Use function_ref to avoid allocation in std::function. NFC.

llvm-svn: 289433

2 files changed, 4 insertions, 2 deletions

diff --git a/clang/include/clang/Sema/Sema.h b/clang/include/clang/Sema/Sema.h
index b08c698d0b8..2028d2cd782 100644
--- a/clang/include/clang/Sema/Sema.h
+++ b/clang/include/clang/Sema/Sema.h
@@ -10029,7 +10029,8 @@ public:
   /// local diagnostics like in reference binding.
   void RefersToMemberWithReducedAlignment(
       Expr *E,
-      std::function<void(Expr *, RecordDecl *, FieldDecl *, CharUnits)> Action);
+      llvm::function_ref<void(Expr *, RecordDecl *, FieldDecl *, CharUnits)>
+          Action);
 };
 
 /// \brief RAII object that enters a new expression evaluation context.
diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index fd0654b3ff2..6a9afc4deb5 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -11816,7 +11816,8 @@ void Sema::DiscardMisalignedMemberAddress(const Type *T, Expr *E) {
 
 void Sema::RefersToMemberWithReducedAlignment(
     Expr *E,
-    std::function<void(Expr *, RecordDecl *, FieldDecl *, CharUnits)> Action) {
+    llvm::function_ref<void(Expr *, RecordDecl *, FieldDecl *, CharUnits)>
+        Action) {
   const auto *ME = dyn_cast<MemberExpr>(E);
   if (!ME)
     return;