TestStableInt.java revision 11833:1cbffa2beba6
1/*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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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).
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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25
26/*
27 * @test TestStableInt
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.TestStableInt
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.TestStableInt
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.TestStableInt
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.TestStableInt
55 */
56
57package compiler.stable;
58
59import jdk.internal.vm.annotation.Stable;
60
61import java.lang.reflect.InvocationTargetException;
62
63public class TestStableInt {
64    static final boolean isStableEnabled    = StableConfiguration.isStableEnabled;
65
66    public static void main(String[] args) throws Exception {
67        run(DefaultValue.class);
68        run(IntStable.class);
69        run(DefaultStaticValue.class);
70        run(StaticIntStable.class);
71        run(VolatileIntStable.class);
72
73        // @Stable arrays: Dim 1-4
74        run(IntArrayDim1.class);
75        run(IntArrayDim2.class);
76        run(IntArrayDim3.class);
77        run(IntArrayDim4.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    static class DefaultValue {
98        public @Stable int v;
99
100        public static final DefaultValue c = new DefaultValue();
101        public static int get() { return c.v; }
102        public static void test() throws Exception {
103                     int val1 = get();
104            c.v = 1; int val2 = get();
105            assertEquals(val1, 0);
106            assertEquals(val2, 1);
107        }
108    }
109
110    /* ==================================================== */
111
112    static class IntStable {
113        public @Stable int v;
114
115        public static final IntStable c = new IntStable();
116        public static int get() { return c.v; }
117        public static void test() throws Exception {
118            c.v = 1; int val1 = get();
119            c.v = 2; int val2 = get();
120            assertEquals(val1, 1);
121            assertEquals(val2, (isStableEnabled ? 1 : 2));
122        }
123    }
124
125    /* ==================================================== */
126
127    static class DefaultStaticValue {
128        public static @Stable int v;
129
130        public static final DefaultStaticValue c = new DefaultStaticValue();
131        public static int get() { return c.v; }
132        public static void test() throws Exception {
133                     int val1 = get();
134            c.v = 1; int val2 = get();
135            assertEquals(val1, 0);
136            assertEquals(val2, 1);
137        }
138    }
139
140    /* ==================================================== */
141
142    static class StaticIntStable {
143        public static @Stable int v;
144
145        public static final StaticIntStable c = new StaticIntStable();
146        public static int get() { return c.v; }
147        public static void test() throws Exception {
148            c.v = 1; int val1 = get();
149            c.v = 2; int val2 = get();
150            assertEquals(val1, 1);
151            assertEquals(val2, (isStableEnabled ? 1 : 2));
152        }
153    }
154
155    /* ==================================================== */
156
157    static class VolatileIntStable {
158        public @Stable volatile int v;
159
160        public static final VolatileIntStable c = new VolatileIntStable();
161        public static int get() { return c.v; }
162        public static void test() throws Exception {
163            c.v = 1; int val1 = get();
164            c.v = 2; int val2 = get();
165            assertEquals(val1, 1);
166            assertEquals(val2, (isStableEnabled ? 1 : 2));
167        }
168    }
169
170    /* ==================================================== */
171    // @Stable array == field && all components are stable
172
173    static class IntArrayDim1 {
174        public @Stable int[] v;
175
176        public static final IntArrayDim1 c = new IntArrayDim1();
177        public static int get() { return c.v[0]; }
178        public static int get1() { return c.v[10]; }
179        public static int[] get2() { return c.v; }
180        public static void test() throws Exception {
181            {
182                c.v = new int[1]; c.v[0] = 1; int val1 = get();
183                                  c.v[0] = 2; int val2 = get();
184                assertEquals(val1, 1);
185                assertEquals(val2, (isStableEnabled ? 1 : 2));
186
187                c.v = new int[1]; c.v[0] = 3; int val3 = get();
188                assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 1 : 2)
189                                                    : 3));
190            }
191
192            {
193                c.v = new int[20]; c.v[10] = 1; int val1 = get1();
194                                   c.v[10] = 2; int val2 = get1();
195                assertEquals(val1, 1);
196                assertEquals(val2, (isStableEnabled ? 1 : 2));
197
198                c.v = new int[20]; c.v[10] = 3; int val3 = get1();
199                assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 1 : 2)
200                                                    : 3));
201            }
202
203            {
204                c.v = new int[1]; int[] val1 = get2();
205                c.v = new int[1]; int[] val2 = get2();
