1 /*
2 * Copyright (c) 2017, 2018, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 package compiler.valhalla.valuetypes;
25
26 import jdk.test.lib.Asserts;
27
28 /*
29 * @test
30 * @summary Test the basic value type implementation in C2
31 * @library /testlibrary /test/lib /compiler/whitebox /
32 * @requires os.simpleArch == "x64"
33 * @compile -XDemitQtypes -XDenableValueTypes -XDallowWithFieldOperator -XDallowFlattenabilityModifiers TestBasicFunctionality.java
34 * @run driver ClassFileInstaller sun.hotspot.WhiteBox jdk.test.lib.Platform
35 * @run main/othervm/timeout=120 -Xbootclasspath/a:. -ea -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions
36 * -XX:+UnlockExperimentalVMOptions -XX:+WhiteBoxAPI -XX:+EnableValhalla
37 * compiler.valhalla.valuetypes.ValueTypeTest
38 * compiler.valhalla.valuetypes.TestBasicFunctionality
39 */
40 public class TestBasicFunctionality extends ValueTypeTest {
41 // Extra VM parameters for some test scenarios. See ValueTypeTest.getVMParameters()
42 @Override
43 public String[] getExtraVMParameters(int scenario) {
44 switch (scenario) {
45 case 3: return new String[] {"-XX:-ValueArrayFlatten"};
46 }
47 return null;
48 }
49
50 public static void main(String[] args) throws Throwable {
51 TestBasicFunctionality test = new TestBasicFunctionality();
52 test.run(args, MyValue1.class, MyValue2.class, MyValue2Inline.class, MyValue3.class, MyValue3Inline.class);
53 }
54
55 // Helper methods
56
57 protected long hash() {
58 return hash(rI, rL);
59 }
60
61 protected long hash(int x, long y) {
62 return MyValue1.createWithFieldsInline(x, y).hash();
63 }
64
65 // Receive value type through call to interpreter
66 @Test(failOn = ALLOC + STORE + TRAP)
67 public long test1() {
68 MyValue1 v = MyValue1.createWithFieldsDontInline(rI, rL);
69 return v.hash();
70 }
71
72 @DontCompile
73 public void test1_verifier(boolean warmup) {
74 long result = test1();
75 Asserts.assertEQ(result, hash());
76 }
77
78 // Receive value type from interpreter via parameter
79 @Test(failOn = ALLOC + STORE + TRAP)
80 public long test2(MyValue1 v) {
81 return v.hash();
82 }
83
84 @DontCompile
85 public void test2_verifier(boolean warmup) {
86 MyValue1 v = MyValue1.createWithFieldsDontInline(rI, rL);
87 long result = test2(v);
88 Asserts.assertEQ(result, hash());
89 }
90
91 // Return incoming value type without accessing fields
92 @Test(valid = ValueTypePassFieldsAsArgsOn, match = {ALLOC, STORE}, matchCount = {1, 11}, failOn = LOAD + TRAP)
93 @Test(valid = ValueTypePassFieldsAsArgsOff, failOn = ALLOC + LOAD + STORE + TRAP)
94 public MyValue1 test3(MyValue1 v) {
95 return v;
96 }
97
98 @DontCompile
99 public void test3_verifier(boolean warmup) {
100 MyValue1 v1 = MyValue1.createWithFieldsDontInline(rI, rL);
101 MyValue1 v2 = test3(v1);
102 Asserts.assertEQ(v1.x, v2.x);
103 Asserts.assertEQ(v1.y, v2.y);
104 }
105
106 // Create a value type in compiled code and only use fields.
107 // Allocation should go away because value type does not escape.
108 @Test(failOn = ALLOC + LOAD + STORE + TRAP)
109 public long test4() {
110 MyValue1 v = MyValue1.createWithFieldsInline(rI, rL);
111 return v.hash();
112 }
113
114 @DontCompile
115 public void test4_verifier(boolean warmup) {
116 long result = test4();
117 Asserts.assertEQ(result, hash());
118 }
119
120 // Create a value type in compiled code and pass it to
121 // an inlined compiled method via a call.
