1 /*
2 * Copyright (c) 1998, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
122 return;
123 }
124 }
125
126 ciType* field_klass = field->type();
127 bool is_vol = field->is_volatile();
128
129 // Compute address and memory type.
130 int offset = field->offset_in_bytes();
131 const TypePtr* adr_type = C->alias_type(field)->adr_type();
132 Node *adr = basic_plus_adr(obj, obj, offset);
133
134 // Build the resultant type of the load
135 const Type *type;
136
137 bool must_assert_null = false;
138
139 DecoratorSet decorators = IN_HEAP;
140 decorators |= is_vol ? MO_SEQ_CST : MO_UNORDERED;
141
142 bool is_obj = bt == T_OBJECT || bt == T_ARRAY;
143
144 if (is_obj) {
145 if (!field->type()->is_loaded()) {
146 type = TypeInstPtr::BOTTOM;
147 must_assert_null = true;
148 } else if (field->is_static_constant()) {
149 // This can happen if the constant oop is non-perm.
150 ciObject* con = field->constant_value().as_object();
151 // Do not "join" in the previous type; it doesn't add value,
152 // and may yield a vacuous result if the field is of interface type.
153 if (con->is_null_object()) {
154 type = TypePtr::NULL_PTR;
155 } else {
156 type = TypeOopPtr::make_from_constant(con)->isa_oopptr();
157 }
158 assert(type != NULL, "field singleton type must be consistent");
159 } else {
160 type = TypeOopPtr::make_from_klass(field_klass->as_klass());
161 }
162 } else {
193 set_bci(iter().next_bci());
194 null_assert(peek());
195 set_bci(iter().cur_bci()); // put it back
196 }
197 }
198
199 void Parse::do_put_xxx(Node* obj, ciField* field, bool is_field) {
200 bool is_vol = field->is_volatile();
201
202 // Compute address and memory type.
203 int offset = field->offset_in_bytes();
204 const TypePtr* adr_type = C->alias_type(field)->adr_type();
205 Node* adr = basic_plus_adr(obj, obj, offset);
206 BasicType bt = field->layout_type();
207 // Value to be stored
208 Node* val = type2size[bt] == 1 ? pop() : pop_pair();
209
210 DecoratorSet decorators = IN_HEAP;
211 decorators |= is_vol ? MO_SEQ_CST : MO_UNORDERED;
212
213 bool is_obj = bt == T_OBJECT || bt == T_ARRAY;
214
215 // Store the value.
216 const Type* field_type;
217 if (!field->type()->is_loaded()) {
218 field_type = TypeInstPtr::BOTTOM;
219 } else {
220 if (is_obj) {
221 field_type = TypeOopPtr::make_from_klass(field->type()->as_klass());
222 } else {
223 field_type = Type::BOTTOM;
224 }
225 }
226 access_store_at(obj, adr, adr_type, val, field_type, bt, decorators);
227
228 if (is_field) {
229 // Remember we wrote a volatile field.
230 // For not multiple copy atomic cpu (ppc64) a barrier should be issued
231 // in constructors which have such stores. See do_exits() in parse1.cpp.
232 if (is_vol) {
233 set_wrote_volatile(true);
| 1 /*
2 * Copyright (c) 1998, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
122 return;
123 }
124 }
125
126 ciType* field_klass = field->type();
127 bool is_vol = field->is_volatile();
128
129 // Compute address and memory type.
130 int offset = field->offset_in_bytes();
131 const TypePtr* adr_type = C->alias_type(field)->adr_type();
132 Node *adr = basic_plus_adr(obj, obj, offset);
133
134 // Build the resultant type of the load
135 const Type *type;
136
137 bool must_assert_null = false;
138
139 DecoratorSet decorators = IN_HEAP;
140 decorators |= is_vol ? MO_SEQ_CST : MO_UNORDERED;
141
142 bool is_obj = is_reference_type(bt);
143
144 if (is_obj) {
145 if (!field->type()->is_loaded()) {
146 type = TypeInstPtr::BOTTOM;
147 must_assert_null = true;
148 } else if (field->is_static_constant()) {
149 // This can happen if the constant oop is non-perm.
150 ciObject* con = field->constant_value().as_object();
151 // Do not "join" in the previous type; it doesn't add value,
152 // and may yield a vacuous result if the field is of interface type.
153 if (con->is_null_object()) {
154 type = TypePtr::NULL_PTR;
155 } else {
156 type = TypeOopPtr::make_from_constant(con)->isa_oopptr();
157 }
158 assert(type != NULL, "field singleton type must be consistent");
159 } else {
160 type = TypeOopPtr::make_from_klass(field_klass->as_klass());
161 }
162 } else {
193 set_bci(iter().next_bci());
194 null_assert(peek());
195 set_bci(iter().cur_bci()); // put it back
196 }
197 }
198
199 void Parse::do_put_xxx(Node* obj, ciField* field, bool is_field) {
200 bool is_vol = field->is_volatile();
201
202 // Compute address and memory type.
203 int offset = field->offset_in_bytes();
204 const TypePtr* adr_type = C->alias_type(field)->adr_type();
205 Node* adr = basic_plus_adr(obj, obj, offset);
206 BasicType bt = field->layout_type();
207 // Value to be stored
208 Node* val = type2size[bt] == 1 ? pop() : pop_pair();
209
210 DecoratorSet decorators = IN_HEAP;
211 decorators |= is_vol ? MO_SEQ_CST : MO_UNORDERED;
212
213 bool is_obj = is_reference_type(bt);
214
215 // Store the value.
216 const Type* field_type;
217 if (!field->type()->is_loaded()) {
218 field_type = TypeInstPtr::BOTTOM;
219 } else {
220 if (is_obj) {
221 field_type = TypeOopPtr::make_from_klass(field->type()->as_klass());
222 } else {
223 field_type = Type::BOTTOM;
224 }
225 }
226 access_store_at(obj, adr, adr_type, val, field_type, bt, decorators);
227
228 if (is_field) {
229 // Remember we wrote a volatile field.
230 // For not multiple copy atomic cpu (ppc64) a barrier should be issued
231 // in constructors which have such stores. See do_exits() in parse1.cpp.
232 if (is_vol) {
233 set_wrote_volatile(true);
|