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/ObjectFile.h"
28 #include "llvm/Support/Debug.h"
29 #include "llvm/Support/DynamicLibrary.h"
30 #include "llvm/Support/ErrorHandling.h"
31 #include "llvm/Support/Host.h"
32 #include "llvm/Support/MutexGuard.h"
33 #include "llvm/Support/TargetRegistry.h"
34 #include "llvm/Support/raw_ostream.h"
35 #include "llvm/Target/TargetMachine.h"
40 #define DEBUG_TYPE "jit"
42 STATISTIC(NumInitBytes, "Number of bytes of global vars initialized");
43 STATISTIC(NumGlobals , "Number of global vars initialized");
45 // Pin the vtable to this file.
46 void ObjectCache::anchor() {}
47 void ObjectBuffer::anchor() {}
48 void ObjectBufferStream::anchor() {}
50 ExecutionEngine *(*ExecutionEngine::JITCtor)(
52 std::string *ErrorStr,
53 JITMemoryManager *JMM,
55 TargetMachine *TM) = nullptr;
56 ExecutionEngine *(*ExecutionEngine::MCJITCtor)(
58 std::string *ErrorStr,
59 RTDyldMemoryManager *MCJMM,
60 TargetMachine *TM) = nullptr;
61 ExecutionEngine *(*ExecutionEngine::InterpCtor)(Module *M,
62 std::string *ErrorStr) =nullptr;
64 ExecutionEngine::ExecutionEngine(Module *M)
66 LazyFunctionCreator(nullptr) {
67 CompilingLazily = false;
68 GVCompilationDisabled = false;
69 SymbolSearchingDisabled = false;
71 // IR module verification is enabled by default in debug builds, and disabled
72 // by default in release builds.
76 VerifyModules = false;
80 assert(M && "Module is null?");
83 ExecutionEngine::~ExecutionEngine() {
84 clearAllGlobalMappings();
85 for (unsigned i = 0, e = Modules.size(); i != e; ++i)
90 /// \brief Helper class which uses a value handler to automatically deletes the
91 /// memory block when the GlobalVariable is destroyed.
92 class GVMemoryBlock : public CallbackVH {
93 GVMemoryBlock(const GlobalVariable *GV)
94 : CallbackVH(const_cast<GlobalVariable*>(GV)) {}
97 /// \brief Returns the address the GlobalVariable should be written into. The
98 /// GVMemoryBlock object prefixes that.
99 static char *Create(const GlobalVariable *GV, const DataLayout& TD) {
100 Type *ElTy = GV->getType()->getElementType();
101 size_t GVSize = (size_t)TD.getTypeAllocSize(ElTy);
102 void *RawMemory = ::operator new(
103 DataLayout::RoundUpAlignment(sizeof(GVMemoryBlock),
104 TD.getPreferredAlignment(GV))
106 new(RawMemory) GVMemoryBlock(GV);
107 return static_cast<char*>(RawMemory) + sizeof(GVMemoryBlock);
110 void deleted() override {
111 // We allocated with operator new and with some extra memory hanging off the
112 // end, so don't just delete this. I'm not sure if this is actually
114 this->~GVMemoryBlock();
115 ::operator delete(this);
118 } // anonymous namespace
120 char *ExecutionEngine::getMemoryForGV(const GlobalVariable *GV) {
121 return GVMemoryBlock::Create(GV, *getDataLayout());
124 void ExecutionEngine::addObjectFile(std::unique_ptr<object::ObjectFile> O) {
125 llvm_unreachable("ExecutionEngine subclass doesn't implement addObjectFile.");
128 bool ExecutionEngine::removeModule(Module *M) {
129 for(SmallVectorImpl<Module *>::iterator I = Modules.begin(),
130 E = Modules.end(); I != E; ++I) {
134 clearGlobalMappingsFromModule(M);
141 Function *ExecutionEngine::FindFunctionNamed(const char *FnName) {
142 for (unsigned i = 0, e = Modules.size(); i != e; ++i) {
143 if (Function *F = Modules[i]->getFunction(FnName))
150 void *ExecutionEngineState::RemoveMapping(const GlobalValue *ToUnmap) {
151 GlobalAddressMapTy::iterator I = GlobalAddressMap.find(ToUnmap);
154 // FIXME: This is silly, we shouldn't end up with a mapping -> 0 in the
156 if (I == GlobalAddressMap.end())
160 GlobalAddressMap.erase(I);
163 GlobalAddressReverseMap.erase(OldVal);
167 void ExecutionEngine::addGlobalMapping(const GlobalValue *GV, void *Addr) {
168 MutexGuard locked(lock);
170 DEBUG(dbgs() << "JIT: Map \'" << GV->getName()
171 << "\' to [" << Addr << "]\n";);
172 void *&CurVal = EEState.getGlobalAddressMap()[GV];
173 assert((!CurVal || !Addr) && "GlobalMapping already established!");
176 // If we are using the reverse mapping, add it too.
177 if (!EEState.getGlobalAddressReverseMap().empty()) {
178 AssertingVH<const GlobalValue> &V =
179 EEState.getGlobalAddressReverseMap()[Addr];
180 assert((!V || !GV) && "GlobalMapping already established!");
185 void ExecutionEngine::clearAllGlobalMappings() {
186 MutexGuard locked(lock);
188 EEState.getGlobalAddressMap().clear();
189 EEState.getGlobalAddressReverseMap().clear();
192 void ExecutionEngine::clearGlobalMappingsFromModule(Module *M) {
193 MutexGuard locked(lock);
195 for (Module::iterator FI = M->begin(), FE = M->end(); FI != FE; ++FI)
196 EEState.RemoveMapping(FI);
197 for (Module::global_iterator GI = M->global_begin(), GE = M->global_end();
199 EEState.RemoveMapping(GI);
202 void *ExecutionEngine::updateGlobalMapping(const GlobalValue *GV, void *Addr) {
203 MutexGuard locked(lock);
205 ExecutionEngineState::GlobalAddressMapTy &Map =
206 EEState.getGlobalAddressMap();
208 // Deleting from the mapping?
210 return EEState.RemoveMapping(GV);
212 void *&CurVal = Map[GV];
213 void *OldVal = CurVal;
215 if (CurVal && !EEState.getGlobalAddressReverseMap().empty())
216 EEState.getGlobalAddressReverseMap().erase(CurVal);
219 // If we are using the reverse mapping, add it too.
