//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "jit"
#include "llvm/ExecutionEngine/ExecutionEngine.h"
-
-#include "llvm/Constants.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Instructions.h"
-#include "llvm/Module.h"
-#include "llvm/ExecutionEngine/GenericValue.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/Statistic.h"
+#include "llvm/ExecutionEngine/GenericValue.h"
+#include "llvm/ExecutionEngine/JITMemoryManager.h"
+#include "llvm/ExecutionEngine/ObjectCache.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/Operator.h"
+#include "llvm/IR/ValueHandle.h"
+#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/Debug.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/MutexGuard.h"
-#include "llvm/Support/ValueHandle.h"
-#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/DynamicLibrary.h"
+#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Host.h"
+#include "llvm/Support/MutexGuard.h"
#include "llvm/Support/TargetRegistry.h"
-#include "llvm/DataLayout.h"
+#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"
#include <cmath>
#include <cstring>
using namespace llvm;
+#define DEBUG_TYPE "jit"
+
STATISTIC(NumInitBytes, "Number of bytes of global vars initialized");
STATISTIC(NumGlobals , "Number of global vars initialized");
+// Pin the vtable to this file.
+void ObjectCache::anchor() {}
+void ObjectBuffer::anchor() {}
+void ObjectBufferStream::anchor() {}
+
ExecutionEngine *(*ExecutionEngine::JITCtor)(
Module *M,
std::string *ErrorStr,
JITMemoryManager *JMM,
bool GVsWithCode,
- TargetMachine *TM) = 0;
+ TargetMachine *TM) = nullptr;
ExecutionEngine *(*ExecutionEngine::MCJITCtor)(
Module *M,
std::string *ErrorStr,
- JITMemoryManager *JMM,
+ RTDyldMemoryManager *MCJMM,
bool GVsWithCode,
- TargetMachine *TM) = 0;
+ TargetMachine *TM) = nullptr;
ExecutionEngine *(*ExecutionEngine::InterpCtor)(Module *M,
- std::string *ErrorStr) = 0;
+ std::string *ErrorStr) =nullptr;
ExecutionEngine::ExecutionEngine(Module *M)
: EEState(*this),
- LazyFunctionCreator(0),
- ExceptionTableRegister(0),
- ExceptionTableDeregister(0) {
+ LazyFunctionCreator(nullptr) {
CompilingLazily = false;
GVCompilationDisabled = false;
SymbolSearchingDisabled = false;
+
+ // IR module verification is enabled by default in debug builds, and disabled
+ // by default in release builds.
+#ifndef NDEBUG
+ VerifyModules = true;
+#else
+ VerifyModules = false;
+#endif
+
Modules.push_back(M);
assert(M && "Module is null?");
}
delete Modules[i];
}
-void ExecutionEngine::DeregisterAllTables() {
- if (ExceptionTableDeregister) {
- DenseMap<const Function*, void*>::iterator it = AllExceptionTables.begin();
- DenseMap<const Function*, void*>::iterator ite = AllExceptionTables.end();
- for (; it != ite; ++it)
- ExceptionTableDeregister(it->second);
- AllExceptionTables.clear();
- }
-}
-
namespace {
/// \brief Helper class which uses a value handler to automatically deletes the
/// memory block when the GlobalVariable is destroyed.
return static_cast<char*>(RawMemory) + sizeof(GVMemoryBlock);
}
- virtual void deleted() {
+ void deleted() override {
// We allocated with operator new and with some extra memory hanging off the
// end, so don't just delete this. I'm not sure if this is actually
// required.
return GVMemoryBlock::Create(GV, *getDataLayout());
}
+void ExecutionEngine::addObjectFile(std::unique_ptr<object::ObjectFile> O) {
+ llvm_unreachable("ExecutionEngine subclass doesn't implement addObjectFile.");
+}
+
bool ExecutionEngine::removeModule(Module *M) {
- for(SmallVector<Module *, 1>::iterator I = Modules.begin(),
+ for(SmallVectorImpl<Module *>::iterator I = Modules.begin(),
E = Modules.end(); I != E; ++I) {
Module *Found = *I;
if (Found == M) {
if (Function *F = Modules[i]->getFunction(FnName))
return F;
}
- return 0;
+ return nullptr;
}
-void *ExecutionEngineState::RemoveMapping(const MutexGuard &,
- const GlobalValue *ToUnmap) {
+void *ExecutionEngineState::RemoveMapping(const GlobalValue *ToUnmap) {
GlobalAddressMapTy::iterator I = GlobalAddressMap.find(ToUnmap);
void *OldVal;
// FIXME: This is silly, we shouldn't end up with a mapping -> 0 in the
// GlobalAddressMap.
if (I == GlobalAddressMap.end())
- OldVal = 0;
+ OldVal = nullptr;
else {
OldVal = I->second;
GlobalAddressMap.erase(I);
DEBUG(dbgs() << "JIT: Map \'" << GV->getName()
<< "\' to [" << Addr << "]\n";);
- void *&CurVal = EEState.getGlobalAddressMap(locked)[GV];
- assert((CurVal == 0 || Addr == 0) && "GlobalMapping already established!");
+ void *&CurVal = EEState.getGlobalAddressMap()[GV];
+ assert((!CurVal || !Addr) && "GlobalMapping already established!");
CurVal = Addr;
// If we are using the reverse mapping, add it too.
