Merge branch 'dev' into newpm2

5 files changed, 37 insertions, 407 deletions

diff --git a/instrumentation/afl-llvm-pass.so.cc b/instrumentation/afl-llvm-pass.so.cc
index be8099bb..6419cd1d 100644
--- a/instrumentation/afl-llvm-pass.so.cc
+++ b/instrumentation/afl-llvm-pass.so.cc
@@ -46,21 +46,12 @@ typedef long double max_align_t;
 
 #include "llvm/IR/IRBuilder.h"
 #include "llvm/Pass.h"
-#if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
-  #include "llvm/Passes/PassPlugin.h"
-  #include "llvm/Passes/PassBuilder.h"
-  #include "llvm/IR/PassManager.h"
-#else
-  #include "llvm/IR/LegacyPassManager.h"
-  #include "llvm/Transforms/IPO/PassManagerBuilder.h"
-#endif
+#include "llvm/IR/LegacyPassManager.h"
 #include "llvm/IR/BasicBlock.h"
 #include "llvm/IR/Module.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/MathExtras.h"
-#if LLVM_VERSION_MAJOR >= 14                /* how about stable interfaces? */
-  #include "llvm/Passes/OptimizationLevel.h"
-#endif
+#include "llvm/Transforms/IPO/PassManagerBuilder.h"
 
 #if LLVM_VERSION_MAJOR >= 4 || \
     (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR > 4)
@@ -78,30 +69,17 @@ using namespace llvm;
 
 namespace {
 
-#if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
-class AFLCoverage : public PassInfoMixin<AFLCoverage> {
-
- public:
-  AFLCoverage() {
-
-#else
 class AFLCoverage : public ModulePass {
 
  public:
   static char ID;
   AFLCoverage() : ModulePass(ID) {
 
-#endif
-
     initInstrumentList();
 
   }
 
-#if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
-  PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
-#else
   bool runOnModule(Module &M) override;
-#endif
 
  protected:
   uint32_t    ngram_size = 0;
@@ -115,55 +93,7 @@ class AFLCoverage : public ModulePass {
 
 }  // namespace
 
-#if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
-extern "C" ::llvm::PassPluginLibraryInfo LLVM_ATTRIBUTE_WEAK
-llvmGetPassPluginInfo() {
-
-  return {LLVM_PLUGIN_API_VERSION, "AFLCoverage", "v0.1",
-          /* lambda to insert our pass into the pass pipeline. */
-          [](PassBuilder &PB) {
-
-  #if 1
-    #if LLVM_VERSION_MAJOR <= 13
-            using OptimizationLevel = typename PassBuilder::OptimizationLevel;
-    #endif
-            PB.registerOptimizerLastEPCallback(
-                [](ModulePassManager &MPM, OptimizationLevel OL) {
-
-                  MPM.addPass(AFLCoverage());
-
-                });
-
-  /* TODO LTO registration */
-  #else
-            using PipelineElement = typename PassBuilder::PipelineElement;
-            PB.registerPipelineParsingCallback([](StringRef          Name,
-                                                  ModulePassManager &MPM,
-                                                  ArrayRef<PipelineElement>) {
-
-              if (Name == "AFLCoverage") {
-
-                MPM.addPass(AFLCoverage());
-                return true;
-
-              } else {
-
-                return false;
-
-              }
-
-            });
-
-  #endif
-
-          }};
-
-}
-
-#else
-
 char AFLCoverage::ID = 0;
-#endif
 
 /* needed up to 3.9.0 */
 #if LLVM_VERSION_MAJOR == 3 && \
@@ -189,15 +119,8 @@ uint64_t PowerOf2Ceil(unsigned in) {
     (LLVM_VERSION_MAJOR == 4 && LLVM_VERSION_PATCH >= 1)
   #define AFL_HAVE_VECTOR_INTRINSICS 1
 #endif
-
-#if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
-PreservedAnalyses AFLCoverage::run(Module &M, ModuleAnalysisManager &MAM) {
-
-#else
 bool AFLCoverage::runOnModule(Module &M) {
 
