[llvm] r242394 - Revert "Make ExecutionEngine owning a DataLayout"

Michael Kuperstein michael.m.kuperstein at intel.com
Thu Jul 16 05:20:32 PDT 2015


Author: mkuper
Date: Thu Jul 16 07:20:31 2015
New Revision: 242394

URL: http://llvm.org/viewvc/llvm-project?rev=242394&view=rev
Log:
Revert "Make ExecutionEngine owning a DataLayout"

Reverting to fix buildbot breakage.

This reverts commit r242387.

Modified:
    llvm/trunk/include/llvm/ExecutionEngine/ExecutionEngine.h
    llvm/trunk/lib/ExecutionEngine/ExecutionEngine.cpp
    llvm/trunk/lib/ExecutionEngine/ExecutionEngineBindings.cpp
    llvm/trunk/lib/ExecutionEngine/Interpreter/Execution.cpp
    llvm/trunk/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
    llvm/trunk/lib/ExecutionEngine/Interpreter/Interpreter.cpp
    llvm/trunk/lib/ExecutionEngine/Interpreter/Interpreter.h
    llvm/trunk/lib/ExecutionEngine/MCJIT/MCJIT.cpp
    llvm/trunk/lib/ExecutionEngine/Orc/OrcMCJITReplacement.h

Modified: llvm/trunk/include/llvm/ExecutionEngine/ExecutionEngine.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ExecutionEngine/ExecutionEngine.h?rev=242394&r1=242393&r2=242394&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ExecutionEngine/ExecutionEngine.h (original)
+++ llvm/trunk/include/llvm/ExecutionEngine/ExecutionEngine.h Thu Jul 16 07:20:31 2015
@@ -104,12 +104,7 @@ class ExecutionEngine {
   ExecutionEngineState EEState;
 
   /// The target data for the platform for which execution is being performed.
-  ///
-  /// Note: the DataLayout is LLVMContext specific because it has an
-  /// internal cache based on type pointers. It makes unsafe to reuse the
-  /// ExecutionEngine across context, we don't enforce this rule but undefined
-  /// behavior can occurs if the user tries to do it.
-  const DataLayout DL;
+  const DataLayout *DL;
 
   /// Whether lazy JIT compilation is enabled.
   bool CompilingLazily;
@@ -131,6 +126,8 @@ protected:
   /// optimize for the case where there is only one module.
   SmallVector<std::unique_ptr<Module>, 1> Modules;
 
+  void setDataLayout(const DataLayout *Val) { DL = Val; }
+
   /// getMemoryforGV - Allocate memory for a global variable.
   virtual char *getMemoryForGV(const GlobalVariable *GV);
 
@@ -197,7 +194,7 @@ public:
 
   //===--------------------------------------------------------------------===//
 
-  const DataLayout &getDataLayout() const { return DL; }
+  const DataLayout *getDataLayout() const { return DL; }
 
   /// removeModule - Remove a Module from the list of modules.  Returns true if
   /// M is found.
@@ -481,8 +478,8 @@ public:
   }
 
 protected:
-  ExecutionEngine(const DataLayout DL) : DL(std::move(DL)){};
-  explicit ExecutionEngine(const DataLayout DL, std::unique_ptr<Module> M);
+  ExecutionEngine() {}
+  explicit ExecutionEngine(std::unique_ptr<Module> M);
 
   void emitGlobals();
 

Modified: llvm/trunk/lib/ExecutionEngine/ExecutionEngine.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/ExecutionEngine.cpp?rev=242394&r1=242393&r2=242394&view=diff
==============================================================================
--- llvm/trunk/lib/ExecutionEngine/ExecutionEngine.cpp (original)
+++ llvm/trunk/lib/ExecutionEngine/ExecutionEngine.cpp Thu Jul 16 07:20:31 2015
@@ -61,8 +61,8 @@ ExecutionEngine *(*ExecutionEngine::Inte
 
