Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/SLRootNode.java @ 15027:0ab4e4a0e4bd
AbstractBytecodeParser: fix usage of AbstractFrameStateBuilder.
author | Josef Eisl <josef.eisl@jku.at> |
---|---|
date | Mon, 07 Apr 2014 16:13:53 +0200 |
parents | a08b8694f556 |
children | 111bf82514ca |
line wrap: on
line source
/* * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.truffle.sl.nodes; import com.oracle.truffle.api.frame.*; import com.oracle.truffle.api.nodes.*; import com.oracle.truffle.sl.builtins.*; import com.oracle.truffle.sl.nodes.controlflow.*; /** * The root of all SL execution trees. It is a Truffle requirement that the tree root extends the * class {@link RootNode}. This class is used for both builtin and user-defined functions. For * builtin functions, the {@link #bodyNode} is a subclass of {@link SLBuiltinNode}. For user-defined * functions, the {@link #bodyNode} is a {@link SLFunctionBodyNode}. */ public final class SLRootNode extends RootNode { /** The function body that is executed, and specialized during execution. */ @Child private SLExpressionNode bodyNode; /** * A copy of the uninitialized body. When performing method inlining, it is beneficial to inline * the unspecialized function body, so that it is specialized in the context of the caller. This * makes the specializations of the inlined function more precise. */ private final SLExpressionNode uninitializedBodyNode; /** The name of the function, for printing purposes only. */ private final String name; public SLRootNode(FrameDescriptor frameDescriptor, SLExpressionNode bodyNode, String name) { super(null, frameDescriptor); /* Deep copy the body before any specialization occurs during execution. */ this.uninitializedBodyNode = NodeUtil.cloneNode(bodyNode); this.bodyNode = bodyNode; this.name = name; } @Override public Object execute(VirtualFrame frame) { return bodyNode.executeGeneric(frame); } @Override public boolean isSplittable() { return true; } @Override public RootNode split() { return new SLRootNode(getFrameDescriptor().shallowCopy(), NodeUtil.cloneNode(uninitializedBodyNode), name); } @Override public String toString() { return "root " + name; } }