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;
259 std::unique_ptr<char[]> Array;
260 std::vector<std::unique_ptr<char[]>> Values;
262 /// Turn a vector of strings into a nice argv style array of pointers to null
263 /// terminated strings.
264 void *reset(LLVMContext &C, ExecutionEngine *EE,
265 const std::vector<std::string> &InputArgv);
267 } // anonymous namespace
268 void *ArgvArray::reset(LLVMContext &C, ExecutionEngine *EE,
269 const std::vector<std::string> &InputArgv) {
270 Values.clear(); // Free the old contents.
271 Values.reserve(InputArgv.size());
272 unsigned PtrSize = EE->getDataLayout()->getPointerSize();
273 Array = make_unique<char[]>((InputArgv.size()+1)*PtrSize);
275 DEBUG(dbgs() << "JIT: ARGV = " << (void*)Array.get() << "\n");
276 Type *SBytePtr = Type::getInt8PtrTy(C);
278 for (unsigned i = 0; i != InputArgv.size(); ++i) {
279 unsigned Size = InputArgv[i].size()+1;
280 auto DestOwner = make_unique<char[]>(Size);
281 char *Dest = DestOwner.get();
282 Values.push_back(std::move(DestOwner));
283 DEBUG(dbgs() << "JIT: ARGV[" << i << "] = " << (void*)Dest << "\n");
285 std::copy(InputArgv[i].begin(), InputArgv[i].end(), Dest);
288 // Endian safe: Array[i] = (PointerTy)Dest;
289 EE->StoreValueToMemory(PTOGV(Dest), (GenericValue*)(&Array[i*PtrSize]),
294 EE->StoreValueToMemory(PTOGV(nullptr),
295 (GenericValue*)(&Array[InputArgv.size()*PtrSize]),
300 void ExecutionEngine::runStaticConstructorsDestructors(Module &module,
302 const char *Name = isDtors ? "llvm.global_dtors" : "llvm.global_ctors";
303 GlobalVariable *GV = module.getNamedGlobal(Name);
305 // If this global has internal linkage, or if it has a use, then it must be
306 // an old-style (llvmgcc3) static ctor with __main linked in and in use. If
307 // this is the case, don't execute any of the global ctors, __main will do
309 if (!GV || GV->isDeclaration() || GV->hasLocalLinkage()) return;
311 // Should be an array of '{ i32, void ()* }' structs. The first value is
312 // the init priority, which we ignore.
313 ConstantArray *InitList = dyn_cast<ConstantArray>(GV->getInitializer());
316 for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i) {
317 ConstantStruct *CS = dyn_cast<ConstantStruct>(InitList->getOperand(i));
320 Constant *FP = CS->getOperand(1);
321 if (FP->isNullValue())
322 continue; // Found a sentinal value, ignore.
324 // Strip off constant expression casts.
325 if (ConstantExpr *CE = dyn_cast<ConstantExpr>(FP))
327 FP = CE->getOperand(0);
329 // Execute the ctor/dtor function!
330 if (Function *F = dyn_cast<Function>(FP))
331 runFunction(F, std::vector<GenericValue>());
333 // FIXME: It is marginally lame that we just do nothing here if we see an
334 // entry we don't recognize. It might not be unreasonable for the verifier
335 // to not even allow this and just assert here.
339 void ExecutionEngine::runStaticConstructorsDestructors(bool isDtors) {
340 // Execute global ctors/dtors for each module in the program.
341 for (std::unique_ptr<Module> &M : Modules)
342 runStaticConstructorsDestructors(*M, isDtors);
346 /// isTargetNullPtr - Return whether the target pointer stored at Loc is null.
347 static bool isTargetNullPtr(ExecutionEngine *EE, void *Loc) {
348 unsigned PtrSize = EE->getDataLayout()->getPointerSize();
349 for (unsigned i = 0; i < PtrSize; ++i)
350 if (*(i + (uint8_t*)Loc))
356 int ExecutionEngine::runFunctionAsMain(Function *Fn,
357 const std::vector<std::string> &argv,
358 const char * const * envp) {
359 std::vector<GenericValue> GVArgs;
361 GVArgc.IntVal = APInt(32, argv.size());
364 unsigned NumArgs = Fn->getFunctionType()->getNumParams();
365 FunctionType *FTy = Fn->getFunctionType();
366 Type* PPInt8Ty = Type::getInt8PtrTy(Fn->getContext())->getPointerTo();
368 // Check the argument types.
370 report_fatal_error("Invalid number of arguments of main() supplied");
371 if (NumArgs >= 3 && FTy->getParamType(2) != PPInt8Ty)
372 report_fatal_error("Invalid type for third argument of main() supplied");
373 if (NumArgs >= 2 && FTy->getParamType(1) != PPInt8Ty)
374 report_fatal_error("Invalid type for second argument of main() supplied");
375 if (NumArgs >= 1 && !FTy->getParamType(0)->isIntegerTy(32))
376 report_fatal_error("Invalid type for first argument of main() supplied");
377 if (!FTy->getReturnType()->isIntegerTy() &&
378 !FTy->getReturnType()->isVoidTy())
379 report_fatal_error("Invalid return type of main() supplied");
