src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp

rev 48562 : [mq]: heap23

*** 4074,4084 ****
    if (var_size_in_bytes == noreg) {
      lea(end, Address(obj, con_size_in_bytes));
    } else {
      lea(end, Address(obj, var_size_in_bytes));
    }
!   ldr(rscratch1, Address(rthread, JavaThread::tlab_end_offset()));
    cmp(end, rscratch1);
    br(Assembler::HI, slow_case);
  
    // update the tlab top pointer
    str(end, Address(rthread, JavaThread::tlab_top_offset()));
--- 4074,4084 ----
    if (var_size_in_bytes == noreg) {
      lea(end, Address(obj, con_size_in_bytes));
    } else {
      lea(end, Address(obj, var_size_in_bytes));
    }
!   ldr(rscratch1, Address(rthread, JavaThread::tlab_current_end_offset()));
    cmp(end, rscratch1);
    br(Assembler::HI, slow_case);
  
    // update the tlab top pointer
    str(end, Address(rthread, JavaThread::tlab_top_offset()));
*** 4104,4114 ****
      // No allocation in the shared eden.
      b(slow_case);
    }
  
    ldr(top, Address(rthread, in_bytes(JavaThread::tlab_top_offset())));
!   ldr(t1,  Address(rthread, in_bytes(JavaThread::tlab_end_offset())));
  
    // calculate amount of free space
    sub(t1, t1, top);
    lsr(t1, t1, LogHeapWordSize);
  
--- 4104,4114 ----
      // No allocation in the shared eden.
      b(slow_case);
    }
  
    ldr(top, Address(rthread, in_bytes(JavaThread::tlab_top_offset())));
!   ldr(t1,  Address(rthread, in_bytes(JavaThread::tlab_current_end_offset())));
  
    // calculate amount of free space
    sub(t1, t1, top);
    lsr(t1, t1, LogHeapWordSize);
  
*** 4198,4208 ****
  #endif
    str(top, Address(rthread, in_bytes(JavaThread::tlab_start_offset())));
    str(top, Address(rthread, in_bytes(JavaThread::tlab_top_offset())));
    add(top, top, t1);
    sub(top, top, (int32_t)ThreadLocalAllocBuffer::alignment_reserve_in_bytes());
!   str(top, Address(rthread, in_bytes(JavaThread::tlab_end_offset())));
  
    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.
      ldr(top, Address(rthread, in_bytes(JavaThread::tlab_start_offset())));
--- 4198,4208 ----
  #endif
    str(top, Address(rthread, in_bytes(JavaThread::tlab_start_offset())));
    str(top, Address(rthread, in_bytes(JavaThread::tlab_top_offset())));
    add(top, top, t1);
    sub(top, top, (int32_t)ThreadLocalAllocBuffer::alignment_reserve_in_bytes());
!   str(top, Address(rthread, in_bytes(JavaThread::tlab_current_end_offset())));
  
    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.
      ldr(top, Address(rthread, in_bytes(JavaThread::tlab_start_offset())));
*** 4345,4355 ****
      br(Assembler::HS, next);
      STOP("assert(top >= start)");
      should_not_reach_here();
  
      bind(next);
!     ldr(rscratch2, Address(rthread, in_bytes(JavaThread::tlab_end_offset())));
      ldr(rscratch1, Address(rthread, in_bytes(JavaThread::tlab_top_offset())));
      cmp(rscratch2, rscratch1);
      br(Assembler::HS, ok);
      STOP("assert(top <= end)");
      should_not_reach_here();
--- 4345,4355 ----
      br(Assembler::HS, next);
      STOP("assert(top >= start)");
      should_not_reach_here();
  
      bind(next);
!     ldr(rscratch2, Address(rthread, in_bytes(JavaThread::tlab_current_end_offset())));
      ldr(rscratch1, Address(rthread, in_bytes(JavaThread::tlab_top_offset())));
      cmp(rscratch2, rscratch1);
      br(Assembler::HS, ok);
      STOP("assert(top <= end)");
      should_not_reach_here();