#define DEBUG_TYPE "tsan"
+#include "llvm/Transforms/Instrumentation.h"
#include "BlackList.h"
+#include "llvm/ADT/SmallSet.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/Statistic.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/DataLayout.h"
#include "llvm/Function.h"
#include "llvm/IRBuilder.h"
#include "llvm/Intrinsics.h"
#include "llvm/LLVMContext.h"
#include "llvm/Metadata.h"
#include "llvm/Module.h"
-#include "llvm/Type.h"
-#include "llvm/ADT/SmallSet.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/Statistic.h"
-#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
-#include "llvm/DataLayout.h"
-#include "llvm/Transforms/Instrumentation.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Transforms/Utils/ModuleUtils.h"
+#include "llvm/Type.h"
using namespace llvm;
static char ID; // Pass identification, replacement for typeid.
private:
+ void initializeCallbacks(Module &M);
bool instrumentLoadOrStore(Instruction *I);
bool instrumentAtomic(Instruction *I);
void chooseInstructionsToInstrument(SmallVectorImpl<Instruction*> &Local,
report_fatal_error("ThreadSanitizer interface function redefined");
}
-bool ThreadSanitizer::doInitialization(Module &M) {
- TD = getAnalysisIfAvailable<DataLayout>();
- if (!TD)
- return false;
- BL.reset(new BlackList(ClBlackListFile));
-
- // Always insert a call to __tsan_init into the module's CTORs.
+void ThreadSanitizer::initializeCallbacks(Module &M) {
IRBuilder<> IRB(M.getContext());
- Value *TsanInit = M.getOrInsertFunction("__tsan_init",
- IRB.getVoidTy(), NULL);
- appendToGlobalCtors(M, cast<Function>(TsanInit), 0);
-
// Initialize the callbacks.
TsanFuncEntry = checkInterfaceFunction(M.getOrInsertFunction(
"__tsan_func_entry", IRB.getVoidTy(), IRB.getInt8PtrTy(), NULL));
NamePart = "_fetch_or";
else if (op == AtomicRMWInst::Xor)
NamePart = "_fetch_xor";
+ else if (op == AtomicRMWInst::Nand)
+ NamePart = "_fetch_nand";
else
continue;
SmallString<32> RMWName("__tsan_atomic" + itostr(BitSize) + NamePart);
"__tsan_atomic_thread_fence", IRB.getVoidTy(), OrdTy, NULL));
TsanAtomicSignalFence = checkInterfaceFunction(M.getOrInsertFunction(
"__tsan_atomic_signal_fence", IRB.getVoidTy(), OrdTy, NULL));
+}
+
+bool ThreadSanitizer::doInitialization(Module &M) {
+ TD = getAnalysisIfAvailable<DataLayout>();
+ if (!TD)
+ return false;
+ BL.reset(new BlackList(ClBlackListFile));
+
+ // Always insert a call to __tsan_init into the module's CTORs.
+ IRBuilder<> IRB(M.getContext());
+ Value *TsanInit = M.getOrInsertFunction("__tsan_init",
+ IRB.getVoidTy(), NULL);
+ appendToGlobalCtors(M, cast<Function>(TsanInit), 0);
+
return true;
}
bool ThreadSanitizer::runOnFunction(Function &F) {
if (!TD) return false;
if (BL->isIn(F)) return false;
+ initializeCallbacks(*F.getParent());
SmallVector<Instruction*, 8> RetVec;
SmallVector<Instruction*, 8> AllLoadsAndStores;
SmallVector<Instruction*, 8> LocalLoadsAndStores;
case NotAtomic: assert(false);
case Unordered: // Fall-through.
case Monotonic: v = 0; break;
- // case Consume: v = 1; break; // Not specified yet.
+ // case Consume: v = 1; break; // Not specified yet.
case Acquire: v = 2; break;
case Release: v = 3; break;
case AcquireRelease: v = 4; break;
case NotAtomic: assert(false);
case Unordered: // Fall-through.
case Monotonic: v = 0; break;
- // case Consume: v = 1; break; // Not specified yet.
+ // case Consume: v = 1; break; // Not specified yet.
case Acquire: v = 2; break;
case Release: v = 0; break;
case AcquireRelease: v = 2; break;
// standards. For background see C++11 standard. A slightly older, publically
// available draft of the standard (not entirely up-to-date, but close enough
// for casual browsing) is available here:
-// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3242.pdf\
+// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3242.pdf
// The following page contains more background information:
// http://www.hpl.hp.com/personal/Hans_Boehm/c++mm/