lib/Target/SystemZ/SystemZSubtarget.h

   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