2020-2-capstone-design2 / 2015104175

Go to a project
Toggle navigation Toggle navigation pinning
Switch branch/tag
arc.m 65.8 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -Wno-objc-root-class -Wno-incompatible-pointer-types -Wno-arc-unsafe-retained-assign -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -O2 -disable-llvm-passes -o - %s | FileCheck %s
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -Wno-objc-root-class -Wno-incompatible-pointer-types -Wno-arc-unsafe-retained-assign -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=CHECK-GLOBALS %s

// rdar://13129783. Check both native/non-native arc platforms. Here we check
// that they treat nonlazybind differently.
// RUN: %clang_cc1 -fobjc-runtime=macosx-10.6.0 -triple x86_64-apple-darwin10 -Wno-objc-root-class -Wno-incompatible-pointer-types -Wno-arc-unsafe-retained-assign -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=ARC-ALIEN %s
// RUN: %clang_cc1 -fobjc-runtime=macosx-10.7.0 -triple x86_64-apple-darwin11 -Wno-objc-root-class -Wno-incompatible-pointer-types -Wno-arc-unsafe-retained-assign -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=ARC-NATIVE %s

// ARC-ALIEN: declare extern_weak void @llvm.objc.storeStrong(i8**, i8*)
// ARC-ALIEN: declare extern_weak i8* @llvm.objc.retain(i8*)
// ARC-ALIEN: declare extern_weak i8* @llvm.objc.autoreleaseReturnValue(i8*)
// ARC-ALIEN: declare i8* @objc_msgSend(i8*, i8*, ...) [[NLB:#[0-9]+]]
// ARC-ALIEN: declare extern_weak void @llvm.objc.release(i8*)
// ARC-ALIEN: declare extern_weak i8* @llvm.objc.retainAutoreleasedReturnValue(i8*)
// ARC-ALIEN: declare extern_weak i8* @llvm.objc.initWeak(i8**, i8*)
// ARC-ALIEN: declare extern_weak i8* @llvm.objc.storeWeak(i8**, i8*)
// ARC-ALIEN: declare extern_weak i8* @llvm.objc.loadWeakRetained(i8**)
// ARC-ALIEN: declare extern_weak void @llvm.objc.destroyWeak(i8**)
// ARC-ALIEN: declare extern_weak i8* @llvm.objc.autorelease(i8*)
// ARC-ALIEN: declare extern_weak i8* @llvm.objc.retainAutorelease(i8*)

// ARC-NATIVE: declare void @llvm.objc.storeStrong(i8**, i8*)
// ARC-NATIVE: declare i8* @llvm.objc.retain(i8*)
// ARC-NATIVE: declare i8* @llvm.objc.autoreleaseReturnValue(i8*)
// ARC-NATIVE: declare i8* @objc_msgSend(i8*, i8*, ...) [[NLB:#[0-9]+]]
// ARC-NATIVE: declare void @llvm.objc.release(i8*)
// ARC-NATIVE: declare i8* @llvm.objc.retainAutoreleasedReturnValue(i8*)
// ARC-NATIVE: declare i8* @llvm.objc.initWeak(i8**, i8*)
// ARC-NATIVE: declare i8* @llvm.objc.storeWeak(i8**, i8*)
// ARC-NATIVE: declare i8* @llvm.objc.loadWeakRetained(i8**)
// ARC-NATIVE: declare void @llvm.objc.destroyWeak(i8**)
// ARC-NATIVE: declare i8* @llvm.objc.autorelease(i8*)
// ARC-NATIVE: declare i8* @llvm.objc.retainAutorelease(i8*)

// CHECK-LABEL: define void @test0
void test0(id x) {
  // CHECK:      [[X:%.*]] = alloca i8*
  // CHECK-NEXT: [[PARM:%.*]] = call i8* @llvm.objc.retain(i8* {{.*}})
  // CHECK-NEXT: store i8* [[PARM]], i8** [[X]]
  // CHECK-NEXT: [[TMP:%.*]] = load i8*, i8** [[X]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[TMP]])
  // CHECK-NEXT: ret void
}

// CHECK-LABEL: define i8* @test1(i8*
id test1(id x) {
  // CHECK:      [[X:%.*]] = alloca i8*
  // CHECK-NEXT: [[Y:%.*]] = alloca i8*
  // CHECK-NEXT: [[PARM:%.*]] = call i8* @llvm.objc.retain(i8* {{%.*}})
  // CHECK-NEXT: store i8* [[PARM]], i8** [[X]]
  // CHECK-NEXT: [[YPTR1:%.*]] = bitcast i8** [[Y]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[YPTR1]])
  // CHECK-NEXT: store i8* null, i8** [[Y]]
  // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]]
  // CHECK-NEXT: [[RET:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]])
  // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
  // CHECK-NEXT: [[YPTR2:%.*]] = bitcast i8** [[Y]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[YPTR2]])
  // CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[X]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
  // CHECK-NEXT: [[T1:%.*]] = tail call i8* @llvm.objc.autoreleaseReturnValue(i8* [[RET]])
  // CHECK-NEXT: ret i8* [[T1]]
  id y;
  return y;
}

@interface Test2
+ (void) class_method;
- (void) inst_method;
@end
@implementation Test2

// The self pointer of a class method is not retained.
// CHECK: define internal void @"\01+[Test2 class_method]"
// CHECK:      alloca
// CHECK-NEXT: alloca
// CHECK-NEXT: store
// CHECK-NEXT: store
// CHECK-NEXT: ret void
+ (void) class_method {}

// The self pointer of an instance method is not retained.
// CHECK: define internal void @"\01-[Test2 inst_method]"
// CHECK:      alloca
// CHECK-NEXT: alloca
// CHECK-NEXT: store
// CHECK-NEXT: store
// CHECK-NEXT: ret void
- (void) inst_method {}
@end

@interface Test3
+ (id) alloc;
- (id) initWith: (int) x;
- (id) copy;
@end

// CHECK-LABEL: define void @test3_unelided()
void test3_unelided() {
  extern void test3_helper(void);

  // CHECK:      [[X:%.*]] = alloca [[TEST3:%.*]]*
  // CHECK-NEXT: [[XPTR1:%.*]] = bitcast [[TEST3]]** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]])
  // CHECK-NEXT: store [[TEST3]]* null, [[TEST3]]** [[X]], align
  Test3 *x;

  // Call to +alloc.
  // CHECK-NEXT: load {{.*}}, {{.*}}* @"OBJC_CLASSLIST_REFERENCES_
  // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: [[ALLOC:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: call void @llvm.objc.release(i8*
  [Test3 alloc];

  // CHECK-NEXT: [[T0:%.*]] = load [[TEST3]]*, [[TEST3]]** [[X]]
  // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST3]]* [[T0]] to i8*
  // CHECK-NEXT: [[COPY:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend {{.*}})(i8* [[T1]],
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[COPY]]) [[NUW:#[0-9]+]]
  [x copy];

  // CHECK-NEXT: [[T0:%.*]] = load [[TEST3]]*, [[TEST3]]** [[X]]
  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST3]]* [[T0]] to i8*
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) [[NUW]]
  // CHECK-NEXT: [[XPTR2:%.*]] = bitcast [[TEST3]]** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]])
  // CHECK-NEXT: ret void
}

// CHECK-LABEL: define void @test3()
void test3() {
  // CHECK:      [[X:%.*]] = alloca i8*
  // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]])

  id x = [[Test3 alloc] initWith: 5];

  // Call to +alloc.
  // CHECK-NEXT: load {{.*}}, {{.*}}* @"OBJC_CLASSLIST_REFERENCES_
  // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: [[ALLOC:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
  // CHECK-NEXT: bitcast

  // Call to -initWith: with elided retain of consumed argument.
  // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: [[INIT:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i32)*)(i8* 
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: [[INIT:%.*]] = bitcast
  // Assignment for initialization, retention elided.
  // CHECK-NEXT: store i8* [[INIT]], i8** [[X]]

  // Call to -copy.
  // CHECK-NEXT: [[V:%.*]] = load i8*, i8** [[X]]
  // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: [[COPY:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend {{.*}})(i8* [[V]],

  // Assignment to x.
  // CHECK-NEXT: [[TMP:%.*]] = load i8*, i8** [[X]]
  // CHECK-NEXT: store i8* [[COPY]], i8** [[X]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[TMP]]) [[NUW]]

  x = [x copy];

  // Cleanup for x.
  // CHECK-NEXT: [[TMP:%.*]] = load i8*, i8** [[X]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[TMP]]) [[NUW]]
  // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]])
  // CHECK-NEXT: ret void
}

// CHECK-LABEL: define i8* @test4()
id test4() {
  // Call to +alloc.
  // CHECK:      load {{.*}}, {{.*}}* @"OBJC_CLASSLIST_REFERENCES_
  // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: [[ALLOC:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
  // CHECK-NEXT: [[ALLOC:%.*]] = bitcast

  // Call to -initWith: with elided retain of consumed argument.
  // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: [[ALLOC:%.*]] = bitcast
  // CHECK-NEXT: [[INIT:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i32)*)(i8* [[ALLOC]],

  // Initialization of return value, occurring within full-expression.
  // Retain/release elided.
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: [[INIT:%.*]] = bitcast
  // CHECK-NEXT: [[RET:%.*]] = tail call i8* @llvm.objc.autoreleaseReturnValue(i8* [[INIT]])

