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 /testlibrary /test/lib /
30 * @modules java.base/jdk.internal.misc
31 * @modules java.base/jdk.internal.vm.annotation
32 * @build sun.hotspot.WhiteBox
33 * @build compiler.stable.TestStableObject
34 *
35 * @run main/bootclasspath/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
36 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
37 * -XX:-TieredCompilation
38 * -XX:+FoldStableValues
39 * compiler.stable.TestStableObject
40 * @run main/bootclasspath/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
41 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
42 * -XX:-TieredCompilation
43 * -XX:+FoldStableValues
44 * compiler.stable.TestStableObject
45 *
46 * @run main/bootclasspath/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
47 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
48 * -XX:-TieredCompilation
49 * -XX:+FoldStableValues
50 * compiler.stable.TestStableObject
51 * @run main/bootclasspath/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
52 * -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
53 * -XX:-TieredCompilation
54 * -XX:+FoldStableValues
55 * compiler.stable.TestStableObject
56 */
57
58 package compiler.stable;
59
60 import jdk.internal.vm.annotation.Stable;
61
62 import java.lang.reflect.InvocationTargetException;
63
64 public class TestStableObject {
65 static final boolean isStableEnabled = StableConfiguration.isStableEnabled;
66
67 public static void main(String[] args) throws Exception {
68 run(DefaultValue.class);
69 run(ObjectStable.class);
70 run(DefaultStaticValue.class);
71 run(StaticObjectStable.class);
72 run(VolatileObjectStable.class);
73
74 // @Stable arrays: Dim 1-4
75 run(ObjectArrayDim1.class);
76 run(ObjectArrayDim2.class);
77 run(ObjectArrayDim3.class);
78 run(ObjectArrayDim4.class);
79
80 // @Stable Object field: dynamic arrays
81 run(ObjectArrayLowerDim0.class);
82 run(ObjectArrayLowerDim1.class);
83 run(ObjectArrayLowerDim2.class);
84
85 // Nested @Stable fields
86 run(NestedStableField.class);
87 run(NestedStableField1.class);
88 run(NestedStableField2.class);
89 run(NestedStableField3.class);
90
91 if (failed) {
92 throw new Error("TEST FAILED");
93 }
94 }
95
96 /* ==================================================== */
97
98 enum Values {A, B, C, D, E, F}
99
100 static class DefaultValue {
101 public @Stable Object v;
102
103 public static final DefaultValue c = new DefaultValue();
104 public static Object get() { return c.v; }
105 public static void test() throws Exception {
106 Object val1 = get();
107 c.v = Values.A; Object val2 = get();
108 assertEquals(val1, null);
109 assertEquals(val2, Values.A);
110 }
111 }
112
113 /* ==================================================== */
114
115 static class ObjectStable {
116 public @Stable Values v;
117
118 public static final ObjectStable c = new ObjectStable ();
119 public static Values get() { return c.v; }
120 public static void test() throws Exception {
121 c.v = Values.A; Values val1 = get();
122 c.v = Values.B; Values val2 = get();
123 assertEquals(val1, Values.A);
124 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
125 }
126 }
127
128 /* ==================================================== */
129
130 static class DefaultStaticValue {
131 public static @Stable Object v;
132
133 public static final DefaultStaticValue c = new DefaultStaticValue();
134 public static Object get() { return c.v; }
135 public static void test() throws Exception {
136 Object val1 = get();
137 c.v = Values.A; Object val2 = get();
138 assertEquals(val1, null);
139 assertEquals(val2, Values.A);
140 }
141 }
142
143 /* ==================================================== */
144
145 static class StaticObjectStable {
146 public static @Stable Values v;
147
148 public static final ObjectStable c = new ObjectStable ();
149 public static Values get() { return c.v; }
150 public static void test() throws Exception {
