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
@@ -631,6 +631,9 @@
                               std::string ProfileFile,
                               std::string ProfileRemappingFile);
 
+
+  /// Returns PIC. External libraries can use this to add pass instrumentation
+  PassInstrumentationCallbacks *getPIC() const { return PIC; }
 private:
   static Optional<std::vector<PipelineElement>>
   parsePipelineText(StringRef Text);