1 /*
  2  * Copyright (c) 2023, Red Hat, Inc. All rights reserved.
  3  * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
  4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  5  *
  6  * This code is free software; you can redistribute it and/or modify it
  7  * under the terms of the GNU General Public License version 2 only, as
  8  * published by the Free Software Foundation.
  9  *
 10  * This code is distributed in the hope that it will be useful, but WITHOUT
 11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 13  * version 2 for more details (a copy is included in the LICENSE file that
 14  * accompanied this code).
 15  *
 16  * You should have received a copy of the GNU General Public License version
 17  * 2 along with this work; if not, write to the Free Software Foundation,
 18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 19  *
 20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 21  * or visit www.oracle.com if you need additional information or have any
 22  * questions.
 23  */
 24 
 25 package compiler.c2.irTests;
 26 
 27 import compiler.lib.ir_framework.*;
 28 import jdk.test.lib.Utils;
 29 import jdk.test.whitebox.WhiteBox;
 30 import jdk.internal.misc.Unsafe;
 31 import java.util.Random;
 32 import java.util.Arrays;
 33 import java.nio.ByteOrder;
 34 
 35 /*
 36  * @test
 37  * @bug 8300258
 38  * @key randomness
 39  * @summary C2: vectorization fails on simple ByteBuffer loop
 40  * @modules java.base/jdk.internal.misc
 41  * @library /test/lib /
 42  * @build jdk.test.whitebox.WhiteBox
 43  * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
 44  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI compiler.c2.irTests.TestVectorizationMismatchedAccess
 45  */
 46 
 47 public class TestVectorizationMismatchedAccess {
 48     private static final Unsafe UNSAFE = Unsafe.getUnsafe();
 49     private static final Random RANDOM = Utils.getRandomInstance();
 50     private final static WhiteBox wb = WhiteBox.getWhiteBox();
 51 
 52     public static void main(String[] args) {
 53         // Cross-product: +-AlignVector and +-UseCompactObjectHeaders
 54         TestFramework.runWithFlags("--add-modules", "java.base", "--add-exports", "java.base/jdk.internal.misc=ALL-UNNAMED",
 55                                    "-XX:+UnlockExperimentalVMOptions", "-XX:-UseCompactObjectHeaders",
 56                                    "-XX:-AlignVector");
 57         TestFramework.runWithFlags("--add-modules", "java.base", "--add-exports", "java.base/jdk.internal.misc=ALL-UNNAMED",
 58                                    "-XX:+UnlockExperimentalVMOptions", "-XX:-UseCompactObjectHeaders",
 59                                    "-XX:+AlignVector");
 60         TestFramework.runWithFlags("--add-modules", "java.base", "--add-exports", "java.base/jdk.internal.misc=ALL-UNNAMED",
 61                                    "-XX:+UnlockExperimentalVMOptions", "-XX:+UseCompactObjectHeaders",
 62                                    "-XX:-AlignVector");
 63         TestFramework.runWithFlags("--add-modules", "java.base", "--add-exports", "java.base/jdk.internal.misc=ALL-UNNAMED",
 64                                    "-XX:+UnlockExperimentalVMOptions", "-XX:+UseCompactObjectHeaders",
 65                                    "-XX:+AlignVector");
 66     }
 67 
 68     static int size = 1024;
 69     static byte[] byteArray = new byte[size * 8];
 70     static long[] longArray = new long[size];
 71     static byte[] verifyByteArray = new byte[size * 8];
 72     static long[] verifyLongArray = new long[size];
 73     static long baseOffset = 0;
 74     static long baseOffHeap = UNSAFE.allocateMemory(size * 8);
 75 
 76 
 77     static {
 78         for (int i = 0; i < verifyByteArray.length; i++) {
 79             verifyByteArray[i] = (byte)RANDOM.nextInt(Byte.MAX_VALUE);
 80         }
 81         for (int i = 0; i < verifyLongArray.length; i++) {
 82             verifyLongArray[i] = 0;
 83             for (int j = 0; j < 8; j++) {
 84                 verifyLongArray[i] = verifyLongArray[i] | (((long)verifyByteArray[8 * i + j]) << 8 * j);
 85             }
 86         }
 87     }
 88 
 89     // Method to adjust the value for the native byte order
 90     static private long handleByteOrder(long value) {
 91         if (ByteOrder.nativeOrder() != ByteOrder.LITTLE_ENDIAN) {
