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authorNick Lewycky <nicholas@mxc.ca>2011-12-05 23:07:05 +0000
committerNick Lewycky <nicholas@mxc.ca>2011-12-05 23:07:05 +0000
commitaa21e417f24fe9be4fd8db366766fb262c96703e (patch)
treeee3b73e1026a1a64de7d32b502ea8106c472f0b1 /lib/Support
parenta4b6fd5be08ad6a1cb2d07aba2814aaa2a626c8d (diff)
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Silence tsan false-positives (tsan can't track things which are only safe due to
memory fences) in statistics registration, which works the same way that ManagedStatic registration does. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145869 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support')
-rw-r--r--lib/Support/Statistic.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Support/Statistic.cpp b/lib/Support/Statistic.cpp
index 04a44a0..d8a6ad3 100644
--- a/lib/Support/Statistic.cpp
+++ b/lib/Support/Statistic.cpp
@@ -73,9 +73,12 @@ void Statistic::RegisterStatistic() {
if (Enabled)
StatInfo->addStatistic(this);
+ TsanHappensBefore(this);
sys::MemoryFence();
// Remember we have been registered.
+ TsanIgnoreWritesBegin();
Initialized = true;
+ TsanIgnoreWritesEnd();
}
}