1 /*
2 * Copyright (c) 2014, 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. 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
26 /*
27 * @test TestStableObject
28 * @summary tests on stable fields and arrays
29 * @library /test/lib /
30 * @modules java.base/jdk.internal.misc
31 * @modules java.base/jdk.internal.vm.annotation
32 * @build sun.hotspot.WhiteBox
33 *
34 * @run main/bootclasspath/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
35 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
36 * -XX:-TieredCompilation
37 * -XX:+FoldStableValues
38 * compiler.stable.TestStableObject
39 * @run main/bootclasspath/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
40 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
41 * -XX:-TieredCompilation
42 * -XX:+FoldStableValues
43 * compiler.stable.TestStableObject
44 *
45 * @run main/bootclasspath/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
46 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
47 * -XX:-TieredCompilation
48 * -XX:+FoldStableValues
49 * compiler.stable.TestStableObject
50 * @run main/bootclasspath/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
51 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
52 * -XX:-TieredCompilation
53 * -XX:+FoldStableValues
54 * compiler.stable.TestStableObject
55 */
56
57 package compiler.stable;
58
59 import jdk.internal.vm.annotation.Stable;
60
61 import java.lang.reflect.InvocationTargetException;
62
63 public class TestStableObject {
64 static final boolean isStableEnabled = StableConfiguration.isStableEnabled;
65
66 public static void main(String[] args) throws Exception {
67 run(DefaultValue.class);
68 run(ObjectStable.class);
69 run(DefaultStaticValue.class);
70 run(StaticObjectStable.class);
71 run(VolatileObjectStable.class);
72
73 // @Stable arrays: Dim 1-4
74 run(ObjectArrayDim1.class);
75 run(ObjectArrayDim2.class);
76 run(ObjectArrayDim3.class);
77 run(ObjectArrayDim4.class);
78
79 // @Stable Object field: dynamic arrays
80 run(ObjectArrayLowerDim0.class);
81 run(ObjectArrayLowerDim1.class);
82 run(ObjectArrayLowerDim2.class);
83
84 // Nested @Stable fields
85 run(NestedStableField.class);
86 run(NestedStableField1.class);
87 run(NestedStableField2.class);
88 run(NestedStableField3.class);
89
90 if (failed) {
91 throw new Error("TEST FAILED");
92 }
93 }
94
95 /* ==================================================== */
96
97 enum Values {A, B, C, D, E, F}
98
99 static class DefaultValue {
100 public @Stable Object v;
101
102 public static final DefaultValue c = new DefaultValue();
103 public static Object get() { return c.v; }
104 public static void test() throws Exception {
105 Object val1 = get();
106 c.v = Values.A; Object val2 = get();
107 assertEquals(val1, null);
108 assertEquals(val2, Values.A);
109 }
110 }
111
112 /* ==================================================== */
113
114 static class ObjectStable {
115 public @Stable Values v;
116
117 public static final ObjectStable c = new ObjectStable ();
118 public static Values get() { return c.v; }
119 public static void test() throws Exception {
120 c.v = Values.A; Values val1 = get();
121 c.v = Values.B; Values val2 = get();
122 assertEquals(val1, Values.A);
123 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
124 }
125 }
126
127 /* ==================================================== */
128
129 static class DefaultStaticValue {
130 public static @Stable Object v;
131
132 public static final DefaultStaticValue c = new DefaultStaticValue();
133 public static Object get() { return c.v; }
134 public static void test() throws Exception {
135 Object val1 = get();
136 c.v = Values.A; Object val2 = get();
137 assertEquals(val1, null);
138 assertEquals(val2, Values.A);
139 }
140 }
141
142 /* ==================================================== */
143
144 static class StaticObjectStable {
145 public static @Stable Values v;
146
147 public static final ObjectStable c = new ObjectStable ();
