lib/Target/CellSPU/SPUTargetMachine.cpp

   1 //===-- SPUTargetMachine.cpp - Define TargetMachine for Cell SPU ----------===//
   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 Cell SPU target.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "SPU.h"
  15 #include "SPURegisterNames.h"
  16 #include "SPUTargetAsmInfo.h"
  17 #include "SPUTargetMachine.h"
  18 #include "llvm/Module.h"
  19 #include "llvm/PassManager.h"
  20 #include "llvm/Target/TargetMachineRegistry.h"
  21 #include "llvm/CodeGen/RegAllocRegistry.h"
  22 #include "llvm/CodeGen/SchedulerRegistry.h"
  23
  24 using namespace llvm;
  25
  26 extern Target TheCellSPUTarget;
  27 namespace {
  28   // Register the targets
  29   RegisterTarget<SPUTargetMachine>
  30   CELLSPU(TheCellSPUTarget, "cellspu", "STI CBEA Cell SPU [experimental]");
  31 }
  32
  33 // Force static initialization.
  34 extern "C" void LLVMInitializeCellSPUTarget() { }
  35
  36 const std::pair<unsigned, int> *
  37 SPUFrameInfo::getCalleeSaveSpillSlots(unsigned &NumEntries) const {
  38   NumEntries = 1;
  39   return &LR[0];
  40 }
  41
  42 const TargetAsmInfo *
  43 SPUTargetMachine::createTargetAsmInfo() const
  44 {
  45   return new SPULinuxTargetAsmInfo(*this);
  46 }
  47
  48 SPUTargetMachine::SPUTargetMachine(const Target &T, const Module &M,
  49                                    const std::string &FS)
  50   : LLVMTargetMachine(T),
  51     Subtarget(*this, M, FS),
  52     DataLayout(Subtarget.getTargetDataString()),
  53     InstrInfo(*this),
  54     FrameInfo(*this),
  55     TLInfo(*this),
  56     InstrItins(Subtarget.getInstrItineraryData())
  57 {
  58   // For the time being, use static relocations, since there's really no
  59   // support for PIC yet.
  60   setRelocationModel(Reloc::Static);
  61 }
  62
  63 //===----------------------------------------------------------------------===//
  64 // Pass Pipeline Configuration
  65 //===----------------------------------------------------------------------===//
  66
  67 bool
  68 SPUTargetMachine::addInstSelector(PassManagerBase &PM,
  69                                   CodeGenOpt::Level OptLevel)
  70 {
  71   // Install an instruction selector.
  72   PM.add(createSPUISelDag(*this));
  73   return false;
  74 }
  75
  76 bool SPUTargetMachine::addAssemblyEmitter(PassManagerBase &PM,
  77                                           CodeGenOpt::Level OptLevel,
  78                                           bool Verbose,
  79                                           formatted_raw_ostream &Out) {
  80   FunctionPass *Printer = getTarget().createAsmPrinter(Out, *this, Verbose);
  81   if (!Printer)
  82     llvm_report_error("unable to create assembly printer");
  83   PM.add(Printer);
  84   return false;
  85 }