[llvm-commits] [compiler-rt] r172712 - /compiler-rt/trunk/lib/sanitizer_common/sanitizer_lfstack.h

[Dmitry Vyukov]

Author: dvyukov
Date: Thu Jan 17 06:59:10 2013
New Revision: 172712

URL: http://llvm.org/viewvc/llvm-project?rev=172712&view=rev
Log:
tsan: fix a bug

Modified:
    compiler-rt/trunk/lib/sanitizer_common/sanitizer_lfstack.h

Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_lfstack.h
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_lfstack.h?rev=172712&r1=172711&r2=172712&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_lfstack.h (original)
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_lfstack.h Thu Jan 17 06:59:10 2013
@@ -36,7 +36,7 @@
   void Push(T *p) {
     u64 cmp = atomic_load(&head_, memory_order_relaxed);
     for (;;) {
-      u64 cnt = (cmp & kCounterBits) + kCounterInc;
+      u64 cnt = (cmp & kCounterMask) + kCounterInc;
       u64 xch = (u64)(uptr)p | cnt;
       p->next = (T*)(uptr)(cmp & kPtrMask);
       if (atomic_compare_exchange_weak(&head_, &cmp, xch,