220 if (!EEState.getGlobalAddressReverseMap().empty()) {
221 AssertingVH<const GlobalValue> &V =
222 EEState.getGlobalAddressReverseMap()[Addr];
223 assert((!V || !GV) && "GlobalMapping already established!");
229 void *ExecutionEngine::getPointerToGlobalIfAvailable(const GlobalValue *GV) {
230 MutexGuard locked(lock);
232 ExecutionEngineState::GlobalAddressMapTy::iterator I =
233 EEState.getGlobalAddressMap().find(GV);
234 return I != EEState.getGlobalAddressMap().end() ? I->second : nullptr;
237 const GlobalValue *ExecutionEngine::getGlobalValueAtAddress(void *Addr) {
238 MutexGuard locked(lock);
240 // If we haven't computed the reverse mapping yet, do so first.
241 if (EEState.getGlobalAddressReverseMap().empty()) {
242 for (ExecutionEngineState::GlobalAddressMapTy::iterator
243 I = EEState.getGlobalAddressMap().begin(),
244 E = EEState.getGlobalAddressMap().end(); I != E; ++I)
245 EEState.getGlobalAddressReverseMap().insert(std::make_pair(
246 I->second, I->first));
249 std::map<void *, AssertingVH<const GlobalValue> >::iterator I =
250 EEState.getGlobalAddressReverseMap().find(Addr);
251 return I != EEState.getGlobalAddressReverseMap().end() ? I->second : nullptr;
257 std::vector<char*> Values;
259 ArgvArray() : Array(nullptr) {}
260 ~ArgvArray() { clear(); }
264 for (size_t I = 0, E = Values.size(); I != E; ++I) {
269 /// Turn a vector of strings into a nice argv style array of pointers to null
270 /// terminated strings.
271 void *reset(LLVMContext &C, ExecutionEngine *EE,
272 const std::vector<std::string> &InputArgv);
274 } // anonymous namespace
275 void *ArgvArray::reset(LLVMContext &C, ExecutionEngine *EE,
276 const std::vector<std::string> &InputArgv) {
277 clear(); // Free the old contents.
278 unsigned PtrSize = EE->getDataLayout()->getPointerSize();
279 Array = new char[(InputArgv.size()+1)*PtrSize];
281 DEBUG(dbgs() << "JIT: ARGV = " << (void*)Array << "\n");
282 Type *SBytePtr = Type::getInt8PtrTy(C);
284 for (unsigned i = 0; i != InputArgv.size(); ++i) {
285 unsigned Size = InputArgv[i].size()+1;
286 char *Dest = new char[Size];
287 Values.push_back(Dest);
288 DEBUG(dbgs() << "JIT: ARGV[" << i << "] = " << (void*)Dest << "\n");
290 std::copy(InputArgv[i].begin(), InputArgv[i].end(), Dest);
293 // Endian safe: Array[i] = (PointerTy)Dest;
294 EE->StoreValueToMemory(PTOGV(Dest), (GenericValue*)(Array+i*PtrSize),
299 EE->StoreValueToMemory(PTOGV(nullptr),
300 (GenericValue*)(Array+InputArgv.size()*PtrSize),
305 void ExecutionEngine::runStaticConstructorsDestructors(Module *module,
307 const char *Name = isDtors ? "llvm.global_dtors" : "llvm.global_ctors";
308 GlobalVariable *GV = module->getNamedGlobal(Name);
310 // If this global has internal linkage, or if it has a use, then it must be
311 // an old-style (llvmgcc3) static ctor with __main linked in and in use. If
312 // this is the case, don't execute any of the global ctors, __main will do
314 if (!GV || GV->isDeclaration() || GV->hasLocalLinkage()) return;
316 // Should be an array of '{ i32, void ()* }' structs. The first value is
317 // the init priority, which we ignore.
318 ConstantArray *InitList = dyn_cast<ConstantArray>(GV->getInitializer());
321 for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i) {
322 ConstantStruct *CS = dyn_cast<ConstantStruct>(InitList->getOperand(i));
325 Constant *FP = CS->getOperand(1);
326 if (FP->isNullValue())
327 continue; // Found a sentinal value, ignore.
329 // Strip off constant expression casts.
330 if (ConstantExpr *CE = dyn_cast<ConstantExpr>(FP))
332 FP = CE->getOperand(0);
334 // Execute the ctor/dtor function!
335 if (Function *F = dyn_cast<Function>(FP))
336 runFunction(F, std::vector<GenericValue>());
338 // FIXME: It is marginally lame that we just do nothing here if we see an
339 // entry we don't recognize. It might not be unreasonable for the verifier
340 // to not even allow this and just assert here.
344 void ExecutionEngine::runStaticConstructorsDestructors(bool isDtors) {
345 // Execute global ctors/dtors for each module in the program.
346 for (unsigned i = 0, e = Modules.size(); i != e; ++i)
347 runStaticConstructorsDestructors(Modules[i], isDtors);
351 /// isTargetNullPtr - Return whether the target pointer stored at Loc is null.
352 static bool isTargetNullPtr(ExecutionEngine *EE, void *Loc) {
353 unsigned PtrSize = EE->getDataLayout()->getPointerSize();
354 for (unsigned i = 0; i < PtrSize; ++i)
355 if (*(i + (uint8_t*)Loc))
361 int ExecutionEngine::runFunctionAsMain(Function *Fn,
362 const std::vector<std::string> &argv,
363 const char * const * envp) {
364 std::vector<GenericValue> GVArgs;
366 GVArgc.IntVal = APInt(32, argv.size());
369 unsigned NumArgs = Fn->getFunctionType()->getNumParams();
370 FunctionType *FTy = Fn->getFunctionType();
371 Type* PPInt8Ty = Type::getInt8PtrTy(Fn->getContext())->getPointerTo();
373 // Check the argument types.