- if (!EEState.getGlobalAddressReverseMap(locked).empty()) {
+ if (!EEState.getGlobalAddressReverseMap().empty()) {
AssertingVH<const GlobalValue> &V =
- EEState.getGlobalAddressReverseMap(locked)[Addr];
- assert((V == 0 || GV == 0) && "GlobalMapping already established!");
+ EEState.getGlobalAddressReverseMap()[Addr];
+ assert((!V || !GV) && "GlobalMapping already established!");
V = GV;
}
}
void ExecutionEngine::clearAllGlobalMappings() {
MutexGuard locked(lock);
- EEState.getGlobalAddressMap(locked).clear();
- EEState.getGlobalAddressReverseMap(locked).clear();
+ EEState.getGlobalAddressMap().clear();
+ EEState.getGlobalAddressReverseMap().clear();
}
void ExecutionEngine::clearGlobalMappingsFromModule(Module *M) {
MutexGuard locked(lock);
for (Module::iterator FI = M->begin(), FE = M->end(); FI != FE; ++FI)
- EEState.RemoveMapping(locked, FI);
+ EEState.RemoveMapping(FI);
for (Module::global_iterator GI = M->global_begin(), GE = M->global_end();
GI != GE; ++GI)
- EEState.RemoveMapping(locked, GI);
+ EEState.RemoveMapping(GI);
}
void *ExecutionEngine::updateGlobalMapping(const GlobalValue *GV, void *Addr) {
MutexGuard locked(lock);
ExecutionEngineState::GlobalAddressMapTy &Map =
- EEState.getGlobalAddressMap(locked);
+ EEState.getGlobalAddressMap();
// Deleting from the mapping?
- if (Addr == 0)
- return EEState.RemoveMapping(locked, GV);
+ if (!Addr)
+ return EEState.RemoveMapping(GV);
void *&CurVal = Map[GV];
void *OldVal = CurVal;
- if (CurVal && !EEState.getGlobalAddressReverseMap(locked).empty())
- EEState.getGlobalAddressReverseMap(locked).erase(CurVal);
+ if (CurVal && !EEState.getGlobalAddressReverseMap().empty())
+ EEState.getGlobalAddressReverseMap().erase(CurVal);
CurVal = Addr;
// If we are using the reverse mapping, add it too.
- if (!EEState.getGlobalAddressReverseMap(locked).empty()) {
+ if (!EEState.getGlobalAddressReverseMap().empty()) {
AssertingVH<const GlobalValue> &V =
- EEState.getGlobalAddressReverseMap(locked)[Addr];
- assert((V == 0 || GV == 0) && "GlobalMapping already established!");
+ EEState.getGlobalAddressReverseMap()[Addr];
+ assert((!V || !GV) && "GlobalMapping already established!");
V = GV;
}
return OldVal;
MutexGuard locked(lock);
ExecutionEngineState::GlobalAddressMapTy::iterator I =
- EEState.getGlobalAddressMap(locked).find(GV);
- return I != EEState.getGlobalAddressMap(locked).end() ? I->second : 0;
+ EEState.getGlobalAddressMap().find(GV);
+ return I != EEState.getGlobalAddressMap().end() ? I->second : nullptr;
}
const GlobalValue *ExecutionEngine::getGlobalValueAtAddress(void *Addr) {
MutexGuard locked(lock);
// If we haven't computed the reverse mapping yet, do so first.
