AArch64Subtarget.h revision 354362524a72b3fa43a6c09380b7ae3b2380cbba
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 25namespace llvm { 26class StringRef; 27class GlobalValue; 28 29class AArch64Subtarget : public AArch64GenSubtargetInfo { 30 virtual void anchor(); 31protected: 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 42private: 43 void initializeSubtargetFeatures(StringRef CPU, StringRef FS); 44 45public: 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