 92             value = Long.reverseBytes(value);
 93         }
 94         return value;
 95     }
 96 
 97     static private void runAndVerify(Runnable test, int offset) {
 98         System.arraycopy(verifyLongArray, 0, longArray, 0, longArray.length);
 99         Arrays.fill(byteArray, (byte)0);
100         test.run();
101         int i;
102         for (i = 0; i < Math.max(offset, 0); i++) {
103             if (byteArray[i] != 0) {
104                 throw new RuntimeException("Incorrect result at " + i + " " + byteArray[i] + " != 0");
105             }
106         }
107         for (; i < Math.min(byteArray.length + offset, byteArray.length); i++) {
108             if (byteArray[i] != verifyByteArray[i - offset]) {
109                 throw new RuntimeException("Incorrect result at " + i + " " + byteArray[i] + " != " + verifyByteArray[i-offset]);
110             }
111         }
112         for (; i < byteArray.length; i++) {
113             if (byteArray[i] != 0) {
114                 throw new RuntimeException("Incorrect result at " + i + " " + byteArray[i] + " != 0");
115             }
116         }
117     }
118 
119     static private void runAndVerify2(Runnable test, int offset) {
120         System.arraycopy(verifyByteArray, 0, byteArray, 0, byteArray.length);
121         test.run();
122         int i;
123         for (i = 0; i < Math.max(offset, 0); i++) {
124             if (byteArray[i] != verifyByteArray[i]) {
125                 throw new RuntimeException("Incorrect result at " + i + " " + byteArray[i] + " != " + verifyByteArray[i]);
126             }
127         }
128         for (; i < Math.min(byteArray.length + offset, byteArray.length); i++) {
129             int val = offset > 0 ? verifyByteArray[(i-offset) % 8] : verifyByteArray[i-offset];
130             if (byteArray[i] != val) {
131                 throw new RuntimeException("Incorrect result at " + i + " " + byteArray[i] + " != " + verifyByteArray[i-offset]);
132             }
133         }
134         for (; i < byteArray.length; i++) {
135             if (byteArray[i] != verifyByteArray[i]) {
136                 throw new RuntimeException("Incorrect result at " + i + " " + byteArray[i] + " != " + verifyByteArray[i]);
137             }
138         }
139     }
140 
141 
142     static private void runAndVerify3(Runnable test, int offset) {
143         System.arraycopy(verifyLongArray, 0, longArray, 0, longArray.length);
144         for (int i = 0; i < size * 8; i++) {
145             UNSAFE.putByte(null, baseOffHeap + i, (byte)0);
146         }
147         test.run();
148         int i;
149         for (i = 0; i < Math.max(offset, 0); i++) {
150             if (UNSAFE.getByte(null, baseOffHeap + i) != 0) {
151                 throw new RuntimeException("Incorrect result at " + i + " " + byteArray[i] + " != 0");
152             }
153         }
154         for (; i < Math.min(size * 8 + offset, size * 8); i++) {
155             if (UNSAFE.getByte(null, baseOffHeap + i) != verifyByteArray[i - offset]) {
156                 throw new RuntimeException("Incorrect result at " + i + " " + byteArray[i] + " != " + verifyByteArray[i-offset]);
157             }
158         }
159         for (; i < byteArray.length; i++) {
160             if (UNSAFE.getByte(null, baseOffHeap + i) != 0) {
161                 throw new RuntimeException("Incorrect result at " + i + " " + byteArray[i] + " != 0");
162             }
163         }
164     }
165 
166     @Test
167     @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
168         applyIfCPUFeatureOr = {"sse2", "true", "asimd", "true"},
169         applyIfPlatform = {"64-bit", "true"})
170     // 32-bit: offsets are badly aligned (UNSAFE.ARRAY_BYTE_BASE_OFFSET is 4 byte aligned, but not 8 byte aligned).
171     //         might get fixed with JDK-8325155.
172     public static void testByteLong1a(byte[] dest, long[] src) {
173         for (int i = 0; i < src.length; i++) {
174             UNSAFE.putLongUnaligned(dest, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8 * i, handleByteOrder(src[i]));
175         }
176     }
177 
178     @Test
179     @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
180         applyIfCPUFeatureOr = {"sse2", "true", "asimd", "true"},
181         applyIfPlatform = {"64-bit", "true"})
182     // 32-bit: address has ConvL2I for cast of long to address, not supported.