375 report_fatal_error("Invalid number of arguments of main() supplied");
376 if (NumArgs >= 3 && FTy->getParamType(2) != PPInt8Ty)
377 report_fatal_error("Invalid type for third argument of main() supplied");
378 if (NumArgs >= 2 && FTy->getParamType(1) != PPInt8Ty)
379 report_fatal_error("Invalid type for second argument of main() supplied");
380 if (NumArgs >= 1 && !FTy->getParamType(0)->isIntegerTy(32))
381 report_fatal_error("Invalid type for first argument of main() supplied");
382 if (!FTy->getReturnType()->isIntegerTy() &&
383 !FTy->getReturnType()->isVoidTy())
384 report_fatal_error("Invalid return type of main() supplied");
389 GVArgs.push_back(GVArgc); // Arg #0 = argc.
392 GVArgs.push_back(PTOGV(CArgv.reset(Fn->getContext(), this, argv)));
393 assert(!isTargetNullPtr(this, GVTOP(GVArgs[1])) &&
394 "argv[0] was null after CreateArgv");
396 std::vector<std::string> EnvVars;
397 for (unsigned i = 0; envp[i]; ++i)
398 EnvVars.push_back(envp[i]);
400 GVArgs.push_back(PTOGV(CEnv.reset(Fn->getContext(), this, EnvVars)));
405 return runFunction(Fn, GVArgs).IntVal.getZExtValue();
408 void EngineBuilder::InitEngine() {
409 WhichEngine = EngineKind::Either;
411 OptLevel = CodeGenOpt::Default;
414 Options = TargetOptions();
415 AllocateGVsWithCode = false;
416 RelocModel = Reloc::Default;
417 CMModel = CodeModel::JITDefault;
420 // IR module verification is enabled by default in debug builds, and disabled
421 // by default in release builds.
423 VerifyModules = true;
425 VerifyModules = false;
429 ExecutionEngine *EngineBuilder::create(TargetMachine *TM) {
430 std::unique_ptr<TargetMachine> TheTM(TM); // Take ownership.
432 // Make sure we can resolve symbols in the program as well. The zero arg
433 // to the function tells DynamicLibrary to load the program, not a library.
434 if (sys::DynamicLibrary::LoadLibraryPermanently(nullptr, ErrorStr))
437 assert(!(JMM && MCJMM));
439 // If the user specified a memory manager but didn't specify which engine to
440 // create, we assume they only want the JIT, and we fail if they only want
443 if (WhichEngine & EngineKind::JIT)
444 WhichEngine = EngineKind::JIT;
447 *ErrorStr = "Cannot create an interpreter with a memory manager.";
452 if (MCJMM && ! UseMCJIT) {
455 "Cannot create a legacy JIT with a runtime dyld memory "
460 // Unless the interpreter was explicitly selected or the JIT is not linked,
462 if ((WhichEngine & EngineKind::JIT) && TheTM) {
463 Triple TT(M->getTargetTriple());
464 if (!TM->getTarget().hasJIT()) {
465 errs() << "WARNING: This target JIT is not designed for the host"
466 << " you are running. If bad things happen, please choose"
467 << " a different -march switch.\n";
470 ExecutionEngine *EE = nullptr;
471 if (UseMCJIT && ExecutionEngine::MCJITCtor)
472 EE = ExecutionEngine::MCJITCtor(M, ErrorStr, MCJMM ? MCJMM : JMM,
474 else if (ExecutionEngine::JITCtor)
475 EE = ExecutionEngine::JITCtor(M, ErrorStr, JMM,
476 AllocateGVsWithCode, TheTM.release());
479 EE->setVerifyModules(VerifyModules);
484 // If we can't make a JIT and we didn't request one specifically, try making
485 // an interpreter instead.
486 if (WhichEngine & EngineKind::Interpreter) {
487 if (ExecutionEngine::InterpCtor)
488 return ExecutionEngine::InterpCtor(M, ErrorStr);
490 *ErrorStr = "Interpreter has not been linked in.";
494 if ((WhichEngine & EngineKind::JIT) && !ExecutionEngine::JITCtor &&
495 !ExecutionEngine::MCJITCtor) {
497 *ErrorStr = "JIT has not been linked in.";
503 void *ExecutionEngine::getPointerToGlobal(const GlobalValue *GV) {
504 if (Function *F = const_cast<Function*>(dyn_cast<Function>(GV)))
505 return getPointerToFunction(F);
507 MutexGuard locked(lock);
508 if (void *P = EEState.getGlobalAddressMap()[GV])
511 // Global variable might have been added since interpreter started.
512 if (GlobalVariable *GVar =
513 const_cast<GlobalVariable *>(dyn_cast<GlobalVariable>(GV)))
514 EmitGlobalVariable(GVar);
516 llvm_unreachable("Global hasn't had an address allocated yet!");
518 return EEState.getGlobalAddressMap()[GV];
521 /// \brief Converts a Constant* into a GenericValue, including handling of
522 /// ConstantExpr values.
523 GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
524 // If its undefined, return the garbage.
525 if (isa<UndefValue>(C)) {
527 switch (C->getType()->getTypeID()) {
530 case Type::IntegerTyID:
531 case Type::X86_FP80TyID:
532 case Type::FP128TyID:
533 case Type::PPC_FP128TyID:
534 // Although the value is undefined, we still have to construct an APInt
535 // with the correct bit width.
536 Result.IntVal = APInt(C->getType()->getPrimitiveSizeInBits(), 0);
538 case Type::StructTyID: {
539 // if the whole struct is 'undef' just reserve memory for the value.
540 if(StructType *STy = dyn_cast<StructType>(C->getType())) {
541 unsigned int elemNum = STy->getNumElements();
542 Result.AggregateVal.resize(elemNum);
543 for (unsigned int i = 0; i < elemNum; ++i) {
544 Type *ElemTy = STy->getElementType(i);
545 if (ElemTy->isIntegerTy())
546 Result.AggregateVal[i].IntVal =
547 APInt(ElemTy->getPrimitiveSizeInBits(), 0);
548 else if (ElemTy->isAggregateType()) {
549 const Constant *ElemUndef = UndefValue::get(ElemTy);
550 Result.AggregateVal[i] = getConstantValue(ElemUndef);
556 case Type::VectorTyID:
557 // if the whole vector is 'undef' just reserve memory for the value.
558 const VectorType* VTy = dyn_cast<VectorType>(C->getType());
559 const Type *ElemTy = VTy->getElementType();
560 unsigned int elemNum = VTy->getNumElements();
561 Result.AggregateVal.resize(elemNum);
562 if (ElemTy->isIntegerTy())
563 for (unsigned int i = 0; i < elemNum; ++i)
564 Result.AggregateVal[i].IntVal =
565 APInt(ElemTy->getPrimitiveSizeInBits(), 0);
571 // Otherwise, if the value is a ConstantExpr...
