MSP430TargetMachine.cpp revision 702adaba6d7442f180c6bc0bec3a2b19e1169ed9 
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 "MSP430MCAsmInfo.h"
16#include "MSP430TargetMachine.h"
17#include "llvm/PassManager.h"
18#include "llvm/CodeGen/Passes.h"
19#include "llvm/MC/MCAsmInfo.h"
20#include "llvm/Target/TargetRegistry.h"
21using namespace llvm;
22
23extern "C" void LLVMInitializeMSP430Target() {
24  // Register the target.
25  RegisterTargetMachine<MSP430TargetMachine> X(TheMSP430Target);
26  RegisterAsmInfo<MSP430MCAsmInfo> Z(TheMSP430Target);
27}
28
29MSP430TargetMachine::MSP430TargetMachine(const Target &T,
30                                         const std::string &TT,
31                                         const std::string &FS) :
32  LLVMTargetMachine(T, TT),
33  Subtarget(TT, FS),
34  // FIXME: Check TargetData string.
35  DataLayout("e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16"),
36  InstrInfo(*this), TLInfo(*this),
37  FrameInfo(TargetFrameInfo::StackGrowsDown, 2, -2) { }
38
39
40bool MSP430TargetMachine::addInstSelector(PassManagerBase &PM,
41                                          CodeGenOpt::Level OptLevel) {
42  // Install an instruction selector.
43  PM.add(createMSP430ISelDag(*this, OptLevel));
44  return false;
45}
46
47bool MSP430TargetMachine::addPreEmitPass(PassManagerBase &PM,
48                                         CodeGenOpt::Level OptLevel) {
49  // Must run branch selection immediately preceding the asm printer.
50  PM.add(createMSP430BranchSelectionPass());
51  return false;
52}
53