  // CHECK-NEXT: ret i8* [[RET]]

  return [[Test3 alloc] initWith: 6];
}

@interface Test5 {
@public
  id var;
}
@end

// CHECK-LABEL: define void @test5
void test5(Test5 *x, id y) {
  // Prologue.
  // CHECK:      [[X:%.*]] = alloca [[TEST5:%.*]]*,
  // CHECK-NEXT: [[Y:%.*]] = alloca i8*
  // CHECK-NEXT: bitcast [[TEST5]]* {{%.*}} to i8*
  // CHECK-NEXT: call i8* @llvm.objc.retain
  // CHECK-NEXT: [[PARMX:%.*]] = bitcast i8* {{%.*}} to [[TEST5]]*
  // CHECK-NEXT: store [[TEST5]]* [[PARMX]], [[TEST5]]** [[X]]
  // CHECK-NEXT: call i8* @llvm.objc.retain
  // CHECK-NEXT: store

  // CHECK-NEXT: load [[TEST5]]*, [[TEST5]]** [[X]]
  // CHECK-NEXT: load i64, i64* @"OBJC_IVAR_$_Test5.var"
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: getelementptr
  // CHECK-NEXT: [[VAR:%.*]] = bitcast
  // CHECK-NEXT: [[TMP:%.*]] = load i8*, i8** [[VAR]]
  // CHECK-NEXT: store i8* null, i8** [[VAR]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[TMP]]) [[NUW]]
  x->var = 0;

  // CHECK-NEXT: [[YVAL:%.*]] = load i8*, i8** [[Y]]
  // CHECK-NEXT: load [[TEST5]]*, [[TEST5]]** [[X]]
  // CHECK-NEXT: load i64, i64* @"OBJC_IVAR_$_Test5.var"
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: getelementptr
  // CHECK-NEXT: [[VAR:%.*]] = bitcast
  // CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.objc.retain(i8* [[YVAL]]) [[NUW]]
  // CHECK-NEXT: [[TMP:%.*]] = load i8*, i8** [[VAR]]
  // CHECK-NEXT: store i8* [[T0]], i8** [[VAR]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[TMP]]) [[NUW]]
  x->var = y;

  // Epilogue.
  // CHECK-NEXT: [[TMP:%.*]] = load i8*, i8** [[Y]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[TMP]]) [[NUW]]
  // CHECK-NEXT: [[T0:%.*]] = load [[TEST5]]*, [[TEST5]]** [[X]]
  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST5]]* [[T0]] to i8*
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) [[NUW]]
  // CHECK-NEXT: ret void
}

id test6_helper(void) __attribute__((ns_returns_retained));
// CHECK-LABEL: define void @test6()
void test6() {
  // CHECK:      [[X:%.*]] = alloca i8*
  // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]])
  // CHECK-NEXT: [[CALL:%.*]] = call i8* @test6_helper()
  // CHECK-NEXT: store i8* [[CALL]], i8** [[X]]
  // CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[X]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) [[NUW]], !clang.imprecise_release
  // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]])
  // CHECK-NEXT: ret void
  id x = test6_helper();
}

void test7_helper(id __attribute__((ns_consumed)));
// CHECK-LABEL: define void @test7()
void test7() {
  // CHECK:      [[X:%.*]] = alloca i8*
  // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]])
  // CHECK-NEXT: store i8* null, i8** [[X]]
  // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]]
  // CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]]) [[NUW]]
  // CHECK-NEXT: call void @test7_helper(i8* [[T1]])
  // CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[X]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) [[NUW]], !clang.imprecise_release
  // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]])
  // CHECK-NEXT: ret void
  id x;
  test7_helper(x);
}

id test8_helper(void) __attribute__((ns_returns_retained));
void test8() {
  __unsafe_unretained id x = test8_helper();
  // CHECK:      [[X:%.*]] = alloca i8*
  // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]])
  // CHECK-NEXT: [[T0:%.*]] = call i8* @test8_helper()
  // CHECK-NEXT: store i8* [[T0]], i8** [[X]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]], !clang.imprecise_release
  // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]])
  // CHECK-NEXT: ret void
}

@interface Test10
@property (retain) Test10 *me;
@end
void test10() {
  Test10 *x;
  id y = x.me.me;

  // CHECK-LABEL:      define void @test10()
  // CHECK:      [[X:%.*]] = alloca [[TEST10:%.*]]*, align
  // CHECK-NEXT: [[Y:%.*]] = alloca i8*, align
  // CHECK-NEXT: [[XPTR1:%.*]] = bitcast [[TEST10]]** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]])
  // CHECK-NEXT: store [[TEST10]]* null, [[TEST10]]** [[X]]
  // CHECK-NEXT: [[YPTR1:%.*]] = bitcast i8** [[Y]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[YPTR1]])
  // CHECK-NEXT: load [[TEST10]]*, [[TEST10]]** [[X]], align
  // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_{{[0-9]*}}
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: [[T0:%.*]] = call [[TEST10]]* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST10]]* [[T0]] to i8*
  // CHECK-NEXT: [[T2:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T1]])
  // CHECK-NEXT: [[V:%.*]] = bitcast i8* [[T2]] to [[TEST10]]*
  // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_{{[0-9]*}}
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: [[T0:%.*]] = call [[TEST10]]* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST10]]* [[T0]] to i8*
  // CHECK-NEXT: [[T2:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T1]])
  // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST10]]*
  // CHECK-NEXT: [[T4:%.*]] = bitcast [[TEST10]]* [[T3]] to i8*
  // CHECK-NEXT: store i8* [[T4]], i8** [[Y]]
  // CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST10]]* [[V]] to i8*
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
  // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
  // CHECK-NEXT: [[YPTR2:%.*]] = bitcast i8** [[Y]] to i8*
  // CHECK-NEXT: void @llvm.lifetime.end.p0i8(i64 8, i8* [[YPTR2]])
  // CHECK-NEXT: [[T0:%.*]] = load [[TEST10]]*, [[TEST10]]** [[X]]
  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST10]]* [[T0]] to i8*
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
  // CHECK-NEXT: [[XPTR2:%.*]] = bitcast [[TEST10]]** [[X]] to i8*
  // CHECK-NEXT: void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]])
  // CHECK-NEXT: ret void
}

void test11(id (*f)(void) __attribute__((ns_returns_retained))) {
  // CHECK-LABEL:      define void @test11(
  // CHECK:      [[F:%.*]] = alloca i8* ()*, align
  // CHECK-NEXT: [[X:%.*]] = alloca i8*, align
  // CHECK-NEXT: store i8* ()* {{%.*}}, i8* ()** [[F]], align
  // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]])
  // CHECK-NEXT: [[T0:%.*]] = load i8* ()*, i8* ()** [[F]], align
  // CHECK-NEXT: [[T1:%.*]] = call i8* [[T0]]()
  // CHECK-NEXT: store i8* [[T1]], i8** [[X]], align
  // CHECK-NEXT: [[T3:%.*]] = load i8*, i8** [[X]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T3]]) [[NUW]], !clang.imprecise_release
  // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]])
  // CHECK-NEXT: ret void
  id x = f();
}

void test12(void) {
  extern id test12_helper(void);

  // CHECK-LABEL:      define void @test12()
  // CHECK:      [[X:%.*]] = alloca i8*, align
  // CHECK-NEXT: [[Y:%.*]] = alloca i8*, align

  __weak id x = test12_helper();
  // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]])
  // CHECK-NEXT: [[T0:%.*]] = call i8* @test12_helper()
  // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]])
  // CHECK-NEXT: call i8* @llvm.objc.initWeak(i8** [[X]], i8* [[T1]])
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])

  x = test12_helper();
  // CHECK-NEXT: [[T0:%.*]] = call i8* @test12_helper()
  // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]])
  // CHECK-NEXT: call i8* @llvm.objc.storeWeak(i8** [[X]], i8* [[T1]])
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])

  id y = x;
  // CHECK-NEXT: [[YPTR1:%.*]] = bitcast i8** [[Y]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[YPTR1]])
  // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.loadWeakRetained(i8** [[X]])
  // CHECK-NEXT: store i8* [[T2]], i8** [[Y]], align

  // CHECK-NEXT: [[T4:%.*]] = load i8*, i8** [[Y]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T4]]) [[NUW]], !clang.imprecise_release
  // CHECK-NEXT: [[YPTR2:%.*]] = bitcast i8** [[Y]] to i8*
  // CHECK-NEXT: void @llvm.lifetime.end.p0i8(i64 8, i8* [[YPTR2]])
  // CHECK-NEXT: call void @llvm.objc.destroyWeak(i8** [[X]])
  // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]])
  // CHECK: ret void
}