572 if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
573 Constant *Op0 = CE->getOperand(0);
574 switch (CE->getOpcode()) {
575 case Instruction::GetElementPtr: {
577 GenericValue Result = getConstantValue(Op0);
578 APInt Offset(DL->getPointerSizeInBits(), 0);
579 cast<GEPOperator>(CE)->accumulateConstantOffset(*DL, Offset);
581 char* tmp = (char*) Result.PointerVal;
582 Result = PTOGV(tmp + Offset.getSExtValue());
585 case Instruction::Trunc: {
586 GenericValue GV = getConstantValue(Op0);
587 uint32_t BitWidth = cast<IntegerType>(CE->getType())->getBitWidth();
588 GV.IntVal = GV.IntVal.trunc(BitWidth);
591 case Instruction::ZExt: {
592 GenericValue GV = getConstantValue(Op0);
593 uint32_t BitWidth = cast<IntegerType>(CE->getType())->getBitWidth();
594 GV.IntVal = GV.IntVal.zext(BitWidth);
597 case Instruction::SExt: {
598 GenericValue GV = getConstantValue(Op0);
599 uint32_t BitWidth = cast<IntegerType>(CE->getType())->getBitWidth();
600 GV.IntVal = GV.IntVal.sext(BitWidth);
603 case Instruction::FPTrunc: {
605 GenericValue GV = getConstantValue(Op0);
606 GV.FloatVal = float(GV.DoubleVal);
609 case Instruction::FPExt:{
611 GenericValue GV = getConstantValue(Op0);
612 GV.DoubleVal = double(GV.FloatVal);
615 case Instruction::UIToFP: {
616 GenericValue GV = getConstantValue(Op0);
617 if (CE->getType()->isFloatTy())
618 GV.FloatVal = float(GV.IntVal.roundToDouble());
619 else if (CE->getType()->isDoubleTy())
620 GV.DoubleVal = GV.IntVal.roundToDouble();
621 else if (CE->getType()->isX86_FP80Ty()) {
622 APFloat apf = APFloat::getZero(APFloat::x87DoubleExtended);
623 (void)apf.convertFromAPInt(GV.IntVal,
625 APFloat::rmNearestTiesToEven);
626 GV.IntVal = apf.bitcastToAPInt();
630 case Instruction::SIToFP: {
631 GenericValue GV = getConstantValue(Op0);
632 if (CE->getType()->isFloatTy())
633 GV.FloatVal = float(GV.IntVal.signedRoundToDouble());
634 else if (CE->getType()->isDoubleTy())
635 GV.DoubleVal = GV.IntVal.signedRoundToDouble();
636 else if (CE->getType()->isX86_FP80Ty()) {
637 APFloat apf = APFloat::getZero(APFloat::x87DoubleExtended);
638 (void)apf.convertFromAPInt(GV.IntVal,
640 APFloat::rmNearestTiesToEven);
641 GV.IntVal = apf.bitcastToAPInt();
645 case Instruction::FPToUI: // double->APInt conversion handles sign
646 case Instruction::FPToSI: {
647 GenericValue GV = getConstantValue(Op0);
648 uint32_t BitWidth = cast<IntegerType>(CE->getType())->getBitWidth();
649 if (Op0->getType()->isFloatTy())
650 GV.IntVal = APIntOps::RoundFloatToAPInt(GV.FloatVal, BitWidth);
651 else if (Op0->getType()->isDoubleTy())
652 GV.IntVal = APIntOps::RoundDoubleToAPInt(GV.DoubleVal, BitWidth);
653 else if (Op0->getType()->isX86_FP80Ty()) {
654 APFloat apf = APFloat(APFloat::x87DoubleExtended, GV.IntVal);
657 (void)apf.convertToInteger(&v, BitWidth,
658 CE->getOpcode()==Instruction::FPToSI,
659 APFloat::rmTowardZero, &ignored);
660 GV.IntVal = v; // endian?
664 case Instruction::PtrToInt: {
665 GenericValue GV = getConstantValue(Op0);
666 uint32_t PtrWidth = DL->getTypeSizeInBits(Op0->getType());
667 assert(PtrWidth <= 64 && "Bad pointer width");
668 GV.IntVal = APInt(PtrWidth, uintptr_t(GV.PointerVal));
669 uint32_t IntWidth = DL->getTypeSizeInBits(CE->getType());
670 GV.IntVal = GV.IntVal.zextOrTrunc(IntWidth);
673 case Instruction::IntToPtr: {
674 GenericValue GV = getConstantValue(Op0);
675 uint32_t PtrWidth = DL->getTypeSizeInBits(CE->getType());
676 GV.IntVal = GV.IntVal.zextOrTrunc(PtrWidth);
677 assert(GV.IntVal.getBitWidth() <= 64 && "Bad pointer width");
678 GV.PointerVal = PointerTy(uintptr_t(GV.IntVal.getZExtValue()));
681 case Instruction::BitCast: {
682 GenericValue GV = getConstantValue(Op0);
683 Type* DestTy = CE->getType();
684 switch (Op0->getType()->getTypeID()) {
685 default: llvm_unreachable("Invalid bitcast operand");
686 case Type::IntegerTyID:
687 assert(DestTy->isFloatingPointTy() && "invalid bitcast");
688 if (DestTy->isFloatTy())
689 GV.FloatVal = GV.IntVal.bitsToFloat();
690 else if (DestTy->isDoubleTy())
691 GV.DoubleVal = GV.IntVal.bitsToDouble();
693 case Type::FloatTyID:
694 assert(DestTy->isIntegerTy(32) && "Invalid bitcast");
695 GV.IntVal = APInt::floatToBits(GV.FloatVal);
697 case Type::DoubleTyID:
698 assert(DestTy->isIntegerTy(64) && "Invalid bitcast");
699 GV.IntVal = APInt::doubleToBits(GV.DoubleVal);
701 case Type::PointerTyID:
702 assert(DestTy->isPointerTy() && "Invalid bitcast");
703 break; // getConstantValue(Op0) above already converted it
707 case Instruction::Add:
708 case Instruction::FAdd:
709 case Instruction::Sub:
710 case Instruction::FSub:
711 case Instruction::Mul:
712 case Instruction::FMul:
713 case Instruction::UDiv:
714 case Instruction::SDiv:
715 case Instruction::URem:
716 case Instruction::SRem:
717 case Instruction::And:
718 case Instruction::Or:
719 case Instruction::Xor: {
720 GenericValue LHS = getConstantValue(Op0);
721 GenericValue RHS = getConstantValue(CE->getOperand(1));
