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
@@ -723,6 +723,7 @@
       MPM.addPass(PGOIndirectCallPromotion(Phase == ThinLTOPhase::PostLink,
                                            true /* SamplePGO */));
   }
+  MPM.addPass(AttributorPass());
 
   // Interprocedural constant propagation now that basic cleanup has occurred
   // and prior to optimizing globals.