183     public static void testByteLong1b(byte[] dest, long[] src) {
184         for (int i = 0; i < src.length; i++) {
185             UNSAFE.putLongUnaligned(dest, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8L * i, handleByteOrder(src[i]));
186         }
187     }
188 
189     @Test
190     @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
191         applyIfCPUFeatureOr = {"sse2", "true", "asimd", "true"})
192     public static void testByteLong1c(byte[] dest, long[] src) {
193         long base = 64; // make sure it is big enough and 8 byte aligned (required for 32-bit)
194         for (int i = 0; i < src.length - 8; i++) {
195             UNSAFE.putLongUnaligned(dest, base + 8 * i, handleByteOrder(src[i]));
196         }
197     }
198 
199     @Test
200     @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
201         applyIfCPUFeatureOr = {"sse2", "true", "asimd", "true"},
202         applyIfPlatform = {"64-bit", "true"})
203     // 32-bit: address has ConvL2I for cast of long to address, not supported.
204     public static void testByteLong1d(byte[] dest, long[] src) {
205         long base = 64; // make sure it is big enough and 8 byte aligned (required for 32-bit)
206         for (int i = 0; i < src.length - 8; i++) {
207             UNSAFE.putLongUnaligned(dest, base + 8L * i, handleByteOrder(src[i]));
208         }
209     }
210 
211     @Run(test = {"testByteLong1a", "testByteLong1b", "testByteLong1c", "testByteLong1d"})
212     public static void testByteLong1_runner() {
213         runAndVerify(() -> testByteLong1a(byteArray, longArray), 0);
214         runAndVerify(() -> testByteLong1b(byteArray, longArray), 0);
215         testByteLong1c(byteArray, longArray);
216         testByteLong1d(byteArray, longArray);
217     }
218 
219     @Test
220     @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
221         applyIfCPUFeatureOr = {"sse2", "true", "asimd", "true"},
222         applyIfPlatform = {"64-bit", "true"})
223     // 32-bit: offsets are badly aligned (UNSAFE.ARRAY_BYTE_BASE_OFFSET is 4 byte aligned, but not 8 byte aligned).
224     //         might get fixed with JDK-8325155.
225     public static void testByteLong2a(byte[] dest, long[] src) {
226         for (int i = 1; i < src.length; i++) {
227             UNSAFE.putLongUnaligned(dest, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8 * (i - 1), handleByteOrder(src[i]));
228         }
229     }
230 
231     @Test
232     @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
233         applyIfCPUFeatureOr = {"sse2", "true", "asimd", "true"},
234         applyIfPlatform = {"64-bit", "true"})
235     // 32-bit: address has ConvL2I for cast of long to address, not supported.
236     public static void testByteLong2b(byte[] dest, long[] src) {
237         for (int i = 1; i < src.length; i++) {
238             UNSAFE.putLongUnaligned(dest, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8L * (i - 1), handleByteOrder(src[i]));
239         }
240     }
241 
242     @Run(test = {"testByteLong2a", "testByteLong2b"})
243     public static void testByteLong2_runner() {
244         runAndVerify(() -> testByteLong2a(byteArray, longArray), -8);
245         runAndVerify(() -> testByteLong2b(byteArray, longArray), -8);
246     }
247 
248     @Test
249     @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
250         applyIfCPUFeatureOr = {"sse2", "true", "asimd", "true"},
251         applyIfPlatform = {"64-bit", "true"})
252     // 32-bit: offsets are badly aligned (UNSAFE.ARRAY_BYTE_BASE_OFFSET is 4 byte aligned, but not 8 byte aligned).
253     //         might get fixed with JDK-8325155.
254     public static void testByteLong3a(byte[] dest, long[] src) {
255         for (int i = 0; i < src.length - 1; i++) {
256             UNSAFE.putLongUnaligned(dest, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8 * (i + 1), handleByteOrder(src[i]));
257         }
258     }
259 
260     @Test
261     @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
262         applyIfCPUFeatureOr = {"sse2", "true", "asimd", "true"},
263         applyIfPlatform = {"64-bit", "true"})
264     // 32-bit: address has ConvL2I for cast of long to address, not supported.
