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8240538: [JVMCI] add test for JVMCI ConstantPool class
Reviewed-by: kvn, iignatyev
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Doug Simon committed Mar 6, 2020
1 parent 001b805 commit f456f151cc59f93cefd2279eb23c96d142932190
Showing with 111 additions and 0 deletions.
  1. +111 −0 ...spot/jtreg/compiler/jvmci/jdk.vm.ci.runtime.test/src/jdk/vm/ci/runtime/test/ConstantPoolTest.java
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/*
* Copyright (c) 2020, 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
* @requires vm.jvmci
* @modules jdk.internal.vm.ci/jdk.vm.ci.hotspot:open
* jdk.internal.vm.ci/jdk.vm.ci.runtime
* jdk.internal.vm.ci/jdk.vm.ci.meta
* jdk.internal.vm.ci/jdk.vm.ci.code
* jdk.internal.vm.ci/jdk.vm.ci.common
* @library /compiler/jvmci/jdk.vm.ci.hotspot.test/src
* /compiler/jvmci/jdk.vm.ci.code.test/src
* @run testng/othervm
* -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI -XX:-UseJVMCICompiler
* jdk.vm.ci.runtime.test.ConstantPoolTest
*/
package jdk.vm.ci.runtime.test;

import org.testng.Assert;
import org.testng.annotations.Test;

import jdk.vm.ci.meta.JavaMethod;
import jdk.vm.ci.meta.MetaAccessProvider;
import jdk.vm.ci.meta.ResolvedJavaMethod;
import jdk.vm.ci.meta.ResolvedJavaType;
import jdk.vm.ci.runtime.JVMCI;

public class ConstantPoolTest {

static Object cloneByteArray(byte[] arr) {
return arr.clone();
}

static Object cloneCharArray(char[] arr) {
return arr.clone();
}

static Object cloneShortArray(short[] arr) {
return arr.clone();
}

static Object cloneIntArray(int[] arr) {
return arr.clone();
}

static Object cloneFloatArray(float[] arr) {
return arr.clone();
}

static Object cloneLongArray(long[] arr) {
return arr.clone();
}

static Object cloneDoubleArray(double[] arr) {
return arr.clone();
}

static Object cloneObjectArray(Object[] arr) {
return arr.clone();
}

public static final int ALOAD_0 = 42; // 0x2A
public static final int INVOKEVIRTUAL = 182; // 0xB6

public static int beU2(byte[] data, int bci) {
return ((data[bci] & 0xff) << 8) | (data[bci + 1] & 0xff);
}

public static int beU1(byte[] data, int bci) {
return data[bci] & 0xff;
}

@Test
public void lookupArrayCloneMethodTest() throws Exception {
MetaAccessProvider metaAccess = JVMCI.getRuntime().getHostJVMCIBackend().getMetaAccess();
ResolvedJavaType type = metaAccess.lookupJavaType(ConstantPoolTest.class);
for (ResolvedJavaMethod m : type.getDeclaredMethods()) {
if (m.getName().startsWith("clone")) {
byte[] bytecode = m.getCode();
Assert.assertNotNull(bytecode, m.toString());
Assert.assertEquals(5, bytecode.length, m.toString());
Assert.assertEquals(ALOAD_0, beU1(bytecode, 0), m.toString());
Assert.assertEquals(INVOKEVIRTUAL, beU1(bytecode, 1), m.toString());
int cpi = beU2(bytecode, 2);
JavaMethod callee = m.getConstantPool().lookupMethod(cpi, INVOKEVIRTUAL);
Assert.assertTrue(callee instanceof ResolvedJavaMethod, callee.toString());
}
}
}
}

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