| /* |
| * Copyright (c) 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. |
| * |
| */ |
| |
| /** |
| * @test |
| * @bug 8031321 |
| * @summary Verify that results of computations are the same w/ |
| * and w/o usage of BLSMSK instruction |
| * @library /testlibrary /../../test/lib |
| * @build TestBlsmskL BMITestRunner Expr |
| * @run main ClassFileInstaller sun.hotspot.WhiteBox |
| * sun.hotspot.WhiteBox$WhiteBoxPermission |
| * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions |
| * -XX:+WhiteBoxAPI TestBlsmskL |
| */ |
| |
| import sun.hotspot.cpuinfo.CPUInfo; |
| |
| public class TestBlsmskL { |
| |
| public static void main(String args[]) throws Throwable { |
| if (!CPUInfo.hasFeature("bmi1")) { |
| System.out.println("INFO: CPU does not support bmi1 feature."); |
| } |
| |
| BMITestRunner.runTests(BlsmskLExpr.class, args, |
| "-XX:+IgnoreUnrecognizedVMOptions", |
| "-XX:+UseBMI1Instructions"); |
| BMITestRunner.runTests(BlsmskLCommutativeExpr.class, args, |
| "-XX:+IgnoreUnrecognizedVMOptions", |
| "-XX:+UseBMI1Instructions"); |
| } |
| |
| public static class BlsmskLExpr |
| extends Expr.BMIUnaryLongExpr { |
| |
| public long longExpr(long src) { |
| return (src - 1) ^ src; |
| } |
| |
| public long longExpr(Expr.MemL src) { |
| return (src.value - 1) ^ src.value; |
| } |
| |
| } |
| |
| public static class BlsmskLCommutativeExpr |
| extends Expr.BMIUnaryLongExpr { |
| |
| public long longExpr(long src) { |
| return src ^ (src - 1); |
| } |
| |
| public long longExpr(Expr.MemL src) { |
| return src.value ^ (src.value - 1); |
| } |
| |
| } |
| |
| } |