122 @Test(failOn = ALLOC + LOAD + STORE + TRAP)
123 public long test5() {
124 MyValue1 v = MyValue1.createWithFieldsInline(rI, rL);
125 return test5Inline(v);
126 }
127
128 @ForceInline
129 public long test5Inline(MyValue1 v) {
130 return v.hash();
131 }
132
133 @DontCompile
134 public void test5_verifier(boolean warmup) {
135 long result = test5();
136 Asserts.assertEQ(result, hash());
137 }
138
139 // Create a value type in compiled code and pass it to
140 // the interpreter via a call.
141 @Test(valid = ValueTypePassFieldsAsArgsOn, failOn = LOAD + TRAP + ALLOC)
142 @Test(valid = ValueTypePassFieldsAsArgsOff, match = {ALLOC}, matchCount = {1}, failOn = LOAD + TRAP)
143 public long test6() {
144 MyValue1 v = MyValue1.createWithFieldsInline(rI, rL);
145 // Pass to interpreter
146 return v.hashInterpreted();
147 }
148
149 @DontCompile
150 public void test6_verifier(boolean warmup) {
151 long result = test6();
152 Asserts.assertEQ(result, hash());
153 }
154
155 // Create a value type in compiled code and pass it to
156 // the interpreter by returning.
157 @Test(match = {ALLOC}, matchCount = {1}, failOn = LOAD + TRAP)
158 public MyValue1 test7(int x, long y) {
159 return MyValue1.createWithFieldsInline(x, y);
160 }
161
162 @DontCompile
163 public void test7_verifier(boolean warmup) {
164 MyValue1 v = test7(rI, rL);
165 Asserts.assertEQ(v.hash(), hash());
166 }
167
168 // Merge value types created from two branches
169 // TODO fix this once we can distinguish between nullable and non-nullable value types
170 // @Test(failOn = ALLOC + STORE + TRAP)
171 @Test()
172 public long test8(boolean b) {
173 MyValue1 v;
174 if (b) {
175 v = MyValue1.createWithFieldsInline(rI, rL);
176 } else {
177 v = MyValue1.createWithFieldsDontInline(rI + 1, rL + 1);
178 }
179 return v.hash();
180 }
181
182 @DontCompile
183 public void test8_verifier(boolean warmup) {
184 Asserts.assertEQ(test8(true), hash());
185 Asserts.assertEQ(test8(false), hash(rI + 1, rL + 1));
186 }
187
188 // Merge value types created from two branches
189 @Test(valid = ValueTypePassFieldsAsArgsOn, match = {LOAD}, matchCount = {10}, failOn = TRAP + ALLOC + STORE)
190 @Test(valid = ValueTypePassFieldsAsArgsOff, match = {ALLOC, STORE}, matchCount = {1, 5}, failOn = LOAD + TRAP)
191 public MyValue1 test9(boolean b) {
192 MyValue1 v;
193 if (b) {
194 // Value type is not allocated
195 v = MyValue1.createWithFieldsInline(rI, rL);
196 } else {
197 // Value type is allocated by the callee
198 v = MyValue1.createWithFieldsDontInline(rI + 1, rL + 1);
199 }
200 // Need to allocate value type if 'b' is true
201 long sum = v.hashInterpreted();
202 if (b) {
203 v = MyValue1.createWithFieldsDontInline(rI, sum);
204 } else {
205 v = MyValue1.createWithFieldsDontInline(rI, sum + 1);
206 }
207 // Don't need to allocate value type because both branches allocate
208 return v;
209 }
210
211 @DontCompile
212 public void test9_verifier(boolean warmup) {
213 MyValue1 v = test9(true);
214 Asserts.assertEQ(v.x, rI);
215 Asserts.assertEQ(v.y, hash());
216 v = test9(false);
217 Asserts.assertEQ(v.x, rI);
218 Asserts.assertEQ(v.y, hash(rI + 1, rL + 1) + 1);
219 }
220
221 // Merge value types created in a loop (not inlined)
222 @Test(failOn = ALLOC + STORE + TRAP)
223 public long test10(int x, long y) {
224 MyValue1 v = MyValue1.createWithFieldsDontInline(x, y);
225 for (int i = 0; i < 10; ++i) {
226 v = MyValue1.createWithFieldsDontInline(v.x + 1, v.y + 1);
227 }
228 return v.hash();
229 }
230
231 @DontCompile
232 public void test10_verifier(boolean warmup) {
233 long result = test10(rI, rL);
234 Asserts.assertEQ(result, hash(rI + 10, rL + 10));
235 }
