1 //===-- ExecutionEngine.cpp - Common Implementation shared by EEs ---------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the common interface used by the various execution engine
13 //===----------------------------------------------------------------------===//
15 #include "llvm/ExecutionEngine/ExecutionEngine.h"
16 #include "llvm/ADT/SmallString.h"
17 #include "llvm/ADT/Statistic.h"
18 #include "llvm/ExecutionEngine/GenericValue.h"
19 #include "llvm/ExecutionEngine/JITMemoryManager.h"
20 #include "llvm/ExecutionEngine/ObjectCache.h"
21 #include "llvm/IR/Constants.h"
22 #include "llvm/IR/DataLayout.h"
23 #include "llvm/IR/DerivedTypes.h"
24 #include "llvm/IR/Module.h"
25 #include "llvm/IR/Operator.h"
26 #include "llvm/IR/ValueHandle.h"
27 #include "llvm/Object/Archive.h"
28 #include "llvm/Object/ObjectFile.h"
29 #include "llvm/Support/Debug.h"
30 #include "llvm/Support/DynamicLibrary.h"
31 #include "llvm/Support/ErrorHandling.h"
32 #include "llvm/Support/Host.h"
33 #include "llvm/Support/MutexGuard.h"
34 #include "llvm/Support/TargetRegistry.h"
35 #include "llvm/Support/raw_ostream.h"
36 #include "llvm/Target/TargetMachine.h"
41 #define DEBUG_TYPE "jit"
43 STATISTIC(NumInitBytes, "Number of bytes of global vars initialized");
44 STATISTIC(NumGlobals , "Number of global vars initialized");
46 // Pin the vtable to this file.
47 void ObjectCache::anchor() {}
48 void ObjectBuffer::anchor() {}
49 void ObjectBufferStream::anchor() {}
51 ExecutionEngine *(*ExecutionEngine::JITCtor)(
52 std::unique_ptr<Module> M,
53 std::string *ErrorStr,
54 JITMemoryManager *JMM,
56 TargetMachine *TM) = nullptr;
57 ExecutionEngine *(*ExecutionEngine::MCJITCtor)(
58 std::unique_ptr<Module >M,
59 std::string *ErrorStr,
60 RTDyldMemoryManager *MCJMM,
61 TargetMachine *TM) = nullptr;
62 ExecutionEngine *(*ExecutionEngine::InterpCtor)(std::unique_ptr<Module> M,
63 std::string *ErrorStr) =nullptr;
65 ExecutionEngine::ExecutionEngine(std::unique_ptr<Module> M)
67 LazyFunctionCreator(nullptr) {
68 CompilingLazily = false;
69 GVCompilationDisabled = false;
70 SymbolSearchingDisabled = false;
72 // IR module verification is enabled by default in debug builds, and disabled
73 // by default in release builds.
77 VerifyModules = false;
80 assert(M && "Module is null?");
81 Modules.push_back(std::move(M));
84 ExecutionEngine::~ExecutionEngine() {
85 clearAllGlobalMappings();
89 /// \brief Helper class which uses a value handler to automatically deletes the
90 /// memory block when the GlobalVariable is destroyed.
91 class GVMemoryBlock : public CallbackVH {
92 GVMemoryBlock(const GlobalVariable *GV)
93 : CallbackVH(const_cast<GlobalVariable*>(GV)) {}
96 /// \brief Returns the address the GlobalVariable should be written into. The
97 /// GVMemoryBlock object prefixes that.
98 static char *Create(const GlobalVariable *GV, const DataLayout& TD) {
99 Type *ElTy = GV->getType()->getElementType();
100 size_t GVSize = (size_t)TD.getTypeAllocSize(ElTy);
101 void *RawMemory = ::operator new(
102 DataLayout::RoundUpAlignment(sizeof(GVMemoryBlock),
103 TD.getPreferredAlignment(GV))
105 new(RawMemory) GVMemoryBlock(GV);
106 return static_cast<char*>(RawMemory) + sizeof(GVMemoryBlock);
109 void deleted() override {
110 // We allocated with operator new and with some extra memory hanging off the
111 // end, so don't just delete this. I'm not sure if this is actually
113 this->~GVMemoryBlock();
114 ::operator delete(this);
117 } // anonymous namespace
119 char *ExecutionEngine::getMemoryForGV(const GlobalVariable *GV) {
120 return GVMemoryBlock::Create(GV, *getDataLayout());
123 void ExecutionEngine::addObjectFile(std::unique_ptr<object::ObjectFile> O) {
124 llvm_unreachable("ExecutionEngine subclass doesn't implement addObjectFile.");
127 void ExecutionEngine::addArchive(object::OwningBinary<object::Archive> A) {
128 llvm_unreachable("ExecutionEngine subclass doesn't implement addArchive.");
131 bool ExecutionEngine::removeModule(Module *M) {
132 for (auto I = Modules.begin(), E = Modules.end(); I != E; ++I) {
133 Module *Found = I->get();
137 clearGlobalMappingsFromModule(M);
144 Function *ExecutionEngine::FindFunctionNamed(const char *FnName) {
145 for (unsigned i = 0, e = Modules.size(); i != e; ++i) {
146 if (Function *F = Modules[i]->getFunction(FnName))
153 void *ExecutionEngineState::RemoveMapping(const GlobalValue *ToUnmap) {
154 GlobalAddressMapTy::iterator I = GlobalAddressMap.find(ToUnmap);
157 // FIXME: This is silly, we shouldn't end up with a mapping -> 0 in the
159 if (I == GlobalAddressMap.end())
163 GlobalAddressMap.erase(I);
166 GlobalAddressReverseMap.erase(OldVal);
170 void ExecutionEngine::addGlobalMapping(const GlobalValue *GV, void *Addr) {
171 MutexGuard locked(lock);
173 DEBUG(dbgs() << "JIT: Map \'" << GV->getName()
174 << "\' to [" << Addr << "]\n";);
175 void *&CurVal = EEState.getGlobalAddressMap()[GV];
176 assert((!CurVal || !Addr) && "GlobalMapping already established!");
179 // If we are using the reverse mapping, add it too.
