1 /*
   2  * Copyright (c) 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  * @test
  26  * @bug 8152341
  27  * @requires (vm.arch == "x64" | vm.arch == "sparcv9" | vm.arch == "arm64")
  28  * @library /testlibrary /test/lib /compiler/jvmci/jdk.vm.ci.hotspot.test/src
  29  * @modules jdk.vm.ci/jdk.vm.ci.meta
  30  *          jdk.vm.ci/jdk.vm.ci.common
  31  *          jdk.vm.ci/jdk.vm.ci.runtime
  32  *          jdk.vm.ci/jdk.vm.ci.hotspot
  33  *          java.base/jdk.internal.misc
  34  * @run testng/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  35  *      jdk.vm.ci.hotspot.test.MemoryAccessProviderTest
  36  */
  37 
  38 package jdk.vm.ci.hotspot.test;
  39 
  40 import jdk.vm.ci.meta.Constant;
  41 import org.testng.annotations.Test;
  42 import org.testng.Assert;
  43 import jdk.vm.ci.meta.JavaConstant;
  44 import jdk.vm.ci.meta.JavaKind;
  45 import jdk.vm.ci.meta.MemoryAccessProvider;
  46 import jdk.vm.ci.runtime.JVMCI;
  47 
  48 public class MemoryAccessProviderTest {
  49     private static final MemoryAccessProvider PROVIDER = JVMCI.getRuntime().getHostJVMCIBackend().getConstantReflection().getMemoryAccessProvider();
  50 
  51     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class)
  52     public void testPositiveReadUnsafeConstant(JavaKind kind, JavaConstant base, Long offset, Object expected, int bitsCount) {
  53         Assert.assertEquals(PROVIDER.readUnsafeConstant(kind, base, offset), expected, "Failed to read constant");
  54     }
  55 
  56     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
  57     public void testReadUnsafeConstantNullBase(JavaKind kind, JavaConstant base, Long offset, Object expected, int bitsCount) {
  58         PROVIDER.readUnsafeConstant(kind, null, offset);
  59     }
  60 
  61     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
  62     public void testNegativeReadUnsafeConstantNullKind(JavaKind kind, JavaConstant base, Long offset, Object expected, int bitsCount) {
  63         Assert.assertNull(PROVIDER.readUnsafeConstant(null, base, offset), "Expected null return");
  64     }
  65 
  66     @Test(dataProvider = "negative", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
  67     public void testNegativeReadUnsafeConstant(JavaKind kind, JavaConstant base) {
  68         PROVIDER.readUnsafeConstant(kind, base, 0L);
  69     }
  70 
  71     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class)
  72     public void testPositiveReadPrimitiveConstant(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
  73         Assert.assertEquals(PROVIDER.readPrimitiveConstant(kind, base, offset, bitsCount), expected, "Failed to read constant");
  74     }
  75 
  76     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
  77     public void testReadPrimitiveConstantNullBase(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
  78         Assert.assertNull(PROVIDER.readPrimitiveConstant(kind, null, offset, bitsCount), "Unexpected value for null base");
  79     }
  80 
  81     @Test(dataProvider = "negative", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
  82     public void testNegativeReadPrimitiveConstant(JavaKind kind, Constant base) {
  83         PROVIDER.readPrimitiveConstant(kind, base, 0L, kind == null ? 0 : kind.getBitCount());
  84     }
  85 
  86     @Test(dataProvider = "positiveObject", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
  87     public void testObjectReadPrimitiveConstant(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
  88         PROVIDER.readPrimitiveConstant(kind, base, 0L, bitsCount);
  89     }
  90 
  91     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
  92     public void testReadPrimitiveConstantLessBits(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
  93         PROVIDER.readPrimitiveConstant(kind, base, offset, bitsCount - 1);
  94     }
  95 
  96     @Test(dataProvider = "positiveObject", dataProviderClass = MemoryAccessProviderData.class)
  97     public void testPositiveReadObjectConstant(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
  98         Assert.assertEquals(PROVIDER.readObjectConstant(base, offset), expected, "Unexpected result");
  99     }
 100 
 101     @Test(dataProvider = "positiveObject", dataProviderClass = MemoryAccessProviderData.class)
 102     public void testNegativeReadObjectConstantNullBase(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
 103         Assert.assertNull(PROVIDER.readObjectConstant(null, offset), "Unexpected return");
 104     }
 105 
 106     @Test(dataProvider = "positiveObject", dataProviderClass = MemoryAccessProviderData.class)
 107     public void testNegativeReadObjectConstantWrongOffset(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
 108         Assert.assertNull(PROVIDER.readObjectConstant(base, offset + 1), "Expected null");
 109     }
 110 
 111     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class)
 112     public void testNegativeReadObjectConstantPrimitiveBase(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
 113         Assert.assertNull(PROVIDER.readObjectConstant(base, offset), "Expected null");
 114     }
 115 }