 void JITEventListener::anchor() {}
 
-ExecutionEngine::ExecutionEngine(const DataLayout DL, std::unique_ptr<Module> M)
-    : DL(std::move(DL)), LazyFunctionCreator(nullptr) {
+ExecutionEngine::ExecutionEngine(std::unique_ptr<Module> M)
+  : LazyFunctionCreator(nullptr) {
   CompilingLazily         = false;
   GVCompilationDisabled   = false;
   SymbolSearchingDisabled = false;
@@ -115,7 +115,7 @@ public:
 }  // anonymous namespace
 
 char *ExecutionEngine::getMemoryForGV(const GlobalVariable *GV) {
-  return GVMemoryBlock::Create(GV, getDataLayout());
+  return GVMemoryBlock::Create(GV, *getDataLayout());
 }
 
 void ExecutionEngine::addObjectFile(std::unique_ptr<object::ObjectFile> O) {
@@ -326,7 +326,7 @@ void *ArgvArray::reset(LLVMContext &C, E
                        const std::vector<std::string> &InputArgv) {
   Values.clear();  // Free the old contents.
   Values.reserve(InputArgv.size());
-  unsigned PtrSize = EE->getDataLayout().getPointerSize();
+  unsigned PtrSize = EE->getDataLayout()->getPointerSize();
   Array = make_unique<char[]>((InputArgv.size()+1)*PtrSize);
 
   DEBUG(dbgs() << "JIT: ARGV = " << (void*)Array.get() << "\n");
@@ -401,7 +401,7 @@ void ExecutionEngine::runStaticConstruct
 #ifndef NDEBUG
 /// isTargetNullPtr - Return whether the target pointer stored at Loc is null.
 static bool isTargetNullPtr(ExecutionEngine *EE, void *Loc) {
-  unsigned PtrSize = EE->getDataLayout().getPointerSize();
+  unsigned PtrSize = EE->getDataLayout()->getPointerSize();
   for (unsigned i = 0; i < PtrSize; ++i)
     if (*(i + (uint8_t*)Loc))
       return false;
@@ -634,8 +634,8 @@ GenericValue ExecutionEngine::getConstan
     case Instruction::GetElementPtr: {
       // Compute the index
       GenericValue Result = getConstantValue(Op0);
-      APInt Offset(DL.getPointerSizeInBits(), 0);
-      cast<GEPOperator>(CE)->accumulateConstantOffset(DL, Offset);
+      APInt Offset(DL->getPointerSizeInBits(), 0);
+      cast<GEPOperator>(CE)->accumulateConstantOffset(*DL, Offset);
 
       char* tmp = (char*) Result.PointerVal;
       Result = PTOGV(tmp + Offset.getSExtValue());
@@ -722,16 +722,16 @@ GenericValue ExecutionEngine::getConstan
     }
     case Instruction::PtrToInt: {
       GenericValue GV = getConstantValue(Op0);
-      uint32_t PtrWidth = DL.getTypeSizeInBits(Op0->getType());
+      uint32_t PtrWidth = DL->getTypeSizeInBits(Op0->getType());
       assert(PtrWidth <= 64 && "Bad pointer width");
       GV.IntVal = APInt(PtrWidth, uintptr_t(GV.PointerVal));
-      uint32_t IntWidth = DL.getTypeSizeInBits(CE->getType());
+      uint32_t IntWidth = DL->getTypeSizeInBits(CE->getType());
       GV.IntVal = GV.IntVal.zextOrTrunc(IntWidth);
       return GV;
     }
     case Instruction::IntToPtr: {
       GenericValue GV = getConstantValue(Op0);
-      uint32_t PtrWidth = DL.getTypeSizeInBits(CE->getType());
+      uint32_t PtrWidth = DL->getTypeSizeInBits(CE->getType());
       GV.IntVal = GV.IntVal.zextOrTrunc(PtrWidth);
       assert(GV.IntVal.getBitWidth() <= 64 && "Bad pointer width");
       GV.PointerVal = PointerTy(uintptr_t(GV.IntVal.getZExtValue()));
@@ -1033,7 +1033,7 @@ static void StoreIntToMemory(const APInt
 
 void ExecutionEngine::StoreValueToMemory(const GenericValue &Val,
                                          GenericValue *Ptr, Type *Ty) {
-  const unsigned StoreBytes = getDataLayout().getTypeStoreSize(Ty);
+  const unsigned StoreBytes = getDataLayout()->getTypeStoreSize(Ty);
 
   switch (Ty->getTypeID()) {
   default:
@@ -1073,7 +1073,7 @@ void ExecutionEngine::StoreValueToMemory
     break;
   }
 