-#endif
-
   LLVMContext &C = M.getContext();
 
   IntegerType *Int8Ty = IntegerType::getInt8Ty(C);
@@ -211,10 +134,6 @@ bool AFLCoverage::runOnModule(Module &M) {
   u32             rand_seed;
   unsigned int    cur_loc = 0;
 
-#if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
-  auto PA = PreservedAnalyses::all();
-#endif
-
   /* Setup random() so we get Actually Random(TM) outputs from AFL_R() */
   gettimeofday(&tv, &tz);
   rand_seed = tv.tv_sec ^ tv.tv_usec ^ getpid();
@@ -1079,15 +998,10 @@ bool AFLCoverage::runOnModule(Module &M) {
 
   }
 
-#if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
-  return PA;
-#else
   return true;
-#endif
 
 }
 
-#if LLVM_VERSION_MAJOR < 11                         /* use old pass manager */
 static void registerAFLPass(const PassManagerBuilder &,
                             legacy::PassManagerBase &PM) {
 
@@ -1100,5 +1014,4 @@ static RegisterStandardPasses RegisterAFLPass(
 
 static RegisterStandardPasses RegisterAFLPass0(
     PassManagerBuilder::EP_EnabledOnOptLevel0, registerAFLPass);
-#endif
 
diff --git a/instrumentation/cmplog-instructions-pass.cc b/instrumentation/cmplog-instructions-pass.cc
index 5bd98072..85dec437 100644
--- a/instrumentation/cmplog-instructions-pass.cc
+++ b/instrumentation/cmplog-instructions-pass.cc
@@ -28,6 +28,7 @@
 #include "llvm/Config/llvm-config.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/LegacyPassManager.h"
 #include "llvm/IR/Module.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
@@ -37,6 +38,7 @@
   #include "llvm/IR/PassManager.h"
 #else
   #include "llvm/IR/LegacyPassManager.h"
+  #include "llvm/Transforms/IPO/PassManagerBuilder.h"
 #endif
 #include "llvm/Transforms/Utils/BasicBlockUtils.h"
 #include "llvm/Pass.h"
@@ -136,7 +138,7 @@ llvmGetPassPluginInfo() {
 #else
 char CmpLogInstructions::ID = 0;
 #endif
-
+  
 template <class Iterator>
 Iterator Unique(Iterator first, Iterator last) {
 
@@ -684,10 +686,10 @@ bool CmpLogInstructions::runOnModule(Module &M) {
 #else
   return true;
 #endif
-
+  
 }
 
-#if LLVM_MAJOR < 11                                 /* use old pass manager */
+#if LLVM_MAJOR < 11                                /* use old pass manager */
 static void registerCmpLogInstructionsPass(const PassManagerBuilder &,
                                            legacy::PassManagerBase &PM) {
 
@@ -708,4 +710,3 @@ static RegisterStandardPasses RegisterCmpLogInstructionsPassLTO(
     registerCmpLogInstructionsPass);
   #endif
 #endif
-
diff --git a/instrumentation/compare-transform-pass.so.cc b/instrumentation/compare-transform-pass.so.cc
index 34c88735..9a4e4f00 100644
--- a/instrumentation/compare-transform-pass.so.cc
+++ b/instrumentation/compare-transform-pass.so.cc
@@ -26,23 +26,14 @@
 
