From bd71fce9145fde573a6508cdc542ea4e7bc9cdcd Mon Sep 17 00:00:00 2001
From: Richard Smith <richard-llvm@metafoo.co.uk>
Date: Mon, 16 May 2016 23:03:40 +0000
Subject: [PATCH] Try to make the buildbots green again: avoid the need for
 class Attr to be complete for users of AttrVec.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@269720 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/clang/AST/AttrIterator.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/clang/AST/AttrIterator.h b/include/clang/AST/AttrIterator.h
index b768e5636a..52a8d8ddd3 100644
--- a/include/clang/AST/AttrIterator.h
+++ b/include/clang/AST/AttrIterator.h
@@ -23,6 +23,13 @@ namespace clang {
   class Attr;
 }
 
+namespace llvm {
+  // Explicitly opt into 4 byte alignment for Attr*, to avoid the need to
+  // include the heavyweight Attr.h to use a TinyPtrVector<Attr*>.
+  template <>
+  struct PointerLikeTypeTraits<Attr *> : PointerLikeTypeTraits<void *> {};
+}
+
 // Defined in ASTContext.h
 void *operator new(size_t Bytes, const clang::ASTContext &C,
                    size_t Alignment = 8);
-- 
2.40.0