#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/DynamicLibrary.h"
#include "llvm/Support/Host.h"
+#include "llvm/Support/TargetRegistry.h"
#include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetMachine.h"
#include <cmath>
#include <cstring>
using namespace llvm;
Module *M,
std::string *ErrorStr,
JITMemoryManager *JMM,
- CodeGenOpt::Level OptLevel,
bool GVsWithCode,
- CodeModel::Model CMM,
- StringRef MArch,
- StringRef MCPU,
- const SmallVectorImpl<std::string>& MAttrs) = 0;
+ TargetMachine *TM) = 0;
ExecutionEngine *(*ExecutionEngine::MCJITCtor)(
Module *M,
std::string *ErrorStr,
JITMemoryManager *JMM,
- CodeGenOpt::Level OptLevel,
bool GVsWithCode,
- CodeModel::Model CMM,
- StringRef MArch,
- StringRef MCPU,
- const SmallVectorImpl<std::string>& MAttrs) = 0;
+ TargetMachine *TM) = 0;
ExecutionEngine *(*ExecutionEngine::InterpCtor)(Module *M,
std::string *ErrorStr) = 0;
/// \brief Returns the address the GlobalVariable should be written into. The
/// GVMemoryBlock object prefixes that.
static char *Create(const GlobalVariable *GV, const TargetData& TD) {
- const Type *ElTy = GV->getType()->getElementType();
+ Type *ElTy = GV->getType()->getElementType();
size_t GVSize = (size_t)TD.getTypeAllocSize(ElTy);
void *RawMemory = ::operator new(
TargetData::RoundUpAlignment(sizeof(GVMemoryBlock),
Array = new char[(InputArgv.size()+1)*PtrSize];
DEBUG(dbgs() << "JIT: ARGV = " << (void*)Array << "\n");
- const Type *SBytePtr = Type::getInt8PtrTy(C);
+ Type *SBytePtr = Type::getInt8PtrTy(C);
for (unsigned i = 0; i != InputArgv.size(); ++i) {
unsigned Size = InputArgv[i].size()+1;
// Should be an array of '{ i32, void ()* }' structs. The first value is
// the init priority, which we ignore.
+ if (isa<ConstantAggregateZero>(GV->getInitializer()))
+ return;
ConstantArray *InitList = cast<ConstantArray>(GV->getInitializer());
for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i) {
+ if (isa<ConstantAggregateZero>(InitList->getOperand(i)))
+ continue;
ConstantStruct *CS = cast<ConstantStruct>(InitList->getOperand(i));
Constant *FP = CS->getOperand(1);
if (FP->isNullValue())
- break; // Found a null terminator, exit.
+ continue; // Found a sentinal value, ignore.
// Strip off constant expression casts.
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(FP))
// Check main() type
unsigned NumArgs = Fn->getFunctionType()->getNumParams();
- const FunctionType *FTy = Fn->getFunctionType();
- const Type* PPInt8Ty = Type::getInt8PtrTy(Fn->getContext())->getPointerTo();
+ FunctionType *FTy = Fn->getFunctionType();
+ Type* PPInt8Ty = Type::getInt8PtrTy(Fn->getContext())->getPointerTo();
// Check the argument types.
if (NumArgs > 3)
.create();
}
+/// createJIT - This is the factory method for creating a JIT for the current
+/// machine, it does not fall back to the interpreter. This takes ownership
+/// of the module.
+ExecutionEngine *ExecutionEngine::createJIT(Module *M,
+ std::string *ErrorStr,
+ JITMemoryManager *JMM,
+ CodeGenOpt::Level OL,
+ bool GVsWithCode,
+ Reloc::Model RM,
+ CodeModel::Model CMM) {
+ if (ExecutionEngine::JITCtor == 0) {
+ if (ErrorStr)
+ *ErrorStr = "JIT has not been linked in.";
+ return 0;
+ }
+
+ // Use the defaults for extra parameters. Users can use EngineBuilder to
+ // set them.
+ StringRef MArch = "";
+ StringRef MCPU = "";
+ SmallVector<std::string, 1> MAttrs;
+
+ Triple TT(M->getTargetTriple());
+ // TODO: permit custom TargetOptions here
+ TargetMachine *TM =
+ EngineBuilder::selectTarget(TT, MArch, MCPU, MAttrs, TargetOptions(), RM,
+ CMM, OL, ErrorStr);
+ if (!TM || (ErrorStr && ErrorStr->length() > 0)) return 0;
+
+ return ExecutionEngine::JITCtor(M, ErrorStr, JMM, GVsWithCode, TM);
+}
+
ExecutionEngine *EngineBuilder::create() {
// 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.
