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   TargetRegistry::RegisterAsmPrinter(TheMSP430Target,
  42                                      &createMSP430CodePrinterPass);
  43 }
  44
  45 MSP430TargetMachine::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
  55 const TargetAsmInfo *MSP430TargetMachine::createTargetAsmInfo() const {
  56   return new MSP430TargetAsmInfo(*this);
  57 }
  58
  59 bool MSP430TargetMachine::addInstSelector(PassManagerBase &PM,
  60                                           CodeGenOpt::Level OptLevel) {
  61   // Install an instruction selector.
  62   PM.add(createMSP430ISelDag(*this, OptLevel));
  63   return false;
  64 }
  65