- if (EEState.getGlobalAddressReverseMap(locked).empty()) {
+ if (EEState.getGlobalAddressReverseMap().empty()) {
for (ExecutionEngineState::GlobalAddressMapTy::iterator
- I = EEState.getGlobalAddressMap(locked).begin(),
- E = EEState.getGlobalAddressMap(locked).end(); I != E; ++I)
- EEState.getGlobalAddressReverseMap(locked).insert(std::make_pair(
+ I = EEState.getGlobalAddressMap().begin(),
+ E = EEState.getGlobalAddressMap().end(); I != E; ++I)
+ EEState.getGlobalAddressReverseMap().insert(std::make_pair(
I->second, I->first));
}
std::map<void *, AssertingVH<const GlobalValue> >::iterator I =
- EEState.getGlobalAddressReverseMap(locked).find(Addr);
- return I != EEState.getGlobalAddressReverseMap(locked).end() ? I->second : 0;
+ EEState.getGlobalAddressReverseMap().find(Addr);
+ return I != EEState.getGlobalAddressReverseMap().end() ? I->second : nullptr;
}
namespace {
char *Array;
std::vector<char*> Values;
public:
- ArgvArray() : Array(NULL) {}
+ ArgvArray() : Array(nullptr) {}
~ArgvArray() { clear(); }
void clear() {
delete[] Array;
- Array = NULL;
+ Array = nullptr;
for (size_t I = 0, E = Values.size(); I != E; ++I) {
delete[] Values[I];
}
void *ArgvArray::reset(LLVMContext &C, ExecutionEngine *EE,
const std::vector<std::string> &InputArgv) {
clear(); // Free the old contents.
- unsigned PtrSize = EE->getDataLayout()->getPointerSize(0);
+ unsigned PtrSize = EE->getDataLayout()->getPointerSize();
Array = new char[(InputArgv.size()+1)*PtrSize];
DEBUG(dbgs() << "JIT: ARGV = " << (void*)Array << "\n");
}
// Null terminate it
- EE->StoreValueToMemory(PTOGV(0),
+ EE->StoreValueToMemory(PTOGV(nullptr),
(GenericValue*)(Array+InputArgv.size()*PtrSize),
SBytePtr);
return Array;
// Should be an array of '{ i32, void ()* }' structs. The first value is
// the init priority, which we ignore.
ConstantArray *InitList = dyn_cast<ConstantArray>(GV->getInitializer());
- if (InitList == 0)
+ if (!InitList)
return;
for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i) {
ConstantStruct *CS = dyn_cast<ConstantStruct>(InitList->getOperand(i));
- if (CS == 0) continue;
+ if (!CS) continue;
Constant *FP = CS->getOperand(1);
if (FP->isNullValue())
#ifndef NDEBUG
/// isTargetNullPtr - Return whether the target pointer stored at Loc is null.
static bool isTargetNullPtr(ExecutionEngine *EE, void *Loc) {
- unsigned PtrSize = EE->getDataLayout()->getPointerSize(0);
+ unsigned PtrSize = EE->getDataLayout()->getPointerSize();
for (unsigned i = 0; i < PtrSize; ++i)
if (*(i + (uint8_t*)Loc))
return false;
std::string *ErrorStr,
CodeGenOpt::Level OptLevel,
bool GVsWithCode) {
- EngineBuilder EB = EngineBuilder(M)
- .setEngineKind(ForceInterpreter
- ? EngineKind::Interpreter
- : EngineKind::JIT)
- .setErrorStr(ErrorStr)
- .setOptLevel(OptLevel)
- .setAllocateGVsWithCode(GVsWithCode);
+
+ EngineBuilder EB =
+ EngineBuilder(M)
+ .setEngineKind(ForceInterpreter ? EngineKind::Interpreter
+ : EngineKind::Either)
+ .setErrorStr(ErrorStr)
+ .setOptLevel(OptLevel)
+ .setAllocateGVsWithCode(GVsWithCode);
return EB.create();
}
bool GVsWithCode,
Reloc::Model RM,
CodeModel::Model CMM) {
- if (ExecutionEngine::JITCtor == 0) {
+ if (!ExecutionEngine::JITCtor) {
if (ErrorStr)
*ErrorStr = "JIT has not been linked in.";
- return 0;
+ return nullptr;
}
// Use the defaults for extra parameters. Users can use EngineBuilder to
// TODO: permit custom TargetOptions here
TargetMachine *TM = EB.selectTarget();
- if (!TM || (ErrorStr && ErrorStr->length() > 0)) return 0;
+ if (!TM || (ErrorStr && ErrorStr->length() > 0)) return nullptr;
return ExecutionEngine::JITCtor(M, ErrorStr, JMM, GVsWithCode, TM);
}
+void EngineBuilder::InitEngine() {
+ WhichEngine = EngineKind::Either;
+ ErrorStr = nullptr;
+ OptLevel = CodeGenOpt::Default;
+ MCJMM = nullptr;
+ JMM = nullptr;
+ Options = TargetOptions();
+ AllocateGVsWithCode = false;
+ RelocModel = Reloc::Default;
+ CMModel = CodeModel::JITDefault;
+ UseMCJIT = false;
+
+// IR module verification is enabled by default in debug builds, and disabled
+// by default in release builds.
