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 TestStableByte
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.TestStableByte
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.TestStableByte
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.TestStableByte
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.TestStableByte
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.TestStableByte
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 TestStableByte {
65 static final boolean isStableEnabled = StableConfiguration.isStableEnabled;
66
67 public static void main(String[] args) throws Exception {
68 run(DefaultValue.class);
69 run(ByteStable.class);
70 run(DefaultStaticValue.class);
71 run(StaticByteStable.class);
72 run(VolatileByteStable.class);
73
74 // @Stable arrays: Dim 1-4
75 run(ByteArrayDim1.class);
76 run(ByteArrayDim2.class);
77 run(ByteArrayDim3.class);
78 run(ByteArrayDim4.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 static class DefaultValue {
99 public @Stable byte v;
100
101 public static final DefaultValue c = new DefaultValue();
102 public static byte get() { return c.v; }
103 public static void test() throws Exception {
104 byte val1 = get();
105 c.v = 1; byte val2 = get();
106 assertEquals(val1, 0);
107 assertEquals(val2, 1);
108 }
109 }
110
111 /* ==================================================== */
112
113 static class ByteStable {
114 public @Stable byte v;
115
116 public static final ByteStable c = new ByteStable();
117 public static byte get() { return c.v; }
118 public static void test() throws Exception {
119 c.v = 5; byte val1 = get();
120 c.v = 127; byte val2 = get();
121 assertEquals(val1, 5);
122 assertEquals(val2, (isStableEnabled ? 5 : 127));
123 }
124 }
125
126 /* ==================================================== */
127
128 static class DefaultStaticValue {
129 public static @Stable byte v;
130
131 public static final DefaultStaticValue c = new DefaultStaticValue();
132 public static byte get() { return c.v; }
133 public static void test() throws Exception {
134 byte val1 = get();
135 c.v = 1; byte val2 = get();
136 assertEquals(val1, 0);
137 assertEquals(val2, 1);
138 }
139 }
140
141 /* ==================================================== */
142
143 static class StaticByteStable {
144 public static @Stable byte v;
145
146 public static final StaticByteStable c = new StaticByteStable();
147 public static byte get() { return c.v; }
148 public static void test() throws Exception {
149 c.v = 5; byte val1 = get();
150 c.v = 127; byte val2 = get();
151 assertEquals(val1, 5);
152 assertEquals(val2, (isStableEnabled ? 5 : 127));
153 }
154 }
155
156 /* ==================================================== */
157
158 static class VolatileByteStable {
159 public @Stable volatile byte v;
160
161 public static final VolatileByteStable c = new VolatileByteStable();
162 public static byte get() { return c.v; }
163 public static void test() throws Exception {
164 c.v = 5; byte val1 = get();
165 c.v = 127; byte val2 = get();
166 assertEquals(val1, 5);
167 assertEquals(val2, (isStableEnabled ? 5 : 127));
168 }
169 }
170
171 /* ==================================================== */
172 // @Stable array == field && all components are stable
173
174 static class ByteArrayDim1 {
175 public @Stable byte[] v;
176
177 public static final ByteArrayDim1 c = new ByteArrayDim1();
178 public static byte get() { return c.v[0]; }
179 public static byte get1() { return c.v[10]; }
180 public static byte[] get2() { return c.v; }
181 public static void test() throws Exception {
182 {
183 c.v = new byte[1]; c.v[0] = 1; byte val1 = get();
184 c.v[0] = 2; byte val2 = get();
