TestBlsiL.java revision 11833:1cbffa2beba6
1/* 2 * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25/** 26 * @test 27 * @bug 8031321 28 * @summary Verify that results of computations are the same w/ 29 * and w/o usage of BLSI instruction 30 * @library /test/lib / 31 * @modules java.base/jdk.internal.misc 32 * java.management 33 * 34 * @build sun.hotspot.WhiteBox 35 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 36 * sun.hotspot.WhiteBox$WhiteBoxPermission 37 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 38 * -XX:+WhiteBoxAPI 39 * compiler.intrinsics.bmi.TestBlsiL 40 */ 41 42package compiler.intrinsics.bmi; 43 44import sun.hotspot.cpuinfo.CPUInfo; 45 46public class TestBlsiL { 47 48 public static void main(String args[]) throws Throwable { 49 if (!CPUInfo.hasFeature("bmi1")) { 50 System.out.println("INFO: CPU does not support bmi1 feature."); 51 } 52 53 BMITestRunner.runTests(BlsiLExpr.class, args, 54 "-XX:+IgnoreUnrecognizedVMOptions", 55 "-XX:+UseBMI1Instructions"); 56 BMITestRunner.runTests(BlsiLCommutativeExpr.class, args, 57 "-XX:+IgnoreUnrecognizedVMOptions", 58 "-XX:+UseBMI1Instructions"); 59 } 60 61 public static class BlsiLExpr extends Expr.BMIUnaryLongExpr { 62 63 public long longExpr(long src) { 64 return -src & src; 65 } 66 67 public long longExpr(Expr.MemL src) { 68 return -src.value & src.value; 69 } 70 71 } 72 73 public static class BlsiLCommutativeExpr extends Expr.BMIUnaryLongExpr { 74 75 public long longExpr(long src) { 76 return src & -src; 77 } 78 79 public long longExpr(Expr.MemL src) { 80 return src.value & -src.value; 81 } 82 83 } 84 85} 86