From 3899951490d9587d91a9a2c5654e45295d753e7a Mon Sep 17 00:00:00 2001
From: "Duncan P. N. Exon Smith" <dexonsmith@apple.com>
Date: Thu, 28 May 2015 18:09:13 +0000
Subject: [PATCH] AsmPrinter: Suppress warnings on GCC from r238362, NFC

GCC seems to have some overzealous warnings about strict aliasing.
Rafael reports that this patch suppresses them on GCC 4.9, and I'm
hoping this will work for GCC 4.7 as well.  I'll watch [1] and iterate
if necessary.

[1]: http://bb.pgr.jp/builders/clang-3stage-x86_64-linux/builds/8597

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238447 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/CodeGen/DIE.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/llvm/CodeGen/DIE.h b/include/llvm/CodeGen/DIE.h
index c843f3fd1a6..e247d46ba5b 100644
--- a/include/llvm/CodeGen/DIE.h
+++ b/include/llvm/CodeGen/DIE.h
@@ -340,11 +340,11 @@ private:
     new (reinterpret_cast<void *>(Val.buffer)) T(V);
   }
 
-  template <class T> T &get() { return *reinterpret_cast<T *>(Val.buffer); }
-  template <class T> const T &get() const {
-    return *reinterpret_cast<const T *>(Val.buffer);
+  template <class T> T *get() { return reinterpret_cast<T *>(Val.buffer); }
+  template <class T> const T *get() const {
+    return reinterpret_cast<const T *>(Val.buffer);
   }
-  template <class T> void destruct() { get<T>().~T(); }
+  template <class T> void destruct() { get<T>()->~T(); }
 
   /// Destroy the underlying value.
   ///
@@ -378,11 +378,11 @@ private:
       return;
 #define HANDLE_DIEVALUE_SMALL(T)                                               \
   case is##T:                                                                  \
-    construct<DIE##T>(X.get<DIE##T>());                                        \
+    construct<DIE##T>(*X.get<DIE##T>());                                       \
     return;
 #define HANDLE_DIEVALUE_LARGE(T)                                               \
   case is##T:                                                                  \
-    construct<const DIE##T *>(X.get<const DIE##T *>());                        \
+    construct<const DIE##T *>(*X.get<const DIE##T *>());                       \
     return;
 #include "llvm/CodeGen/DIEValue.def"
     }
@@ -425,12 +425,12 @@ public:
 #define HANDLE_DIEVALUE_SMALL(T)                                               \
   const DIE##T &getDIE##T() const {                                            \
     assert(getType() == is##T && "Expected " #T);                              \
-    return get<DIE##T>();                                                      \
+    return *get<DIE##T>();                                                     \
   }
 #define HANDLE_DIEVALUE_LARGE(T)                                               \
   const DIE##T &getDIE##T() const {                                            \
     assert(getType() == is##T && "Expected " #T);                              \
-    return *get<const DIE##T *>();                                             \
+    return **get<const DIE##T *>();                                            \
   }
 #include "llvm/CodeGen/DIEValue.def"
 
-- 
2.34.1