148 public static Values get() { return c.v; }
149 public static void test() throws Exception {
150 c.v = Values.A; Values val1 = get();
151 c.v = Values.B; Values val2 = get();
152 assertEquals(val1, Values.A);
153 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
154 }
155 }
156
157 /* ==================================================== */
158
159 static class VolatileObjectStable {
160 public @Stable volatile Values v;
161
162 public static final VolatileObjectStable c = new VolatileObjectStable ();
163 public static Values get() { return c.v; }
164 public static void test() throws Exception {
165 c.v = Values.A; Values val1 = get();
166 c.v = Values.B; Values val2 = get();
167 assertEquals(val1, Values.A);
168 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
169 }
170 }
171
172 /* ==================================================== */
173 // @Stable array == field && all components are stable
174
175 static class ObjectArrayDim1 {
176 public @Stable Object[] v;
177
178 public static final ObjectArrayDim1 c = new ObjectArrayDim1();
179 public static Object get() { return c.v[0]; }
180 public static Object get1() { return c.v[10]; }
181 public static Object[] get2() { return c.v; }
182 public static void test() throws Exception {
183 {
184 c.v = new Object[1]; c.v[0] = Values.A; Object val1 = get();
185 c.v[0] = Values.B; Object val2 = get();
186 assertEquals(val1, Values.A);
187 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
188
189 c.v = new Object[1]; c.v[0] = Values.C; Object val3 = get();
190 assertEquals(val3, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
191 : Values.C));
192 }
193
194 {
195 c.v = new Object[20]; c.v[10] = Values.A; Object val1 = get1();
196 c.v[10] = Values.B; Object val2 = get1();
197 assertEquals(val1, Values.A);
198 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
199
200 c.v = new Object[20]; c.v[10] = Values.C; Object val3 = get1();
201 assertEquals(val3, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
202 : Values.C));
203 }
204
205 {
206 c.v = new Object[1]; Object[] val1 = get2();
207 c.v = new Object[1]; Object[] val2 = get2();
208 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
209 }
210 }
211 }
212
213 /* ==================================================== */
214
215 static class ObjectArrayDim2 {
216 public @Stable Object[][] v;
217
218 public static final ObjectArrayDim2 c = new ObjectArrayDim2();
219 public static Object get() { return c.v[0][0]; }
220 public static Object[] get1() { return c.v[0]; }
221 public static Object[][] get2() { return c.v; }
222 public static void test() throws Exception {
223 {
224 c.v = new Object[1][1]; c.v[0][0] = Values.A; Object val1 = get();
225 c.v[0][0] = Values.B; Object val2 = get();
226 assertEquals(val1, Values.A);
227 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
228
229 c.v = new Object[1][1]; c.v[0][0] = Values.C; Object val3 = get();
230 assertEquals(val3, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
231 : Values.C));
232
233 c.v[0] = new Object[1]; c.v[0][0] = Values.D; Object val4 = get();
234 assertEquals(val4, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
235 : Values.D));
236 }
237
238 {
239 c.v = new Object[1][1]; Object[] val1 = get1();
240 c.v[0] = new Object[1]; Object[] val2 = get1();
241 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
242 }
243
244 {
245 c.v = new Object[1][1]; Object[][] val1 = get2();
246 c.v = new Object[1][1]; Object[][] val2 = get2();
247 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
248 }
249 }
250 }
251
252 /* ==================================================== */
253
254 static class ObjectArrayDim3 {
255 public @Stable Object[][][] v;
256
257 public static final ObjectArrayDim3 c = new ObjectArrayDim3();
258 public static Object get() { return c.v[0][0][0]; }
259 public static Object[] get1() { return c.v[0][0]; }
260 public static Object[][] get2() { return c.v[0]; }
