SystemZSubtarget.h revision f3068d02e5f55d7e69134c8f14aa21c4b9fde91a 
1//===-- SystemZSubtarget.h - SystemZ subtarget information -----*- 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 SystemZ specific subclass of TargetSubtargetInfo.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef SYSTEMZSUBTARGET_H
15#define SYSTEMZSUBTARGET_H
16
17#include "llvm/ADT/Triple.h"
18#include "llvm/Target/TargetSubtargetInfo.h"
19#include <string>
20
21#define GET_SUBTARGETINFO_HEADER
22#include "SystemZGenSubtargetInfo.inc"
23
24namespace llvm {
25class GlobalValue;
26class StringRef;
27
28class SystemZSubtarget : public SystemZGenSubtargetInfo {
29protected:
30  bool HasDistinctOps;
31  bool HasLoadStoreOnCond;
32  bool HasHighWord;
33
34private:
35  Triple TargetTriple;
36
37public:
38  SystemZSubtarget(const std::string &TT, const std::string &CPU,
39                   const std::string &FS);
40
41  // Automatically generated by tblgen.
42  void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
43
44  // Return true if the target has the distinct-operands facility.
45  bool hasDistinctOps() const { return HasDistinctOps; }
46
47  // Return true if the target has the load/store-on-condition facility.
48  bool hasLoadStoreOnCond() const { return HasLoadStoreOnCond; }
49
50  // Return true if the target has the high-word facility.
51  bool hasHighWord() const { return HasHighWord; }
52
53  // Return true if GV can be accessed using LARL for reloc model RM
54  // and code model CM.
55  bool isPC32DBLSymbol(const GlobalValue *GV, Reloc::Model RM,
56                       CodeModel::Model CM) const;
57
58  bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); }
59};
60} // end namespace llvm
61
62#endif
63