1 /*
2 * Copyright (c) 2014, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package java.lang.invoke;
26
27 /*
28 * @test TestStableDouble
29 * @summary tests on stable fields and arrays
30 * @library /testlibrary
31 * @compile -XDignore.symbol.file TestStableDouble.java
32 * @run main ClassFileInstaller
33 * java/lang/invoke/TestStableDouble
34 * java/lang/invoke/TestStableDouble$DoubleStable
35 * java/lang/invoke/TestStableDouble$StaticDoubleStable
36 * java/lang/invoke/TestStableDouble$VolatileDoubleStable
37 * java/lang/invoke/TestStableDouble$DoubleArrayDim1
38 * java/lang/invoke/TestStableDouble$DoubleArrayDim2
39 * java/lang/invoke/TestStableDouble$DoubleArrayDim3
40 * java/lang/invoke/TestStableDouble$DoubleArrayDim4
41 * java/lang/invoke/TestStableDouble$ObjectArrayLowerDim0
42 * java/lang/invoke/TestStableDouble$ObjectArrayLowerDim1
43 * java/lang/invoke/TestStableDouble$NestedStableField
44 * java/lang/invoke/TestStableDouble$NestedStableField$A
45 * java/lang/invoke/TestStableDouble$NestedStableField1
46 * java/lang/invoke/TestStableDouble$NestedStableField1$A
47 * java/lang/invoke/TestStableDouble$NestedStableField2
48 * java/lang/invoke/TestStableDouble$NestedStableField2$A
49 * java/lang/invoke/TestStableDouble$NestedStableField3
50 * java/lang/invoke/TestStableDouble$NestedStableField3$A
51 * java/lang/invoke/TestStableDouble$DefaultValue
52 * java/lang/invoke/TestStableDouble$ObjectArrayLowerDim2
53 *
54 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
55 * -XX:+FoldStableValues -XX:+UseCompressedOop
56 * -server -XX:-TieredCompilation -Xcomp
57 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
58 * java.lang.invoke.TestStableDouble
59 *
60 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
61 * -XX:+FoldStableValues -XX:-UseCompressedOop
62 * -server -XX:-TieredCompilation -Xcomp
63 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
64 * java.lang.invoke.TestStableDouble
65 *
66 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
67 * -XX:-FoldStableValues -XX:+UseCompressedOop
68 * -server -XX:-TieredCompilation -Xcomp
69 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
70 * java.lang.invoke.TestStableDouble
71 *
72 * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
73 * -XX:-FoldStableValues -XX:-UseCompressedOop
74 * -server -XX:-TieredCompilation -Xcomp
75 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
76 * java.lang.invoke.TestStableDouble
77 */
78 import com.sun.management.HotSpotDiagnosticMXBean;
79 import com.sun.management.VMOption;
80 import sun.management.ManagementFactoryHelper;
81 import java.lang.reflect.InvocationTargetException;
82
83 public class TestStableDouble {
84 public static void main(String[] args) throws Exception {
85 System.out.println("@Stable enabled: "+isStableEnabled);
86 System.out.println();
87
88 run(DefaultValue.class);
89 run(DoubleStable.class);
90 run(StaticDoubleStable.class);
91 run(VolatileDoubleStable.class);
92
93 // @Stable arrays: Dim 1-4
94 run(DoubleArrayDim1.class);
95 run(DoubleArrayDim2.class);
96 run(DoubleArrayDim3.class);
97 run(DoubleArrayDim4.class);
98
99 // @Stable Object field: dynamic arrays
100 run(ObjectArrayLowerDim0.class);
101 run(ObjectArrayLowerDim1.class);
102 run(ObjectArrayLowerDim2.class);
103
104 // Nested @Stable fields
105 run(NestedStableField.class);
106 run(NestedStableField1.class);
107 run(NestedStableField2.class);
108 run(NestedStableField3.class);
109
110 if (failed) {
111 throw new Error("TEST FAILED");
112 }
113 }
114
115 /* ==================================================== */
116
117 static class DefaultValue {
118 public @Stable double v;
119
120 public static final DefaultValue c = new DefaultValue();
121 public static double get() { return c.v; }
122 public static void test() throws Exception {
123 double val1 = get();
124 c.v = 1.0; double val2 = get();
125 assertEquals(val1, 0);
126 assertEquals(val2, 1.0);
127 }
128 }
129
130 /* ==================================================== */
131