384 GVArgs.push_back(GVArgc); // Arg #0 = argc.
387 GVArgs.push_back(PTOGV(CArgv.reset(Fn->getContext(), this, argv)));
388 assert(!isTargetNullPtr(this, GVTOP(GVArgs[1])) &&
389 "argv[0] was null after CreateArgv");
391 std::vector<std::string> EnvVars;
392 for (unsigned i = 0; envp[i]; ++i)
393 EnvVars.push_back(envp[i]);
395 GVArgs.push_back(PTOGV(CEnv.reset(Fn->getContext(), this, EnvVars)));
400 return runFunction(Fn, GVArgs).IntVal.getZExtValue();
403 void EngineBuilder::InitEngine() {
404 WhichEngine = EngineKind::Either;
406 OptLevel = CodeGenOpt::Default;
409 Options = TargetOptions();
410 AllocateGVsWithCode = false;
411 RelocModel = Reloc::Default;
412 CMModel = CodeModel::JITDefault;
415 // IR module verification is enabled by default in debug builds, and disabled
416 // by default in release builds.
418 VerifyModules = true;
420 VerifyModules = false;
424 ExecutionEngine *EngineBuilder::create(TargetMachine *TM) {
425 std::unique_ptr<TargetMachine> TheTM(TM); // Take ownership.
427 // Make sure we can resolve symbols in the program as well. The zero arg
428 // to the function tells DynamicLibrary to load the program, not a library.
429 if (sys::DynamicLibrary::LoadLibraryPermanently(nullptr, ErrorStr))
432 assert(!(JMM && MCJMM));
434 // If the user specified a memory manager but didn't specify which engine to
435 // create, we assume they only want the JIT, and we fail if they only want
438 if (WhichEngine & EngineKind::JIT)
439 WhichEngine = EngineKind::JIT;
442 *ErrorStr = "Cannot create an interpreter with a memory manager.";
447 if (MCJMM && ! UseMCJIT) {
450 "Cannot create a legacy JIT with a runtime dyld memory "
455 // Unless the interpreter was explicitly selected or the JIT is not linked,
457 if ((WhichEngine & EngineKind::JIT) && TheTM) {
458 Triple TT(M->getTargetTriple());
459 if (!TM->getTarget().hasJIT()) {
460 errs() << "WARNING: This target JIT is not designed for the host"
461 << " you are running. If bad things happen, please choose"
462 << " a different -march switch.\n";
465 ExecutionEngine *EE = nullptr;
466 if (UseMCJIT && ExecutionEngine::MCJITCtor)
467 EE = ExecutionEngine::MCJITCtor(std::move(M), ErrorStr,
468 MCJMM ? MCJMM : JMM, TheTM.release());
469 else if (ExecutionEngine::JITCtor)
470 EE = ExecutionEngine::JITCtor(std::move(M), ErrorStr, JMM,
471 AllocateGVsWithCode, TheTM.release());
474 EE->setVerifyModules(VerifyModules);
479 // If we can't make a JIT and we didn't request one specifically, try making
480 // an interpreter instead.
481 if (WhichEngine & EngineKind::Interpreter) {
482 if (ExecutionEngine::InterpCtor)
483 return ExecutionEngine::InterpCtor(std::move(M), ErrorStr);
485 *ErrorStr = "Interpreter has not been linked in.";
489 if ((WhichEngine & EngineKind::JIT) && !ExecutionEngine::JITCtor &&
490 !ExecutionEngine::MCJITCtor) {
492 *ErrorStr = "JIT has not been linked in.";
498 void *ExecutionEngine::getPointerToGlobal(const GlobalValue *GV) {
499 if (Function *F = const_cast<Function*>(dyn_cast<Function>(GV)))
500 return getPointerToFunction(F);
502 MutexGuard locked(lock);
503 if (void *P = EEState.getGlobalAddressMap()[GV])
506 // Global variable might have been added since interpreter started.
507 if (GlobalVariable *GVar =
508 const_cast<GlobalVariable *>(dyn_cast<GlobalVariable>(GV)))
509 EmitGlobalVariable(GVar);
511 llvm_unreachable("Global hasn't had an address allocated yet!");
513 return EEState.getGlobalAddressMap()[GV];
516 /// \brief Converts a Constant* into a GenericValue, including handling of
517 /// ConstantExpr values.
518 GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
519 // If its undefined, return the garbage.
520 if (isa<UndefValue>(C)) {
522 switch (C->getType()->getTypeID()) {
525 case Type::IntegerTyID:
526 case Type::X86_FP80TyID:
527 case Type::FP128TyID:
528 case Type::PPC_FP128TyID:
529 // Although the value is undefined, we still have to construct an APInt
530 // with the correct bit width.
531 Result.IntVal = APInt(C->getType()->getPrimitiveSizeInBits(), 0);
533 case Type::StructTyID: {
534 // if the whole struct is 'undef' just reserve memory for the value.
535 if(StructType *STy = dyn_cast<StructType>(C->getType())) {
536 unsigned int elemNum = STy->getNumElements();
537 Result.AggregateVal.resize(elemNum);
538 for (unsigned int i = 0; i < elemNum; ++i) {
539 Type *ElemTy = STy->getElementType(i);
540 if (ElemTy->isIntegerTy())
541 Result.AggregateVal[i].IntVal =
542 APInt(ElemTy->getPrimitiveSizeInBits(), 0);
543 else if (ElemTy->isAggregateType()) {
544 const Constant *ElemUndef = UndefValue::get(ElemTy);
545 Result.AggregateVal[i] = getConstantValue(ElemUndef);
551 case Type::VectorTyID:
552 // if the whole vector is 'undef' just reserve memory for the value.