+#ifndef NDEBUG
+ VerifyModules = true;
+#else
+ VerifyModules = false;
+#endif
+}
+
ExecutionEngine *EngineBuilder::create(TargetMachine *TM) {
- OwningPtr<TargetMachine> TheTM(TM); // Take ownership.
+ std::unique_ptr<TargetMachine> TheTM(TM); // Take ownership.
// Make sure we can resolve symbols in the program as well. The zero arg
// to the function tells DynamicLibrary to load the program, not a library.
- if (sys::DynamicLibrary::LoadLibraryPermanently(0, ErrorStr))
- return 0;
+ if (sys::DynamicLibrary::LoadLibraryPermanently(nullptr, ErrorStr))
+ return nullptr;
+ assert(!(JMM && MCJMM));
+
// If the user specified a memory manager but didn't specify which engine to
// create, we assume they only want the JIT, and we fail if they only want
// the interpreter.
- if (JMM) {
+ if (JMM || MCJMM) {
if (WhichEngine & EngineKind::JIT)
WhichEngine = EngineKind::JIT;
else {
if (ErrorStr)
*ErrorStr = "Cannot create an interpreter with a memory manager.";
- return 0;
+ return nullptr;
}
}
+
+ if (MCJMM && ! UseMCJIT) {
+ if (ErrorStr)
+ *ErrorStr =
+ "Cannot create a legacy JIT with a runtime dyld memory "
+ "manager.";
+ return nullptr;
+ }
// Unless the interpreter was explicitly selected or the JIT is not linked,
// try making a JIT.
<< " a different -march switch.\n";
}
- if (UseMCJIT && ExecutionEngine::MCJITCtor) {
- ExecutionEngine *EE =
- ExecutionEngine::MCJITCtor(M, ErrorStr, JMM,
- AllocateGVsWithCode, TheTM.take());
- if (EE) return EE;
- } else if (ExecutionEngine::JITCtor) {
- ExecutionEngine *EE =
- ExecutionEngine::JITCtor(M, ErrorStr, JMM,
- AllocateGVsWithCode, TheTM.take());
- if (EE) return EE;
+ ExecutionEngine *EE = nullptr;
+ if (UseMCJIT && ExecutionEngine::MCJITCtor)
+ EE = ExecutionEngine::MCJITCtor(M, ErrorStr, MCJMM ? MCJMM : JMM,
+ AllocateGVsWithCode, TheTM.release());
+ else if (ExecutionEngine::JITCtor)
+ EE = ExecutionEngine::JITCtor(M, ErrorStr, JMM,
+ AllocateGVsWithCode, TheTM.release());
+
+ if (EE) {
+ EE->setVerifyModules(VerifyModules);
+ return EE;
}
}
return ExecutionEngine::InterpCtor(M, ErrorStr);
if (ErrorStr)
*ErrorStr = "Interpreter has not been linked in.";
- return 0;
+ return nullptr;
}
- if ((WhichEngine & EngineKind::JIT) && ExecutionEngine::JITCtor == 0 &&
- ExecutionEngine::MCJITCtor == 0) {
+ if ((WhichEngine & EngineKind::JIT) && !ExecutionEngine::JITCtor &&
+ !ExecutionEngine::MCJITCtor) {
if (ErrorStr)
*ErrorStr = "JIT has not been linked in.";
}
- return 0;
+ return nullptr;
}
void *ExecutionEngine::getPointerToGlobal(const GlobalValue *GV) {
return getPointerToFunction(F);
MutexGuard locked(lock);
- if (void *P = EEState.getGlobalAddressMap(locked)[GV])
+ if (void *P = EEState.getGlobalAddressMap()[GV])
return P;
// Global variable might have been added since interpreter started.
else
llvm_unreachable("Global hasn't had an address allocated yet!");
- return EEState.getGlobalAddressMap(locked)[GV];
+ return EEState.getGlobalAddressMap()[GV];
}
/// \brief Converts a Constant* into a GenericValue, including handling of
if (isa<UndefValue>(C)) {
GenericValue Result;
switch (C->getType()->getTypeID()) {
+ default:
+ break;
case Type::IntegerTyID:
case Type::X86_FP80TyID:
case Type::FP128TyID:
// with the correct bit width.
Result.IntVal = APInt(C->getType()->getPrimitiveSizeInBits(), 0);
break;
- default:
+ case Type::StructTyID: {
+ // if the whole struct is 'undef' just reserve memory for the value.
