1 //===-- MSP430TargetMachine.cpp - Define TargetMachine for MSP430 ---------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // Top-level implementation for the MSP430 target. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "MSP430TargetMachine.h" 15 #include "MSP430.h" 16 #include "llvm/CodeGen/Passes.h" 17 #include "llvm/MC/MCAsmInfo.h" 18 #include "llvm/PassManager.h" 19 #include "llvm/Support/TargetRegistry.h" 20 using namespace llvm; 21 22 extern "C" void LLVMInitializeMSP430Target() { 23 // Register the target. 24 RegisterTargetMachine<MSP430TargetMachine> X(TheMSP430Target); 25 } 26 27 MSP430TargetMachine::MSP430TargetMachine(const Target &T, StringRef TT, 28 StringRef CPU, StringRef FS, 29 const TargetOptions &Options, 30 Reloc::Model RM, CodeModel::Model CM, 31 CodeGenOpt::Level OL) 32 : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL), 33 Subtarget(TT, CPU, FS, *this) { 34 initAsmInfo(); 35 } 36 37 namespace { 38 /// MSP430 Code Generator Pass Configuration Options. 39 class MSP430PassConfig : public TargetPassConfig { 40 public: 41 MSP430PassConfig(MSP430TargetMachine *TM, PassManagerBase &PM) 42 : TargetPassConfig(TM, PM) {} 43 44 MSP430TargetMachine &getMSP430TargetMachine() const { 45 return getTM<MSP430TargetMachine>(); 46 } 47 48 bool addInstSelector() override; 49 bool addPreEmitPass() override; 50 }; 51 } // namespace 52 53 TargetPassConfig *MSP430TargetMachine::createPassConfig(PassManagerBase &PM) { 54 return new MSP430PassConfig(this, PM); 55 } 56 57 bool MSP430PassConfig::addInstSelector() { 58 // Install an instruction selector. 59 addPass(createMSP430ISelDag(getMSP430TargetMachine(), getOptLevel())); 60 return false; 61 } 62 63 bool MSP430PassConfig::addPreEmitPass() { 64 // Must run branch selection immediately preceding the asm printer. 65 addPass(createMSP430BranchSelectionPass()); 66 return false; 67 } 68