 #include "llvm/ADT/Statistic.h"
 #include "llvm/IR/IRBuilder.h"
-#if LLVM_MAJOR >= 11                                /* use new pass manager */
-  #include "llvm/Passes/PassPlugin.h"
-  #include "llvm/Passes/PassBuilder.h"
-  #include "llvm/IR/PassManager.h"
-#else
-  #include "llvm/IR/LegacyPassManager.h"
-  #include "llvm/Transforms/IPO/PassManagerBuilder.h"
-#endif
+#include "llvm/IR/LegacyPassManager.h"
 #include "llvm/IR/Module.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
+#include "llvm/Transforms/IPO/PassManagerBuilder.h"
 #include "llvm/Transforms/Utils/BasicBlockUtils.h"
 #include "llvm/Pass.h"
 #include "llvm/Analysis/ValueTracking.h"
-#if LLVM_VERSION_MAJOR >= 14                /* how about stable interfaces? */
-  #include "llvm/Passes/OptimizationLevel.h"
-#endif
 
 #if LLVM_VERSION_MAJOR >= 4 || \
     (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR > 4)
@@ -61,21 +52,12 @@ using namespace llvm;
 
 namespace {
 
-#if LLVM_MAJOR >= 11                                /* use new pass manager */
-class CompareTransform : public PassInfoMixin<CompareTransform> {
-
- public:
-  CompareTransform() {
-
-#else
 class CompareTransform : public ModulePass {
 
  public:
   static char ID;
   CompareTransform() : ModulePass(ID) {
 
-#endif
-
     initInstrumentList();
 
   }
@@ -88,18 +70,17 @@ class CompareTransform : public ModulePass {
   const char *getPassName() const override {
 
   #endif
-
-    return "cmplog transform";
+    return "transforms compare functions";
 
   }
 
 #endif
 
-#if LLVM_MAJOR >= 11                                /* use new pass manager */
-  PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
-#else
+  //#if LLVM_MAJOR >= 11                             /* use new pass manager */
+  //  PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
+  //#else
   bool runOnModule(Module &M) override;
-#endif
+  //#endif
 
  private:
   bool transformCmps(Module &M, const bool processStrcmp,
@@ -111,54 +92,7 @@ class CompareTransform : public ModulePass {
 
 }  // namespace
 
-#if LLVM_MAJOR >= 11                                /* use new pass manager */
-extern "C" ::llvm::PassPluginLibraryInfo LLVM_ATTRIBUTE_WEAK
-llvmGetPassPluginInfo() {
-
-  return {LLVM_PLUGIN_API_VERSION, "comparetransform", "v0.1",
-          /* lambda to insert our pass into the pass pipeline. */
-          [](PassBuilder &PB) {
-
-  #if 1
-    #if LLVM_VERSION_MAJOR <= 13
-            using OptimizationLevel = typename PassBuilder::OptimizationLevel;
-    #endif
-            PB.registerOptimizerLastEPCallback(
-                [](ModulePassManager &MPM, OptimizationLevel OL) {
-
-                  MPM.addPass(CompareTransform());
-
-                });
-
-  /* TODO LTO registration */
-  #else
-            using PipelineElement = typename PassBuilder::PipelineElement;
-            PB.registerPipelineParsingCallback([](StringRef          Name,
-                                                  ModulePassManager &MPM,
-                                                  ArrayRef<PipelineElement>) {
-
-              if (Name == "comparetransform") {
-
-                MPM.addPass(CompareTransform());
-                return true;
-
-              } else {
-
-                return false;
-
-              }
-
-            });
-
-  #endif
-
-          }};
-
-}
-
-#else
 char CompareTransform::ID = 0;
-#endif
 
 bool CompareTransform::transformCmps(Module &M, const bool processStrcmp,
                                      const bool processMemcmp,
@@ -458,7 +392,6 @@ bool CompareTransform::transformCmps(Module &M, const bool processStrcmp,
     bool        isCaseInsensitive = false;
     bool        needs_null = false;
     Function *  Callee = callInst->getCalledFunction();
-
     if (Callee) {
 
       if (!Callee->getName().compare("memcmp") ||
@@ -716,14 +649,8 @@ bool CompareTransform::transformCmps(Module &M, const bool processStrcmp,
 
