Mercurial > hg > truffle
view graal/com.oracle.graal.graph/src/com/oracle/graal/graph/NodeStack.java @ 20091:1bc27c390bce
add InlineIntrinsicsDuringParsing option with a default value of true
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 30 Mar 2015 17:51:05 +0200 |
parents | f388e1591799 |
children |
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/* * Copyright (c) 2015, 2015, 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.graal.graph; public class NodeStack { private static final int INITIAL_SIZE = 8; protected Node[] values; protected int tos; public NodeStack() { values = new Node[INITIAL_SIZE]; } public void push(Node n) { int newIndex = tos++; int valuesLength = values.length; if (newIndex >= valuesLength) { Node[] newValues = new Node[valuesLength << 1]; System.arraycopy(values, 0, newValues, 0, valuesLength); values = newValues; } values[newIndex] = n; } public Node pop() { assert tos > 0 : "stack must be non-empty"; return values[--tos]; } public Node peek() { assert tos > 0 : "stack must be non-empty"; return values[tos - 1]; } public boolean isEmpty() { return tos == 0; } }