diff --git a/llvm/include/llvm/Passes/PassBuilder.h b/llvm/include/llvm/Passes/PassBuilder.h
--- a/llvm/include/llvm/Passes/PassBuilder.h
+++ b/llvm/include/llvm/Passes/PassBuilder.h
@@ -587,7 +587,7 @@
   /// pipeline. This does not apply to 'backend' compiles (LTO and ThinLTO
   /// link-time pipelines).
   void registerPipelineStartEPCallback(
-      const std::function<void(ModulePassManager &)> &C) {
+      const std::function<void(ModulePassManager &, OptimizationLevel)> &C) {
     PipelineStartEPCallbacks.push_back(C);
   }
 
@@ -722,7 +722,7 @@
   SmallVector<std::function<void(ModulePassManager &, OptimizationLevel)>, 2>
       OptimizerLastEPCallbacks;
   // Module callbacks
-  SmallVector<std::function<void(ModulePassManager &)>, 2>
+  SmallVector<std::function<void(ModulePassManager &, OptimizationLevel)>, 2>
       PipelineStartEPCallbacks;
   SmallVector<std::function<void(ModuleAnalysisManager &)>, 2>
       ModuleAnalysisRegistrationCallbacks;
diff --git a/llvm/lib/Passes/PassBuilder.cpp b/llvm/lib/Passes/PassBuilder.cpp
--- a/llvm/lib/Passes/PassBuilder.cpp
+++ b/llvm/lib/Passes/PassBuilder.cpp
@@ -1319,7 +1319,7 @@
 
   // Apply module pipeline start EP callback.
   for (auto &C : PipelineStartEPCallbacks)
-    C(MPM);
+    C(MPM, Level);
 
   if (PGOOpt && PGOOpt->SamplePGOSupport)
     MPM.addPass(createModuleToFunctionPassAdaptor(AddDiscriminatorsPass()));
@@ -1348,7 +1348,7 @@
 
   // Apply module pipeline start EP callback.
   for (auto &C : PipelineStartEPCallbacks)
-    C(MPM);
+    C(MPM, Level);
 
   // If we are planning to perform ThinLTO later, we don't bloat the code with
   // unrolling/vectorization/... now. Just simplify the module as much as we
diff --git a/llvm/lib/Target/BPF/BPFTargetMachine.cpp b/llvm/lib/Target/BPF/BPFTargetMachine.cpp
--- a/llvm/lib/Target/BPF/BPFTargetMachine.cpp
+++ b/llvm/lib/Target/BPF/BPFTargetMachine.cpp
@@ -125,12 +125,13 @@
 
 void BPFTargetMachine::registerPassBuilderCallbacks(PassBuilder &PB,
                                                     bool DebugPassManager) {
-  PB.registerPipelineStartEPCallback([=](ModulePassManager &MPM) {
-    FunctionPassManager FPM(DebugPassManager);
-    FPM.addPass(BPFAbstractMemberAccessPass(this));
-    FPM.addPass(BPFPreserveDITypePass());
-    MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
-  });
+  PB.registerPipelineStartEPCallback(
+      [=](ModulePassManager &MPM, PassBuilder::OptimizationLevel) {
+        FunctionPassManager FPM(DebugPassManager);
+        FPM.addPass(BPFAbstractMemberAccessPass(this));
+        FPM.addPass(BPFPreserveDITypePass());
+        MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
+      });
   PB.registerPeepholeEPCallback([=](FunctionPassManager &FPM,
                                     PassBuilder::OptimizationLevel Level) {
     FPM.addPass(SimplifyCFGPass(SimplifyCFGOptions().hoistCommonInsts(true)));
diff --git a/llvm/tools/opt/NewPMDriver.cpp b/llvm/tools/opt/NewPMDriver.cpp
--- a/llvm/tools/opt/NewPMDriver.cpp
+++ b/llvm/tools/opt/NewPMDriver.cpp
@@ -190,10 +190,11 @@
           Err(PB.parsePassPipeline(PM, VectorizerStartEPPipeline));
         });
   if (tryParsePipelineText<ModulePassManager>(PB, PipelineStartEPPipeline))
-    PB.registerPipelineStartEPCallback([&PB](ModulePassManager &PM) {
-      ExitOnError Err("Unable to parse PipelineStartEP pipeline: ");
-      Err(PB.parsePassPipeline(PM, PipelineStartEPPipeline));
-    });
+    PB.registerPipelineStartEPCallback(
+        [&PB](ModulePassManager &PM, PassBuilder::OptimizationLevel) {
+          ExitOnError Err("Unable to parse PipelineStartEP pipeline: ");
+          Err(PB.parsePassPipeline(PM, PipelineStartEPPipeline));
+        });
   if (tryParsePipelineText<FunctionPassManager>(PB, OptimizerLastEPPipeline))
     PB.registerOptimizerLastEPCallback(
         [&PB](ModulePassManager &PM, PassBuilder::OptimizationLevel) {