1*0b57cec5SDimitry Andric //===-- MSP430TargetMachine.cpp - Define TargetMachine for MSP430 ---------===// 2*0b57cec5SDimitry Andric // 3*0b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*0b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0b57cec5SDimitry Andric // 7*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 8*0b57cec5SDimitry Andric // 9*0b57cec5SDimitry Andric // Top-level implementation for the MSP430 target. 10*0b57cec5SDimitry Andric // 11*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 12*0b57cec5SDimitry Andric 13*0b57cec5SDimitry Andric #include "MSP430TargetMachine.h" 14*0b57cec5SDimitry Andric #include "MSP430.h" 15*0b57cec5SDimitry Andric #include "TargetInfo/MSP430TargetInfo.h" 16*0b57cec5SDimitry Andric #include "llvm/CodeGen/Passes.h" 17*0b57cec5SDimitry Andric #include "llvm/CodeGen/TargetLoweringObjectFileImpl.h" 18*0b57cec5SDimitry Andric #include "llvm/CodeGen/TargetPassConfig.h" 19*0b57cec5SDimitry Andric #include "llvm/IR/LegacyPassManager.h" 20*0b57cec5SDimitry Andric #include "llvm/MC/MCAsmInfo.h" 21*0b57cec5SDimitry Andric #include "llvm/Support/TargetRegistry.h" 22*0b57cec5SDimitry Andric using namespace llvm; 23*0b57cec5SDimitry Andric 24*0b57cec5SDimitry Andric extern "C" void LLVMInitializeMSP430Target() { 25*0b57cec5SDimitry Andric // Register the target. 26*0b57cec5SDimitry Andric RegisterTargetMachine<MSP430TargetMachine> X(getTheMSP430Target()); 27*0b57cec5SDimitry Andric } 28*0b57cec5SDimitry Andric 29*0b57cec5SDimitry Andric static Reloc::Model getEffectiveRelocModel(Optional<Reloc::Model> RM) { 30*0b57cec5SDimitry Andric if (!RM.hasValue()) 31*0b57cec5SDimitry Andric return Reloc::Static; 32*0b57cec5SDimitry Andric return *RM; 33*0b57cec5SDimitry Andric } 34*0b57cec5SDimitry Andric 35*0b57cec5SDimitry Andric static std::string computeDataLayout(const Triple &TT, StringRef CPU, 36*0b57cec5SDimitry Andric const TargetOptions &Options) { 37*0b57cec5SDimitry Andric return "e-m:e-p:16:16-i32:16-i64:16-f32:16-f64:16-a:8-n8:16-S16"; 38*0b57cec5SDimitry Andric } 39*0b57cec5SDimitry Andric 40*0b57cec5SDimitry Andric MSP430TargetMachine::MSP430TargetMachine(const Target &T, const Triple &TT, 41*0b57cec5SDimitry Andric StringRef CPU, StringRef FS, 42*0b57cec5SDimitry Andric const TargetOptions &Options, 43*0b57cec5SDimitry Andric Optional<Reloc::Model> RM, 44*0b57cec5SDimitry Andric Optional<CodeModel::Model> CM, 45*0b57cec5SDimitry Andric CodeGenOpt::Level OL, bool JIT) 46*0b57cec5SDimitry Andric : LLVMTargetMachine(T, computeDataLayout(TT, CPU, Options), TT, CPU, FS, 47*0b57cec5SDimitry Andric Options, getEffectiveRelocModel(RM), 48*0b57cec5SDimitry Andric getEffectiveCodeModel(CM, CodeModel::Small), OL), 49*0b57cec5SDimitry Andric TLOF(make_unique<TargetLoweringObjectFileELF>()), 50*0b57cec5SDimitry Andric Subtarget(TT, CPU, FS, *this) { 51*0b57cec5SDimitry Andric initAsmInfo(); 52*0b57cec5SDimitry Andric } 53*0b57cec5SDimitry Andric 54*0b57cec5SDimitry Andric MSP430TargetMachine::~MSP430TargetMachine() {} 55*0b57cec5SDimitry Andric 56*0b57cec5SDimitry Andric namespace { 57*0b57cec5SDimitry Andric /// MSP430 Code Generator Pass Configuration Options. 58*0b57cec5SDimitry Andric class MSP430PassConfig : public TargetPassConfig { 59*0b57cec5SDimitry Andric public: 60*0b57cec5SDimitry Andric MSP430PassConfig(MSP430TargetMachine &TM, PassManagerBase &PM) 61*0b57cec5SDimitry Andric : TargetPassConfig(TM, PM) {} 62*0b57cec5SDimitry Andric 63*0b57cec5SDimitry Andric MSP430TargetMachine &getMSP430TargetMachine() const { 64*0b57cec5SDimitry Andric return getTM<MSP430TargetMachine>(); 65*0b57cec5SDimitry Andric } 66*0b57cec5SDimitry Andric 67*0b57cec5SDimitry Andric bool addInstSelector() override; 68*0b57cec5SDimitry Andric void addPreEmitPass() override; 69*0b57cec5SDimitry Andric }; 70*0b57cec5SDimitry Andric } // namespace 71*0b57cec5SDimitry Andric 72*0b57cec5SDimitry Andric TargetPassConfig *MSP430TargetMachine::createPassConfig(PassManagerBase &PM) { 73*0b57cec5SDimitry Andric return new MSP430PassConfig(*this, PM); 74*0b57cec5SDimitry Andric } 75*0b57cec5SDimitry Andric 76*0b57cec5SDimitry Andric bool MSP430PassConfig::addInstSelector() { 77*0b57cec5SDimitry Andric // Install an instruction selector. 78*0b57cec5SDimitry Andric addPass(createMSP430ISelDag(getMSP430TargetMachine(), getOptLevel())); 79*0b57cec5SDimitry Andric return false; 80*0b57cec5SDimitry Andric } 81*0b57cec5SDimitry Andric 82*0b57cec5SDimitry Andric void MSP430PassConfig::addPreEmitPass() { 83*0b57cec5SDimitry Andric // Must run branch selection immediately preceding the asm printer. 84*0b57cec5SDimitry Andric addPass(createMSP430BranchSelectionPass(), false); 85*0b57cec5SDimitry Andric } 86