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8210887: Tweak C2 gc api for arraycopy

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Reviewed-by: kvn, thartmann
This commit is contained in:
Roland Westrelin 2018-09-28 10:42:40 +02:00
parent b00f4560cb
commit ce59b4b472
9 changed files with 64 additions and 47 deletions
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2
src/hotspot/share/opto/library_call.cpp
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@ -4330,7 +4330,7 @@ bool LibraryCallKit::inline_native_clone(bool is_virtual) {
Node* alloc_obj = new_array(obj_klass, obj_length, 0, &obj_size); // no arguments to push
BarrierSetC2* bs = BarrierSet::barrier_set()->barrier_set_c2();
if (bs->array_copy_requires_gc_barriers(T_OBJECT)) {
if (bs->array_copy_requires_gc_barriers(true, T_OBJECT, true, BarrierSetC2::Parsing)) {
// If it is an oop array, it requires very special treatment,
// because gc barriers are required when accessing the array.
Node* is_obja = generate_objArray_guard(obj_klass, (RegionNode*)NULL);