// Indirect consuming calls.
void test13(void) {
  // CHECK-LABEL:      define void @test13()
  // CHECK:      [[X:%.*]] = alloca i8*, align
  // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]])
  // CHECK-NEXT: store i8* null, i8** [[X]], align
  id x;

  typedef void fnty(id __attribute__((ns_consumed)));
  extern fnty *test13_func;
  // CHECK-NEXT: [[FN:%.*]] = load void (i8*)*, void (i8*)** @test13_func, align
  // CHECK-NEXT: [[X_VAL:%.*]] = load i8*, i8** [[X]], align
  // CHECK-NEXT: [[X_TMP:%.*]] = call i8* @llvm.objc.retain(i8* [[X_VAL]]) [[NUW]]
  // CHECK-NEXT: call void [[FN]](i8* [[X_TMP]])
  test13_func(x);

  extern fnty ^test13_block;
  // CHECK-NEXT: [[TMP:%.*]] = load void (i8*)*, void (i8*)** @test13_block, align
  // CHECK-NEXT: [[BLOCK:%.*]] = bitcast void (i8*)* [[TMP]] to [[BLOCKTY:%.*]]*
  // CHECK-NEXT: [[BLOCK_FN_PTR:%.*]] = getelementptr inbounds [[BLOCKTY]], [[BLOCKTY]]* [[BLOCK]], i32 0, i32 3
  // CHECK-NEXT: [[BLOCK_OPAQUE:%.*]] = bitcast [[BLOCKTY]]* [[BLOCK]] to i8*
  // CHECK-NEXT: [[X_VAL:%.*]] = load i8*, i8** [[X]], align
  // CHECK-NEXT: [[X_TMP:%.*]] = call i8* @llvm.objc.retain(i8* [[X_VAL]]) [[NUW]]
  // CHECK-NEXT: [[BLOCK_FN_TMP:%.*]] = load i8*, i8** [[BLOCK_FN_PTR]]
  // CHECK-NEXT: [[BLOCK_FN:%.*]] = bitcast i8* [[BLOCK_FN_TMP]] to void (i8*, i8*)*
  // CHECK-NEXT: call void [[BLOCK_FN]](i8* [[BLOCK_OPAQUE]], i8* [[X_TMP]])
  test13_block(x);

  // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]]
  // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]])
  // CHECK-NEXT: ret void
}

@interface Test16_super @end
@interface Test16 : Test16_super {
  id z;
}
@property (assign) int x;
@property (retain) id y;
- (void) dealloc;
@end
@implementation Test16
@synthesize x;
@synthesize y;
- (void) dealloc {
  // CHECK:    define internal void @"\01-[Test16 dealloc]"(
  // CHECK:      [[SELF:%.*]] = alloca [[TEST16:%.*]]*, align
  // CHECK-NEXT: [[CMD:%.*]] = alloca i8*, align
  // CHECK-NEXT: alloca
  // CHECK-NEXT: store [[TEST16]]* {{%.*}}, [[TEST16]]** [[SELF]], align
  // CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
  // CHECK-NEXT: [[BASE:%.*]] = load [[TEST16]]*, [[TEST16]]** [[SELF]]

  // Call super.
  // CHECK-NEXT: [[BASE2:%.*]] = bitcast [[TEST16]]* [[BASE]] to i8*
  // CHECK-NEXT: [[T0:%.*]] = getelementptr
  // CHECK-NEXT: store i8* [[BASE2]], i8** [[T0]]
  // CHECK-NEXT: load {{%.*}}*, {{%.*}}** @"OBJC_CLASSLIST_SUP_REFS_$_
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: getelementptr
  // CHECK-NEXT: store
  // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: call void bitcast (i8* ({{.*}})* @objc_msgSendSuper2 to void (
  // CHECK-NEXT: ret void
}

// .cxx_destruct
  // CHECK:    define internal void @"\01-[Test16 .cxx_destruct]"(
  // CHECK:      [[SELF:%.*]] = alloca [[TEST16:%.*]]*, align
  // CHECK-NEXT: [[CMD:%.*]] = alloca i8*, align
  // CHECK-NEXT: store [[TEST16]]* {{%.*}}, [[TEST16]]** [[SELF]], align
  // CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
  // CHECK-NEXT: [[BASE:%.*]] = load [[TEST16]]*, [[TEST16]]** [[SELF]]

  // Destroy y.
  // CHECK-NEXT: [[Y_OFF:%.*]] = load i64, i64* @"OBJC_IVAR_$_Test16.y"
  // CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST16]]* [[BASE]] to i8*
  // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 [[Y_OFF]]
  // CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to i8**
  // CHECK-NEXT: call void @llvm.objc.storeStrong(i8** [[T2]], i8* null) [[NUW]]

  // Destroy z.
  // CHECK-NEXT: [[Z_OFF:%.*]] = load i64, i64* @"OBJC_IVAR_$_Test16.z"
  // CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST16]]* [[BASE]] to i8*
  // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 [[Z_OFF]]
  // CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to i8**
  // CHECK-NEXT: call void @llvm.objc.storeStrong(i8** [[T2]], i8* null) [[NUW]]

  // CHECK-NEXT: ret void

@end

// This shouldn't crash.
@interface Test17A
@property (assign) int x;
@end
@interface Test17B : Test17A
@end
@implementation Test17B
- (int) x { return super.x + 1; }
@end

void test19() {
  // CHECK-LABEL: define void @test19()
  // CHECK:      [[X:%.*]] = alloca [5 x i8*], align 16
  // CHECK: call void @llvm.lifetime.start
  // CHECK-NEXT: [[T0:%.*]] = bitcast [5 x i8*]* [[X]] to i8*
  // CHECK: call void @llvm.memset.p0i8.i64(i8* align 16 [[T0]], i8 0, i64 40, i1 false)
  id x[5];

  extern id test19_helper(void);
  x[2] = test19_helper();

  // CHECK-NEXT: [[CALL:%.*]] = call i8* @test19_helper()
  // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[CALL]]) [[NUW]]
  // CHECK-NEXT: [[SLOT:%.*]] = getelementptr inbounds [5 x i8*], [5 x i8*]* [[X]], i64 0, i64 2
  // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[SLOT]]
  // CHECK-NEXT: store i8* [[T1]], i8** [[SLOT]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]]

  // CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [5 x i8*], [5 x i8*]* [[X]], i32 0, i32 0
  // CHECK-NEXT: [[END:%.*]] = getelementptr inbounds i8*, i8** [[BEGIN]], i64 5
  // CHECK-NEXT: br label

  // CHECK:      [[AFTER:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[NEXT:%.*]], {{%.*}} ]
  // CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds i8*, i8** [[AFTER]], i64 -1
  // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[CUR]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]], !clang.imprecise_release
  // CHECK-NEXT: [[EQ:%.*]] = icmp eq i8** [[CUR]], [[BEGIN]]
  // CHECK-NEXT: br i1 [[EQ]],

  // CHECK:      ret void
}

void test20(unsigned n) {
  // CHECK-LABEL: define void @test20
  // CHECK:      [[N:%.*]] = alloca i32, align 4
  // CHECK-NEXT: [[SAVED_STACK:%.*]] = alloca i8*
  // CHECK-NEXT: [[VLA_EXPR:%.*]] = alloca i64, align 8
  // CHECK-NEXT: store i32 {{%.*}}, i32* [[N]], align 4

  id x[n];

  // Capture the VLA size.
  // CHECK-NEXT: [[T0:%.*]] = load i32, i32* [[N]], align 4
  // CHECK-NEXT: [[DIM:%.*]] = zext i32 [[T0]] to i64

  // Save the stack pointer.
  // CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.stacksave()
  // CHECK-NEXT: store i8* [[T0]], i8** [[SAVED_STACK]]

  // Allocate the VLA.
  // CHECK-NEXT: [[VLA:%.*]] = alloca i8*, i64 [[DIM]], align 16

  // Store the VLA #elements expression.
  // CHECK-NEXT: store i64 [[DIM]], i64* [[VLA_EXPR]], align 8

  // Zero-initialize.
  // CHECK-NEXT: [[T0:%.*]] = bitcast i8** [[VLA]] to i8*
  // CHECK-NEXT: [[T1:%.*]] = mul nuw i64 [[DIM]], 8
  // CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 16 [[T0]], i8 0, i64 [[T1]], i1 false)

  // Destroy.
  // CHECK-NEXT: [[END:%.*]] = getelementptr inbounds i8*, i8** [[VLA]], i64 [[DIM]]
  // CHECK-NEXT: [[EMPTY:%.*]] = icmp eq i8** [[VLA]], [[END]]
  // CHECK-NEXT: br i1 [[EMPTY]]

  // CHECK:      [[AFTER:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ]
  // CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds i8*, i8** [[AFTER]], i64 -1
  // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[CUR]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]], !clang.imprecise_release
  // CHECK-NEXT: [[EQ:%.*]] = icmp eq i8** [[CUR]], [[VLA]]
  // CHECK-NEXT: br i1 [[EQ]],

  // CHECK:      [[T0:%.*]] = load i8*, i8** [[SAVED_STACK]]
  // CHECK-NEXT: call void @llvm.stackrestore(i8* [[T0]])
  // CHECK-NEXT: ret void
}

void test21(unsigned n) {
  // CHECK-LABEL: define void @test21
  // CHECK:      [[N:%.*]] = alloca i32, align 4
  // CHECK-NEXT: [[SAVED_STACK:%.*]] = alloca i8*
  // CHECK-NEXT: [[VLA_EXPR:%.*]] = alloca i64, align 8
  // CHECK-NEXT: store i32 {{%.*}}, i32* [[N]], align 4

  id x[2][n][3];

  // Capture the VLA size.
  // CHECK-NEXT: [[T0:%.*]] = load i32, i32* [[N]], align 4
  // CHECK-NEXT: [[DIM:%.*]] = zext i32 [[T0]] to i64

  // CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.stacksave()
  // CHECK-NEXT: store i8* [[T0]], i8** [[SAVED_STACK]]


  // Allocate the VLA.
  // CHECK-NEXT: [[T0:%.*]] = mul nuw i64 2, [[DIM]]
  // CHECK-NEXT: [[VLA:%.*]] = alloca [3 x i8*], i64 [[T0]], align 16

