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src/hotspot/share/oops/typeArrayKlass.cpp
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rev 49182 : 8198445: Access API for primitive/native arraycopy
rev 49183 : [mq]: 8198445-1.patch
@@ -147,16 +147,41 @@
}
// 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);
- HeapAccess<>::arraycopy(s, d, src, dst, (size_t)length << l2es);
+ 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) {
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