1 /*
2 * Copyright (c) 2016, 2017, 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.nodes.test;
24
25 import java.util.function.Function;
26
27 import org.junit.Assert;
28 import org.junit.Test;
29
30 import org.graalvm.compiler.core.test.GraalCompilerTest;
31 import org.graalvm.compiler.nodes.ConstantNode;
32 import org.graalvm.compiler.nodes.LogicNode;
33 import org.graalvm.compiler.nodes.ShortCircuitOrNode;
34 import org.graalvm.compiler.nodes.StructuredGraph;
35 import org.graalvm.compiler.nodes.ValueNode;
36 import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions;
37 import org.graalvm.compiler.nodes.calc.ConditionalNode;
38 import org.graalvm.compiler.nodes.calc.IntegerEqualsNode;
39 import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration.Plugins;
40 import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext;
41 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin;
42 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins.Registration;
43 import org.graalvm.compiler.phases.common.CanonicalizerPhase;
44 import org.graalvm.compiler.phases.tiers.PhaseContext;
45
46 import jdk.vm.ci.meta.JavaKind;
47 import jdk.vm.ci.meta.ResolvedJavaMethod;
48
49 public class ShortCircuitOrNodeTest extends GraalCompilerTest {
50
51 static boolean shortCircuitOr(boolean b1, boolean b2) {
52 return b1 || b2;
53 }
54
55 @Override
56 protected Plugins getDefaultGraphBuilderPlugins() {
57 Plugins plugins = super.getDefaultGraphBuilderPlugins();
58 Registration r = new Registration(plugins.getInvocationPlugins(), ShortCircuitOrNodeTest.class);
59 r.register2("shortCircuitOr", boolean.class, boolean.class, new InvocationPlugin() {
60 @Override
61 public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver, ValueNode b1, ValueNode b2) {
62 LogicNode x = b.add(new IntegerEqualsNode(b1, b.add(ConstantNode.forInt(1))));
63 LogicNode y = b.add(new IntegerEqualsNode(b2, b.add(ConstantNode.forInt(1))));
64 ShortCircuitOrNode compare = b.add(new ShortCircuitOrNode(x, false, y, false, 0.5));
65 b.addPush(JavaKind.Boolean, new ConditionalNode(compare, b.add(ConstantNode.forBoolean(true)), b.add(ConstantNode.forBoolean(false))));
66 return true;
67 }
68 });
69
70 return plugins;
71 }
72
73 public static int testSharedConditionSnippet(Object o) {
74 boolean b2 = o != null;
75 boolean b1 = o instanceof Function;
76 if (b1) {
77 if (shortCircuitOr(b1, b2)) {
78 return 4;
79 } else {
80 return 3;
81 }
82 }
83 return 1;
84 }
85
86 @Test
87 public void testSharedCondition() {
88 test("testSharedConditionSnippet", "String");
89 }
90
91 private int testInputCombinations(String snippet) {
92 int trueCount = 0;
93 for (int i = 0; i < 4; ++i) {
94 boolean aValue = (i <= 1);
95 boolean bValue = ((i % 2) == 0);
96 boolean returnValue = (boolean) test(snippet, new Object[]{aValue, bValue}).returnValue;
97
98 if (returnValue) {
99 trueCount++;
100 }
101 }
102
103 return trueCount;
104 }
105
106 public boolean testSimpleSnippet(boolean a, boolean b) {
107 return shortCircuitOr(a, b);
108 }
109
110 @Test
111 public void testSimple() {
112 testInputCombinations("testSimpleSnippet");
113 }
114
115 public static boolean testCascadeSnippet1(boolean a, boolean b) {
116 return shortCircuitOr(shortCircuitOr(a, b), a);
117 }
118
119 public static boolean testCascadeSnippet2(boolean a, boolean b) {
120 return shortCircuitOr(shortCircuitOr(b, a), a);
121 }
122
123 public static boolean testCascadeSnippet3(boolean a, boolean b) {
124 return shortCircuitOr(a, shortCircuitOr(a, b));
125 }
126
127 public static boolean testCascadeSnippet4(boolean a, boolean b) {
128 return shortCircuitOr(a, shortCircuitOr(b, a));
129 }
130
131 public static boolean testCascadeSnippet5(boolean a, boolean b) {
132 return shortCircuitOr(!shortCircuitOr(a, b), a);
133 }
134
135 public static boolean testCascadeSnippet6(boolean a, boolean b) {
136 return shortCircuitOr(!shortCircuitOr(b, a), a);
137 }
138
139 public static boolean testCascadeSnippet7(boolean a, boolean b) {
140 return shortCircuitOr(!a, shortCircuitOr(a, b));
141 }
142
143 public static boolean testCascadeSnippet8(boolean a, boolean b) {
144 return shortCircuitOr(!a, shortCircuitOr(b, a));