  // Store the VLA #elements expression.
  // CHECK-NEXT: store i64 [[DIM]], i64* [[VLA_EXPR]], align 8

  // Zero-initialize.
  // CHECK-NEXT: [[T0:%.*]] = bitcast [3 x i8*]* [[VLA]] to i8*
  // CHECK-NEXT: [[T1:%.*]] = mul nuw i64 2, [[DIM]]
  // CHECK-NEXT: [[T2:%.*]] = mul nuw i64 [[T1]], 24
  // CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 16 [[T0]], i8 0, i64 [[T2]], i1 false)

  // Destroy.
  // CHECK-NEXT: [[T0:%.*]] = mul nuw i64 2, [[DIM]]
  // CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [3 x i8*], [3 x i8*]* [[VLA]], i32 0, i32 0
  // CHECK-NEXT: [[T1:%.*]] = mul nuw i64 [[T0]], 3
  // CHECK-NEXT: [[END:%.*]] = getelementptr inbounds i8*, i8** [[BEGIN]], i64 [[T1]]
  // CHECK-NEXT: [[EMPTY:%.*]] = icmp eq i8** [[BEGIN]], [[END]]
  // CHECK-NEXT: br i1 [[EMPTY]]

  // CHECK:      [[AFTER:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ]
  // CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds i8*, i8** [[AFTER]], i64 -1
  // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[CUR]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]], !clang.imprecise_release
  // CHECK-NEXT: [[EQ:%.*]] = icmp eq i8** [[CUR]], [[BEGIN]]
  // CHECK-NEXT: br i1 [[EQ]],

  // CHECK:      [[T0:%.*]] = load i8*, i8** [[SAVED_STACK]]
  // CHECK-NEXT: call void @llvm.stackrestore(i8* [[T0]])
  // CHECK-NEXT: ret void
}

// rdar://problem/8922540
//   Note that we no longer emit .release_ivars flags.
// rdar://problem/12492434
//   Note that we set the flag saying that we need destruction *and*
//   the flag saying that we don't also need construction.
// CHECK-GLOBALS: @"_OBJC_CLASS_RO_$_Test23" = internal global [[RO_T:%.*]] { i32 390,
@interface Test23 { id x; } @end
@implementation Test23 @end

// CHECK-GLOBALS: @"_OBJC_CLASS_RO_$_Test24" = internal global [[RO_T:%.*]] { i32 130,
@interface Test24 {} @end
@implementation Test24 @end

// rdar://problem/8941012
@interface Test26 { id x[4]; } @end
@implementation Test26 @end
// CHECK:    define internal void @"\01-[Test26 .cxx_destruct]"(
// CHECK:      [[SELF:%.*]] = load [[TEST26:%.*]]*, [[TEST26:%.*]]**
// CHECK-NEXT: [[OFFSET:%.*]] = load i64, i64* @"OBJC_IVAR_$_Test26.x"
// CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST26]]* [[SELF]] to i8*
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 [[OFFSET]]
// CHECK-NEXT: [[X:%.*]] = bitcast i8* [[T1]] to [4 x i8*]*
// CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [4 x i8*], [4 x i8*]* [[X]], i32 0, i32 0
// CHECK-NEXT: [[END:%.*]] = getelementptr inbounds i8*, i8** [[BEGIN]], i64 4
// CHECK-NEXT: br label
// CHECK:      [[PAST:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ]
// CHECK-NEXT: [[CUR]] = getelementptr inbounds i8*, i8** [[PAST]], i64 -1
// CHECK-NEXT: call void @llvm.objc.storeStrong(i8** [[CUR]], i8* null)
// CHECK-NEXT: [[ISDONE:%.*]] = icmp eq i8** [[CUR]], [[BEGIN]]
// CHECK-NEXT: br i1 [[ISDONE]],
// CHECK:      ret void

// Check that 'init' retains self.
@interface Test27
- (id) init;
@end
@implementation Test27
- (id) init { return self; }
// CHECK:    define internal i8* @"\01-[Test27 init]"
// CHECK:      [[SELF:%.*]] = alloca [[TEST27:%.*]]*,
// CHECK-NEXT: [[CMD:%.*]] = alloca i8*,
// CHECK-NEXT: store [[TEST27]]* {{%.*}}, [[TEST27]]** [[SELF]]
// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
// CHECK-NEXT: [[T0:%.*]] = load [[TEST27]]*, [[TEST27]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST27]]* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST27]]*
// CHECK-NEXT: [[RET:%.*]] = bitcast [[TEST27]]* [[T3]] to i8*
// CHECK-NEXT: [[T0:%.*]] = load [[TEST27]]*, [[TEST27]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST27]]* [[T0]] to i8*
// CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
// CHECK-NEXT: ret i8* [[RET]]

@end

// rdar://problem/8087194
@interface Test28
@property (copy) id prop;
@end
@implementation Test28
@synthesize prop;
@end
// CHECK:    define internal void @"\01-[Test28 .cxx_destruct]"
// CHECK:      [[SELF:%.*]] = load [[TEST28:%.*]]*, [[TEST28:%.*]]**
// CHECK-NEXT: [[OFFSET:%.*]] = load i64, i64* @"OBJC_IVAR_$_Test28.prop"
// CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST28]]* [[SELF]] to i8*
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8, i8* [[T0]], i64 [[OFFSET]]
// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to i8**
// CHECK-NEXT: call void @llvm.objc.storeStrong(i8** [[T2]], i8* null)
// CHECK-NEXT: ret void

@interface Test29_super
- (id) initWithAllocator: (id) allocator;
@end
@interface Test29 : Test29_super
- (id) init;
- (id) initWithAllocator: (id) allocator;
@end
@implementation Test29
static id _test29_allocator = 0;
- (id) init {
// CHECK:    define internal i8* @"\01-[Test29 init]"([[TEST29:%[^*]*]]* {{%.*}},
// CHECK:      [[SELF:%.*]] = alloca [[TEST29]]*, align 8
// CHECK-NEXT: [[CMD:%.*]] = alloca i8*, align 8
// CHECK-NEXT: store [[TEST29]]* {{%.*}}, [[TEST29]]** [[SELF]]
// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]

// Evaluate arguments.  Note that the send argument is evaluated
// before the zeroing of self.
// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]*, [[TEST29]]** [[SELF]], align 8
// CHECK-NEXT: [[T1:%.*]] = load i8*, i8** @_test29_allocator, align 8

// Implicit null of 'self', i.e. direct transfer of ownership.
// CHECK-NEXT: store [[TEST29]]* null, [[TEST29]]** [[SELF]]

// Actual message send.
// CHECK-NEXT: [[T2:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: [[T3:%.*]] = bitcast [[TEST29]]* [[T0]] to i8*
// CHECK-NEXT: [[CALL:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i8*)*)(i8* [[T3]], i8* [[T2]], i8* [[T1]])

// Implicit write of result back into 'self'.  This is not supposed to
// be detectable because we're supposed to ban accesses to the old
// self value past the delegate init call.
// CHECK-NEXT: [[T0:%.*]] = bitcast i8* [[CALL]] to [[TEST29]]*
// CHECK-NEXT: store [[TEST29]]* [[T0]], [[TEST29]]** [[SELF]]

// Return statement.
// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[CALL]]
// CHECK-NEXT: [[CALL:%.*]] = bitcast
// CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.objc.retain(i8* [[CALL]]) [[NUW]]
// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[TEST29]]*
// CHECK-NEXT: [[RET:%.*]] = bitcast [[TEST29]]* [[T1]] to i8*

// Cleanup.
// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]*, [[TEST29]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST29]]* [[T0]] to i8*
// CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) [[NUW]], !clang.imprecise_release

// Return.
// CHECK-NEXT: ret i8* [[RET]]
  return [self initWithAllocator: _test29_allocator];
}
- (id) initWithAllocator: (id) allocator {
// CHECK:    define internal i8* @"\01-[Test29 initWithAllocator:]"(
// CHECK:      [[SELF:%.*]] = alloca [[TEST29]]*, align 8
// CHECK-NEXT: [[CMD:%.*]] = alloca i8*, align 8
// CHECK-NEXT: [[ALLOCATOR:%.*]] = alloca i8*, align 8
// CHECK-NEXT: alloca
// CHECK-NEXT: store [[TEST29]]* {{%.*}}, [[TEST29]]** [[SELF]]
// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
// CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.objc.retain(i8* {{%.*}})
// CHECK-NEXT: store i8* [[T0]], i8** [[ALLOCATOR]]

// Evaluate arguments.  Note that the send argument is evaluated
// before the zeroing of self.
// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]*, [[TEST29]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[ALLOCATOR]], align 8

// Implicit null of 'self', i.e. direct transfer of ownership.
// CHECK-NEXT: store [[TEST29]]* null, [[TEST29]]** [[SELF]]

// Actual message send.
// CHECK:      [[CALL:%.*]] = call {{.*}} @objc_msgSendSuper2

// Implicit write of result back into 'self'.  This is not supposed to
// be detectable because we're supposed to ban accesses to the old
// self value past the delegate init call.
// CHECK-NEXT: [[T0:%.*]] = bitcast i8* [[CALL]] to [[TEST29]]*
// CHECK-NEXT: store [[TEST29]]* [[T0]], [[TEST29]]** [[SELF]]