553 const VectorType* VTy = dyn_cast<VectorType>(C->getType());
554 const Type *ElemTy = VTy->getElementType();
555 unsigned int elemNum = VTy->getNumElements();
556 Result.AggregateVal.resize(elemNum);
557 if (ElemTy->isIntegerTy())
558 for (unsigned int i = 0; i < elemNum; ++i)
559 Result.AggregateVal[i].IntVal =
560 APInt(ElemTy->getPrimitiveSizeInBits(), 0);
566 // Otherwise, if the value is a ConstantExpr...
567 if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
568 Constant *Op0 = CE->getOperand(0);
569 switch (CE->getOpcode()) {
570 case Instruction::GetElementPtr: {
572 GenericValue Result = getConstantValue(Op0);
573 APInt Offset(DL->getPointerSizeInBits(), 0);
574 cast<GEPOperator>(CE)->accumulateConstantOffset(*DL, Offset);
576 char* tmp = (char*) Result.PointerVal;
577 Result = PTOGV(tmp + Offset.getSExtValue());
580 case Instruction::Trunc: {
581 GenericValue GV = getConstantValue(Op0);
582 uint32_t BitWidth = cast<IntegerType>(CE->getType())->getBitWidth();
583 GV.IntVal = GV.IntVal.trunc(BitWidth);
586 case Instruction::ZExt: {
587 GenericValue GV = getConstantValue(Op0);
588 uint32_t BitWidth = cast<IntegerType>(CE->getType())->getBitWidth();
589 GV.IntVal = GV.IntVal.zext(BitWidth);
592 case Instruction::SExt: {
593 GenericValue GV = getConstantValue(Op0);
594 uint32_t BitWidth = cast<IntegerType>(CE->getType())->getBitWidth();
595 GV.IntVal = GV.IntVal.sext(BitWidth);
598 case Instruction::FPTrunc: {
600 GenericValue GV = getConstantValue(Op0);
601 GV.FloatVal = float(GV.DoubleVal);
604 case Instruction::FPExt:{
606 GenericValue GV = getConstantValue(Op0);
607 GV.DoubleVal = double(GV.FloatVal);
610 case Instruction::UIToFP: {
611 GenericValue GV = getConstantValue(Op0);
612 if (CE->getType()->isFloatTy())
613 GV.FloatVal = float(GV.IntVal.roundToDouble());
614 else if (CE->getType()->isDoubleTy())
615 GV.DoubleVal = GV.IntVal.roundToDouble();
616 else if (CE->getType()->isX86_FP80Ty()) {
617 APFloat apf = APFloat::getZero(APFloat::x87DoubleExtended);
618 (void)apf.convertFromAPInt(GV.IntVal,
620 APFloat::rmNearestTiesToEven);
621 GV.IntVal = apf.bitcastToAPInt();
625 case Instruction::SIToFP: {
626 GenericValue GV = getConstantValue(Op0);
627 if (CE->getType()->isFloatTy())
628 GV.FloatVal = float(GV.IntVal.signedRoundToDouble());
629 else if (CE->getType()->isDoubleTy())
630 GV.DoubleVal = GV.IntVal.signedRoundToDouble();
631 else if (CE->getType()->isX86_FP80Ty()) {
632 APFloat apf = APFloat::getZero(APFloat::x87DoubleExtended);
633 (void)apf.convertFromAPInt(GV.IntVal,
635 APFloat::rmNearestTiesToEven);
636 GV.IntVal = apf.bitcastToAPInt();
640 case Instruction::FPToUI: // double->APInt conversion handles sign
641 case Instruction::FPToSI: {
642 GenericValue GV = getConstantValue(Op0);
643 uint32_t BitWidth = cast<IntegerType>(CE->getType())->getBitWidth();
644 if (Op0->getType()->isFloatTy())
645 GV.IntVal = APIntOps::RoundFloatToAPInt(GV.FloatVal, BitWidth);
646 else if (Op0->getType()->isDoubleTy())
