AArch64Subtarget.h revision 5a364c5561ec04e33a6f5d52c14f1bac6f247ea0 
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