145 }
146
147 public static boolean testCascadeSnippet9(boolean a, boolean b) {
148 return shortCircuitOr(shortCircuitOr(!a, b), a);
149 }
150
151 public static boolean testCascadeSnippet10(boolean a, boolean b) {
152 return shortCircuitOr(shortCircuitOr(!b, a), a);
153 }
154
155 public static boolean testCascadeSnippet11(boolean a, boolean b) {
156 return shortCircuitOr(a, !shortCircuitOr(a, b));
157 }
158
159 public static boolean testCascadeSnippet12(boolean a, boolean b) {
160 return shortCircuitOr(a, !shortCircuitOr(b, a));
161 }
162
163 public static boolean testCascadeSnippet13(boolean a, boolean b) {
164 return shortCircuitOr(!shortCircuitOr(!a, b), a);
165 }
166
167 public static boolean testCascadeSnippet14(boolean a, boolean b) {
168 return shortCircuitOr(!shortCircuitOr(!b, a), a);
169 }
170
171 public static boolean testCascadeSnippet15(boolean a, boolean b) {
172 return shortCircuitOr(!a, !shortCircuitOr(a, b));
173 }
174
175 public static boolean testCascadeSnippet16(boolean a, boolean b) {
176 return shortCircuitOr(!a, !shortCircuitOr(!b, a));
177 }
178
179 public static boolean testCascadeSnippet17(boolean a, boolean b) {
180 return shortCircuitOr(shortCircuitOr(a, !b), a);
181 }
182
183 public static boolean testCascadeSnippet18(boolean a, boolean b) {
184 return shortCircuitOr(shortCircuitOr(b, !a), a);
185 }
186
187 public static boolean testCascadeSnippet19(boolean a, boolean b) {
188 return shortCircuitOr(a, shortCircuitOr(!a, b));
189 }
190
191 public static boolean testCascadeSnippet20(boolean a, boolean b) {
192 return shortCircuitOr(a, shortCircuitOr(!b, a));
193 }
194
195 public static boolean testCascadeSnippet21(boolean a, boolean b) {
196 return shortCircuitOr(!shortCircuitOr(a, !b), a);
197 }
198
199 public static boolean testCascadeSnippet22(boolean a, boolean b) {
200 return shortCircuitOr(!shortCircuitOr(b, !a), a);
201 }
202
203 public static boolean testCascadeSnippet23(boolean a, boolean b) {
204 return shortCircuitOr(!a, shortCircuitOr(!a, b));
205 }
206
207 public static boolean testCascadeSnippet24(boolean a, boolean b) {
208 return shortCircuitOr(!a, shortCircuitOr(!b, a));
209 }
210
211 public static boolean testCascadeSnippet25(boolean a, boolean b) {
212 return shortCircuitOr(shortCircuitOr(!a, !b), a);
213 }
214
215 public static boolean testCascadeSnippet26(boolean a, boolean b) {
216 return shortCircuitOr(shortCircuitOr(!b, !a), a);
217 }
218
219 public static boolean testCascadeSnippet27(boolean a, boolean b) {
220 return shortCircuitOr(a, !shortCircuitOr(!a, b));
221 }
222
223 public static boolean testCascadeSnippet28(boolean a, boolean b) {
224 return shortCircuitOr(a, !shortCircuitOr(!b, a));
225 }
226
227 public static boolean testCascadeSnippet29(boolean a, boolean b) {
228 return shortCircuitOr(!shortCircuitOr(!a, !b), a);
229 }
230
231 public static boolean testCascadeSnippet30(boolean a, boolean b) {
232 return shortCircuitOr(!shortCircuitOr(!b, !a), a);
233 }
234
235 public static boolean testCascadeSnippet31(boolean a, boolean b) {
236 return shortCircuitOr(!a, !shortCircuitOr(!a, b));
237 }
238
239 public static boolean testCascadeSnippet32(boolean a, boolean b) {
240 return shortCircuitOr(!a, !shortCircuitOr(!b, a));
241 }
242
243 public static boolean testCascadeSnippet33(boolean a, boolean b) {
244 return shortCircuitOr(shortCircuitOr(a, b), !a);
245 }
246
247 public static boolean testCascadeSnippet34(boolean a, boolean b) {
248 return shortCircuitOr(shortCircuitOr(b, a), !a);
249 }
250
251 public static boolean testCascadeSnippet35(boolean a, boolean b) {
252 return shortCircuitOr(a, shortCircuitOr(a, !b));
253 }
254
255 public static boolean testCascadeSnippet36(boolean a, boolean b) {
256 return shortCircuitOr(a, shortCircuitOr(b, !a));
257 }
258
259 public static boolean testCascadeSnippet37(boolean a, boolean b) {
260 return shortCircuitOr(!shortCircuitOr(a, b), !a);
261 }
262
263 public static boolean testCascadeSnippet38(boolean a, boolean b) {
264 return shortCircuitOr(!shortCircuitOr(b, a), !a);
265 }
266
267 public static boolean testCascadeSnippet39(boolean a, boolean b) {
268 return shortCircuitOr(!a, shortCircuitOr(a, !b));
