21 * questions.
22 *
23 */
24
25 #include "opto/arraycopynode.hpp"
26 #include "opto/graphKit.hpp"
27 #include "opto/idealKit.hpp"
28 #include "gc/shared/c2/modRefBarrierSetC2.hpp"
29
30 Node* ModRefBarrierSetC2::store_at_resolved(C2Access& access, C2AccessValue& val) const {
31 DecoratorSet decorators = access.decorators();
32
33 Node* adr = access.addr().node();
34
35 bool is_array = (decorators & IS_ARRAY) != 0;
36 bool anonymous = (decorators & ON_UNKNOWN_OOP_REF) != 0;
37 bool in_heap = (decorators & IN_HEAP) != 0;
38 bool use_precise = is_array || anonymous;
39 bool tightly_coupled_alloc = (decorators & C2_TIGHTLY_COUPLED_ALLOC) != 0;
40
41 if (!access.is_oop() || tightly_coupled_alloc || (!in_heap && !anonymous)) {
42 return BarrierSetC2::store_at_resolved(access, val);
43 }
44
45 assert(access.is_parse_access(), "entry not supported at optimization time");
46 C2ParseAccess& parse_access = static_cast<C2ParseAccess&>(access);
47
48 Node* store = BarrierSetC2::store_at_resolved(access, val);
49 post_barrier(parse_access.kit(), access.base(), adr, val.node(), use_precise);
50
51 return store;
52 }
53
54 Node* ModRefBarrierSetC2::atomic_cmpxchg_val_at_resolved(C2AtomicParseAccess& access, Node* expected_val,
55 Node* new_val, const Type* value_type) const {
56 if (!access.is_oop()) {
57 return BarrierSetC2::atomic_cmpxchg_val_at_resolved(access, expected_val, new_val, value_type);
58 }
59
60 Node* result = BarrierSetC2::atomic_cmpxchg_val_at_resolved(access, expected_val, new_val, value_type);
61
62 post_barrier(access.kit(), access.base(), access.addr().node(), new_val, true);
63
64 return result;
65 }
66
67 Node* ModRefBarrierSetC2::atomic_cmpxchg_bool_at_resolved(C2AtomicParseAccess& access, Node* expected_val,
68 Node* new_val, const Type* value_type) const {
69 GraphKit* kit = access.kit();
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21 * questions.
22 *
23 */
24
25 #include "opto/arraycopynode.hpp"
26 #include "opto/graphKit.hpp"
27 #include "opto/idealKit.hpp"
28 #include "gc/shared/c2/modRefBarrierSetC2.hpp"
29
30 Node* ModRefBarrierSetC2::store_at_resolved(C2Access& access, C2AccessValue& val) const {
31 DecoratorSet decorators = access.decorators();
32
33 Node* adr = access.addr().node();
34
35 bool is_array = (decorators & IS_ARRAY) != 0;
36 bool anonymous = (decorators & ON_UNKNOWN_OOP_REF) != 0;
37 bool in_heap = (decorators & IN_HEAP) != 0;
38 bool use_precise = is_array || anonymous;
39 bool tightly_coupled_alloc = (decorators & C2_TIGHTLY_COUPLED_ALLOC) != 0;
40
41 const InlineTypeNode* vt = nullptr;
42 if (access.is_parse_access() && static_cast<C2ParseAccess&>(access).vt() != nullptr) {
43 vt = static_cast<C2ParseAccess&>(access).vt();
44 }
45
46 if (vt == nullptr && (!access.is_oop() || tightly_coupled_alloc || (!in_heap && !anonymous))) {
47 return BarrierSetC2::store_at_resolved(access, val);
48 }
49
50 assert(access.is_parse_access(), "entry not supported at optimization time");
51 C2ParseAccess& parse_access = static_cast<C2ParseAccess&>(access);
52
53 Node* store = BarrierSetC2::store_at_resolved(access, val);
54
55 // TODO 8350865
56 // - We actually only need the post barrier once for non-arrays (same for C1, right)?
57 // - Value is only needed to determine if we are storing null. Maybe we can go with a simple boolean?
58 GraphKit* kit = parse_access.kit();
59 if (vt != nullptr) {
60 for (uint i = 0; i < vt->field_count(); ++i) {
61 ciType* type = vt->field_type(i);
62 if (!type->is_primitive_type()) {
63 ciInlineKlass* vk = vt->bottom_type()->inline_klass();
64 int field_offset = vt->field_offset(i) - vk->payload_offset();
65 Node* value = vt->field_value(i);
66 Node* field_adr = kit->basic_plus_adr(access.base(), adr, field_offset);
67 post_barrier(kit, access.base(), field_adr, value, use_precise);
68 }
69 }
70 } else {
71 post_barrier(kit, access.base(), adr, val.node(), use_precise);
72 }
73
74 return store;
75 }
76
77 Node* ModRefBarrierSetC2::atomic_cmpxchg_val_at_resolved(C2AtomicParseAccess& access, Node* expected_val,
78 Node* new_val, const Type* value_type) const {
79 if (!access.is_oop()) {
80 return BarrierSetC2::atomic_cmpxchg_val_at_resolved(access, expected_val, new_val, value_type);
81 }
82
83 Node* result = BarrierSetC2::atomic_cmpxchg_val_at_resolved(access, expected_val, new_val, value_type);
84
85 post_barrier(access.kit(), access.base(), access.addr().node(), new_val, true);
86
87 return result;
88 }
89
90 Node* ModRefBarrierSetC2::atomic_cmpxchg_bool_at_resolved(C2AtomicParseAccess& access, Node* expected_val,
91 Node* new_val, const Type* value_type) const {
92 GraphKit* kit = access.kit();
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