diff --git a/llvm/lib/Analysis/ACPOBWModel.cpp b/llvm/lib/Analysis/ACPOBWModel.cpp
index 28b6ab41be3bb30909e4a853b17bd945f00634de..4adde731b265dcd1660c4206797f30ca64452f87 100644
--- a/llvm/lib/Analysis/ACPOBWModel.cpp
+++ b/llvm/lib/Analysis/ACPOBWModel.cpp
@@ -38,7 +38,7 @@ std::unique_ptr<ACPOAdvice> ACPOBWModel::getAdviceML() {
   std::shared_ptr<ACPOMLInterface> MLIF = getMLIF();
   // Generate result.
   std::unique_ptr<ACPOAdvice> Advice = std::make_unique<ACPOAdvice>();
-  assert(MLIR != nullptr);
+  assert(MLIF != nullptr);
   if (!MLIF->loadModel("") ||
       !MLIF->initializeFeatures("BW", CustomFeatureValues)) {
     outs() << "Model not loaded or features not initialized. "
diff --git a/llvm/lib/Transforms/Instrumentation/AI4CAnalysis.cpp b/llvm/lib/Transforms/Instrumentation/AI4CAnalysis.cpp
index b74cb4a9fcfe027ac8e5c9a2ae7a6aa32b87eea7..e63b4e05b83e1285a0192ac0b329c8e8df71fdc1 100644
--- a/llvm/lib/Transforms/Instrumentation/AI4CAnalysis.cpp
+++ b/llvm/lib/Transforms/Instrumentation/AI4CAnalysis.cpp
@@ -103,7 +103,7 @@ static bool skipAnalysis(const Function &F) {
 
 PreservedAnalyses  AI4CAnalysis::run(Module &M, ModuleAnalysisManager &MAM) {
   if (EnableAI4CFH) {
-    LLVM_DEBUG(dbgs << "Annotate function hotness by ACPO: ");
+    LLVM_DEBUG(dbgs() << "Annotate function hotness by ACPO: ");
     // Initialize Feature Data Collector
     std::error_code EC;
     raw_fd_ostream RawOS(AI4CDumpFile.getValue(), EC, sys::fs::CD_OpenAlways,
@@ -128,7 +128,7 @@ PreservedAnalyses  AI4CAnalysis::run(Module &M, ModuleAnalysisManager &MAM) {
 
     for (auto &F : HotFunctions) {
       F->addFnAttr(Attribute::AlwaysInline);
-      LLVM_DEBUG(dbgs << "Set inline attribute to function " << F->getName()
+      LLVM_DEBUG(dbgs() << "Set inline attribute to function " << F->getName()
                       << "\n");
     }
     for (auto &F : ColdFunctions) {
diff --git a/llvm/lib/Transforms/Utils/ACPOBranchWeightModel.cpp b/llvm/lib/Transforms/Utils/ACPOBranchWeightModel.cpp
index b54ab86637578d556dba901712bdd48673348ffa..3a844202b9373dda5b6a427f8f867e73f005a1ac 100644
--- a/llvm/lib/Transforms/Utils/ACPOBranchWeightModel.cpp
+++ b/llvm/lib/Transforms/Utils/ACPOBranchWeightModel.cpp
@@ -192,7 +192,7 @@ bool ACPOBranchWeightModelPass::applyBranchWeightUsingACPOModel(Module &M, Modul
           continue;
         }
         TI->setMetadata(LLVMContext::MD_prof, MDWeight);
-        LLVM_DEBUG(dbgs() << "Instruction after adding metadata" << *TI < "\n");
+        LLVM_DEBUG(dbgs() << "Instruction after adding metadata" << *TI << "\n");
         Changed = true;
       }
     }