180 if (!EEState.getGlobalAddressReverseMap().empty()) {
181 AssertingVH<const GlobalValue> &V =
182 EEState.getGlobalAddressReverseMap()[Addr];
183 assert((!V || !GV) && "GlobalMapping already established!");
188 void ExecutionEngine::clearAllGlobalMappings() {
189 MutexGuard locked(lock);
191 EEState.getGlobalAddressMap().clear();
192 EEState.getGlobalAddressReverseMap().clear();
195 void ExecutionEngine::clearGlobalMappingsFromModule(Module *M) {
196 MutexGuard locked(lock);
198 for (Module::iterator FI = M->begin(), FE = M->end(); FI != FE; ++FI)
199 EEState.RemoveMapping(FI);
200 for (Module::global_iterator GI = M->global_begin(), GE = M->global_end();
202 EEState.RemoveMapping(GI);
205 void *ExecutionEngine::updateGlobalMapping(const GlobalValue *GV, void *Addr) {
206 MutexGuard locked(lock);
208 ExecutionEngineState::GlobalAddressMapTy &Map =
209 EEState.getGlobalAddressMap();
211 // Deleting from the mapping?
213 return EEState.RemoveMapping(GV);
215 void *&CurVal = Map[GV];
216 void *OldVal = CurVal;
218 if (CurVal && !EEState.getGlobalAddressReverseMap().empty())
219 EEState.getGlobalAddressReverseMap().erase(CurVal);
222 // If we are using the reverse mapping, add it too.
223 if (!EEState.getGlobalAddressReverseMap().empty()) {
224 AssertingVH<const GlobalValue> &V =
225 EEState.getGlobalAddressReverseMap()[Addr];
226 assert((!V || !GV) && "GlobalMapping already established!");
232 void *ExecutionEngine::getPointerToGlobalIfAvailable(const GlobalValue *GV) {
233 MutexGuard locked(lock);
235 ExecutionEngineState::GlobalAddressMapTy::iterator I =
236 EEState.getGlobalAddressMap().find(GV);
237 return I != EEState.getGlobalAddressMap().end() ? I->second : nullptr;
240 const GlobalValue *ExecutionEngine::getGlobalValueAtAddress(void *Addr) {
241 MutexGuard locked(lock);
243 // If we haven't computed the reverse mapping yet, do so first.
244 if (EEState.getGlobalAddressReverseMap().empty()) {
245 for (ExecutionEngineState::GlobalAddressMapTy::iterator
246 I = EEState.getGlobalAddressMap().begin(),
247 E = EEState.getGlobalAddressMap().end(); I != E; ++I)
248 EEState.getGlobalAddressReverseMap().insert(std::make_pair(
249 I->second, I->first));
252 std::map<void *, AssertingVH<const GlobalValue> >::iterator I =
253 EEState.getGlobalAddressReverseMap().find(Addr);
254 return I != EEState.getGlobalAddressReverseMap().end() ? I->second : nullptr;
260 std::vector<char*> Values;
262 ArgvArray() : Array(nullptr) {}
263 ~ArgvArray() { clear(); }
267 for (size_t I = 0, E = Values.size(); I != E; ++I) {
272 /// Turn a vector of strings into a nice argv style array of pointers to null
273 /// terminated strings.
274 void *reset(LLVMContext &C, ExecutionEngine *EE,
275 const std::vector<std::string> &InputArgv);
277 } // anonymous namespace
278 void *ArgvArray::reset(LLVMContext &C, ExecutionEngine *EE,
279 const std::vector<std::string> &InputArgv) {
280 clear(); // Free the old contents.
281 unsigned PtrSize = EE->getDataLayout()->getPointerSize();
282 Array = new char[(InputArgv.size()+1)*PtrSize];
284 DEBUG(dbgs() << "JIT: ARGV = " << (void*)Array << "\n");
285 Type *SBytePtr = Type::getInt8PtrTy(C);
287 for (unsigned i = 0; i != InputArgv.size(); ++i) {
288 unsigned Size = InputArgv[i].size()+1;
289 char *Dest = new char[Size];
290 Values.push_back(Dest);
291 DEBUG(dbgs() << "JIT: ARGV[" << i << "] = " << (void*)Dest << "\n");
293 std::copy(InputArgv[i].begin(), InputArgv[i].end(), Dest);
296 // Endian safe: Array[i] = (PointerTy)Dest;
297 EE->StoreValueToMemory(PTOGV(Dest), (GenericValue*)(Array+i*PtrSize),
302 EE->StoreValueToMemory(PTOGV(nullptr),
303 (GenericValue*)(Array+InputArgv.size()*PtrSize),
308 void ExecutionEngine::runStaticConstructorsDestructors(Module &module,
310 const char *Name = isDtors ? "llvm.global_dtors" : "llvm.global_ctors";
311 GlobalVariable *GV = module.getNamedGlobal(Name);
313 // If this global has internal linkage, or if it has a use, then it must be
314 // an old-style (llvmgcc3) static ctor with __main linked in and in use. If
315 // this is the case, don't execute any of the global ctors, __main will do
317 if (!GV || GV->isDeclaration() || GV->hasLocalLinkage()) return;
319 // Should be an array of '{ i32, void ()* }' structs. The first value is
320 // the init priority, which we ignore.
321 ConstantArray *InitList = dyn_cast<ConstantArray>(GV->getInitializer());
324 for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i) {
325 ConstantStruct *CS = dyn_cast<ConstantStruct>(InitList->getOperand(i));
328 Constant *FP = CS->getOperand(1);
329 if (FP->isNullValue())
330 continue; // Found a sentinal value, ignore.
332 // Strip off constant expression casts.
333 if (ConstantExpr *CE = dyn_cast<ConstantExpr>(FP))
335 FP = CE->getOperand(0);
337 // Execute the ctor/dtor function!
338 if (Function *F = dyn_cast<Function>(FP))
339 runFunction(F, std::vector<GenericValue>());
341 // FIXME: It is marginally lame that we just do nothing here if we see an
342 // entry we don't recognize. It might not be unreasonable for the verifier
343 // to not even allow this and just assert here.
347 void ExecutionEngine::runStaticConstructorsDestructors(bool isDtors) {
348 // Execute global ctors/dtors for each module in the program.
349 for (std::unique_ptr<Module> &M : Modules)
350 runStaticConstructorsDestructors(*M, isDtors);
354 /// isTargetNullPtr - Return whether the target pointer stored at Loc is null.
