src/hotspot/share/c1/c1_Runtime1.cpp

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

@@ -1400,17 +1400,11 @@
   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);
+    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);