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 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
  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