132 static class DoubleStable {
133 public @Stable double v;
134
135 public static final DoubleStable c = new DoubleStable();
136 public static double get() { return c.v; }
137 public static void test() throws Exception {
138 c.v = 1.0; double val1 = get();
139 c.v = Double.MAX_VALUE; double val2 = get();
140 assertEquals(val1, 1.0);
141 assertEquals(val2, (isStableEnabled ? 1.0 : Double.MAX_VALUE));
142 }
143 }
144
145 /* ==================================================== */
146
147 static class StaticDoubleStable {
148 public static @Stable double v;
149
150 public static final StaticDoubleStable c = new StaticDoubleStable();
151 public static double get() { return c.v; }
152 public static void test() throws Exception {
153 c.v = 1.0; double val1 = get();
154 c.v = Double.MAX_VALUE; double val2 = get();
155 assertEquals(val1, 1.0);
156 assertEquals(val2, (isStableEnabled ? 1.0 : Double.MAX_VALUE));
157 }
158 }
159
160 /* ==================================================== */
161
162 static class VolatileDoubleStable {
163 public @Stable double v;
164
165 public static final VolatileDoubleStable c = new VolatileDoubleStable();
166 public static double get() { return c.v; }
167 public static void test() throws Exception {
168 c.v = 1.0; double val1 = get();
169 c.v = Double.MAX_VALUE; double val2 = get();
170 assertEquals(val1, 1.0);
171 assertEquals(val2, (isStableEnabled ? 1.0 : Double.MAX_VALUE));
172 }
173 }
174
175 /* ==================================================== */
176 // @Stable array == field && all components are stable
177
178 static class DoubleArrayDim1 {
179 public @Stable double[] v;
180
181 public static final DoubleArrayDim1 c = new DoubleArrayDim1();
182 public static double get() { return c.v[0]; }
183 public static double get1() { return c.v[10]; }
184 public static double[] get2() { return c.v; }
185 public static void test() throws Exception {
186 {
187 c.v = new double[1]; c.v[0] = 1.0; double val1 = get();
188 c.v[0] = 2.0; double val2 = get();
189 assertEquals(val1, 1.0);
190 assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));
191
192 c.v = new double[1]; c.v[0] = 3.0; double val3 = get();
193 assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));
194 }
195
196 {
197 c.v = new double[20]; c.v[10] = 1.0; double val1 = get1();
198 c.v[10] = 2.0; double val2 = get1();
199 assertEquals(val1, 1.0);
200 assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));
201
202 c.v = new double[20]; c.v[10] = 3.0; double val3 = get1();
203 assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));
204 }
205
206 {
207 c.v = new double[1]; double[] val1 = get2();
208 c.v = new double[1]; double[] val2 = get2();
209 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
210 }
211 }
212 }
213
214 /* ==================================================== */
215
216 static class DoubleArrayDim2 {
217 public @Stable double[][] v;
218
219 public static final DoubleArrayDim2 c = new DoubleArrayDim2();
220 public static double get() { return c.v[0][0]; }
221 public static double[] get1() { return c.v[0]; }
222 public static double[][] get2() { return c.v; }
223 public static void test() throws Exception {
224 {
225 c.v = new double[1][1]; c.v[0][0] = 1.0; double val1 = get();
226 c.v[0][0] = 2.0; double val2 = get();
227 assertEquals(val1, 1.0);
228 assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));
229
230 c.v = new double[1][1]; c.v[0][0] = 3.0; double val3 = get();
231 assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));
232
233 c.v[0] = new double[1]; c.v[0][0] = 4.0; double val4 = get();
234 assertEquals(val4, (isStableEnabled ? 1.0 : 4.0));
235 }
236
237 {
238 c.v = new double[1][1]; double[] val1 = get1();
239 c.v[0] = new double[1]; double[] val2 = get1();
240 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
241 }
242
243 {
244 c.v = new double[1][1]; double[][] val1 = get2();
245 c.v = new double[1][1]; double[][] val2 = get2();
246 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
247 }
248 }
249 }