355 static bool isTargetNullPtr(ExecutionEngine *EE, void *Loc) {
356 unsigned PtrSize = EE->getDataLayout()->getPointerSize();
357 for (unsigned i = 0; i < PtrSize; ++i)
358 if (*(i + (uint8_t*)Loc))
364 int ExecutionEngine::runFunctionAsMain(Function *Fn,
365 const std::vector<std::string> &argv,
366 const char * const * envp) {
367 std::vector<GenericValue> GVArgs;
369 GVArgc.IntVal = APInt(32, argv.size());
372 unsigned NumArgs = Fn->getFunctionType()->getNumParams();
373 FunctionType *FTy = Fn->getFunctionType();
374 Type* PPInt8Ty = Type::getInt8PtrTy(Fn->getContext())->getPointerTo();
376 // Check the argument types.
378 report_fatal_error("Invalid number of arguments of main() supplied");
379 if (NumArgs >= 3 && FTy->getParamType(2) != PPInt8Ty)
380 report_fatal_error("Invalid type for third argument of main() supplied");
381 if (NumArgs >= 2 && FTy->getParamType(1) != PPInt8Ty)
382 report_fatal_error("Invalid type for second argument of main() supplied");
383 if (NumArgs >= 1 && !FTy->getParamType(0)->isIntegerTy(32))
384 report_fatal_error("Invalid type for first argument of main() supplied");
385 if (!FTy->getReturnType()->isIntegerTy() &&
386 !FTy->getReturnType()->isVoidTy())
387 report_fatal_error("Invalid return type of main() supplied");
392 GVArgs.push_back(GVArgc); // Arg #0 = argc.
395 GVArgs.push_back(PTOGV(CArgv.reset(Fn->getContext(), this, argv)));
396 assert(!isTargetNullPtr(this, GVTOP(GVArgs[1])) &&
397 "argv[0] was null after CreateArgv");
399 std::vector<std::string> EnvVars;
400 for (unsigned i = 0; envp[i]; ++i)
401 EnvVars.push_back(envp[i]);
403 GVArgs.push_back(PTOGV(CEnv.reset(Fn->getContext(), this, EnvVars)));
408 return runFunction(Fn, GVArgs).IntVal.getZExtValue();
411 void EngineBuilder::InitEngine() {
412 WhichEngine = EngineKind::Either;
414 OptLevel = CodeGenOpt::Default;
417 Options = TargetOptions();
418 AllocateGVsWithCode = false;
419 RelocModel = Reloc::Default;
420 CMModel = CodeModel::JITDefault;
423 // IR module verification is enabled by default in debug builds, and disabled
424 // by default in release builds.
426 VerifyModules = true;
428 VerifyModules = false;
432 ExecutionEngine *EngineBuilder::create(TargetMachine *TM) {
433 std::unique_ptr<TargetMachine> TheTM(TM); // Take ownership.
435 // Make sure we can resolve symbols in the program as well. The zero arg
436 // to the function tells DynamicLibrary to load the program, not a library.
437 if (sys::DynamicLibrary::LoadLibraryPermanently(nullptr, ErrorStr))
440 assert(!(JMM && MCJMM));
442 // If the user specified a memory manager but didn't specify which engine to
443 // create, we assume they only want the JIT, and we fail if they only want
446 if (WhichEngine & EngineKind::JIT)
447 WhichEngine = EngineKind::JIT;
450 *ErrorStr = "Cannot create an interpreter with a memory manager.";
455 if (MCJMM && ! UseMCJIT) {
458 "Cannot create a legacy JIT with a runtime dyld memory "
463 // Unless the interpreter was explicitly selected or the JIT is not linked,
465 if ((WhichEngine & EngineKind::JIT) && TheTM) {
466 Triple TT(M->getTargetTriple());
467 if (!TM->getTarget().hasJIT()) {
468 errs() << "WARNING: This target JIT is not designed for the host"
469 << " you are running. If bad things happen, please choose"
470 << " a different -march switch.\n";
473 ExecutionEngine *EE = nullptr;
474 if (UseMCJIT && ExecutionEngine::MCJITCtor)
475 EE = ExecutionEngine::MCJITCtor(std::move(M), ErrorStr,
476 MCJMM ? MCJMM : JMM, TheTM.release());
477 else if (ExecutionEngine::JITCtor)
478 EE = ExecutionEngine::JITCtor(std::move(M), ErrorStr, JMM,
479 AllocateGVsWithCode, TheTM.release());
482 EE->setVerifyModules(VerifyModules);
487 // If we can't make a JIT and we didn't request one specifically, try making
488 // an interpreter instead.
489 if (WhichEngine & EngineKind::Interpreter) {
490 if (ExecutionEngine::InterpCtor)
491 return ExecutionEngine::InterpCtor(std::move(M), ErrorStr);
493 *ErrorStr = "Interpreter has not been linked in.";
497 if ((WhichEngine & EngineKind::JIT) && !ExecutionEngine::JITCtor &&
498 !ExecutionEngine::MCJITCtor) {
500 *ErrorStr = "JIT has not been linked in.";
506 void *ExecutionEngine::getPointerToGlobal(const GlobalValue *GV) {
507 if (Function *F = const_cast<Function*>(dyn_cast<Function>(GV)))
508 return getPointerToFunction(F);
510 MutexGuard locked(lock);
511 if (void *P = EEState.getGlobalAddressMap()[GV])
514 // Global variable might have been added since interpreter started.
515 if (GlobalVariable *GVar =
516 const_cast<GlobalVariable *>(dyn_cast<GlobalVariable>(GV)))
517 EmitGlobalVariable(GVar);
519 llvm_unreachable("Global hasn't had an address allocated yet!");
521 return EEState.getGlobalAddressMap()[GV];
524 /// \brief Converts a Constant* into a GenericValue, including handling of
525 /// ConstantExpr values.
526 GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
527 // If its undefined, return the garbage.
528 if (isa<UndefValue>(C)) {
530 switch (C->getType()->getTypeID()) {
533 case Type::IntegerTyID:
534 case Type::X86_FP80TyID:
535 case Type::FP128TyID:
536 case Type::PPC_FP128TyID:
537 // Although the value is undefined, we still have to construct an APInt
538 // with the correct bit width.
539 Result.IntVal = APInt(C->getType()->getPrimitiveSizeInBits(), 0);
541 case Type::StructTyID: {
542 // if the whole struct is 'undef' just reserve memory for the value.