236
237 // Merge value types created in a loop (inlined)
238 @Test(failOn = ALLOC + LOAD + STORE + TRAP)
239 public long test11(int x, long y) {
240 MyValue1 v = MyValue1.createWithFieldsInline(x, y);
241 for (int i = 0; i < 10; ++i) {
242 v = MyValue1.createWithFieldsInline(v.x + 1, v.y + 1);
243 }
244 return v.hash();
245 }
246
247 @DontCompile
248 public void test11_verifier(boolean warmup) {
249 long result = test11(rI, rL);
250 Asserts.assertEQ(result, hash(rI + 10, rL + 10));
251 }
252
253 // Test loop with uncommon trap referencing a value type
254 @Test(match = {SCOBJ}, matchCount = {-1 /* at least 1 */}, failOn = LOAD)
255 public long test12(boolean b) {
256 MyValue1 v = MyValue1.createWithFieldsInline(rI, rL);
257 MyValue1[] va = new MyValue1[Math.abs(rI) % 10];
258 for (int i = 0; i < va.length; ++i) {
259 va[i] = MyValue1.createWithFieldsInline(rI, rL);
260 }
261 long result = rL;
262 for (int i = 0; i < 1000; ++i) {
263 if (b) {
264 result += v.x;
265 } else {
266 // Uncommon trap referencing v. We delegate allocation to the
267 // interpreter by adding a SafePointScalarObjectNode.
268 result = v.hashInterpreted();
269 for (int j = 0; j < va.length; ++j) {
270 result += va[j].hash();
271 }
272 }
273 }
274 return result;
275 }
276
277 @DontCompile
278 public void test12_verifier(boolean warmup) {
279 long result = test12(warmup);
280 Asserts.assertEQ(result, warmup ? rL + (1000 * rI) : ((Math.abs(rI) % 10) + 1) * hash());
281 }
282
283 // Test loop with uncommon trap referencing a value type
284 @Test
285 public long test13(boolean b) {
286 MyValue1 v = MyValue1.createWithFieldsDontInline(rI, rL);
287 MyValue1[] va = new MyValue1[Math.abs(rI) % 10];
288 for (int i = 0; i < va.length; ++i) {
289 va[i] = MyValue1.createWithFieldsDontInline(rI, rL);
290 }
291 long result = rL;
292 for (int i = 0; i < 1000; ++i) {
293 if (b) {
294 result += v.x;
295 } else {
296 // Uncommon trap referencing v. Should not allocate
297 // but just pass the existing oop to the uncommon trap.
298 result = v.hashInterpreted();
299 for (int j = 0; j < va.length; ++j) {
300 result += va[j].hashInterpreted();
301 }
302 }
303 }
304 return result;
305 }
306
307 @DontCompile
308 public void test13_verifier(boolean warmup) {
309 long result = test13(warmup);
310 Asserts.assertEQ(result, warmup ? rL + (1000 * rI) : ((Math.abs(rI) % 10) + 1) * hash());
311 }
312
313 // Create a value type in a non-inlined method and then call a
314 // non-inlined method on that value type.
315 @Test(valid = ValueTypePassFieldsAsArgsOn, failOn = (ALLOC + STORE + TRAP), match = {LOAD}, matchCount = {10})
316 @Test(valid = ValueTypePassFieldsAsArgsOff, failOn = (ALLOC + LOAD + STORE + TRAP))
317 public long test14() {
318 MyValue1 v = MyValue1.createWithFieldsDontInline(rI, rL);
319 return v.hashInterpreted();
320 }
321
322 @DontCompile
323 public void test14_verifier(boolean b) {
324 long result = test14();
325 Asserts.assertEQ(result, hash());
326 }
327
328 // Create a value type in an inlined method and then call a
329 // non-inlined method on that value type.
330 @Test(valid = ValueTypePassFieldsAsArgsOn, failOn = (LOAD + TRAP + ALLOC))
331 @Test(valid = ValueTypePassFieldsAsArgsOff, failOn = (LOAD + TRAP), match = {ALLOC}, matchCount = {1})
332 public long test15() {
333 MyValue1 v = MyValue1.createWithFieldsInline(rI, rL);
334 return v.hashInterpreted();
335 }
336
337 @DontCompile
338 public void test15_verifier(boolean b) {
339 long result = test15();
340 Asserts.assertEQ(result, hash());
341 }
342
343 // Create a value type in a non-inlined method and then call an
344 // inlined method on that value type.
