Wed, 22 Jan 2014 12:37:28 -0800
Added tag jdk8u5-b05 for changeset b90de55aca30
roland@5991 | 1 | /* |
roland@5991 | 2 | * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
roland@5991 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
roland@5991 | 4 | * |
roland@5991 | 5 | * This code is free software; you can redistribute it and/or modify it |
roland@5991 | 6 | * under the terms of the GNU General Public License version 2 only, as |
roland@5991 | 7 | * published by the Free Software Foundation. |
roland@5991 | 8 | * |
roland@5991 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
roland@5991 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
roland@5991 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
roland@5991 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
roland@5991 | 13 | * accompanied this code). |
roland@5991 | 14 | * |
roland@5991 | 15 | * You should have received a copy of the GNU General Public License version |
roland@5991 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
roland@5991 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
roland@5991 | 18 | * |
roland@5991 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
roland@5991 | 20 | * or visit www.oracle.com if you need additional information or have any |
roland@5991 | 21 | * questions. |
roland@5991 | 22 | */ |
roland@5991 | 23 | |
roland@5991 | 24 | /* |
roland@5991 | 25 | * @test |
roland@5991 | 26 | * @bug 8024070 |
roland@5991 | 27 | * @summary Test that type speculation doesn't cause incorrect execution |
roland@5991 | 28 | * @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation -XX:TypeProfileLevel=222 TypeSpeculation |
roland@5991 | 29 | * |
roland@5991 | 30 | */ |
roland@5991 | 31 | |
roland@5991 | 32 | public class TypeSpeculation { |
roland@5991 | 33 | |
roland@5991 | 34 | interface I { |
roland@5991 | 35 | } |
roland@5991 | 36 | |
roland@5991 | 37 | static class A { |
roland@5991 | 38 | int m() { |
roland@5991 | 39 | return 1; |
roland@5991 | 40 | } |
roland@5991 | 41 | } |
roland@5991 | 42 | |
roland@5991 | 43 | static class B extends A implements I { |
roland@5991 | 44 | int m() { |
roland@5991 | 45 | return 2; |
roland@5991 | 46 | } |
roland@5991 | 47 | } |
roland@5991 | 48 | |
roland@5991 | 49 | static class C extends B { |
roland@5991 | 50 | int m() { |
roland@5991 | 51 | return 3; |
roland@5991 | 52 | } |
roland@5991 | 53 | } |
roland@5991 | 54 | |
roland@5991 | 55 | static int test1_invokevirtual(A a) { |
roland@5991 | 56 | return a.m(); |
roland@5991 | 57 | } |
roland@5991 | 58 | |
roland@5991 | 59 | static int test1_1(A a) { |
roland@5991 | 60 | return test1_invokevirtual(a); |
roland@5991 | 61 | } |
roland@5991 | 62 | |
roland@5991 | 63 | static boolean test1() { |
roland@5991 | 64 | A a = new A(); |
roland@5991 | 65 | B b = new B(); |
roland@5991 | 66 | C c = new C(); |
roland@5991 | 67 | |
roland@5991 | 68 | // pollute profile at test1_invokevirtual to make sure the |
roland@5991 | 69 | // compiler cannot rely on it |
roland@5991 | 70 | for (int i = 0; i < 5000; i++) { |
roland@5991 | 71 | test1_invokevirtual(a); |
roland@5991 | 72 | test1_invokevirtual(b); |
roland@5991 | 73 | test1_invokevirtual(c); |
roland@5991 | 74 | } |
roland@5991 | 75 | |
roland@5991 | 76 | // profiling + speculation should make test1_invokevirtual |
roland@5991 | 77 | // inline A.m() with a guard |
roland@5991 | 78 | for (int i = 0; i < 20000; i++) { |
