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 "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"
  21 using namespace llvm;
  22
  23 extern "C" void LLVMInitializeMSP430Target() {
  24   // Register the target.
  25   RegisterTargetMachine<MSP430TargetMachine> X(TheMSP430Target);
  26   RegisterAsmInfo<MSP430MCAsmInfo> Z(TheMSP430Target);
  27 }
  28
  29 MSP430TargetMachine::MSP430TargetMachine(const Target &T,
  30                                          const std::string &TT,
  31                                          const std::string &FS) :
  32   LLVMTargetMachine(T, TT),
  33   Subtarget(TT, 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   FrameInfo(TargetFrameInfo::StackGrowsDown, 2, -2) { }
  38
  39
  40 bool MSP430TargetMachine::addInstSelector(PassManagerBase &PM,
  41                                           CodeGenOpt::Level OptLevel) {
  42   // Install an instruction selector.
  43   PM.add(createMSP430ISelDag(*this, OptLevel));
  44   return false;
  45 }
  46
  47 bool 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 }