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 "MSP430TargetMachine.h"
  16 #include "llvm/PassManager.h"
  17 #include "llvm/CodeGen/Passes.h"
  18 #include "llvm/MC/MCAsmInfo.h"
  19 #include "llvm/Support/TargetRegistry.h"
  20 using namespace llvm;
  21
  22 extern "C" void LLVMInitializeMSP430Target() {
  23   // Register the target.
  24   RegisterTargetMachine<MSP430TargetMachine> X(TheMSP430Target);
  25 }
  26
  27 MSP430TargetMachine::MSP430TargetMachine(const Target &T,
  28                                          StringRef TT,
  29                                          StringRef CPU,
  30                                          StringRef FS,
  31                                          const TargetOptions &Options,
  32                                          Reloc::Model RM, CodeModel::Model CM,
  33                                          CodeGenOpt::Level OL)
  34   : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
  35     Subtarget(TT, CPU, FS),
  36     // FIXME: Check TargetData string.
  37     DataLayout("e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16"),
  38     InstrInfo(*this), TLInfo(*this), TSInfo(*this),
  39     FrameLowering(Subtarget) { }
  40
  41
  42 bool MSP430TargetMachine::addInstSelector(PassManagerBase &PM) {
  43   // Install an instruction selector.
  44   PM.add(createMSP430ISelDag(*this, getOptLevel()));
  45   return false;
  46 }
  47
  48 bool MSP430TargetMachine::addPreEmitPass(PassManagerBase &PM) {
  49   // Must run branch selection immediately preceding the asm printer.
  50   PM.add(createMSP430BranchSelectionPass());
  51   return false;
  52 }