// Assignment.
// CHECK-NEXT: [[T0:%.*]] = bitcast i8* [[CALL]] to [[TEST29]]*
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST29]]* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]]) [[NUW]]
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST29]]*
// CHECK-NEXT: [[T4:%.*]] = load [[TEST29]]*, [[TEST29]]** [[SELF]], align
// CHECK-NEXT: store [[TEST29]]* [[T3]], [[TEST29]]** [[SELF]], align
// CHECK-NEXT: [[T5:%.*]] = bitcast [[TEST29]]* [[T4]] to i8*
// CHECK-NEXT: call void @llvm.objc.release(i8* [[T5]])

// Return statement.
// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]*, [[TEST29]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST29]]* [[T0]] to i8*
// CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]]) [[NUW]]
// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[TEST29]]*
// CHECK-NEXT: [[RET:%.*]] = bitcast [[TEST29]]* [[T1]] to i8*

// Cleanup.
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[ALLOCATOR]]
// CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]]) [[NUW]], !clang.imprecise_release

// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]*, [[TEST29]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST29]]* [[T0]] to i8*
// CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]]) [[NUW]], !clang.imprecise_release

// Return.
// CHECK-NEXT: ret i8* [[RET]]
  self = [super initWithAllocator: allocator];
  return self;
}
@end

typedef struct Test30_helper Test30_helper;
@interface Test30
- (id) init;
- (Test30_helper*) initHelper;
@end
@implementation Test30 {
char *helper;
}
- (id) init {
// CHECK:    define internal i8* @"\01-[Test30 init]"([[TEST30:%[^*]*]]* {{%.*}},
// CHECK:      [[RET:%.*]] = alloca [[TEST30]]*
// CHECK-NEXT: alloca i8*
// CHECK-NEXT: store [[TEST30]]* {{%.*}}, [[TEST30]]** [[SELF]]
// CHECK-NEXT: store

// Call.
// CHECK-NEXT: [[T0:%.*]] = load [[TEST30]]*, [[TEST30]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST30]]* [[T0]] to i8*
// CHECK-NEXT: [[CALL:%.*]] = call [[TEST30_HELPER:%.*]]* bitcast {{.*}} @objc_msgSend {{.*}}(i8* [[T2]], i8* [[T1]])

// Assignment.
// CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST30_HELPER]]* [[CALL]] to i8*
// CHECK-NEXT: [[T1:%.*]] = load [[TEST30]]*, [[TEST30]]** [[SELF]]
// CHECK-NEXT: [[IVAR:%.*]] = load i64, i64* @"OBJC_IVAR_$_Test30.helper"
// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST30]]* [[T1]] to i8*
// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8, i8* [[T2]], i64 [[IVAR]]
// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
// CHECK-NEXT#: [[T5:%.*]] = load i8*, i8** [[T4]]
// CHECK-NEXT#: [[T6:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]])
// CHECK-NEXT#: call void @llvm.objc.release(i8* [[T5]])
// CHECK-NEXT: store i8* [[T0]], i8** [[T4]]

// Return.
// CHECK-NEXT: [[T0:%.*]] = load [[TEST30]]*, [[TEST30]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST30]]* [[T0]] to i8*
// CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]])
// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[TEST30]]*
// CHECK-NEXT: [[RET:%.*]] = bitcast [[TEST30]]* [[T1]] to i8*

// Cleanup.
// CHECK-NEXT: [[T0:%.*]] = load [[TEST30]]*, [[TEST30]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST30]]* [[T0]] to i8*
// CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])

// Epilogue.
// CHECK-NEXT: ret i8* [[RET]]
  self->helper = [self initHelper];
  return self;
}
- (Test30_helper*) initHelper {
// CHECK:    define internal [[TEST30_HELPER]]* @"\01-[Test30 initHelper]"(
// CHECK:      alloca
// CHECK-NEXT: alloca
// CHECK-NEXT: store
// CHECK-NEXT: store
// CHECK-NEXT: ret [[TEST30_HELPER]]* null
  return 0;
}

@end

__attribute__((ns_returns_retained)) id test32(void) {
// CHECK-LABEL:    define i8* @test32()
// CHECK:      [[CALL:%.*]] = call i8* @test32_helper()
// CHECK-NEXT: [[T0:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[CALL]])
// CHECK-NEXT: ret i8* [[T0]]
  extern id test32_helper(void);
  return test32_helper();
}

@class Test33_a;
@interface Test33
- (void) give: (Test33_a **) x;
- (void) take: (Test33_a **) x;
- (void) giveStrong: (out __strong Test33_a **) x;
- (void) takeStrong: (inout __strong Test33_a **) x;
- (void) giveOut: (out Test33_a **) x;
@end
void test33(Test33 *ptr) {
  Test33_a *a;
  [ptr give: &a];
  [ptr take: &a];
  [ptr giveStrong: &a];
  [ptr takeStrong: &a];
  [ptr giveOut: &a];

  // CHECK:    define void @test33([[TEST33:%.*]]*
  // CHECK:      [[PTR:%.*]] = alloca [[TEST33]]*
  // CHECK-NEXT: [[A:%.*]] = alloca [[A_T:%.*]]*
  // CHECK-NEXT: [[TEMP0:%.*]] = alloca [[A_T]]*
  // CHECK-NEXT: [[TEMP1:%.*]] = alloca [[A_T]]*
  // CHECK-NEXT: [[TEMP2:%.*]] = alloca [[A_T]]*
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: llvm.objc.retain
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: store
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: call void @llvm.lifetime.start
  // CHECK-NEXT: store [[A_T]]* null, [[A_T]]** [[A]]

  // CHECK-NEXT: load [[TEST33]]*, [[TEST33]]** [[PTR]]
  // CHECK-NEXT: [[W0:%.*]] = load [[A_T]]*, [[A_T]]** [[A]]
  // CHECK-NEXT: store [[A_T]]* [[W0]], [[A_T]]** [[TEMP0]]
  // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[TEMP0]])
  // CHECK-NEXT: [[T0:%.*]] = load [[A_T]]*, [[A_T]]** [[TEMP0]]
  // CHECK-NEXT: [[T1:%.*]] = bitcast [[A_T]]* [[T0]] to i8*
  // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]])
  // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[A_T]]*
  // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use([[A_T]]* [[W0]]) [[NUW]]
  // CHECK-NEXT: [[T4:%.*]] = load [[A_T]]*, [[A_T]]** [[A]]
  // CHECK-NEXT: store [[A_T]]* [[T3]], [[A_T]]** [[A]]
  // CHECK-NEXT: [[T5:%.*]] = bitcast [[A_T]]* [[T4]] to i8*
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T5]])

  // CHECK-NEXT: load [[TEST33]]*, [[TEST33]]** [[PTR]]
  // CHECK-NEXT: [[W0:%.*]] = load [[A_T]]*, [[A_T]]** [[A]]
  // CHECK-NEXT: store [[A_T]]* [[W0]], [[A_T]]** [[TEMP1]]
  // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[TEMP1]])
  // CHECK-NEXT: [[T0:%.*]] = load [[A_T]]*, [[A_T]]** [[TEMP1]]
  // CHECK-NEXT: [[T1:%.*]] = bitcast [[A_T]]* [[T0]] to i8*
  // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]])
  // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[A_T]]*
  // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use([[A_T]]* [[W0]]) [[NUW]]
  // CHECK-NEXT: [[T4:%.*]] = load [[A_T]]*, [[A_T]]** [[A]]
  // CHECK-NEXT: store [[A_T]]* [[T3]], [[A_T]]** [[A]]
  // CHECK-NEXT: [[T5:%.*]] = bitcast [[A_T]]* [[T4]] to i8*
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T5]])

  // CHECK-NEXT: load [[TEST33]]*, [[TEST33]]** [[PTR]]
  // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[A]])

  // CHECK-NEXT: load [[TEST33]]*, [[TEST33]]** [[PTR]]
  // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[A]])

  // 'out'
  // CHECK-NEXT: load [[TEST33]]*, [[TEST33]]** [[PTR]]
  // CHECK-NEXT: store [[A_T]]* null, [[A_T]]** [[TEMP2]]
  // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[TEMP2]])
  // CHECK-NEXT: [[T0:%.*]] = load [[A_T]]*, [[A_T]]** [[TEMP2]]
  // CHECK-NEXT: [[T1:%.*]] = bitcast [[A_T]]* [[T0]] to i8*
  // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T1]])
  // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[A_T]]*
  // CHECK-NEXT: [[T4:%.*]] = load [[A_T]]*, [[A_T]]** [[A]]
  // CHECK-NEXT: store [[A_T]]* [[T3]], [[A_T]]** [[A]]
  // CHECK-NEXT: [[T5:%.*]] = bitcast [[A_T]]* [[T4]] to i8*
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T5]])

  // CHECK-NEXT: load
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: llvm.objc.release
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: call void @llvm.lifetime.end
  // CHECK-NEXT: load
  // CHECK-NEXT: bitcast
  // CHECK-NEXT: llvm.objc.release
  // CHECK-NEXT: ret void
}


// CHECK-LABEL: define void @test36
void test36(id x) {
  // CHECK: [[X:%.*]] = alloca i8*

  // CHECK: call i8* @llvm.objc.retain
  // CHECK: call i8* @llvm.objc.retain
  // CHECK: call i8* @llvm.objc.retain
  id array[3] = { @"A", x, @"y" };

  // CHECK:      [[T0:%.*]] = load i8*, i8** [[X]]
  // CHECK-NEXT: store i8* null, i8** [[X]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
  x = 0;

