26 #define CPU_X86_VM_STUBROUTINES_X86_64_HPP
  27 
  28 // This file holds the platform specific parts of the StubRoutines
  29 // definition. See stubRoutines.hpp for a description on how to
  30 // extend it.
  31 
  32 static bool    returns_to_call_stub(address return_pc)   { return return_pc == _call_stub_return_address; }
  33 
  34 enum platform_dependent_constants {
  35   code_size1 = 19000,          // simply increase if too small (assembler will crash if too small)
  36   code_size2 = 24000           // simply increase if too small (assembler will crash if too small)
  37 };
  38 
  39 class x86 {
  40  friend class StubGenerator;
  41 
  42  private:
  43   static address _get_previous_fp_entry;
  44   static address _get_previous_sp_entry;
  45 

  46   static address _f2i_fixup;
  47   static address _f2l_fixup;
  48   static address _d2i_fixup;
  49   static address _d2l_fixup;
  50 
  51   static address _float_sign_mask;
  52   static address _float_sign_flip;
  53   static address _double_sign_mask;
  54   static address _double_sign_flip;
  55 
  56  public:
  57 
  58   static address get_previous_fp_entry()
  59   {
  60     return _get_previous_fp_entry;
  61   }
  62 
  63   static address get_previous_sp_entry()
  64   {
  65     return _get_previous_sp_entry;





  66   }
  67 
  68   static address f2i_fixup()
  69   {
  70     return _f2i_fixup;
  71   }
  72 
  73   static address f2l_fixup()
  74   {
  75     return _f2l_fixup;
  76   }
  77 
  78   static address d2i_fixup()
  79   {
  80     return _d2i_fixup;
  81   }
  82 
  83   static address d2l_fixup()
  84   {
  85     return _d2l_fixup;

  26 #define CPU_X86_VM_STUBROUTINES_X86_64_HPP
  27 
  28 // This file holds the platform specific parts of the StubRoutines
  29 // definition. See stubRoutines.hpp for a description on how to
  30 // extend it.
  31 
  32 static bool    returns_to_call_stub(address return_pc)   { return return_pc == _call_stub_return_address; }
  33 
  34 enum platform_dependent_constants {
  35   code_size1 = 19000,          // simply increase if too small (assembler will crash if too small)
  36   code_size2 = 24000           // simply increase if too small (assembler will crash if too small)
  37 };
  38 
  39 class x86 {
  40  friend class StubGenerator;
  41 
  42  private:
  43   static address _get_previous_fp_entry;
  44   static address _get_previous_sp_entry;
  45 
  46   static address _shenandoah_wb;
  47   static address _f2i_fixup;
  48   static address _f2l_fixup;
  49   static address _d2i_fixup;
  50   static address _d2l_fixup;
  51 
  52   static address _float_sign_mask;
  53   static address _float_sign_flip;
  54   static address _double_sign_mask;
  55   static address _double_sign_flip;
  56 
  57  public:
  58 
  59   static address get_previous_fp_entry()
  60   {
  61     return _get_previous_fp_entry;
  62   }
  63 
  64   static address get_previous_sp_entry()
  65   {
  66     return _get_previous_sp_entry;
  67   }
  68 
  69   static address shenandoah_wb()
  70   {
  71     return _shenandoah_wb;
  72   }
  73 
  74   static address f2i_fixup()
  75   {
  76     return _f2i_fixup;
  77   }
  78 
  79   static address f2l_fixup()
  80   {
  81     return _f2l_fixup;
  82   }
  83 
  84   static address d2i_fixup()
  85   {
  86     return _d2i_fixup;
  87   }
  88 
  89   static address d2l_fixup()
  90   {
  91     return _d2l_fixup;