make new pass manager interface compiler version dependent (>=7)

1 files changed, 32 insertions, 6 deletions

diff --git a/instrumentation/compare-transform-pass.so.cc b/instrumentation/compare-transform-pass.so.cc
index ce8efaa7..3c975fe8 100644
--- a/instrumentation/compare-transform-pass.so.cc
+++ b/instrumentation/compare-transform-pass.so.cc
@@ -26,14 +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"
-//#include "llvm/IR/LegacyPassManager.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"
@@ -55,16 +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();
 
   }
 
+#if LLVM_MAJOR >= 7 /* use new pass manager */
   PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
+#else
+  bool runOnModule(Module &M) override;
+#endif
 
  private:
   bool transformCmps(Module &M, const bool processStrcmp,
@@ -76,6 +91,7 @@ class CompareTransform : public PassInfoMixin<CompareTransform> {
 
 }  // namespace
 
+#if LLVM_MAJOR >= 7 /* use new pass manager */
 extern "C" ::llvm::PassPluginLibraryInfo LLVM_ATTRIBUTE_WEAK
 llvmGetPassPluginInfo() {
   return {
@@ -106,7 +122,9 @@ llvmGetPassPluginInfo() {
     }
   };
 }
-
+#else
+char CompareTransform::ID = 0;
+#endif
 
 bool CompareTransform::transformCmps(Module &M, const bool processStrcmp,
                                      const bool processMemcmp,
@@ -613,7 +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(
@@ -622,22 +644,26 @@ PreservedAnalyses CompareTransform::run(Module &M, ModuleAnalysisManager &MAM) {
   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;
-
-//  return true;
+#else
+  return true;
+#endif
 
 }
 
-#if 0
+#if LLVM_MAJOR < 7 /* use old pass manager */
 static void registerCompTransPass(const PassManagerBuilder &,
                                   legacy::PassManagerBase &PM) {