206                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
207            }
208        }
209    }
210
211    /* ==================================================== */
212
213    static class IntArrayDim2 {
214        public @Stable int[][] v;
215
216        public static final IntArrayDim2 c = new IntArrayDim2();
217        public static int get() { return c.v[0][0]; }
218        public static int[] get1() { return c.v[0]; }
219        public static int[][] get2() { return c.v; }
220        public static void test() throws Exception {
221            {
222                c.v = new int[1][1]; c.v[0][0] = 1; int val1 = get();
223                                     c.v[0][0] = 2; int val2 = get();
224                assertEquals(val1, 1);
225                assertEquals(val2, (isStableEnabled ? 1 : 2));
226
227                c.v = new int[1][1]; c.v[0][0] = 3; int val3 = get();
228                assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 1 : 2)
229                                                    : 3));
230
231                c.v[0] = new int[1]; c.v[0][0] = 4; int val4 = get();
232                assertEquals(val4, (isStableEnabled ? (isStableEnabled ? 1 : 2)
233                                                    : 4));
234            }
235
236            {
237                c.v = new int[1][1]; int[] val1 = get1();
238                c.v[0] = new int[1]; int[] val2 = get1();
239                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
240            }
241
242            {
243                c.v = new int[1][1]; int[][] val1 = get2();
244                c.v = new int[1][1]; int[][] val2 = get2();
245                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
246            }
247        }
248    }
249
250    /* ==================================================== */
251
252    static class IntArrayDim3 {
253        public @Stable int[][][] v;
254
255        public static final IntArrayDim3 c = new IntArrayDim3();
256        public static int get() { return c.v[0][0][0]; }
257        public static int[] get1() { return c.v[0][0]; }
258        public static int[][] get2() { return c.v[0]; }
259        public static int[][][] get3() { return c.v; }
260        public static void test() throws Exception {
261            {
262                c.v = new int[1][1][1]; c.v[0][0][0] = 1; int val1 = get();
263                                        c.v[0][0][0] = 2; int val2 = get();
264                assertEquals(val1, 1);
265                assertEquals(val2, (isStableEnabled ? 1 : 2));
266
267                c.v = new int[1][1][1]; c.v[0][0][0] = 3; int val3 = get();
268                assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 1 : 2)
269                                                    : 3));
270
271                c.v[0] = new int[1][1]; c.v[0][0][0] = 4; int val4 = get();
272                assertEquals(val4, (isStableEnabled ? (isStableEnabled ? 1 : 2)
273                                                    : 4));
274
275                c.v[0][0] = new int[1]; c.v[0][0][0] = 5; int val5 = get();
276                assertEquals(val5, (isStableEnabled ? (isStableEnabled ? 1 : 2)
277                                                    : 5));
278            }
279
280            {
281                c.v = new int[1][1][1]; int[] val1 = get1();
282                c.v[0][0] = new int[1]; int[] val2 = get1();
283                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
284            }
285
286            {
287                c.v = new int[1][1][1]; int[][] val1 = get2();
288                c.v[0] = new int[1][1]; int[][] val2 = get2();
289                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
290            }
291
292            {
293                c.v = new int[1][1][1]; int[][][] val1 = get3();
294                c.v = new int[1][1][1]; int[][][] val2 = get3();
295                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
296            }
297        }
298    }
299
300    /* ==================================================== */
301
302    static class IntArrayDim4 {
303        public @Stable int[][][][] v;
304
305        public static final IntArrayDim4 c = new IntArrayDim4();
306        public static int get() { return c.v[0][0][0][0]; }
307        public static int[] get1() { return c.v[0][0][0]; }
308        public static int[][] get2() { return c.v[0][0]; }
309        public static int[][][] get3() { return c.v[0]; }
310        public static int[][][][] get4() { return c.v; }
311        public static void test() throws Exception {
312            {
313                c.v = new int[1][1][1][1]; c.v[0][0][0][0] = 1; int val1 = get();
314                                           c.v[0][0][0][0] = 2; int val2 = get();
315                assertEquals(val1, 1);
316                assertEquals(val2, (isStableEnabled ? 1 : 2));
317
318                c.v = new int[1][1][1][1]; c.v[0][0][0][0] = 3; int val3 = get();
319                assertEquals(val3, (isStableEnabled ? (isStableEnabled ? 1 : 2)
320                                                    : 3));
321
322                c.v[0] = new int[1][1][1]; c.v[0][0][0][0] = 4; int val4 = get();
323                assertEquals(val4, (isStableEnabled ? (isStableEnabled ? 1 : 2)
324                                                    : 4));
325
326                c.v[0][0] = new int[1][1]; c.v[0][0][0][0] = 5; int val5 = get();
327                assertEquals(val5, (isStableEnabled ? (isStableEnabled ? 1 : 2)
328                                                    : 5));