345 @Test(failOn = (ALLOC + STORE + TRAP))
346 public long test16() {
347 MyValue1 v = MyValue1.createWithFieldsDontInline(rI, rL);
348 return v.hash();
349 }
350
351 @DontCompile
352 public void test16_verifier(boolean b) {
353 long result = test16();
354 Asserts.assertEQ(result, hash());
355 }
356
357 // Create a value type in an inlined method and then call an
358 // inlined method on that value type.
359 @Test(failOn = (ALLOC + LOAD + STORE + TRAP))
360 public long test17() {
361 MyValue1 v = MyValue1.createWithFieldsInline(rI, rL);
362 return v.hash();
363 }
364
365 @DontCompile
366 public void test17_verifier(boolean b) {
367 long result = test17();
368 Asserts.assertEQ(result, hash());
369 }
370
371 // Create a value type in compiled code and pass it to the
372 // interpreter via a call. The value is live at the first call so
373 // debug info should include a reference to all its fields.
374 @Test(valid = ValueTypePassFieldsAsArgsOn, failOn = ALLOC + LOAD + TRAP)
375 @Test(valid = ValueTypePassFieldsAsArgsOff, match = {ALLOC}, matchCount = {1}, failOn = LOAD + TRAP)
376 public long test18() {
377 MyValue1 v = MyValue1.createWithFieldsInline(rI, rL);
378 v.hashInterpreted();
379 return v.hashInterpreted();
380 }
381
382 @DontCompile
383 public void test18_verifier(boolean warmup) {
384 long result = test18();
385 Asserts.assertEQ(result, hash());
386 }
387
388 // Create a value type in compiled code and pass it to the
389 // interpreter via a call. The value type is passed twice but
390 // should only be allocated once.
391 @Test(valid = ValueTypePassFieldsAsArgsOn, failOn = ALLOC + LOAD + TRAP)
392 @Test(valid = ValueTypePassFieldsAsArgsOff, match = {ALLOC}, matchCount = {1}, failOn = LOAD + TRAP)
393 public long test19() {
394 MyValue1 v = MyValue1.createWithFieldsInline(rI, rL);
395 return sumValue(v, v);
396 }
397
398 @DontCompile
399 public long sumValue(MyValue1 v, MyValue1 dummy) {
400 return v.hash();
401 }
402
403 @DontCompile
404 public void test19_verifier(boolean warmup) {
405 long result = test19();
406 Asserts.assertEQ(result, hash());
407 }
408
409 // Create a value type (array) in compiled code and pass it to the
410 // interpreter via a call. The value type is live at the uncommon
411 // trap: verify that deoptimization causes the value type to be
412 // correctly allocated.
413 @Test(valid = ValueTypePassFieldsAsArgsOn, failOn = LOAD + ALLOC + STORE)
414 @Test(valid = ValueTypePassFieldsAsArgsOff, match = {ALLOC}, matchCount = {1}, failOn = LOAD)
415 public long test20(boolean deopt) {
416 MyValue1 v = MyValue1.createWithFieldsInline(rI, rL);
417 MyValue2[] va = new MyValue2[3];
418 if (deopt) {
419 // uncommon trap
420 WHITE_BOX.deoptimizeMethod(tests.get(getClass().getSimpleName() + "::test20"));
421 }
422 return v.hashInterpreted() + va[0].hashInterpreted() +
423 va[1].hashInterpreted() + va[2].hashInterpreted();
424 }
425
426 @DontCompile
427 public void test20_verifier(boolean warmup) {
428 MyValue2[] va = new MyValue2[42];
429 long result = test20(!warmup);
430 Asserts.assertEQ(result, hash() + va[0].hash() + va[1].hash() + va[2].hash());
431 }
432
433 // Value type fields in regular object
434 MyValue1.val val1;
435 MyValue2.val val2;
436 final MyValue1.val val3 = MyValue1.createWithFieldsInline(rI, rL);
437 static MyValue1.val val4;
438 static final MyValue1.val val5 = MyValue1.createWithFieldsInline(rI, rL);
439
440 // Test value type fields in objects
441 @Test(match = {ALLOC}, matchCount = {1}, failOn = (TRAP))
442 public long test21(int x, long y) {
443 // Compute hash of value type fields
444 long result = val1.hash() + val2.hash() + val3.hash() + val4.hash() + val5.hash();
445 // Update fields
446 val1 = MyValue1.createWithFieldsInline(x, y);
447 val2 = MyValue2.createWithFieldsInline(x, true);
