From 65101adb16a4f3e9db73ed250185bf505d9fb15b Mon Sep 17 00:00:00 2001
From: Saleem Abdulrasool <compnerd@compnerd.org>
Date: Wed, 23 Aug 2017 16:57:55 +0000
Subject: [PATCH] Headers: explicitly specify double-word alignment

GCC will interpret `__attribute__((__aligned__))` as 8-byte alignment on
ARM, but clang will not.  Explicitly specify the alignment.  This
mirrors the declaration in libunwind.

llvm-svn: 311576
---
 clang/lib/Headers/unwind.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/lib/Headers/unwind.h b/clang/lib/Headers/unwind.h
index c5ad04863f48..22414a4e46d0 100644
--- a/clang/lib/Headers/unwind.h
+++ b/clang/lib/Headers/unwind.h
@@ -149,7 +149,7 @@ struct _Unwind_Control_Block {
     uint32_t reserved1;
   } pr_cache;
   long long int : 0; /* force alignment of next item to 8-byte boundary */
-} __attribute__((__aligned__));
+} __attribute__((__aligned__(8)));
 #else
 struct _Unwind_Exception {
   _Unwind_Exception_Class exception_class;