265     public static void testByteLong3b(byte[] dest, long[] src) {
266         for (int i = 0; i < src.length - 1; i++) {
267             UNSAFE.putLongUnaligned(dest, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8L * (i + 1), handleByteOrder(src[i]));
268         }
269     }
270 
271     @Run(test = {"testByteLong3a", "testByteLong3b"})
272     public static void testByteLong3_runner() {
273         runAndVerify(() -> testByteLong3a(byteArray, longArray), 8);
274         runAndVerify(() -> testByteLong3b(byteArray, longArray), 8);
275     }
276 
277     @Test
278     @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
279         applyIfCPUFeatureOr = {"sse2", "true", "asimd", "true"},
280         applyIfPlatform = {"64-bit", "true"},
281         applyIf = {"AlignVector", "false"})
282     // 32-bit: offsets are badly aligned (UNSAFE.ARRAY_BYTE_BASE_OFFSET is 4 byte aligned, but not 8 byte aligned).
283     //         might get fixed with JDK-8325155.
284     // AlignVector cannot guarantee that invar is aligned.
285     public static void testByteLong4a(byte[] dest, long[] src, int start, int stop) {
286         for (int i = start; i < stop; i++) {
287             UNSAFE.putLongUnaligned(dest, 8 * i + baseOffset, handleByteOrder(src[i]));
288         }
289     }
290 
291     @Test
292     @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
293         applyIfCPUFeatureOr = {"sse2", "true", "asimd", "true"},
294         applyIfPlatform = {"64-bit", "true"},
295         applyIf = {"AlignVector", "false"})
296     // 32-bit: address has ConvL2I for cast of long to address, not supported.
297     // AlignVector cannot guarantee that invar is aligned.
298     public static void testByteLong4b(byte[] dest, long[] src, int start, int stop) {
299         for (int i = start; i < stop; i++) {
300             UNSAFE.putLongUnaligned(dest, 8L * i + baseOffset, handleByteOrder(src[i]));
301         }
302     }
303 
304     @Run(test = {"testByteLong4a", "testByteLong4b"})
305     public static void testByteLong4_runner() {
306         baseOffset = UNSAFE.ARRAY_BYTE_BASE_OFFSET;
307         runAndVerify(() -> testByteLong4a(byteArray, longArray, 0, size), 0);
308         runAndVerify(() -> testByteLong4b(byteArray, longArray, 0, size), 0);
309     }
310 
311     @Test
312     @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
313         applyIfCPUFeatureOr = {"sse2", "true", "asimd", "true"},
314         applyIfPlatform = {"64-bit", "true"})
315     // 32-bit: offsets are badly aligned (UNSAFE.ARRAY_BYTE_BASE_OFFSET is 4 byte aligned, but not 8 byte aligned).
316     //         might get fixed with JDK-8325155.
317     public static void testByteLong5a(byte[] dest, long[] src, int start, int stop) {
318         for (int i = start; i < stop; i++) {
319             UNSAFE.putLongUnaligned(dest, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8 * (i + baseOffset), handleByteOrder(src[i]));
320         }
321     }
322 
323     @Test
324     @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
325         applyIfCPUFeatureOr = {"sse2", "true", "asimd", "true"},
326         applyIfPlatform = {"64-bit", "true"})
327     // 32-bit: address has ConvL2I for cast of long to address, not supported.
328     public static void testByteLong5b(byte[] dest, long[] src, int start, int stop) {
329         for (int i = start; i < stop; i++) {
330             UNSAFE.putLongUnaligned(dest, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8L * (i + baseOffset), handleByteOrder(src[i]));
331         }
332     }
333 
334     @Run(test = {"testByteLong5a", "testByteLong5b"})
335     public static void testByteLong5_runner() {
336         baseOffset = 1;
337         runAndVerify(() -> testByteLong5a(byteArray, longArray, 0, size-1), 8);
338         runAndVerify(() -> testByteLong5b(byteArray, longArray, 0, size-1), 8);
339     }
340 
341     @Test
342     @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
343         applyIfCPUFeatureOr = {"sse2", "true", "asimd", "true"},
344         applyIfPlatform = {"64-bit", "true"})
345     // 32-bit: offsets are badly aligned (UNSAFE.ARRAY_BYTE_BASE_OFFSET is 4 byte aligned, but not 8 byte aligned).
