1 //===-- SparcMCTargetDesc.cpp - Sparc Target Descriptions -----------------===// 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 Sparc specific target descriptions. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "SparcMCTargetDesc.h" 15 #include "SparcMCAsmInfo.h" 16 #include "llvm/MC/MCCodeGenInfo.h" 17 #include "llvm/MC/MCInstrInfo.h" 18 #include "llvm/MC/MCRegisterInfo.h" 19 #include "llvm/MC/MCSubtargetInfo.h" 20 #include "llvm/Support/ErrorHandling.h" 21 #include "llvm/Support/TargetRegistry.h" 22 23 #define GET_INSTRINFO_MC_DESC 24 #include "SparcGenInstrInfo.inc" 25 26 #define GET_SUBTARGETINFO_MC_DESC 27 #include "SparcGenSubtargetInfo.inc" 28 29 #define GET_REGINFO_MC_DESC 30 #include "SparcGenRegisterInfo.inc" 31 32 using namespace llvm; 33 34 static MCInstrInfo *createSparcMCInstrInfo() { 35 MCInstrInfo *X = new MCInstrInfo(); 36 InitSparcMCInstrInfo(X); 37 return X; 38 } 39 40 static MCRegisterInfo *createSparcMCRegisterInfo(StringRef TT) { 41 MCRegisterInfo *X = new MCRegisterInfo(); 42 InitSparcMCRegisterInfo(X, SP::I7); 43 return X; 44 } 45 46 static MCSubtargetInfo *createSparcMCSubtargetInfo(StringRef TT, StringRef CPU, 47 StringRef FS) { 48 MCSubtargetInfo *X = new MCSubtargetInfo(); 49 InitSparcMCSubtargetInfo(X, TT, CPU, FS); 50 return X; 51 } 52 53 // Code models. Some only make sense for 64-bit code. 54 // 55 // SunCC Reloc CodeModel Constraints 56 // abs32 Static Small text+data+bss linked below 2^32 bytes 57 // abs44 Static Medium text+data+bss linked below 2^44 bytes 58 // abs64 Static Large text smaller than 2^31 bytes 59 // pic13 PIC_ Small GOT < 2^13 bytes 60 // pic32 PIC_ Medium GOT < 2^32 bytes 61 // 62 // All code models require that the text segment is smaller than 2GB. 63 64 static MCCodeGenInfo *createSparcMCCodeGenInfo(StringRef TT, Reloc::Model RM, 65 CodeModel::Model CM, 66 CodeGenOpt::Level OL) { 67 MCCodeGenInfo *X = new MCCodeGenInfo(); 68 69 // The default 32-bit code model is abs32/pic32. 70 if (CM == CodeModel::Default) 71 CM = RM == Reloc::PIC_ ? CodeModel::Medium : CodeModel::Small; 72 73 X->InitMCCodeGenInfo(RM, CM, OL); 74 return X; 75 } 76 77 static MCCodeGenInfo *createSparcV9MCCodeGenInfo(StringRef TT, Reloc::Model RM, 78 CodeModel::Model CM, 79 CodeGenOpt::Level OL) { 80 MCCodeGenInfo *X = new MCCodeGenInfo(); 81 82 // The default 64-bit code model is abs44/pic32. 83 if (CM == CodeModel::Default) 84 CM = CodeModel::Medium; 85 86 X->InitMCCodeGenInfo(RM, CM, OL); 87 return X; 88 } 89 extern "C" void LLVMInitializeSparcTargetMC() { 90 // Register the MC asm info. 91 RegisterMCAsmInfo<SparcELFMCAsmInfo> X(TheSparcTarget); 92 RegisterMCAsmInfo<SparcELFMCAsmInfo> Y(TheSparcV9Target); 93 94 // Register the MC codegen info. 95 TargetRegistry::RegisterMCCodeGenInfo(TheSparcTarget, 96 createSparcMCCodeGenInfo); 97 TargetRegistry::RegisterMCCodeGenInfo(TheSparcV9Target, 98 createSparcV9MCCodeGenInfo); 99 100 // Register the MC instruction info. 101 TargetRegistry::RegisterMCInstrInfo(TheSparcTarget, createSparcMCInstrInfo); 102 103 // Register the MC register info. 104 TargetRegistry::RegisterMCRegInfo(TheSparcTarget, createSparcMCRegisterInfo); 105 106 // Register the MC subtarget info. 107 TargetRegistry::RegisterMCSubtargetInfo(TheSparcTarget, 108 createSparcMCSubtargetInfo); 109 } 110
