From e528f67c142b963e1e70d47c5629b29d56d95d9d Mon Sep 17 00:00:00 2001
From: Dmitry Vyukov <dvyukov@google.com>
Date: Thu, 17 Jan 2013 12:13:03 +0000
Subject: [PATCH] tsan: fix a bug

llvm-svn: 172710
---
 compiler-rt/lib/sanitizer_common/sanitizer_lfstack.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_lfstack.h b/compiler-rt/lib/sanitizer_common/sanitizer_lfstack.h
index 6790879..e0c88a9 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_lfstack.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_lfstack.h
@@ -52,7 +52,7 @@ struct LFStack {
       if (cur == 0)
         return 0;
       T *nxt = cur->next;
-      u64 cnt = (cmp & kCounterBits);
+      u64 cnt = (cmp & kCounterMask);
       u64 xch = (u64)(uptr)nxt | cnt;
       if (atomic_compare_exchange_weak(&head_, &cmp, xch,
                                        memory_order_acquire))
-- 
2.7.4