151 c.v = Values.A; Values val1 = get();
152 c.v = Values.B; Values val2 = get();
153 assertEquals(val1, Values.A);
154 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
155 }
156 }
157
158 /* ==================================================== */
159
160 static class VolatileObjectStable {
161 public @Stable volatile Values v;
162
163 public static final VolatileObjectStable c = new VolatileObjectStable ();
164 public static Values get() { return c.v; }
165 public static void test() throws Exception {
166 c.v = Values.A; Values val1 = get();
167 c.v = Values.B; Values val2 = get();
168 assertEquals(val1, Values.A);
169 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
170 }
171 }
172
173 /* ==================================================== */
174 // @Stable array == field && all components are stable
175
176 static class ObjectArrayDim1 {
177 public @Stable Object[] v;
178
179 public static final ObjectArrayDim1 c = new ObjectArrayDim1();
180 public static Object get() { return c.v[0]; }
181 public static Object get1() { return c.v[10]; }
182 public static Object[] get2() { return c.v; }
183 public static void test() throws Exception {
184 {
185 c.v = new Object[1]; c.v[0] = Values.A; Object val1 = get();
186 c.v[0] = Values.B; Object val2 = get();
187 assertEquals(val1, Values.A);
188 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
189
190 c.v = new Object[1]; c.v[0] = Values.C; Object val3 = get();
191 assertEquals(val3, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
192 : Values.C));
193 }
194
195 {
196 c.v = new Object[20]; c.v[10] = Values.A; Object val1 = get1();
197 c.v[10] = Values.B; Object val2 = get1();
198 assertEquals(val1, Values.A);
199 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
200
201 c.v = new Object[20]; c.v[10] = Values.C; Object val3 = get1();
202 assertEquals(val3, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
203 : Values.C));
204 }
205
206 {
207 c.v = new Object[1]; Object[] val1 = get2();
208 c.v = new Object[1]; Object[] val2 = get2();
209 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
210 }
211 }
212 }
213
214 /* ==================================================== */
215
216 static class ObjectArrayDim2 {
217 public @Stable Object[][] v;
218
219 public static final ObjectArrayDim2 c = new ObjectArrayDim2();
220 public static Object get() { return c.v[0][0]; }
221 public static Object[] get1() { return c.v[0]; }
222 public static Object[][] get2() { return c.v; }
223 public static void test() throws Exception {
224 {
225 c.v = new Object[1][1]; c.v[0][0] = Values.A; Object val1 = get();
226 c.v[0][0] = Values.B; Object val2 = get();
227 assertEquals(val1, Values.A);
228 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
229
230 c.v = new Object[1][1]; c.v[0][0] = Values.C; Object val3 = get();
231 assertEquals(val3, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
232 : Values.C));
233
234 c.v[0] = new Object[1]; c.v[0][0] = Values.D; Object val4 = get();
235 assertEquals(val4, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
236 : Values.D));
237 }
238
239 {
240 c.v = new Object[1][1]; Object[] val1 = get1();
241 c.v[0] = new Object[1]; Object[] val2 = get1();
242 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
243 }
244
245 {
246 c.v = new Object[1][1]; Object[][] val1 = get2();
247 c.v = new Object[1][1]; Object[][] val2 = get2();
248 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
249 }
250 }
251 }
252
253 /* ==================================================== */
254
255 static class ObjectArrayDim3 {
256 public @Stable Object[][][] v;
257
258 public static final ObjectArrayDim3 c = new ObjectArrayDim3();
259 public static Object get() { return c.v[0][0][0]; }
260 public static Object[] get1() { return c.v[0][0]; }
261 public static Object[][] get2() { return c.v[0]; }
262 public static Object[][][] get3() { return c.v; }
