lib/Target/PIC16/PIC16TargetMachine.cpp

   1 //===-- PIC16TargetMachine.cpp - Define TargetMachine for PIC16 -----------===//
   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 PIC16 target.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "PIC16.h"
  15 #include "PIC16TargetAsmInfo.h"
  16 #include "PIC16TargetMachine.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 /// PIC16TargetMachineModule - 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 PIC16TargetMachineModule;
  31 int PIC16TargetMachineModule = 0;
  32
  33
  34 // Register the targets
  35 static RegisterTarget<PIC16TargetMachine>
  36 X("pic16", "PIC16 14-bit [experimental].");
  37 static RegisterTarget<CooperTargetMachine>
  38 Y("cooper", "PIC16 Cooper [experimental].");
  39
  40 // Force static initialization when called from llvm/InitializeAllTargets.h
  41 namespace llvm {
  42   void InitializePIC16Target() { }
  43 }
  44
  45 // PIC16TargetMachine - Traditional PIC16 Machine.
  46 PIC16TargetMachine::PIC16TargetMachine(const Module &M, const std::string &FS,
  47                                        bool Cooper)
  48 : Subtarget(M, FS, Cooper),
  49   DataLayout("e-p:16:8:8-i8:8:8-i16:8:8-i32:8:8"),
  50   InstrInfo(*this), TLInfo(*this),
  51   FrameInfo(TargetFrameInfo::StackGrowsUp, 8, 0) { }
  52
  53 // CooperTargetMachine - Uses the same PIC16TargetMachine, but makes IsCooper
  54 // as true.
  55 CooperTargetMachine::CooperTargetMachine(const Module &M, const std::string &FS)
  56   : PIC16TargetMachine(M, FS, true) {}
  57
  58
  59 const TargetAsmInfo *PIC16TargetMachine::createTargetAsmInfo() const {
  60   return new PIC16TargetAsmInfo(*this);
  61 }
  62
  63 bool PIC16TargetMachine::addInstSelector(PassManagerBase &PM,
  64                                          CodeGenOpt::Level OptLevel) {
  65   // Install an instruction selector.
  66   PM.add(createPIC16ISelDag(*this));
  67   return false;
  68 }
  69
  70 bool PIC16TargetMachine::
  71 addAssemblyEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
  72                    bool Verbose, raw_ostream &Out) {
  73   // Output assembly language.
  74   PM.add(createPIC16CodePrinterPass(Out, *this, OptLevel, Verbose));
  75   return false;
  76 }
  77
  78 bool PIC16TargetMachine::addPostRegAlloc(PassManagerBase &PM,
  79                                          CodeGenOpt::Level OptLevel) {
  80   PM.add(createPIC16MemSelOptimizerPass());
  81   return true;  // -print-machineinstr should print after this.
  82 }
  83
  84