723 switch (CE->getOperand(0)->getType()->getTypeID()) {
724 default: llvm_unreachable("Bad add type!");
725 case Type::IntegerTyID:
726 switch (CE->getOpcode()) {
727 default: llvm_unreachable("Invalid integer opcode");
728 case Instruction::Add: GV.IntVal = LHS.IntVal + RHS.IntVal; break;
729 case Instruction::Sub: GV.IntVal = LHS.IntVal - RHS.IntVal; break;
730 case Instruction::Mul: GV.IntVal = LHS.IntVal * RHS.IntVal; break;
731 case Instruction::UDiv:GV.IntVal = LHS.IntVal.udiv(RHS.IntVal); break;
732 case Instruction::SDiv:GV.IntVal = LHS.IntVal.sdiv(RHS.IntVal); break;
733 case Instruction::URem:GV.IntVal = LHS.IntVal.urem(RHS.IntVal); break;
734 case Instruction::SRem:GV.IntVal = LHS.IntVal.srem(RHS.IntVal); break;
735 case Instruction::And: GV.IntVal = LHS.IntVal & RHS.IntVal; break;
736 case Instruction::Or: GV.IntVal = LHS.IntVal | RHS.IntVal; break;
737 case Instruction::Xor: GV.IntVal = LHS.IntVal ^ RHS.IntVal; break;
740 case Type::FloatTyID:
741 switch (CE->getOpcode()) {
742 default: llvm_unreachable("Invalid float opcode");
743 case Instruction::FAdd:
744 GV.FloatVal = LHS.FloatVal + RHS.FloatVal; break;
745 case Instruction::FSub:
746 GV.FloatVal = LHS.FloatVal - RHS.FloatVal; break;
747 case Instruction::FMul:
748 GV.FloatVal = LHS.FloatVal * RHS.FloatVal; break;
749 case Instruction::FDiv:
750 GV.FloatVal = LHS.FloatVal / RHS.FloatVal; break;
751 case Instruction::FRem:
752 GV.FloatVal = std::fmod(LHS.FloatVal,RHS.FloatVal); break;
755 case Type::DoubleTyID:
756 switch (CE->getOpcode()) {
757 default: llvm_unreachable("Invalid double opcode");
758 case Instruction::FAdd:
759 GV.DoubleVal = LHS.DoubleVal + RHS.DoubleVal; break;
760 case Instruction::FSub:
761 GV.DoubleVal = LHS.DoubleVal - RHS.DoubleVal; break;
762 case Instruction::FMul:
763 GV.DoubleVal = LHS.DoubleVal * RHS.DoubleVal; break;
764 case Instruction::FDiv:
765 GV.DoubleVal = LHS.DoubleVal / RHS.DoubleVal; break;
766 case Instruction::FRem:
767 GV.DoubleVal = std::fmod(LHS.DoubleVal,RHS.DoubleVal); break;
770 case Type::X86_FP80TyID:
771 case Type::PPC_FP128TyID:
772 case Type::FP128TyID: {
773 const fltSemantics &Sem = CE->getOperand(0)->getType()->getFltSemantics();
774 APFloat apfLHS = APFloat(Sem, LHS.IntVal);
775 switch (CE->getOpcode()) {
776 default: llvm_unreachable("Invalid long double opcode");
777 case Instruction::FAdd:
778 apfLHS.add(APFloat(Sem, RHS.IntVal), APFloat::rmNearestTiesToEven);
779 GV.IntVal = apfLHS.bitcastToAPInt();
781 case Instruction::FSub:
782 apfLHS.subtract(APFloat(Sem, RHS.IntVal),
783 APFloat::rmNearestTiesToEven);
784 GV.IntVal = apfLHS.bitcastToAPInt();
786 case Instruction::FMul:
787 apfLHS.multiply(APFloat(Sem, RHS.IntVal),
788 APFloat::rmNearestTiesToEven);
789 GV.IntVal = apfLHS.bitcastToAPInt();
791 case Instruction::FDiv:
792 apfLHS.divide(APFloat(Sem, RHS.IntVal),
793 APFloat::rmNearestTiesToEven);
794 GV.IntVal = apfLHS.bitcastToAPInt();
796 case Instruction::FRem:
797 apfLHS.mod(APFloat(Sem, RHS.IntVal),
798 APFloat::rmNearestTiesToEven);
799 GV.IntVal = apfLHS.bitcastToAPInt();
811 SmallString<256> Msg;
812 raw_svector_ostream OS(Msg);
813 OS << "ConstantExpr not handled: " << *CE;
814 report_fatal_error(OS.str());
817 // Otherwise, we have a simple constant.
819 switch (C->getType()->getTypeID()) {
820 case Type::FloatTyID:
821 Result.FloatVal = cast<ConstantFP>(C)->getValueAPF().convertToFloat();
823 case Type::DoubleTyID:
824 Result.DoubleVal = cast<ConstantFP>(C)->getValueAPF().convertToDouble();
826 case Type::X86_FP80TyID:
827 case Type::FP128TyID:
828 case Type::PPC_FP128TyID:
829 Result.IntVal = cast <ConstantFP>(C)->getValueAPF().bitcastToAPInt();
831 case Type::IntegerTyID:
832 Result.IntVal = cast<ConstantInt>(C)->getValue();
834 case Type::PointerTyID:
835 if (isa<ConstantPointerNull>(C))
836 Result.PointerVal = nullptr;
837 else if (const Function *F = dyn_cast<Function>(C))
838 Result = PTOGV(getPointerToFunctionOrStub(const_cast<Function*>(F)));
839 else if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(C))
840 Result = PTOGV(getOrEmitGlobalVariable(const_cast<GlobalVariable*>(GV)));
841 else if (const BlockAddress *BA = dyn_cast<BlockAddress>(C))
842 Result = PTOGV(getPointerToBasicBlock(const_cast<BasicBlock*>(
843 BA->getBasicBlock())));
845 llvm_unreachable("Unknown constant pointer type!");
847 case Type::VectorTyID: {
850 const ConstantDataVector *CDV = dyn_cast<ConstantDataVector>(C);
851 const ConstantVector *CV = dyn_cast<ConstantVector>(C);
852 const ConstantAggregateZero *CAZ = dyn_cast<ConstantAggregateZero>(C);
855 elemNum = CDV->getNumElements();
856 ElemTy = CDV->getElementType();
857 } else if (CV || CAZ) {
858 VectorType* VTy = dyn_cast<VectorType>(C->getType());
859 elemNum = VTy->getNumElements();
860 ElemTy = VTy->getElementType();
862 llvm_unreachable("Unknown constant vector type!");
865 Result.AggregateVal.resize(elemNum);
866 // Check if vector holds floats.
