lib/Target/CellSPU/MCTargetDesc/SPUMCTargetDesc.cpp

   1 //===-- SPUMCTargetDesc.cpp - Cell SPU Target Descriptions -----*- C++ -*-===//
   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 // This file provides Cell SPU specific target descriptions.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "SPUMCTargetDesc.h"
  15 #include "SPUMCAsmInfo.h"
  16 #include "llvm/MC/MachineLocation.h"
  17 #include "llvm/MC/MCCodeGenInfo.h"
  18 #include "llvm/MC/MCInstrInfo.h"
  19 #include "llvm/MC/MCRegisterInfo.h"
  20 #include "llvm/MC/MCSubtargetInfo.h"
  21 #include "llvm/Support/ErrorHandling.h"
  22 #include "llvm/Support/TargetRegistry.h"
  23
  24 #define GET_INSTRINFO_MC_DESC
  25 #include "SPUGenInstrInfo.inc"
  26
  27 #define GET_SUBTARGETINFO_MC_DESC
  28 #include "SPUGenSubtargetInfo.inc"
  29
  30 #define GET_REGINFO_MC_DESC
  31 #include "SPUGenRegisterInfo.inc"
  32
  33 using namespace llvm;
  34
  35 static MCInstrInfo *createSPUMCInstrInfo() {
  36   MCInstrInfo *X = new MCInstrInfo();
  37   InitSPUMCInstrInfo(X);
  38   return X;
  39 }
  40
  41 static MCRegisterInfo *createCellSPUMCRegisterInfo(StringRef TT) {
  42   MCRegisterInfo *X = new MCRegisterInfo();
  43   InitSPUMCRegisterInfo(X, SPU::R0);
  44   return X;
  45 }
  46
  47 static MCSubtargetInfo *createSPUMCSubtargetInfo(StringRef TT, StringRef CPU,
  48                                                  StringRef FS) {
  49   MCSubtargetInfo *X = new MCSubtargetInfo();
  50   InitSPUMCSubtargetInfo(X, TT, CPU, FS);
  51   return X;
  52 }
  53
  54 static MCAsmInfo *createSPUMCAsmInfo(const Target &T, StringRef TT) {
  55   MCAsmInfo *MAI = new SPULinuxMCAsmInfo(T, TT);
  56
  57   // Initial state of the frame pointer is R1.
  58   MachineLocation Dst(MachineLocation::VirtualFP);
  59   MachineLocation Src(SPU::R1, 0);
  60   MAI->addInitialFrameState(0, Dst, Src);
  61
  62   return MAI;
  63 }
  64
  65 static MCCodeGenInfo *createSPUMCCodeGenInfo(StringRef TT, Reloc::Model RM,
  66                                              CodeModel::Model CM,
  67                                              CodeGenOpt::Level OL) {
  68   MCCodeGenInfo *X = new MCCodeGenInfo();
  69   // For the time being, use static relocations, since there's really no
  70   // support for PIC yet.
  71   X->InitMCCodeGenInfo(Reloc::Static, CM, OL);
  72   return X;
  73 }
  74
  75 // Force static initialization.
  76 extern "C" void LLVMInitializeCellSPUTargetMC() {
  77   // Register the MC asm info.
  78   RegisterMCAsmInfoFn X(TheCellSPUTarget, createSPUMCAsmInfo);
  79
  80   // Register the MC codegen info.
  81   TargetRegistry::RegisterMCCodeGenInfo(TheCellSPUTarget,
  82                                         createSPUMCCodeGenInfo);
  83
  84   // Register the MC instruction info.
  85   TargetRegistry::RegisterMCInstrInfo(TheCellSPUTarget, createSPUMCInstrInfo);
  86
  87   // Register the MC register info.
  88   TargetRegistry::RegisterMCRegInfo(TheCellSPUTarget,
  89                                     createCellSPUMCRegisterInfo);
  90
  91   // Register the MC subtarget info.
  92   TargetRegistry::RegisterMCSubtargetInfo(TheCellSPUTarget,
  93                                           createSPUMCSubtargetInfo);
  94 }