diff --git a/clang/lib/Sema/SemaStmtAttr.cpp b/clang/lib/Sema/SemaStmtAttr.cpp
--- a/clang/lib/Sema/SemaStmtAttr.cpp
+++ b/clang/lib/Sema/SemaStmtAttr.cpp
@@ -259,7 +259,7 @@
 
   for (const auto *CallExpr : CEF.getCallExprs()) {
     const Decl *Decl = CallExpr->getCalleeDecl();
-    if (Decl->hasAttr<NoInlineAttr>() || Decl->hasAttr<FlattenAttr>())
+    if (Decl && (Decl->hasAttr<NoInlineAttr>() || Decl->hasAttr<FlattenAttr>()))
       S.Diag(St->getBeginLoc(), diag::warn_function_stmt_attribute_precedence)
           << A << (Decl->hasAttr<NoInlineAttr>() ? 2 : 1);
   }