MSP430TargetMachine.cpp revision 276365dd4bc0c2160f91fd8062ae1fc90c86c324 
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 &CPU,
32                                         const std::string &FS)
33  : LLVMTargetMachine(T, TT),
34    Subtarget(TT, CPU, FS),
35    // FIXME: Check TargetData string.
36    DataLayout("e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16"),
37    InstrInfo(*this), TLInfo(*this), TSInfo(*this),
38    FrameLowering(Subtarget) { }
39
40
41bool MSP430TargetMachine::addInstSelector(PassManagerBase &PM,
42                                          CodeGenOpt::Level OptLevel) {
43  // Install an instruction selector.
44  PM.add(createMSP430ISelDag(*this, OptLevel));
45  return false;
46}
47
48bool MSP430TargetMachine::addPreEmitPass(PassManagerBase &PM,
49                                         CodeGenOpt::Level OptLevel) {
50  // Must run branch selection immediately preceding the asm printer.
51  PM.add(createMSP430BranchSelectionPass());
52  return false;
53}
54