448 val4 = MyValue1.createWithFieldsInline(x, y);
449 return result;
450 }
451
452 @DontCompile
453 public void test21_verifier(boolean warmup) {
454 // Check if hash computed by test18 is correct
455 val1 = MyValue1.createWithFieldsInline(rI, rL);
456 val2 = val1.v2;
457 // val3 is initialized in the constructor
458 val4 = val1;
459 // val5 is initialized in the static initializer
460 long hash = val1.hash() + val2.hash() + val3.hash() + val4.hash() + val5.hash();
461 long result = test21(rI + 1, rL + 1);
462 Asserts.assertEQ(result, hash);
463 // Check if value type fields were updated
464 Asserts.assertEQ(val1.hash(), hash(rI + 1, rL + 1));
465 Asserts.assertEQ(val2.hash(), MyValue2.createWithFieldsInline(rI + 1, true).hash());
466 Asserts.assertEQ(val4.hash(), hash(rI + 1, rL + 1));
467 }
468
469 // Test folding of constant value type fields
470 @Test(failOn = ALLOC + LOAD + STORE + LOOP + TRAP)
471 public long test22() {
472 // This should be constant folded
473 return val5.hash() + val5.v3.hash();
474 }
475
476 @DontCompile
477 public void test22_verifier(boolean warmup) {
478 long result = test22();
479 Asserts.assertEQ(result, val5.hash() + val5.v3.hash());
480 }
481
482 // Test defaultvalue
483 @Test(failOn = ALLOC + LOAD + STORE + LOOP + TRAP)
484 public long test23() {
485 MyValue2 v = MyValue2.createDefaultInline();
486 return v.hash();
487 }
488
489 @DontCompile
490 public void test23_verifier(boolean warmup) {
491 long result = test23();
492 Asserts.assertEQ(result, MyValue2.createDefaultInline().hash());
493 }
494
495 // Test defaultvalue
496 @Test(failOn = ALLOC + STORE + LOOP + TRAP)
497 public long test24() {
498 MyValue1 v1 = MyValue1.createDefaultInline();
499 MyValue1 v2 = MyValue1.createDefaultDontInline();
500 return v1.hashPrimitive() + v2.hashPrimitive();
501 }
502
503 @DontCompile
504 public void test24_verifier(boolean warmup) {
505 long result = test24();
506 Asserts.assertEQ(result, 2 * MyValue1.createDefaultInline().hashPrimitive());
507 }
508
509 // Test withfield
510 @Test(failOn = ALLOC + LOAD + STORE + LOOP + TRAP)
511 public long test25() {
512 MyValue2 v = MyValue2.createWithFieldsInline(rI, true);
513 return v.hash();
514 }
515
516 @DontCompile
517 public void test25_verifier(boolean warmup) {
518 long result = test25();
519 Asserts.assertEQ(result, MyValue2.createWithFieldsInline(rI, true).hash());
520 }
521
522 // Test withfield
523 @Test(failOn = ALLOC + STORE + LOOP + TRAP)
524 public long test26() {
525 MyValue1 v1 = MyValue1.createWithFieldsInline(rI, rL);
526 MyValue1 v2 = MyValue1.createWithFieldsDontInline(rI, rL);
527 return v1.hash() + v2.hash();
528 }
529
530 @DontCompile
531 public void test26_verifier(boolean warmup) {
532 long result = test26();
533 Asserts.assertEQ(result, 2 * hash());
534 }
535
536 class TestClass27 {
537 public MyValue1.val v;
538 }
539
540 // Test allocation elimination of unused object with initialized value type field
541 @Test(failOn = ALLOC + LOAD + STORE + LOOP)
542 public void test27(boolean deopt) {
543 TestClass27 unused = new TestClass27();
544 MyValue1 v = MyValue1.createWithFieldsInline(rI, rL);
545 unused.v = v;
546 if (deopt) {
547 // uncommon trap
548 WHITE_BOX.deoptimizeMethod(tests.get(getClass().getSimpleName() + "::test27"));
549 }
550 }
551
552 @DontCompile
553 public void test27_verifier(boolean warmup) {
554 test27(!warmup);
555 }
556
557 static MyValue3.val staticVal3;
558 static MyValue3.val staticVal3_copy;
559
560 // Check elimination of redundant value type allocations
561 @Test(match = {ALLOC}, matchCount = {1})
562 public MyValue3 test28(MyValue3[] va) {
563 // Create value type and force allocation
564 MyValue3 vt = MyValue3.create();
565 va[0] = vt;
566 staticVal3 = vt;
567 vt.verify(staticVal3);
568
569 // Value type is now allocated, make a copy and force allocation.
