lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.cpp

   1 //===-- HexagonMCTargetDesc.cpp - Cell Hexagon 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 Hexagon specific target descriptions.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "HexagonMCTargetDesc.h"
  15 #include "HexagonMCAsmInfo.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 "HexagonGenInstrInfo.inc"
  25
  26 #define GET_SUBTARGETINFO_MC_DESC
  27 #include "HexagonGenSubtargetInfo.inc"
  28
  29 #define GET_REGINFO_MC_DESC
  30 #include "HexagonGenRegisterInfo.inc"
  31
  32 using namespace llvm;
  33
  34 static MCInstrInfo *createHexagonMCInstrInfo() {
  35   MCInstrInfo *X = new MCInstrInfo();
  36   InitHexagonMCInstrInfo(X);
  37   return X;
  38 }
  39
  40 static MCRegisterInfo *createHexagonMCRegisterInfo(StringRef TT) {
  41   MCRegisterInfo *X = new MCRegisterInfo();
  42   InitHexagonMCRegisterInfo(X, Hexagon::R0);
  43   return X;
  44 }
  45
  46 static MCSubtargetInfo *createHexagonMCSubtargetInfo(StringRef TT,
  47                                                      StringRef CPU,
  48                                                      StringRef FS) {
  49   MCSubtargetInfo *X = new MCSubtargetInfo();
  50   InitHexagonMCSubtargetInfo(X, TT, CPU, FS);
  51   return X;
  52 }
  53
  54 static MCAsmInfo *createHexagonMCAsmInfo(const Target &T, StringRef TT) {
  55   MCAsmInfo *MAI = new HexagonMCAsmInfo(T, TT);
  56
  57   // VirtualFP = (R30 + #0).
  58   MachineLocation Dst(MachineLocation::VirtualFP);
  59   MachineLocation Src(Hexagon::R30, 0);
  60   MAI->addInitialFrameState(0, Dst, Src);
  61
  62   return MAI;
  63 }
  64
  65 static MCCodeGenInfo *createHexagonMCCodeGenInfo(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 LLVMInitializeHexagonTargetMC() {
  77   // Register the MC asm info.
  78   RegisterMCAsmInfoFn X(TheHexagonTarget, createHexagonMCAsmInfo);
  79
  80   // Register the MC codegen info.
  81   TargetRegistry::RegisterMCCodeGenInfo(TheHexagonTarget,
  82                                         createHexagonMCCodeGenInfo);
  83
  84   // Register the MC instruction info.
  85   TargetRegistry::RegisterMCInstrInfo(TheHexagonTarget, createHexagonMCInstrInfo);
  86
  87   // Register the MC register info.
  88   TargetRegistry::RegisterMCRegInfo(TheHexagonTarget,
  89                                     createHexagonMCRegisterInfo);
  90
  91   // Register the MC subtarget info.
  92   TargetRegistry::RegisterMCSubtargetInfo(TheHexagonTarget,
  93                                           createHexagonMCSubtargetInfo);
  94 }