src/hotspot/cpu/aarch64/c1_MacroAssembler_aarch64.cpp

rev 53735 : AArch64 support for ValueTypes

*** 81,90 ****
--- 81,96 ----
  
    // Load object header
    ldr(hdr, Address(obj, hdr_offset));
    // and mark it as unlocked
    orr(hdr, hdr, markOopDesc::unlocked_value);
+ 
+   if (EnableValhalla && !UseBiasedLocking) {
+     // Mask always_locked bit such that we go to the slow path if object is a value type
+     andr(hdr, hdr, ~markOopDesc::biased_lock_bit_in_place);
+   }
+ 
    // save unlocked object header into the displaced header location on the stack
    str(hdr, Address(disp_hdr, 0));
    // test if object header is still the same (i.e. unlocked), and if so, store the
    // displaced header address in the object header - if it is not the same, get the
    // object header instead