  // CHECK: br label
  // CHECK: call void @llvm.objc.release
  // CHECK: br i1

  // CHECK: call void @llvm.objc.release
  // CHECK-NEXT: ret void
}

@class Test37;
void test37(void) {
  extern void test37_helper(id *);
  Test37 *var;
  test37_helper(&var);

  // CHECK-LABEL:    define void @test37()
  // CHECK:      [[VAR:%.*]] = alloca [[TEST37:%.*]]*,
  // CHECK-NEXT: [[TEMP:%.*]] = alloca i8*
  // CHECK-NEXT: [[VARPTR1:%.*]] = bitcast [[TEST37]]** [[VAR]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[VARPTR1]])
  // CHECK-NEXT: store [[TEST37]]* null, [[TEST37]]** [[VAR]]

  // CHECK-NEXT: [[W0:%.*]] = load [[TEST37]]*, [[TEST37]]** [[VAR]]
  // CHECK-NEXT: [[W1:%.*]] = bitcast [[TEST37]]* [[W0]] to i8*
  // CHECK-NEXT: store i8* [[W1]], i8** [[TEMP]]
  // CHECK-NEXT: call void @test37_helper(i8** [[TEMP]])
  // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[TEMP]]
  // CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[TEST37]]*
  // CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST37]]* [[T1]] to i8*
  // CHECK-NEXT: [[T3:%.*]] = call i8* @llvm.objc.retain(i8* [[T2]])
  // CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to [[TEST37]]*
  // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use(i8* [[W1]]) [[NUW]]
  // CHECK-NEXT: [[T5:%.*]] = load [[TEST37]]*, [[TEST37]]** [[VAR]]
  // CHECK-NEXT: store [[TEST37]]* [[T4]], [[TEST37]]** [[VAR]]
  // CHECK-NEXT: [[T6:%.*]] = bitcast [[TEST37]]* [[T5]] to i8*
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T6]])

  // CHECK-NEXT: [[T0:%.*]] = load [[TEST37]]*, [[TEST37]]** [[VAR]]
  // CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST37]]* [[T0]] to i8*
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
  // CHECK-NEXT: [[VARPTR2:%.*]] = bitcast [[TEST37]]** [[VAR]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[VARPTR2]])
  // CHECK-NEXT: ret void
}

@interface Test43 @end
@implementation Test43
- (id) test __attribute__((ns_returns_retained)) {
  extern id test43_produce(void);
  return test43_produce();
  // CHECK:      call i8* @test43_produce()
  // CHECK-NEXT: notail call i8* @llvm.objc.retainAutoreleasedReturnValue(
  // CHECK-NEXT: ret 
}
@end

@interface Test45
@property (retain) id x;
@end
@implementation Test45
@synthesize x;
@end
// CHECK:    define internal i8* @"\01-[Test45 x]"(
// CHECK:      [[CALL:%.*]] = tail call i8* @objc_getProperty(
// CHECK-NEXT: ret i8* [[CALL]]

// rdar://problem/9315552
void test46(__weak id *wp, __weak volatile id *wvp) {
  extern id test46_helper(void);

  // TODO: this is sub-optimal, we should retain at the actual call site.

  // CHECK:      [[T0:%.*]] = call i8* @test46_helper()
  // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]])
  // CHECK-NEXT: [[T2:%.*]] = load i8**, i8*** {{%.*}}, align 8
  // CHECK-NEXT: [[T3:%.*]] = call i8* @llvm.objc.storeWeak(i8** [[T2]], i8* [[T1]])
  // CHECK-NEXT: [[T4:%.*]] = call i8* @llvm.objc.retain(i8* [[T3]])
  // CHECK-NEXT: store i8* [[T4]], i8**
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
  id x = *wp = test46_helper();

  // CHECK:      [[T0:%.*]] = call i8* @test46_helper()
  // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]])
  // CHECK-NEXT: [[T2:%.*]] = load i8**, i8*** {{%.*}}, align 8
  // CHECK-NEXT: [[T3:%.*]] = call i8* @llvm.objc.storeWeak(i8** [[T2]], i8* [[T1]])
  // CHECK-NEXT: [[T4:%.*]] = call i8* @llvm.objc.retain(i8* [[T3]])
  // CHECK-NEXT: store i8* [[T4]], i8**
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
  id y = *wvp = test46_helper();
}

// rdar://problem/9378887
void test47(void) {
  extern id test47_helper(void);
  id x = x = test47_helper();

  // CHECK-LABEL:    define void @test47()
  // CHECK:      [[X:%.*]] = alloca i8*
  // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]])
  // CHECK-NEXT: store i8* null, i8** [[X]]
  // CHECK-NEXT: [[CALL:%.*]] = call i8* @test47_helper()
  // CHECK-NEXT: [[T0:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[CALL]])
  // CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[X]]
  // CHECK-NEXT: store i8* [[T0]], i8** [[X]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
  // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]])
  // CHECK-NEXT: [[T3:%.*]] = load i8*, i8** [[X]]
  // CHECK-NEXT: store i8* [[T2]], i8** [[X]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T3]])
  // CHECK-NEXT: [[T4:%.*]] = load i8*, i8** [[X]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T4]])
  // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]])
  // CHECK-NEXT: ret void
}

void test48(void) {
  extern id test48_helper(void);
  __weak id x = x = test48_helper();
  // CHECK-LABEL:    define void @test48()
  // CHECK:      [[X:%.*]] = alloca i8*
  // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]])
  // CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.objc.initWeak(i8** [[X]], i8* null)
  // CHECK-NEXT: [[T1:%.*]] = call i8* @test48_helper()
  // CHECK-NEXT: [[T2:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T1]])
  // CHECK-NEXT: [[T3:%.*]] = call i8* @llvm.objc.storeWeak(i8** [[X]], i8* [[T2]])
  // CHECK-NEXT: [[T4:%.*]] = call i8* @llvm.objc.storeWeak(i8** [[X]], i8* [[T3]])
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T2]])
  // CHECK-NEXT: call void @llvm.objc.destroyWeak(i8** [[X]])
  // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]])
  // CHECK-NEXT: ret void
}

void test49(void) {
  extern id test49_helper(void);
  __autoreleasing id x = x = test49_helper();
  // CHECK-LABEL:    define void @test49()
  // CHECK:      [[X:%.*]] = alloca i8*
  // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]])
  // CHECK-NEXT: store i8* null, i8** [[X]]
  // CHECK-NEXT: [[CALL:%.*]] = call i8* @test49_helper()
  // CHECK-NEXT: [[T0:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[CALL]])
  // CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.autorelease(i8* [[T0]])
  // CHECK-NEXT: store i8* [[T2]], i8** [[X]]
  // CHECK-NEXT: [[T3:%.*]] = call i8* @llvm.objc.retainAutorelease(i8* [[T1]])
  // CHECK-NEXT: store i8* [[T3]], i8** [[X]]
  // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]])
  // CHECK-NEXT: ret void
}

// rdar://9380136
id x();
void test50(id y) {
  ({x();});
// CHECK: [[T0:%.*]] = call i8* @llvm.objc.retain
// CHECK: call void @llvm.objc.release
}


// rdar://9400762
struct CGPoint {
  float x;
  float y;
};
typedef struct CGPoint CGPoint;

@interface Foo
@property (assign) CGPoint point;
@end

@implementation Foo
@synthesize point;
@end

// rdar://problem/9400398
id test52(void) {
  id test52_helper(int) __attribute__((ns_returns_retained));
  return ({ int x = 5; test52_helper(x); });

// CHECK-LABEL:    define i8* @test52()
// CHECK:      [[X:%.*]] = alloca i32
// CHECK-NEXT: [[TMPALLOCA:%.*]] = alloca i8*
// CHECK-NEXT: [[XPTR1:%.*]] = bitcast i32* [[X]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 4, i8* [[XPTR1]])
// CHECK-NEXT: store i32 5, i32* [[X]],
// CHECK-NEXT: [[T0:%.*]] = load i32, i32* [[X]],
// CHECK-NEXT: [[T1:%.*]] = call i8* @test52_helper(i32 [[T0]])
// CHECK-NEXT: store i8* [[T1]], i8** [[TMPALLOCA]]
// CHECK-NEXT: [[XPTR2:%.*]] = bitcast i32* [[X]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 4, i8* [[XPTR2]])
// CHECK-NEXT: [[T2:%.*]] = load i8*, i8** [[TMPALLOCA]]
// CHECK-NEXT: [[T3:%.*]] = tail call i8* @llvm.objc.autoreleaseReturnValue(i8* [[T2]])
// CHECK-NEXT: ret i8* [[T3]]
}

// rdar://problem/9400644
void test53(void) {
  id test53_helper(void);
  id x = ({ id y = test53_helper(); y; });
  (void) x;
// CHECK-LABEL:    define void @test53()
// CHECK:      [[X:%.*]] = alloca i8*,
// CHECK-NEXT: [[Y:%.*]] = alloca i8*,
// CHECK-NEXT: [[TMPALLOCA:%.*]] = alloca i8*,
// CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]])
// CHECK-NEXT: [[YPTR1:%.*]] = bitcast i8** [[Y]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[YPTR1]])
// CHECK-NEXT: [[T0:%.*]] = call i8* @test53_helper()
// CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: store i8* [[T1]], i8** [[Y]],
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]],
// CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]])
// CHECK-NEXT: store i8* [[T1]], i8** [[TMPALLOCA]]
// CHECK-NEXT: [[T2:%.*]] = load i8*, i8** [[Y]]
// CHECK-NEXT: call void @llvm.objc.release(i8* [[T2]])
// CHECK-NEXT: [[YPTR2:%.*]] = bitcast i8** [[Y]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[YPTR2]])
// CHECK-NEXT: [[T3:%.*]] = load i8*, i8** [[TMPALLOCA]]
// CHECK-NEXT: store i8* [[T3]], i8** [[X]],
// CHECK-NEXT: load i8*, i8** [[X]],
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]]
// CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
// CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]])
// CHECK-NEXT: ret void
}

