Merge branch 'dev_newpm' into dev

instrumentation/afl-llvm-pass.so.cc

@@ -45,12 +45,18 @@ typedef long double max_align_t;
 #endif
 
 #include "llvm/IR/IRBuilder.h"
+#if LLVM_VERSION_MAJOR >= 7 /* 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/BasicBlock.h"
 #include "llvm/IR/Module.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/MathExtras.h"
-#include "llvm/Transforms/IPO/PassManagerBuilder.h"
 
 #if LLVM_VERSION_MAJOR > 3 || \
     (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR > 4)
@@ -68,17 +74,26 @@ using namespace llvm;
 
 namespace {
 
+#if LLVM_VERSION_MAJOR >= 7 /* 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 >= 7 /* use new pass manager */
+  PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
+#else
   bool runOnModule(Module &M) override;
+#endif
 
  protected:
   uint32_t    ngram_size = 0;
@@ -92,7 +107,41 @@ class AFLCoverage : public ModulePass {
 
 }  // namespace
 
+#if LLVM_VERSION_MAJOR >= 7 /* 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
+       using OptimizationLevel = typename PassBuilder::OptimizationLevel;
+       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 && \
@@ -118,7 +167,13 @@ uint64_t PowerOf2Ceil(unsigned in) {
     (LLVM_VERSION_MAJOR == 4 && LLVM_VERSION_PATCH >= 1)
   #define AFL_HAVE_VECTOR_INTRINSICS 1
 #endif
+
+
+#if LLVM_VERSION_MAJOR >= 7 /* use new pass manager */
+PreservedAnalyses AFLCoverage::run(Module &M, ModuleAnalysisManager &MAM) {
+#else
 bool AFLCoverage::runOnModule(Module &M) {
+#endif
 
   LLVMContext &C = M.getContext();
 
@@ -133,6 +188,10 @@ bool AFLCoverage::runOnModule(Module &M) {
   u32             rand_seed;
   unsigned int    cur_loc = 0;
 
+#if LLVM_VERSION_MAJOR >= 7 /* 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();
@@ -970,10 +1029,15 @@ bool AFLCoverage::runOnModule(Module &M) {
 
   }
 
+#if LLVM_VERSION_MAJOR >= 7 /* use new pass manager */
+  return PA;
+#else
   return true;
+#endif
 
 }
 
+#if LLVM_VERSION_MAJOR < 7 /* use old pass manager */
 static void registerAFLPass(const PassManagerBuilder &,
                             legacy::PassManagerBase &PM) {
 
@@ -986,4 +1050,4 @@ static RegisterStandardPasses RegisterAFLPass(
 
 static RegisterStandardPasses RegisterAFLPass0(
     PassManagerBuilder::EP_EnabledOnOptLevel0, registerAFLPass);
-
+#endif

instrumentation/compare-transform-pass.so.cc

@@ -26,11 +26,17 @@
 
 #include "llvm/ADT/Statistic.h"
 #include "llvm/IR/IRBuilder.h"
+#if LLVM_MAJOR >= 7 /* 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/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"
@@ -52,28 +58,28 @@ using namespace llvm;
 
 namespace {
 
+#if LLVM_MAJOR >= 7 /* 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();
 
   }
 
-  bool runOnModule(Module &M) override;
+#if LLVM_MAJOR >= 7 /* use new pass manager */
-
+  PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
-#if LLVM_VERSION_MAJOR < 4
-  const char *getPassName() const override {
-
 #else
-  StringRef      getPassName() const override {
+  bool runOnModule(Module &M) override;
-
 #endif
-    return "transforms compare functions";
-
-  }
 
  private:
   bool transformCmps(Module &M, const bool processStrcmp,
@@ -85,7 +91,40 @@ class CompareTransform : public ModulePass {
 