263 public static void test() throws Exception {
264 {
265 c.v = new Object[1][1][1]; c.v[0][0][0] = Values.A; Object val1 = get();
266 c.v[0][0][0] = Values.B; Object val2 = get();
267 assertEquals(val1, Values.A);
268 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
269
270 c.v = new Object[1][1][1]; c.v[0][0][0] = Values.C; Object val3 = get();
271 assertEquals(val3, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
272 : Values.C));
273
274 c.v[0] = new Object[1][1]; c.v[0][0][0] = Values.D; Object val4 = get();
275 assertEquals(val4, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
276 : Values.D));
277
278 c.v[0][0] = new Object[1]; c.v[0][0][0] = Values.E; Object val5 = get();
279 assertEquals(val5, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
280 : Values.E));
281 }
282
283 {
284 c.v = new Object[1][1][1]; Object[] val1 = get1();
285 c.v[0][0] = new Object[1]; Object[] val2 = get1();
286 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
287 }
288
289 {
290 c.v = new Object[1][1][1]; Object[][] val1 = get2();
291 c.v[0] = new Object[1][1]; Object[][] val2 = get2();
292 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
293 }
294
295 {
296 c.v = new Object[1][1][1]; Object[][][] val1 = get3();
297 c.v = new Object[1][1][1]; Object[][][] val2 = get3();
298 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
299 }
300 }
301 }
302
303 /* ==================================================== */
304
305 static class ObjectArrayDim4 {
306 public @Stable Object[][][][] v;
307
308 public static final ObjectArrayDim4 c = new ObjectArrayDim4();
309 public static Object get() { return c.v[0][0][0][0]; }
310 public static Object[] get1() { return c.v[0][0][0]; }
311 public static Object[][] get2() { return c.v[0][0]; }
312 public static Object[][][] get3() { return c.v[0]; }
313 public static Object[][][][] get4() { return c.v; }
314 public static void test() throws Exception {
315 {
316 c.v = new Object[1][1][1][1]; c.v[0][0][0][0] = Values.A; Object val1 = get();
317 c.v[0][0][0][0] = Values.B; Object val2 = get();
318 assertEquals(val1, Values.A);
319 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
320
321 c.v = new Object[1][1][1][1]; c.v[0][0][0][0] = Values.C; Object val3 = get();
322 assertEquals(val3, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
323 : Values.C));
324
325 c.v[0] = new Object[1][1][1]; c.v[0][0][0][0] = Values.D; Object val4 = get();
326 assertEquals(val4, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
327 : Values.D));
328
329 c.v[0][0] = new Object[1][1]; c.v[0][0][0][0] = Values.E; Object val5 = get();
330 assertEquals(val5, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
331 : Values.E));
332
333 c.v[0][0][0] = new Object[1]; c.v[0][0][0][0] = Values.F; Object val6 = get();
334 assertEquals(val6, (isStableEnabled ? (isStableEnabled ? Values.A : Values.B)
335 : Values.F));
336 }
337
338 {
339 c.v = new Object[1][1][1][1]; Object[] val1 = get1();
340 c.v[0][0][0] = new Object[1]; Object[] val2 = get1();
341 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
342 }
343
344 {
345 c.v = new Object[1][1][1][1]; Object[][] val1 = get2();
346 c.v[0][0] = new Object[1][1]; Object[][] val2 = get2();
347 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
348 }
349
350 {
351 c.v = new Object[1][1][1][1]; Object[][][] val1 = get3();
352 c.v[0] = new Object[1][1][1]; Object[][][] val2 = get3();
353 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
354 }
355
356 {
357 c.v = new Object[1][1][1][1]; Object[][][][] val1 = get4();
358 c.v = new Object[1][1][1][1]; Object[][][][] val2 = get4();
359 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
360 }
361 }
362 }
363
364 /* ==================================================== */
365 // Dynamic Dim is higher than static
366 static class ObjectArrayLowerDim0 {
367 public @Stable Object v;
368
