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comparison graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/SLRootNode.java @ 18162:ab62800259ff

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Truffle: renamed the splitting to callTargetCloning. Made RootNode cloning an implementation detail of the Truffle runtime.
author Christian Humer <christian.humer@gmail.com>
date Thu, 23 Oct 2014 17:20:10 +0200
parents e9c119927199
children c88ab4f1f04a
comparison
equal deleted inserted replaced
18161:94f16a759646 18162:ab62800259ff
39 public final class SLRootNode extends RootNode { 39 public final class SLRootNode extends RootNode {
40 40
41 /** The function body that is executed, and specialized during execution. */ 41 /** The function body that is executed, and specialized during execution. */
42 @Child private SLExpressionNode bodyNode; 42 @Child private SLExpressionNode bodyNode;
43 43
44 /**
45 * A copy of the uninitialized body. When performing method inlining, it is beneficial to inline
46 * the unspecialized function body, so that it is specialized in the context of the caller. This
47 * makes the specializations of the inlined function more precise.
48 */
49 private final SLExpressionNode uninitializedBodyNode;
50
51 /** The name of the function, for printing purposes only. */ 44 /** The name of the function, for printing purposes only. */
52 private final String name; 45 private final String name;
53 46
54 /** The Simple execution context for this tree **/ 47 /** The Simple execution context for this tree **/
55 private final SLContext context; 48 private final SLContext context;
56 49
57 @CompilationFinal private boolean isSplittable; 50 @CompilationFinal private boolean isCloningAllowed;
58 51
59 public SLRootNode(SLContext context, FrameDescriptor frameDescriptor, SLExpressionNode bodyNode, String name) { 52 public SLRootNode(SLContext context, FrameDescriptor frameDescriptor, SLExpressionNode bodyNode, String name) {
60 super(null, frameDescriptor); 53 super(null, frameDescriptor);
61 /* Deep copy the body before any specialization occurs during execution. */
62 this.uninitializedBodyNode = NodeUtil.cloneNode(bodyNode);
63 this.bodyNode = bodyNode; 54 this.bodyNode = bodyNode;
64 this.name = name; 55 this.name = name;
65 this.context = context; 56 this.context = context;
66 } 57 }
67 58
72 63
73 public String getName() { 64 public String getName() {
74 return name; 65 return name;
75 } 66 }
76 67
77 public void setSplittable(boolean isSplittable) { 68 public void setCloningAllowed(boolean isCloningAllowed) {
78 this.isSplittable = isSplittable; 69 this.isCloningAllowed = isCloningAllowed;
79 } 70 }
80 71
81 public SLExpressionNode getBodyNode() { 72 public SLExpressionNode getBodyNode() {
82 return bodyNode; 73 return bodyNode;
83 } 74 }
84 75
85 @Override 76 @Override
86 public boolean isSplittable() { 77 public boolean isCloningAllowed() {
87 return isSplittable; 78 return isCloningAllowed;
88 }
89
90 @Override
91 public RootNode split() {
92 return new SLRootNode(this.context, getFrameDescriptor().shallowCopy(), NodeUtil.cloneNode(uninitializedBodyNode), name);
93 } 79 }
94 80
95 @Override 81 @Override
96 public String toString() { 82 public String toString() {
97 return "root " + name; 83 return "root " + name;