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 TargetSubtarget.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_TARGET_SystemZ_SUBTARGET_H
15 #define LLVM_TARGET_SystemZ_SUBTARGET_H
16 
17 #include "llvm/Target/TargetSubtarget.h"
18 
19 #include <string>
20 
21 namespace llvm {
22 class GlobalValue;
23 class TargetMachine;
24 
25 class SystemZSubtarget : public TargetSubtarget {
26   bool HasZ10Insts;
27 public:
28   /// This constructor initializes the data members to match that
29   /// of the specified triple.
30   ///
31   SystemZSubtarget(const std::string &TT, const std::string &FS);
32 
33   /// ParseSubtargetFeatures - Parses features string setting specified
34   /// subtarget options.  Definition of function is auto generated by tblgen.
35   std::string ParseSubtargetFeatures(const std::string &FS,
36                                      const std::string &CPU);
37 
38   bool isZ10() const { return HasZ10Insts; }
39 
40   bool GVRequiresExtraLoad(const GlobalValue* GV, const TargetMachine& TM,
41                            bool isDirectCall) const;
42 };
43 } // End llvm namespace
44 
45 #endif  // LLVM_TARGET_SystemZ_SUBTARGET_H
46