281 // Clone primitive array
282 bt = T_LONG;
283 }
284
285 Node* ctrl = ac->in(TypeFunc::Control);
286 Node* mem = ac->in(TypeFunc::Memory);
287 Node* src = ac->in(ArrayCopyNode::Src);
288 Node* src_offset = ac->in(ArrayCopyNode::SrcPos);
289 Node* dest = ac->in(ArrayCopyNode::Dest);
290 Node* dest_offset = ac->in(ArrayCopyNode::DestPos);
291 Node* length = ac->in(ArrayCopyNode::Length);
292
293 if (bt == T_OBJECT) {
294 // BarrierSetC2::clone sets the offsets via BarrierSetC2::arraycopy_payload_base_offset
295 // which 8-byte aligns them to allow for word size copies. Make sure the offsets point
296 // to the first element in the array when cloning object arrays. Otherwise, load
297 // barriers are applied to parts of the header. Also adjust the length accordingly.
298 assert(src_offset == dest_offset, "should be equal");
299 jlong offset = src_offset->get_long();
300 if (offset != arrayOopDesc::base_offset_in_bytes(T_OBJECT)) {
301 assert(!UseCompressedClassPointers, "should only happen without compressed class pointers");
302 assert((arrayOopDesc::base_offset_in_bytes(T_OBJECT) - offset) == BytesPerLong, "unexpected offset");
303 length = phase->transform_later(new SubLNode(length, phase->longcon(1))); // Size is in longs
304 src_offset = phase->longcon(arrayOopDesc::base_offset_in_bytes(T_OBJECT));
305 dest_offset = src_offset;
306 }
307 }
308 Node* payload_src = phase->basic_plus_adr(src, src_offset);
309 Node* payload_dst = phase->basic_plus_adr(dest, dest_offset);
310
311 const char* copyfunc_name = "arraycopy";
312 address copyfunc_addr = phase->basictype2arraycopy(bt, nullptr, nullptr, true, copyfunc_name, true);
313
314 const TypePtr* raw_adr_type = TypeRawPtr::BOTTOM;
315 const TypeFunc* call_type = OptoRuntime::fast_arraycopy_Type();
316
317 Node* call = phase->make_leaf_call(ctrl, mem, call_type, copyfunc_addr, copyfunc_name, raw_adr_type, payload_src, payload_dst, length XTOP);
318 phase->transform_later(call);
319
320 phase->igvn().replace_node(ac, call);
321 return;
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281 // Clone primitive array
282 bt = T_LONG;
283 }
284
285 Node* ctrl = ac->in(TypeFunc::Control);
286 Node* mem = ac->in(TypeFunc::Memory);
287 Node* src = ac->in(ArrayCopyNode::Src);
288 Node* src_offset = ac->in(ArrayCopyNode::SrcPos);
289 Node* dest = ac->in(ArrayCopyNode::Dest);
290 Node* dest_offset = ac->in(ArrayCopyNode::DestPos);
291 Node* length = ac->in(ArrayCopyNode::Length);
292
293 if (bt == T_OBJECT) {
294 // BarrierSetC2::clone sets the offsets via BarrierSetC2::arraycopy_payload_base_offset
295 // which 8-byte aligns them to allow for word size copies. Make sure the offsets point
296 // to the first element in the array when cloning object arrays. Otherwise, load
297 // barriers are applied to parts of the header. Also adjust the length accordingly.
298 assert(src_offset == dest_offset, "should be equal");
299 jlong offset = src_offset->get_long();
300 if (offset != arrayOopDesc::base_offset_in_bytes(T_OBJECT)) {
301 assert(!UseCompressedClassPointers || UseCompactObjectHeaders, "should only happen without compressed class pointers");
302 assert((arrayOopDesc::base_offset_in_bytes(T_OBJECT) - offset) == BytesPerLong, "unexpected offset");
303 length = phase->transform_later(new SubLNode(length, phase->longcon(1))); // Size is in longs
304 src_offset = phase->longcon(arrayOopDesc::base_offset_in_bytes(T_OBJECT));
305 dest_offset = src_offset;
306 }
307 }
308 Node* payload_src = phase->basic_plus_adr(src, src_offset);
309 Node* payload_dst = phase->basic_plus_adr(dest, dest_offset);
310
311 const char* copyfunc_name = "arraycopy";
312 address copyfunc_addr = phase->basictype2arraycopy(bt, nullptr, nullptr, true, copyfunc_name, true);
313
314 const TypePtr* raw_adr_type = TypeRawPtr::BOTTOM;
315 const TypeFunc* call_type = OptoRuntime::fast_arraycopy_Type();
316
317 Node* call = phase->make_leaf_call(ctrl, mem, call_type, copyfunc_addr, copyfunc_name, raw_adr_type, payload_src, payload_dst, length XTOP);
318 phase->transform_later(call);
319
320 phase->igvn().replace_node(ac, call);
321 return;
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