1 //===- LoongArchSubtarget.h - Define Subtarget for the LoongArch -*- C++ -*-==// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file declares the LoongArch specific subclass of TargetSubtargetInfo. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_LIB_TARGET_LOONGARCH_LOONGARCHSUBTARGET_H 14 #define LLVM_LIB_TARGET_LOONGARCH_LOONGARCHSUBTARGET_H 15 16 #include "LoongArchFrameLowering.h" 17 #include "LoongArchISelLowering.h" 18 #include "LoongArchInstrInfo.h" 19 #include "LoongArchRegisterInfo.h" 20 #include "MCTargetDesc/LoongArchBaseInfo.h" 21 #include "llvm/CodeGen/SelectionDAGTargetInfo.h" 22 #include "llvm/CodeGen/TargetSubtargetInfo.h" 23 #include "llvm/IR/DataLayout.h" 24 #include "llvm/Target/TargetMachine.h" 25 26 #define GET_SUBTARGETINFO_HEADER 27 #include "LoongArchGenSubtargetInfo.inc" 28 29 namespace llvm { 30 class StringRef; 31 32 class LoongArchSubtarget : public LoongArchGenSubtargetInfo { 33 virtual void anchor(); 34 bool HasLA32 = false; 35 bool HasLA64 = false; 36 bool HasBasicF = false; 37 bool HasBasicD = false; 38 bool HasExtLSX = false; 39 bool HasExtLASX = false; 40 bool HasExtLVZ = false; 41 bool HasExtLBT = false; 42 bool HasLaGlobalWithPcrel = false; 43 bool HasLaGlobalWithAbs = false; 44 bool HasLaLocalWithAbs = false; 45 bool HasUAL = false; 46 bool HasLinkerRelax = false; 47 bool HasExpAutoVec = false; 48 bool HasFrecipe = false; 49 unsigned GRLen = 32; 50 MVT GRLenVT = MVT::i32; 51 LoongArchABI::ABI TargetABI = LoongArchABI::ABI_Unknown; 52 LoongArchFrameLowering FrameLowering; 53 LoongArchInstrInfo InstrInfo; 54 LoongArchRegisterInfo RegInfo; 55 LoongArchTargetLowering TLInfo; 56 SelectionDAGTargetInfo TSInfo; 57 58 Align PrefFunctionAlignment; 59 Align PrefLoopAlignment; 60 unsigned MaxBytesForAlignment; 61 62 /// Initializes using the passed in CPU and feature strings so that we can 63 /// use initializer lists for subtarget initialization. 64 LoongArchSubtarget &initializeSubtargetDependencies(const Triple &TT, 65 StringRef CPU, 66 StringRef TuneCPU, 67 StringRef FS, 68 StringRef ABIName); 69 70 /// Initialize properties based on the selected processor family. 71 void initializeProperties(StringRef TuneCPU); 72 73 public: 74 // Initializes the data members to match that of the specified triple. 75 LoongArchSubtarget(const Triple &TT, StringRef CPU, StringRef TuneCPU, 76 StringRef FS, StringRef ABIName, const TargetMachine &TM); 77 78 // Parses features string setting specified subtarget options. The 79 // definition of this function is auto-generated by tblgen. 80 void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS); 81 82 const LoongArchFrameLowering *getFrameLowering() const override { 83 return &FrameLowering; 84 } 85 const LoongArchInstrInfo *getInstrInfo() const override { return &InstrInfo; } 86 const LoongArchRegisterInfo *getRegisterInfo() const override { 87 return &RegInfo; 88 } 89 const LoongArchTargetLowering *getTargetLowering() const override { 90 return &TLInfo; 91 } 92 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override { 93 return &TSInfo; 94 } 95 bool is64Bit() const { return HasLA64; } 96 bool hasBasicF() const { return HasBasicF; } 97 bool hasBasicD() const { return HasBasicD; } 98 bool hasExtLSX() const { return HasExtLSX; } 99 bool hasExtLASX() const { return HasExtLASX; } 100 bool hasExtLVZ() const { return HasExtLVZ; } 101 bool hasExtLBT() const { return HasExtLBT; } 102 bool hasLaGlobalWithPcrel() const { return HasLaGlobalWithPcrel; } 103 bool hasLaGlobalWithAbs() const { return HasLaGlobalWithAbs; } 104 bool hasLaLocalWithAbs() const { return HasLaLocalWithAbs; } 105 bool hasUAL() const { return HasUAL; } 106 bool hasLinkerRelax() const { return HasLinkerRelax; } 107 bool hasExpAutoVec() const { return HasExpAutoVec; } 108 bool hasFrecipe() const { return HasFrecipe; } 109 MVT getGRLenVT() const { return GRLenVT; } 110 unsigned getGRLen() const { return GRLen; } 111 LoongArchABI::ABI getTargetABI() const { return TargetABI; } 112 bool isXRaySupported() const override { return is64Bit(); } 113 Align getPrefFunctionAlignment() const { return PrefFunctionAlignment; } 114 Align getPrefLoopAlignment() const { return PrefLoopAlignment; } 115 unsigned getMaxBytesForAlignment() const { return MaxBytesForAlignment; } 116 }; 117 } // end namespace llvm 118 119 #endif // LLVM_LIB_TARGET_LOONGARCH_LOONGARCHSUBTARGET_H 120