647 GV.IntVal = APIntOps::RoundDoubleToAPInt(GV.DoubleVal, BitWidth);
648 else if (Op0->getType()->isX86_FP80Ty()) {
649 APFloat apf = APFloat(APFloat::x87DoubleExtended, GV.IntVal);
652 (void)apf.convertToInteger(&v, BitWidth,
653 CE->getOpcode()==Instruction::FPToSI,
654 APFloat::rmTowardZero, &ignored);
655 GV.IntVal = v; // endian?
659 case Instruction::PtrToInt: {
660 GenericValue GV = getConstantValue(Op0);
661 uint32_t PtrWidth = DL->getTypeSizeInBits(Op0->getType());
662 assert(PtrWidth <= 64 && "Bad pointer width");
663 GV.IntVal = APInt(PtrWidth, uintptr_t(GV.PointerVal));
664 uint32_t IntWidth = DL->getTypeSizeInBits(CE->getType());
665 GV.IntVal = GV.IntVal.zextOrTrunc(IntWidth);
668 case Instruction::IntToPtr: {
669 GenericValue GV = getConstantValue(Op0);
670 uint32_t PtrWidth = DL->getTypeSizeInBits(CE->getType());
671 GV.IntVal = GV.IntVal.zextOrTrunc(PtrWidth);
672 assert(GV.IntVal.getBitWidth() <= 64 && "Bad pointer width");
673 GV.PointerVal = PointerTy(uintptr_t(GV.IntVal.getZExtValue()));
676 case Instruction::BitCast: {
677 GenericValue GV = getConstantValue(Op0);
678 Type* DestTy = CE->getType();
679 switch (Op0->getType()->getTypeID()) {
680 default: llvm_unreachable("Invalid bitcast operand");
681 case Type::IntegerTyID:
682 assert(DestTy->isFloatingPointTy() && "invalid bitcast");
683 if (DestTy->isFloatTy())
684 GV.FloatVal = GV.IntVal.bitsToFloat();
685 else if (DestTy->isDoubleTy())
686 GV.DoubleVal = GV.IntVal.bitsToDouble();
688 case Type::FloatTyID:
689 assert(DestTy->isIntegerTy(32) && "Invalid bitcast");
690 GV.IntVal = APInt::floatToBits(GV.FloatVal);
692 case Type::DoubleTyID:
693 assert(DestTy->isIntegerTy(64) && "Invalid bitcast");
694 GV.IntVal = APInt::doubleToBits(GV.DoubleVal);
696 case Type::PointerTyID:
697 assert(DestTy->isPointerTy() && "Invalid bitcast");
698 break; // getConstantValue(Op0) above already converted it
702 case Instruction::Add:
703 case Instruction::FAdd:
704 case Instruction::Sub:
705 case Instruction::FSub:
706 case Instruction::Mul:
707 case Instruction::FMul:
708 case Instruction::UDiv:
709 case Instruction::SDiv:
710 case Instruction::URem:
711 case Instruction::SRem:
712 case Instruction::And:
713 case Instruction::Or:
714 case Instruction::Xor: {
715 GenericValue LHS = getConstantValue(Op0);
716 GenericValue RHS = getConstantValue(CE->getOperand(1));
718 switch (CE->getOperand(0)->getType()->getTypeID()) {
719 default: llvm_unreachable("Bad add type!");
720 case Type::IntegerTyID:
721 switch (CE->getOpcode()) {
722 default: llvm_unreachable("Invalid integer opcode");
723 case Instruction::Add: GV.IntVal = LHS.IntVal + RHS.IntVal; break;
724 case Instruction::Sub: GV.IntVal = LHS.IntVal - RHS.IntVal; break;
725 case Instruction::Mul: GV.IntVal = LHS.IntVal * RHS.IntVal; break;
726 case Instruction::UDiv:GV.IntVal = LHS.IntVal.udiv(RHS.IntVal); break;
727 case Instruction::SDiv:GV.IntVal = LHS.IntVal.sdiv(RHS.IntVal); break;
728 case Instruction::URem:GV.IntVal = LHS.IntVal.urem(RHS.IntVal); break;
729 case Instruction::SRem:GV.IntVal = LHS.IntVal.srem(RHS.IntVal); break;
730 case Instruction::And: GV.IntVal = LHS.IntVal & RHS.IntVal; break;
731 case Instruction::Or: GV.IntVal = LHS.IntVal | RHS.IntVal; break;
732 case Instruction::Xor: GV.IntVal = LHS.IntVal ^ RHS.IntVal; break;
735 case Type::FloatTyID:
736 switch (CE->getOpcode()) {
737 default: llvm_unreachable("Invalid float opcode");
738 case Instruction::FAdd:
739 GV.FloatVal = LHS.FloatVal + RHS.FloatVal; break;
740 case Instruction::FSub:
741 GV.FloatVal = LHS.FloatVal - RHS.FloatVal; break;
742 case Instruction::FMul:
743 GV.FloatVal = LHS.FloatVal * RHS.FloatVal; break;
744 case Instruction::FDiv:
745 GV.FloatVal = LHS.FloatVal / RHS.FloatVal; break;
746 case Instruction::FRem:
747 GV.FloatVal = std::fmod(LHS.FloatVal,RHS.FloatVal); break;
750 case Type::DoubleTyID:
751 switch (CE->getOpcode()) {
752 default: llvm_unreachable("Invalid double opcode");
753 case Instruction::FAdd:
754 GV.DoubleVal = LHS.DoubleVal + RHS.DoubleVal; break;
755 case Instruction::FSub:
756 GV.DoubleVal = LHS.DoubleVal - RHS.DoubleVal; break;
757 case Instruction::FMul:
758 GV.DoubleVal = LHS.DoubleVal * RHS.DoubleVal; break;
759 case Instruction::FDiv:
760 GV.DoubleVal = LHS.DoubleVal / RHS.DoubleVal; break;
761 case Instruction::FRem:
762 GV.DoubleVal = std::fmod(LHS.DoubleVal,RHS.DoubleVal); break;
765 case Type::X86_FP80TyID:
766 case Type::PPC_FP128TyID:
767 case Type::FP128TyID: {
768 const fltSemantics &Sem = CE->getOperand(0)->getType()->getFltSemantics();
769 APFloat apfLHS = APFloat(Sem, LHS.IntVal);
770 switch (CE->getOpcode()) {
771 default: llvm_unreachable("Invalid long double opcode");
772 case Instruction::FAdd:
773 apfLHS.add(APFloat(Sem, RHS.IntVal), APFloat::rmNearestTiesToEven);
774 GV.IntVal = apfLHS.bitcastToAPInt();
776 case Instruction::FSub:
777 apfLHS.subtract(APFloat(Sem, RHS.IntVal),
778 APFloat::rmNearestTiesToEven);
779 GV.IntVal = apfLHS.bitcastToAPInt();
781 case Instruction::FMul:
782 apfLHS.multiply(APFloat(Sem, RHS.IntVal),
783 APFloat::rmNearestTiesToEven);
784 GV.IntVal = apfLHS.bitcastToAPInt();
786 case Instruction::FDiv:
787 apfLHS.divide(APFloat(Sem, RHS.IntVal),
788 APFloat::rmNearestTiesToEven);
789 GV.IntVal = apfLHS.bitcastToAPInt();
791 case Instruction::FRem:
792 apfLHS.mod(APFloat(Sem, RHS.IntVal),
793 APFloat::rmNearestTiesToEven);
794 GV.IntVal = apfLHS.bitcastToAPInt();
806 SmallString<256> Msg;
807 raw_svector_ostream OS(Msg);
808 OS << "ConstantExpr not handled: " << *CE;
809 report_fatal_error(OS.str());
812 // Otherwise, we have a simple constant.
