From b2881f1fbef62b8a9ba38af2f763a54e24ef5022 Mon Sep 17 00:00:00 2001
From: Reid Kleckner <rnk@google.com>
Date: Tue, 6 Sep 2016 19:39:56 +0000
Subject: [PATCH] Fix ItaniumDemangle.cpp build with MSVC 2013

llvm-svn: 280740
---
 llvm/lib/Demangle/ItaniumDemangle.cpp | 37 ++++++++++++++++++-----------------
 1 file changed, 19 insertions(+), 18 deletions(-)

diff --git a/llvm/lib/Demangle/ItaniumDemangle.cpp b/llvm/lib/Demangle/ItaniumDemangle.cpp
index ff533f6..d261aa0 100644
--- a/llvm/lib/Demangle/ItaniumDemangle.cpp
+++ b/llvm/lib/Demangle/ItaniumDemangle.cpp
@@ -7,7 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include <llvm/Demangle/Demangle.h>
+#include "llvm/Demangle/Demangle.h"
+#include "llvm/Support/Compiler.h"
 
 // This file exports a single function: llvm::itanium_demangle.
 // It also has no dependencies on the rest of llvm. It is implemented this way
@@ -4211,27 +4212,27 @@ static void demangle(const char *first, const char *last, C &db, int &status) {
 namespace {
 template <std::size_t N> class arena {
   static const std::size_t alignment = 16;
-  alignas(alignment) char buf_[N];
+  LLVM_ALIGNAS(16) char buf_[N];
   char *ptr_;
 
-  std::size_t align_up(std::size_t n) noexcept {
+  std::size_t align_up(std::size_t n) LLVM_NOEXCEPT {
     return (n + (alignment - 1)) & ~(alignment - 1);
   }
 
-  bool pointer_in_buffer(char *p) noexcept {
+  bool pointer_in_buffer(char *p) LLVM_NOEXCEPT {
     return buf_ <= p && p <= buf_ + N;
   }
 
 public:
-  arena() noexcept : ptr_(buf_) {}
+  arena() LLVM_NOEXCEPT : ptr_(buf_) {}
   ~arena() { ptr_ = nullptr; }
   arena(const arena &) = delete;
   arena &operator=(const arena &) = delete;
 
   char *allocate(std::size_t n);
-  void deallocate(char *p, std::size_t n) noexcept;
+  void deallocate(char *p, std::size_t n) LLVM_NOEXCEPT;
 
-  static constexpr std::size_t size() { return N; }
+  static LLVM_CONSTEXPR std::size_t size() { return N; }
   std::size_t used() const { return static_cast<std::size_t>(ptr_ - buf_); }
   void reset() { ptr_ = buf_; }
 };
@@ -4247,7 +4248,7 @@ template <std::size_t N> char *arena<N>::allocate(std::size_t n) {
 }
 
 template <std::size_t N>
-void arena<N>::deallocate(char *p, std::size_t n) noexcept {
+void arena<N>::deallocate(char *p, std::size_t n) LLVM_NOEXCEPT {
   if (pointer_in_buffer(p)) {
     n = align_up(n);
     if (p + n == ptr_)
@@ -4265,35 +4266,35 @@ public:
 public:
   template <class _Up> struct rebind { typedef short_alloc<_Up, N> other; };
 
-  short_alloc(arena<N> &a) noexcept : a_(a) {}
+  short_alloc(arena<N> &a) LLVM_NOEXCEPT : a_(a) {}
   template <class U>
-  short_alloc(const short_alloc<U, N> &a) noexcept : a_(a.a_) {}
+  short_alloc(const short_alloc<U, N> &a) LLVM_NOEXCEPT : a_(a.a_) {}
   short_alloc(const short_alloc &) = default;
   short_alloc &operator=(const short_alloc &) = delete;
 
   T *allocate(std::size_t n) {
     return reinterpret_cast<T *>(a_.allocate(n * sizeof(T)));
   }
-  void deallocate(T *p, std::size_t n) noexcept {
+  void deallocate(T *p, std::size_t n) LLVM_NOEXCEPT {
     a_.deallocate(reinterpret_cast<char *>(p), n * sizeof(T));
   }
 
   template <class T1, std::size_t N1, class U, std::size_t M>
   friend bool operator==(const short_alloc<T1, N1> &x,
-                         const short_alloc<U, M> &y) noexcept;
+                         const short_alloc<U, M> &y) LLVM_NOEXCEPT;
 
   template <class U, std::size_t M> friend class short_alloc;
 };
 
 template <class T, std::size_t N, class U, std::size_t M>
 inline bool operator==(const short_alloc<T, N> &x,
-                       const short_alloc<U, M> &y) noexcept {
+                       const short_alloc<U, M> &y) LLVM_NOEXCEPT {
   return N == M && &x.a_ == &y.a_;
 }
 
 template <class T, std::size_t N, class U, std::size_t M>
 inline bool operator!=(const short_alloc<T, N> &x,
-                       const short_alloc<U, M> &y) noexcept {
+                       const short_alloc<U, M> &y) LLVM_NOEXCEPT {
   return !(x == y);
 }
 
@@ -4308,12 +4309,12 @@ public:
   typedef std::ptrdiff_t difference_type;
 
   malloc_alloc() = default;
-  template <class U> malloc_alloc(const malloc_alloc<U> &) noexcept {}
+  template <class U> malloc_alloc(const malloc_alloc<U> &) LLVM_NOEXCEPT {}
 
   T *allocate(std::size_t n) {
     return static_cast<T *>(std::malloc(n * sizeof(T)));
   }
-  void deallocate(T *p, std::size_t) noexcept { std::free(p); }
+  void deallocate(T *p, std::size_t) LLVM_NOEXCEPT { std::free(p); }
 
   template <class U> struct rebind { using other = malloc_alloc<U>; };
   template <class U, class... Args> void construct(U *p, Args &&... args) {
@@ -4324,13 +4325,13 @@ public:
 
 template <class T, class U>
 inline bool operator==(const malloc_alloc<T> &,
-                       const malloc_alloc<U> &) noexcept {
+                       const malloc_alloc<U> &) LLVM_NOEXCEPT {
   return true;
 }
 
 template <class T, class U>
 inline bool operator!=(const malloc_alloc<T> &x,
-                       const malloc_alloc<U> &y) noexcept {
+                       const malloc_alloc<U> &y) LLVM_NOEXCEPT {
   return !(x == y);
 }
 
-- 
2.7.4