+ if(StructType *STy = dyn_cast<StructType>(C->getType())) {
+ unsigned int elemNum = STy->getNumElements();
+ Result.AggregateVal.resize(elemNum);
+ for (unsigned int i = 0; i < elemNum; ++i) {
+ Type *ElemTy = STy->getElementType(i);
+ if (ElemTy->isIntegerTy())
+ Result.AggregateVal[i].IntVal =
+ APInt(ElemTy->getPrimitiveSizeInBits(), 0);
+ else if (ElemTy->isAggregateType()) {
+ const Constant *ElemUndef = UndefValue::get(ElemTy);
+ Result.AggregateVal[i] = getConstantValue(ElemUndef);
+ }
+ }
+ }
+ }
+ break;
+ case Type::VectorTyID:
+ // if the whole vector is 'undef' just reserve memory for the value.
+ const VectorType* VTy = dyn_cast<VectorType>(C->getType());
+ const Type *ElemTy = VTy->getElementType();
+ unsigned int elemNum = VTy->getNumElements();
+ Result.AggregateVal.resize(elemNum);
+ if (ElemTy->isIntegerTy())
+ for (unsigned int i = 0; i < elemNum; ++i)
+ Result.AggregateVal[i].IntVal =
+ APInt(ElemTy->getPrimitiveSizeInBits(), 0);
break;
}
return Result;
case Instruction::GetElementPtr: {
// Compute the index
GenericValue Result = getConstantValue(Op0);
- SmallVector<Value*, 8> Indices(CE->op_begin()+1, CE->op_end());
- uint64_t Offset = TD->getIndexedOffset(Op0->getType(), Indices);
+ APInt Offset(DL->getPointerSizeInBits(), 0);
+ cast<GEPOperator>(CE)->accumulateConstantOffset(*DL, Offset);
char* tmp = (char*) Result.PointerVal;
- Result = PTOGV(tmp + Offset);
+ Result = PTOGV(tmp + Offset.getSExtValue());
return Result;
}
case Instruction::Trunc: {
else if (Op0->getType()->isDoubleTy())
GV.IntVal = APIntOps::RoundDoubleToAPInt(GV.DoubleVal, BitWidth);
else if (Op0->getType()->isX86_FP80Ty()) {
- APFloat apf = APFloat(GV.IntVal);
+ APFloat apf = APFloat(APFloat::x87DoubleExtended, GV.IntVal);
uint64_t v;
bool ignored;
(void)apf.convertToInteger(&v, BitWidth,
}
case Instruction::PtrToInt: {
GenericValue GV = getConstantValue(Op0);
- uint32_t PtrWidth = TD->getTypeSizeInBits(Op0->getType());
+ uint32_t PtrWidth = DL->getTypeSizeInBits(Op0->getType());
assert(PtrWidth <= 64 && "Bad pointer width");
GV.IntVal = APInt(PtrWidth, uintptr_t(GV.PointerVal));
- uint32_t IntWidth = TD->getTypeSizeInBits(CE->getType());
+ uint32_t IntWidth = DL->getTypeSizeInBits(CE->getType());
GV.IntVal = GV.IntVal.zextOrTrunc(IntWidth);
return GV;
}
case Instruction::IntToPtr: {
GenericValue GV = getConstantValue(Op0);
- uint32_t PtrWidth = TD->getTypeSizeInBits(CE->getType());
+ uint32_t PtrWidth = DL->getTypeSizeInBits(CE->getType());
GV.IntVal = GV.IntVal.zextOrTrunc(PtrWidth);
assert(GV.IntVal.getBitWidth() <= 64 && "Bad pointer width");
GV.PointerVal = PointerTy(uintptr_t(GV.IntVal.getZExtValue()));
case Type::X86_FP80TyID:
case Type::PPC_FP128TyID:
case Type::FP128TyID: {
- APFloat apfLHS = APFloat(LHS.IntVal);
+ const fltSemantics &Sem = CE->getOperand(0)->getType()->getFltSemantics();
+ APFloat apfLHS = APFloat(Sem, LHS.IntVal);
switch (CE->getOpcode()) {
default: llvm_unreachable("Invalid long double opcode");
case Instruction::FAdd:
- apfLHS.add(APFloat(RHS.IntVal), APFloat::rmNearestTiesToEven);
