From 954966c1afa28bb1c00b29b36a87954329c12c18 Mon Sep 17 00:00:00 2001
From: Marshall Clow <mclow.lists@gmail.com>
Date: Thu, 7 Feb 2019 18:53:58 +0000
Subject: [PATCH] Add UBSAN annotation to __hash_table::rehash; we don't do
 anything wrong, but UBSAN's checker flags it as suspicious. See PR38606. NFC

llvm-svn: 353448
---
 libcxx/include/__hash_table | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libcxx/include/__hash_table b/libcxx/include/__hash_table
index f6b789dc75a2..4409d6dc564b 100644
--- a/libcxx/include/__hash_table
+++ b/libcxx/include/__hash_table
@@ -2371,6 +2371,7 @@ __hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_merge_multi(
 template <class _Tp, class _Hash, class _Equal, class _Alloc>
 void
 __hash_table<_Tp, _Hash, _Equal, _Alloc>::rehash(size_type __n)
+_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
 {
     if (__n == 1)
         __n = 2;