570 // Because copy is equal to vt, C2 should remove this redundant allocation.
571 MyValue3 copy = MyValue3.setC(vt, vt.c);
572 va[0] = copy;
573 staticVal3_copy = copy;
574 copy.verify(staticVal3_copy);
575 return copy;
576 }
577
578 @DontCompile
579 public void test28_verifier(boolean warmup) {
580 MyValue3[] va = new MyValue3[1];
581 MyValue3 vt = test28(va);
582 staticVal3.verify(vt);
583 staticVal3.verify(va[0]);
584 staticVal3_copy.verify(vt);
585 staticVal3_copy.verify(va[0]);
586 }
587
588 // Verify that only dominating allocations are re-used
589 @Test()
590 public MyValue3 test29(boolean warmup) {
591 MyValue3 vt = MyValue3.create();
592 if (warmup) {
593 staticVal3 = vt; // Force allocation
594 }
595 // Force allocation to verify that above
596 // non-dominating allocation is not re-used
597 MyValue3 copy = MyValue3.setC(vt, vt.c);
598 staticVal3_copy = copy;
599 copy.verify(vt);
600 return copy;
601 }
602
603 @DontCompile
604 public void test29_verifier(boolean warmup) {
605 MyValue3 vt = test29(warmup);
606 if (warmup) {
607 staticVal3.verify(vt);
608 }
609 }
610
611 // Verify that C2 recognizes value type loads and re-uses the oop to avoid allocations
612 @Test(failOn = ALLOC + ALLOCA + STORE)
613 public MyValue3 test30(MyValue3[] va) {
614 // C2 can re-use the oop of staticVal3 because staticVal3 is equal to copy
615 MyValue3 copy = MyValue3.copy(staticVal3);
616 va[0] = copy;
617 staticVal3 = copy;
618 copy.verify(staticVal3);
619 return copy;
620 }
621
622 @DontCompile
623 public void test30_verifier(boolean warmup) {
624 staticVal3 = MyValue3.create();
625 MyValue3[] va = new MyValue3[1];
626 MyValue3 vt = test30(va);
627 staticVal3.verify(vt);
628 staticVal3.verify(va[0]);
629 }
630
631 // Verify that C2 recognizes value type loads and re-uses the oop to avoid allocations
632 @Test(valid = ValueTypeReturnedAsFieldsOff, failOn = ALLOC + ALLOCA + STORE)
633 @Test(valid = ValueTypeReturnedAsFieldsOn)
634 public MyValue3 test31(MyValue3[] va) {
635 // C2 can re-use the oop returned by createDontInline()
636 // because the corresponding value type is equal to 'copy'.
637 MyValue3 copy = MyValue3.copy(MyValue3.createDontInline());
638 va[0] = copy;
639 staticVal3 = copy;
640 copy.verify(staticVal3);
641 return copy;
642 }
643
644 @DontCompile
645 public void test31_verifier(boolean warmup) {
646 MyValue3[] va = new MyValue3[1];
647 MyValue3 vt = test31(va);
648 staticVal3.verify(vt);
649 staticVal3.verify(va[0]);
650 }
651
652 // Verify that C2 recognizes value type loads and re-uses the oop to avoid allocations
653 @Test(valid = ValueTypePassFieldsAsArgsOff, failOn = ALLOC + ALLOCA + STORE)
654 @Test(valid = ValueTypePassFieldsAsArgsOn)
655 public MyValue3 test32(MyValue3 vt, MyValue3[] va) {
656 // C2 can re-use the oop of vt because vt is equal to 'copy'.
