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1 //==-- SystemZSubtarget.h - Define Subtarget for the SystemZ ---*- 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 LLVM_TARGET_SystemZ_SUBTARGET_H
15 #define LLVM_TARGET_SystemZ_SUBTARGET_H
16 
17 #include "llvm/Target/TargetSubtargetInfo.h"
18 #include <string>
19 
20 #define GET_SUBTARGETINFO_HEADER
21 #include "SystemZGenSubtargetInfo.inc"
22 
23 namespace llvm {
24 class GlobalValue;
25 class StringRef;
26 class TargetMachine;
27 
28 class SystemZSubtarget : public SystemZGenSubtargetInfo {
29   bool HasZ10Insts;
30 public:
31   /// This constructor initializes the data members to match that
32   /// of the specified triple.
33   ///
34   SystemZSubtarget(const std::string &TT, const std::string &CPU,
35                    const std::string &FS);
36 
37   /// ParseSubtargetFeatures - Parses features string setting specified
38   /// subtarget options.  Definition of function is auto generated by tblgen.
39   void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
40 
isZ10()41   bool isZ10() const { return HasZ10Insts; }
42 
43   bool GVRequiresExtraLoad(const GlobalValue* GV, const TargetMachine& TM,
44                            bool isDirectCall) const;
45 };
46 } // End llvm namespace
47 
48 #endif  // LLVM_TARGET_SystemZ_SUBTARGET_H
49