329
330                c.v[0][0][0] = new int[1]; c.v[0][0][0][0] = 6; int val6 = get();
331                assertEquals(val6, (isStableEnabled ? (isStableEnabled ? 1 : 2)
332                                                    : 6));
333            }
334
335            {
336                c.v = new int[1][1][1][1]; int[] val1 = get1();
337                c.v[0][0][0] = new int[1]; int[] val2 = get1();
338                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
339            }
340
341            {
342                c.v = new int[1][1][1][1]; int[][] val1 = get2();
343                c.v[0][0] = new int[1][1]; int[][] val2 = get2();
344                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
345            }
346
347            {
348                c.v = new int[1][1][1][1]; int[][][] val1 = get3();
349                c.v[0] = new int[1][1][1]; int[][][] val2 = get3();
350                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
351            }
352
353            {
354                c.v = new int[1][1][1][1]; int[][][][] val1 = get4();
355                c.v = new int[1][1][1][1]; int[][][][] val2 = get4();
356                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
357            }
358        }
359    }
360
361    /* ==================================================== */
362    // Dynamic Dim is higher than static
363    static class ObjectArrayLowerDim0 {
364        public @Stable Object v;
365
366        public static final ObjectArrayLowerDim0 c = new ObjectArrayLowerDim0();
367        public static int get() { return ((int[])c.v)[0]; }
368        public static int[] get1() { return (int[])c.v; }
369
370        public static void test() throws Exception {
371            {
372                c.v = new int[1]; ((int[])c.v)[0] = 1; int val1 = get();
373                                  ((int[])c.v)[0] = 2; int val2 = get();
374
375                assertEquals(val1, 1);
376                assertEquals(val2, 2);
377            }
378
379            {
380                c.v = new int[1]; int[] val1 = get1();
381                c.v = new int[1]; int[] val2 = get1();
382                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
383            }
384        }
385    }
386
387    /* ==================================================== */
388
389    static class ObjectArrayLowerDim1 {
390        public @Stable Object[] v;
391
392        public static final ObjectArrayLowerDim1 c = new ObjectArrayLowerDim1();
393        public static int get() { return ((int[][])c.v)[0][0]; }
394        public static int[] get1() { return (int[])(c.v[0]); }
395        public static Object[] get2() { return c.v; }
396
397        public static void test() throws Exception {
398            {
399                c.v = new int[1][1]; ((int[][])c.v)[0][0] = 1; int val1 = get();
400                                     ((int[][])c.v)[0][0] = 2; int val2 = get();
401
402                assertEquals(val1, 1);
403                assertEquals(val2, 2);
404            }
405
406            {
407                c.v = new int[1][1]; c.v[0] = new int[0]; int[] val1 = get1();
408                                     c.v[0] = new int[0]; int[] val2 = get1();
409
410                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
411            }
412
413            {
414                c.v = new int[0][0]; Object[] val1 = get2();
415                c.v = new int[0][0]; Object[] val2 = get2();
416
417                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
418            }
419        }
420    }
421
422    /* ==================================================== */
423
424    static class ObjectArrayLowerDim2 {
425        public @Stable Object[][] v;
426
427        public static final ObjectArrayLowerDim2 c = new ObjectArrayLowerDim2();
428        public static int get() { return ((int[][][])c.v)[0][0][0]; }
429        public static int[] get1() { return (int[])(c.v[0][0]); }
430        public static int[][] get2() { return (int[][])(c.v[0]); }
431        public static Object[][] get3() { return c.v; }
432
433        public static void test() throws Exception {
434            {
435                c.v = new int[1][1][1]; ((int[][][])c.v)[0][0][0] = 1; int val1 = get();
436                                        ((int[][][])c.v)[0][0][0] = 2; int val2 = get();
437
438                assertEquals(val1, 1);
439                assertEquals(val2, 2);
440            }
441
442            {
443                c.v = new int[1][1][1]; c.v[0][0] = new int[0]; int[] val1 = get1();
444                                        c.v[0][0] = new int[0]; int[] val2 = get1();
445
446                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
447            }
448
449            {
450                c.v = new int[1][1][1]; c.v[0] = new int[0][0]; int[][] val1 = get2();
451                                        c.v[0] = new int[0][0]; int[][] val2 = get2();
452
453                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
454            }
455
456            {
457                c.v = new int[0][0][0]; Object[][] val1 = get3();
458                c.v = new int[0][0][0]; Object[][] val2 = get3();
459
460                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
461            }
462        }
463    }
464
465    /* ==================================================== */
466
467    static class NestedStableField {
468        static class A {
469            public @Stable int a;
470
471        }
472        public @Stable A v;