// Unless the interpreter was explicitly selected or the JIT is not linked,
// try making a JIT.
if (WhichEngine & EngineKind::JIT) {
- if (UseMCJIT && ExecutionEngine::MCJITCtor) {
- ExecutionEngine *EE =
- ExecutionEngine::MCJITCtor(M, ErrorStr, JMM, OptLevel,
- AllocateGVsWithCode, CMModel,
- MArch, MCPU, MAttrs);
- if (EE) return EE;
- } else if (ExecutionEngine::JITCtor) {
- ExecutionEngine *EE =
- ExecutionEngine::JITCtor(M, ErrorStr, JMM, OptLevel,
- AllocateGVsWithCode, CMModel,
- MArch, MCPU, MAttrs);
- if (EE) return EE;
+ Triple TT(M->getTargetTriple());
+ if (TargetMachine *TM = EngineBuilder::selectTarget(TT, MArch, MCPU, MAttrs,
+ Options,
+ RelocModel, CMModel,
+ OptLevel, ErrorStr)) {
+ if (!TM->getTarget().hasJIT()) {
+ errs() << "WARNING: This target JIT is not designed for the host"
+ << " you are running. If bad things happen, please choose"
+ << " a different -march switch.\n";
+ }
+
+ if (UseMCJIT && ExecutionEngine::MCJITCtor) {
+ ExecutionEngine *EE =
+ ExecutionEngine::MCJITCtor(M, ErrorStr, JMM,
+ AllocateGVsWithCode, TM);
+ if (EE) return EE;
+ } else if (ExecutionEngine::JITCtor) {
+ ExecutionEngine *EE =
+ ExecutionEngine::JITCtor(M, ErrorStr, JMM,
+ AllocateGVsWithCode, TM);
+ if (EE) return EE;
+ }
}
}
// 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[0], Indices.size());
+ uint64_t Offset = TD->getIndexedOffset(Op0->getType(), Indices);
char* tmp = (char*) Result.PointerVal;
Result = PTOGV(tmp + Offset);
}
case Instruction::BitCast: {
GenericValue GV = getConstantValue(Op0);
- const Type* DestTy = CE->getType();
+ Type* DestTy = CE->getType();
switch (Op0->getType()->getTypeID()) {
default: llvm_unreachable("Invalid bitcast operand");
case Type::IntegerTyID:
}
void ExecutionEngine::StoreValueToMemory(const GenericValue &Val,
- GenericValue *Ptr, const Type *Ty) {
+ GenericValue *Ptr, Type *Ty) {
const unsigned StoreBytes = getTargetData()->getTypeStoreSize(Ty);
switch (Ty->getTypeID()) {
case Type::PointerTyID:
// Ensure 64 bit target pointers are fully initialized on 32 bit hosts.
if (StoreBytes != sizeof(PointerTy))
- memset(Ptr, 0, StoreBytes);
+ memset(&(Ptr->PointerVal), 0, StoreBytes);
*((PointerTy*)Ptr) = Val.PointerVal;
break;
///
void ExecutionEngine::LoadValueFromMemory(GenericValue &Result,
GenericValue *Ptr,
- const Type *Ty) {
+ Type *Ty) {
const unsigned LoadBytes = getTargetData()->getTypeStoreSize(Ty);
switch (Ty->getTypeID()) {
// FIXME: Will not trap if loading a signaling NaN.
uint64_t y[2];
memcpy(y, Ptr, 10);
- Result.IntVal = APInt(80, 2, y);
+ Result.IntVal = APInt(80, y);
break;
}
default:
// Loop over all of the global variables in the program, allocating the memory
// to hold them. If there is more than one module, do a prepass over globals
// to figure out how the different modules should link together.
- std::map<std::pair<std::string, const Type*>,
+ std::map<std::pair<std::string, Type*>,
const GlobalValue*> LinkedGlobalsMap;
if (Modules.size() != 1) {
if (!GV->isThreadLocal())
InitializeMemory(GV->getInitializer(), GA);
- const Type *ElTy = GV->getType()->getElementType();
+ Type *ElTy = GV->getType()->getElementType();
size_t GVSize = (size_t)getTargetData()->getTypeAllocSize(ElTy);
NumInitBytes += (unsigned)GVSize;
++NumGlobals;
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