Provide TargetMachine implementations with reference to Target they were created
[oota-llvm.git] / lib / Target / MSP430 / MSP430TargetMachine.cpp
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
23 using 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.
30 extern "C" int MSP430TargetMachineModule;
31 int MSP430TargetMachineModule = 0;
32
33
34 // Register the targets
35 extern Target TheMSP430Target;
36 static RegisterTarget<MSP430TargetMachine>
37 X(TheMSP430Target, "msp430", "MSP430 [experimental]");
38
39 // Force static initialization.
40 extern "C" void LLVMInitializeMSP430Target() { }
41
42 MSP430TargetMachine::MSP430TargetMachine(const Target &T,
43                                          const Module &M,
44                                          const std::string &FS) :
45   LLVMTargetMachine(T),
46   Subtarget(*this, M, FS),
47   // FIXME: Check TargetData string.
48   DataLayout("e-p:16:8:8-i8:8:8-i16:8:8-i32:8:8"),
49   InstrInfo(*this), TLInfo(*this),
50   FrameInfo(TargetFrameInfo::StackGrowsDown, 2, -2) { }
51
52 const TargetAsmInfo *MSP430TargetMachine::createTargetAsmInfo() const {
53   return new MSP430TargetAsmInfo(*this);
54 }
55
56 bool MSP430TargetMachine::addInstSelector(PassManagerBase &PM,
57                                           CodeGenOpt::Level OptLevel) {
58   // Install an instruction selector.
59   PM.add(createMSP430ISelDag(*this, OptLevel));
60   return false;
61 }
62
63 bool MSP430TargetMachine::addAssemblyEmitter(PassManagerBase &PM,
64                                              CodeGenOpt::Level OptLevel,
65                                              bool Verbose,
66                                              formatted_raw_ostream &Out) {
67   // Output assembly language.
68   PM.add(createMSP430CodePrinterPass(Out, *this, Verbose));
69   return false;
70 }
71
72 unsigned MSP430TargetMachine::getModuleMatchQuality(const Module &M) {
73   std::string TT = M.getTargetTriple();
74
75   // We strongly match msp430
76   if (TT.size() >= 6 && TT[0] == 'm' && TT[1] == 's' && TT[2] == 'p' &&
77       TT[3] == '4' &&  TT[4] == '3' && TT[5] == '0')
78     return 20;
79
80   return 0;
81 }
82