543 if(StructType *STy = dyn_cast<StructType>(C->getType())) {
544 unsigned int elemNum = STy->getNumElements();
545 Result.AggregateVal.resize(elemNum);
546 for (unsigned int i = 0; i < elemNum; ++i) {
547 Type *ElemTy = STy->getElementType(i);
548 if (ElemTy->isIntegerTy())
549 Result.AggregateVal[i].IntVal =
550 APInt(ElemTy->getPrimitiveSizeInBits(), 0);
551 else if (ElemTy->isAggregateType()) {
552 const Constant *ElemUndef = UndefValue::get(ElemTy);
553 Result.AggregateVal[i] = getConstantValue(ElemUndef);
559 case Type::VectorTyID:
560 // if the whole vector is 'undef' just reserve memory for the value.
561 const VectorType* VTy = dyn_cast<VectorType>(C->getType());
562 const Type *ElemTy = VTy->getElementType();
563 unsigned int elemNum = VTy->getNumElements();
564 Result.AggregateVal.resize(elemNum);
565 if (ElemTy->isIntegerTy())
566 for (unsigned int i = 0; i < elemNum; ++i)
567 Result.AggregateVal[i].IntVal =
568 APInt(ElemTy->getPrimitiveSizeInBits(), 0);
574 // Otherwise, if the value is a ConstantExpr...
575 if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
576 Constant *Op0 = CE->getOperand(0);
577 switch (CE->getOpcode()) {
578 case Instruction::GetElementPtr: {
580 GenericValue Result = getConstantValue(Op0);
581 APInt Offset(DL->getPointerSizeInBits(), 0);
582 cast<GEPOperator>(CE)->accumulateConstantOffset(*DL, Offset);
584 char* tmp = (char*) Result.PointerVal;
585 Result = PTOGV(tmp + Offset.getSExtValue());
588 case Instruction::Trunc: {
589 GenericValue GV = getConstantValue(Op0);
590 uint32_t BitWidth = cast<IntegerType>(CE->getType())->getBitWidth();
591 GV.IntVal = GV.IntVal.trunc(BitWidth);
594 case Instruction::ZExt: {
595 GenericValue GV = getConstantValue(Op0);
596 uint32_t BitWidth = cast<IntegerType>(CE->getType())->getBitWidth();
597 GV.IntVal = GV.IntVal.zext(BitWidth);
600 case Instruction::SExt: {
601 GenericValue GV = getConstantValue(Op0);
602 uint32_t BitWidth = cast<IntegerType>(CE->getType())->getBitWidth();
603 GV.IntVal = GV.IntVal.sext(BitWidth);
606 case Instruction::FPTrunc: {
608 GenericValue GV = getConstantValue(Op0);
609 GV.FloatVal = float(GV.DoubleVal);
612 case Instruction::FPExt:{
614 GenericValue GV = getConstantValue(Op0);
615 GV.DoubleVal = double(GV.FloatVal);
618 case Instruction::UIToFP: {
619 GenericValue GV = getConstantValue(Op0);
620 if (CE->getType()->isFloatTy())
621 GV.FloatVal = float(GV.IntVal.roundToDouble());
622 else if (CE->getType()->isDoubleTy())
623 GV.DoubleVal = GV.IntVal.roundToDouble();
624 else if (CE->getType()->isX86_FP80Ty()) {
625 APFloat apf = APFloat::getZero(APFloat::x87DoubleExtended);
626 (void)apf.convertFromAPInt(GV.IntVal,
628 APFloat::rmNearestTiesToEven);
629 GV.IntVal = apf.bitcastToAPInt();
633 case Instruction::SIToFP: {
634 GenericValue GV = getConstantValue(Op0);
635 if (CE->getType()->isFloatTy())
636 GV.FloatVal = float(GV.IntVal.signedRoundToDouble());
637 else if (CE->getType()->isDoubleTy())
638 GV.DoubleVal = GV.IntVal.signedRoundToDouble();
639 else if (CE->getType()->isX86_FP80Ty()) {
640 APFloat apf = APFloat::getZero(APFloat::x87DoubleExtended);
641 (void)apf.convertFromAPInt(GV.IntVal,
643 APFloat::rmNearestTiesToEven);
644 GV.IntVal = apf.bitcastToAPInt();
648 case Instruction::FPToUI: // double->APInt conversion handles sign
649 case Instruction::FPToSI: {
650 GenericValue GV = getConstantValue(Op0);
651 uint32_t BitWidth = cast<IntegerType>(CE->getType())->getBitWidth();
652 if (Op0->getType()->isFloatTy())
653 GV.IntVal = APIntOps::RoundFloatToAPInt(GV.FloatVal, BitWidth);
654 else if (Op0->getType()->isDoubleTy())