657 MyValue3 copy = MyValue3.copy(vt);
658 va[0] = copy;
659 staticVal3 = copy;
660 copy.verify(staticVal3);
661 return copy;
662 }
663
664 @DontCompile
665 public void test32_verifier(boolean warmup) {
666 MyValue3 vt = MyValue3.create();
667 MyValue3[] va = new MyValue3[1];
668 MyValue3 result = test32(vt, va);
669 staticVal3.verify(vt);
670 va[0].verify(vt);
671 result.verify(vt);
672 }
673
674 // Test correct identification of value type copies
675 @Test()
676 public MyValue3 test33(MyValue3[] va) {
677 MyValue3 vt = MyValue3.copy(staticVal3);
678 vt = MyValue3.setI(vt, vt.c);
679 // vt is not equal to staticVal3, so C2 should not re-use the oop
680 va[0] = vt;
681 staticVal3 = vt;
682 vt.verify(staticVal3);
683 return vt;
684 }
685
686 @DontCompile
687 public void test33_verifier(boolean warmup) {
688 staticVal3 = MyValue3.create();
689 MyValue3[] va = new MyValue3[1];
690 MyValue3 vt = test33(va);
691 Asserts.assertEQ(staticVal3.i, (int)staticVal3.c);
692 Asserts.assertEQ(va[0].i, (int)staticVal3.c);
693 Asserts.assertEQ(vt.i, (int)staticVal3.c);
694 }
695
696 // Verify that the default value type is never allocated.
697 // C2 code should load and use the default oop from the java mirror.
698 @Test(failOn = ALLOC + ALLOCA + LOAD + STORE + LOOP + TRAP)
699 public MyValue3 test34(MyValue3[] va) {
700 // Explicitly create default value
701 MyValue3 vt = MyValue3.createDefault();
702 va[0] = vt;
703 staticVal3 = vt;
704 vt.verify(vt);
705
706 // Load default value from uninitialized value array
707 MyValue3[] dva = new MyValue3[1];
708 staticVal3_copy = dva[0];
709 va[1] = dva[0];
710 dva[0].verify(dva[0]);
711 return vt;
712 }
713
714 @DontCompile
715 public void test34_verifier(boolean warmup) {
716 MyValue3 vt = MyValue3.createDefault();
717 MyValue3[] va = new MyValue3[2];
718 va[0] = MyValue3.create();
719 va[1] = MyValue3.create();
720 MyValue3 res = test34(va);
721 res.verify(vt);
722 staticVal3.verify(vt);
723 staticVal3_copy.verify(vt);
724 va[0].verify(vt);
725 va[1].verify(vt);
726 }
727
728 // Same as above but manually initialize value type fields to default.
729 @Test(failOn = ALLOC + ALLOCA + LOAD + STORE + LOOP + TRAP)
730 public MyValue3 test35(MyValue3 vt, MyValue3[] va) {
731 vt = MyValue3.setC(vt, (char)0);
732 vt = MyValue3.setBB(vt, (byte)0);
733 vt = MyValue3.setS(vt, (short)0);
734 vt = MyValue3.setI(vt, 0);
735 vt = MyValue3.setL(vt, 0);
736 vt = MyValue3.setO(vt, null);
737 vt = MyValue3.setF1(vt, 0);
738 vt = MyValue3.setF2(vt, 0);
739 vt = MyValue3.setF3(vt, 0);
740 vt = MyValue3.setF4(vt, 0);
741 vt = MyValue3.setF5(vt, 0);
742 vt = MyValue3.setF6(vt, 0);
743 vt = MyValue3.setV1(vt, MyValue3Inline.createDefault());
744 va[0] = vt;
745 staticVal3 = vt;
746 vt.verify(vt);
747 return vt;
748 }
749
750 @DontCompile
751 public void test35_verifier(boolean warmup) {
752 MyValue3 vt = MyValue3.createDefault();
753 MyValue3[] va = new MyValue3[1];
754 va[0] = MyValue3.create();
755 MyValue3 res = test35(va[0], va);
756 res.verify(vt);
757 staticVal3.verify(vt);
758 va[0].verify(vt);
759 }
760 }