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 // No assembler printer by default
  34 SPUTargetMachine::AsmPrinterCtorFn SPUTargetMachine::AsmPrinterCtor = 0;
  35
  36 // Force static initialization.
  37 extern "C" void LLVMInitializeCellSPUTarget() { }
  38
  39 const std::pair<unsigned, int> *
  40 SPUFrameInfo::getCalleeSaveSpillSlots(unsigned &NumEntries) const {
  41   NumEntries = 1;
  42   return &LR[0];
  43 }
  44
  45 const TargetAsmInfo *
  46 SPUTargetMachine::createTargetAsmInfo() const
  47 {
  48   return new SPULinuxTargetAsmInfo(*this);
  49 }
  50
  51 SPUTargetMachine::SPUTargetMachine(const Target &T, const Module &M,
  52                                    const std::string &FS)
  53   : LLVMTargetMachine(T),
  54     Subtarget(*this, M, FS),
  55     DataLayout(Subtarget.getTargetDataString()),
  56     InstrInfo(*this),
  57     FrameInfo(*this),
  58     TLInfo(*this),
  59     InstrItins(Subtarget.getInstrItineraryData())
  60 {
  61   // For the time being, use static relocations, since there's really no
  62   // support for PIC yet.
  63   setRelocationModel(Reloc::Static);
  64 }
  65
  66 //===----------------------------------------------------------------------===//
  67 // Pass Pipeline Configuration
  68 //===----------------------------------------------------------------------===//
  69
  70 bool
  71 SPUTargetMachine::addInstSelector(PassManagerBase &PM,
  72                                   CodeGenOpt::Level OptLevel)
  73 {
  74   // Install an instruction selector.
  75   PM.add(createSPUISelDag(*this));
  76   return false;
  77 }
  78
  79 bool SPUTargetMachine::addAssemblyEmitter(PassManagerBase &PM,
  80                                           CodeGenOpt::Level OptLevel,
  81                                           bool Verbose,
  82                                           formatted_raw_ostream &Out) {
  83   // Output assembly language.
  84   assert(AsmPrinterCtor && "AsmPrinter was not linked in");
  85   if (AsmPrinterCtor)
  86     PM.add(AsmPrinterCtor(Out, *this, Verbose));
  87   return false;
  88 }