814 switch (C->getType()->getTypeID()) {
815 case Type::FloatTyID:
816 Result.FloatVal = cast<ConstantFP>(C)->getValueAPF().convertToFloat();
818 case Type::DoubleTyID:
819 Result.DoubleVal = cast<ConstantFP>(C)->getValueAPF().convertToDouble();
821 case Type::X86_FP80TyID:
822 case Type::FP128TyID:
823 case Type::PPC_FP128TyID:
824 Result.IntVal = cast <ConstantFP>(C)->getValueAPF().bitcastToAPInt();
826 case Type::IntegerTyID:
827 Result.IntVal = cast<ConstantInt>(C)->getValue();
829 case Type::PointerTyID:
830 if (isa<ConstantPointerNull>(C))
831 Result.PointerVal = nullptr;
832 else if (const Function *F = dyn_cast<Function>(C))
833 Result = PTOGV(getPointerToFunctionOrStub(const_cast<Function*>(F)));
834 else if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(C))
835 Result = PTOGV(getOrEmitGlobalVariable(const_cast<GlobalVariable*>(GV)));
836 else if (const BlockAddress *BA = dyn_cast<BlockAddress>(C))
837 Result = PTOGV(getPointerToBasicBlock(const_cast<BasicBlock*>(
838 BA->getBasicBlock())));
840 llvm_unreachable("Unknown constant pointer type!");
842 case Type::VectorTyID: {
845 const ConstantDataVector *CDV = dyn_cast<ConstantDataVector>(C);
846 const ConstantVector *CV = dyn_cast<ConstantVector>(C);
847 const ConstantAggregateZero *CAZ = dyn_cast<ConstantAggregateZero>(C);
850 elemNum = CDV->getNumElements();
851 ElemTy = CDV->getElementType();
852 } else if (CV || CAZ) {
853 VectorType* VTy = dyn_cast<VectorType>(C->getType());
854 elemNum = VTy->getNumElements();
855 ElemTy = VTy->getElementType();
857 llvm_unreachable("Unknown constant vector type!");
860 Result.AggregateVal.resize(elemNum);
861 // Check if vector holds floats.
862 if(ElemTy->isFloatTy()) {
864 GenericValue floatZero;
865 floatZero.FloatVal = 0.f;
866 std::fill(Result.AggregateVal.begin(), Result.AggregateVal.end(),
871 for (unsigned i = 0; i < elemNum; ++i)
872 if (!isa<UndefValue>(CV->getOperand(i)))
873 Result.AggregateVal[i].FloatVal = cast<ConstantFP>(
874 CV->getOperand(i))->getValueAPF().convertToFloat();
878 for (unsigned i = 0; i < elemNum; ++i)
879 Result.AggregateVal[i].FloatVal = CDV->getElementAsFloat(i);
883 // Check if vector holds doubles.
884 if (ElemTy->isDoubleTy()) {
886 GenericValue doubleZero;
887 doubleZero.DoubleVal = 0.0;
888 std::fill(Result.AggregateVal.begin(), Result.AggregateVal.end(),
893 for (unsigned i = 0; i < elemNum; ++i)
894 if (!isa<UndefValue>(CV->getOperand(i)))
895 Result.AggregateVal[i].DoubleVal = cast<ConstantFP>(
896 CV->getOperand(i))->getValueAPF().convertToDouble();
900 for (unsigned i = 0; i < elemNum; ++i)
901 Result.AggregateVal[i].DoubleVal = CDV->getElementAsDouble(i);
905 // Check if vector holds integers.