-  if (sys::IsLittleEndianHost != getDataLayout().isLittleEndian())
+  if (sys::IsLittleEndianHost != getDataLayout()->isLittleEndian())
     // Host and target are different endian - reverse the stored bytes.
     std::reverse((uint8_t*)Ptr, StoreBytes + (uint8_t*)Ptr);
 }
@@ -1110,7 +1110,7 @@ static void LoadIntFromMemory(APInt &Int
 void ExecutionEngine::LoadValueFromMemory(GenericValue &Result,
                                           GenericValue *Ptr,
                                           Type *Ty) {
-  const unsigned LoadBytes = getDataLayout().getTypeStoreSize(Ty);
+  const unsigned LoadBytes = getDataLayout()->getTypeStoreSize(Ty);
 
   switch (Ty->getTypeID()) {
   case Type::IntegerTyID:
@@ -1176,20 +1176,20 @@ void ExecutionEngine::InitializeMemory(c
   
   if (const ConstantVector *CP = dyn_cast<ConstantVector>(Init)) {
     unsigned ElementSize =
-        getDataLayout().getTypeAllocSize(CP->getType()->getElementType());
+      getDataLayout()->getTypeAllocSize(CP->getType()->getElementType());
     for (unsigned i = 0, e = CP->getNumOperands(); i != e; ++i)
       InitializeMemory(CP->getOperand(i), (char*)Addr+i*ElementSize);
     return;
   }
   
   if (isa<ConstantAggregateZero>(Init)) {
-    memset(Addr, 0, (size_t)getDataLayout().getTypeAllocSize(Init->getType()));
+    memset(Addr, 0, (size_t)getDataLayout()->getTypeAllocSize(Init->getType()));
     return;
   }
   
   if (const ConstantArray *CPA = dyn_cast<ConstantArray>(Init)) {
     unsigned ElementSize =
-        getDataLayout().getTypeAllocSize(CPA->getType()->getElementType());
+      getDataLayout()->getTypeAllocSize(CPA->getType()->getElementType());
     for (unsigned i = 0, e = CPA->getNumOperands(); i != e; ++i)
       InitializeMemory(CPA->getOperand(i), (char*)Addr+i*ElementSize);
     return;
@@ -1197,7 +1197,7 @@ void ExecutionEngine::InitializeMemory(c
   
   if (const ConstantStruct *CPS = dyn_cast<ConstantStruct>(Init)) {
     const StructLayout *SL =
-        getDataLayout().getStructLayout(cast<StructType>(CPS->getType()));
+      getDataLayout()->getStructLayout(cast<StructType>(CPS->getType()));
     for (unsigned i = 0, e = CPS->getNumOperands(); i != e; ++i)
       InitializeMemory(CPS->getOperand(i), (char*)Addr+SL->getElementOffset(i));
     return;
@@ -1342,7 +1342,7 @@ void ExecutionEngine::EmitGlobalVariable
     InitializeMemory(GV->getInitializer(), GA);
 
   Type *ElTy = GV->getType()->getElementType();
-  size_t GVSize = (size_t)getDataLayout().getTypeAllocSize(ElTy);
+  size_t GVSize = (size_t)getDataLayout()->getTypeAllocSize(ElTy);
   NumInitBytes += (unsigned)GVSize;
   ++NumGlobals;
 }

Modified: llvm/trunk/lib/ExecutionEngine/ExecutionEngineBindings.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/ExecutionEngineBindings.cpp?rev=242394&r1=242393&r2=242394&view=diff
==============================================================================
--- llvm/trunk/lib/ExecutionEngine/ExecutionEngineBindings.cpp (original)
+++ llvm/trunk/lib/ExecutionEngine/ExecutionEngineBindings.cpp Thu Jul 16 07:20:31 2015
@@ -318,7 +318,7 @@ void *LLVMRecompileAndRelinkFunction(LLV
 }
 