655 GV.IntVal = APIntOps::RoundDoubleToAPInt(GV.DoubleVal, BitWidth);
656 else if (Op0->getType()->isX86_FP80Ty()) {
657 APFloat apf = APFloat(APFloat::x87DoubleExtended, GV.IntVal);
660 (void)apf.convertToInteger(&v, BitWidth,
661 CE->getOpcode()==Instruction::FPToSI,
662 APFloat::rmTowardZero, &ignored);
663 GV.IntVal = v; // endian?
667 case Instruction::PtrToInt: {
668 GenericValue GV = getConstantValue(Op0);
669 uint32_t PtrWidth = DL->getTypeSizeInBits(Op0->getType());
670 assert(PtrWidth <= 64 && "Bad pointer width");
671 GV.IntVal = APInt(PtrWidth, uintptr_t(GV.PointerVal));
672 uint32_t IntWidth = DL->getTypeSizeInBits(CE->getType());
673 GV.IntVal = GV.IntVal.zextOrTrunc(IntWidth);
676 case Instruction::IntToPtr: {
677 GenericValue GV = getConstantValue(Op0);
678 uint32_t PtrWidth = DL->getTypeSizeInBits(CE->getType());
679 GV.IntVal = GV.IntVal.zextOrTrunc(PtrWidth);
680 assert(GV.IntVal.getBitWidth() <= 64 && "Bad pointer width");
681 GV.PointerVal = PointerTy(uintptr_t(GV.IntVal.getZExtValue()));
684 case Instruction::BitCast: {
685 GenericValue GV = getConstantValue(Op0);
686 Type* DestTy = CE->getType();
687 switch (Op0->getType()->getTypeID()) {
688 default: llvm_unreachable("Invalid bitcast operand");
689 case Type::IntegerTyID:
690 assert(DestTy->isFloatingPointTy() && "invalid bitcast");
691 if (DestTy->isFloatTy())
692 GV.FloatVal = GV.IntVal.bitsToFloat();
693 else if (DestTy->isDoubleTy())
694 GV.DoubleVal = GV.IntVal.bitsToDouble();
696 case Type::FloatTyID:
697 assert(DestTy->isIntegerTy(32) && "Invalid bitcast");
698 GV.IntVal = APInt::floatToBits(GV.FloatVal);
700 case Type::DoubleTyID:
701 assert(DestTy->isIntegerTy(64) && "Invalid bitcast");
702 GV.IntVal = APInt::doubleToBits(GV.DoubleVal);
704 case Type::PointerTyID:
705 assert(DestTy->isPointerTy() && "Invalid bitcast");
706 break; // getConstantValue(Op0) above already converted it
710 case Instruction::Add:
711 case Instruction::FAdd:
712 case Instruction::Sub:
713 case Instruction::FSub:
714 case Instruction::Mul:
715 case Instruction::FMul:
716 case Instruction::UDiv:
717 case Instruction::SDiv:
718 case Instruction::URem:
719 case Instruction::SRem:
720 case Instruction::And:
721 case Instruction::Or:
722 case Instruction::Xor: {
723 GenericValue LHS = getConstantValue(Op0);
724 GenericValue RHS = getConstantValue(CE->getOperand(1));
726 switch (CE->getOperand(0)->getType()->getTypeID()) {
727 default: llvm_unreachable("Bad add type!");
728 case Type::IntegerTyID:
729 switch (CE->getOpcode()) {
730 default: llvm_unreachable("Invalid integer opcode");
731 case Instruction::Add: GV.IntVal = LHS.IntVal + RHS.IntVal; break;
732 case Instruction::Sub: GV.IntVal = LHS.IntVal - RHS.IntVal; break;
733 case Instruction::Mul: GV.IntVal = LHS.IntVal * RHS.IntVal; break;
734 case Instruction::UDiv:GV.IntVal = LHS.IntVal.udiv(RHS.IntVal); break;
735 case Instruction::SDiv:GV.IntVal = LHS.IntVal.sdiv(RHS.IntVal); break;
736 case Instruction::URem:GV.IntVal = LHS.IntVal.urem(RHS.IntVal); break;
737 case Instruction::SRem:GV.IntVal = LHS.IntVal.srem(RHS.IntVal); break;
738 case Instruction::And: GV.IntVal = LHS.IntVal & RHS.IntVal; break;
739 case Instruction::Or: GV.IntVal = LHS.IntVal | RHS.IntVal; break;
740 case Instruction::Xor: GV.IntVal = LHS.IntVal ^ RHS.IntVal; break;
743 case Type::FloatTyID:
744 switch (CE->getOpcode()) {
745 default: llvm_unreachable("Invalid float opcode");
746 case Instruction::FAdd:
747 GV.FloatVal = LHS.FloatVal + RHS.FloatVal; break;
748 case Instruction::FSub:
749 GV.FloatVal = LHS.FloatVal - RHS.FloatVal; break;
750 case Instruction::FMul:
751 GV.FloatVal = LHS.FloatVal * RHS.FloatVal; break;
752 case Instruction::FDiv:
753 GV.FloatVal = LHS.FloatVal / RHS.FloatVal; break;
754 case Instruction::FRem:
755 GV.FloatVal = std::fmod(LHS.FloatVal,RHS.FloatVal); break;
758 case Type::DoubleTyID:
759 switch (CE->getOpcode()) {
760 default: llvm_unreachable("Invalid double opcode");
761 case Instruction::FAdd:
762 GV.DoubleVal = LHS.DoubleVal + RHS.DoubleVal; break;
763 case Instruction::FSub:
764 GV.DoubleVal = LHS.DoubleVal - RHS.DoubleVal; break;
765 case Instruction::FMul:
766 GV.DoubleVal = LHS.DoubleVal * RHS.DoubleVal; break;
767 case Instruction::FDiv:
768 GV.DoubleVal = LHS.DoubleVal / RHS.DoubleVal; break;
769 case Instruction::FRem:
770 GV.DoubleVal = std::fmod(LHS.DoubleVal,RHS.DoubleVal); break;
773 case Type::X86_FP80TyID:
774 case Type::PPC_FP128TyID:
775 case Type::FP128TyID: {
776 const fltSemantics &Sem = CE->getOperand(0)->getType()->getFltSemantics();
777 APFloat apfLHS = APFloat(Sem, LHS.IntVal);
778 switch (CE->getOpcode()) {
779 default: llvm_unreachable("Invalid long double opcode");
780 case Instruction::FAdd:
781 apfLHS.add(APFloat(Sem, RHS.IntVal), APFloat::rmNearestTiesToEven);
782 GV.IntVal = apfLHS.bitcastToAPInt();
784 case Instruction::FSub:
785 apfLHS.subtract(APFloat(Sem, RHS.IntVal),
786 APFloat::rmNearestTiesToEven);
787 GV.IntVal = apfLHS.bitcastToAPInt();
789 case Instruction::FMul:
790 apfLHS.multiply(APFloat(Sem, RHS.IntVal),
791 APFloat::rmNearestTiesToEven);
792 GV.IntVal = apfLHS.bitcastToAPInt();
794 case Instruction::FDiv:
795 apfLHS.divide(APFloat(Sem, RHS.IntVal),
796 APFloat::rmNearestTiesToEven);
797 GV.IntVal = apfLHS.bitcastToAPInt();
799 case Instruction::FRem:
800 apfLHS.mod(APFloat(Sem, RHS.IntVal),
801 APFloat::rmNearestTiesToEven);
802 GV.IntVal = apfLHS.bitcastToAPInt();
814 SmallString<256> Msg;
815 raw_svector_ostream OS(Msg);
816 OS << "ConstantExpr not handled: " << *CE;
817 report_fatal_error(OS.str());
820 // Otherwise, we have a simple constant.
