/* * Copyright (c) 2022, 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 org.openjdk.bench.vm.compiler; import org.openjdk.jmh.annotations.*; import org.openjdk.jmh.infra.Blackhole; import java.util.concurrent.TimeUnit; @BenchmarkMode(Mode.AverageTime) @OutputTimeUnit(TimeUnit.NANOSECONDS) @Measurement(iterations = 5, time = 1000, timeUnit = TimeUnit.MILLISECONDS) @Warmup(iterations = 5, time = 1000, timeUnit = TimeUnit.MILLISECONDS) @Fork(3) public class MulNodeIdealize { private static final int SIZE = 50; @Benchmark public void testMul2Float(Blackhole blackhole) { for (float i = 0; i < SIZE; i++) { blackhole.consume(i * 2); } } @Benchmark public void testMul2Double(Blackhole blackhole) { for (double i = 0; i < SIZE; i++) { blackhole.consume(i * 2); } } }