 LLVMTargetDataRef LLVMGetExecutionEngineTargetData(LLVMExecutionEngineRef EE) {
-  return wrap(&unwrap(EE)->getDataLayout());
+  return wrap(unwrap(EE)->getDataLayout());
 }
 
 LLVMTargetMachineRef

Modified: llvm/trunk/lib/ExecutionEngine/Interpreter/Execution.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/Interpreter/Execution.cpp?rev=242394&r1=242393&r2=242394&view=diff
==============================================================================
--- llvm/trunk/lib/ExecutionEngine/Interpreter/Execution.cpp (original)
+++ llvm/trunk/lib/ExecutionEngine/Interpreter/Execution.cpp Thu Jul 16 07:20:31 2015
@@ -968,7 +968,7 @@ void Interpreter::visitAllocaInst(Alloca
   unsigned NumElements = 
     getOperandValue(I.getOperand(0), SF).IntVal.getZExtValue();
 
-  unsigned TypeSize = (size_t)getDataLayout().getTypeAllocSize(Ty);
+  unsigned TypeSize = (size_t)TD.getTypeAllocSize(Ty);
 
   // Avoid malloc-ing zero bytes, use max()...
   unsigned MemToAlloc = std::max(1U, NumElements * TypeSize);
@@ -1000,7 +1000,7 @@ GenericValue Interpreter::executeGEPOper
 
   for (; I != E; ++I) {
     if (StructType *STy = dyn_cast<StructType>(*I)) {
-      const StructLayout *SLO = getDataLayout().getStructLayout(STy);
+      const StructLayout *SLO = TD.getStructLayout(STy);
 
       const ConstantInt *CPU = cast<ConstantInt>(I.getOperand());
       unsigned Index = unsigned(CPU->getZExtValue());
@@ -1020,7 +1020,7 @@ GenericValue Interpreter::executeGEPOper
         assert(BitWidth == 64 && "Invalid index type for getelementptr");
         Idx = (int64_t)IdxGV.IntVal.getZExtValue();
       }
-      Total += getDataLayout().getTypeAllocSize(ST->getElementType()) * Idx;
+      Total += TD.getTypeAllocSize(ST->getElementType())*Idx;
     }
   }
 
@@ -1477,7 +1477,7 @@ GenericValue Interpreter::executeIntToPt
   GenericValue Dest, Src = getOperandValue(SrcVal, SF);
   assert(DstTy->isPointerTy() && "Invalid PtrToInt instruction");
 
-  uint32_t PtrSize = getDataLayout().getPointerSizeInBits();
+  uint32_t PtrSize = TD.getPointerSizeInBits();
   if (PtrSize != Src.IntVal.getBitWidth())
     Src.IntVal = Src.IntVal.zextOrTrunc(PtrSize);
 
@@ -1497,7 +1497,7 @@ GenericValue Interpreter::executeBitCast
       (DstTy->getTypeID() == Type::VectorTyID)) {
     // vector src bitcast to vector dst or vector src bitcast to scalar dst or
     // scalar src bitcast to vector dst
-    bool isLittleEndian = getDataLayout().isLittleEndian();
+    bool isLittleEndian = TD.isLittleEndian();
     GenericValue TempDst, TempSrc, SrcVec;
     const Type *SrcElemTy;
     const Type *DstElemTy;

Modified: llvm/trunk/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp?rev=242394&r1=242393&r2=242394&view=diff
==============================================================================
--- llvm/trunk/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp (original)
+++ llvm/trunk/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp Thu Jul 16 07:20:31 2015
@@ -368,7 +368,7 @@ static GenericValue lle_X_sprintf(Functi
       case 'x': case 'X':
         if (HowLong >= 1) {
           if (HowLong == 1 &&
-              TheInterpreter->getDataLayout().getPointerSizeInBits() == 64 &&
+              TheInterpreter->getDataLayout()->getPointerSizeInBits() == 64 &&
               sizeof(long) < sizeof(int64_t)) {
             // Make sure we use %lld with a 64 bit argument because we might be
             // compiling LLI on a 32 bit compiler.