185 assertEquals(val1, 1);
186 assertEquals(val2, (isStableEnabled ? 1 : 2));
187
188 c.v = new byte[1]; c.v[0] = 3; byte val3 = get();
189 assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 1 : 2)
190 : 3));
191 }
192
193 {
194 c.v = new byte[20]; c.v[10] = 1; byte val1 = get1();
195 c.v[10] = 2; byte val2 = get1();
196 assertEquals(val1, 1);
197 assertEquals(val2, (isStableEnabled ? 1 : 2));
198
199 c.v = new byte[20]; c.v[10] = 3; byte val3 = get1();
200 assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 1 : 2)
201 : 3));
202 }
203
204 {
205 c.v = new byte[1]; byte[] val1 = get2();
206 c.v = new byte[1]; byte[] val2 = get2();
207 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
208 }
209 }
210 }
211
212 /* ==================================================== */
213
214 static class ByteArrayDim2 {
215 public @Stable byte[][] v;
216
217 public static final ByteArrayDim2 c = new ByteArrayDim2();
218 public static byte get() { return c.v[0][0]; }
219 public static byte[] get1() { return c.v[0]; }
220 public static byte[][] get2() { return c.v; }
221 public static void test() throws Exception {
222 {
223 c.v = new byte[1][1]; c.v[0][0] = 1; byte val1 = get();
224 c.v[0][0] = 2; byte val2 = get();
225 assertEquals(val1, 1);
226 assertEquals(val2, (isStableEnabled ? 1 : 2));
227
228 c.v = new byte[1][1]; c.v[0][0] = 3; byte val3 = get();
229 assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 1 : 2)
230 : 3));
231
232 c.v[0] = new byte[1]; c.v[0][0] = 4; byte val4 = get();
233 assertEquals(val4, (isStableEnabled ? (isStableEnabled ? 1 : 2)
234 : 4));
235 }
236
237 {
238 c.v = new byte[1][1]; byte[] val1 = get1();
239 c.v[0] = new byte[1]; byte[] val2 = get1();
240 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
241 }
242
243 {
244 c.v = new byte[1][1]; byte[][] val1 = get2();
245 c.v = new byte[1][1]; byte[][] val2 = get2();
246 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
247 }
248 }
249 }
250
251 /* ==================================================== */
252
253 static class ByteArrayDim3 {
254 public @Stable byte[][][] v;
255
256 public static final ByteArrayDim3 c = new ByteArrayDim3();
257 public static byte get() { return c.v[0][0][0]; }
258 public static byte[] get1() { return c.v[0][0]; }
259 public static byte[][] get2() { return c.v[0]; }
260 public static byte[][][] get3() { return c.v; }
261 public static void test() throws Exception {
262 {
263 c.v = new byte[1][1][1]; c.v[0][0][0] = 1; byte val1 = get();
264 c.v[0][0][0] = 2; byte val2 = get();
265 assertEquals(val1, 1);
266 assertEquals(val2, (isStableEnabled ? 1 : 2));
267
268 c.v = new byte[1][1][1]; c.v[0][0][0] = 3; byte val3 = get();
269 assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 1 : 2)
270 : 3));
271
272 c.v[0] = new byte[1][1]; c.v[0][0][0] = 4; byte val4 = get();
273 assertEquals(val4, (isStableEnabled ? (isStableEnabled ? 1 : 2)
274 : 4));
275
276 c.v[0][0] = new byte[1]; c.v[0][0][0] = 5; byte val5 = get();
277 assertEquals(val5, (isStableEnabled ? (isStableEnabled ? 1 : 2)
278 : 5));
279 }
280
281 {
282 c.v = new byte[1][1][1]; byte[] val1 = get1();
283 c.v[0][0] = new byte[1]; byte[] val2 = get1();
284 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
285 }
286
287 {
288 c.v = new byte[1][1][1]; byte[][] val1 = get2();
289 c.v[0] = new byte[1][1]; byte[][] val2 = get2();
290 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
291 }
292
293 {
294 c.v = new byte[1][1][1]; byte[][][] val1 = get3();
295 c.v = new byte[1][1][1]; byte[][][] val2 = get3();
296 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
297 }
298 }
299 }
300