 }  // namespace
 
+#if LLVM_MAJOR >= 7 /* 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
+       using OptimizationLevel = typename PassBuilder::OptimizationLevel;
+       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,
@@ -592,7 +631,11 @@ bool CompareTransform::transformCmps(Module &M, const bool processStrcmp,
 
 }
 
+#if LLVM_MAJOR >= 7 /* 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(
@@ -601,13 +644,26 @@ bool CompareTransform::runOnModule(Module &M) {
   else
     be_quiet = 1;
 
+#if LLVM_MAJOR >= 7 /* use new pass manager */
+  auto PA = PreservedAnalyses::all();
+#endif
+
   transformCmps(M, true, true, true, true, true);
   verifyModule(M);
 
+#if LLVM_MAJOR >= 7 /* use new pass manager */
+/*  if (modified) {
+    PA.abandon<XX_Manager>();
+  }*/
+
+  return PA;
+#else
   return true;
+#endif
 
 }
 
+#if LLVM_MAJOR < 7 /* use old pass manager */
 static void registerCompTransPass(const PassManagerBuilder &,
                                   legacy::PassManagerBase &PM) {
 
@@ -626,4 +682,5 @@ static RegisterStandardPasses RegisterCompTransPass0(
 static RegisterStandardPasses RegisterCompTransPassLTO(
     PassManagerBuilder::EP_FullLinkTimeOptimizationLast, registerCompTransPass);
 #endif
+#endif
 

instrumentation/split-compares-pass.so.cc

@@ -1,6 +1,7 @@
 /*
  * 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.
@@ -28,8 +29,15 @@
 
 #include "llvm/Pass.h"
 #include "llvm/Support/raw_ostream.h"
+
+#if LLVM_MAJOR >= 7
+#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/Transforms/Utils/BasicBlockUtils.h"
 #include "llvm/IR/Module.h"
 
@@ -53,27 +61,26 @@ using namespace llvm;
 
 namespace {
 
+#if LLVM_MAJOR >= 7
+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();
-
   }
 
-  bool runOnModule(Module &M) override;
+#if LLVM_MAJOR >= 7
-#if LLVM_VERSION_MAJOR >= 4
+  PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
-  StringRef getPassName() const override {
-
 #else
-  const char *getPassName() const override {
+  bool runOnModule(Module &M) override;
-
 #endif
-    return "AFL_SplitComparesTransform";
-
-  }
 
  private:
   int enableFPSplit;
@@ -162,7 +169,40 @@ class SplitComparesTransform : public ModulePass {
 
 }  // namespace
 
+#if LLVM_MAJOR >= 7
+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
+       using OptimizationLevel = typename PassBuilder::OptimizationLevel;
+       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
@@ -675,7 +715,7 @@ bool SplitComparesTransform::splitCompare(CmpInst *cmp_inst, Module &M,
   ReplaceInstWithInst(cmp_inst->getParent()->getInstList(), ii, PN);
 
   // We split the comparison into low and high. If this isn't our target
-  // bitwidth we recursivly split the low and high parts again until we have
+  // bitwidth we recursively split the low and high parts again until we have
   // target bitwidth.
   if ((bitw / 2) > target_bitwidth) {
 
@@ -1316,7 +1356,11 @@ size_t SplitComparesTransform::splitFPCompares(Module &M) {
 
 }
 
+#if LLVM_MAJOR >= 7
+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");
@@ -1327,7 +1371,7 @@ bool SplitComparesTransform::runOnModule(Module &M) {
   if ((isatty(2) && getenv("AFL_QUIET") == NULL) ||
       getenv("AFL_DEBUG") != NULL) {
 
-    errs() << "Split-compare-pass by laf.intel@gmail.com, extended by "
+    errs() << "Split-compare-newpass by laf.intel@gmail.com, extended by "
               "heiko@hexco.de (splitting icmp to "
            << target_bitwidth << " bit)\n";
 