346     //         might get fixed with JDK-8325155.
347     public static void testByteByte1a(byte[] dest, byte[] src) {
348         for (int i = 0; i < src.length / 8; i++) {
349             UNSAFE.putLongUnaligned(dest, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8 * i, UNSAFE.getLongUnaligned(src, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8 * i));
350         }
351     }
352 
353     @Test
354     @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
355         applyIfCPUFeatureOr = {"sse2", "true", "asimd", "true"},
356         applyIfPlatform = {"64-bit", "true"})
357     // 32-bit: address has ConvL2I for cast of long to address, not supported.
358     public static void testByteByte1b(byte[] dest, byte[] src) {
359         for (int i = 0; i < src.length / 8; i++) {
360             UNSAFE.putLongUnaligned(dest, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8L * i, UNSAFE.getLongUnaligned(src, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8L * i));
361         }
362     }
363 
364     @Run(test = {"testByteByte1a", "testByteByte1b"})
365     public static void testByteByte1_runner() {
366         runAndVerify2(() -> testByteByte1a(byteArray, byteArray), 0);
367         runAndVerify2(() -> testByteByte1b(byteArray, byteArray), 0);
368     }
369 
370     @Test
371     @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
372         applyIfCPUFeatureOr = {"sse2", "true", "asimd", "true"},
373         applyIfPlatform = {"64-bit", "true"})
374     // 32-bit: offsets are badly aligned (UNSAFE.ARRAY_BYTE_BASE_OFFSET is 4 byte aligned, but not 8 byte aligned).
375     //         might get fixed with JDK-8325155.
376     public static void testByteByte2a(byte[] dest, byte[] src) {
377         for (int i = 1; i < src.length / 8; i++) {
378             UNSAFE.putLongUnaligned(dest, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8 * (i - 1), UNSAFE.getLongUnaligned(src, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8 * i));
379         }
380     }
381 
382     @Test
383     @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
384         applyIfCPUFeatureOr = {"sse2", "true", "asimd", "true"},
385         applyIfPlatform = {"64-bit", "true"})
386     // 32-bit: address has ConvL2I for cast of long to address, not supported.
387     public static void testByteByte2b(byte[] dest, byte[] src) {
388         for (int i = 1; i < src.length / 8; i++) {
389             UNSAFE.putLongUnaligned(dest, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8L * (i - 1), UNSAFE.getLongUnaligned(src, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8L * i));
390         }
391     }
392 
393     @Run(test = {"testByteByte2a", "testByteByte2b"})
394     public static void testByteByte2_runner() {
395         runAndVerify2(() -> testByteByte2a(byteArray, byteArray), -8);
396         runAndVerify2(() -> testByteByte2b(byteArray, byteArray), -8);
397     }
398 
399     @Test
400     @IR(failOn = { IRNode.LOAD_VECTOR_L, IRNode.STORE_VECTOR })
401     public static void testByteByte3a(byte[] dest, byte[] src) {
402         for (int i = 0; i < src.length / 8 - 1; i++) {
403             UNSAFE.putLongUnaligned(dest, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8 * (i + 1), UNSAFE.getLongUnaligned(src, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8 * i));
404         }
405     }
406 
407     @Test
408     @IR(failOn = { IRNode.LOAD_VECTOR_L, IRNode.STORE_VECTOR })
409     public static void testByteByte3b(byte[] dest, byte[] src) {
410         for (int i = 0; i < src.length / 8 - 1; i++) {
411             UNSAFE.putLongUnaligned(dest, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8L * (i + 1), UNSAFE.getLongUnaligned(src, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8L * i));
412         }
413     }
414 
415     @Run(test = {"testByteByte3a", "testByteByte3b"})
416     public static void testByteByte3_runner() {
