MSP430TargetMachine.cpp revision 226890 
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 "MSP430TargetMachine.h"
16#include "llvm/PassManager.h"
17#include "llvm/CodeGen/Passes.h"
18#include "llvm/MC/MCAsmInfo.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                                         Reloc::Model RM, CodeModel::Model CM)
32  : LLVMTargetMachine(T, TT, CPU, FS, RM, CM),
33    Subtarget(TT, CPU, 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), TSInfo(*this),
37    FrameLowering(Subtarget) { }
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