301 /* ==================================================== */
302
303 static class ByteArrayDim4 {
304 public @Stable byte[][][][] v;
305
306 public static final ByteArrayDim4 c = new ByteArrayDim4();
307 public static byte get() { return c.v[0][0][0][0]; }
308 public static byte[] get1() { return c.v[0][0][0]; }
309 public static byte[][] get2() { return c.v[0][0]; }
310 public static byte[][][] get3() { return c.v[0]; }
311 public static byte[][][][] get4() { return c.v; }
312 public static void test() throws Exception {
313 {
314 c.v = new byte[1][1][1][1]; c.v[0][0][0][0] = 1; byte val1 = get();
315 c.v[0][0][0][0] = 2; byte val2 = get();
316 assertEquals(val1, 1);
317 assertEquals(val2, (isStableEnabled ? 1 : 2));
318
319 c.v = new byte[1][1][1][1]; c.v[0][0][0][0] = 3; byte val3 = get();
320 assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 1 : 2)
321 : 3));
322
323 c.v[0] = new byte[1][1][1]; c.v[0][0][0][0] = 4; byte val4 = get();
324 assertEquals(val4, (isStableEnabled ? (isStableEnabled ? 1 : 2)
325 : 4));
326
327 c.v[0][0] = new byte[1][1]; c.v[0][0][0][0] = 5; byte val5 = get();
328 assertEquals(val5, (isStableEnabled ? (isStableEnabled ? 1 : 2)
329 : 5));
330
331 c.v[0][0][0] = new byte[1]; c.v[0][0][0][0] = 6; byte val6 = get();
332 assertEquals(val6, (isStableEnabled ? (isStableEnabled ? 1 : 2)
333 : 6));
334 }
335
336 {
337 c.v = new byte[1][1][1][1]; byte[] val1 = get1();
338 c.v[0][0][0] = new byte[1]; byte[] val2 = get1();
339 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
340 }
341
342 {
343 c.v = new byte[1][1][1][1]; byte[][] val1 = get2();
344 c.v[0][0] = new byte[1][1]; byte[][] val2 = get2();
345 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
346 }
347
348 {
349 c.v = new byte[1][1][1][1]; byte[][][] val1 = get3();
350 c.v[0] = new byte[1][1][1]; byte[][][] val2 = get3();
351 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
352 }
353
354 {
355 c.v = new byte[1][1][1][1]; byte[][][][] val1 = get4();
356 c.v = new byte[1][1][1][1]; byte[][][][] val2 = get4();
357 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
358 }
359
360 }
361 }
362
363 /* ==================================================== */
364 // Dynamic Dim is higher than static
365
366 static class ObjectArrayLowerDim0 {
367 public @Stable Object v;
368
369 public static final ObjectArrayLowerDim0 c = new ObjectArrayLowerDim0();
370 public static byte get() { return ((byte[])c.v)[0]; }
371 public static byte[] get1() { return (byte[])c.v; }
372
373 public static void test() throws Exception {
374 {
375 c.v = new byte[1]; ((byte[])c.v)[0] = 1; byte val1 = get();
376 ((byte[])c.v)[0] = 2; byte val2 = get();
377
378 assertEquals(val1, 1);
379 assertEquals(val2, 2);
380 }
381
382 {
383 c.v = new byte[1]; byte[] val1 = get1();
384 c.v = new byte[1]; byte[] 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 byte get() { return ((byte[][])c.v)[0][0]; }
397 public static byte[] get1() { return (byte[])(c.v[0]); }
398 public static Object[] get2() { return c.v; }
399
400 public static void test() throws Exception {
401 {
402 c.v = new byte[1][1]; ((byte[][])c.v)[0][0] = 1; byte val1 = get();
403 ((byte[][])c.v)[0][0] = 2; byte val2 = get();
404
405 assertEquals(val1, 1);
406 assertEquals(val2, 2);
407 }
408
409 {
410 c.v = new byte[1][1]; c.v[0] = new byte[0]; byte[] val1 = get1();
411 c.v[0] = new byte[0]; byte[] val2 = get1();
412
413 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
414 }
415
416 {
417 c.v = new byte[0][0]; Object[] val1 = get2();
418 c.v = new byte[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 byte get() { return ((byte[][][])c.v)[0][0][0]; }
432 public static byte[] get1() { return (byte[])(c.v[0][0]); }
