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Add Tsan annotations to the pass system.
Perhaps once(&func) should be hoisted into lib/Support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146110 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -25,6 +25,7 @@
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#include "llvm/PassRegistry.h"
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#include "llvm/InitializePasses.h"
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#include "llvm/Support/Atomic.h"
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#include "llvm/Support/Valgrind.h"
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#include <vector>
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namespace llvm {
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@ -135,7 +136,10 @@ private:
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if (old_val == 0) { \
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function(Registry); \
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sys::MemoryFence(); \
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TsanIgnoreWritesBegin(); \
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TsanHappensBefore(&initialized); \
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initialized = 2; \
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TsanIgnoreWritesEnd(); \
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} else { \
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sys::cas_flag tmp = initialized; \
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sys::MemoryFence(); \
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@ -143,7 +147,8 @@ private:
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tmp = initialized; \
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sys::MemoryFence(); \
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} \
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}
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} \
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TsanHappensAfter(&initialized);
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#define INITIALIZE_PASS(passName, arg, name, cfg, analysis) \
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static void* initialize##passName##PassOnce(PassRegistry &Registry) { \
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