867 if(ElemTy->isFloatTy()) {
869 GenericValue floatZero;
870 floatZero.FloatVal = 0.f;
871 std::fill(Result.AggregateVal.begin(), Result.AggregateVal.end(),
876 for (unsigned i = 0; i < elemNum; ++i)
877 if (!isa<UndefValue>(CV->getOperand(i)))
878 Result.AggregateVal[i].FloatVal = cast<ConstantFP>(
879 CV->getOperand(i))->getValueAPF().convertToFloat();
883 for (unsigned i = 0; i < elemNum; ++i)
884 Result.AggregateVal[i].FloatVal = CDV->getElementAsFloat(i);
888 // Check if vector holds doubles.
889 if (ElemTy->isDoubleTy()) {
891 GenericValue doubleZero;
892 doubleZero.DoubleVal = 0.0;
893 std::fill(Result.AggregateVal.begin(), Result.AggregateVal.end(),
898 for (unsigned i = 0; i < elemNum; ++i)
899 if (!isa<UndefValue>(CV->getOperand(i)))
900 Result.AggregateVal[i].DoubleVal = cast<ConstantFP>(
901 CV->getOperand(i))->getValueAPF().convertToDouble();
905 for (unsigned i = 0; i < elemNum; ++i)
906 Result.AggregateVal[i].DoubleVal = CDV->getElementAsDouble(i);
910 // Check if vector holds integers.
911 if (ElemTy->isIntegerTy()) {
913 GenericValue intZero;
914 intZero.IntVal = APInt(ElemTy->getScalarSizeInBits(), 0ull);
915 std::fill(Result.AggregateVal.begin(), Result.AggregateVal.end(),
920 for (unsigned i = 0; i < elemNum; ++i)
921 if (!isa<UndefValue>(CV->getOperand(i)))
922 Result.AggregateVal[i].IntVal = cast<ConstantInt>(
923 CV->getOperand(i))->getValue();
925 Result.AggregateVal[i].IntVal =
926 APInt(CV->getOperand(i)->getType()->getPrimitiveSizeInBits(), 0);
931 for (unsigned i = 0; i < elemNum; ++i)
932 Result.AggregateVal[i].IntVal = APInt(
933 CDV->getElementType()->getPrimitiveSizeInBits(),
934 CDV->getElementAsInteger(i));
938 llvm_unreachable("Unknown constant pointer type!");
943 SmallString<256> Msg;
944 raw_svector_ostream OS(Msg);
945 OS << "ERROR: Constant unimplemented for type: " << *C->getType();
946 report_fatal_error(OS.str());
952 /// StoreIntToMemory - Fills the StoreBytes bytes of memory starting from Dst
953 /// with the integer held in IntVal.
954 static void StoreIntToMemory(const APInt &IntVal, uint8_t *Dst,
955 unsigned StoreBytes) {
956 assert((IntVal.getBitWidth()+7)/8 >= StoreBytes && "Integer too small!");
957 const uint8_t *Src = (const uint8_t *)IntVal.getRawData();
959 if (sys::IsLittleEndianHost) {
960 // Little-endian host - the source is ordered from LSB to MSB. Order the
961 // destination from LSB to MSB: Do a straight copy.
962 memcpy(Dst, Src, StoreBytes);
964 // Big-endian host - the source is an array of 64 bit words ordered from
965 // LSW to MSW. Each word is ordered from MSB to LSB. Order the destination
966 // from MSB to LSB: Reverse the word order, but not the bytes in a word.
967 while (StoreBytes > sizeof(uint64_t)) {
968 StoreBytes -= sizeof(uint64_t);
969 // May not be aligned so use memcpy.
970 memcpy(Dst + StoreBytes, Src, sizeof(uint64_t));
971 Src += sizeof(uint64_t);
974 memcpy(Dst, Src + sizeof(uint64_t) - StoreBytes, StoreBytes);
978 void ExecutionEngine::StoreValueToMemory(const GenericValue &Val,
979 GenericValue *Ptr, Type *Ty) {
980 const unsigned StoreBytes = getDataLayout()->getTypeStoreSize(Ty);
982 switch (Ty->getTypeID()) {
984 dbgs() << "Cannot store value of type " << *Ty << "!\n";
986 case Type::IntegerTyID:
987 StoreIntToMemory(Val.IntVal, (uint8_t*)Ptr, StoreBytes);
989 case Type::FloatTyID:
990 *((float*)Ptr) = Val.FloatVal;
992 case Type::DoubleTyID:
993 *((double*)Ptr) = Val.DoubleVal;
995 case Type::X86_FP80TyID:
996 memcpy(Ptr, Val.IntVal.getRawData(), 10);
998 case Type::PointerTyID:
999 // Ensure 64 bit target pointers are fully initialized on 32 bit hosts.
