src/hotspot/share/oops/typeArrayKlass.cpp

rev 49182 : 8198445: Access API for primitive/native arraycopy

*** 147,162 ****
    }
    // Check zero copy
    if (length == 0)
      return;
  
!   // This is an attempt to make the copy_array fast.
!   int l2es = log2_element_size();
!   int ihs = array_header_in_bytes() / wordSize;
!   char* src = (char*) ((oop*)s + ihs) + ((size_t)src_pos << l2es);
!   char* dst = (char*) ((oop*)d + ihs) + ((size_t)dst_pos << l2es);
!   Copy::conjoint_memory_atomic(src, dst, (size_t)length << l2es);
  }
  
  
  // create a klass of array holding typeArrays
  Klass* TypeArrayKlass::array_klass_impl(bool or_null, int n, TRAPS) {
--- 147,187 ----
    }
    // Check zero copy
    if (length == 0)
      return;
  
!   typeArrayOop src = typeArrayOop(s);
!   typeArrayOop dst = typeArrayOop(d);
! 
!   switch (element_type()) {
!     case T_BOOLEAN:
!       HeapAccess<ARRAYCOPY_ATOMIC>::arraycopy(s, d, src->bool_at_addr(src_pos), dst->bool_at_addr(dst_pos), length);
!       break;
!     case T_CHAR:
!       HeapAccess<ARRAYCOPY_ATOMIC>::arraycopy(s, d, src->char_at_addr(src_pos), dst->char_at_addr(dst_pos), length);
!       break;
!     case T_FLOAT:
!       HeapAccess<ARRAYCOPY_ATOMIC>::arraycopy(s, d, src->float_at_addr(src_pos), dst->float_at_addr(dst_pos), length);
!       break;
!     case T_DOUBLE:
!       HeapAccess<ARRAYCOPY_ATOMIC>::arraycopy(s, d, src->double_at_addr(src_pos), dst->double_at_addr(dst_pos), length);
!       break;
!     case T_BYTE:
!       HeapAccess<ARRAYCOPY_ATOMIC>::arraycopy(s, d, src->byte_at_addr(src_pos), dst->byte_at_addr(dst_pos), length);
!       break;
!     case T_SHORT:
!       HeapAccess<ARRAYCOPY_ATOMIC>::arraycopy(s, d, src->short_at_addr(src_pos), dst->short_at_addr(dst_pos), length);
!       break;
!     case T_INT:
!       HeapAccess<ARRAYCOPY_ATOMIC>::arraycopy(s, d, src->int_at_addr(src_pos), dst->int_at_addr(dst_pos), length);
!       break;
!     case T_LONG:
!       HeapAccess<ARRAYCOPY_ATOMIC>::arraycopy(s, d, src->long_at_addr(src_pos), dst->long_at_addr(dst_pos), length);
!       break;
!     default:
!       ShouldNotReachHere();
!   }
  }
  
  
  // create a klass of array holding typeArrays
  Klass* TypeArrayKlass::array_klass_impl(bool or_null, int n, TRAPS) {