ExecutionEngine *JIT::createJIT(ModuleProvider *MP,
std::string *ErrorStr,
JITMemoryManager *JMM,
CodeGenOpt::Level OptLevel,
bool GVsWithCode,
CodeModel::Model CMM) {
// 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;
// Pick a target either via -march or by guessing the native arch.
TargetMachine *TM = JIT::selectTarget(MP, ErrorStr);
if (!TM || (ErrorStr && ErrorStr->length() > 0)) return 0;
TM->setCodeModel(CMM);
// If the target supports JIT code generation, create a the JIT.
if (TargetJITInfo *TJ = TM->getJITInfo()) {
return new JIT(MP, *TM, *TJ, JMM, OptLevel, GVsWithCode);
} else {
if (ErrorStr)
*ErrorStr = "target does not support JIT code generation";
return 0;
}
}
ExecutionEngine *JIT::createJIT(Module *M,
std::string *ErrorStr,
JITMemoryManager *JMM,
CodeGenOpt::Level OptLevel,
bool GVsWithCode,
CodeModel::Model CMM,
StringRef MArch,
StringRef MCPU,
const SmallVectorImpl<std::string>& MAttrs) {
// Try to register the program as a source of symbols to resolve against.
sys::DynamicLibrary::LoadLibraryPermanently(0, NULL);
/* CLAMAV LOCAL: no dlopen */
// if (sys::DynamicLibrary::LoadLibraryPermanently(0, ErrorStr))
// return 0;
// Pick a target either via -march or by guessing the native arch.
TargetMachine *TM = JIT::selectTarget(M, MArch, MCPU, MAttrs, ErrorStr);
if (!TM || (ErrorStr && ErrorStr->length() > 0)) return 0;
TM->setCodeModel(CMM);
// If the target supports JIT code generation, create a the JIT.
if (TargetJITInfo *TJ = TM->getJITInfo()) {
return new JIT(M, *TM, *TJ, JMM, OptLevel, GVsWithCode);
} else {
if (ErrorStr)
*ErrorStr = "target does not support JIT code generation";
return 0;
}
}
ExecutionEngine *MCJIT::createJIT(Module *M,
std::string *ErrorStr,
JITMemoryManager *JMM,
CodeGenOpt::Level OptLevel,
bool GVsWithCode,
CodeModel::Model CMM,
StringRef MArch,
StringRef MCPU,
const SmallVectorImpl<std::string>& MAttrs) {
// Try to register the program as a source of symbols to resolve against.
//
// FIXME: Don't do this here.
sys::DynamicLibrary::LoadLibraryPermanently(0, NULL);
// Pick a target either via -march or by guessing the native arch.
//
// FIXME: This should be lifted out of here, it isn't something which should
// be part of the JIT policy, rather the burden for this selection should be
// pushed to clients.
TargetMachine *TM = MCJIT::selectTarget(M, MArch, MCPU, MAttrs, ErrorStr);
if (!TM || (ErrorStr && ErrorStr->length() > 0)) return 0;
TM->setCodeModel(CMM);
// If the target supports JIT code generation, create the JIT.
if (TargetJITInfo *TJ = TM->getJITInfo())
return new MCJIT(M, *TM, *TJ, JMM, OptLevel, GVsWithCode);
if (ErrorStr)
*ErrorStr = "target does not support JIT code generation";
return 0;
}
/// create - Create an return a new JIT compiler if there is one available
/// for the current target. Otherwise, return null.
///
ExecutionEngine *JIT::create(ModuleProvider *MP, IntrinsicLowering *IL) {
if (MArch == 0) {
std::string Error;
MArch = TargetMachineRegistry::getClosestTargetForJIT(Error);
if (MArch == 0) return 0;
} else if (MArch->JITMatchQualityFn() == 0) {
std::cerr << "WARNING: This target JIT is not designed for the host you are"
<< " running. If bad things happen, please choose a different "
<< "-march switch.\n";
}
// Allocate a target...
TargetMachine *Target = MArch->CtorFn(*MP->getModule(), IL);
assert(Target && "Could not allocate target machine!");
// If the target supports JIT code generation, return a new JIT now.
if (TargetJITInfo *TJ = Target->getJITInfo())
return new JIT(MP, *Target, *TJ);
return 0;
}