1000 if (StoreBytes != sizeof(PointerTy))
1001 memset(&(Ptr->PointerVal), 0, StoreBytes);
1003 *((PointerTy*)Ptr) = Val.PointerVal;
1005 case Type::VectorTyID:
1006 for (unsigned i = 0; i < Val.AggregateVal.size(); ++i) {
1007 if (cast<VectorType>(Ty)->getElementType()->isDoubleTy())
1008 *(((double*)Ptr)+i) = Val.AggregateVal[i].DoubleVal;
1009 if (cast<VectorType>(Ty)->getElementType()->isFloatTy())
1010 *(((float*)Ptr)+i) = Val.AggregateVal[i].FloatVal;
1011 if (cast<VectorType>(Ty)->getElementType()->isIntegerTy()) {
1012 unsigned numOfBytes =(Val.AggregateVal[i].IntVal.getBitWidth()+7)/8;
1013 StoreIntToMemory(Val.AggregateVal[i].IntVal,
1014 (uint8_t*)Ptr + numOfBytes*i, numOfBytes);
1020 if (sys::IsLittleEndianHost != getDataLayout()->isLittleEndian())
1021 // Host and target are different endian - reverse the stored bytes.
1022 std::reverse((uint8_t*)Ptr, StoreBytes + (uint8_t*)Ptr);
1025 /// LoadIntFromMemory - Loads the integer stored in the LoadBytes bytes starting
1026 /// from Src into IntVal, which is assumed to be wide enough and to hold zero.
1027 static void LoadIntFromMemory(APInt &IntVal, uint8_t *Src, unsigned LoadBytes) {
1028 assert((IntVal.getBitWidth()+7)/8 >= LoadBytes && "Integer too small!");
1029 uint8_t *Dst = reinterpret_cast<uint8_t *>(
1030 const_cast<uint64_t *>(IntVal.getRawData()));
1032 if (sys::IsLittleEndianHost)
1033 // Little-endian host - the destination must be ordered from LSB to MSB.
1034 // The source is ordered from LSB to MSB: Do a straight copy.
1035 memcpy(Dst, Src, LoadBytes);
1037 // Big-endian - the destination is an array of 64 bit words ordered from
1038 // LSW to MSW. Each word must be ordered from MSB to LSB. The source is
1039 // ordered from MSB to LSB: Reverse the word order, but not the bytes in
1041 while (LoadBytes > sizeof(uint64_t)) {
1042 LoadBytes -= sizeof(uint64_t);
1043 // May not be aligned so use memcpy.
1044 memcpy(Dst, Src + LoadBytes, sizeof(uint64_t));
1045 Dst += sizeof(uint64_t);
1048 memcpy(Dst + sizeof(uint64_t) - LoadBytes, Src, LoadBytes);
1054 void ExecutionEngine::LoadValueFromMemory(GenericValue &Result,
1057 const unsigned LoadBytes = getDataLayout()->getTypeStoreSize(Ty);
1059 switch (Ty->getTypeID()) {
1060 case Type::IntegerTyID:
1061 // An APInt with all words initially zero.
1062 Result.IntVal = APInt(cast<IntegerType>(Ty)->getBitWidth(), 0);
1063 LoadIntFromMemory(Result.IntVal, (uint8_t*)Ptr, LoadBytes);
1065 case Type::FloatTyID:
1066 Result.FloatVal = *((float*)Ptr);
1068 case Type::DoubleTyID:
1069 Result.DoubleVal = *((double*)Ptr);
1071 case Type::PointerTyID:
1072 Result.PointerVal = *((PointerTy*)Ptr);
1074 case Type::X86_FP80TyID: {
1075 // This is endian dependent, but it will only work on x86 anyway.
1076 // FIXME: Will not trap if loading a signaling NaN.
1079 Result.IntVal = APInt(80, y);
1082 case Type::VectorTyID: {
1083 const VectorType *VT = cast<VectorType>(Ty);
1084 const Type *ElemT = VT->getElementType();
1085 const unsigned numElems = VT->getNumElements();
1086 if (ElemT->isFloatTy()) {
1087 Result.AggregateVal.resize(numElems);
1088 for (unsigned i = 0; i < numElems; ++i)
1089 Result.AggregateVal[i].FloatVal = *((float*)Ptr+i);
1091 if (ElemT->isDoubleTy()) {
1092 Result.AggregateVal.resize(numElems);
1093 for (unsigned i = 0; i < numElems; ++i)
1094 Result.AggregateVal[i].DoubleVal = *((double*)Ptr+i);
1096 if (ElemT->isIntegerTy()) {
1097 GenericValue intZero;
1098 const unsigned elemBitWidth = cast<IntegerType>(ElemT)->getBitWidth();
1099 intZero.IntVal = APInt(elemBitWidth, 0);
1100 Result.AggregateVal.resize(numElems, intZero);
1101 for (unsigned i = 0; i < numElems; ++i)
1102 LoadIntFromMemory(Result.AggregateVal[i].IntVal,
1103 (uint8_t*)Ptr+((elemBitWidth+7)/8)*i, (elemBitWidth+7)/8);
1108 SmallString<256> Msg;
1109 raw_svector_ostream OS(Msg);
1110 OS << "Cannot load value of type " << *Ty << "!";
1111 report_fatal_error(OS.str());
1115 void ExecutionEngine::InitializeMemory(const Constant *Init, void *Addr) {
1116 DEBUG(dbgs() << "JIT: Initializing " << Addr << " ");
1117 DEBUG(Init->dump());
1118 if (isa<UndefValue>(Init))
1121 if (const ConstantVector *CP = dyn_cast<ConstantVector>(Init)) {
1122 unsigned ElementSize =
1123 getDataLayout()->getTypeAllocSize(CP->getType()->getElementType());
1124 for (unsigned i = 0, e = CP->getNumOperands(); i != e; ++i)
1125 InitializeMemory(CP->getOperand(i), (char*)Addr+i*ElementSize);
1129 if (isa<ConstantAggregateZero>(Init)) {
1130 memset(Addr, 0, (size_t)getDataLayout()->getTypeAllocSize(Init->getType()));
1134 if (const ConstantArray *CPA = dyn_cast<ConstantArray>(Init)) {
1135 unsigned ElementSize =
1136 getDataLayout()->getTypeAllocSize(CPA->getType()->getElementType());
1137 for (unsigned i = 0, e = CPA->getNumOperands(); i != e; ++i)
1138 InitializeMemory(CPA->getOperand(i), (char*)Addr+i*ElementSize);
1142 if (const ConstantStruct *CPS = dyn_cast<ConstantStruct>(Init)) {
1143 const StructLayout *SL =
1144 getDataLayout()->getStructLayout(cast<StructType>(CPS->getType()));
1145 for (unsigned i = 0, e = CPS->getNumOperands(); i != e; ++i)
1146 InitializeMemory(CPS->getOperand(i), (char*)Addr+SL->getElementOffset(i));
1150 if (const ConstantDataSequential *CDS =
1151 dyn_cast<ConstantDataSequential>(Init)) {
1152 // CDS is already laid out in host memory order.
