/*
* Copyright (c) 2011, 2011, 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.max.graal.examples.inlining;
public class InliningExample {
public static void run() {
System.out.println();
System.out.println();
System.out.println("Running Inlining Example");
long start = System.currentTimeMillis();
System.out.println("result1=" + test());
System.out.println("result2=" + testFib());
System.out.println("time=" + (System.currentTimeMillis() - start) + "ms");
}
private static int test() {
return alwaysInline(30);
}
public static int testFib() {
int sum = 0;
for (int i = 0; i < 100000000; ++i) {
sum += fib(5);
}
return sum;
}
public static int alwaysInline(int value) {
if (value == 0) {
return neverInline(value);
}
return alwaysInline(value - 1);
}
public static int neverInline(int value) {
if (value == 0) {
return 0;
}
return neverInline(value - 1);
}
public static int fib(int val) {
if (val == 0 || val == 1) {
return 1;
}
return fib(val - 1) + fib(val - 2);
}
}