@@ -1339,6 +1383,10 @@ bool SplitComparesTransform::runOnModule(Module &M) {
 
   }
 
+#if LLVM_MAJOR >= 7
+  auto PA = PreservedAnalyses::all();
+#endif
+
   if (enableFPSplit) {
 
     count = splitFPCompares(M);
@@ -1371,7 +1419,13 @@ bool SplitComparesTransform::runOnModule(Module &M) {
 
           auto op0 = CI->getOperand(0);
           auto op1 = CI->getOperand(1);
-          if (!op0 || !op1) { return false; }
+          if (!op0 || !op1) {
+#if LLVM_MAJOR >= 7
+            return PA;
+#else
+            return false;
+#endif
+          }
           auto iTy1 = dyn_cast<IntegerType>(op0->getType());
           if (iTy1 && isa<IntegerType>(op1->getType())) {
 
@@ -1420,10 +1474,25 @@ bool SplitComparesTransform::runOnModule(Module &M) {
 
   }
 
+  if ((isatty(2) && getenv("AFL_QUIET") == NULL) ||
+      getenv("AFL_DEBUG") != NULL) {
+    errs() << count << " comparisons found\n";
+  }
+
+#if LLVM_MAJOR >= 7
+/*  if (modified) {
+    PA.abandon<XX_Manager>();
+  }*/
+
+  return PA;
+#else
   return true;
+#endif
 
 }
 
+#if LLVM_MAJOR < 7 /* use old pass manager */
+
 static void registerSplitComparesPass(const PassManagerBuilder &,
                                       legacy::PassManagerBase &PM) {
 
@@ -1447,4 +1516,4 @@ static RegisterPass<SplitComparesTransform> X("splitcompares",
                                               "AFL++ split compares",
                                               true /* Only looks at CFG */,
                                               true /* Analysis Pass */);
-
+#endif

instrumentation/split-switches-pass.so.cc

@@ -27,11 +27,17 @@
 
 #include "llvm/ADT/Statistic.h"
 #include "llvm/IR/IRBuilder.h"
+#if LLVM_VERSION_MAJOR >= 7 /* 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/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"
@@ -54,16 +60,25 @@ using namespace llvm;
 
 namespace {
 
+#if LLVM_VERSION_MAJOR >= 7 /* 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 >= 7 /* use new pass manager */
+  PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
+#else
   bool runOnModule(Module &M) override;
 
 #if LLVM_VERSION_MAJOR >= 4
@@ -76,6 +91,7 @@ class SplitSwitchesTransform : public ModulePass {
     return "splits switch constructs";
 
   }
+#endif
 
   struct CaseExpr {
 
@@ -103,7 +119,40 @@ class SplitSwitchesTransform : public ModulePass {
 
 }  // namespace
 
+#if LLVM_VERSION_MAJOR >= 7 /* 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
+       using OptimizationLevel = typename PassBuilder::OptimizationLevel;
+       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(
@@ -415,19 +464,37 @@ bool SplitSwitchesTransform::splitSwitches(Module &M) {
 
 }
 
+#if LLVM_VERSION_MAJOR >= 7 /* 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 >= 7 /* use new pass manager */
+  auto PA = PreservedAnalyses::all();
+#endif
+
   splitSwitches(M);
   verifyModule(M);
 
+#if LLVM_VERSION_MAJOR >= 7 /* use new pass manager */
+/*  if (modified) {
+    PA.abandon<XX_Manager>();
+  }*/
+
+  return PA;
+#else
   return true;
+#endif
 
 }
 
+#if LLVM_VERSION_MAJOR < 7 /* use old pass manager */
 static void registerSplitSwitchesTransPass(const PassManagerBuilder &,
                                            legacy::PassManagerBase &PM) {
 
@@ -447,4 +514,4 @@ static RegisterStandardPasses RegisterSplitSwitchesTransPassLTO(
     PassManagerBuilder::EP_FullLinkTimeOptimizationLast,
     registerSplitSwitchesTransPass);
 #endif
-
+#endif

src/afl-cc.c

@@ -462,12 +462,17 @@ static void edit_params(u32 argc, char **argv, char **envp) {
 