369 public static final ObjectArrayLowerDim0 c = new ObjectArrayLowerDim0();
370 public static Object get() { return ((Object[])c.v)[0]; }
371 public static Object[] get1() { return (Object[])c.v; }
372
373 public static void test() throws Exception {
374 {
375 c.v = new Object[1]; ((Object[])c.v)[0] = Values.A; Object val1 = get();
376 ((Object[])c.v)[0] = Values.B; Object val2 = get();
377
378 assertEquals(val1, Values.A);
379 assertEquals(val2, Values.B);
380 }
381
382 {
383 c.v = new Object[1]; Object[] val1 = get1();
384 c.v = new Object[1]; Object[] val2 = get1();
385 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
386 }
387 }
388 }
389
390 /* ==================================================== */
391
392 static class ObjectArrayLowerDim1 {
393 public @Stable Object[] v;
394
395 public static final ObjectArrayLowerDim1 c = new ObjectArrayLowerDim1();
396 public static Object get() { return ((Object[][])c.v)[0][0]; }
397 public static Object[] get1() { return (Object[])(c.v[0]); }
398 public static Object[] get2() { return c.v; }
399
400 public static void test() throws Exception {
401 {
402 c.v = new Object[1][1]; ((Object[][])c.v)[0][0] = Values.A; Object val1 = get();
403 ((Object[][])c.v)[0][0] = Values.B; Object val2 = get();
404
405 assertEquals(val1, Values.A);
406 assertEquals(val2, Values.B);
407 }
408
409 {
410 c.v = new Object[1][1]; c.v[0] = new Object[0]; Object[] val1 = get1();
411 c.v[0] = new Object[0]; Object[] val2 = get1();
412
413 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
414 }
415
416 {
417 c.v = new Object[0][0]; Object[] val1 = get2();
418 c.v = new Object[0][0]; Object[] val2 = get2();
419
420 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
421 }
422 }
423 }
424
425 /* ==================================================== */
426
427 static class ObjectArrayLowerDim2 {
428 public @Stable Object[][] v;
429
430 public static final ObjectArrayLowerDim2 c = new ObjectArrayLowerDim2();
431 public static Object get() { return ((Object[][][])c.v)[0][0][0]; }
432 public static Object[] get1() { return (Object[])(c.v[0][0]); }
433 public static Object[][] get2() { return (Object[][])(c.v[0]); }
434 public static Object[][] get3() { return c.v; }
435
436 public static void test() throws Exception {
437 {
438 c.v = new Object[1][1][1]; ((Object[][][])c.v)[0][0][0] = Values.A; Object val1 = get();
439 ((Object[][][])c.v)[0][0][0] = Values.B; Object val2 = get();
440
441 assertEquals(val1, Values.A);
442 assertEquals(val2, Values.B);
443 }
444
445 {
446 c.v = new Object[1][1][1]; c.v[0][0] = new Object[0]; Object[] val1 = get1();
447 c.v[0][0] = new Object[0]; Object[] val2 = get1();
448
449 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
450 }
451
452 {
453 c.v = new Object[1][1][1]; c.v[0] = new Object[0][0]; Object[][] val1 = get2();
454 c.v[0] = new Object[0][0]; Object[][] val2 = get2();
455
456 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
457 }
458
459 {
460 c.v = new Object[0][0][0]; Object[][] val1 = get3();
461 c.v = new Object[0][0][0]; Object[][] val2 = get3();
462
463 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
464 }
465 }
466 }
467
468 /* ==================================================== */
469
470 static class NestedStableField {
471 static class A {
472 public @Stable Object a;
473
474 }
475 public @Stable A v;
476
477 public static final NestedStableField c = new NestedStableField();
478 public static A get() { return c.v; }
479 public static Object get1() { return get().a; }
480
481 public static void test() throws Exception {
482 {
483 c.v = new A(); c.v.a = Values.A; A val1 = get();
484 c.v.a = Values.B; A val2 = get();
485
486 assertEquals(val1.a, Values.B);
487 assertEquals(val2.a, Values.B);
488 }
489
490 {
491 c.v = new A(); c.v.a = Values.A; Object val1 = get1();
492 c.v.a = Values.B; Object val2 = get1();
493 c.v = new A(); c.v.a = Values.C; Object val3 = get1();
494
495 assertEquals(val1, Values.A);