822 switch (C->getType()->getTypeID()) {
823 case Type::FloatTyID:
824 Result.FloatVal = cast<ConstantFP>(C)->getValueAPF().convertToFloat();
826 case Type::DoubleTyID:
827 Result.DoubleVal = cast<ConstantFP>(C)->getValueAPF().convertToDouble();
829 case Type::X86_FP80TyID:
830 case Type::FP128TyID:
831 case Type::PPC_FP128TyID:
832 Result.IntVal = cast <ConstantFP>(C)->getValueAPF().bitcastToAPInt();
834 case Type::IntegerTyID:
835 Result.IntVal = cast<ConstantInt>(C)->getValue();
837 case Type::PointerTyID:
838 if (isa<ConstantPointerNull>(C))
839 Result.PointerVal = nullptr;
840 else if (const Function *F = dyn_cast<Function>(C))
841 Result = PTOGV(getPointerToFunctionOrStub(const_cast<Function*>(F)));
842 else if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(C))
843 Result = PTOGV(getOrEmitGlobalVariable(const_cast<GlobalVariable*>(GV)));
844 else if (const BlockAddress *BA = dyn_cast<BlockAddress>(C))
845 Result = PTOGV(getPointerToBasicBlock(const_cast<BasicBlock*>(
846 BA->getBasicBlock())));
848 llvm_unreachable("Unknown constant pointer type!");
850 case Type::VectorTyID: {
853 const ConstantDataVector *CDV = dyn_cast<ConstantDataVector>(C);
854 const ConstantVector *CV = dyn_cast<ConstantVector>(C);
855 const ConstantAggregateZero *CAZ = dyn_cast<ConstantAggregateZero>(C);
858 elemNum = CDV->getNumElements();
859 ElemTy = CDV->getElementType();
860 } else if (CV || CAZ) {
861 VectorType* VTy = dyn_cast<VectorType>(C->getType());
862 elemNum = VTy->getNumElements();
863 ElemTy = VTy->getElementType();
865 llvm_unreachable("Unknown constant vector type!");
868 Result.AggregateVal.resize(elemNum);
869 // Check if vector holds floats.
870 if(ElemTy->isFloatTy()) {
872 GenericValue floatZero;
873 floatZero.FloatVal = 0.f;
874 std::fill(Result.AggregateVal.begin(), Result.AggregateVal.end(),
879 for (unsigned i = 0; i < elemNum; ++i)
880 if (!isa<UndefValue>(CV->getOperand(i)))
881 Result.AggregateVal[i].FloatVal = cast<ConstantFP>(
882 CV->getOperand(i))->getValueAPF().convertToFloat();
886 for (unsigned i = 0; i < elemNum; ++i)
887 Result.AggregateVal[i].FloatVal = CDV->getElementAsFloat(i);
891 // Check if vector holds doubles.
892 if (ElemTy->isDoubleTy()) {
894 GenericValue doubleZero;
895 doubleZero.DoubleVal = 0.0;
896 std::fill(Result.AggregateVal.begin(), Result.AggregateVal.end(),
901 for (unsigned i = 0; i < elemNum; ++i)
902 if (!isa<UndefValue>(CV->getOperand(i)))
903 Result.AggregateVal[i].DoubleVal = cast<ConstantFP>(
904 CV->getOperand(i))->getValueAPF().convertToDouble();
908 for (unsigned i = 0; i < elemNum; ++i)
909 Result.AggregateVal[i].DoubleVal = CDV->getElementAsDouble(i);
913 // Check if vector holds integers.
914 if (ElemTy->isIntegerTy()) {
916 GenericValue intZero;
917 intZero.IntVal = APInt(ElemTy->getScalarSizeInBits(), 0ull);
918 std::fill(Result.AggregateVal.begin(), Result.AggregateVal.end(),
923 for (unsigned i = 0; i < elemNum; ++i)
924 if (!isa<UndefValue>(CV->getOperand(i)))
925 Result.AggregateVal[i].IntVal = cast<ConstantInt>(
926 CV->getOperand(i))->getValue();
928 Result.AggregateVal[i].IntVal =
929 APInt(CV->getOperand(i)->getType()->getPrimitiveSizeInBits(), 0);
934 for (unsigned i = 0; i < elemNum; ++i)
935 Result.AggregateVal[i].IntVal = APInt(
936 CDV->getElementType()->getPrimitiveSizeInBits(),
937 CDV->getElementAsInteger(i));
941 llvm_unreachable("Unknown constant pointer type!");
946 SmallString<256> Msg;
947 raw_svector_ostream OS(Msg);
948 OS << "ERROR: Constant unimplemented for type: " << *C->getType();
949 report_fatal_error(OS.str());
955 /// StoreIntToMemory - Fills the StoreBytes bytes of memory starting from Dst
956 /// with the integer held in IntVal.
957 static void StoreIntToMemory(const APInt &IntVal, uint8_t *Dst,
958 unsigned StoreBytes) {
959 assert((IntVal.getBitWidth()+7)/8 >= StoreBytes && "Integer too small!");
960 const uint8_t *Src = (const uint8_t *)IntVal.getRawData();
962 if (sys::IsLittleEndianHost) {
963 // Little-endian host - the source is ordered from LSB to MSB. Order the
964 // destination from LSB to MSB: Do a straight copy.
965 memcpy(Dst, Src, StoreBytes);
967 // Big-endian host - the source is an array of 64 bit words ordered from
968 // LSW to MSW. Each word is ordered from MSB to LSB. Order the destination
969 // from MSB to LSB: Reverse the word order, but not the bytes in a word.
970 while (StoreBytes > sizeof(uint64_t)) {
971 StoreBytes -= sizeof(uint64_t);
972 // May not be aligned so use memcpy.
973 memcpy(Dst + StoreBytes, Src, sizeof(uint64_t));
974 Src += sizeof(uint64_t);
977 memcpy(Dst, Src + sizeof(uint64_t) - StoreBytes, StoreBytes);
981 void ExecutionEngine::StoreValueToMemory(const GenericValue &Val,
982 GenericValue *Ptr, Type *Ty) {
983 const unsigned StoreBytes = getDataLayout()->getTypeStoreSize(Ty);
985 switch (Ty->getTypeID()) {
987 dbgs() << "Cannot store value of type " << *Ty << "!\n";
989 case Type::IntegerTyID:
990 StoreIntToMemory(Val.IntVal, (uint8_t*)Ptr, StoreBytes);
992 case Type::FloatTyID:
993 *((float*)Ptr) = Val.FloatVal;
995 case Type::DoubleTyID:
996 *((double*)Ptr) = Val.DoubleVal;
998 case Type::X86_FP80TyID:
999 memcpy(Ptr, Val.IntVal.getRawData(), 10);
1001 case Type::PointerTyID:
1002 // Ensure 64 bit target pointers are fully initialized on 32 bit hosts.
