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 unsigned GRLen = 32; 48 MVT GRLenVT = MVT::i32; 49 LoongArchABI::ABI TargetABI = LoongArchABI::ABI_Unknown; 50 LoongArchFrameLowering FrameLowering; 51 LoongArchInstrInfo InstrInfo; 52 LoongArchRegisterInfo RegInfo; 53 LoongArchTargetLowering TLInfo; 54 SelectionDAGTargetInfo TSInfo; 55 56 Align PrefFunctionAlignment; 57 Align PrefLoopAlignment; 58 unsigned MaxBytesForAlignment; 59 60 /// Initializes using the passed in CPU and feature strings so that we can 61 /// use initializer lists for subtarget initialization. 62 LoongArchSubtarget &initializeSubtargetDependencies(const Triple &TT, 63 StringRef CPU, 64 StringRef TuneCPU, 65 StringRef FS, 66 StringRef ABIName); 67 68 /// Initialize properties based on the selected processor family. 69 void initializeProperties(StringRef TuneCPU); 70 71 public: 72 // Initializes the data members to match that of the specified triple. 73 LoongArchSubtarget(const Triple &TT, StringRef CPU, StringRef TuneCPU, 74 StringRef FS, StringRef ABIName, const TargetMachine &TM); 75 76 // Parses features string setting specified subtarget options. The 77 // definition of this function is auto-generated by tblgen. 78 void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS); 79 80 const LoongArchFrameLowering *getFrameLowering() const override { 81 return &FrameLowering; 82 } 83 const LoongArchInstrInfo *getInstrInfo() const override { return &InstrInfo; } 84 const LoongArchRegisterInfo *getRegisterInfo() const override { 85 return &RegInfo; 86 } 87 const LoongArchTargetLowering *getTargetLowering() const override { 88 return &TLInfo; 89 } 90 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override { 91 return &TSInfo; 92 } 93 bool is64Bit() const { return HasLA64; } 94 bool hasBasicF() const { return HasBasicF; } 95 bool hasBasicD() const { return HasBasicD; } 96 bool hasExtLSX() const { return HasExtLSX; } 97 bool hasExtLASX() const { return HasExtLASX; } 98 bool hasExtLVZ() const { return HasExtLVZ; } 99 bool hasExtLBT() const { return HasExtLBT; } 100 bool hasLaGlobalWithPcrel() const { return HasLaGlobalWithPcrel; } 101 bool hasLaGlobalWithAbs() const { return HasLaGlobalWithAbs; } 102 bool hasLaLocalWithAbs() const { return HasLaLocalWithAbs; } 103 bool hasUAL() const { return HasUAL; } 104 bool hasLinkerRelax() const { return HasLinkerRelax; } 105 MVT getGRLenVT() const { return GRLenVT; } 106 unsigned getGRLen() const { return GRLen; } 107 LoongArchABI::ABI getTargetABI() const { return TargetABI; } 108 bool isXRaySupported() const override { return is64Bit(); } 109 Align getPrefFunctionAlignment() const { return PrefFunctionAlignment; } 110 Align getPrefLoopAlignment() const { return PrefLoopAlignment; } 111 unsigned getMaxBytesForAlignment() const { return MaxBytesForAlignment; } 112 }; 113 } // end namespace llvm 114 115 #endif // LLVM_LIB_TARGET_LOONGARCH_LOONGARCHSUBTARGET_H 116