+ apfLHS.add(APFloat(Sem, RHS.IntVal), APFloat::rmNearestTiesToEven);
GV.IntVal = apfLHS.bitcastToAPInt();
break;
case Instruction::FSub:
- apfLHS.subtract(APFloat(RHS.IntVal), APFloat::rmNearestTiesToEven);
+ apfLHS.subtract(APFloat(Sem, RHS.IntVal),
+ APFloat::rmNearestTiesToEven);
GV.IntVal = apfLHS.bitcastToAPInt();
break;
case Instruction::FMul:
- apfLHS.multiply(APFloat(RHS.IntVal), APFloat::rmNearestTiesToEven);
+ apfLHS.multiply(APFloat(Sem, RHS.IntVal),
+ APFloat::rmNearestTiesToEven);
GV.IntVal = apfLHS.bitcastToAPInt();
break;
case Instruction::FDiv:
- apfLHS.divide(APFloat(RHS.IntVal), APFloat::rmNearestTiesToEven);
+ apfLHS.divide(APFloat(Sem, RHS.IntVal),
+ APFloat::rmNearestTiesToEven);
GV.IntVal = apfLHS.bitcastToAPInt();
break;
case Instruction::FRem:
- apfLHS.mod(APFloat(RHS.IntVal), APFloat::rmNearestTiesToEven);
+ apfLHS.mod(APFloat(Sem, RHS.IntVal),
+ APFloat::rmNearestTiesToEven);
GV.IntVal = apfLHS.bitcastToAPInt();
break;
}
break;
case Type::PointerTyID:
if (isa<ConstantPointerNull>(C))
- Result.PointerVal = 0;
+ Result.PointerVal = nullptr;
else if (const Function *F = dyn_cast<Function>(C))
Result = PTOGV(getPointerToFunctionOrStub(const_cast<Function*>(F)));
else if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(C))
else
llvm_unreachable("Unknown constant pointer type!");
break;
+ case Type::VectorTyID: {
+ unsigned elemNum;
+ Type* ElemTy;
+ const ConstantDataVector *CDV = dyn_cast<ConstantDataVector>(C);
+ const ConstantVector *CV = dyn_cast<ConstantVector>(C);
+ const ConstantAggregateZero *CAZ = dyn_cast<ConstantAggregateZero>(C);
+
+ if (CDV) {
+ elemNum = CDV->getNumElements();
+ ElemTy = CDV->getElementType();
+ } else if (CV || CAZ) {
+ VectorType* VTy = dyn_cast<VectorType>(C->getType());
+ elemNum = VTy->getNumElements();
+ ElemTy = VTy->getElementType();
+ } else {
+ llvm_unreachable("Unknown constant vector type!");
+ }
+
+ Result.AggregateVal.resize(elemNum);
+ // Check if vector holds floats.
+ if(ElemTy->isFloatTy()) {
+ if (CAZ) {
+ GenericValue floatZero;
+ floatZero.FloatVal = 0.f;
+ std::fill(Result.AggregateVal.begin(), Result.AggregateVal.end(),
+ floatZero);
+ break;
+ }
+ if(CV) {
+ for (unsigned i = 0; i < elemNum; ++i)
+ if (!isa<UndefValue>(CV->getOperand(i)))
+ Result.AggregateVal[i].FloatVal = cast<ConstantFP>(
+ CV->getOperand(i))->getValueAPF().convertToFloat();
+ break;
+ }
+ if(CDV)
+ for (unsigned i = 0; i < elemNum; ++i)
+ Result.AggregateVal[i].FloatVal = CDV->getElementAsFloat(i);
+
+ break;
+ }
+ // Check if vector holds doubles.
+ if (ElemTy->isDoubleTy()) {
+ if (CAZ) {
+ GenericValue doubleZero;
+ doubleZero.DoubleVal = 0.0;
+ std::fill(Result.AggregateVal.begin(), Result.AggregateVal.end(),
+ doubleZero);
+ break;
+ }
+ if(CV) {
+ for (unsigned i = 0; i < elemNum; ++i)
+ if (!isa<UndefValue>(CV->getOperand(i)))
+ Result.AggregateVal[i].DoubleVal = cast<ConstantFP>(
+ CV->getOperand(i))->getValueAPF().convertToDouble();
+ break;
+ }
+ if(CDV)
+ for (unsigned i = 0; i < elemNum; ++i)
+ Result.AggregateVal[i].DoubleVal = CDV->getElementAsDouble(i);
+
+ break;
+ }
+ // Check if vector holds integers.