 }
 
-#if LLVM_MAJOR >= 11                                /* use new pass manager */
-PreservedAnalyses CompareTransform::run(Module &M, ModuleAnalysisManager &MAM) {
-
-#else
 bool CompareTransform::runOnModule(Module &M) {
 
-#endif
-
   if ((isatty(2) && getenv("AFL_QUIET") == NULL) || getenv("AFL_DEBUG") != NULL)
     printf(
         "Running compare-transform-pass by laf.intel@gmail.com, extended by "
@@ -731,28 +658,13 @@ bool CompareTransform::runOnModule(Module &M) {
   else
     be_quiet = 1;
 
-#if LLVM_MAJOR >= 11                                /* use new pass manager */
-  auto PA = PreservedAnalyses::all();
-#endif
-
   transformCmps(M, true, true, true, true, true);
   verifyModule(M);
 
-#if LLVM_MAJOR >= 11                                /* use new pass manager */
-                     /*  if (modified) {
-                   
-                         PA.abandon<XX_Manager>();
-                   
-                       }*/
-
-  return PA;
-#else
   return true;
-#endif
 
 }
 
-#if LLVM_MAJOR < 11                                 /* use old pass manager */
 static void registerCompTransPass(const PassManagerBuilder &,
                                   legacy::PassManagerBase &PM) {
 
@@ -767,9 +679,8 @@ static RegisterStandardPasses RegisterCompTransPass(
 static RegisterStandardPasses RegisterCompTransPass0(
     PassManagerBuilder::EP_EnabledOnOptLevel0, registerCompTransPass);
 
-  #if LLVM_VERSION_MAJOR >= 11
+#if LLVM_VERSION_MAJOR >= 11
 static RegisterStandardPasses RegisterCompTransPassLTO(
     PassManagerBuilder::EP_FullLinkTimeOptimizationLast, registerCompTransPass);
-  #endif
 #endif
 
diff --git a/instrumentation/split-compares-pass.so.cc b/instrumentation/split-compares-pass.so.cc
index d7bb7aba..0f00fa96 100644
--- a/instrumentation/split-compares-pass.so.cc
+++ b/instrumentation/split-compares-pass.so.cc
@@ -1,7 +1,6 @@
 /*
  * Copyright 2016 laf-intel
  * extended for floating point by Heiko Eißfeldt
- * adapted to new pass manager by Heiko Eißfeldt
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -29,20 +28,10 @@
 
 #include "llvm/Pass.h"
 #include "llvm/Support/raw_ostream.h"
-
-#if LLVM_MAJOR >= 11
-  #include "llvm/Passes/PassPlugin.h"
-  #include "llvm/Passes/PassBuilder.h"
-  #include "llvm/IR/PassManager.h"
-#else
-  #include "llvm/IR/LegacyPassManager.h"
-  #include "llvm/Transforms/IPO/PassManagerBuilder.h"
-#endif
+#include "llvm/IR/LegacyPassManager.h"
+#include "llvm/Transforms/IPO/PassManagerBuilder.h"
 #include "llvm/Transforms/Utils/BasicBlockUtils.h"
 #include "llvm/IR/Module.h"
-#if LLVM_VERSION_MAJOR >= 14                /* how about stable interfaces? */
-  #include "llvm/Passes/OptimizationLevel.h"
-#endif
 
 #include "llvm/IR/IRBuilder.h"
 #if LLVM_VERSION_MAJOR >= 4 || \
@@ -64,31 +53,27 @@ using namespace llvm;
 
 namespace {
 
-#if LLVM_MAJOR >= 11
-class SplitComparesTransform : public PassInfoMixin<SplitComparesTransform> {
-
- public:
-  //  static char ID;
-  SplitComparesTransform() : enableFPSplit(0) {
-
-#else
 class SplitComparesTransform : public ModulePass {
 
  public:
   static char ID;
   SplitComparesTransform() : ModulePass(ID), enableFPSplit(0) {
 