261 public static Object[][][] get3() { return c.v; }
262 public static void test() throws Exception {
263 {
264 c.v = new Object[1][1][1]; c.v[0][0][0] = Values.A; Object val1 = get();
265 c.v[0][0][0] = Values.B; Object val2 = get();
266 assertEquals(val1, Values.A);
267 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
268
269 c.v = new Object[1][1][1]; c.v[0][0][0] = Values.C; Object val3 = get();
270 assertEquals(val3, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
271 : Values.C));
272
273 c.v[0] = new Object[1][1]; c.v[0][0][0] = Values.D; Object val4 = get();
274 assertEquals(val4, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
275 : Values.D));
276
277 c.v[0][0] = new Object[1]; c.v[0][0][0] = Values.E; Object val5 = get();
278 assertEquals(val5, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
279 : Values.E));
280 }
281
282 {
283 c.v = new Object[1][1][1]; Object[] val1 = get1();
284 c.v[0][0] = new Object[1]; Object[] val2 = get1();
285 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
286 }
287
288 {
289 c.v = new Object[1][1][1]; Object[][] val1 = get2();
290 c.v[0] = new Object[1][1]; Object[][] val2 = get2();
291 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
292 }
293
294 {
295 c.v = new Object[1][1][1]; Object[][][] val1 = get3();
296 c.v = new Object[1][1][1]; Object[][][] val2 = get3();
297 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
298 }
299 }
300 }
301
302 /* ==================================================== */
303
304 static class ObjectArrayDim4 {
305 public @Stable Object[][][][] v;
306
307 public static final ObjectArrayDim4 c = new ObjectArrayDim4();
308 public static Object get() { return c.v[0][0][0][0]; }
309 public static Object[] get1() { return c.v[0][0][0]; }
310 public static Object[][] get2() { return c.v[0][0]; }
311 public static Object[][][] get3() { return c.v[0]; }
312 public static Object[][][][] get4() { return c.v; }
313 public static void test() throws Exception {
314 {
315 c.v = new Object[1][1][1][1]; c.v[0][0][0][0] = Values.A; Object val1 = get();
316 c.v[0][0][0][0] = Values.B; Object val2 = get();
317 assertEquals(val1, Values.A);
318 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
319
320 c.v = new Object[1][1][1][1]; c.v[0][0][0][0] = Values.C; Object val3 = get();
321 assertEquals(val3, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
322 : Values.C));
323
324 c.v[0] = new Object[1][1][1]; c.v[0][0][0][0] = Values.D; Object val4 = get();
325 assertEquals(val4, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
326 : Values.D));
327
328 c.v[0][0] = new Object[1][1]; c.v[0][0][0][0] = Values.E; Object val5 = get();
329 assertEquals(val5, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
330 : Values.E));
331
332 c.v[0][0][0] = new Object[1]; c.v[0][0][0][0] = Values.F; Object val6 = get();
333 assertEquals(val6, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
334 : Values.F));
335 }
336
337 {
338 c.v = new Object[1][1][1][1]; Object[] val1 = get1();
339 c.v[0][0][0] = new Object[1]; Object[] val2 = get1();
340 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
341 }
342
343 {
344 c.v = new Object[1][1][1][1]; Object[][] val1 = get2();
345 c.v[0][0] = new Object[1][1]; Object[][] val2 = get2();
346 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
347 }
348
349 {
350 c.v = new Object[1][1][1][1]; Object[][][] val1 = get3();
351 c.v[0] = new Object[1][1][1]; Object[][][] val2 = get3();
352 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
353 }
354
355 {
356 c.v = new Object[1][1][1][1]; Object[][][][] val1 = get4();
357 c.v = new Object[1][1][1][1]; Object[][][][] val2 = get4();
358 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
359 }
360 }
361 }
362
363 /* ==================================================== */
364 // Dynamic Dim is higher than static
365 static class ObjectArrayLowerDim0 {
366 public @Stable Object v;
