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