roland@5991 | 79 | int res = test1_1(b); |
roland@5991 | 80 | if (res != b.m()) { |
roland@5991 | 81 | System.out.println("test1 failed with class B"); |
roland@5991 | 82 | return false; |
roland@5991 | 83 | } |
roland@5991 | 84 | } |
roland@5991 | 85 | // check that the guard works as expected by passing a |
roland@5991 | 86 | // different type |
roland@5991 | 87 | int res = test1_1(a); |
roland@5991 | 88 | if (res != a.m()) { |
roland@5991 | 89 | System.out.println("test1 failed with class A"); |
roland@5991 | 90 | return false; |
roland@5991 | 91 | } |
roland@5991 | 92 | return true; |
roland@5991 | 93 | } |
roland@5991 | 94 | |
roland@5991 | 95 | static int test2_invokevirtual(A a) { |
roland@5991 | 96 | return a.m(); |
roland@5991 | 97 | } |
roland@5991 | 98 | |
roland@5991 | 99 | static int test2_1(A a, boolean t) { |
roland@5991 | 100 | A aa; |
roland@5991 | 101 | if (t) { |
roland@5991 | 102 | aa = (B)a; |
roland@5991 | 103 | } else { |
roland@5991 | 104 | aa = a; |
roland@5991 | 105 | } |
roland@5991 | 106 | // if a of type B is passed to test2_1, the static type of aa |
roland@5991 | 107 | // here is no better than A but the profiled type is B so this |
roland@5991 | 108 | // should inline |
roland@5991 | 109 | return test2_invokevirtual(aa); |
roland@5991 | 110 | } |
roland@5991 | 111 | |
roland@5991 | 112 | static boolean test2() { |
roland@5991 | 113 | A a = new A(); |
roland@5991 | 114 | B b = new B(); |
roland@5991 | 115 | C c = new C(); |
roland@5991 | 116 | |
roland@5991 | 117 | // pollute profile at test2_invokevirtual to make sure the |
roland@5991 | 118 | // compiler cannot rely on it |
roland@5991 | 119 | for (int i = 0; i < 5000; i++) { |
roland@5991 | 120 | test2_invokevirtual(a); |
roland@5991 | 121 | test2_invokevirtual(b); |
roland@5991 | 122 | test2_invokevirtual(c); |
roland@5991 | 123 | } |
roland@5991 | 124 | |
roland@5991 | 125 | // profiling + speculation should make test2_invokevirtual |
roland@5991 | 126 | // inline A.m() with a guard |
roland@5991 | 127 | for (int i = 0; i < 20000; i++) { |
roland@5991 | 128 | int res = test2_1(b, (i % 2) == 0); |
roland@5991 | 129 | if (res != b.m()) { |
roland@5991 | 130 | System.out.println("test2 failed with class B"); |
roland@5991 | 131 | return false; |
roland@5991 | 132 | } |
roland@5991 | 133 | } |
roland@5991 | 134 | // check that the guard works as expected by passing a |
roland@5991 | 135 | // different type |
roland@5991 | 136 | int res = test2_1(a, false); |
roland@5991 | 137 | if (res != a.m()) { |
roland@5991 | 138 | System.out.println("test2 failed with class A"); |
roland@5991 | 139 | return false; |
roland@5991 | 140 | } |
roland@5991 | 141 | return true; |
roland@5991 | 142 | } |
roland@5991 | 143 | |
roland@5991 | 144 | static int test3_invokevirtual(A a) { |
roland@5991 | 145 | return a.m(); |
roland@5991 | 146 | } |
roland@5991 | 147 | |
roland@5991 | 148 | static void test3_2(A a) { |
roland@5991 | 149 | } |
roland@5991 | 150 | |
roland@5991 | 151 | static int test3_1(A a, int i) { |
roland@5991 | 152 | if (i == 0) { |
roland@5991 | 153 | return 0; |
roland@5991 | 154 | } |
roland@5991 | 155 | // If we come here and a is of type B but parameter profiling |
roland@5991 | 156 | // is polluted, both branches of the if below should have |
roland@5991 | 157 | // profiling that tell us and inlining of the virtual call |
roland@5991 | 158 | // should happen |
roland@5991 | 159 | if (i == 1) { |