417         runAndVerify2(() -> testByteByte3a(byteArray, byteArray), 8);
418         runAndVerify2(() -> testByteByte3b(byteArray, byteArray), 8);
419     }
420 
421     @Test
422     @IR(failOn = { IRNode.LOAD_VECTOR_L, IRNode.STORE_VECTOR })
423     public static void testByteByte4a(byte[] dest, byte[] src, int start, int stop) {
424         for (int i = start; i < stop; i++) {
425             UNSAFE.putLongUnaligned(dest, 8 * i + baseOffset, UNSAFE.getLongUnaligned(src, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8 * i));
426         }
427     }
428 
429     @Test
430     @IR(failOn = { IRNode.LOAD_VECTOR_L, IRNode.STORE_VECTOR })
431     public static void testByteByte4b(byte[] dest, byte[] src, int start, int stop) {
432         for (int i = start; i < stop; i++) {
433             UNSAFE.putLongUnaligned(dest, 8L * i + baseOffset, UNSAFE.getLongUnaligned(src, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8L * i));
434         }
435     }
436 
437     @Run(test = {"testByteByte4a", "testByteByte4b"})
438     public static void testByteByte4_runner() {
439         baseOffset = UNSAFE.ARRAY_BYTE_BASE_OFFSET;
440         runAndVerify2(() -> testByteByte4a(byteArray, byteArray, 0, size), 0);
441         runAndVerify2(() -> testByteByte4b(byteArray, byteArray, 0, size), 0);
442     }
443 
444     @Test
445     @IR(failOn = { IRNode.LOAD_VECTOR_L, IRNode.STORE_VECTOR })
446     public static void testByteByte5a(byte[] dest, byte[] src, int start, int stop) {
447         for (int i = start; i < stop; i++) {
448             UNSAFE.putLongUnaligned(dest, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8 * (i + baseOffset), UNSAFE.getLongUnaligned(src, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8 * i));
449         }
450     }
451 
452     @Test
453     @IR(failOn = { IRNode.LOAD_VECTOR_L, IRNode.STORE_VECTOR })
454     public static void testByteByte5b(byte[] dest, byte[] src, int start, int stop) {
455         for (int i = start; i < stop; i++) {
456             UNSAFE.putLongUnaligned(dest, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8L * (i + baseOffset), UNSAFE.getLongUnaligned(src, UNSAFE.ARRAY_BYTE_BASE_OFFSET + 8L * i));
457         }
458     }
459 
460     @Run(test = {"testByteByte5a", "testByteByte5b"})
461     public static void testByteByte5_runner() {
462         baseOffset = 1;
463         runAndVerify2(() -> testByteByte5a(byteArray, byteArray, 0, size-1), 8);
464         runAndVerify2(() -> testByteByte5b(byteArray, byteArray, 0, size-1), 8);
465     }
466 
467     @Test
468     @IR(counts = { IRNode.LOAD_VECTOR_L, "=0", IRNode.STORE_VECTOR, "=0" }) // temporary
469     // @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" })
470     // FAILS: adr is CastX2P(dest + 8 * (i + int_con))
471     // See: JDK-8331576
472     public static void testOffHeapLong1a(long dest, long[] src) {
473         for (int i = 0; i < src.length; i++) {
474             UNSAFE.putLongUnaligned(null, dest + 8 * i, handleByteOrder(src[i]));
475         }
476     }
477 
478     @Test
479     @IR(counts = { IRNode.LOAD_VECTOR_L, "=0", IRNode.STORE_VECTOR, "=0" }) // temporary
480     // @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" })
481     // FAILS: adr is CastX2P(dest + 8L * (i + int_con))
482     // See: JDK-8331576
483     public static void testOffHeapLong1b(long dest, long[] src) {
484         for (int i = 0; i < src.length; i++) {
485             UNSAFE.putLongUnaligned(null, dest + 8L * i, handleByteOrder(src[i]));
486         }
487     }
488 
489     @Run(test = {"testOffHeapLong1a", "testOffHeapLong1b"})
490     public static void testOffHeapLong1_runner() {
491         runAndVerify3(() -> testOffHeapLong1a(baseOffHeap, longArray), 0);
492         runAndVerify3(() -> testOffHeapLong1b(baseOffHeap, longArray), 0);
493     }
494 
495     @Test
496     @IR(counts = { IRNode.LOAD_VECTOR_L, "=0", IRNode.STORE_VECTOR, "=0" }) // temporary
497     // @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" })
