src/hotspot/share/c1/c1_Runtime1.cpp

rev 49217 : 8198445: Access API for primitive/native arraycopy
Reviewed-by: pliden, eosterlund, dholmes

*** 1,7 ****
  /*
!  * Copyright (c) 1999, 2017, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,7 ----
  /*
!  * Copyright (c) 1999, 2018, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
*** 1400,1416 ****
    if (length == 0) return ac_ok;
    if (src->is_typeArray()) {
      Klass* klass_oop = src->klass();
      if (klass_oop != dst->klass()) return ac_failed;
      TypeArrayKlass* klass = TypeArrayKlass::cast(klass_oop);
!     const int l2es = klass->log2_element_size();
!     const int ihs = klass->array_header_in_bytes() / wordSize;
!     char* src_addr = (char*) ((oopDesc**)src + ihs) + (src_pos << l2es);
!     char* dst_addr = (char*) ((oopDesc**)dst + ihs) + (dst_pos << l2es);
!     // Potential problem: memmove is not guaranteed to be word atomic
!     // Revisit in Merlin
!     memmove(dst_addr, src_addr, length << l2es);
      return ac_ok;
    } else if (src->is_objArray() && dst->is_objArray()) {
      if (UseCompressedOops) {
        narrowOop *src_addr  = objArrayOop(src)->obj_at_addr<narrowOop>(src_pos);
        narrowOop *dst_addr  = objArrayOop(dst)->obj_at_addr<narrowOop>(dst_pos);
--- 1400,1410 ----
    if (length == 0) return ac_ok;
    if (src->is_typeArray()) {
      Klass* klass_oop = src->klass();
      if (klass_oop != dst->klass()) return ac_failed;
      TypeArrayKlass* klass = TypeArrayKlass::cast(klass_oop);
!     klass->copy_array(arrayOop(src), src_pos, arrayOop(dst), dst_pos, length, Thread::current());
      return ac_ok;
    } else if (src->is_objArray() && dst->is_objArray()) {
      if (UseCompressedOops) {
        narrowOop *src_addr  = objArrayOop(src)->obj_at_addr<narrowOop>(src_pos);
        narrowOop *dst_addr  = objArrayOop(dst)->obj_at_addr<narrowOop>(dst_pos);