src/hotspot/cpu/x86/macroAssembler_x86.cpp

rev 48562 : [mq]: heap23

*** 5583,5593 ****
    if (var_size_in_bytes == noreg) {
      lea(end, Address(obj, con_size_in_bytes));
    } else {
      lea(end, Address(obj, var_size_in_bytes, Address::times_1));
    }
!   cmpptr(end, Address(thread, JavaThread::tlab_end_offset()));
    jcc(Assembler::above, slow_case);
  
    // update the tlab top pointer
    movptr(Address(thread, JavaThread::tlab_top_offset()), end);
  
--- 5583,5593 ----
    if (var_size_in_bytes == noreg) {
      lea(end, Address(obj, con_size_in_bytes));
    } else {
      lea(end, Address(obj, var_size_in_bytes, Address::times_1));
    }
!   cmpptr(end, Address(thread, JavaThread::tlab_current_end_offset()));
    jcc(Assembler::above, slow_case);
  
    // update the tlab top pointer
    movptr(Address(thread, JavaThread::tlab_top_offset()), end);
  
*** 5615,5625 ****
    }
  
    NOT_LP64(get_thread(thread_reg));
  
    movptr(top, Address(thread_reg, in_bytes(JavaThread::tlab_top_offset())));
!   movptr(t1,  Address(thread_reg, in_bytes(JavaThread::tlab_end_offset())));
  
    // calculate amount of free space
    subptr(t1, top);
    shrptr(t1, LogHeapWordSize);
  
--- 5615,5625 ----
    }
  
    NOT_LP64(get_thread(thread_reg));
  
    movptr(top, Address(thread_reg, in_bytes(JavaThread::tlab_top_offset())));
!   movptr(t1,  Address(thread_reg, in_bytes(JavaThread::tlab_current_end_offset())));
  
    // calculate amount of free space
    subptr(t1, top);
    shrptr(t1, LogHeapWordSize);
  
*** 5696,5706 ****
  #endif
    movptr(Address(thread_reg, in_bytes(JavaThread::tlab_start_offset())), top);
    movptr(Address(thread_reg, in_bytes(JavaThread::tlab_top_offset())), top);
    addptr(top, t1);
    subptr(top, (int32_t)ThreadLocalAllocBuffer::alignment_reserve_in_bytes());
!   movptr(Address(thread_reg, in_bytes(JavaThread::tlab_end_offset())), top);
  
    if (ZeroTLAB) {
      // This is a fast TLAB refill, therefore the GC is not notified of it.
      // So compiled code must fill the new TLAB with zeroes.
      movptr(top, Address(thread_reg, in_bytes(JavaThread::tlab_start_offset())));
--- 5696,5706 ----
  #endif
    movptr(Address(thread_reg, in_bytes(JavaThread::tlab_start_offset())), top);
    movptr(Address(thread_reg, in_bytes(JavaThread::tlab_top_offset())), top);
    addptr(top, t1);
    subptr(top, (int32_t)ThreadLocalAllocBuffer::alignment_reserve_in_bytes());
!   movptr(Address(thread_reg, in_bytes(JavaThread::tlab_current_end_offset())), top);
  
    if (ZeroTLAB) {
      // This is a fast TLAB refill, therefore the GC is not notified of it.
      // So compiled code must fill the new TLAB with zeroes.
      movptr(top, Address(thread_reg, in_bytes(JavaThread::tlab_start_offset())));
*** 6257,6267 ****
      jcc(Assembler::aboveEqual, next);
      STOP("assert(top >= start)");
      should_not_reach_here();
  
      bind(next);
!     movptr(t1, Address(thread_reg, in_bytes(JavaThread::tlab_end_offset())));
      cmpptr(t1, Address(thread_reg, in_bytes(JavaThread::tlab_top_offset())));
      jcc(Assembler::aboveEqual, ok);
      STOP("assert(top <= end)");
      should_not_reach_here();
  
--- 6257,6267 ----
      jcc(Assembler::aboveEqual, next);
      STOP("assert(top >= start)");
      should_not_reach_here();
  
      bind(next);
!     movptr(t1, Address(thread_reg, in_bytes(JavaThread::tlab_current_end_offset())));
      cmpptr(t1, Address(thread_reg, in_bytes(JavaThread::tlab_top_offset())));
      jcc(Assembler::aboveEqual, ok);
      STOP("assert(top <= end)");
      should_not_reach_here();