498     // FAILS: adr is CastX2P
499     // See: JDK-8331576
500     public static void testOffHeapLong2a(long dest, long[] src) {
501         for (int i = 1; i < src.length; i++) {
502             UNSAFE.putLongUnaligned(null, dest + 8 * (i - 1), handleByteOrder(src[i]));
503         }
504     }
505 
506     @Test
507     @IR(counts = { IRNode.LOAD_VECTOR_L, "=0", IRNode.STORE_VECTOR, "=0" }) // temporary
508     // @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" })
509     // FAILS: adr is CastX2P
510     // See: JDK-8331576
511     public static void testOffHeapLong2b(long dest, long[] src) {
512         for (int i = 1; i < src.length; i++) {
513             UNSAFE.putLongUnaligned(null, dest + 8L * (i - 1), handleByteOrder(src[i]));
514         }
515     }
516 
517     @Run(test = {"testOffHeapLong2a", "testOffHeapLong2b"})
518     public static void testOffHeapLong2_runner() {
519         runAndVerify3(() -> testOffHeapLong2a(baseOffHeap, longArray), -8);
520         runAndVerify3(() -> testOffHeapLong2b(baseOffHeap, longArray), -8);
521     }
522 
523     @Test
524     @IR(counts = { IRNode.LOAD_VECTOR_L, "=0", IRNode.STORE_VECTOR, "=0" }) // temporary
525     // @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" })
526     // FAILS: adr is CastX2P
527     // See: JDK-8331576
528     public static void testOffHeapLong3a(long dest, long[] src) {
529         for (int i = 0; i < src.length - 1; i++) {
530             UNSAFE.putLongUnaligned(null, dest + 8 * (i + 1), handleByteOrder(src[i]));
531         }
532     }
533 
534     @Test
535     @IR(counts = { IRNode.LOAD_VECTOR_L, "=0", IRNode.STORE_VECTOR, "=0" }) // temporary
536     // @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" })
537     // FAILS: adr is CastX2P
538     // See: JDK-8331576
539     public static void testOffHeapLong3b(long dest, long[] src) {
540         for (int i = 0; i < src.length - 1; i++) {
541             UNSAFE.putLongUnaligned(null, dest + 8L * (i + 1), handleByteOrder(src[i]));
542         }
543     }
544 
545     @Run(test = {"testOffHeapLong3a", "testOffHeapLong3b"})
546     public static void testOffHeapLong3_runner() {
547         runAndVerify3(() -> testOffHeapLong3a(baseOffHeap, longArray), 8);
548         runAndVerify3(() -> testOffHeapLong3b(baseOffHeap, longArray), 8);
549     }
550 
551     @Test
552     @IR(counts = { IRNode.LOAD_VECTOR_L, "=0", IRNode.STORE_VECTOR, "=0" }) // temporary
553     // @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
554     //     applyIf = {"AlignVector", "false"})
555     // FAILS: adr is CastX2P
556     // See: JDK-8331576
557     // AlignVector cannot guarantee that invar is aligned.
558     public static void testOffHeapLong4a(long dest, long[] src, int start, int stop) {
559         for (int i = start; i < stop; i++) {
560             UNSAFE.putLongUnaligned(null, dest + 8 * i + baseOffset, handleByteOrder(src[i]));
561         }
562     }
563 
564     @Test
565     @IR(counts = { IRNode.LOAD_VECTOR_L, "=0", IRNode.STORE_VECTOR, "=0" }) // temporary
566     // @IR(counts = { IRNode.LOAD_VECTOR_L, ">=1", IRNode.STORE_VECTOR, ">=1" },
567     //     applyIf = {"AlignVector", "false"})
568     // FAILS: adr is CastX2P
569     // See: JDK-8331576
570     // AlignVector cannot guarantee that invar is aligned.
571     public static void testOffHeapLong4b(long dest, long[] src, int start, int stop) {
572         for (int i = start; i < stop; i++) {
573             UNSAFE.putLongUnaligned(null, dest + 8L * i + baseOffset, handleByteOrder(src[i]));
574         }
575     }
576 
577     @Run(test = {"testOffHeapLong4a", "testOffHeapLong4b"})
578     public static void testOffHeapLong4_runner() {
579         baseOffset = 8;
580         runAndVerify3(() -> testOffHeapLong4a(baseOffHeap, longArray, 0, size-1), 8);
581         runAndVerify3(() -> testOffHeapLong4b(baseOffHeap, longArray, 0, size-1), 8);
582     }
583 }