// <rdar://problem/9758798>
// CHECK-LABEL: define void @test54(i32 %first, ...)
void test54(int first, ...) {
  __builtin_va_list arglist;
  // CHECK: call void @llvm.va_start
  __builtin_va_start(arglist, first);
  // CHECK: call i8* @llvm.objc.retain
  id obj = __builtin_va_arg(arglist, id);
  // CHECK: call void @llvm.va_end
  __builtin_va_end(arglist);
  // CHECK: call void @llvm.objc.release
  // CHECK: ret void
}

// PR10228
@interface Test55Base @end
@interface Test55 : Test55Base @end
@implementation Test55 (Category)
- (void) dealloc {}
@end
// CHECK:   define internal void @"\01-[Test55(Category) dealloc]"(
// CHECK-NOT: ret
// CHECK:     call void bitcast (i8* ({{%.*}}*, i8*, ...)* @objc_msgSendSuper2 to void ({{%.*}}*, i8*)*)(

// rdar://problem/8024350
@protocol Test56Protocol
+ (id) make __attribute__((ns_returns_retained));
@end
@interface Test56<Test56Protocol> @end
@implementation Test56
// CHECK: define internal i8* @"\01+[Test56 make]"(
+ (id) make {
  extern id test56_helper(void);
  // CHECK:      [[T0:%.*]] = call i8* @test56_helper()
  // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]])
  // CHECK-NEXT: ret i8* [[T1]]
  return test56_helper();
}
@end
void test56_test(void) {
  id x = [Test56 make];
  // CHECK-LABEL: define void @test56_test()
  // CHECK:      [[X:%.*]] = alloca i8*, align 8
  // CHECK-NEXT: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]])
  // CHECK:      [[T0:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*)*)(
  // CHECK-NEXT: store i8* [[T0]], i8** [[X]]
  // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
  // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]])
  // CHECK-NEXT: ret void
}

// rdar://problem/9784964
@interface Test57
@property (nonatomic, strong) id strong;
@property (nonatomic, weak) id weak;
@property (nonatomic, unsafe_unretained) id unsafe;
@end
@implementation Test57
@synthesize strong, weak, unsafe;
@end
// CHECK: define internal i8* @"\01-[Test57 strong]"(
// CHECK:      [[T0:%.*]] = load [[TEST57:%.*]]*, [[TEST57:%.*]]** {{%.*}}
// CHECK-NEXT: [[T1:%.*]] = load i64, i64* @"OBJC_IVAR_$_Test57.strong"
// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST57]]* [[T0]] to i8*
// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8, i8* [[T2]], i64 [[T1]]
// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
// CHECK-NEXT: [[T5:%.*]] = load i8*, i8** [[T4]]
// CHECK-NEXT: ret i8* [[T5]]

// CHECK: define internal i8* @"\01-[Test57 weak]"(
// CHECK:      [[T0:%.*]] = load [[TEST57]]*, [[TEST57]]** {{%.*}}
// CHECK-NEXT: [[T1:%.*]] = load i64, i64* @"OBJC_IVAR_$_Test57.weak"
// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST57]]* [[T0]] to i8*
// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8, i8* [[T2]], i64 [[T1]]
// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
// CHECK-NEXT: [[T5:%.*]] = call i8* @llvm.objc.loadWeakRetained(i8** [[T4]])
// CHECK-NEXT: [[T6:%.*]] = tail call i8* @llvm.objc.autoreleaseReturnValue(i8* [[T5]])
// CHECK-NEXT: ret i8* [[T6]]

// CHECK: define internal i8* @"\01-[Test57 unsafe]"(
// CHECK:      [[T0:%.*]] = load [[TEST57]]*, [[TEST57]]** {{%.*}}
// CHECK-NEXT: [[T1:%.*]] = load i64, i64* @"OBJC_IVAR_$_Test57.unsafe"
// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST57]]* [[T0]] to i8*
// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8, i8* [[T2]], i64 [[T1]]
// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
// CHECK-NEXT: [[T5:%.*]] = load i8*, i8** [[T4]]
// CHECK-NEXT: ret i8* [[T5]]

// rdar://problem/9842343
void test59(void) {
  extern id test59_getlock(void);
  extern void test59_body(void);
  @synchronized (test59_getlock()) {
    test59_body();
  }

  // CHECK-LABEL:    define void @test59()
  // CHECK:      [[T0:%.*]] = call i8* @test59_getlock()
  // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]])
  // CHECK-NEXT: call i32 @objc_sync_enter(i8* [[T1]])
  // CHECK-NEXT: call void @test59_body()
  // CHECK-NEXT: call i32 @objc_sync_exit(i8* [[T1]])
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
  // CHECK-NEXT: ret void
}

// Verify that we don't try to reclaim the result of performSelector.
// rdar://problem/9887545
@interface Test61
- (id) performSelector: (SEL) selector;
- (void) test61_void;
- (id) test61_id;
@end
void test61(void) {
  // CHECK-LABEL:    define void @test61()
  // CHECK:      [[Y:%.*]] = alloca i8*, align 8

  extern id test61_make(void);

  // CHECK-NEXT: [[T0:%.*]] = call i8* @test61_make()
  // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]])
  // CHECK-NEXT: [[T2:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: [[T3:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: [[T4:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i8*)*)(i8* [[T1]], i8* [[T3]], i8* [[T2]])
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
  [test61_make() performSelector: @selector(test61_void)];

  // CHECK-NEXT: [[YPTR1:%.*]] = bitcast i8** [[Y]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[YPTR1]])
  // CHECK-NEXT: [[T0:%.*]] = call i8* @test61_make()
  // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]])
  // CHECK-NEXT: [[T2:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: [[T3:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_
  // CHECK-NEXT: [[T4:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i8*)*)(i8* [[T1]], i8* [[T3]], i8* [[T2]])
  // CHECK-NEXT: [[T5:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T4]])
  // CHECK-NEXT: store i8* [[T5]], i8** [[Y]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
  id y = [test61_make() performSelector: @selector(test61_id)];

  // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]]
  // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
  // CHECK-NEXT: [[YPTR2:%.*]] = bitcast i8** [[Y]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[YPTR2]])
  // CHECK-NEXT: ret void
}

// rdar://problem/9891815
void test62(void) {
  // CHECK-LABEL:    define void @test62()
  // CHECK:      [[I:%.*]] = alloca i32, align 4
  // CHECK-NEXT: [[CLEANUP_VALUE:%.*]] = alloca i8*
  // CHECK-NEXT: [[CLEANUP_REQUIRED:%.*]] = alloca i1
  extern id test62_make(void);
  extern void test62_body(void);

  // CHECK-NEXT: [[IPTR:%.*]] = bitcast i32* [[I]] to i8*
  // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 4, i8* [[IPTR]])
  // CHECK-NEXT: store i32 0, i32* [[I]], align 4
  // CHECK-NEXT: br label

  // CHECK:      [[T0:%.*]] = load i32, i32* [[I]], align 4
  // CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 20
  // CHECK-NEXT: br i1 [[T1]],

  for (unsigned i = 0; i != 20; ++i) {
    // CHECK:      [[T0:%.*]] = load i32, i32* [[I]], align 4
    // CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0
    // CHECK-NEXT: store i1 false, i1* [[CLEANUP_REQUIRED]]
    // CHECK-NEXT: br i1 [[T1]],
    // CHECK:      [[T0:%.*]] = call i8* @test62_make()
    // CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]])
    // CHECK-NEXT: store i8* [[T1]], i8** [[CLEANUP_VALUE]]
    // CHECK-NEXT: store i1 true, i1* [[CLEANUP_REQUIRED]]
    // CHECK-NEXT: [[T2:%.*]] = icmp ne i8* [[T1]], null
    // CHECK-NEXT: br label
    // CHECK:      [[COND:%.*]] = phi i1 [ false, {{%.*}} ], [ [[T2]], {{%.*}} ]
    // CHECK-NEXT: [[T0:%.*]] = load i1, i1* [[CLEANUP_REQUIRED]]
    // CHECK-NEXT: br i1 [[T0]],
    // CHECK:      [[T0:%.*]] = load i8*, i8** [[CLEANUP_VALUE]]
    // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
    // CHECK-NEXT: br label
    // CHECK:      br i1 [[COND]]
    // CHECK:      call void @test62_body()
    // CHECK-NEXT: br label
    // CHECK:      br label
    if (i != 0 && test62_make() != 0)
      test62_body();
  }

  // CHECK:      [[T0:%.*]] = load i32, i32* [[I]], align 4
  // CHECK-NEXT: [[T1:%.*]] = add i32 [[T0]], 1
  // CHECK-NEXT: store i32 [[T1]], i32* [[I]]
  // CHECK-NEXT: br label

  // CHECK:      ret void
}

// rdar://9971982
@class NSString;

