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 23 using 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. 30 extern "C" int MSP430TargetMachineModule; 31 int MSP430TargetMachineModule = 0; 32 33 34 // Register the targets 35 static RegisterTarget<MSP430TargetMachine> 36 X("msp430", "MSP430 [experimental]"); 37 38 MSP430TargetMachine::MSP430TargetMachine(const Module &M, 39 const std::string &FS) : 40 Subtarget(*this, M, FS), 41 // FIXME: Check TargetData string. 42 DataLayout("e-p:16:8:8-i8:8:8-i16:8:8-i32:8:8"), 43 InstrInfo(*this), TLInfo(*this), 44 FrameInfo(TargetFrameInfo::StackGrowsDown, 2, -2) { } 45 46 const TargetAsmInfo *MSP430TargetMachine::createTargetAsmInfo() const { 47 return new MSP430TargetAsmInfo(*this); 48 } 49 50 bool MSP430TargetMachine::addInstSelector(PassManagerBase &PM, 51 CodeGenOpt::Level OptLevel) { 52 // Install an instruction selector. 53 PM.add(createMSP430ISelDag(*this, OptLevel)); 54 return false; 55 } 56 57 bool MSP430TargetMachine::addAssemblyEmitter(PassManagerBase &PM, 58 CodeGenOpt::Level OptLevel, 59 bool Verbose, 60 raw_ostream &Out) { 61 // Output assembly language. 62 PM.add(createMSP430CodePrinterPass(Out, *this, OptLevel, Verbose)); 63 return false; 64 } 65 66 unsigned MSP430TargetMachine::getModuleMatchQuality(const Module &M) { 67 std::string TT = M.getTargetTriple(); 68 69 // We strongly match msp430 70 if (TT.size() >= 6 && TT[0] == 'm' && TT[1] == 's' && TT[2] == 'p' && 71 TT[3] == '4' && TT[4] == '3' && TT[5] == '0') 72 return 20; 73 74 return 0; 75 } 76 77