97 lines
3.9 KiB
Java
97 lines
3.9 KiB
Java
/*
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* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @key randomness
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* @summary Verify that results of computations are the same w/
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* and w/o usage of BZHI instruction
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* @library /test/lib /
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* @modules java.base/jdk.internal.misc
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* java.management
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* @build jdk.test.whitebox.WhiteBox
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* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
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* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
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* -XX:+WhiteBoxAPI compiler.intrinsics.bmi.TestBzhiI2L
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*/
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package compiler.intrinsics.bmi;
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import jdk.test.lib.Platform;
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import jdk.test.whitebox.cpuinfo.CPUInfo;
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public class TestBzhiI2L {
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public static void main(String args[]) throws Throwable {
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if (Platform.isX86()) {
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System.out.println("INFO: Bzhiq not implemented for x86_32, test SKIPPED" );
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return;
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}
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if (!CPUInfo.hasFeature("bmi2")) {
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System.out.println("INFO: CPU does not support bmi2 feature, test SKIPPED" );
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return;
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}
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BMITestRunner.runTests(BzhiI2LExpr.class, args,
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"-XX:+IgnoreUnrecognizedVMOptions",
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"-XX:+UseBMI2Instructions");
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BMITestRunner.runTests(BzhiI2LCommutativeExpr.class, args,
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"-XX:+IgnoreUnrecognizedVMOptions",
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"-XX:+UseBMI2Instructions");
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}
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public static class BzhiI2LExpr extends Expr.BMIUnaryIntToLongExpr {
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public long intToLongExpr(int src1) {
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int value = src1;
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long returnValue = 0L;
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for(int i = 0; i < 10000; ++i) {
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returnValue =
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(long)(value & 0x1) ^ (long)(value & 0x3) ^ (long)(value & 0x7) ^ (long)(value & 0xF) ^
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(long)(value & 0x1F) ^ (long)(value & 0x3F) ^ (long)(value & 0x7F) ^ (long)(value & 0xFF) ^
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(long)(value & 0x1FF) ^ (long)(value & 0x3FF) ^ (long)(value & 0x7FF) ^ (long)(value & 0xFFF) ^
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(long)(value & 0x1FFF) ^ (long)(value & 0x3FFF) ^ (long)(value & 0x7FFF) ^ (long)(value & 0xFFFF);
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}
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return returnValue;
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}
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}
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public static class BzhiI2LCommutativeExpr extends Expr.BMIUnaryIntToLongExpr {
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public long intToLongExpr(int src1) {
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int value = src1;
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long returnValue = 0L;
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for(int i = 0; i < 10000; ++i) {
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returnValue =
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(long)(value & 0x1) ^ (long)(value & 0x3) ^ (long)(value & 0x7) ^ (long)(value & 0xF) ^
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(long)(value & 0x1F) ^ (long)(value & 0x3F) ^ (long)(value & 0x7F) ^ (long)(value & 0xFF) ^
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(long)(value & 0x1FF) ^ (long)(value & 0x3FF) ^ (long)(value & 0x7FF) ^ (long)(value & 0xFFF) ^
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(long)(value & 0x1FFF) ^ (long)(value & 0x3FFF) ^ (long)(value & 0x7FFF) ^ (long)(value & 0xFFFF);
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}
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return returnValue;
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}
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}
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}
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