MSP430TargetMachine.cpp revision a96751fc8ff1cc9a225ffbba73de53e2b9e1ae35
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 "MSP430.h" 15#include "MSP430TargetAsmInfo.h" 16#include "MSP430TargetMachine.h" 17#include "llvm/Module.h" 18#include "llvm/PassManager.h" 19#include "llvm/CodeGen/Passes.h" 20#include "llvm/Target/TargetAsmInfo.h" 21#include "llvm/Target/TargetMachineRegistry.h" 22 23using namespace llvm; 24 25/// MSP430TargetMachineModule - Note that this is used on hosts that 26/// cannot link in a library unless there are references into the 27/// library. In particular, it seems that it is not possible to get 28/// things to work on Win32 without this. Though it is unused, do not 29/// remove it. 30extern "C" int MSP430TargetMachineModule; 31int MSP430TargetMachineModule = 0; 32 33 34// Register the targets 35static RegisterTarget<MSP430TargetMachine> 36X("msp430", "MSP430 [experimental]"); 37 38// Force static initialization. 39extern "C" void LLVMInitializeMSP430Target() { } 40 41MSP430TargetMachine::MSP430TargetMachine(const Module &M, 42 const std::string &FS) : 43 Subtarget(*this, M, FS), 44 // FIXME: Check TargetData string. 45 DataLayout("e-p:16:8:8-i8:8:8-i16:8:8-i32:8:8"), 46 InstrInfo(*this), TLInfo(*this), 47 FrameInfo(TargetFrameInfo::StackGrowsDown, 2, -2) { } 48 49const TargetAsmInfo *MSP430TargetMachine::createTargetAsmInfo() const { 50 return new MSP430TargetAsmInfo(*this); 51} 52 53bool MSP430TargetMachine::addInstSelector(PassManagerBase &PM, 54 CodeGenOpt::Level OptLevel) { 55 // Install an instruction selector. 56 PM.add(createMSP430ISelDag(*this, OptLevel)); 57 return false; 58} 59 60bool MSP430TargetMachine::addAssemblyEmitter(PassManagerBase &PM, 61 CodeGenOpt::Level OptLevel, 62 bool Verbose, 63 raw_ostream &Out) { 64 // Output assembly language. 65 PM.add(createMSP430CodePrinterPass(Out, *this, OptLevel, Verbose)); 66 return false; 67} 68 69unsigned MSP430TargetMachine::getModuleMatchQuality(const Module &M) { 70 std::string TT = M.getTargetTriple(); 71 72 // We strongly match msp430 73 if (TT.size() >= 6 && TT[0] == 'm' && TT[1] == 's' && TT[2] == 'p' && 74 TT[3] == '4' && TT[4] == '3' && TT[5] == '0') 75 return 20; 76 77 return 0; 78} 79 80