250
251 /* ==================================================== */
252
253 static class DoubleArrayDim3 {
254 public @Stable double[][][] v;
255
256 public static final DoubleArrayDim3 c = new DoubleArrayDim3();
257 public static double get() { return c.v[0][0][0]; }
258 public static double[] get1() { return c.v[0][0]; }
259 public static double[][] get2() { return c.v[0]; }
260 public static double[][][] get3() { return c.v; }
261 public static void test() throws Exception {
262 {
263 c.v = new double[1][1][1]; c.v[0][0][0] = 1.0; double val1 = get();
264 c.v[0][0][0] = 2.0; double val2 = get();
265 assertEquals(val1, 1.0);
266 assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));
267
268 c.v = new double[1][1][1]; c.v[0][0][0] = 3.0; double val3 = get();
269 assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));
270
271 c.v[0] = new double[1][1]; c.v[0][0][0] = 4.0; double val4 = get();
272 assertEquals(val4, (isStableEnabled ? 1.0 : 4.0));
273
274 c.v[0][0] = new double[1]; c.v[0][0][0] = 5.0; double val5 = get();
275 assertEquals(val5, (isStableEnabled ? 1.0 : 5.0));
276 }
277
278 {
279 c.v = new double[1][1][1]; double[] val1 = get1();
280 c.v[0][0] = new double[1]; double[] val2 = get1();
281 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
282 }
283
284 {
285 c.v = new double[1][1][1]; double[][] val1 = get2();
286 c.v[0] = new double[1][1]; double[][] val2 = get2();
287 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
288 }
289
290 {
291 c.v = new double[1][1][1]; double[][][] val1 = get3();
292 c.v = new double[1][1][1]; double[][][] val2 = get3();
293 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
294 }
295 }
296 }
297
298 /* ==================================================== */
299
300 static class DoubleArrayDim4 {
301 public @Stable double[][][][] v;
302
303 public static final DoubleArrayDim4 c = new DoubleArrayDim4();
304 public static double get() { return c.v[0][0][0][0]; }
305 public static double[] get1() { return c.v[0][0][0]; }
306 public static double[][] get2() { return c.v[0][0]; }
307 public static double[][][] get3() { return c.v[0]; }
308 public static double[][][][] get4() { return c.v; }
309 public static void test() throws Exception {
310 {
311 c.v = new double[1][1][1][1]; c.v[0][0][0][0] = 1.0; double val1 = get();
312 c.v[0][0][0][0] = 2.0; double val2 = get();
313 assertEquals(val1, 1.0);
314 assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));
315
316 c.v = new double[1][1][1][1]; c.v[0][0][0][0] = 3.0; double val3 = get();
317 assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));
318
319 c.v[0] = new double[1][1][1]; c.v[0][0][0][0] = 4.0; double val4 = get();
320 assertEquals(val4, (isStableEnabled ? 1.0 : 4.0));
321
322 c.v[0][0] = new double[1][1]; c.v[0][0][0][0] = 5.0; double val5 = get();
323 assertEquals(val5, (isStableEnabled ? 1.0 : 5.0));
324
325 c.v[0][0][0] = new double[1]; c.v[0][0][0][0] = 6.0; double val6 = get();
326 assertEquals(val6, (isStableEnabled ? 1.0 : 6.0));
327 }
328
329 {
330 c.v = new double[1][1][1][1]; double[] val1 = get1();
331 c.v[0][0][0] = new double[1]; double[] val2 = get1();
332 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
333 }
334
335 {
336 c.v = new double[1][1][1][1]; double[][] val1 = get2();
337 c.v[0][0] = new double[1][1]; double[][] val2 = get2();
338 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
339 }
340
341 {
342 c.v = new double[1][1][1][1]; double[][][] val1 = get3();
343 c.v[0] = new double[1][1][1]; double[][][] val2 = get3();
344 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
345 }
346
347 {
348 c.v = new double[1][1][1][1]; double[][][][] val1 = get4();
349 c.v = new double[1][1][1][1]; double[][][][] val2 = get4();
350 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
351 }
352
353 }
354 }
355
356 /* ==================================================== */
357 // Dynamic Dim is higher than static
358
359 static class ObjectArrayLowerDim0 {
360 public @Stable Object v;
361
