MSP430TargetMachine.cpp revision 5d77cad60bd82dfa2d00f78e26443d667922efbf 
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
23using 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.
30extern "C" int MSP430TargetMachineModule;
31int MSP430TargetMachineModule = 0;
32
33
34// Register the targets
35extern Target TheMSP430Target;
36static RegisterTarget<MSP430TargetMachine>
37X(TheMSP430Target, "msp430", "MSP430 [experimental]");
38
39// Force static initialization.
40extern "C" void LLVMInitializeMSP430Target() {
41  TargetRegistry::RegisterAsmPrinter(TheMSP430Target,
42                                     &createMSP430CodePrinterPass);
43}
44
45MSP430TargetMachine::MSP430TargetMachine(const Target &T,
46                                         const Module &M,
47                                         const std::string &FS) :
48  LLVMTargetMachine(T),
49  Subtarget(*this, M, FS),
50  // FIXME: Check TargetData string.
51  DataLayout("e-p:16:8:8-i8:8:8-i16:8:8-i32:8:8"),
52  InstrInfo(*this), TLInfo(*this),
53  FrameInfo(TargetFrameInfo::StackGrowsDown, 2, -2) { }
54
55const TargetAsmInfo *MSP430TargetMachine::createTargetAsmInfo() const {
56  return new MSP430TargetAsmInfo(*this);
57}
58
59bool MSP430TargetMachine::addInstSelector(PassManagerBase &PM,
60                                          CodeGenOpt::Level OptLevel) {
61  // Install an instruction selector.
62  PM.add(createMSP430ISelDag(*this, OptLevel));
63  return false;
64}
65
66