src/hotspot/cpu/x86/macroAssembler_x86.hpp

@@ -337,13 +337,24 @@
    void load_method_holder_cld(Register rresult, Register rmethod);
  
    void load_method_holder(Register holder, Register method);
  
    // oop manipulations
-   void load_klass(Register dst, Register src, Register tmp);
+   void load_klass(Register dst, Register src, Register tmp, bool null_check_src = false);
+ #ifdef _LP64
+   void load_nklass(Register dst, Register src);
+ #endif
    void store_klass(Register dst, Register src, Register tmp);
  
+   // Compares the Klass pointer of an object to a given Klass (which might be narrow,
+   // depending on UseCompressedClassPointers).
+   void cmp_klass(Register klass, Register dst, Register tmp);
+ 
+   // Compares the Klass pointer of two objects o1 and o2. Result is in the condition flags.
+   // Uses t1 and t2 as temporary registers.
+   void cmp_klass(Register src, Register dst, Register tmp1, Register tmp2);
+ 
    void access_load_at(BasicType type, DecoratorSet decorators, Register dst, Address src,
                        Register tmp1, Register thread_tmp);
    void access_store_at(BasicType type, DecoratorSet decorators, Address dst, Register src,
                         Register tmp1, Register tmp2);
  

@@ -1908,10 +1919,13 @@
  #endif // COMPILER2_OR_JVMCI
  
  #endif // _LP64
  
    void vallones(XMMRegister dst, int vector_len);
+ 
+   void fast_lock_impl(Register obj, Register hdr, Register thread, Register tmp, Label& slow);
+   void fast_unlock_impl(Register obj, Register hdr, Register tmp, Label& slow);
  };
  
  /**
   * class SkipIfEqual:
   *