1 /*
2 * Copyright (c) 2009, 2015, 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 */
174 return barriers & ~implicitMemoryBarriers;
175 }
176
177 /**
178 * Determine whether a kind can be stored in a register of a given category.
179 *
180 * @param category the category of the register
181 * @param kind the kind that should be stored in the register
182 */
183 public abstract boolean canStoreValue(RegisterCategory category, PlatformKind kind);
184
185 /**
186 * Return the largest kind that can be stored in a register of a given category.
187 *
188 * @param category the category of the register
189 * @return the largest kind that can be stored in a register {@code category}
190 */
191 public abstract PlatformKind getLargestStorableKind(RegisterCategory category);
192
193 /**
194 * Return the {@link PlatformKind} that is used to store values of a given {@link JavaKind}.
195 */
196 public abstract PlatformKind getPlatformKind(JavaKind javaKind);
197
198 @Override
199 public final boolean equals(Object obj) {
200 if (obj == this) {
201 return true;
202 }
203 if (obj instanceof Architecture) {
204 Architecture that = (Architecture) obj;
205 if (this.name.equals(that.name)) {
206 assert this.byteOrder.equals(that.byteOrder);
207 assert this.implicitMemoryBarriers == that.implicitMemoryBarriers;
208 assert this.machineCodeCallDisplacementOffset == that.machineCodeCallDisplacementOffset;
209 assert this.registers.equals(that.registers);
210 assert this.returnAddressSize == that.returnAddressSize;
211 assert this.unalignedMemoryAccess == that.unalignedMemoryAccess;
212 assert this.wordKind == that.wordKind;
213 return true;
214 }
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1 /*
2 * Copyright (c) 2009, 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 */
174 return barriers & ~implicitMemoryBarriers;
175 }
176
177 /**
178 * Determine whether a kind can be stored in a register of a given category.
179 *
180 * @param category the category of the register
181 * @param kind the kind that should be stored in the register
182 */
183 public abstract boolean canStoreValue(RegisterCategory category, PlatformKind kind);
184
185 /**
186 * Return the largest kind that can be stored in a register of a given category.
187 *
188 * @param category the category of the register
189 * @return the largest kind that can be stored in a register {@code category}
190 */
191 public abstract PlatformKind getLargestStorableKind(RegisterCategory category);
192
193 /**
194 * Gets the {@link PlatformKind} that is used to store values of a given {@link JavaKind}.
195 *
196 * @return {@code null} if there no deterministic {@link PlatformKind} for {@code javaKind}
197 */
198 public abstract PlatformKind getPlatformKind(JavaKind javaKind);
199
200 @Override
201 public final boolean equals(Object obj) {
202 if (obj == this) {
203 return true;
204 }
205 if (obj instanceof Architecture) {
206 Architecture that = (Architecture) obj;
207 if (this.name.equals(that.name)) {
208 assert this.byteOrder.equals(that.byteOrder);
209 assert this.implicitMemoryBarriers == that.implicitMemoryBarriers;
210 assert this.machineCodeCallDisplacementOffset == that.machineCodeCallDisplacementOffset;
211 assert this.registers.equals(that.registers);
212 assert this.returnAddressSize == that.returnAddressSize;
213 assert this.unalignedMemoryAccess == that.unalignedMemoryAccess;
214 assert this.wordKind == that.wordKind;
215 return true;
216 }
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