1003 if (StoreBytes != sizeof(PointerTy))
1004 memset(&(Ptr->PointerVal), 0, StoreBytes);
1006 *((PointerTy*)Ptr) = Val.PointerVal;
1008 case Type::VectorTyID:
1009 for (unsigned i = 0; i < Val.AggregateVal.size(); ++i) {
1010 if (cast<VectorType>(Ty)->getElementType()->isDoubleTy())
1011 *(((double*)Ptr)+i) = Val.AggregateVal[i].DoubleVal;
1012 if (cast<VectorType>(Ty)->getElementType()->isFloatTy())
1013 *(((float*)Ptr)+i) = Val.AggregateVal[i].FloatVal;
1014 if (cast<VectorType>(Ty)->getElementType()->isIntegerTy()) {
1015 unsigned numOfBytes =(Val.AggregateVal[i].IntVal.getBitWidth()+7)/8;
1016 StoreIntToMemory(Val.AggregateVal[i].IntVal,
1017 (uint8_t*)Ptr + numOfBytes*i, numOfBytes);
1023 if (sys::IsLittleEndianHost != getDataLayout()->isLittleEndian())
1024 // Host and target are different endian - reverse the stored bytes.
1025 std::reverse((uint8_t*)Ptr, StoreBytes + (uint8_t*)Ptr);
1028 /// LoadIntFromMemory - Loads the integer stored in the LoadBytes bytes starting
1029 /// from Src into IntVal, which is assumed to be wide enough and to hold zero.
1030 static void LoadIntFromMemory(APInt &IntVal, uint8_t *Src, unsigned LoadBytes) {
1031 assert((IntVal.getBitWidth()+7)/8 >= LoadBytes && "Integer too small!");
1032 uint8_t *Dst = reinterpret_cast<uint8_t *>(
1033 const_cast<uint64_t *>(IntVal.getRawData()));
1035 if (sys::IsLittleEndianHost)
1036 // Little-endian host - the destination must be ordered from LSB to MSB.
1037 // The source is ordered from LSB to MSB: Do a straight copy.
1038 memcpy(Dst, Src, LoadBytes);
1040 // Big-endian - the destination is an array of 64 bit words ordered from
1041 // LSW to MSW. Each word must be ordered from MSB to LSB. The source is
1042 // ordered from MSB to LSB: Reverse the word order, but not the bytes in
1044 while (LoadBytes > sizeof(uint64_t)) {
1045 LoadBytes -= sizeof(uint64_t);
1046 // May not be aligned so use memcpy.
1047 memcpy(Dst, Src + LoadBytes, sizeof(uint64_t));
1048 Dst += sizeof(uint64_t);
1051 memcpy(Dst + sizeof(uint64_t) - LoadBytes, Src, LoadBytes);
1057 void ExecutionEngine::LoadValueFromMemory(GenericValue &Result,
1060 const unsigned LoadBytes = getDataLayout()->getTypeStoreSize(Ty);
1062 switch (Ty->getTypeID()) {
1063 case Type::IntegerTyID:
1064 // An APInt with all words initially zero.
1065 Result.IntVal = APInt(cast<IntegerType>(Ty)->getBitWidth(), 0);
1066 LoadIntFromMemory(Result.IntVal, (uint8_t*)Ptr, LoadBytes);
1068 case Type::FloatTyID:
1069 Result.FloatVal = *((float*)Ptr);
1071 case Type::DoubleTyID:
1072 Result.DoubleVal = *((double*)Ptr);
1074 case Type::PointerTyID:
1075 Result.PointerVal = *((PointerTy*)Ptr);
1077 case Type::X86_FP80TyID: {
1078 // This is endian dependent, but it will only work on x86 anyway.
1079 // FIXME: Will not trap if loading a signaling NaN.
1082 Result.IntVal = APInt(80, y);
1085 case Type::VectorTyID: {
1086 const VectorType *VT = cast<VectorType>(Ty);
1087 const Type *ElemT = VT->getElementType();
1088 const unsigned numElems = VT->getNumElements();
1089 if (ElemT->isFloatTy()) {
1090 Result.AggregateVal.resize(numElems);
1091 for (unsigned i = 0; i < numElems; ++i)
1092 Result.AggregateVal[i].FloatVal = *((float*)Ptr+i);
1094 if (ElemT->isDoubleTy()) {
1095 Result.AggregateVal.resize(numElems);
1096 for (unsigned i = 0; i < numElems; ++i)
1097 Result.AggregateVal[i].DoubleVal = *((double*)Ptr+i);
1099 if (ElemT->isIntegerTy()) {
1100 GenericValue intZero;
1101 const unsigned elemBitWidth = cast<IntegerType>(ElemT)->getBitWidth();
1102 intZero.IntVal = APInt(elemBitWidth, 0);
1103 Result.AggregateVal.resize(numElems, intZero);
1104 for (unsigned i = 0; i < numElems; ++i)
1105 LoadIntFromMemory(Result.AggregateVal[i].IntVal,
1106 (uint8_t*)Ptr+((elemBitWidth+7)/8)*i, (elemBitWidth+7)/8);
1111 SmallString<256> Msg;
1112 raw_svector_ostream OS(Msg);
1113 OS << "Cannot load value of type " << *Ty << "!";
1114 report_fatal_error(OS.str());
1118 void ExecutionEngine::InitializeMemory(const Constant *Init, void *Addr) {
1119 DEBUG(dbgs() << "JIT: Initializing " << Addr << " ");
1120 DEBUG(Init->dump());
1121 if (isa<UndefValue>(Init))
1124 if (const ConstantVector *CP = dyn_cast<ConstantVector>(Init)) {
1125 unsigned ElementSize =
1126 getDataLayout()->getTypeAllocSize(CP->getType()->getElementType());
1127 for (unsigned i = 0, e = CP->getNumOperands(); i != e; ++i)
1128 InitializeMemory(CP->getOperand(i), (char*)Addr+i*ElementSize);
1132 if (isa<ConstantAggregateZero>(Init)) {
1133 memset(Addr, 0, (size_t)getDataLayout()->getTypeAllocSize(Init->getType()));
1137 if (const ConstantArray *CPA = dyn_cast<ConstantArray>(Init)) {
1138 unsigned ElementSize =
1139 getDataLayout()->getTypeAllocSize(CPA->getType()->getElementType());
1140 for (unsigned i = 0, e = CPA->getNumOperands(); i != e; ++i)
1141 InitializeMemory(CPA->getOperand(i), (char*)Addr+i*ElementSize);
1145 if (const ConstantStruct *CPS = dyn_cast<ConstantStruct>(Init)) {
1146 const StructLayout *SL =
1147 getDataLayout()->getStructLayout(cast<StructType>(CPS->getType()));
1148 for (unsigned i = 0, e = CPS->getNumOperands(); i != e; ++i)
1149 InitializeMemory(CPS->getOperand(i), (char*)Addr+SL->getElementOffset(i));
1153 if (const ConstantDataSequential *CDS =
1154 dyn_cast<ConstantDataSequential>(Init)) {
1155 // CDS is already laid out in host memory order.
