src/cpu/x86/vm/c1_Runtime1_x86.cpp

*** 1038,1048 ****
            // get the instance size (size is postive so movl is fine for 64bit)
            __ movl(obj_size, Address(klass, Klass::layout_helper_offset()));
  
            __ tlab_allocate(obj, obj_size, 0, t1, t2, slow_path);
  
!           __ initialize_object(obj, klass, obj_size, 0, t1, t2);
            __ verify_oop(obj);
            __ pop(rbx);
            __ pop(rdi);
            __ ret(0);
  
--- 1038,1048 ----
            // get the instance size (size is postive so movl is fine for 64bit)
            __ movl(obj_size, Address(klass, Klass::layout_helper_offset()));
  
            __ tlab_allocate(obj, obj_size, 0, t1, t2, slow_path);
  
!           __ initialize_object(obj, klass, obj_size, 0, t1, t2, /* is_tlab_allocated */ true);
            __ verify_oop(obj);
            __ pop(rbx);
            __ pop(rdi);
            __ ret(0);
  
*** 1051,1061 ****
            __ movl(obj_size, Address(klass, Klass::layout_helper_offset()));
  
            __ eden_allocate(obj, obj_size, 0, t1, slow_path);
            __ incr_allocated_bytes(thread, obj_size, 0);
  
!           __ initialize_object(obj, klass, obj_size, 0, t1, t2);
            __ verify_oop(obj);
            __ pop(rbx);
            __ pop(rdi);
            __ ret(0);
  
--- 1051,1061 ----
            __ movl(obj_size, Address(klass, Klass::layout_helper_offset()));
  
            __ eden_allocate(obj, obj_size, 0, t1, slow_path);
            __ incr_allocated_bytes(thread, obj_size, 0);
  
!           __ initialize_object(obj, klass, obj_size, 0, t1, t2, /* is_tlab_allocated */ false);
            __ verify_oop(obj);
            __ pop(rbx);
            __ pop(rdi);
            __ ret(0);
  
*** 1167,1177 ****
--- 1167,1179 ----
            assert(Klass::_lh_header_size_shift % BitsPerByte == 0, "bytewise");
            assert(Klass::_lh_header_size_mask <= 0xFF, "bytewise");
            __ andptr(t1, Klass::_lh_header_size_mask);
            __ subptr(arr_size, t1);  // body length
            __ addptr(t1, obj);       // body start
+           if (!ZeroTLAB) {
              __ initialize_body(t1, arr_size, 0, t2);
+           }
            __ verify_oop(obj);
            __ ret(0);
  
            __ bind(try_eden);
            // get the allocation size: round_up(hdr + length << (layout_helper & 0x1F))