Mercurial > hg > graal-compiler
comparison graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/SLRootNode.java @ 13821:b16ec83edc73
Documentation and more refactoring of Simple Language
author | Christian Wimmer <christian.wimmer@oracle.com> |
---|---|
date | Wed, 29 Jan 2014 20:45:43 -0800 |
parents | 533b21375e58 |
children | 5243fe9a3fbc |
comparison
equal
deleted
inserted
replaced
13820:20e7727588e8 | 13821:b16ec83edc73 |
---|---|
1 /* | 1 /* |
2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | 4 * |
5 * This code is free software; you can redistribute it and/or modify it | 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 | 6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
20 * or visit www.oracle.com if you need additional information or have any | 20 * or visit www.oracle.com if you need additional information or have any |
21 * questions. | 21 * questions. |
22 */ | 22 */ |
23 package com.oracle.truffle.sl.nodes; | 23 package com.oracle.truffle.sl.nodes; |
24 | 24 |
25 import com.oracle.truffle.api.*; | |
26 import com.oracle.truffle.api.dsl.*; | |
27 import com.oracle.truffle.api.frame.*; | 25 import com.oracle.truffle.api.frame.*; |
28 import com.oracle.truffle.api.nodes.*; | 26 import com.oracle.truffle.api.nodes.*; |
29 import com.oracle.truffle.sl.builtins.*; | 27 import com.oracle.truffle.sl.builtins.*; |
30 import com.oracle.truffle.sl.nodes.controlflow.*; | 28 import com.oracle.truffle.sl.nodes.controlflow.*; |
31 import com.oracle.truffle.sl.nodes.local.*; | |
32 import com.oracle.truffle.sl.runtime.*; | |
33 | 29 |
30 /** | |
31 * The root of all SL execution trees. It is a Truffle requirement that the tree root extends the | |
32 * class {@link RootNode}. This class is used for both builtin and user-defined functions. For | |
33 * builtin functions, the {@link #bodyNode} is a subclass of {@link SLBuiltinNode}. For user-defined | |
34 * functions, the {@link #bodyNode} is a {@link SLFunctionBodyNode}. | |
35 */ | |
34 public final class SLRootNode extends RootNode { | 36 public final class SLRootNode extends RootNode { |
35 | 37 |
36 @Child private SLExpressionNode body; | 38 /** The function body that is executed, and specialized during execution. */ |
39 @Child private SLExpressionNode bodyNode; | |
37 | 40 |
38 private final SLExpressionNode uninitializedBody; | 41 /** |
42 * A copy of the uninitialized body. When performing method inlining, it is beneficial to inline | |
43 * the unspecialized function body, so that it is specialized in the context of the caller. This | |
44 * makes the specializations of the inlined function more precise. | |
45 */ | |
46 private final SLExpressionNode uninitializedBodyNode; | |
47 | |
48 /** The name of the function, for printing purposes only. */ | |
39 private final String name; | 49 private final String name; |
40 private final boolean inlineImmediatly; | |
41 | 50 |
42 public static RootCallTarget createFunction(String name, FrameDescriptor frameDescriptor, SLStatementNode body) { | 51 public SLRootNode(FrameDescriptor frameDescriptor, SLExpressionNode bodyNode, String name) { |
43 SLFunctionBodyNode bodyContainer = new SLFunctionBodyNode(frameDescriptor, body); | |
44 SLRootNode root = new SLRootNode(frameDescriptor, bodyContainer, name, false); | |
45 return Truffle.getRuntime().createCallTarget(root); | |
46 } | |
47 | |
48 public static RootCallTarget createBuiltin(SLContext context, NodeFactory<? extends SLBuiltinNode> factory, String name) { | |
49 int argumentCount = factory.getExecutionSignature().size(); | |
50 SLExpressionNode[] arguments = new SLExpressionNode[argumentCount]; | |
51 for (int i = 0; i < arguments.length; i++) { | |
52 arguments[i] = new SLReadArgumentNode(i); | |
53 } | |
54 SLBuiltinNode buitinBody = factory.createNode(arguments, context); | |
55 SLRootNode root = new SLRootNode(new FrameDescriptor(), buitinBody, name, true); | |
56 return Truffle.getRuntime().createCallTarget(root); | |
57 } | |
58 | |
59 private SLRootNode(FrameDescriptor frameDescriptor, SLExpressionNode body, String name, boolean inlineImmediatly) { | |
60 super(null, frameDescriptor); | 52 super(null, frameDescriptor); |
61 this.uninitializedBody = NodeUtil.cloneNode(body); | 53 /* Deep copy the body before any specialization occurs during execution. */ |
62 this.body = adoptChild(body); | 54 this.uninitializedBodyNode = NodeUtil.cloneNode(bodyNode); |
55 this.bodyNode = adoptChild(bodyNode); | |
63 this.name = name; | 56 this.name = name; |
64 this.inlineImmediatly = inlineImmediatly; | |
65 } | 57 } |
66 | 58 |
67 @Override | 59 @Override |
68 public Object execute(VirtualFrame frame) { | 60 public Object execute(VirtualFrame frame) { |
69 return body.executeGeneric(frame); | 61 return bodyNode.executeGeneric(frame); |
70 } | |
71 | |
72 public boolean isInlineImmediatly() { | |
73 return inlineImmediatly; | |
74 } | 62 } |
75 | 63 |
76 @Override | 64 @Override |
77 public RootNode inline() { | 65 public RootNode inline() { |
78 return new SLRootNode(getFrameDescriptor().shallowCopy(), NodeUtil.cloneNode(uninitializedBody), name, inlineImmediatly); | 66 return new SLRootNode(getFrameDescriptor().shallowCopy(), NodeUtil.cloneNode(uninitializedBodyNode), name); |
79 } | 67 } |
80 | 68 |
81 @Override | 69 @Override |
82 public int getInlineNodeCount() { | 70 public int getInlineNodeCount() { |
83 return NodeUtil.countNodes(uninitializedBody); | 71 return NodeUtil.countNodes(uninitializedBodyNode); |
84 } | 72 } |
85 | 73 |
86 @Override | 74 @Override |
87 public boolean isInlinable() { | 75 public boolean isInlinable() { |
88 return true; | 76 return true; |
89 } | 77 } |
90 | 78 |
91 public Node getUninitializedBody() { | |
92 return uninitializedBody; | |
93 } | |
94 | |
95 @Override | 79 @Override |
96 public String toString() { | 80 public String toString() { |
97 return "function " + name; | 81 return "root " + name; |
98 } | 82 } |
99 } | 83 } |