Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/local/SLWriteLocalVariableNode.java @ 13882:afd6fa5e8229
SL: Feedback from reviewers
author | Christian Wimmer <christian.wimmer@oracle.com> |
---|---|
date | Wed, 05 Feb 2014 08:02:15 -0800 |
parents | 64c77f0577bb |
children | 96bd95f62d92 |
rev | line source |
---|---|
7503
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
1 /* |
13821
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved. |
7503
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
4 * |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
5 * This code is free software; you can redistribute it and/or modify it |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
6 * under the terms of the GNU General Public License version 2 only, as |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
7 * published by the Free Software Foundation. |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
8 * |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
9 * This code is distributed in the hope that it will be useful, but WITHOUT |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
12 * version 2 for more details (a copy is included in the LICENSE file that |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
13 * accompanied this code). |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
14 * |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
15 * You should have received a copy of the GNU General Public License version |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
16 * 2 along with this work; if not, write to the Free Software Foundation, |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
18 * |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
21 * questions. |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
22 */ |
13761
7c418666c6c9
Refactoring and cleanup of Simple Language (more to come soon)
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13359
diff
changeset
|
23 package com.oracle.truffle.sl.nodes.local; |
7503
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
24 |
13359
136df94b5aa8
SL: updated outdated implementation of write local variable nodes in SL.
Christian Humer <christian.humer@gmail.com>
parents:
12405
diff
changeset
|
25 import com.oracle.truffle.api.*; |
10597
79041ab43660
Truffle-DSL: API-change: Renamed truffle.api.codegen to truffle.api.dsl for all projects and packages.
Christian Humer <christian.humer@gmail.com>
parents:
10593
diff
changeset
|
26 import com.oracle.truffle.api.dsl.*; |
7503
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
27 import com.oracle.truffle.api.frame.*; |
13761
7c418666c6c9
Refactoring and cleanup of Simple Language (more to come soon)
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13359
diff
changeset
|
28 import com.oracle.truffle.sl.nodes.*; |
7503
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
29 |
13836
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
30 /** |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
31 * Node to write a local variable to a function's {@link VirtualFrame frame}. The Truffle frame API |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
32 * allows to store primitive values of all Java primitive types, and Object values. |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
33 */ |
13821
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
34 @NodeChild(value = "valueNode") |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
35 @NodeField(name = "slot", type = FrameSlot.class) |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
36 public abstract class SLWriteLocalVariableNode extends SLExpressionNode { |
7503
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
37 |
13836
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
38 /** |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
39 * Returns the descriptor of the accessed local variable. The implementation of this method is |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
40 * created by the Truffle DSL based on the {@link NodeField} annotation on the class. |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
41 */ |
13821
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
42 protected abstract FrameSlot getSlot(); |
7503
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
43 |
13836
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
44 /** |
13882
afd6fa5e8229
SL: Feedback from reviewers
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13836
diff
changeset
|
45 * Specialized method to write a primitive {@code long} value. This is only possible if the |
13836
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
46 * local variable also has currently the type {@code long}, therefore a Truffle DSL |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
47 * {@link #isLongKind() custom guard} is specified. |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
48 */ |
13761
7c418666c6c9
Refactoring and cleanup of Simple Language (more to come soon)
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13359
diff
changeset
|
49 @Specialization(guards = "isLongKind") |
13821
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
50 protected long write(VirtualFrame frame, long value) { |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
51 frame.setLong(getSlot(), value); |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
52 return value; |
7503
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
53 } |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
54 |
13359
136df94b5aa8
SL: updated outdated implementation of write local variable nodes in SL.