roland@5991 | 160 | test3_2(a); |
roland@5991 | 161 | } else { |
roland@5991 | 162 | test3_2(a); |
roland@5991 | 163 | } |
roland@5991 | 164 | return test3_invokevirtual(a); |
roland@5991 | 165 | } |
roland@5991 | 166 | |
roland@5991 | 167 | static boolean test3() { |
roland@5991 | 168 | A a = new A(); |
roland@5991 | 169 | B b = new B(); |
roland@5991 | 170 | C c = new C(); |
roland@5991 | 171 | |
roland@5991 | 172 | // pollute profile at test3_invokevirtual and test3_1 to make |
roland@5991 | 173 | // sure the compiler cannot rely on it |
roland@5991 | 174 | for (int i = 0; i < 3000; i++) { |
roland@5991 | 175 | test3_invokevirtual(a); |
roland@5991 | 176 | test3_invokevirtual(b); |
roland@5991 | 177 | test3_invokevirtual(c); |
roland@5991 | 178 | test3_1(a, 0); |
roland@5991 | 179 | test3_1(b, 0); |
roland@5991 | 180 | } |
roland@5991 | 181 | |
roland@5991 | 182 | // profiling + speculation should make test3_invokevirtual |
roland@5991 | 183 | // inline A.m() with a guard |
roland@5991 | 184 | for (int i = 0; i < 20000; i++) { |
roland@5991 | 185 | int res = test3_1(b, (i % 2) + 1); |
roland@5991 | 186 | if (res != b.m()) { |
roland@5991 | 187 | System.out.println("test3 failed with class B"); |
roland@5991 | 188 | return false; |
roland@5991 | 189 | } |
roland@5991 | 190 | } |
roland@5991 | 191 | // check that the guard works as expected by passing a |
roland@5991 | 192 | // different type |
roland@5991 | 193 | int res = test3_1(a, 1); |
roland@5991 | 194 | if (res != a.m()) { |
roland@5991 | 195 | System.out.println("test3 failed with class A"); |
roland@5991 | 196 | return false; |
roland@5991 | 197 | } |
roland@5991 | 198 | return true; |
roland@5991 | 199 | } |
roland@5991 | 200 | |
roland@5991 | 201 | // Mix 2 incompatible profiled types |
roland@5991 | 202 | static int test4_invokevirtual(A a) { |
roland@5991 | 203 | return a.m(); |
roland@5991 | 204 | } |
roland@5991 | 205 | |
roland@5991 | 206 | static void test4_2(A a) { |
roland@5991 | 207 | } |
roland@5991 | 208 | |
roland@5991 | 209 | static int test4_1(A a, boolean b) { |
roland@5991 | 210 | if (b) { |
roland@5991 | 211 | test4_2(a); |
roland@5991 | 212 | } else { |
roland@5991 | 213 | test4_2(a); |
roland@5991 | 214 | } |
roland@5991 | 215 | // shouldn't inline |
roland@5991 | 216 | return test4_invokevirtual(a); |
roland@5991 | 217 | } |
roland@5991 | 218 | |
roland@5991 | 219 | static boolean test4() { |
roland@5991 | 220 | A a = new A(); |
roland@5991 | 221 | B b = new B(); |
roland@5991 | 222 | C c = new C(); |
roland@5991 | 223 | |
roland@5991 | 224 | // pollute profile at test3_invokevirtual and test3_1 to make |
roland@5991 | 225 | // sure the compiler cannot rely on it |
roland@5991 | 226 | for (int i = 0; i < 3000; i++) { |
roland@5991 | 227 | test4_invokevirtual(a); |
roland@5991 | 228 | test4_invokevirtual(b); |
roland@5991 | 229 | test4_invokevirtual(c); |
roland@5991 | 230 | } |
roland@5991 | 231 | |
roland@5991 | 232 | for (int i = 0; i < 20000; i++) { |
roland@5991 | 233 | if ((i % 2) == 0) { |
roland@5991 | 234 | int res = test4_1(a, true); |
roland@5991 | 235 | if (res != a.m()) { |
roland@5991 | 236 | System.out.println("test4 failed with class A"); |
roland@5991 | 237 | return false; |
roland@5991 | 238 | } |
roland@5991 | 239 | } else { |
roland@5991 | 240 | int res = test4_1(b, false); |
roland@5991 | 241 | if (res != b.m()) { |
