llvm-6502/lib/Target/MSP430/MSP430TargetMachine.cpp

//===-- MSP430TargetMachine.cpp - Define TargetMachine for MSP430 ---------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Top-level implementation for the MSP430 target.
//
//===----------------------------------------------------------------------===//

#include "MSP430.h"
#include "MSP430TargetAsmInfo.h"
#include "MSP430TargetMachine.h"
#include "llvm/Module.h"
#include "llvm/PassManager.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/Target/TargetAsmInfo.h"
#include "llvm/Target/TargetMachineRegistry.h"

using namespace llvm;

/// MSP430TargetMachineModule - Note that this is used on hosts that
/// cannot link in a library unless there are references into the
/// library.  In particular, it seems that it is not possible to get
/// things to work on Win32 without this.  Though it is unused, do not
/// remove it.
extern "C" int MSP430TargetMachineModule;
int MSP430TargetMachineModule = 0;


// Register the targets
static RegisterTarget<MSP430TargetMachine>
X("msp430", "MSP430 [experimental]");

MSP430TargetMachine::MSP430TargetMachine(const Module &M,
                                         const std::string &FS) :
  Subtarget(*this, M, FS),
  DataLayout("e-p:16:8:8-i8:8:8-i16:8:8-i32:8:8"),
  InstrInfo(*this), TLInfo(*this),
  FrameInfo(TargetFrameInfo::StackGrowsUp, 8, 0) { }


const TargetAsmInfo *MSP430TargetMachine::createTargetAsmInfo() const {
  return new MSP430TargetAsmInfo(*this);
}

bool MSP430TargetMachine::addInstSelector(PassManagerBase &PM, bool Fast) {
  // Install an instruction selector.
  PM.add(createMSP430ISelDag(*this));
  return false;
}

bool MSP430TargetMachine::
addAssemblyEmitter(PassManagerBase &PM, bool Fast, bool Verbose,
                   raw_ostream &Out) {
  // Output assembly language.
  PM.add(createMSP430CodePrinterPass(Out, *this, Fast, Verbose));
  return false;
}