+ if (ElemTy->isIntegerTy()) {
+ if (CAZ) {
+ GenericValue intZero;
+ intZero.IntVal = APInt(ElemTy->getScalarSizeInBits(), 0ull);
+ std::fill(Result.AggregateVal.begin(), Result.AggregateVal.end(),
+ intZero);
+ break;
+ }
+ if(CV) {
+ for (unsigned i = 0; i < elemNum; ++i)
+ if (!isa<UndefValue>(CV->getOperand(i)))
+ Result.AggregateVal[i].IntVal = cast<ConstantInt>(
+ CV->getOperand(i))->getValue();
+ else {
+ Result.AggregateVal[i].IntVal =
+ APInt(CV->getOperand(i)->getType()->getPrimitiveSizeInBits(), 0);
+ }
+ break;
+ }
+ if(CDV)
+ for (unsigned i = 0; i < elemNum; ++i)
+ Result.AggregateVal[i].IntVal = APInt(
+ CDV->getElementType()->getPrimitiveSizeInBits(),
+ CDV->getElementAsInteger(i));
+
+ break;
+ }
+ llvm_unreachable("Unknown constant pointer type!");
+ }
+ break;
+
default:
SmallString<256> Msg;
raw_svector_ostream OS(Msg);
assert((IntVal.getBitWidth()+7)/8 >= StoreBytes && "Integer too small!");
const uint8_t *Src = (const uint8_t *)IntVal.getRawData();
- if (sys::isLittleEndianHost()) {
+ if (sys::IsLittleEndianHost) {
// Little-endian host - the source is ordered from LSB to MSB. Order the
// destination from LSB to MSB: Do a straight copy.
memcpy(Dst, Src, StoreBytes);
const unsigned StoreBytes = getDataLayout()->getTypeStoreSize(Ty);
switch (Ty->getTypeID()) {
+ default:
+ dbgs() << "Cannot store value of type " << *Ty << "!\n";
+ break;
case Type::IntegerTyID:
StoreIntToMemory(Val.IntVal, (uint8_t*)Ptr, StoreBytes);
break;
*((PointerTy*)Ptr) = Val.PointerVal;
break;
- default:
- dbgs() << "Cannot store value of type " << *Ty << "!\n";
+ case Type::VectorTyID:
+ for (unsigned i = 0; i < Val.AggregateVal.size(); ++i) {
+ if (cast<VectorType>(Ty)->getElementType()->isDoubleTy())
+ *(((double*)Ptr)+i) = Val.AggregateVal[i].DoubleVal;
+ if (cast<VectorType>(Ty)->getElementType()->isFloatTy())
+ *(((float*)Ptr)+i) = Val.AggregateVal[i].FloatVal;
+ if (cast<VectorType>(Ty)->getElementType()->isIntegerTy()) {
+ unsigned numOfBytes =(Val.AggregateVal[i].IntVal.getBitWidth()+7)/8;
+ StoreIntToMemory(Val.AggregateVal[i].IntVal,
+ (uint8_t*)Ptr + numOfBytes*i, numOfBytes);
+ }
+ }
+ break;
}
- if (sys::isLittleEndianHost() != getDataLayout()->isLittleEndian())
+ if (sys::IsLittleEndianHost != getDataLayout()->isLittleEndian())
// Host and target are different endian - reverse the stored bytes.
std::reverse((uint8_t*)Ptr, StoreBytes + (uint8_t*)Ptr);
}
/// from Src into IntVal, which is assumed to be wide enough and to hold zero.
static void LoadIntFromMemory(APInt &IntVal, uint8_t *Src, unsigned LoadBytes) {
assert((IntVal.getBitWidth()+7)/8 >= LoadBytes && "Integer too small!");
- uint8_t *Dst = (uint8_t *)IntVal.getRawData();
+ uint8_t *Dst = reinterpret_cast<uint8_t *>(
+ const_cast<uint64_t *>(IntVal.getRawData()));
- if (sys::isLittleEndianHost())
+ if (sys::IsLittleEndianHost)
// Little-endian host - the destination must be ordered from LSB to MSB.
// The source is ordered from LSB to MSB: Do a straight copy.
memcpy(Dst, Src, LoadBytes);
Result.IntVal = APInt(80, y);
break;
}
+ case Type::VectorTyID: {
+ const VectorType *VT = cast<VectorType>(Ty);
+ const Type *ElemT = VT->getElementType();
+ const unsigned numElems = VT->getNumElements();
+ if (ElemT->isFloatTy()) {
+ Result.AggregateVal.resize(numElems);
+ for (unsigned i = 0; i < numElems; ++i)
+ Result.AggregateVal[i].FloatVal = *((float*)Ptr+i);
+ }
+ if (ElemT->isDoubleTy()) {
+ Result.AggregateVal.resize(numElems);
+ for (unsigned i = 0; i < numElems; ++i)
+ Result.AggregateVal[i].DoubleVal = *((double*)Ptr+i);
+ }
+ if (ElemT->isIntegerTy()) {
+ GenericValue intZero;
+ const unsigned elemBitWidth = cast<IntegerType>(ElemT)->getBitWidth();
+ intZero.IntVal = APInt(elemBitWidth, 0);
+ Result.AggregateVal.resize(numElems, intZero);
+ for (unsigned i = 0; i < numElems; ++i)
+ LoadIntFromMemory(Result.AggregateVal[i].IntVal,
+ (uint8_t*)Ptr+((elemBitWidth+7)/8)*i, (elemBitWidth+7)/8);
+ }
+ break;
+ }
default:
SmallString<256> Msg;
raw_svector_ostream OS(Msg);
if (Modules.size() != 1) {
for (unsigned m = 0, e = Modules.size(); m != e; ++m) {
Module &M = *Modules[m];
- for (Module::const_global_iterator I = M.global_begin(),
- E = M.global_end(); I != E; ++I) {
- const GlobalValue *GV = I;
- if (GV->hasLocalLinkage() || GV->isDeclaration() ||
- GV->hasAppendingLinkage() || !GV->hasName())
+ for (const auto &GV : M.globals()) {
+ if (GV.hasLocalLinkage() || GV.isDeclaration() ||
+ GV.hasAppendingLinkage() || !GV.hasName())
continue;// Ignore external globals and globals with internal linkage.