367
368 public static final ObjectArrayLowerDim0 c = new ObjectArrayLowerDim0();
369 public static Object get() { return ((Object[])c.v)[0]; }
370 public static Object[] get1() { return (Object[])c.v; }
371
372 public static void test() throws Exception {
373 {
374 c.v = new Object[1]; ((Object[])c.v)[0] = Values.A; Object val1 = get();
375 ((Object[])c.v)[0] = Values.B; Object val2 = get();
376
377 assertEquals(val1, Values.A);
378 assertEquals(val2, Values.B);
379 }
380
381 {
382 c.v = new Object[1]; Object[] val1 = get1();
383 c.v = new Object[1]; Object[] val2 = get1();
384 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
385 }
386 }
387 }
388
389 /* ==================================================== */
390
391 static class ObjectArrayLowerDim1 {
392 public @Stable Object[] v;
393
394 public static final ObjectArrayLowerDim1 c = new ObjectArrayLowerDim1();
395 public static Object get() { return ((Object[][])c.v)[0][0]; }
396 public static Object[] get1() { return (Object[])(c.v[0]); }
397 public static Object[] get2() { return c.v; }
398
399 public static void test() throws Exception {
400 {
401 c.v = new Object[1][1]; ((Object[][])c.v)[0][0] = Values.A; Object val1 = get();
402 ((Object[][])c.v)[0][0] = Values.B; Object val2 = get();
403
404 assertEquals(val1, Values.A);
405 assertEquals(val2, Values.B);
406 }
407
408 {
409 c.v = new Object[1][1]; c.v[0] = new Object[0]; Object[] val1 = get1();
410 c.v[0] = new Object[0]; Object[] val2 = get1();
411
412 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
413 }
414
415 {
416 c.v = new Object[0][0]; Object[] val1 = get2();
417 c.v = new Object[0][0]; Object[] val2 = get2();
418
419 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
420 }
421 }
422 }
423
424 /* ==================================================== */
425
426 static class ObjectArrayLowerDim2 {
427 public @Stable Object[][] v;
428
429 public static final ObjectArrayLowerDim2 c = new ObjectArrayLowerDim2();
430 public static Object get() { return ((Object[][][])c.v)[0][0][0]; }
431 public static Object[] get1() { return (Object[])(c.v[0][0]); }
432 public static Object[][] get2() { return (Object[][])(c.v[0]); }
433 public static Object[][] get3() { return c.v; }
434
435 public static void test() throws Exception {
436 {
437 c.v = new Object[1][1][1]; ((Object[][][])c.v)[0][0][0] = Values.A; Object val1 = get();
438 ((Object[][][])c.v)[0][0][0] = Values.B; Object val2 = get();
439
440 assertEquals(val1, Values.A);
441 assertEquals(val2, Values.B);
442 }
443
444 {
445 c.v = new Object[1][1][1]; c.v[0][0] = new Object[0]; Object[] val1 = get1();
446 c.v[0][0] = new Object[0]; Object[] val2 = get1();
447
448 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
449 }
450
451 {
452 c.v = new Object[1][1][1]; c.v[0] = new Object[0][0]; Object[][] val1 = get2();
453 c.v[0] = new Object[0][0]; Object[][] val2 = get2();
454
455 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
456 }
457
458 {
459 c.v = new Object[0][0][0]; Object[][] val1 = get3();
460 c.v = new Object[0][0][0]; Object[][] val2 = get3();
461
462 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
463 }
464 }
465 }
466
467 /* ==================================================== */
468
469 static class NestedStableField {
470 static class A {
471 public @Stable Object a;
472
473 }
474 public @Stable A v;
475
476 public static final NestedStableField c = new NestedStableField();
477 public static A get() { return c.v; }
478 public static Object get1() { return get().a; }
479
480 public static void test() throws Exception {
481 {
482 c.v = new A(); c.v.a = Values.A; A val1 = get();
483 c.v.a = Values.B; A val2 = get();
484
485 assertEquals(val1.a, Values.B);
486 assertEquals(val2.a, Values.B);
487 }
488
489 {
490 c.v = new A(); c.v.a = Values.A; Object val1 = get1();
491 c.v.a = Values.B; Object val2 = get1();
492 c.v = new A(); c.v.a = Values.C; Object val3 = get1();