Modified: llvm/trunk/lib/ExecutionEngine/Interpreter/Interpreter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/Interpreter/Interpreter.cpp?rev=242394&r1=242393&r2=242394&view=diff
==============================================================================
--- llvm/trunk/lib/ExecutionEngine/Interpreter/Interpreter.cpp (original)
+++ llvm/trunk/lib/ExecutionEngine/Interpreter/Interpreter.cpp Thu Jul 16 07:20:31 2015
@@ -49,15 +49,16 @@ ExecutionEngine *Interpreter::create(std
 // Interpreter ctor - Initialize stuff
 //
 Interpreter::Interpreter(std::unique_ptr<Module> M)
-    : ExecutionEngine(M->getDataLayout(), std::move(M)) {
+  : ExecutionEngine(std::move(M)), TD(Modules.back().get()) {
 
   memset(&ExitValue.Untyped, 0, sizeof(ExitValue.Untyped));
+  setDataLayout(&TD);
   // Initialize the "backend"
   initializeExecutionEngine();
   initializeExternalFunctions();
   emitGlobals();
 
-  IL = new IntrinsicLowering(getDataLayout());
+  IL = new IntrinsicLowering(TD);
 }
 
 Interpreter::~Interpreter() {

Modified: llvm/trunk/lib/ExecutionEngine/Interpreter/Interpreter.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/Interpreter/Interpreter.h?rev=242394&r1=242393&r2=242394&view=diff
==============================================================================
--- llvm/trunk/lib/ExecutionEngine/Interpreter/Interpreter.h (original)
+++ llvm/trunk/lib/ExecutionEngine/Interpreter/Interpreter.h Thu Jul 16 07:20:31 2015
@@ -95,6 +95,7 @@ struct ExecutionContext {
 //
 class Interpreter : public ExecutionEngine, public InstVisitor<Interpreter> {
   GenericValue ExitValue;          // The return value of the called function
+  DataLayout TD;
   IntrinsicLowering *IL;
 
   // The runtime stack of executing code.  The top of the stack is the current

Modified: llvm/trunk/lib/ExecutionEngine/MCJIT/MCJIT.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/MCJIT/MCJIT.cpp?rev=242394&r1=242393&r2=242394&view=diff
==============================================================================
--- llvm/trunk/lib/ExecutionEngine/MCJIT/MCJIT.cpp (original)
+++ llvm/trunk/lib/ExecutionEngine/MCJIT/MCJIT.cpp Thu Jul 16 07:20:31 2015
@@ -65,13 +65,12 @@ MCJIT::createJIT(std::unique_ptr<Module>
                    std::move(Resolver));
 }
 
-MCJIT::MCJIT(std::unique_ptr<Module> M, std::unique_ptr<TargetMachine> TM,
+MCJIT::MCJIT(std::unique_ptr<Module> M, std::unique_ptr<TargetMachine> tm,
              std::shared_ptr<MCJITMemoryManager> MemMgr,
              std::shared_ptr<RuntimeDyld::SymbolResolver> Resolver)
-    : ExecutionEngine(*TM->getDataLayout(), std::move(M)), TM(std::move(TM)),
-      Ctx(nullptr), MemMgr(std::move(MemMgr)),
-      Resolver(*this, std::move(Resolver)), Dyld(*this->MemMgr, this->Resolver),
-      ObjCache(nullptr) {
+    : ExecutionEngine(std::move(M)), TM(std::move(tm)), Ctx(nullptr),
+      MemMgr(std::move(MemMgr)), Resolver(*this, std::move(Resolver)),
+      Dyld(*this->MemMgr, this->Resolver), ObjCache(nullptr) {
   // FIXME: We are managing our modules, so we do not want the base class
   // ExecutionEngine to manage them as well. To avoid double destruction
   // of the first (and only) module added in ExecutionEngine constructor
@@ -86,6 +85,7 @@ MCJIT::MCJIT(std::unique_ptr<Module> M,
   Modules.clear();
 