269 }
270
271 public static boolean testCascadeSnippet40(boolean a, boolean b) {
272 return shortCircuitOr(!a, shortCircuitOr(b, !a));
273 }
274
275 public static boolean testCascadeSnippet41(boolean a, boolean b) {
276 return shortCircuitOr(shortCircuitOr(!a, b), !a);
277 }
278
279 public static boolean testCascadeSnippet42(boolean a, boolean b) {
280 return shortCircuitOr(shortCircuitOr(!b, a), !a);
281 }
282
283 public static boolean testCascadeSnippet43(boolean a, boolean b) {
284 return shortCircuitOr(a, !shortCircuitOr(a, !b));
285 }
286
287 public static boolean testCascadeSnippet44(boolean a, boolean b) {
288 return shortCircuitOr(a, !shortCircuitOr(b, !a));
289 }
290
291 public static boolean testCascadeSnippet45(boolean a, boolean b) {
292 return shortCircuitOr(!shortCircuitOr(!a, b), !a);
293 }
294
295 public static boolean testCascadeSnippet46(boolean a, boolean b) {
296 return shortCircuitOr(!shortCircuitOr(!b, a), !a);
297 }
298
299 public static boolean testCascadeSnippet47(boolean a, boolean b) {
300 return shortCircuitOr(!a, !shortCircuitOr(a, !b));
301 }
302
303 public static boolean testCascadeSnippet48(boolean a, boolean b) {
304 return shortCircuitOr(!a, !shortCircuitOr(!b, !a));
305 }
306
307 public static boolean testCascadeSnippet49(boolean a, boolean b) {
308 return shortCircuitOr(shortCircuitOr(a, !b), !a);
309 }
310
311 public static boolean testCascadeSnippet50(boolean a, boolean b) {
312 return shortCircuitOr(shortCircuitOr(b, !a), !a);
313 }
314
315 public static boolean testCascadeSnippet51(boolean a, boolean b) {
316 return shortCircuitOr(a, shortCircuitOr(!a, !b));
317 }
318
319 public static boolean testCascadeSnippet52(boolean a, boolean b) {
320 return shortCircuitOr(a, shortCircuitOr(!b, !a));
321 }
322
323 public static boolean testCascadeSnippet53(boolean a, boolean b) {
324 return shortCircuitOr(!shortCircuitOr(a, !b), !a);
325 }
326
327 public static boolean testCascadeSnippet54(boolean a, boolean b) {
328 return shortCircuitOr(!shortCircuitOr(b, !a), !a);
329 }
330
331 public static boolean testCascadeSnippet55(boolean a, boolean b) {
332 return shortCircuitOr(!a, shortCircuitOr(!a, !b));
333 }
334
335 public static boolean testCascadeSnippet56(boolean a, boolean b) {
336 return shortCircuitOr(!a, shortCircuitOr(!b, !a));
337 }
338
339 public static boolean testCascadeSnippet57(boolean a, boolean b) {
340 return shortCircuitOr(shortCircuitOr(!a, !b), !a);
341 }
342
343 public static boolean testCascadeSnippet58(boolean a, boolean b) {
344 return shortCircuitOr(shortCircuitOr(!b, !a), !a);
345 }
346
347 public static boolean testCascadeSnippet59(boolean a, boolean b) {
348 return shortCircuitOr(a, !shortCircuitOr(!a, !b));
349 }
350
351 public static boolean testCascadeSnippet60(boolean a, boolean b) {
352 return shortCircuitOr(a, !shortCircuitOr(!b, !a));
353 }
354
355 public static boolean testCascadeSnippet61(boolean a, boolean b) {
356 return shortCircuitOr(!shortCircuitOr(!a, !b), !a);
357 }
358
359 public static boolean testCascadeSnippet62(boolean a, boolean b) {
360 return shortCircuitOr(!shortCircuitOr(!b, !a), !a);
361 }
362
363 public static boolean testCascadeSnippet63(boolean a, boolean b) {
364 return shortCircuitOr(!a, !shortCircuitOr(!a, !b));
365 }
366
367 public static boolean testCascadeSnippet64(boolean a, boolean b) {
368 return shortCircuitOr(!a, !shortCircuitOr(!b, !a));
369 }
370
371 @Test
372 public void testCascade() {
373 for (int i = 1; i <= 64; ++i) {
374 String snippet = "testCascadeSnippet" + i;
375 StructuredGraph graph = parseEager(snippet, AllowAssumptions.YES);
376 PhaseContext context = new PhaseContext(getProviders());
377 CanonicalizerPhase canonicalizer = new CanonicalizerPhase();
378 canonicalizer.apply(graph, context);
379 int shortCircuitCount = graph.getNodes(ShortCircuitOrNode.TYPE).count();
380
381 int trueCount = testInputCombinations(snippet);
382
383 if (trueCount % 2 == 0) {
384 // No ShortCircuitOrNode expected in the graph.
385 Assert.assertEquals(0, shortCircuitCount);
386 } else {
387 // Only a single ShortCircuitOrNode expected in the graph.
388 Assert.assertEquals(1, shortCircuitCount);
389 }
390 }
391 }
392 }