@interface Person  {
  NSString *name;
}
@property NSString *address;
@end

@implementation Person
@synthesize address;
@end
// CHECK: tail call i8* @objc_getProperty
// CHECK: call void @objc_setProperty 

// Verify that we successfully parse and preserve this attribute in
// this position.
@interface Test66
- (void) consume: (id __attribute__((ns_consumed))) ptr;
@end
void test66(void) {
  extern Test66 *test66_receiver(void);
  extern id test66_arg(void);
  [test66_receiver() consume: test66_arg()];
}
// CHECK-LABEL:    define void @test66()
// CHECK:      [[T0:%.*]] = call [[TEST66:%.*]]* @test66_receiver()
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST66]]* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST66]]*
// CHECK-NEXT: [[T4:%.*]] = call i8* @test66_arg()
// CHECK-NEXT: [[T5:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T4]])
// CHECK-NEXT: [[T6:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES
// CHECK-NEXT: [[T7:%.*]] = bitcast [[TEST66]]* [[T3]] to i8*
// CHECK-NEXT: [[SIX:%.*]] = icmp eq i8* [[T7]], null
// CHECK-NEXT: br i1 [[SIX]], label [[NULINIT:%.*]], label [[CALL:%.*]]
// CHECK: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, i8*)*)(i8* [[T7]], i8* [[T6]], i8* [[T5]])
// CHECK-NEXT: br label [[CONT:%.*]]
// CHECK: call void @llvm.objc.release(i8* [[T5]]) [[NUW]]
// CHECK-NEXT: br label [[CONT:%.*]]
// CHECK: [[T8:%.*]] = bitcast [[TEST66]]* [[T3]] to i8*
// CHECK-NEXT: call void @llvm.objc.release(i8* [[T8]])
// CHECK-NEXT: ret void

// rdar://problem/9953540
Class test67_helper(void);
void test67(void) {
  Class cl = test67_helper();
}
// CHECK-LABEL:    define void @test67()
// CHECK:      [[CL:%.*]] = alloca i8*, align 8
// CHECK-NEXT: [[CLPTR1:%.*]] = bitcast i8** [[CL]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[CLPTR1]])
// CHECK-NEXT: [[T0:%.*]] = call i8* @test67_helper()
// CHECK-NEXT: store i8* [[T0]], i8** [[CL]], align 8
// CHECK-NEXT: [[CLPTR2:%.*]] = bitcast i8** [[CL]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[CLPTR2]])
// CHECK-NEXT: ret void

Class test68_helper(void);
void test68(void) {
  __strong Class cl = test67_helper();
}
// CHECK-LABEL:    define void @test68()
// CHECK:      [[CL:%.*]] = alloca i8*, align 8
// CHECK-NEXT: [[CLPTR1:%.*]] = bitcast i8** [[CL]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[CLPTR1]])
// CHECK-NEXT: [[T0:%.*]] = call i8* @test67_helper()
// CHECK-NEXT: [[T1:%.*]] = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: store i8* [[T1]], i8** [[CL]], align 8
// CHECK-NEXT: [[T2:%.*]] = load i8*, i8** [[CL]]
// CHECK-NEXT: call void @llvm.objc.release(i8* [[T2]])
// CHECK-NEXT: [[CLPTR2:%.*]] = bitcast i8** [[CL]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[CLPTR2]])
// CHECK-NEXT: ret void

// rdar://problem/10564852
@interface Test69 @end
@implementation Test69
- (id) foo { return self; }
@end
// CHECK: define internal i8* @"\01-[Test69 foo]"(
// CHECK:      [[SELF:%.*]] = alloca [[TEST69:%.*]]*, align 8
// CHECK:      [[T0:%.*]] = load [[TEST69]]*, [[TEST69]]** [[SELF]], align 8
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST69]]* [[T0]] to i8*
// CHECK-NEXT: ret i8* [[T1]]

// rdar://problem/10907547
void test70(id i) {
  // CHECK-LABEL: define void @test70
  // CHECK: store i8* null, i8**
  // CHECK: store i8* null, i8**
  // CHECK: [[ID:%.*]] = call i8* @llvm.objc.retain(i8*
  // CHECK: store i8* [[ID]], i8**
  id x[3] = {
    [2] = i
  };
}

// Be sure that we emit lifetime intrinsics only after dtors
struct AggDtor {
  char cs[40];
  id x;
};

struct AggDtor getAggDtor(void);

// CHECK-LABEL: define void @test71
void test71(void) {
  // CHECK: %[[T:[^ ]+]] = bitcast %struct.AggDtor* %[[TMP1:[^ ]+]] to i8*
  // CHECK: call void @llvm.lifetime.start.p0i8({{[^,]+}}, i8* %[[T]])
  // CHECK: call void @getAggDtor(%struct.AggDtor* sret align 8 %[[TMP1]])
  // CHECK: %[[T:[^ ]+]] = bitcast %struct.AggDtor* %[[TMP1]] to i8**
  // CHECK: call void @__destructor_8_s40(i8** %[[T]])
  // CHECK: %[[T:[^ ]+]] = bitcast %struct.AggDtor* %[[TMP1:[^ ]+]] to i8*
  // CHECK: call void @llvm.lifetime.end.p0i8({{[^,]+}}, i8* %[[T]])
  // CHECK: %[[T:[^ ]+]] = bitcast %struct.AggDtor* %[[TMP2:[^ ]+]] to i8*
  // CHECK: call void @llvm.lifetime.start.p0i8({{[^,]+}}, i8* %[[T]])
  // CHECK: call void @getAggDtor(%struct.AggDtor* sret align 8 %[[TMP2]])
  // CHECK: %[[T:[^ ]+]] = bitcast %struct.AggDtor* %[[TMP2]] to i8**
  // CHECK: call void @__destructor_8_s40(i8** %[[T]])
  // CHECK: %[[T:[^ ]+]] = bitcast %struct.AggDtor* %[[TMP2:[^ ]+]] to i8*
  // CHECK: call void @llvm.lifetime.end.p0i8({{[^,]+}}, i8* %[[T]])
  getAggDtor();
  getAggDtor();
}

// Check that no extra release calls are emitted to detruct the compond literal.

// CHECK: define void @test72(i8* %[[A:.*]], i8* %[[B:.*]])
// CHECK: %[[A_ADDR:.*]] = alloca i8*, align 8
// CHECK: %[[B_ADDR:.*]] = alloca i8*, align 8
// CHECK: %[[T:.*]] = alloca [2 x i8*], align 16
// CHECK: %[[V0:.*]] = call i8* @llvm.objc.retain(i8* %[[A]])
// CHECK: %[[V1:.*]] = call i8* @llvm.objc.retain(i8* %[[B]]) #2
// CHECK: %[[ARRAYINIT_BEGIN:.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* %[[T]], i64 0, i64 0
// CHECK: %[[V3:.*]] = load i8*, i8** %[[A_ADDR]], align 8, !tbaa !7
// CHECK: %[[V4:.*]] = call i8* @llvm.objc.retain(i8* %[[V3]]) #2
// CHECK: store i8* %[[V4]], i8** %[[ARRAYINIT_BEGIN]], align 8, !tbaa !7
// CHECK: %[[ARRAYINIT_ELEMENT:.*]] = getelementptr inbounds i8*, i8** %[[ARRAYINIT_BEGIN]], i64 1
// CHECK: %[[V5:.*]] = load i8*, i8** %[[B_ADDR]], align 8, !tbaa !7
// CHECK: %[[V6:.*]] = call i8* @llvm.objc.retain(i8* %[[V5]]) #2
// CHECK: store i8* %[[V6]], i8** %[[ARRAYINIT_ELEMENT]], align 8, !tbaa !7
// CHECK: %[[ARRAY_BEGIN:.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* %[[T]], i32 0, i32 0
// CHECK: %[[V7:.*]] = getelementptr inbounds i8*, i8** %[[ARRAY_BEGIN]], i64 2

// CHECK-NOT: call void @llvm.objc.release

// CHECK: %[[ARRAYDESTROY_ELEMENTPAST:.*]] = phi i8** [ %[[V7]], %{{.*}} ], [ %[[ARRAYDESTROY_ELEMENT:.*]], %{{.*}} ]
// CHECK: %[[ARRAYDESTROY_ELEMENT]] = getelementptr inbounds i8*, i8** %[[ARRAYDESTROY_ELEMENTPAST]], i64 -1
// CHECK: %[[V8:.*]] = load i8*, i8** %[[ARRAYDESTROY_ELEMENT]], align 8
// CHECK: call void @llvm.objc.release(i8* %[[V8]]) #2, !clang.imprecise_release !10

// CHECK-NOT: call void @llvm.objc.release

// CHECK: %[[V10:.*]] = load i8*, i8** %[[B_ADDR]], align 8
// CHECK: call void @llvm.objc.release(i8* %[[V10]]) #2, !clang.imprecise_release !10
// CHECK: %[[V11:.*]] = load i8*, i8** %[[A_ADDR]], align 8
// CHECK: call void @llvm.objc.release(i8* %[[V11]]) #2, !clang.imprecise_release !10

void test72(id a, id b) {
  __strong id t[] = (__strong id[]){a, b};
}

// ARC-ALIEN: attributes [[NLB]] = { nonlazybind }
// ARC-NATIVE: attributes [[NLB]] = { nonlazybind }
// CHECK: attributes [[NUW]] = { nounwind }