[llvm] [NewPM] Remove AssumeBundleBuilderPassLegacyPass (PR #72817)

[Aiden Grossman via llvm-commits]

https://github.com/boomanaiden154 created https://github.com/llvm/llvm-project/pull/72817

This pass isn't used upstream anywhere and doesn't have have a create...() function, thus isn't tested anywhere. Because of this, remove it.

>From 9d3778862db3190238a70b6ae65a7ca88c739f11 Mon Sep 17 00:00:00 2001
From: Aiden Grossman <agrossman154 at yahoo.com>
Date: Sun, 19 Nov 2023 16:53:13 -0800
Subject: [PATCH] [NewPM] Remove AssumeBundleBuilderPassLegacyPass

This pass isn't used upstream anywhere and doesn't have have a
create...() function, thus isn't tested anywhere. Because of this,
remove it.
---
 llvm/include/llvm/InitializePasses.h          |  1 -
 .../Transforms/Utils/AssumeBundleBuilder.cpp  | 35 -------------------
 llvm/lib/Transforms/Utils/Utils.cpp           |  1 -
 3 files changed, 37 deletions(-)

diff --git a/llvm/include/llvm/InitializePasses.h b/llvm/include/llvm/InitializePasses.h
index da38a38b87ebc4d..7977253f7baa5b0 100644
--- a/llvm/include/llvm/InitializePasses.h
+++ b/llvm/include/llvm/InitializePasses.h
@@ -51,7 +51,6 @@ void initializeTarget(PassRegistry&);
 void initializeAAResultsWrapperPassPass(PassRegistry&);
 void initializeAlwaysInlinerLegacyPassPass(PassRegistry&);
 void initializeAssignmentTrackingAnalysisPass(PassRegistry &);
-void initializeAssumeBuilderPassLegacyPassPass(PassRegistry &);
 void initializeAssumptionCacheTrackerPass(PassRegistry&);
 void initializeAtomicExpandPass(PassRegistry&);
 void initializeBasicBlockPathCloningPass(PassRegistry &);
diff --git a/llvm/lib/Transforms/Utils/AssumeBundleBuilder.cpp b/llvm/lib/Transforms/Utils/AssumeBundleBuilder.cpp
index 45cf98e65a5af08..efa8e874b955e0a 100644
--- a/llvm/lib/Transforms/Utils/AssumeBundleBuilder.cpp
+++ b/llvm/lib/Transforms/Utils/AssumeBundleBuilder.cpp
@@ -19,7 +19,6 @@
 #include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IR/Operator.h"
-#include "llvm/InitializePasses.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/DebugCounter.h"
 #include "llvm/Transforms/Utils/Local.h"
@@ -587,37 +586,3 @@ PreservedAnalyses AssumeBuilderPass::run(Function &F,
   PA.preserveSet<CFGAnalyses>();
   return PA;
 }
-
-namespace {
-class AssumeBuilderPassLegacyPass : public FunctionPass {
-public:
-  static char ID;
-
-  AssumeBuilderPassLegacyPass() : FunctionPass(ID) {
-    initializeAssumeBuilderPassLegacyPassPass(*PassRegistry::getPassRegistry());
-  }
-  bool runOnFunction(Function &F) override {
-    AssumptionCache &AC =
-        getAnalysis<AssumptionCacheTracker>().getAssumptionCache(F);
-    DominatorTreeWrapperPass *DTWP =
-        getAnalysisIfAvailable<DominatorTreeWrapperPass>();
-    for (Instruction &I : instructions(F))
-      salvageKnowledge(&I, &AC, DTWP ? &DTWP->getDomTree() : nullptr);
-    return true;
-  }
-
-  void getAnalysisUsage(AnalysisUsage &AU) const override {
-    AU.addRequired<AssumptionCacheTracker>();
-
-    AU.setPreservesAll();
-  }
-};
-} // namespace
-
-char AssumeBuilderPassLegacyPass::ID = 0;
-
-INITIALIZE_PASS_BEGIN(AssumeBuilderPassLegacyPass, "assume-builder",
-                      "Assume Builder", false, false)
-INITIALIZE_PASS_DEPENDENCY(AssumptionCacheTracker)
-INITIALIZE_PASS_END(AssumeBuilderPassLegacyPass, "assume-builder",
-                    "Assume Builder", false, false)
diff --git a/llvm/lib/Transforms/Utils/Utils.cpp b/llvm/lib/Transforms/Utils/Utils.cpp
index 91c743f17764123..ae0ee41be1bee28 100644
--- a/llvm/lib/Transforms/Utils/Utils.cpp
+++ b/llvm/lib/Transforms/Utils/Utils.cpp
@@ -21,7 +21,6 @@ using namespace llvm;
 /// initializeTransformUtils - Initialize all passes in the TransformUtils
 /// library.
 void llvm::initializeTransformUtils(PassRegistry &Registry) {
-  initializeAssumeBuilderPassLegacyPassPass(Registry);
   initializeBreakCriticalEdgesPass(Registry);
   initializeCanonicalizeFreezeInLoopsPass(Registry);
   initializeLCSSAWrapperPassPass(Registry);