src/hotspot/cpu/s390/macroAssembler_s390.hpp

rev 52430 : 8213199: GC abstraction for Assembler::needs_explicit_null_check()

*** 777,786 ****
--- 777,787 ----
    //
    // %%%%%% Currently not done for z/Architecture
  
    void null_check(Register reg, Register tmp = Z_R0, int64_t offset = -1);
    static bool needs_explicit_null_check(intptr_t offset);  // Implemented in shared file ?!
+   static bool uses_implicit_null_check(void* address);
  
    // Klass oop manipulations if compressed.
    void encode_klass_not_null(Register dst, Register src = noreg);
    void decode_klass_not_null(Register dst, Register src);
    void decode_klass_not_null(Register dst);