const GlobalValue *&GVEntry =
- LinkedGlobalsMap[std::make_pair(GV->getName(), GV->getType())];
+ LinkedGlobalsMap[std::make_pair(GV.getName(), GV.getType())];
// If this is the first time we've seen this global, it is the canonical
// version.
if (!GVEntry) {
- GVEntry = GV;
+ GVEntry = &GV;
continue;
}
// If the existing global is strong, never replace it.
- if (GVEntry->hasExternalLinkage() ||
- GVEntry->hasDLLImportLinkage() ||
- GVEntry->hasDLLExportLinkage())
+ if (GVEntry->hasExternalLinkage())
continue;
// Otherwise, we know it's linkonce/weak, replace it if this is a strong
// symbol. FIXME is this right for common?
- if (GV->hasExternalLinkage() || GVEntry->hasExternalWeakLinkage())
- GVEntry = GV;
+ if (GV.hasExternalLinkage() || GVEntry->hasExternalWeakLinkage())
+ GVEntry = &GV;
}
}
}
std::vector<const GlobalValue*> NonCanonicalGlobals;
for (unsigned m = 0, e = Modules.size(); m != e; ++m) {
Module &M = *Modules[m];
- for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
- I != E; ++I) {
+ for (const auto &GV : M.globals()) {
// In the multi-module case, see what this global maps to.
if (!LinkedGlobalsMap.empty()) {
if (const GlobalValue *GVEntry =
- LinkedGlobalsMap[std::make_pair(I->getName(), I->getType())]) {
+ LinkedGlobalsMap[std::make_pair(GV.getName(), GV.getType())]) {
// If something else is the canonical global, ignore this one.
- if (GVEntry != &*I) {
- NonCanonicalGlobals.push_back(I);
+ if (GVEntry != &GV) {
+ NonCanonicalGlobals.push_back(&GV);
continue;
}
}
}
- if (!I->isDeclaration()) {
- addGlobalMapping(I, getMemoryForGV(I));
+ if (!GV.isDeclaration()) {
+ addGlobalMapping(&GV, getMemoryForGV(&GV));
} else {
// External variable reference. Try to use the dynamic loader to
// get a pointer to it.
if (void *SymAddr =
- sys::DynamicLibrary::SearchForAddressOfSymbol(I->getName()))
- addGlobalMapping(I, SymAddr);
+ sys::DynamicLibrary::SearchForAddressOfSymbol(GV.getName()))
+ addGlobalMapping(&GV, SymAddr);
else {
report_fatal_error("Could not resolve external global address: "
- +I->getName());
+ +GV.getName());
}
}
}
// Now that all of the globals are set up in memory, loop through them all
// and initialize their contents.
- for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
- I != E; ++I) {
- if (!I->isDeclaration()) {
+ for (const auto &GV : M.globals()) {
+ if (!GV.isDeclaration()) {
if (!LinkedGlobalsMap.empty()) {
if (const GlobalValue *GVEntry =
- LinkedGlobalsMap[std::make_pair(I->getName(), I->getType())])
- if (GVEntry != &*I) // Not the canonical variable.
+ LinkedGlobalsMap[std::make_pair(GV.getName(), GV.getType())])
+ if (GVEntry != &GV) // Not the canonical variable.
continue;
}
- EmitGlobalVariable(I);
+ EmitGlobalVariable(&GV);
}
}
}
void ExecutionEngine::EmitGlobalVariable(const GlobalVariable *GV) {
void *GA = getPointerToGlobalIfAvailable(GV);
- if (GA == 0) {
+ if (!GA) {
// If it's not already specified, allocate memory for the global.
GA = getMemoryForGV(GV);
+
+ // If we failed to allocate memory for this global, return.
+ if (!GA) return;
+
addGlobalMapping(GV, GA);
}