906 if (ElemTy->isIntegerTy()) {
908 GenericValue intZero;
909 intZero.IntVal = APInt(ElemTy->getScalarSizeInBits(), 0ull);
910 std::fill(Result.AggregateVal.begin(), Result.AggregateVal.end(),
915 for (unsigned i = 0; i < elemNum; ++i)
916 if (!isa<UndefValue>(CV->getOperand(i)))
917 Result.AggregateVal[i].IntVal = cast<ConstantInt>(
918 CV->getOperand(i))->getValue();
920 Result.AggregateVal[i].IntVal =
921 APInt(CV->getOperand(i)->getType()->getPrimitiveSizeInBits(), 0);
926 for (unsigned i = 0; i < elemNum; ++i)
927 Result.AggregateVal[i].IntVal = APInt(
928 CDV->getElementType()->getPrimitiveSizeInBits(),
929 CDV->getElementAsInteger(i));
933 llvm_unreachable("Unknown constant pointer type!");
938 SmallString<256> Msg;
939 raw_svector_ostream OS(Msg);
940 OS << "ERROR: Constant unimplemented for type: " << *C->getType();
941 report_fatal_error(OS.str());
947 /// StoreIntToMemory - Fills the StoreBytes bytes of memory starting from Dst
948 /// with the integer held in IntVal.
949 static void StoreIntToMemory(const APInt &IntVal, uint8_t *Dst,
950 unsigned StoreBytes) {
951 assert((IntVal.getBitWidth()+7)/8 >= StoreBytes && "Integer too small!");
952 const uint8_t *Src = (const uint8_t *)IntVal.getRawData();
954 if (sys::IsLittleEndianHost) {
955 // Little-endian host - the source is ordered from LSB to MSB. Order the
956 // destination from LSB to MSB: Do a straight copy.
957 memcpy(Dst, Src, StoreBytes);
959 // Big-endian host - the source is an array of 64 bit words ordered from
960 // LSW to MSW. Each word is ordered from MSB to LSB. Order the destination
961 // from MSB to LSB: Reverse the word order, but not the bytes in a word.
962 while (StoreBytes > sizeof(uint64_t)) {
963 StoreBytes -= sizeof(uint64_t);
964 // May not be aligned so use memcpy.
965 memcpy(Dst + StoreBytes, Src, sizeof(uint64_t));
966 Src += sizeof(uint64_t);
969 memcpy(Dst, Src + sizeof(uint64_t) - StoreBytes, StoreBytes);
973 void ExecutionEngine::StoreValueToMemory(const GenericValue &Val,
974 GenericValue *Ptr, Type *Ty) {
975 const unsigned StoreBytes = getDataLayout()->getTypeStoreSize(Ty);
977 switch (Ty->getTypeID()) {
979 dbgs() << "Cannot store value of type " << *Ty << "!\n";
981 case Type::IntegerTyID:
982 StoreIntToMemory(Val.IntVal, (uint8_t*)Ptr, StoreBytes);
984 case Type::FloatTyID:
985 *((float*)Ptr) = Val.FloatVal;
987 case Type::DoubleTyID:
988 *((double*)Ptr) = Val.DoubleVal;
990 case Type::X86_FP80TyID:
991 memcpy(Ptr, Val.IntVal.getRawData(), 10);
993 case Type::PointerTyID:
994 // Ensure 64 bit target pointers are fully initialized on 32 bit hosts.
995 if (StoreBytes != sizeof(PointerTy))
996 memset(&(Ptr->PointerVal), 0, StoreBytes);
998 *((PointerTy*)Ptr) = Val.PointerVal;
1000 case Type::VectorTyID:
1001 for (unsigned i = 0; i < Val.AggregateVal.size(); ++i) {
1002 if (cast<VectorType>(Ty)->getElementType()->isDoubleTy())
1003 *(((double*)Ptr)+i) = Val.AggregateVal[i].DoubleVal;
1004 if (cast<VectorType>(Ty)->getElementType()->isFloatTy())
1005 *(((float*)Ptr)+i) = Val.AggregateVal[i].FloatVal;
1006 if (cast<VectorType>(Ty)->getElementType()->isIntegerTy()) {
1007 unsigned numOfBytes =(Val.AggregateVal[i].IntVal.getBitWidth()+7)/8;
1008 StoreIntToMemory(Val.AggregateVal[i].IntVal,
1009 (uint8_t*)Ptr + numOfBytes*i, numOfBytes);
1015 if (sys::IsLittleEndianHost != getDataLayout()->isLittleEndian())
1016 // Host and target are different endian - reverse the stored bytes.
1017 std::reverse((uint8_t*)Ptr, StoreBytes + (uint8_t*)Ptr);
1020 /// LoadIntFromMemory - Loads the integer stored in the LoadBytes bytes starting
1021 /// from Src into IntVal, which is assumed to be wide enough and to hold zero.
1022 static void LoadIntFromMemory(APInt &IntVal, uint8_t *Src, unsigned LoadBytes) {
1023 assert((IntVal.getBitWidth()+7)/8 >= LoadBytes && "Integer too small!");
1024 uint8_t *Dst = reinterpret_cast<uint8_t *>(
1025 const_cast<uint64_t *>(IntVal.getRawData()));
1027 if (sys::IsLittleEndianHost)
1028 // Little-endian host - the destination must be ordered from LSB to MSB.
1029 // The source is ordered from LSB to MSB: Do a straight copy.
1030 memcpy(Dst, Src, LoadBytes);
1032 // Big-endian - the destination is an array of 64 bit words ordered from
1033 // LSW to MSW. Each word must be ordered from MSB to LSB. The source is
1034 // ordered from MSB to LSB: Reverse the word order, but not the bytes in
1036 while (LoadBytes > sizeof(uint64_t)) {
1037 LoadBytes -= sizeof(uint64_t);
1038 // May not be aligned so use memcpy.