433 public static byte[][] get2() { return (byte[][])(c.v[0]); }
434 public static Object[][] get3() { return c.v; }
435
436 public static void test() throws Exception {
437 {
438 c.v = new byte[1][1][1]; ((byte[][][])c.v)[0][0][0] = 1; byte val1 = get();
439 ((byte[][][])c.v)[0][0][0] = 2; byte val2 = get();
440
441 assertEquals(val1, 1);
442 assertEquals(val2, 2);
443 }
444
445 {
446 c.v = new byte[1][1][1]; c.v[0][0] = new byte[0]; byte[] val1 = get1();
447 c.v[0][0] = new byte[0]; byte[] val2 = get1();
448
449 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
450 }
451
452 {
453 c.v = new byte[1][1][1]; c.v[0] = new byte[0][0]; byte[][] val1 = get2();
454 c.v[0] = new byte[0][0]; byte[][] val2 = get2();
455
456 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
457 }
458
459 {
460 c.v = new byte[0][0][0]; Object[][] val1 = get3();
461 c.v = new byte[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 byte 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 byte get1() { return get().a; }
480
481 public static void test() throws Exception {
482 {
483 c.v = new A(); c.v.a = 1; A val1 = get();
484 c.v.a = 2; A val2 = get();
485
486 assertEquals(val1.a, 2);
487 assertEquals(val2.a, 2);
488 }
489
490 {
491 c.v = new A(); c.v.a = 1; byte val1 = get1();
492 c.v.a = 2; byte val2 = get1();
493 c.v = new A(); c.v.a = 3; byte val3 = get1();
494
495 assertEquals(val1, 1);
496 assertEquals(val2, (isStableEnabled ? 1 : 2));
497 assertEquals(val3, (isStableEnabled ? 1 : 3));
498 }
499 }
500 }
501
502 /* ==================================================== */
503
504 static class NestedStableField1 {
505 static class A {
506 public @Stable byte 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 byte 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 = 1; c.v.next.a = 1; A val1 = get();
519 c.v.a = 2; c.v.next.a = 2; A val2 = get();
520
521 assertEquals(val1.a, 2);
522 assertEquals(val2.a, 2);
523 }
524
525 {
526 c.v = new A(); c.v.next = c.v;
527 c.v.a = 1; byte val1 = get1();
528 c.v.a = 2; byte val2 = get1();
529 c.v = new A(); c.v.next = c.v;
530 c.v.a = 3; byte val3 = get1();
531
532 assertEquals(val1, 1);
533 assertEquals(val2, (isStableEnabled ? 1 : 2));
534 assertEquals(val3, (isStableEnabled ? 1 : 3));
535 }
536 }
537 }
538 /* ==================================================== */
539
540 static class NestedStableField2 {
541 static class A {
542 public @Stable byte 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 byte get() { return c.v.left.left.left.a; }
551 public static byte 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 = 1; byte val1 = get(); byte val2 = get1();
557 c.v.a = 2; byte val3 = get(); byte val4 = get1();
558
559 assertEquals(val1, 1);
560 assertEquals(val3, (isStableEnabled ? 1 : 2));
561
562 assertEquals(val2, 1);
563 assertEquals(val4, 2);
564 }
565 }
566 }
567
568 /* ==================================================== */
569
570 static class NestedStableField3 {
571 static class A {
572 public @Stable byte 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 byte get() { return c.v[0].left[1].left[0].left[1].a; }
581 public static byte 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 = 1; byte val1 = get(); byte val2 = get1();
588 elem.a = 2; byte val3 = get(); byte val4 = get1();
589
590 assertEquals(val1, 1);
591 assertEquals(val3, (isStableEnabled ? 1 : 2));
592
593 assertEquals(val2, 1);
594 assertEquals(val4, 2);
595 }
596 }
597 }
598
599 /* ==================================================== */
600 // Auxiliary methods
601 static void assertEquals(int i, int 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 }