src/cpu/x86/vm/c1_MacroAssembler_x86.cpp

*** 148,158 ****
  
  void C1_MacroAssembler::initialize_header(Register obj, Register klass, Register len, Register t1, Register t2) {
    assert_different_registers(obj, klass, len);
    if (UseBiasedLocking && !len->is_valid()) {
      assert_different_registers(obj, klass, len, t1, t2);
!     movptr(t1, Address(klass, Klass::prototype_header_offset_in_bytes() + klassOopDesc::klass_part_offset_in_bytes()));
      movptr(Address(obj, oopDesc::mark_offset_in_bytes()), t1);
    } else {
      // This assumes that all prototype bits fit in an int32_t
      movptr(Address(obj, oopDesc::mark_offset_in_bytes ()), (int32_t)(intptr_t)markOopDesc::prototype());
    }
--- 148,158 ----
  
  void C1_MacroAssembler::initialize_header(Register obj, Register klass, Register len, Register t1, Register t2) {
    assert_different_registers(obj, klass, len);
    if (UseBiasedLocking && !len->is_valid()) {
      assert_different_registers(obj, klass, len, t1, t2);
!     movptr(t1, Address(klass, Klass::prototype_header_offset_in_bytes()));
      movptr(Address(obj, oopDesc::mark_offset_in_bytes()), t1);
    } else {
      // This assumes that all prototype bits fit in an int32_t
      movptr(Address(obj, oopDesc::mark_offset_in_bytes ()), (int32_t)(intptr_t)markOopDesc::prototype());
    }