1039 memcpy(Dst, Src + LoadBytes, sizeof(uint64_t));
1040 Dst += sizeof(uint64_t);
1043 memcpy(Dst + sizeof(uint64_t) - LoadBytes, Src, LoadBytes);
1049 void ExecutionEngine::LoadValueFromMemory(GenericValue &Result,
1052 const unsigned LoadBytes = getDataLayout()->getTypeStoreSize(Ty);
1054 switch (Ty->getTypeID()) {
1055 case Type::IntegerTyID:
1056 // An APInt with all words initially zero.
1057 Result.IntVal = APInt(cast<IntegerType>(Ty)->getBitWidth(), 0);
1058 LoadIntFromMemory(Result.IntVal, (uint8_t*)Ptr, LoadBytes);
1060 case Type::FloatTyID:
1061 Result.FloatVal = *((float*)Ptr);
1063 case Type::DoubleTyID:
1064 Result.DoubleVal = *((double*)Ptr);
1066 case Type::PointerTyID:
1067 Result.PointerVal = *((PointerTy*)Ptr);
1069 case Type::X86_FP80TyID: {
1070 // This is endian dependent, but it will only work on x86 anyway.
1071 // FIXME: Will not trap if loading a signaling NaN.
1074 Result.IntVal = APInt(80, y);
1077 case Type::VectorTyID: {
1078 const VectorType *VT = cast<VectorType>(Ty);
1079 const Type *ElemT = VT->getElementType();
1080 const unsigned numElems = VT->getNumElements();
1081 if (ElemT->isFloatTy()) {
1082 Result.AggregateVal.resize(numElems);
1083 for (unsigned i = 0; i < numElems; ++i)
1084 Result.AggregateVal[i].FloatVal = *((float*)Ptr+i);
1086 if (ElemT->isDoubleTy()) {
1087 Result.AggregateVal.resize(numElems);
1088 for (unsigned i = 0; i < numElems; ++i)
1089 Result.AggregateVal[i].DoubleVal = *((double*)Ptr+i);
1091 if (ElemT->isIntegerTy()) {
1092 GenericValue intZero;
1093 const unsigned elemBitWidth = cast<IntegerType>(ElemT)->getBitWidth();
1094 intZero.IntVal = APInt(elemBitWidth, 0);
1095 Result.AggregateVal.resize(numElems, intZero);
1096 for (unsigned i = 0; i < numElems; ++i)
1097 LoadIntFromMemory(Result.AggregateVal[i].IntVal,
1098 (uint8_t*)Ptr+((elemBitWidth+7)/8)*i, (elemBitWidth+7)/8);
1103 SmallString<256> Msg;
1104 raw_svector_ostream OS(Msg);
1105 OS << "Cannot load value of type " << *Ty << "!";
1106 report_fatal_error(OS.str());
1110 void ExecutionEngine::InitializeMemory(const Constant *Init, void *Addr) {
1111 DEBUG(dbgs() << "JIT: Initializing " << Addr << " ");
1112 DEBUG(Init->dump());
1113 if (isa<UndefValue>(Init))
1116 if (const ConstantVector *CP = dyn_cast<ConstantVector>(Init)) {
1117 unsigned ElementSize =
1118 getDataLayout()->getTypeAllocSize(CP->getType()->getElementType());
1119 for (unsigned i = 0, e = CP->getNumOperands(); i != e; ++i)
1120 InitializeMemory(CP->getOperand(i), (char*)Addr+i*ElementSize);
1124 if (isa<ConstantAggregateZero>(Init)) {
1125 memset(Addr, 0, (size_t)getDataLayout()->getTypeAllocSize(Init->getType()));
1129 if (const ConstantArray *CPA = dyn_cast<ConstantArray>(Init)) {
1130 unsigned ElementSize =
1131 getDataLayout()->getTypeAllocSize(CPA->getType()->getElementType());
1132 for (unsigned i = 0, e = CPA->getNumOperands(); i != e; ++i)
1133 InitializeMemory(CPA->getOperand(i), (char*)Addr+i*ElementSize);
1137 if (const ConstantStruct *CPS = dyn_cast<ConstantStruct>(Init)) {
1138 const StructLayout *SL =
1139 getDataLayout()->getStructLayout(cast<StructType>(CPS->getType()));
1140 for (unsigned i = 0, e = CPS->getNumOperands(); i != e; ++i)
1141 InitializeMemory(CPS->getOperand(i), (char*)Addr+SL->getElementOffset(i));
1145 if (const ConstantDataSequential *CDS =
1146 dyn_cast<ConstantDataSequential>(Init)) {
1147 // CDS is already laid out in host memory order.
1148 StringRef Data = CDS->getRawDataValues();
1149 memcpy(Addr, Data.data(), Data.size());
1153 if (Init->getType()->isFirstClassType()) {
1154 GenericValue Val = getConstantValue(Init);
1155 StoreValueToMemory(Val, (GenericValue*)Addr, Init->getType());
1159 DEBUG(dbgs() << "Bad Type: " << *Init->getType() << "\n");
1160 llvm_unreachable("Unknown constant type to initialize memory with!");
1163 /// EmitGlobals - Emit all of the global variables to memory, storing their
1164 /// addresses into GlobalAddress. This must make sure to copy the contents of
1165 /// their initializers into the memory.
