void Builder::createJIT() {
InitializeNativeTarget();
std::string err;
EngineBuilder eb = EngineBuilder(this->_mod);
eb.setErrorStr(&err);
auto jit = eb.create();
this->_jit = jit;
if (!jit) {
std::cerr << "Impossible de créer le moteur JIT : " << err << std::endl;
}
}
ExecutionEngine* createExecutionEngine(Module* mod) {
if (globalExecEngine == 0)
{
//we first have to initialize the native target for code generation
const bool initFailed = InitializeNativeTarget();
if (initFailed) {
errs() << "ERROR: could not initialize native target (required for "
<< "LLVM execution engine)\n";
return NULL;
}
std::string errorMessage = "";
EngineBuilder eb = EngineBuilder(mod);
eb.setEngineKind(EngineKind::JIT);
eb.setErrorStr(&errorMessage);
eb.setJITMemoryManager(JITMemoryManager::CreateDefaultMemManager());
eb.setOptLevel(CodeGenOpt::Aggressive);
eb.setAllocateGVsWithCode(false);
eb.setCodeModel(CodeModel::Default);
//eb.setMArch("x86-64");
//eb.setMCPU("corei7");
//std::vector<std::string> attrs;
//attrs.push_back("+sse41");
//eb.setMAttrs(attrs);
globalExecEngine = eb.create();
if (errorMessage != "") {
errs() << "ERROR: could not create execution engine for module "
<< mod->getModuleIdentifier() << ": " << errorMessage << "\n";
return NULL;
}
if (!globalExecEngine) {
errs() << "ERROR: could not create execution engine for module "
<< mod->getModuleIdentifier() << "!\n";
return NULL;
}
}
return globalExecEngine;
}