roland@5991 | 242 | System.out.println("test4 failed with class B"); |
roland@5991 | 243 | return false; |
roland@5991 | 244 | } |
roland@5991 | 245 | } |
roland@5991 | 246 | } |
roland@5991 | 247 | return true; |
roland@5991 | 248 | } |
roland@5991 | 249 | |
roland@5991 | 250 | // Mix one profiled type with an incompatible type |
roland@5991 | 251 | static int test5_invokevirtual(A a) { |
roland@5991 | 252 | return a.m(); |
roland@5991 | 253 | } |
roland@5991 | 254 | |
roland@5991 | 255 | static void test5_2(A a) { |
roland@5991 | 256 | } |
roland@5991 | 257 | |
roland@5991 | 258 | static int test5_1(A a, boolean b) { |
roland@5991 | 259 | if (b) { |
roland@5991 | 260 | test5_2(a); |
roland@5991 | 261 | } else { |
roland@5991 | 262 | A aa = (B)a; |
roland@5991 | 263 | } |
roland@5991 | 264 | // shouldn't inline |
roland@5991 | 265 | return test5_invokevirtual(a); |
roland@5991 | 266 | } |
roland@5991 | 267 | |
roland@5991 | 268 | static boolean test5() { |
roland@5991 | 269 | A a = new A(); |
roland@5991 | 270 | B b = new B(); |
roland@5991 | 271 | C c = new C(); |
roland@5991 | 272 | |
roland@5991 | 273 | // pollute profile at test3_invokevirtual and test3_1 to make |
roland@5991 | 274 | // sure the compiler cannot rely on it |
roland@5991 | 275 | for (int i = 0; i < 3000; i++) { |
roland@5991 | 276 | test5_invokevirtual(a); |
roland@5991 | 277 | test5_invokevirtual(b); |
roland@5991 | 278 | test5_invokevirtual(c); |
roland@5991 | 279 | } |
roland@5991 | 280 | |
roland@5991 | 281 | for (int i = 0; i < 20000; i++) { |
roland@5991 | 282 | if ((i % 2) == 0) { |
roland@5991 | 283 | int res = test5_1(a, true); |
roland@5991 | 284 | if (res != a.m()) { |
roland@5991 | 285 | System.out.println("test5 failed with class A"); |
roland@5991 | 286 | return false; |
roland@5991 | 287 | } |
roland@5991 | 288 | } else { |
roland@5991 | 289 | int res = test5_1(b, false); |
roland@5991 | 290 | if (res != b.m()) { |
roland@5991 | 291 | System.out.println("test5 failed with class B"); |
roland@5991 | 292 | return false; |
roland@5991 | 293 | } |
roland@5991 | 294 | } |
roland@5991 | 295 | } |
roland@5991 | 296 | return true; |
roland@5991 | 297 | } |
roland@5991 | 298 | |
roland@5991 | 299 | // Mix incompatible profiled types |
roland@5991 | 300 | static void test6_2(Object o) { |
roland@5991 | 301 | } |
roland@5991 | 302 | |
roland@5991 | 303 | static Object test6_1(Object o, boolean b) { |
roland@5991 | 304 | if (b) { |
roland@5991 | 305 | test6_2(o); |
roland@5991 | 306 | } else { |
roland@5991 | 307 | test6_2(o); |
roland@5991 | 308 | } |
roland@5991 | 309 | return o; |
roland@5991 | 310 | } |
roland@5991 | 311 | |
roland@5991 | 312 | static boolean test6() { |
roland@5991 | 313 | A a = new A(); |
roland@5991 | 314 | A[] aa = new A[10]; |
roland@5991 | 315 | |
roland@5991 | 316 | for (int i = 0; i < 20000; i++) { |
roland@5991 | 317 | if ((i % 2) == 0) { |
roland@5991 | 318 | test6_1(a, true); |
roland@5991 | 319 | } else { |
roland@5991 | 320 | test6_1(aa, false); |
roland@5991 | 321 | } |
roland@5991 | 322 | } |
roland@5991 | 323 | return true; |
roland@5991 | 324 | } |
roland@5991 | 325 | |
roland@5991 | 326 | // Mix a profiled type with an incompatible type |
roland@5991 | 327 | static void test7_2(Object o) { |
roland@5991 | 328 | } |
roland@5991 | 329 | |
roland@5991 | 330 | static Object test7_1(Object o, boolean b) { |
roland@5991 | 331 | if (b) { |
roland@5991 | 332 | test7_2(o); |