362 public static final ObjectArrayLowerDim0 c = new ObjectArrayLowerDim0();
363 public static double get() { return ((double[])c.v)[0]; }
364 public static double[] get1() { return (double[])c.v; }
365
366 public static void test() throws Exception {
367 {
368 c.v = new double[1]; ((double[])c.v)[0] = 1.0; double val1 = get();
369 ((double[])c.v)[0] = 2.0; double val2 = get();
370
371 assertEquals(val1, 1.0);
372 assertEquals(val2, 2.0);
373 }
374
375 {
376 c.v = new double[1]; double[] val1 = get1();
377 c.v = new double[1]; double[] val2 = get1();
378 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
379 }
380 }
381 }
382
383 /* ==================================================== */
384
385 static class ObjectArrayLowerDim1 {
386 public @Stable Object[] v;
387
388 public static final ObjectArrayLowerDim1 c = new ObjectArrayLowerDim1();
389 public static double get() { return ((double[][])c.v)[0][0]; }
390 public static double[] get1() { return (double[])(c.v[0]); }
391 public static Object[] get2() { return c.v; }
392
393 public static void test() throws Exception {
394 {
395 c.v = new double[1][1]; ((double[][])c.v)[0][0] = 1.0; double val1 = get();
396 ((double[][])c.v)[0][0] = 2.0; double val2 = get();
397
398 assertEquals(val1, 1.0);
399 assertEquals(val2, 2.0);
400 }
401
402 {
403 c.v = new double[1][1]; c.v[0] = new double[0]; double[] val1 = get1();
404 c.v[0] = new double[0]; double[] val2 = get1();
405
406 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
407 }
408
409 {
410 c.v = new double[0][0]; Object[] val1 = get2();
411 c.v = new double[0][0]; Object[] val2 = get2();
412
413 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
414 }
415 }
416 }
417
418 /* ==================================================== */
419
420 static class ObjectArrayLowerDim2 {
421 public @Stable Object[][] v;
422
423 public static final ObjectArrayLowerDim2 c = new ObjectArrayLowerDim2();
424 public static double get() { return ((double[][][])c.v)[0][0][0]; }
425 public static double[] get1() { return (double[])(c.v[0][0]); }
426 public static double[][] get2() { return (double[][])(c.v[0]); }
427 public static Object[][] get3() { return c.v; }
428
429 public static void test() throws Exception {
430 {
431 c.v = new double[1][1][1]; ((double[][][])c.v)[0][0][0] = 1.0; double val1 = get();
432 ((double[][][])c.v)[0][0][0] = 2.0; double val2 = get();
433
434 assertEquals(val1, 1.0);
435 assertEquals(val2, 2.0);
436 }
437
438 {
439 c.v = new double[1][1][1]; c.v[0][0] = new double[0]; double[] val1 = get1();
440 c.v[0][0] = new double[0]; double[] val2 = get1();
441
442 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
443 }
444
445 {
446 c.v = new double[1][1][1]; c.v[0] = new double[0][0]; double[][] val1 = get2();
447 c.v[0] = new double[0][0]; double[][] val2 = get2();
448
449 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
450 }
451
452 {
453 c.v = new double[0][0][0]; Object[][] val1 = get3();
454 c.v = new double[0][0][0]; Object[][] val2 = get3();
455
456 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
457 }
458 }
459 }
460
461 /* ==================================================== */
462
463 static class NestedStableField {
464 static class A {
465 public @Stable double a;
466
467 }
468 public @Stable A v;
469
470 public static final NestedStableField c = new NestedStableField();
471 public static A get() { return c.v; }
472 public static double get1() { return get().a; }
473
474 public static void test() throws Exception {
475 {
476 c.v = new A(); c.v.a = 1.0; A val1 = get();
477 c.v.a = 2.0; A val2 = get();
478
479 assertEquals(val1.a, 2.0);
480 assertEquals(val2.a, 2.0);
481 }
482
483 {
484 c.v = new A(); c.v.a = 1.0; double val1 = get1();
485 c.v.a = 2.0; double val2 = get1();
486 c.v = new A(); c.v.a = 3.0; double val3 = get1();
487
488 assertEquals(val1, 1.0);
489 assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));
490 assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));
491 }
492 }
493 }
494
