Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/controlflow/SLBlockNode.java @ 15128:d0e2d565176f
BaselineCompiler: copy frame state builder at loop headers.
author | Josef Eisl <josef.eisl@jku.at> |
---|---|
date | Tue, 15 Apr 2014 20:35:52 +0200 |
parents | a08b8694f556 |
children | 111bf82514ca |
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/* * 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.controlflow; import com.oracle.truffle.api.*; import com.oracle.truffle.api.frame.*; import com.oracle.truffle.api.nodes.*; import com.oracle.truffle.sl.nodes.*; /** * A statement node that just executes a list of other statements. */ @NodeInfo(shortName = "block") public final class SLBlockNode extends SLStatementNode { /** * The array of child nodes. The annotation {@link com.oracle.truffle.api.nodes.Node.Children * Children} informs Truffle that the field contains multiple children. It is a Truffle * requirement that the field is {@code final} and an array of nodes. */ @Children private final SLStatementNode[] bodyNodes; public SLBlockNode(SLStatementNode[] bodyNodes) { /* * It is a Truffle requirement to call adoptChildren(), which performs all the necessary * steps to add the new children to the node tree. */ this.bodyNodes = bodyNodes; } /** * Execute all child statements. The annotation {@link ExplodeLoop} triggers full unrolling of * the loop during compilation. This allows the {@link SLStatementNode#executeVoid} method of * all children to be inlined. */ @Override @ExplodeLoop public void executeVoid(VirtualFrame frame) { /* * This assertion illustrates that the arryay length is really a constant during * compilation. */ CompilerAsserts.compilationConstant(bodyNodes.length); for (SLStatementNode statement : bodyNodes) { statement.executeVoid(frame); } } }