1 //==-- AArch64Subtarget.h - Define Subtarget for the AArch64 ---*- 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 declares the AArch64 specific subclass of TargetSubtargetInfo. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_TARGET_AARCH64_SUBTARGET_H 15 #define LLVM_TARGET_AARCH64_SUBTARGET_H 16 17 #include "llvm/ADT/Triple.h" 18 #include "llvm/Target/TargetSubtargetInfo.h" 19 20 #define GET_SUBTARGETINFO_HEADER 21 #include "AArch64GenSubtargetInfo.inc" 22 23 #include <string> 24 25 namespace llvm { 26 class StringRef; 27 class GlobalValue; 28 29 class AArch64Subtarget : public AArch64GenSubtargetInfo { 30 virtual void anchor(); 31 protected: 32 bool HasFPARMv8; 33 bool HasNEON; 34 bool HasCrypto; 35 36 /// TargetTriple - What processor and OS we're targeting. 37 Triple TargetTriple; 38 39 /// CPUString - String name of used CPU. 40 std::string CPUString; 41 42 private: 43 void initializeSubtargetFeatures(StringRef CPU, StringRef FS); 44 45 public: 46 /// This constructor initializes the data members to match that 47 /// of the specified triple. 48 /// 49 AArch64Subtarget(StringRef TT, StringRef CPU, StringRef FS); 50 51 virtual bool enableMachineScheduler() const { 52 return true; 53 } 54 55 /// ParseSubtargetFeatures - Parses features string setting specified 56 /// subtarget options. Definition of function is auto generated by tblgen. 57 void ParseSubtargetFeatures(StringRef CPU, StringRef FS); 58 59 bool GVIsIndirectSymbol(const GlobalValue *GV, Reloc::Model RelocM) const; 60 61 bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); } 62 bool isTargetLinux() const { return TargetTriple.isOSLinux(); } 63 64 bool hasFPARMv8() const { return HasFPARMv8; } 65 bool hasNEON() const { return HasNEON; } 66 bool hasCrypto() const { return HasCrypto; } 67 68 const std::string & getCPUString() const { return CPUString; } 69 }; 70 } // End llvm namespace 71 72 #endif // LLVM_TARGET_AARCH64_SUBTARGET_H 73