       } else {
 
+#if LLVM_VERSION_MAJOR >= 7 /* use new pass manager */
+        cc_params[cc_par_cnt++] = "-fexperimental-new-pass-manager";
+        cc_params[cc_par_cnt++] =
+            alloc_printf("-fpass-plugin=%s/split-switches-pass.so", obj_path);
+#else
         cc_params[cc_par_cnt++] = "-Xclang";
         cc_params[cc_par_cnt++] = "-load";
         cc_params[cc_par_cnt++] = "-Xclang";
         cc_params[cc_par_cnt++] =
             alloc_printf("%s/split-switches-pass.so", obj_path);
-
+#endif
       }
 
     }
@@ -482,11 +487,17 @@ static void edit_params(u32 argc, char **argv, char **envp) {
 
       } else {
 
+#if LLVM_VERSION_MAJOR >= 7 /* use new pass manager */
+        cc_params[cc_par_cnt++] = "-fexperimental-new-pass-manager";
+        cc_params[cc_par_cnt++] =
+            alloc_printf("-fpass-plugin=%s/compare-transform-pass.so", obj_path);
+#else
         cc_params[cc_par_cnt++] = "-Xclang";
         cc_params[cc_par_cnt++] = "-load";
         cc_params[cc_par_cnt++] = "-Xclang";
         cc_params[cc_par_cnt++] =
             alloc_printf("%s/compare-transform-pass.so", obj_path);
+#endif
 
       }
 
@@ -502,11 +513,18 @@ static void edit_params(u32 argc, char **argv, char **envp) {
 
       } else {
 
+#if LLVM_MAJOR >= 7
+        cc_params[cc_par_cnt++] = "-fexperimental-new-pass-manager";
+        cc_params[cc_par_cnt++] =
+            alloc_printf("-fpass-plugin=%s/split-compares-pass.so", obj_path);
+//        cc_params[cc_par_cnt++] = "-fno-experimental-new-pass-manager";
+#else
         cc_params[cc_par_cnt++] = "-Xclang";
         cc_params[cc_par_cnt++] = "-load";
         cc_params[cc_par_cnt++] = "-Xclang";
         cc_params[cc_par_cnt++] =
             alloc_printf("%s/split-compares-pass.so", obj_path);
+#endif
 
       }
 
@@ -536,11 +554,17 @@ static void edit_params(u32 argc, char **argv, char **envp) {
             alloc_printf("%s/cmplog-switches-pass.so", obj_path);
 
         // reuse split switches from laf
+#if LLVM_MAJOR >= 7
+        cc_params[cc_par_cnt++] = "-fexperimental-new-pass-manager";
+        cc_params[cc_par_cnt++] =
+            alloc_printf("-fpass-plugin=%s/split-switches-pass.so", obj_path);
+#else
         cc_params[cc_par_cnt++] = "-Xclang";
         cc_params[cc_par_cnt++] = "-load";
         cc_params[cc_par_cnt++] = "-Xclang";
         cc_params[cc_par_cnt++] =
             alloc_printf("%s/split-switches-pass.so", obj_path);
+#endif
 
       }
 
@@ -630,11 +654,15 @@ static void edit_params(u32 argc, char **argv, char **envp) {
 
       } else {
 
+#if LLVM_MAJOR >= 7
+        cc_params[cc_par_cnt++] = "-fexperimental-new-pass-manager";
+        cc_params[cc_par_cnt++] = alloc_printf("-fpass-plugin=%s/afl-llvm-pass.so", obj_path);
+#else
         cc_params[cc_par_cnt++] = "-Xclang";
         cc_params[cc_par_cnt++] = "-load";
         cc_params[cc_par_cnt++] = "-Xclang";
         cc_params[cc_par_cnt++] = alloc_printf("%s/afl-llvm-pass.so", obj_path);
-
+#endif
       }
 
     }