Mercurial > hg > graal-jvmci-8
comparison graal/Compiler/src/com/sun/c1x/ir/UnsafeGetRaw.java @ 2507:9ec15d6914ca
Pull over of compiler from maxine repository.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 11:43:22 +0200 |
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2506:4a3bf8a5bf41 | 2507:9ec15d6914ca |
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1 /* | |
2 * Copyright (c) 2009, 2011, 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 */ | |
23 package com.sun.c1x.ir; | |
24 | |
25 import com.sun.c1x.debug.*; | |
26 import com.sun.cri.ci.*; | |
27 | |
28 /** | |
29 * The {@code UnsafeGetRaw} instruction represents an unsafe access of raw memory where | |
30 * the type is not an object reference. | |
31 * | |
32 * @author Ben L. Titzer | |
33 */ | |
34 public final class UnsafeGetRaw extends UnsafeRawOp { | |
35 | |
36 final boolean mayBeUnaligned; | |
37 | |
38 /** | |
39 * Constructs a new UnsafeGetRaw instruction. | |
40 * @param opKind the kind of the operation | |
41 * @param addr the instruction generating the base address | |
42 * @param mayBeUnaligned {@code true} if this operation may be unaligned | |
43 */ | |
44 public UnsafeGetRaw(CiKind opKind, Value addr, boolean mayBeUnaligned) { | |
45 super(opKind, addr, false); | |
46 this.mayBeUnaligned = mayBeUnaligned; | |
47 } | |
48 | |
49 /** | |
50 * Constructs a new UnsafeGetRaw instruction. | |
51 * @param opKind the kind of the operation | |
52 * @param addr the instruction generating the base address | |
53 * @param index the instruction generating the index | |
54 * @param log2scale the log base 2 of the scaling factor | |
55 * @param mayBeUnaligned {@code true} if this operation may be unaligned | |
56 */ | |
57 public UnsafeGetRaw(CiKind opKind, Value addr, Value index, int log2scale, boolean mayBeUnaligned) { | |
58 super(opKind, addr, index, log2scale, false); | |
59 this.mayBeUnaligned = mayBeUnaligned; | |
60 } | |
61 | |
62 /** | |
63 * Checks whether this operation may be unaligned. | |
64 * @return {@code true} if this operation may be unaligned | |
65 */ | |
66 public boolean mayBeUnaligned() { | |
67 return mayBeUnaligned; | |
68 } | |
69 | |
70 @Override | |
71 public void accept(ValueVisitor v) { | |
72 v.visitUnsafeGetRaw(this); | |
73 } | |
74 | |
75 @Override | |
76 public void print(LogStream out) { | |
77 out.print("UnsafeGetRaw.(base ").print(base()); | |
78 if (hasIndex()) { | |
79 out.print(", index ").print(index()).print(", log2_scale ").print(log2Scale()); | |
80 } | |
81 out.print(')'); | |
82 } | |
83 } |