1 /*
2 * Copyright (c) 2015, 2018, 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 package org.graalvm.compiler.replacements.test;
26
27 import static org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin.InlineInfo.createStandardInlineInfo;
28
29 import org.graalvm.compiler.core.common.type.StampFactory;
30 import org.graalvm.compiler.core.test.GraalCompilerTest;
31 import org.graalvm.compiler.debug.DebugContext;
32 import org.graalvm.compiler.nodes.AbstractBeginNode;
33 import org.graalvm.compiler.nodes.StructuredGraph;
34 import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions;
35 import org.graalvm.compiler.nodes.ValueNode;
36 import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration;
37 import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext;
38 import org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin;
39 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin;
40 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins;
41 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins.Registration;
42 import org.graalvm.compiler.nodes.memory.HeapAccess.BarrierType;
43 import org.graalvm.compiler.nodes.memory.ReadNode;
44 import org.graalvm.compiler.nodes.memory.address.AddressNode;
45 import org.graalvm.compiler.nodes.memory.address.OffsetAddressNode;
46 import org.graalvm.compiler.nodes.spi.CoreProviders;
47 import org.graalvm.compiler.phases.OptimisticOptimizations;
48 import org.graalvm.compiler.phases.common.CanonicalizerPhase;
49 import org.graalvm.compiler.replacements.CachingPEGraphDecoder;
50 import jdk.internal.vm.compiler.word.LocationIdentity;
51 import org.junit.Test;
52
53 import jdk.vm.ci.meta.JavaKind;
54 import jdk.vm.ci.meta.ResolvedJavaMethod;
55
56 public class PEGraphDecoderTest extends GraalCompilerTest {
57
58 /**
59 * This method is intrinsified to a node with a guard dependency on the block it is in. The
60 * various tests ensure that this guard is correctly updated when blocks are merged during
61 * inlining.
62 */
63 private static native int readInt(Object obj, long offset);
64
65 private static boolean flag;
66 private static int value;
67
68 private static void invokeSimple() {
69 value = 111;
70 }
71
72 private static void invokeComplicated() {
73 if (flag) {
74 value = 0;
75 } else {
76 value = 42;
77 }
78 }
79
80 private static int readInt1(Object obj) {
81 return readInt(obj, 16);
82 }
83
84 private static int readInt2(Object obj) {
85 invokeSimple();
86 return readInt(obj, 16);
87 }
88
89 private static int readInt3(Object obj) {
90 invokeComplicated();
91 return readInt(obj, 16);
92 }
93
94 private static int readInt4(Object obj, int n) {
95 if (n > 0) {
96 invokeComplicated();
97 }
98 return readInt(obj, 16);
99 }
100
101 public static int doTest(Object obj) {
102 int result = 0;
103 result += readInt1(obj);
104 result += readInt2(obj);
105 result += readInt3(obj);
106 result += readInt4(obj, 2);
107 return result;
108 }
109
110 private static void registerPlugins(InvocationPlugins plugins) {
111 Registration r = new Registration(plugins, PEGraphDecoderTest.class);
112 r.register2("readInt", Object.class, long.class, new InvocationPlugin() {
113 @Override
114 public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver unused, ValueNode obj, ValueNode offset) {
115 AddressNode address = b.add(new OffsetAddressNode(obj, offset));
116 ReadNode read = b.addPush(JavaKind.Int, new ReadNode(address, LocationIdentity.any(), StampFactory.forKind(JavaKind.Int), BarrierType.NONE));
117 read.setGuard(AbstractBeginNode.prevBegin(read));
118 return true;
119 }
120 });
121 }
122
123 class InlineAll implements InlineInvokePlugin {
124 @Override
125 public InlineInfo shouldInlineInvoke(GraphBuilderContext b, ResolvedJavaMethod method, ValueNode[] args) {
126 return createStandardInlineInfo(method);
127 }
128 }
129
130 @Test
131 @SuppressWarnings("try")
132 public void test() {
133 ResolvedJavaMethod testMethod = getResolvedJavaMethod(PEGraphDecoderTest.class, "doTest", Object.class);
134 StructuredGraph targetGraph = null;
135 DebugContext debug = getDebugContext();
136 try (DebugContext.Scope scope = debug.scope("GraphPETest", testMethod)) {
137 GraphBuilderConfiguration graphBuilderConfig = GraphBuilderConfiguration.getDefault(getDefaultGraphBuilderPlugins()).withEagerResolving(true).withUnresolvedIsError(true);
138 registerPlugins(graphBuilderConfig.getPlugins().getInvocationPlugins());
139 targetGraph = new StructuredGraph.Builder(getInitialOptions(), debug, AllowAssumptions.YES).method(testMethod).build();
140 CachingPEGraphDecoder decoder = new CachingPEGraphDecoder(getTarget().arch, targetGraph, getProviders(), graphBuilderConfig, OptimisticOptimizations.NONE, AllowAssumptions.YES,
141 null, null, new InlineInvokePlugin[]{new InlineAll()}, null, null, null, null, null);
142
143 decoder.decode(testMethod, false, false);
144 debug.dump(DebugContext.BASIC_LEVEL, targetGraph, "Target Graph");
145 targetGraph.verify();
146
147 CoreProviders context = getProviders();
148 new CanonicalizerPhase().apply(targetGraph, context);
149 targetGraph.verify();
150
151 } catch (Throwable ex) {
152 if (targetGraph != null) {
153 debug.dump(DebugContext.BASIC_LEVEL, targetGraph, ex.toString());
154 }
155 debug.handle(ex);
156 }
157 }
158 }