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*/
// What kind of arraycopy variant is this? enum {
None, // not set yet
ArrayCopy, // System.arraycopy()
CloneInst, // A clone of instances
CloneArray, // A clone of arrays that don't require a barrier // - depends on GC - some need to treat oop arrays separately
CloneOopArray, // An oop array clone that requires GC barriers
CopyOf, // Arrays.copyOf()
CopyOfRange // Arrays.copyOfRange()
} _kind;
#ifndef PRODUCT staticconstchar* _kind_names[CopyOfRange+1]; #endif // Is the alloc obtained with // AllocateArrayNode::Ideal_array_allocation() tightly coupled // (arraycopy follows immediately the allocation)? // We cache the result of LibraryCallKit::tightly_coupled_allocation // here because it's much easier to find whether there's a tightly // couple allocation at parse time than at macro expansion time. At // macro expansion time, for every use of the allocation node we // would need to figure out whether it happens after the arraycopy (and // can be ignored) or between the allocation and the arraycopy. At // parse time, it's straightforward because whatever happens after // the arraycopy is not parsed yet so doesn't exist when // LibraryCallKit::tightly_coupled_allocation() is called. bool _alloc_tightly_coupled; bool _has_negative_length_guard;
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