roland@5991 | 333 | } else { |
roland@5991 | 334 | Object oo = (A[])o; |
roland@5991 | 335 | } |
roland@5991 | 336 | return o; |
roland@5991 | 337 | } |
roland@5991 | 338 | |
roland@5991 | 339 | static boolean test7() { |
roland@5991 | 340 | A a = new A(); |
roland@5991 | 341 | A[] aa = new A[10]; |
roland@5991 | 342 | |
roland@5991 | 343 | for (int i = 0; i < 20000; i++) { |
roland@5991 | 344 | if ((i % 2) == 0) { |
roland@5991 | 345 | test7_1(a, true); |
roland@5991 | 346 | } else { |
roland@5991 | 347 | test7_1(aa, false); |
roland@5991 | 348 | } |
roland@5991 | 349 | } |
roland@5991 | 350 | return true; |
roland@5991 | 351 | } |
roland@5991 | 352 | |
roland@5991 | 353 | // Mix a profiled type with an interface |
roland@5991 | 354 | static void test8_2(Object o) { |
roland@5991 | 355 | } |
roland@5991 | 356 | |
roland@5991 | 357 | static I test8_1(Object o) { |
roland@5991 | 358 | test8_2(o); |
roland@5991 | 359 | return (I)o; |
roland@5991 | 360 | } |
roland@5991 | 361 | |
roland@5991 | 362 | static boolean test8() { |
roland@5991 | 363 | A a = new A(); |
roland@5991 | 364 | B b = new B(); |
roland@5991 | 365 | C c = new C(); |
roland@5991 | 366 | |
roland@5991 | 367 | for (int i = 0; i < 20000; i++) { |
roland@5991 | 368 | test8_1(b); |
roland@5991 | 369 | } |
roland@5991 | 370 | return true; |
roland@5991 | 371 | } |
roland@5991 | 372 | |
roland@5991 | 373 | // Mix a profiled type with a constant |
roland@5991 | 374 | static void test9_2(Object o) { |
roland@5991 | 375 | } |
roland@5991 | 376 | |
roland@5991 | 377 | static Object test9_1(Object o, boolean b) { |
roland@5991 | 378 | Object oo; |
roland@5991 | 379 | if (b) { |
roland@5991 | 380 | test9_2(o); |
roland@5991 | 381 | oo = o; |
roland@5991 | 382 | } else { |
roland@5991 | 383 | oo = "some string"; |
roland@5991 | 384 | } |
roland@5991 | 385 | return oo; |
roland@5991 | 386 | } |
roland@5991 | 387 | |
roland@5991 | 388 | static boolean test9() { |
roland@5991 | 389 | A a = new A(); |
roland@5991 | 390 | |
roland@5991 | 391 | for (int i = 0; i < 20000; i++) { |
roland@5991 | 392 | if ((i % 2) == 0) { |
roland@5991 | 393 | test9_1(a, true); |
roland@5991 | 394 | } else { |
roland@5991 | 395 | test9_1(a, false); |
roland@5991 | 396 | } |
roland@5991 | 397 | } |
roland@5991 | 398 | return true; |
roland@5991 | 399 | } |
roland@5991 | 400 | |
roland@5991 | 401 | static public void main(String[] args) { |
roland@5991 | 402 | boolean success = true; |
roland@5991 | 403 | |
roland@5991 | 404 | success = test1() && success; |
roland@5991 | 405 | |
roland@5991 | 406 | success = test2() && success; |
roland@5991 | 407 | |
roland@5991 | 408 | success = test3() && success; |
roland@5991 | 409 | |
roland@5991 | 410 | success = test4() && success; |
roland@5991 | 411 | |
roland@5991 | 412 | success = test5() && success; |
roland@5991 | 413 | |
roland@5991 | 414 | success = test6() && success; |
roland@5991 | 415 | |
roland@5991 | 416 | success = test7() && success; |
roland@5991 | 417 | |
roland@5991 | 418 | success = test8() && success; |
roland@5991 | 419 | |
roland@5991 | 420 | success = test9() && success; |
roland@5991 | 421 | |
roland@5991 | 422 | if (success) { |
roland@5991 | 423 | System.out.println("TEST PASSED"); |
roland@5991 | 424 | } else { |
roland@5991 | 425 | throw new RuntimeException("TEST FAILED: erroneous bound check elimination"); |
roland@5991 | 426 | } |
roland@5991 | 427 | } |
roland@5991 | 428 | } |