diff --git a/third_party/llvm-16.0/llvm/include/llvm/Support/AlignOf.h b/third_party/llvm-16.0/llvm/include/llvm/Support/AlignOf.h
index a8c4578..da1d7e3 100644
--- a/third_party/llvm-16.0/llvm/include/llvm/Support/AlignOf.h
+++ b/third_party/llvm-16.0/llvm/include/llvm/Support/AlignOf.h
@@ -20,7 +20,7 @@
 /// A suitably aligned and sized character array member which can hold elements
 /// of any type.
 template <typename T, typename... Ts> struct AlignedCharArrayUnion {
-  alignas(Ts...) char buffer[std::max({sizeof(Ts)...})];
+  alignas(std::max({std::size_t(1), alignof(T), alignof(Ts)...})) char buffer[std::max({std::size_t(1), sizeof(T), sizeof(Ts)...})];
 };
 
 } // end namespace llvm