src/hotspot/cpu/aarch64/macroAssembler_aarch64.hpp

rev 49264 : 8193266: AArch64: TestOptionsWithRanges.java SIGSEGV
Reviewed-by: aph, dsamersoff

*** 77,96 ****
      bool     check_exceptions          // whether to check for pending exceptions after return
    );
  
    void call_VM_helper(Register oop_result, address entry_point, int number_of_arguments, bool check_exceptions = true);
  
!   // Maximum size of class area in Metaspace when compressed
!   uint64_t use_XOR_for_compressed_class_base;
  
   public:
    MacroAssembler(CodeBuffer* code) : Assembler(code) {
      use_XOR_for_compressed_class_base
        = (operand_valid_for_logical_immediate(false /*is32*/,
                                               (uint64_t)Universe::narrow_klass_base())
           && ((uint64_t)Universe::narrow_klass_base()
!              > (1u << log2_intptr(CompressedClassSpaceSize))));
    }
  
   // These routines should emit JVMTI PopFrame and ForceEarlyReturn handling code.
   // The implementation is only non-empty for the InterpreterMacroAssembler,
   // as only the interpreter handles PopFrame and ForceEarlyReturn requests.
--- 77,96 ----
      bool     check_exceptions          // whether to check for pending exceptions after return
    );
  
    void call_VM_helper(Register oop_result, address entry_point, int number_of_arguments, bool check_exceptions = true);
  
!   // True if an XOR can be used to expand narrow klass references.
!   bool use_XOR_for_compressed_class_base;
  
   public:
    MacroAssembler(CodeBuffer* code) : Assembler(code) {
      use_XOR_for_compressed_class_base
        = (operand_valid_for_logical_immediate(false /*is32*/,
                                               (uint64_t)Universe::narrow_klass_base())
           && ((uint64_t)Universe::narrow_klass_base()
!              > (1UL << log2_intptr(Universe::narrow_klass_range()))));
    }
  
   // These routines should emit JVMTI PopFrame and ForceEarlyReturn handling code.
   // The implementation is only non-empty for the InterpreterMacroAssembler,
   // as only the interpreter handles PopFrame and ForceEarlyReturn requests.