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diff --git a/clang-r353983/include/llvm/Support/AlignOf.h b/clang-r353983/include/llvm/Support/AlignOf.h
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+//===--- AlignOf.h - Portable calculation of type alignment -----*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the AlignedCharArray and AlignedCharArrayUnion classes.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SUPPORT_ALIGNOF_H
+#define LLVM_SUPPORT_ALIGNOF_H
+
+#include "llvm/Support/Compiler.h"
+#include <cstddef>
+
+namespace llvm {
+
+/// \struct AlignedCharArray
+/// Helper for building an aligned character array type.
+///
+/// This template is used to explicitly build up a collection of aligned
+/// character array types. We have to build these up using a macro and explicit
+/// specialization to cope with MSVC (at least till 2015) where only an
+/// integer literal can be used to specify an alignment constraint. Once built
+/// up here, we can then begin to indirect between these using normal C++
+/// template parameters.
+
+// MSVC requires special handling here.
+#ifndef _MSC_VER
+
+template<std::size_t Alignment, std::size_t Size>
+struct AlignedCharArray {
+  alignas(Alignment) char buffer[Size];
+};
+
+#else // _MSC_VER
+
+/// Create a type with an aligned char buffer.
+template<std::size_t Alignment, std::size_t Size>
+struct AlignedCharArray;
+
+// We provide special variations of this template for the most common
+// alignments because __declspec(align(...)) doesn't actually work when it is
+// a member of a by-value function argument in MSVC, even if the alignment
+// request is something reasonably like 8-byte or 16-byte. Note that we can't
+// even include the declspec with the union that forces the alignment because
+// MSVC warns on the existence of the declspec despite the union member forcing
+// proper alignment.
+
+template<std::size_t Size>
+struct AlignedCharArray<1, Size> {
+  union {
+    char aligned;
+    char buffer[Size];
+  };
+};
+
+template<std::size_t Size>
+struct AlignedCharArray<2, Size> {
+  union {
+    short aligned;
+    char buffer[Size];
+  };
+};
+
+template<std::size_t Size>
+struct AlignedCharArray<4, Size> {
+  union {
+    int aligned;
+    char buffer[Size];
+  };
+};
+
+template<std::size_t Size>
+struct AlignedCharArray<8, Size> {
+  union {
+    double aligned;
+    char buffer[Size];
+  };
+};
+
+
+// The rest of these are provided with a __declspec(align(...)) and we simply
+// can't pass them by-value as function arguments on MSVC.
+
+#define LLVM_ALIGNEDCHARARRAY_TEMPLATE_ALIGNMENT(x) \
+  template<std::size_t Size> \
+  struct AlignedCharArray<x, Size> { \
+    __declspec(align(x)) char buffer[Size]; \
+  };
+
+LLVM_ALIGNEDCHARARRAY_TEMPLATE_ALIGNMENT(16)
+LLVM_ALIGNEDCHARARRAY_TEMPLATE_ALIGNMENT(32)
+LLVM_ALIGNEDCHARARRAY_TEMPLATE_ALIGNMENT(64)
+LLVM_ALIGNEDCHARARRAY_TEMPLATE_ALIGNMENT(128)
+
+#undef LLVM_ALIGNEDCHARARRAY_TEMPLATE_ALIGNMENT
+
+#endif // _MSC_VER
+
+namespace detail {
+template <typename T1,
+          typename T2 = char, typename T3 = char, typename T4 = char,
+          typename T5 = char, typename T6 = char, typename T7 = char,
+          typename T8 = char, typename T9 = char, typename T10 = char>
+class AlignerImpl {
+  T1 t1; T2 t2; T3 t3; T4 t4; T5 t5; T6 t6; T7 t7; T8 t8; T9 t9; T10 t10;
+
+  AlignerImpl() = delete;
+};
+
+template <typename T1,
+          typename T2 = char, typename T3 = char, typename T4 = char,
+          typename T5 = char, typename T6 = char, typename T7 = char,
+          typename T8 = char, typename T9 = char, typename T10 = char>
+union SizerImpl {
+  char arr1[sizeof(T1)], arr2[sizeof(T2)], arr3[sizeof(T3)], arr4[sizeof(T4)],
+       arr5[sizeof(T5)], arr6[sizeof(T6)], arr7[sizeof(T7)], arr8[sizeof(T8)],
+       arr9[sizeof(T9)], arr10[sizeof(T10)];
+};
+} // end namespace detail
+
+/// This union template exposes a suitably aligned and sized character
+/// array member which can hold elements of any of up to ten types.
+///
+/// These types may be arrays, structs, or any other types. The goal is to
+/// expose a char array buffer member which can be used as suitable storage for
+/// a placement new of any of these types. Support for more than ten types can
+/// be added at the cost of more boilerplate.
+template <typename T1,
+          typename T2 = char, typename T3 = char, typename T4 = char,
+          typename T5 = char, typename T6 = char, typename T7 = char,
+          typename T8 = char, typename T9 = char, typename T10 = char>
+struct AlignedCharArrayUnion : llvm::AlignedCharArray<
+    alignof(llvm::detail::AlignerImpl<T1, T2, T3, T4, T5,
+                                      T6, T7, T8, T9, T10>),
+    sizeof(::llvm::detail::SizerImpl<T1, T2, T3, T4, T5,
+                                     T6, T7, T8, T9, T10>)> {
+};
+} // end namespace llvm
+
+#endif // LLVM_SUPPORT_ALIGNOF_H