Mercurial > hg > graal-jvmci-8
annotate jvmci/jdk.vm.ci.code/src/jdk/vm/ci/code/RegisterValue.java @ 23396:9ed5b586018b
Replace LIRKind with abstract base class (JDK-8156942).
| author | Roland Schatz <roland.schatz@oracle.com> |
|---|---|
| date | Fri, 13 May 2016 14:33:19 +0200 |
| parents | 1bbd4a7c274b |
| children | a7b12c1ab514 |
| rev | line source |
|---|---|
| 22054 | 1 /* |
|
23396
9ed5b586018b
Replace LIRKind with abstract base class (JDK-8156942).
Roland Schatz <roland.schatz@oracle.com>
parents:
22672
diff
changeset
|
2 * Copyright (c) 2009, 2016, Oracle and/or its affiliates. All rights reserved. |
| 22054 | 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 */ | |
|
22672
1bbd4a7c274b
Rename jdk.internal.jvmci to jdk.vm.ci
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22569
diff
changeset
|
23 package jdk.vm.ci.code; |
| 22054 | 24 |
|
22672
1bbd4a7c274b
Rename jdk.internal.jvmci to jdk.vm.ci
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22569
diff
changeset
|
25 import jdk.vm.ci.meta.AllocatableValue; |
|
1bbd4a7c274b
Rename jdk.internal.jvmci to jdk.vm.ci
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22569
diff
changeset
|
26 import jdk.vm.ci.meta.JavaKind; |
|
23396
9ed5b586018b
Replace LIRKind with abstract base class (JDK-8156942).
Roland Schatz <roland.schatz@oracle.com>
parents:
22672
diff
changeset
|
27 import jdk.vm.ci.meta.ValueKind; |
| 22054 | 28 |
| 29 /** | |
| 30 * Denotes a register that stores a value of a fixed kind. There is exactly one (canonical) instance | |
|
22536
dc1aeef79e7e
Refactoring: Rename Kind to JavaKind.
Roland Schatz <roland.schatz@oracle.com>
parents:
22054
diff
changeset
|
31 * of {@link RegisterValue} for each ({@link Register}, {@link JavaKind}) pair. Use |
|
23396
9ed5b586018b
Replace LIRKind with abstract base class (JDK-8156942).
Roland Schatz <roland.schatz@oracle.com>
parents:
22672
diff
changeset
|
32 * {@link Register#asValue(ValueKind)} to retrieve the canonical {@link RegisterValue} instance for |
|
9ed5b586018b
Replace LIRKind with abstract base class (JDK-8156942).
Roland Schatz <roland.schatz@oracle.com>
parents:
22672
diff
changeset
|
33 * a given (register,kind) pair. |
| 22054 | 34 */ |
| 35 public final class RegisterValue extends AllocatableValue { | |
| 36 | |
| 37 private final Register reg; | |
| 38 | |
| 39 /** | |
| 40 * Should only be called from {@link Register#Register} to ensure canonicalization. | |
| 41 */ | |
|
23396
9ed5b586018b
Replace LIRKind with abstract base class (JDK-8156942).
Roland Schatz <roland.schatz@oracle.com>
parents:
22672
diff
changeset
|
42 protected RegisterValue(ValueKind<?> kind, Register register) { |
| 22054 | 43 super(kind); |
| 44 this.reg = register; | |
| 45 } | |
| 46 | |
| 47 @Override | |
| 48 public String toString() { | |
| 49 return getRegister().name + getKindSuffix(); | |
| 50 } | |
| 51 | |
| 52 /** | |
| 53 * @return the register that contains the value | |
| 54 */ | |
| 55 public Register getRegister() { | |
| 56 return reg; | |
| 57 } | |
| 58 | |
| 59 @Override | |
| 60 public int hashCode() { | |
| 61 return 29 * super.hashCode() + reg.hashCode(); | |
| 62 } | |
| 63 | |
| 64 @Override | |
| 65 public boolean equals(Object obj) { | |
| 66 if (obj instanceof RegisterValue) { | |
| 67 RegisterValue other = (RegisterValue) obj; | |
| 68 return super.equals(obj) && reg.equals(other.reg); | |
| 69 } | |
| 70 return false; | |
| 71 } | |
| 72 } |