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