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tsan: implement no_sanitize_thread attribute

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If a function has no_sanitize_thread attribute,
do not instrument memory accesses in it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192871 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dmitry Vyukov
2013-10-17 07:20:06 +00:00
parent 49af380e3b
commit 4ef1999d61
7 changed files with 47 additions and 11 deletions
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2
lib/Transforms/Instrumentation/ThreadSanitizer.cpp
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@ -358,7 +358,7 @@ bool ThreadSanitizer::runOnFunction(Function &F) {
// (e.g. variables that do not escape, etc).
// Instrument memory accesses.
if (ClInstrumentMemoryAccesses)
if (ClInstrumentMemoryAccesses && F.hasFnAttribute(Attribute::SanitizeThread))
for (size_t i = 0, n = AllLoadsAndStores.size(); i < n; ++i) {
Res |= instrumentLoadOrStore(AllLoadsAndStores[i]);
}