1156 StringRef Data = CDS->getRawDataValues();
1157 memcpy(Addr, Data.data(), Data.size());
1161 if (Init->getType()->isFirstClassType()) {
1162 GenericValue Val = getConstantValue(Init);
1163 StoreValueToMemory(Val, (GenericValue*)Addr, Init->getType());
1167 DEBUG(dbgs() << "Bad Type: " << *Init->getType() << "\n");
1168 llvm_unreachable("Unknown constant type to initialize memory with!");
1171 /// EmitGlobals - Emit all of the global variables to memory, storing their
1172 /// addresses into GlobalAddress. This must make sure to copy the contents of
1173 /// their initializers into the memory.
1174 void ExecutionEngine::emitGlobals() {
1175 // Loop over all of the global variables in the program, allocating the memory
1176 // to hold them. If there is more than one module, do a prepass over globals
1177 // to figure out how the different modules should link together.
1178 std::map<std::pair<std::string, Type*>,
1179 const GlobalValue*> LinkedGlobalsMap;
1181 if (Modules.size() != 1) {
1182 for (unsigned m = 0, e = Modules.size(); m != e; ++m) {
1183 Module &M = *Modules[m];
1184 for (const auto &GV : M.globals()) {
1185 if (GV.hasLocalLinkage() || GV.isDeclaration() ||
1186 GV.hasAppendingLinkage() || !GV.hasName())
1187 continue;// Ignore external globals and globals with internal linkage.
1189 const GlobalValue *&GVEntry =
1190 LinkedGlobalsMap[std::make_pair(GV.getName(), GV.getType())];
1192 // If this is the first time we've seen this global, it is the canonical
1199 // If the existing global is strong, never replace it.
1200 if (GVEntry->hasExternalLinkage())
1203 // Otherwise, we know it's linkonce/weak, replace it if this is a strong
1204 // symbol. FIXME is this right for common?
1205 if (GV.hasExternalLinkage() || GVEntry->hasExternalWeakLinkage())
1211 std::vector<const GlobalValue*> NonCanonicalGlobals;
1212 for (unsigned m = 0, e = Modules.size(); m != e; ++m) {
1213 Module &M = *Modules[m];
1214 for (const auto &GV : M.globals()) {
1215 // In the multi-module case, see what this global maps to.
1216 if (!LinkedGlobalsMap.empty()) {
1217 if (const GlobalValue *GVEntry =
1218 LinkedGlobalsMap[std::make_pair(GV.getName(), GV.getType())]) {
1219 // If something else is the canonical global, ignore this one.
1220 if (GVEntry != &GV) {
1221 NonCanonicalGlobals.push_back(&GV);
1227 if (!GV.isDeclaration()) {
1228 addGlobalMapping(&GV, getMemoryForGV(&GV));
1230 // External variable reference. Try to use the dynamic loader to
1231 // get a pointer to it.
1233 sys::DynamicLibrary::SearchForAddressOfSymbol(GV.getName()))
1234 addGlobalMapping(&GV, SymAddr);
1236 report_fatal_error("Could not resolve external global address: "
1242 // If there are multiple modules, map the non-canonical globals to their
1243 // canonical location.
1244 if (!NonCanonicalGlobals.empty()) {
1245 for (unsigned i = 0, e = NonCanonicalGlobals.size(); i != e; ++i) {
1246 const GlobalValue *GV = NonCanonicalGlobals[i];
1247 const GlobalValue *CGV =
1248 LinkedGlobalsMap[std::make_pair(GV->getName(), GV->getType())];
1249 void *Ptr = getPointerToGlobalIfAvailable(CGV);
1250 assert(Ptr && "Canonical global wasn't codegen'd!");
1251 addGlobalMapping(GV, Ptr);
1255 // Now that all of the globals are set up in memory, loop through them all
1256 // and initialize their contents.
1257 for (const auto &GV : M.globals()) {
1258 if (!GV.isDeclaration()) {
1259 if (!LinkedGlobalsMap.empty()) {
1260 if (const GlobalValue *GVEntry =
1261 LinkedGlobalsMap[std::make_pair(GV.getName(), GV.getType())])
1262 if (GVEntry != &GV) // Not the canonical variable.
1265 EmitGlobalVariable(&GV);
1271 // EmitGlobalVariable - This method emits the specified global variable to the
1272 // address specified in GlobalAddresses, or allocates new memory if it's not
1273 // already in the map.
1274 void ExecutionEngine::EmitGlobalVariable(const GlobalVariable *GV) {
1275 void *GA = getPointerToGlobalIfAvailable(GV);
1278 // If it's not already specified, allocate memory for the global.
1279 GA = getMemoryForGV(GV);
1281 // If we failed to allocate memory for this global, return.
1284 addGlobalMapping(GV, GA);
1287 // Don't initialize if it's thread local, let the client do it.
1288 if (!GV->isThreadLocal())
1289 InitializeMemory(GV->getInitializer(), GA);
1291 Type *ElTy = GV->getType()->getElementType();
1292 size_t GVSize = (size_t)getDataLayout()->getTypeAllocSize(ElTy);
1293 NumInitBytes += (unsigned)GVSize;
1297 ExecutionEngineState::ExecutionEngineState(ExecutionEngine &EE)
1298 : EE(EE), GlobalAddressMap(this) {
1302 ExecutionEngineState::AddressMapConfig::getMutex(ExecutionEngineState *EES) {
1303 return &EES->EE.lock;
1306 void ExecutionEngineState::AddressMapConfig::onDelete(ExecutionEngineState *EES,
1307 const GlobalValue *Old) {
1308 void *OldVal = EES->GlobalAddressMap.lookup(Old);
1309 EES->GlobalAddressReverseMap.erase(OldVal);
1312 void ExecutionEngineState::AddressMapConfig::onRAUW(ExecutionEngineState *,
1313 const GlobalValue *,
1314 const GlobalValue *) {
1315 llvm_unreachable("The ExecutionEngine doesn't know how to handle a"
1316 " RAUW on a value it has a global mapping for.");