495 /* ==================================================== */
496
497 static class NestedStableField1 {
498 static class A {
499 public @Stable double a;
500 public @Stable A next;
501 }
502 public @Stable A v;
503
504 public static final NestedStableField1 c = new NestedStableField1();
505 public static A get() { return c.v.next.next.next.next.next.next.next; }
506 public static double get1() { return get().a; }
507
508 public static void test() throws Exception {
509 {
510 c.v = new A(); c.v.next = new A(); c.v.next.next = c.v;
511 c.v.a = 1.0; c.v.next.a = 1.0; A val1 = get();
512 c.v.a = 2.0; c.v.next.a = 2.0; A val2 = get();
513
514 assertEquals(val1.a, 2.0);
515 assertEquals(val2.a, 2.0);
516 }
517
518 {
519 c.v = new A(); c.v.next = c.v;
520 c.v.a = 1.0; double val1 = get1();
521 c.v.a = 2.0; double val2 = get1();
522 c.v = new A(); c.v.next = c.v;
523 c.v.a = 3.0; double val3 = get1();
524
525 assertEquals(val1, 1.0);
526 assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));
527 assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));
528 }
529 }
530 }
531 /* ==================================================== */
532
533 static class NestedStableField2 {
534 static class A {
535 public @Stable double a;
536 public @Stable A left;
537 public A right;
538 }
539
540 public @Stable A v;
541
542 public static final NestedStableField2 c = new NestedStableField2();
543 public static double get() { return c.v.left.left.left.a; }
544 public static double get1() { return c.v.left.left.right.left.a; }
545
546 public static void test() throws Exception {
547 {
548 c.v = new A(); c.v.left = c.v.right = c.v;
549 c.v.a = 1.0; double val1 = get(); double val2 = get1();
550 c.v.a = 2.0; double val3 = get(); double val4 = get1();
551
552 assertEquals(val1, 1.0);
553 assertEquals(val3, (isStableEnabled ? 1.0 : 2.0));
554
555 assertEquals(val2, 1.0);
556 assertEquals(val4, 2.0);
557 }
558 }
559 }
560
561 /* ==================================================== */
562
563 static class NestedStableField3 {
564 static class A {
565 public @Stable double a;
566 public @Stable A[] left;
567 public A[] right;
568 }
569
570 public @Stable A[] v;
571
572 public static final NestedStableField3 c = new NestedStableField3();
573 public static double get() { return c.v[0].left[1].left[0].left[1].a; }
574 public static double get1() { return c.v[1].left[0].left[1].right[0].left[1].a; }
575
576 public static void test() throws Exception {
577 {
578 A elem = new A();
579 c.v = new A[] { elem, elem }; c.v[0].left = c.v[0].right = c.v;
580 elem.a = 1.0; double val1 = get(); double val2 = get1();
581 elem.a = 2.0; double val3 = get(); double val4 = get1();
582
583 assertEquals(val1, 1.0);
584 assertEquals(val3, (isStableEnabled ? 1.0 : 2.0));
585
586 assertEquals(val2, 1.0);
587 assertEquals(val4, 2.0);
588 }
589 }
590 }
591
592 /* ==================================================== */
593 // Auxiliary methods
594 static void assertEquals(double i, double j) { if (i != j) throw new AssertionError(i + " != " + j); }
595 static void assertTrue(boolean b) { if (!b) throw new AssertionError(); }
596
597 static boolean failed = false;
598
599 public static void run(Class<?> test) {
600 Throwable ex = null;
601 System.out.print(test.getName()+": ");
602 try {
603 test.getMethod("test").invoke(null);
604 } catch (InvocationTargetException e) {
605 ex = e.getCause();
606 } catch (Throwable e) {
607 ex = e;
608 } finally {
609 if (ex == null) {
610 System.out.println("PASSED");
611 } else {
612 failed = true;
613 System.out.println("FAILED");
614 ex.printStackTrace(System.out);
615 }
616 }
617 }
618
619 static final boolean isStableEnabled;
620 static {
621 HotSpotDiagnosticMXBean diagnostic
622 = ManagementFactoryHelper.getDiagnosticMXBean();
623 VMOption tmp;
624 try {
625 tmp = diagnostic.getVMOption("FoldStableValues");
626 } catch (IllegalArgumentException e) {
627 tmp = null;
628 }
629 isStableEnabled = (tmp == null ? false : Boolean.parseBoolean(tmp.getValue()));
630 }
631 }