473
474        public static final NestedStableField c = new NestedStableField();
475        public static A get() { return c.v; }
476        public static int get1() { return get().a; }
477
478        public static void test() throws Exception {
479            {
480                c.v = new A(); c.v.a = 1; A val1 = get();
481                               c.v.a = 2; A val2 = get();
482
483                assertEquals(val1.a, 2);
484                assertEquals(val2.a, 2);
485            }
486
487            {
488                c.v = new A(); c.v.a = 1; int val1 = get1();
489                               c.v.a = 2; int val2 = get1();
490                c.v = new A(); c.v.a = 3; int val3 = get1();
491
492                assertEquals(val1, 1);
493                assertEquals(val2, (isStableEnabled ? 1 : 2));
494                assertEquals(val3, (isStableEnabled ? 1 : 3));
495            }
496        }
497    }
498
499    /* ==================================================== */
500
501    static class NestedStableField1 {
502        static class A {
503            public @Stable int a;
504            public @Stable A next;
505        }
506        public @Stable A v;
507
508        public static final NestedStableField1 c = new NestedStableField1();
509        public static A get() { return c.v.next.next.next.next.next.next.next; }
510        public static int get1() { return get().a; }
511
512        public static void test() throws Exception {
513            {
514                c.v = new A(); c.v.next = new A();   c.v.next.next  = c.v;
515                               c.v.a = 1; c.v.next.a = 1; A val1 = get();
516                               c.v.a = 2; c.v.next.a = 2; A val2 = get();
517
518                assertEquals(val1.a, 2);
519                assertEquals(val2.a, 2);
520            }
521
522            {
523                c.v = new A(); c.v.next = c.v;
524                               c.v.a = 1; int val1 = get1();
525                               c.v.a = 2; int val2 = get1();
526                c.v = new A(); c.v.next = c.v;
527                               c.v.a = 3; int val3 = get1();
528
529                assertEquals(val1, 1);
530                assertEquals(val2, (isStableEnabled ? 1 : 2));
531                assertEquals(val3, (isStableEnabled ? 1 : 3));
532            }
533        }
534    }
535   /* ==================================================== */
536
537    static class NestedStableField2 {
538        static class A {
539            public @Stable int a;
540            public @Stable A left;
541            public         A right;
542        }
543
544        public @Stable A v;
545
546        public static final NestedStableField2 c = new NestedStableField2();
547        public static int get() { return c.v.left.left.left.a; }
548        public static int get1() { return c.v.left.left.right.left.a; }
549
550        public static void test() throws Exception {
551            {
552                c.v = new A(); c.v.left = c.v.right = c.v;
553                               c.v.a = 1; int val1 = get(); int val2 = get1();
554                               c.v.a = 2; int val3 = get(); int val4 = get1();
555
556                assertEquals(val1, 1);
557                assertEquals(val3, (isStableEnabled ? 1 : 2));
558
559                assertEquals(val2, 1);
560                assertEquals(val4, 2);
561            }
562        }
563    }
564
565    /* ==================================================== */
566
567    static class NestedStableField3 {
568        static class A {
569            public @Stable int a;
570            public @Stable A[] left;
571            public         A[] right;
572        }
573
574        public @Stable A[] v;
575
576        public static final NestedStableField3 c = new NestedStableField3();
577        public static int get() { return c.v[0].left[1].left[0].left[1].a; }
578        public static int get1() { return c.v[1].left[0].left[1].right[0].left[1].a; }
579
580        public static void test() throws Exception {
581            {
582                A elem = new A();
583                c.v = new A[] { elem, elem }; c.v[0].left = c.v[0].right = c.v;
584                               elem.a = 1; int val1 = get(); int val2 = get1();
585                               elem.a = 2; int val3 = get(); int val4 = get1();
586
587                assertEquals(val1, 1);
588                assertEquals(val3, (isStableEnabled ? 1 : 2));
589
590                assertEquals(val2, 1);
591                assertEquals(val4, 2);
592            }
593        }
594    }
595
596    /* ==================================================== */
597    // Auxiliary methods
598    static void assertEquals(int i, int j) { if (i != j)  throw new AssertionError(i + " != " + j); }
599    static void assertTrue(boolean b) { if (!b)  throw new AssertionError(); }
600
601    static boolean failed = false;
602
603    public static void run(Class<?> test) {
604        Throwable ex = null;
605        System.out.print(test.getName()+": ");
606        try {
607            test.getMethod("test").invoke(null);
608        } catch (InvocationTargetException e) {
609            ex = e.getCause();
610        } catch (Throwable e) {
611            ex = e;
612        } finally {
613            if (ex == null) {
614                System.out.println("PASSED");
615            } else {
616                failed = true;
617                System.out.println("FAILED");
618                ex.printStackTrace(System.out);
619            }
620        }
621    }
622}
623