diff --git a/llvm/include/llvm/IR/PassManager.h b/llvm/include/llvm/IR/PassManager.h
--- a/llvm/include/llvm/IR/PassManager.h
+++ b/llvm/include/llvm/IR/PassManager.h
@@ -548,6 +548,7 @@
   }
 
   template <typename PassT>
+  __attribute__((minsize))
   std::enable_if_t<!std::is_same<PassT, PassManager>::value>
   addPass(PassT &&Pass) {
     using PassModelT =
@@ -564,6 +565,7 @@
   /// implementation complexity and avoid potential invalidation issues that may
   /// happen with nested pass managers of the same type.
   template <typename PassT>
+  __attribute__((minsize))
   std::enable_if_t<std::is_same<PassT, PassManager>::value>
   addPass(PassT &&Pass) {
     for (auto &P : Pass.Passes)
diff --git a/llvm/include/llvm/Transforms/Scalar/LoopPassManager.h b/llvm/include/llvm/Transforms/Scalar/LoopPassManager.h
--- a/llvm/include/llvm/Transforms/Scalar/LoopPassManager.h
+++ b/llvm/include/llvm/Transforms/Scalar/LoopPassManager.h
@@ -103,6 +103,7 @@
   /// to the end of \var IsLoopNestPass so we can easily identify the types of
   /// passes in the pass manager later.
   template <typename PassT>
+  __attribute__((minsize))
   std::enable_if_t<is_detected<HasRunOnLoopT, PassT>::value>
   addPass(PassT &&Pass) {
     using LoopPassModelT =
@@ -114,6 +115,7 @@
   }
 
   template <typename PassT>
+  __attribute__((minsize))
   std::enable_if_t<!is_detected<HasRunOnLoopT, PassT>::value>
   addPass(PassT &&Pass) {
     using LoopNestPassModelT =
@@ -129,6 +131,7 @@
   // `RepeatedPass` has a templated `run` method that will result in incorrect
   // detection of `HasRunOnLoopT`.
   template <typename PassT>
+  __attribute__((minsize))
   std::enable_if_t<is_detected<HasRunOnLoopT, PassT>::value>
   addPass(RepeatedPass<PassT> &&Pass) {
     using RepeatedLoopPassModelT =
@@ -141,6 +144,7 @@
   }
 
   template <typename PassT>
+  __attribute__((minsize))
   std::enable_if_t<!is_detected<HasRunOnLoopT, PassT>::value>
   addPass(RepeatedPass<PassT> &&Pass) {
     using RepeatedLoopNestPassModelT =