegacyPass::RewriteSymbolsLegacyPass() : ModulePass(ID) {
-  initializeRewriteSymbolsLegacyPassPass(*PassRegistry::getPassRegistry());
-}
-
-RewriteSymbolsLegacyPass::RewriteSymbolsLegacyPass(
-    SymbolRewriter::RewriteDescriptorList &DL)
-    : ModulePass(ID), Impl(DL) {}
-
-bool RewriteSymbolsLegacyPass::runOnModule(Module &M) {
-  return Impl.runImpl(M);
-}
-
 PreservedAnalyses RewriteSymbolPass::run(Module &M, ModuleAnalysisManager &AM) {
   if (!runImpl(M))
     return PreservedAnalyses::all();
@@ -572,15 +541,3 @@ void RewriteSymbolPass::loadAndParseMapFiles() {
   for (const auto &MapFile : MapFiles)
     Parser.parse(MapFile, &Descriptors);
 }
-
-INITIALIZE_PASS(RewriteSymbolsLegacyPass, "rewrite-symbols", "Rewrite Symbols",
-                false, false)
-
-ModulePass *llvm::createRewriteSymbolsPass() {
-  return new RewriteSymbolsLegacyPass();
-}
-
-ModulePass *
-llvm::createRewriteSymbolsPass(SymbolRewriter::RewriteDescriptorList &DL) {
-  return new RewriteSymbolsLegacyPass(DL);
-}
diff --git a/llvm/tools/opt/opt.cpp b/llvm/tools/opt/opt.cpp
index a9248efa189fc..5e1e221a5dcbe 100644
--- a/llvm/tools/opt/opt.cpp
+++ b/llvm/tools/opt/opt.cpp
@@ -434,7 +434,6 @@ int main(int argc, char **argv) {
   initializeCallBrPreparePass(Registry);
   initializeCodeGenPreparePass(Registry);
   initializeAtomicExpandPass(Registry);
-  initializeRewriteSymbolsLegacyPassPass(Registry);
   initializeWinEHPreparePass(Registry);
   initializeDwarfEHPrepareLegacyPassPass(Registry);
   initializeSafeStackLegacyPassPass(Registry);