496 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
497 assertEquals(val3, (isStableEnabled ? Values.A : Values.C));
498 }
499 }
500 }
501
502 /* ==================================================== */
503
504 static class NestedStableField1 {
505 static class A {
506 public @Stable Object a;
507 public @Stable A next;
508 }
509 public @Stable A v;
510
511 public static final NestedStableField1 c = new NestedStableField1();
512 public static A get() { return c.v.next.next.next.next.next.next.next; }
513 public static Object get1() { return get().a; }
514
515 public static void test() throws Exception {
516 {
517 c.v = new A(); c.v.next = new A(); c.v.next.next = c.v;
518 c.v.a = Values.A; c.v.next.a = Values.A; A val1 = get();
519 c.v.a = Values.B; c.v.next.a = Values.B; A val2 = get();
520
521 assertEquals(val1.a, Values.B);
522 assertEquals(val2.a, Values.B);
523 }
524
525 {
526 c.v = new A(); c.v.next = c.v;
527 c.v.a = Values.A; Object val1 = get1();
528 c.v.a = Values.B; Object val2 = get1();
529 c.v = new A(); c.v.next = c.v;
530 c.v.a = Values.C; Object val3 = get1();
531
532 assertEquals(val1, Values.A);
533 assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
534 assertEquals(val3, (isStableEnabled ? Values.A : Values.C));
535 }
536 }
537 }
538 /* ==================================================== */
539
540 static class NestedStableField2 {
541 static class A {
542 public @Stable Object a;
543 public @Stable A left;
544 public A right;
545 }
546
547 public @Stable A v;
548
549 public static final NestedStableField2 c = new NestedStableField2();
550 public static Object get() { return c.v.left.left.left.a; }
551 public static Object get1() { return c.v.left.left.right.left.a; }
552
553 public static void test() throws Exception {
554 {
555 c.v = new A(); c.v.left = c.v.right = c.v;
556 c.v.a = Values.A; Object val1 = get(); Object val2 = get1();
557 c.v.a = Values.B; Object val3 = get(); Object val4 = get1();
558
559 assertEquals(val1, Values.A);
560 assertEquals(val3, (isStableEnabled ? Values.A : Values.B));
561
562 assertEquals(val2, Values.A);
563 assertEquals(val4, Values.B);
564 }
565 }
566 }
567
568 /* ==================================================== */
569
570 static class NestedStableField3 {
571 static class A {
572 public @Stable Object a;
573 public @Stable A[] left;
574 public A[] right;
575 }
576
577 public @Stable A[] v;
578
579 public static final NestedStableField3 c = new NestedStableField3();
580 public static Object get() { return c.v[0].left[1].left[0].left[1].a; }
581 public static Object get1() { return c.v[1].left[0].left[1].right[0].left[1].a; }
582
583 public static void test() throws Exception {
584 {
585 A elem = new A();
586 c.v = new A[] { elem, elem }; c.v[0].left = c.v[0].right = c.v;
587 elem.a = Values.A; Object val1 = get(); Object val2 = get1();
588 elem.a = Values.B; Object val3 = get(); Object val4 = get1();
589
590 assertEquals(val1, Values.A);
591 assertEquals(val3, (isStableEnabled ? Values.A : Values.B));
592
593 assertEquals(val2, Values.A);
594 assertEquals(val4, Values.B);
595 }
596 }
597 }
598
599 /* ==================================================== */
600 // Auxiliary methods
601 static void assertEquals(Object i, Object j) { if (i != j) throw new AssertionError(i + " != " + j); }
602 static void assertTrue(boolean b) { if (!b) throw new AssertionError(); }
603
604 static boolean failed = false;
605
606 public static void run(Class<?> test) {
607 Throwable ex = null;
608 System.out.print(test.getName()+": ");
609 try {
610 test.getMethod("test").invoke(null);
611 } catch (InvocationTargetException e) {
612 ex = e.getCause();
613 } catch (Throwable e) {
614 ex = e;
615 } finally {
616 if (ex == null) {
617 System.out.println("PASSED");
618 } else {
619 failed = true;
620 System.out.println("FAILED");
621 ex.printStackTrace(System.out);
622 }
623 }
624 }
625 }