1166 void ExecutionEngine::emitGlobals() {
1167 // Loop over all of the global variables in the program, allocating the memory
1168 // to hold them. If there is more than one module, do a prepass over globals
1169 // to figure out how the different modules should link together.
1170 std::map<std::pair<std::string, Type*>,
1171 const GlobalValue*> LinkedGlobalsMap;
1173 if (Modules.size() != 1) {
1174 for (unsigned m = 0, e = Modules.size(); m != e; ++m) {
1175 Module &M = *Modules[m];
1176 for (const auto &GV : M.globals()) {
1177 if (GV.hasLocalLinkage() || GV.isDeclaration() ||
1178 GV.hasAppendingLinkage() || !GV.hasName())
1179 continue;// Ignore external globals and globals with internal linkage.
1181 const GlobalValue *&GVEntry =
1182 LinkedGlobalsMap[std::make_pair(GV.getName(), GV.getType())];
1184 // If this is the first time we've seen this global, it is the canonical
1191 // If the existing global is strong, never replace it.
1192 if (GVEntry->hasExternalLinkage())
1195 // Otherwise, we know it's linkonce/weak, replace it if this is a strong
1196 // symbol. FIXME is this right for common?
1197 if (GV.hasExternalLinkage() || GVEntry->hasExternalWeakLinkage())
1203 std::vector<const GlobalValue*> NonCanonicalGlobals;
1204 for (unsigned m = 0, e = Modules.size(); m != e; ++m) {
1205 Module &M = *Modules[m];
1206 for (const auto &GV : M.globals()) {
1207 // In the multi-module case, see what this global maps to.
1208 if (!LinkedGlobalsMap.empty()) {
1209 if (const GlobalValue *GVEntry =
1210 LinkedGlobalsMap[std::make_pair(GV.getName(), GV.getType())]) {
1211 // If something else is the canonical global, ignore this one.
1212 if (GVEntry != &GV) {
1213 NonCanonicalGlobals.push_back(&GV);
1219 if (!GV.isDeclaration()) {
1220 addGlobalMapping(&GV, getMemoryForGV(&GV));
1222 // External variable reference. Try to use the dynamic loader to
1223 // get a pointer to it.
1225 sys::DynamicLibrary::SearchForAddressOfSymbol(GV.getName()))
1226 addGlobalMapping(&GV, SymAddr);
1228 report_fatal_error("Could not resolve external global address: "
1234 // If there are multiple modules, map the non-canonical globals to their
1235 // canonical location.
1236 if (!NonCanonicalGlobals.empty()) {
1237 for (unsigned i = 0, e = NonCanonicalGlobals.size(); i != e; ++i) {
1238 const GlobalValue *GV = NonCanonicalGlobals[i];
1239 const GlobalValue *CGV =
1240 LinkedGlobalsMap[std::make_pair(GV->getName(), GV->getType())];
1241 void *Ptr = getPointerToGlobalIfAvailable(CGV);
1242 assert(Ptr && "Canonical global wasn't codegen'd!");
1243 addGlobalMapping(GV, Ptr);
1247 // Now that all of the globals are set up in memory, loop through them all
1248 // and initialize their contents.
1249 for (const auto &GV : M.globals()) {
1250 if (!GV.isDeclaration()) {
1251 if (!LinkedGlobalsMap.empty()) {
1252 if (const GlobalValue *GVEntry =
1253 LinkedGlobalsMap[std::make_pair(GV.getName(), GV.getType())])
1254 if (GVEntry != &GV) // Not the canonical variable.
1257 EmitGlobalVariable(&GV);
1263 // EmitGlobalVariable - This method emits the specified global variable to the
1264 // address specified in GlobalAddresses, or allocates new memory if it's not
1265 // already in the map.
1266 void ExecutionEngine::EmitGlobalVariable(const GlobalVariable *GV) {
1267 void *GA = getPointerToGlobalIfAvailable(GV);
1270 // If it's not already specified, allocate memory for the global.
1271 GA = getMemoryForGV(GV);
1273 // If we failed to allocate memory for this global, return.
1276 addGlobalMapping(GV, GA);
1279 // Don't initialize if it's thread local, let the client do it.
1280 if (!GV->isThreadLocal())
1281 InitializeMemory(GV->getInitializer(), GA);
1283 Type *ElTy = GV->getType()->getElementType();
1284 size_t GVSize = (size_t)getDataLayout()->getTypeAllocSize(ElTy);
1285 NumInitBytes += (unsigned)GVSize;
1289 ExecutionEngineState::ExecutionEngineState(ExecutionEngine &EE)
1290 : EE(EE), GlobalAddressMap(this) {
1294 ExecutionEngineState::AddressMapConfig::getMutex(ExecutionEngineState *EES) {
1295 return &EES->EE.lock;
1298 void ExecutionEngineState::AddressMapConfig::onDelete(ExecutionEngineState *EES,
1299 const GlobalValue *Old) {
1300 void *OldVal = EES->GlobalAddressMap.lookup(Old);
1301 EES->GlobalAddressReverseMap.erase(OldVal);
1304 void ExecutionEngineState::AddressMapConfig::onRAUW(ExecutionEngineState *,
1305 const GlobalValue *,
1306 const GlobalValue *) {
1307 llvm_unreachable("The ExecutionEngine doesn't know how to handle a"
1308 " RAUW on a value it has a global mapping for.");