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  * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9" | os.simpleArch == "aarch64")
  27  * @library /testlibrary /test/lib /compiler/jvmci/jdk.vm.ci.hotspot.test/src
  28  * @modules jdk.vm.ci/jdk.vm.ci.meta
  29  *          jdk.vm.ci/jdk.vm.ci.common
  30  *          jdk.vm.ci/jdk.vm.ci.runtime
  31  *          jdk.vm.ci/jdk.vm.ci.hotspot
  32  * @run testng/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  33  *      jdk.vm.ci.hotspot.test.MemoryAccessProviderTest
  34  */
  35 
  36 package jdk.vm.ci.hotspot.test;
  37 
  38 import jdk.vm.ci.meta.Constant;
  39 import org.testng.annotations.Test;
  40 import org.testng.Assert;
  41 import jdk.vm.ci.meta.JavaConstant;
  42 import jdk.vm.ci.meta.JavaKind;
  43 import jdk.vm.ci.meta.MemoryAccessProvider;
  44 import jdk.vm.ci.runtime.JVMCI;
  45 
  46 public class MemoryAccessProviderTest {
  47     private static final MemoryAccessProvider PROVIDER = JVMCI.getRuntime().getHostJVMCIBackend().getConstantReflection().getMemoryAccessProvider();
  48 
  49     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class)
  50     public void testPositiveReadUnsafeConstant(JavaKind kind,
  51             JavaConstant base, Long offset, Object expected, int bitsCount) {
  52         Assert.assertEquals(PROVIDER.readUnsafeConstant(kind, base, offset),
  53                 expected, "Failed to read constant");
  54     }
  55 
  56     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
  57     public void testReadUnsafeConstantNullBase(JavaKind kind,
  58             JavaConstant base, Long offset, Object expected, int bitsCount) {
  59         PROVIDER.readUnsafeConstant(kind, null, offset);
  60     }
  61 
  62     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class })
  63     public void testNegativeReadUnsafeConstantNullKind(JavaKind kind,
  64             JavaConstant base, Long offset, Object expected, int bitsCount) {
  65         Assert.assertNull(PROVIDER.readUnsafeConstant(null, base, offset), "Expected null return");
  66     }
  67 
  68     @Test(dataProvider = "negative", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class })
  69     public void testNegativeReadUnsafeConstant(JavaKind kind, JavaConstant base) {
  70         PROVIDER.readUnsafeConstant(kind, base, 0L);
  71     }
  72 
  73     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class)
  74     public void testPositiveReadPrimitiveConstant(JavaKind kind, Constant base,
  75             Long offset, Object expected, int bitsCount) {
  76         Assert.assertEquals(
  77                 PROVIDER.readPrimitiveConstant(kind, base, offset, bitsCount),
  78                 expected, "Failed to read constant");
  79     }
  80 
  81     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class })
  82     public void testReadPrimitiveConstantNullBase(JavaKind kind, Constant base,
  83             Long offset, Object expected, int bitsCount) {
  84         Assert.assertNull(
  85                 PROVIDER.readPrimitiveConstant(kind, null, offset, bitsCount),
  86                 "Unexpected value for null base");
  87     }
  88 
  89     @Test(dataProvider = "negative", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class })
  90     public void testNegativeReadPrimitiveConstant(JavaKind kind, Constant base) {
  91         PROVIDER.readPrimitiveConstant(kind, base, 0L, kind == null ? 0 : kind.getBitCount());
  92     }
  93 
  94     @Test(dataProvider = "positiveObject", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class })
  95     public void testObjectReadPrimitiveConstant(JavaKind kind, Constant base,
  96             Long offset, Object expected, int bitsCount) {
  97         PROVIDER.readPrimitiveConstant(kind, base, 0L, bitsCount);
  98     }
  99 
 100     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class })
 101     public void testReadPrimitiveConstantLessBits(JavaKind kind, Constant base,
 102             Long offset, Object expected, int bitsCount) {
 103         PROVIDER.readPrimitiveConstant(kind, base, offset, bitsCount - 1);
 104     }
 105 
 106     @Test(dataProvider = "positiveObject", dataProviderClass = MemoryAccessProviderData.class)
 107     public void testPositiveReadObjectConstant(JavaKind kind, Constant base,
 108             Long offset, Object expected, int bitsCount) {
 109         Assert.assertEquals(PROVIDER.readObjectConstant(base, offset),
 110                 expected, "Unexpected result");
 111     }
 112 
 113     @Test(dataProvider = "positiveObject", dataProviderClass = MemoryAccessProviderData.class)
 114     public void testNegativeReadObjectConstantNullBase(JavaKind kind,
 115             Constant base, Long offset, Object expected, int bitsCount) {
 116         Assert.assertNull(PROVIDER.readObjectConstant(null, offset), "Unexpected return");
 117     }
 118 
 119     @Test(dataProvider = "positiveObject", dataProviderClass = MemoryAccessProviderData.class)
 120     public void testNegativeReadObjectConstantWrongOffset(JavaKind kind,
 121             Constant base, Long offset, Object expected, int bitsCount) {
 122         Assert.assertNull(PROVIDER.readObjectConstant(base, offset + 1), "Expected null");
 123     }
 124 
 125     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class)
 126     public void testNegativeReadObjectConstantPrimitiveBase(JavaKind kind,
 127             Constant base, Long offset, Object expected, int bitsCount) {
 128         Assert.assertNull(PROVIDER.readObjectConstant(base, offset), "Expected null");
 129     }
 130 }