   OwnedModules.addModule(std::move(First));
+  setDataLayout(TM->getDataLayout());
   RegisterJITEventListener(JITEventListener::createGDBRegistrationListener());
 }
 
@@ -193,11 +193,7 @@ void MCJIT::generateCodeForModule(Module
   if (ObjCache)
     ObjectToLoad = ObjCache->getObject(M);
 
-  if (M->getDataLayout().isDefault()) {
-    M->setDataLayout(getDataLayout());
-  } else {
-    assert(M->getDataLayout() == getDataLayout() && "DataLayout Mismatch");
-  }
+  M->setDataLayout(*TM->getDataLayout());
 
   // If the cache did not contain a suitable object, compile the object
   if (!ObjectToLoad) {
@@ -269,7 +265,7 @@ void MCJIT::finalizeModule(Module *M) {
 
 RuntimeDyld::SymbolInfo MCJIT::findExistingSymbol(const std::string &Name) {
   SmallString<128> FullName;
-  Mangler::getNameWithPrefix(FullName, Name, getDataLayout());
+  Mangler::getNameWithPrefix(FullName, Name, *TM->getDataLayout());
   return Dyld.getSymbol(FullName);
 }
 

Modified: llvm/trunk/lib/ExecutionEngine/Orc/OrcMCJITReplacement.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/Orc/OrcMCJITReplacement.h?rev=242394&r1=242393&r2=242394&view=diff
==============================================================================
--- llvm/trunk/lib/ExecutionEngine/Orc/OrcMCJITReplacement.h (original)
+++ llvm/trunk/lib/ExecutionEngine/Orc/OrcMCJITReplacement.h Thu Jul 16 07:20:31 2015
@@ -137,26 +137,25 @@ public:
   }
 
   OrcMCJITReplacement(
-      std::shared_ptr<MCJITMemoryManager> MemMgr,
-      std::shared_ptr<RuntimeDyld::SymbolResolver> ClientResolver,
-      std::unique_ptr<TargetMachine> TM)
-      : ExecutionEngine(*TM->getDataLayout()), TM(std::move(TM)),
-        MemMgr(*this, std::move(MemMgr)), Resolver(*this),
-        ClientResolver(std::move(ClientResolver)), NotifyObjectLoaded(*this),
-        NotifyFinalized(*this),
+                    std::shared_ptr<MCJITMemoryManager> MemMgr,
+                    std::shared_ptr<RuntimeDyld::SymbolResolver> ClientResolver,
+                    std::unique_ptr<TargetMachine> TM)
+      : TM(std::move(TM)), MemMgr(*this, std::move(MemMgr)),
+        Resolver(*this), ClientResolver(std::move(ClientResolver)),
+        NotifyObjectLoaded(*this), NotifyFinalized(*this),
         ObjectLayer(NotifyObjectLoaded, NotifyFinalized),
         CompileLayer(ObjectLayer, SimpleCompiler(*this->TM)),
-        LazyEmitLayer(CompileLayer) {}
+        LazyEmitLayer(CompileLayer) {
+    setDataLayout(this->TM->getDataLayout());
+  }
 
   void addModule(std::unique_ptr<Module> M) override {
 
     // If this module doesn't have a DataLayout attached then attach the
     // default.
-    if (M->getDataLayout().isDefault()) {
-      M->setDataLayout(getDataLayout());
-    } else {
-      assert(M->getDataLayout() == getDataLayout() && "DataLayout Mismatch");
-    }
+    if (M->getDataLayout().isDefault())
+      M->setDataLayout(*getDataLayout());
+
     Modules.push_back(std::move(M));
     std::vector<Module *> Ms;
     Ms.push_back(&*Modules.back());
@@ -311,7 +310,7 @@ private:
     std::string MangledName;
     {
       raw_string_ostream MangledNameStream(MangledName);
-      Mang.getNameWithPrefix(MangledNameStream, Name, getDataLayout());
+      Mang.getNameWithPrefix(MangledNameStream, Name, *TM->getDataLayout());
     }
     return MangledName;
   }





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