1 //===----- JITTargetMachineBuilder.cpp - Build TargetMachines for JIT -----===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "llvm/ExecutionEngine/Orc/JITTargetMachineBuilder.h" 10 11 #include "llvm/Support/TargetRegistry.h" 12 13 namespace llvm { 14 namespace orc { 15 16 JITTargetMachineBuilder::JITTargetMachineBuilder(Triple TT) 17 : TT(std::move(TT)) { 18 Options.EmulatedTLS = true; 19 Options.ExplicitEmulatedTLS = true; 20 } 21 22 Expected<JITTargetMachineBuilder> JITTargetMachineBuilder::detectHost() { 23 // FIXME: getProcessTriple is bogus. It returns the host LLVM was compiled on, 24 // rather than a valid triple for the current process. 25 return JITTargetMachineBuilder(Triple(sys::getProcessTriple())); 26 } 27 28 Expected<std::unique_ptr<TargetMachine>> 29 JITTargetMachineBuilder::createTargetMachine() { 30 31 std::string ErrMsg; 32 auto *TheTarget = TargetRegistry::lookupTarget(TT.getTriple(), ErrMsg); 33 if (!TheTarget) 34 return make_error<StringError>(std::move(ErrMsg), inconvertibleErrorCode()); 35 36 auto *TM = 37 TheTarget->createTargetMachine(TT.getTriple(), CPU, Features.getString(), 38 Options, RM, CM, OptLevel, /*JIT*/ true); 39 if (!TM) 40 return make_error<StringError>("Could not allocate target machine", 41 inconvertibleErrorCode()); 42 43 return std::unique_ptr<TargetMachine>(TM); 44 } 45 46 JITTargetMachineBuilder &JITTargetMachineBuilder::addFeatures( 47 const std::vector<std::string> &FeatureVec) { 48 for (const auto &F : FeatureVec) 49 Features.AddFeature(F); 50 return *this; 51 } 52 53 } // End namespace orc. 54 } // End namespace llvm. 55