Christian Humer <christian.humer@gmail.com>
parents:
12405
diff
changeset
|
55 @Specialization(guards = "isBooleanKind") |
13821
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
56 protected boolean write(VirtualFrame frame, boolean value) { |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
57 frame.setBoolean(getSlot(), value); |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
58 return value; |
7503
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
59 } |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
60 |
13836
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
61 /** |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
62 * Generic write method that works for all possible types. |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
63 * <p> |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
64 * Why is this method annotated with {@link Specialization} and not {@link Generic}? For a |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
65 * {@link Generic} method, the Truffle DSL generated code would try all other specializations |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
66 * first before calling this method. We know that all these specializations would fail their |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
67 * guards, so there is no point in calling them. Since this method takes a value of type |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
68 * {@link Object}, it is guaranteed to never fail, i.e., once we are in this specialization the |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
69 * node will never be re-specialized. |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
70 */ |
13821
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
71 @Specialization |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
72 protected Object write(VirtualFrame frame, Object value) { |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
73 if (getSlot().getKind() != FrameSlotKind.Object) { |
13836
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
74 /* |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
75 * The local variable has still a primitive type, we need to change it to Object. Since |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
76 * the variable type is important when the compiler optimizes a method, we also discard |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
77 * compiled code. |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
78 */ |
13821
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
79 CompilerDirectives.transferToInterpreterAndInvalidate(); |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
80 getSlot().setKind(FrameSlotKind.Object); |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
81 } |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
82 frame.setObject(getSlot(), value); |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
83 return value; |
7503
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
84 } |
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
85 |
13836
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
86 /** |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
87 * Guard function that the local variable has the type {@code long}. |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
88 */ |
13821
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
89 protected boolean isLongKind() { |
13761
7c418666c6c9
Refactoring and cleanup of Simple Language (more to come soon)
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13359
diff
changeset
|
90 return isKind(FrameSlotKind.Long); |
13359
136df94b5aa8
SL: updated outdated implementation of write local variable nodes in SL.
Christian Humer <christian.humer@gmail.com>
parents:
12405
diff
changeset
|
91 } |
136df94b5aa8
SL: updated outdated implementation of write local variable nodes in SL.
Christian Humer <christian.humer@gmail.com>
parents:
12405
diff
changeset
|
92 |
13821
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
93 protected boolean isBooleanKind() { |
13359
136df94b5aa8
SL: updated outdated implementation of write local variable nodes in SL.
Christian Humer <christian.humer@gmail.com>
parents:
12405
diff
changeset
|
94 return isKind(FrameSlotKind.Boolean); |
136df94b5aa8
SL: updated outdated implementation of write local variable nodes in SL.
Christian Humer <christian.humer@gmail.com>
parents:
12405
diff
changeset
|
95 } |
136df94b5aa8
SL: updated outdated implementation of write local variable nodes in SL.
Christian Humer <christian.humer@gmail.com>
parents:
12405
diff
changeset
|
96 |
13821
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
97 private boolean isKind(FrameSlotKind kind) { |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
98 if (getSlot().getKind() == kind) { |
13836
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
99 /* Success: the frame slot has the expected kind. */ |
13821
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
100 return true; |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
101 } else if (getSlot().getKind() == FrameSlotKind.Illegal) { |
13836
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
102 /* |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
103 * This is the first write to this local variable. We can set the type to the one we |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
104 * expect. Since the variable type is important when the compiler optimizes a method, we |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
105 * also discard compiled code. |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
106 */ |
13821
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
107 CompilerDirectives.transferToInterpreterAndInvalidate(); |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
108 getSlot().setKind(kind); |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
109 return true; |
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
110 } else { |
13836
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
111 /* |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
112 * Failure: the frame slot has the wrong kind, the Truffle DSL generated code will |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
113 * choose a different specialization. |
64c77f0577bb
More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13821
diff
changeset
|
114 */ |
13821
b16ec83edc73
Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13761
diff
changeset
|
115 return false; |
13359
136df94b5aa8
SL: updated outdated implementation of write local variable nodes in SL.
Christian Humer <christian.humer@gmail.com>
parents:
12405
diff
changeset
|
116 } |
136df94b5aa8
SL: updated outdated implementation of write local variable nodes in SL.
Christian Humer <christian.humer@gmail.com>
parents:
12405
diff
changeset
|
117 } |
7503
31da1716950f
Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff
changeset
|
118 } |