493
494 assertEquals(val1, Values.A);
495 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
496 assertEquals(val3, (isStableEnabled ? Values.A : Values.C));
497 }
498 }
499 }
500
501 /* ==================================================== */
502
503 static class NestedStableField1 {
504 static class A {
505 public @Stable Object a;
506 public @Stable A next;
507 }
508 public @Stable A v;
509
510 public static final NestedStableField1 c = new NestedStableField1();
511 public static A get() { return c.v.next.next.next.next.next.next.next; }
512 public static Object get1() { return get().a; }
513
514 public static void test() throws Exception {
515 {
516 c.v = new A(); c.v.next = new A(); c.v.next.next = c.v;
517 c.v.a = Values.A; c.v.next.a = Values.A; A val1 = get();
518 c.v.a = Values.B; c.v.next.a = Values.B; A val2 = get();
519
520 assertEquals(val1.a, Values.B);
521 assertEquals(val2.a, Values.B);
522 }
523
524 {
525 c.v = new A(); c.v.next = c.v;
526 c.v.a = Values.A; Object val1 = get1();
527 c.v.a = Values.B; Object val2 = get1();
528 c.v = new A(); c.v.next = c.v;
529 c.v.a = Values.C; Object val3 = get1();
530
531 assertEquals(val1, Values.A);
532 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
533 assertEquals(val3, (isStableEnabled ? Values.A : Values.C));
534 }
535 }
536 }
537 /* ==================================================== */
538
539 static class NestedStableField2 {
540 static class A {
541 public @Stable Object a;
542 public @Stable A left;
543 public A right;
544 }
545
546 public @Stable A v;
547
548 public static final NestedStableField2 c = new NestedStableField2();
549 public static Object get() { return c.v.left.left.left.a; }
550 public static Object get1() { return c.v.left.left.right.left.a; }
551
552 public static void test() throws Exception {
553 {
554 c.v = new A(); c.v.left = c.v.right = c.v;
555 c.v.a = Values.A; Object val1 = get(); Object val2 = get1();
556 c.v.a = Values.B; Object val3 = get(); Object val4 = get1();
557
558 assertEquals(val1, Values.A);
559 assertEquals(val3, (isStableEnabled ? Values.A : Values.B));
560
561 assertEquals(val2, Values.A);
562 assertEquals(val4, Values.B);
563 }
564 }
565 }
566
567 /* ==================================================== */
568
569 static class NestedStableField3 {
570 static class A {
571 public @Stable Object a;
572 public @Stable A[] left;
573 public A[] right;
574 }
575
576 public @Stable A[] v;
577
578 public static final NestedStableField3 c = new NestedStableField3();
579 public static Object get() { return c.v[0].left[1].left[0].left[1].a; }
580 public static Object get1() { return c.v[1].left[0].left[1].right[0].left[1].a; }
581
582 public static void test() throws Exception {
583 {
584 A elem = new A();
585 c.v = new A[] { elem, elem }; c.v[0].left = c.v[0].right = c.v;
586 elem.a = Values.A; Object val1 = get(); Object val2 = get1();
587 elem.a = Values.B; Object val3 = get(); Object val4 = get1();
588
589 assertEquals(val1, Values.A);
590 assertEquals(val3, (isStableEnabled ? Values.A : Values.B));
591
592 assertEquals(val2, Values.A);
593 assertEquals(val4, Values.B);
594 }
595 }
596 }
597
598 /* ==================================================== */
599 // Auxiliary methods
600 static void assertEquals(Object i, Object j) { if (i != j) throw new AssertionError(i + " != " + j); }
601 static void assertTrue(boolean b) { if (!b) throw new AssertionError(); }
602
603 static boolean failed = false;
604
605 public static void run(Class<?> test) {
606 Throwable ex = null;
607 System.out.print(test.getName()+": ");
608 try {
609 test.getMethod("test").invoke(null);
610 } catch (InvocationTargetException e) {
611 ex = e.getCause();
612 } catch (Throwable e) {
613 ex = e;
614 } finally {
615 if (ex == null) {
616 System.out.println("PASSED");
617 } else {
618 failed = true;
619 System.out.println("FAILED");
620 ex.printStackTrace(System.out);
621 }
622 }
623 }
624 }