MSP430TargetMachine.cpp revision dce4a407a24b04eebc6a376f8e62b41aaa7b071f
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" 20using namespace llvm; 21 22extern "C" void LLVMInitializeMSP430Target() { 23 // Register the target. 24 RegisterTargetMachine<MSP430TargetMachine> X(TheMSP430Target); 25} 26 27MSP430TargetMachine::MSP430TargetMachine(const Target &T, 28 StringRef TT, 29 StringRef CPU, 30 StringRef FS, 31 const TargetOptions &Options, 32 Reloc::Model RM, CodeModel::Model CM, 33 CodeGenOpt::Level OL) 34 : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL), 35 Subtarget(TT, CPU, FS), 36 // FIXME: Check DataLayout string. 37 DL("e-m:e-p:16:16-i32:16:32-n8:16"), 38 InstrInfo(*this), TLInfo(*this), TSInfo(*this), 39 FrameLowering(Subtarget) { 40 initAsmInfo(); 41} 42 43namespace { 44/// MSP430 Code Generator Pass Configuration Options. 45class MSP430PassConfig : public TargetPassConfig { 46public: 47 MSP430PassConfig(MSP430TargetMachine *TM, PassManagerBase &PM) 48 : TargetPassConfig(TM, PM) {} 49 50 MSP430TargetMachine &getMSP430TargetMachine() const { 51 return getTM<MSP430TargetMachine>(); 52 } 53 54 bool addInstSelector() override; 55 bool addPreEmitPass() override; 56}; 57} // namespace 58 59TargetPassConfig *MSP430TargetMachine::createPassConfig(PassManagerBase &PM) { 60 return new MSP430PassConfig(this, PM); 61} 62 63bool MSP430PassConfig::addInstSelector() { 64 // Install an instruction selector. 65 addPass(createMSP430ISelDag(getMSP430TargetMachine(), getOptLevel())); 66 return false; 67} 68 69bool MSP430PassConfig::addPreEmitPass() { 70 // Must run branch selection immediately preceding the asm printer. 71 addPass(createMSP430BranchSelectionPass()); 72 return false; 73} 74