1 /*
2 * Copyright (c) 2015, 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 package org.graalvm.compiler.replacements.test;
24
25 import static org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin.InlineInfo.createStandardInlineInfo;
26
27 import org.graalvm.compiler.core.common.type.StampFactory;
28 import org.graalvm.compiler.core.test.GraalCompilerTest;
29 import org.graalvm.compiler.debug.DebugContext;
30 import org.graalvm.compiler.nodes.AbstractBeginNode;
31 import org.graalvm.compiler.nodes.StructuredGraph;
32 import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions;
33 import org.graalvm.compiler.nodes.ValueNode;
34 import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration;
35 import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext;
36 import org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin;
37 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin;
38 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins;
39 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins.Registration;
40 import org.graalvm.compiler.nodes.memory.HeapAccess.BarrierType;
41 import org.graalvm.compiler.nodes.memory.ReadNode;
42 import org.graalvm.compiler.nodes.memory.address.AddressNode;
43 import org.graalvm.compiler.nodes.memory.address.OffsetAddressNode;
44 import org.graalvm.compiler.phases.OptimisticOptimizations;
45 import org.graalvm.compiler.phases.common.CanonicalizerPhase;
46 import org.graalvm.compiler.phases.tiers.PhaseContext;
47 import org.graalvm.compiler.replacements.CachingPEGraphDecoder;
48 import org.graalvm.word.LocationIdentity;
49 import org.junit.Test;
50
51 import jdk.vm.ci.meta.JavaKind;
52 import jdk.vm.ci.meta.ResolvedJavaMethod;
53
54 public class PEGraphDecoderTest extends GraalCompilerTest {
55
56 /**
57 * This method is intrinsified to a node with a guard dependency on the block it is in. The
58 * various tests ensure that this guard is correctly updated when blocks are merged during
59 * inlining.
60 */
61 private static native int readInt(Object obj, long offset);
62
63 private static boolean flag;
64 private static int value;
65
66 private static void invokeSimple() {
67 value = 111;
68 }
69
70 private static void invokeComplicated() {
71 if (flag) {
72 value = 0;
73 } else {
74 value = 42;
75 }
76 }
77
78 private static int readInt1(Object obj) {
79 return readInt(obj, 16);
80 }
81
82 private static int readInt2(Object obj) {
83 invokeSimple();
84 return readInt(obj, 16);
85 }
86
87 private static int readInt3(Object obj) {
88 invokeComplicated();
89 return readInt(obj, 16);
90 }
91
92 private static int readInt4(Object obj, int n) {
93 if (n > 0) {
94 invokeComplicated();
95 }
96 return readInt(obj, 16);
97 }
98
99 public static int doTest(Object obj) {
100 int result = 0;
101 result += readInt1(obj);
102 result += readInt2(obj);
103 result += readInt3(obj);
104 result += readInt4(obj, 2);
105 return result;
106 }
107
108 private static void registerPlugins(InvocationPlugins plugins) {
109 Registration r = new Registration(plugins, PEGraphDecoderTest.class);
110 r.register2("readInt", Object.class, long.class, new InvocationPlugin() {
111 @Override
112 public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver unused, ValueNode obj, ValueNode offset) {
113 AddressNode address = b.add(new OffsetAddressNode(obj, offset));
114 ReadNode read = b.addPush(JavaKind.Int, new ReadNode(address, LocationIdentity.any(), StampFactory.forKind(JavaKind.Int), BarrierType.NONE));
115 read.setGuard(AbstractBeginNode.prevBegin(read));
116 return true;
117 }
118 });
119 }
120
121 class InlineAll implements InlineInvokePlugin {
122 @Override
123 public InlineInfo shouldInlineInvoke(GraphBuilderContext b, ResolvedJavaMethod method, ValueNode[] args) {
124 return createStandardInlineInfo(method);
125 }
126 }
127
128 @Test
129 @SuppressWarnings("try")
130 public void test() {
131 ResolvedJavaMethod testMethod = getResolvedJavaMethod(PEGraphDecoderTest.class, "doTest", Object.class);
132 StructuredGraph targetGraph = null;
133 DebugContext debug = getDebugContext();
134 try (DebugContext.Scope scope = debug.scope("GraphPETest", testMethod)) {
135 GraphBuilderConfiguration graphBuilderConfig = GraphBuilderConfiguration.getDefault(getDefaultGraphBuilderPlugins()).withEagerResolving(true).withUnresolvedIsError(true);
136 registerPlugins(graphBuilderConfig.getPlugins().getInvocationPlugins());
137 targetGraph = new StructuredGraph.Builder(getInitialOptions(), debug, AllowAssumptions.YES).method(testMethod).build();
138 CachingPEGraphDecoder decoder = new CachingPEGraphDecoder(getTarget().arch, targetGraph, getProviders(), graphBuilderConfig, OptimisticOptimizations.NONE, AllowAssumptions.YES,
139 null, null, new InlineInvokePlugin[]{new InlineAll()}, null, null, null);
140
141 decoder.decode(testMethod);
142 debug.dump(DebugContext.BASIC_LEVEL, targetGraph, "Target Graph");
143 targetGraph.verify();
144
145 PhaseContext context = new PhaseContext(getProviders());
146 new CanonicalizerPhase().apply(targetGraph, context);
147 targetGraph.verify();
148
149 } catch (Throwable ex) {
150 if (targetGraph != null) {
151 debug.dump(DebugContext.BASIC_LEVEL, targetGraph, ex.toString());
152 }
153 debug.handle(ex);
154 }
155 }
156 }