-#endif
-
     initInstrumentList();
 
   }
 
-#if LLVM_MAJOR >= 11
-  PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
-#else
   bool runOnModule(Module &M) override;
+#if LLVM_VERSION_MAJOR >= 4
+  StringRef getPassName() const override {
+
+#else
+  const char *getPassName() const override {
+
 #endif
+    return "AFL_SplitComparesTransform";
+
+  }
 
  private:
   int enableFPSplit;
@@ -177,54 +162,7 @@ class SplitComparesTransform : public ModulePass {
 
 }  // namespace
 
-#if LLVM_MAJOR >= 11
-extern "C" ::llvm::PassPluginLibraryInfo LLVM_ATTRIBUTE_WEAK
-llvmGetPassPluginInfo() {
-
-  return {LLVM_PLUGIN_API_VERSION, "splitcompares", "v0.1",
-          /* lambda to insert our pass into the pass pipeline. */
-          [](PassBuilder &PB) {
-
-  #if 1
-    #if LLVM_VERSION_MAJOR <= 13
-            using OptimizationLevel = typename PassBuilder::OptimizationLevel;
-    #endif
-            PB.registerOptimizerLastEPCallback(
-                [](ModulePassManager &MPM, OptimizationLevel OL) {
-
-                  MPM.addPass(SplitComparesTransform());
-
-                });
-
-  /* TODO LTO registration */
-  #else
-            using PipelineElement = typename PassBuilder::PipelineElement;
-            PB.registerPipelineParsingCallback([](StringRef          Name,
-                                                  ModulePassManager &MPM,
-                                                  ArrayRef<PipelineElement>) {
-
-              if (Name == "splitcompares") {
-
-                MPM.addPass(SplitComparesTransform());
-                return true;
-
-              } else {
-
-                return false;
-
-              }
-
-            });
-
-  #endif
-
-          }};
-
-}
-
-#else
 char SplitComparesTransform::ID = 0;
-#endif
 
 /// This function splits FCMP instructions with xGE or xLE predicates into two
 /// FCMP instructions with predicate xGT or xLT and EQ
@@ -1483,15 +1421,8 @@ size_t SplitComparesTransform::splitFPCompares(Module &M) {
 
 }
 
-#if LLVM_MAJOR >= 11
-PreservedAnalyses SplitComparesTransform::run(Module &               M,
-                                              ModuleAnalysisManager &MAM) {
-
-#else
 bool SplitComparesTransform::runOnModule(Module &M) {
 
-#endif
-
   char *bitw_env = getenv("AFL_LLVM_LAF_SPLIT_COMPARES_BITW");
   if (!bitw_env) bitw_env = getenv("LAF_SPLIT_COMPARES_BITW");
   if (bitw_env) { target_bitwidth = atoi(bitw_env); }
@@ -1501,7 +1432,7 @@ bool SplitComparesTransform::runOnModule(Module &M) {
   if ((isatty(2) && getenv("AFL_QUIET") == NULL) ||
       getenv("AFL_DEBUG") != NULL) {
 
-    errs() << "Split-compare-newpass by laf.intel@gmail.com, extended by "
+    errs() << "Split-compare-pass by laf.intel@gmail.com, extended by "
               "heiko@hexco.de (splitting icmp to "
            << target_bitwidth << " bit)\n";
 
@@ -1513,10 +1444,6 @@ bool SplitComparesTransform::runOnModule(Module &M) {
 
   }
 
-#if LLVM_MAJOR >= 11
-  auto PA = PreservedAnalyses::all();
-#endif
-
   if (enableFPSplit) {
 
     simplifyFPCompares(M);
@@ -1546,16 +1473,7 @@ bool SplitComparesTransform::runOnModule(Module &M) {
 
           auto op0 = CI->getOperand(0);
           auto op1 = CI->getOperand(1);
-          if (!op0 || !op1) {
-
-#if LLVM_MAJOR >= 11
-            return PA;
-#else
-            return false;
-#endif
-
-          }
-
+          if (!op0 || !op1) { return false; }
           auto iTy1 = dyn_cast<IntegerType>(op0->getType());
           if (iTy1 && isa<IntegerType>(op1->getType())) {
 
