/// 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; }