1 //===- ARCTargetMachine.cpp - Define TargetMachine for ARC ------*- C++ -*-===// 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 // 10 //===----------------------------------------------------------------------===// 11 12 #include "ARCTargetMachine.h" 13 #include "ARC.h" 14 #include "ARCTargetTransformInfo.h" 15 #include "TargetInfo/ARCTargetInfo.h" 16 #include "llvm/CodeGen/Passes.h" 17 #include "llvm/CodeGen/TargetLoweringObjectFileImpl.h" 18 #include "llvm/CodeGen/TargetPassConfig.h" 19 #include "llvm/Support/TargetRegistry.h" 20 21 using namespace llvm; 22 23 static Reloc::Model getRelocModel(Optional<Reloc::Model> RM) { 24 if (!RM.hasValue()) 25 return Reloc::Static; 26 return *RM; 27 } 28 29 /// ARCTargetMachine ctor - Create an ILP32 architecture model 30 ARCTargetMachine::ARCTargetMachine(const Target &T, const Triple &TT, 31 StringRef CPU, StringRef FS, 32 const TargetOptions &Options, 33 Optional<Reloc::Model> RM, 34 Optional<CodeModel::Model> CM, 35 CodeGenOpt::Level OL, bool JIT) 36 : LLVMTargetMachine(T, 37 "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-" 38 "f32:32:32-i64:32-f64:32-a:0:32-n32", 39 TT, CPU, FS, Options, getRelocModel(RM), 40 getEffectiveCodeModel(CM, CodeModel::Small), OL), 41 TLOF(std::make_unique<TargetLoweringObjectFileELF>()), 42 Subtarget(TT, std::string(CPU), std::string(FS), *this) { 43 initAsmInfo(); 44 } 45 46 ARCTargetMachine::~ARCTargetMachine() = default; 47 48 namespace { 49 50 /// ARC Code Generator Pass Configuration Options. 51 class ARCPassConfig : public TargetPassConfig { 52 public: 53 ARCPassConfig(ARCTargetMachine &TM, PassManagerBase &PM) 54 : TargetPassConfig(TM, PM) {} 55 56 ARCTargetMachine &getARCTargetMachine() const { 57 return getTM<ARCTargetMachine>(); 58 } 59 60 bool addInstSelector() override; 61 void addPreEmitPass() override; 62 void addPreRegAlloc() override; 63 }; 64 65 } // end anonymous namespace 66 67 TargetPassConfig *ARCTargetMachine::createPassConfig(PassManagerBase &PM) { 68 return new ARCPassConfig(*this, PM); 69 } 70 71 bool ARCPassConfig::addInstSelector() { 72 addPass(createARCISelDag(getARCTargetMachine(), getOptLevel())); 73 return false; 74 } 75 76 void ARCPassConfig::addPreEmitPass() { addPass(createARCBranchFinalizePass()); } 77 78 void ARCPassConfig::addPreRegAlloc() { 79 addPass(createARCExpandPseudosPass()); 80 addPass(createARCOptAddrMode()); 81 } 82 83 // Force static initialization. 84 extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeARCTarget() { 85 RegisterTargetMachine<ARCTargetMachine> X(getTheARCTarget()); 86 } 87 88 TargetTransformInfo 89 ARCTargetMachine::getTargetTransformInfo(const Function &F) { 90 return TargetTransformInfo(ARCTTIImpl(this, F)); 91 } 92