@@ -1604,29 +1522,10 @@ bool SplitComparesTransform::runOnModule(Module &M) {
 
   }
 
-  if ((isatty(2) && getenv("AFL_QUIET") == NULL) ||
-      getenv("AFL_DEBUG") != NULL) {
-
-    errs() << count << " comparisons found\n";
-
-  }
-
-#if LLVM_MAJOR >= 11
-  /*  if (modified) {
-
-      PA.abandon<XX_Manager>();
-
-    }*/
-
-  return PA;
-#else
   return true;
-#endif
 
 }
 
-#if LLVM_MAJOR < 11                                 /* use old pass manager */
-
 static void registerSplitComparesPass(const PassManagerBuilder &,
                                       legacy::PassManagerBase &PM) {
 
@@ -1640,15 +1539,14 @@ static RegisterStandardPasses RegisterSplitComparesPass(
 static RegisterStandardPasses RegisterSplitComparesTransPass0(
     PassManagerBuilder::EP_EnabledOnOptLevel0, registerSplitComparesPass);
 
-  #if LLVM_VERSION_MAJOR >= 11
+#if LLVM_VERSION_MAJOR >= 11
 static RegisterStandardPasses RegisterSplitComparesTransPassLTO(
     PassManagerBuilder::EP_FullLinkTimeOptimizationLast,
     registerSplitComparesPass);
-  #endif
+#endif
 
 static RegisterPass<SplitComparesTransform> X("splitcompares",
                                               "AFL++ split compares",
                                               true /* Only looks at CFG */,
                                               true /* Analysis Pass */);
-#endif
 
diff --git a/instrumentation/split-switches-pass.so.cc b/instrumentation/split-switches-pass.so.cc
index 96e01a8b..9f9e7eca 100644
--- a/instrumentation/split-switches-pass.so.cc
+++ b/instrumentation/split-switches-pass.so.cc
@@ -27,23 +27,14 @@
 
 #include "llvm/ADT/Statistic.h"
 #include "llvm/IR/IRBuilder.h"
-#if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
-  #include "llvm/Passes/PassPlugin.h"
-  #include "llvm/Passes/PassBuilder.h"
-  #include "llvm/IR/PassManager.h"
-#else
-  #include "llvm/IR/LegacyPassManager.h"
-  #include "llvm/Transforms/IPO/PassManagerBuilder.h"
-#endif
+#include "llvm/IR/LegacyPassManager.h"
 #include "llvm/IR/Module.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
+#include "llvm/Transforms/IPO/PassManagerBuilder.h"
 #include "llvm/Transforms/Utils/BasicBlockUtils.h"
 #include "llvm/Pass.h"
 #include "llvm/Analysis/ValueTracking.h"
-#if LLVM_VERSION_MAJOR >= 14                /* how about stable interfaces? */
-  #include "llvm/Passes/OptimizationLevel.h"
-#endif
 
 #include "llvm/IR/IRBuilder.h"
 #if LLVM_VERSION_MAJOR >= 4 || \
@@ -63,42 +54,29 @@ using namespace llvm;
 
 namespace {
 
-#if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
-class SplitSwitchesTransform : public PassInfoMixin<SplitSwitchesTransform> {
-
- public:
-  SplitSwitchesTransform() {
-
-#else
 class SplitSwitchesTransform : public ModulePass {
 
  public:
   static char ID;
   SplitSwitchesTransform() : ModulePass(ID) {
 
-#endif
     initInstrumentList();
 
   }
 
-#if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
-  PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
-#else
-  bool      runOnModule(Module &M) override;
+  bool runOnModule(Module &M) override;
 