1153 StringRef Data = CDS->getRawDataValues();
1154 memcpy(Addr, Data.data(), Data.size());
1158 if (Init->getType()->isFirstClassType()) {
1159 GenericValue Val = getConstantValue(Init);
1160 StoreValueToMemory(Val, (GenericValue*)Addr, Init->getType());
1164 DEBUG(dbgs() << "Bad Type: " << *Init->getType() << "\n");
1165 llvm_unreachable("Unknown constant type to initialize memory with!");
1168 /// EmitGlobals - Emit all of the global variables to memory, storing their
1169 /// addresses into GlobalAddress. This must make sure to copy the contents of
1170 /// their initializers into the memory.
1171 void ExecutionEngine::emitGlobals() {
1172 // Loop over all of the global variables in the program, allocating the memory
1173 // to hold them. If there is more than one module, do a prepass over globals
1174 // to figure out how the different modules should link together.
1175 std::map<std::pair<std::string, Type*>,
1176 const GlobalValue*> LinkedGlobalsMap;
1178 if (Modules.size() != 1) {
1179 for (unsigned m = 0, e = Modules.size(); m != e; ++m) {
1180 Module &M = *Modules[m];
1181 for (const auto &GV : M.globals()) {
1182 if (GV.hasLocalLinkage() || GV.isDeclaration() ||
1183 GV.hasAppendingLinkage() || !GV.hasName())
1184 continue;// Ignore external globals and globals with internal linkage.
1186 const GlobalValue *&GVEntry =
1187 LinkedGlobalsMap[std::make_pair(GV.getName(), GV.getType())];
1189 // If this is the first time we've seen this global, it is the canonical
1196 // If the existing global is strong, never replace it.
1197 if (GVEntry->hasExternalLinkage())
1200 // Otherwise, we know it's linkonce/weak, replace it if this is a strong
1201 // symbol. FIXME is this right for common?
1202 if (GV.hasExternalLinkage() || GVEntry->hasExternalWeakLinkage())
1208 std::vector<const GlobalValue*> NonCanonicalGlobals;
1209 for (unsigned m = 0, e = Modules.size(); m != e; ++m) {
1210 Module &M = *Modules[m];
1211 for (const auto &GV : M.globals()) {
1212 // In the multi-module case, see what this global maps to.
1213 if (!LinkedGlobalsMap.empty()) {
1214 if (const GlobalValue *GVEntry =
1215 LinkedGlobalsMap[std::make_pair(GV.getName(), GV.getType())]) {
1216 // If something else is the canonical global, ignore this one.
1217 if (GVEntry != &GV) {
1218 NonCanonicalGlobals.push_back(&GV);
1224 if (!GV.isDeclaration()) {
1225 addGlobalMapping(&GV, getMemoryForGV(&GV));
1227 // External variable reference. Try to use the dynamic loader to
1228 // get a pointer to it.
1230 sys::DynamicLibrary::SearchForAddressOfSymbol(GV.getName()))
1231 addGlobalMapping(&GV, SymAddr);
1233 report_fatal_error("Could not resolve external global address: "
1239 // If there are multiple modules, map the non-canonical globals to their
1240 // canonical location.
1241 if (!NonCanonicalGlobals.empty()) {
1242 for (unsigned i = 0, e = NonCanonicalGlobals.size(); i != e; ++i) {
1243 const GlobalValue *GV = NonCanonicalGlobals[i];
1244 const GlobalValue *CGV =
1245 LinkedGlobalsMap[std::make_pair(GV->getName(), GV->getType())];
1246 void *Ptr = getPointerToGlobalIfAvailable(CGV);
1247 assert(Ptr && "Canonical global wasn't codegen'd!");
1248 addGlobalMapping(GV, Ptr);
1252 // Now that all of the globals are set up in memory, loop through them all
1253 // and initialize their contents.
1254 for (const auto &GV : M.globals()) {
1255 if (!GV.isDeclaration()) {
1256 if (!LinkedGlobalsMap.empty()) {
1257 if (const GlobalValue *GVEntry =
1258 LinkedGlobalsMap[std::make_pair(GV.getName(), GV.getType())])
1259 if (GVEntry != &GV) // Not the canonical variable.
1262 EmitGlobalVariable(&GV);
1268 // EmitGlobalVariable - This method emits the specified global variable to the
1269 // address specified in GlobalAddresses, or allocates new memory if it's not
1270 // already in the map.
1271 void ExecutionEngine::EmitGlobalVariable(const GlobalVariable *GV) {
1272 void *GA = getPointerToGlobalIfAvailable(GV);
1275 // If it's not already specified, allocate memory for the global.
1276 GA = getMemoryForGV(GV);
1278 // If we failed to allocate memory for this global, return.
1281 addGlobalMapping(GV, GA);
1284 // Don't initialize if it's thread local, let the client do it.
1285 if (!GV->isThreadLocal())
1286 InitializeMemory(GV->getInitializer(), GA);
1288 Type *ElTy = GV->getType()->getElementType();
1289 size_t GVSize = (size_t)getDataLayout()->getTypeAllocSize(ElTy);
1290 NumInitBytes += (unsigned)GVSize;
1294 ExecutionEngineState::ExecutionEngineState(ExecutionEngine &EE)
1295 : EE(EE), GlobalAddressMap(this) {
1299 ExecutionEngineState::AddressMapConfig::getMutex(ExecutionEngineState *EES) {
1300 return &EES->EE.lock;
1303 void ExecutionEngineState::AddressMapConfig::onDelete(ExecutionEngineState *EES,
1304 const GlobalValue *Old) {
1305 void *OldVal = EES->GlobalAddressMap.lookup(Old);
1306 EES->GlobalAddressReverseMap.erase(OldVal);
1309 void ExecutionEngineState::AddressMapConfig::onRAUW(ExecutionEngineState *,
1310 const GlobalValue *,
1311 const GlobalValue *) {
1312 llvm_unreachable("The ExecutionEngine doesn't know how to handle a"
1313 " RAUW on a value it has a global mapping for.");