-  #if LLVM_VERSION_MAJOR >= 4
+#if LLVM_VERSION_MAJOR >= 4
   StringRef getPassName() const override {
 
-  #else
+#else
   const char *getPassName() const override {
 
-  #endif
+#endif
     return "splits switch constructs";
 
   }
 
-#endif
-
   struct CaseExpr {
 
     ConstantInt *Val;
@@ -125,54 +103,7 @@ class SplitSwitchesTransform : public ModulePass {
 
 }  // namespace
 
-#if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
-extern "C" ::llvm::PassPluginLibraryInfo LLVM_ATTRIBUTE_WEAK
-llvmGetPassPluginInfo() {
-
-  return {LLVM_PLUGIN_API_VERSION, "splitswitches", "v0.1",
-          /* lambda to insert our pass into the pass pipeline. */
-          [](PassBuilder &PB) {
-
-  #if 1
-    #if LLVM_VERSION_MAJOR <= 13
-            using OptimizationLevel = typename PassBuilder::OptimizationLevel;
-    #endif
-            PB.registerOptimizerLastEPCallback(
-                [](ModulePassManager &MPM, OptimizationLevel OL) {
-
-                  MPM.addPass(SplitSwitchesTransform());
-
-                });
-
-  /* TODO LTO registration */
-  #else
-            using PipelineElement = typename PassBuilder::PipelineElement;
-            PB.registerPipelineParsingCallback([](StringRef          Name,
-                                                  ModulePassManager &MPM,
-                                                  ArrayRef<PipelineElement>) {
-
-              if (Name == "splitswitches") {
-
-                MPM.addPass(SplitSwitchesTransform());
-                return true;
-
-              } else {
-
-                return false;
-
-              }
-
-            });
-
-  #endif
-
-          }};
-
-}
-
-#else
 char SplitSwitchesTransform::ID = 0;
-#endif
 
 /* switchConvert - Transform simple list of Cases into list of CaseRange's */
 BasicBlock *SplitSwitchesTransform::switchConvert(
@@ -482,42 +413,19 @@ bool SplitSwitchesTransform::splitSwitches(Module &M) {
 
 }
 
-#if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
-PreservedAnalyses SplitSwitchesTransform::run(Module &               M,
-                                              ModuleAnalysisManager &MAM) {
-
-#else
 bool SplitSwitchesTransform::runOnModule(Module &M) {
 
-#endif
-
   if ((isatty(2) && getenv("AFL_QUIET") == NULL) || getenv("AFL_DEBUG") != NULL)
     printf("Running split-switches-pass by laf.intel@gmail.com\n");
   else
     be_quiet = 1;
-
-#if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
-  auto PA = PreservedAnalyses::all();
-#endif
-
   splitSwitches(M);
   verifyModule(M);
 
-#if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
-                             /*  if (modified) {
-                           
-                                 PA.abandon<XX_Manager>();
-                           
-                               }*/
-
-  return PA;
-#else
   return true;
-#endif
 
 }
 
-#if LLVM_VERSION_MAJOR < 11                         /* use old pass manager */
 static void registerSplitSwitchesTransPass(const PassManagerBuilder &,
                                            legacy::PassManagerBase &PM) {
 
@@ -532,10 +440,9 @@ static RegisterStandardPasses RegisterSplitSwitchesTransPass(
 static RegisterStandardPasses RegisterSplitSwitchesTransPass0(
     PassManagerBuilder::EP_EnabledOnOptLevel0, registerSplitSwitchesTransPass);
 
-  #if LLVM_VERSION_MAJOR >= 11
+#if LLVM_VERSION_MAJOR >= 11
 static RegisterStandardPasses RegisterSplitSwitchesTransPassLTO(
     PassManagerBuilder::EP_FullLinkTimeOptimizationLast,
     registerSplitSwitchesTransPass);
-  #endif
 #endif