clang/test/Analysis/cxx-uninitialized-object-inheritance.cpp

   1 // RUN: %clang_analyze_cc1 -analyzer-checker=core,optin.cplusplus.UninitializedObject \
   2 // RUN: -analyzer-config optin.cplusplus.UninitializedObject:Pedantic=true -DPEDANTIC \
   3 // RUN: -analyzer-config optin.cplusplus.UninitializedObject:CheckPointeeInitialization=true \
   4 // RUN: -std=c++11 -verify  %s
   5
   6 //===----------------------------------------------------------------------===//
   7 // Non-polymorphic inheritance tests
   8 //===----------------------------------------------------------------------===//
   9
  10 class NonPolymorphicLeft1 {
  11   int x;
  12
  13 protected:
  14   int y;
  15
  16 public:
  17   NonPolymorphicLeft1() = default;
  18   NonPolymorphicLeft1(int) : x(1) {}
  19 };
  20
  21 class NonPolymorphicInheritanceTest1 : public NonPolymorphicLeft1 {
  22   int z;
  23
  24 public:
  25   NonPolymorphicInheritanceTest1()
  26       : NonPolymorphicLeft1(int{}) {
  27     y = 2;
  28     z = 3;
  29     // All good!
  30   }
  31 };
  32
  33 void fNonPolymorphicInheritanceTest1() {
  34   NonPolymorphicInheritanceTest1();
  35 }
  36
  37 class NonPolymorphicBaseClass2 {
  38   int x; // expected-note{{uninitialized field 'this->NonPolymorphicBaseClass2::x'}}
  39 protected:
  40   int y;
  41
  42 public:
  43   NonPolymorphicBaseClass2() = default;
  44   NonPolymorphicBaseClass2(int) : x(4) {}
  45 };
  46
  47 class NonPolymorphicInheritanceTest2 : public NonPolymorphicBaseClass2 {
  48   int z;
  49
  50 public:
  51   NonPolymorphicInheritanceTest2() {
  52     y = 5;
  53     z = 6; // expected-warning{{1 uninitialized field}}
  54   }
  55 };
  56
  57 void fNonPolymorphicInheritanceTest2() {
  58   NonPolymorphicInheritanceTest2();
  59 }
  60
  61 class NonPolymorphicBaseClass3 {
  62   int x;
  63
  64 protected:
  65   int y; // expected-note{{uninitialized field 'this->NonPolymorphicBaseClass3::y'}}
  66 public:
  67   NonPolymorphicBaseClass3() = default;
  68   NonPolymorphicBaseClass3(int) : x(7) {}
  69 };
  70
  71 class NonPolymorphicInheritanceTest3 : public NonPolymorphicBaseClass3 {
  72   int z;
  73
  74 public:
  75   NonPolymorphicInheritanceTest3()
  76       : NonPolymorphicBaseClass3(int{}) {
  77     z = 8; // expected-warning{{1 uninitialized field}}
  78   }
  79 };
  80
  81 void fNonPolymorphicInheritanceTest3() {
  82   NonPolymorphicInheritanceTest3();
  83 }
  84
  85 class NonPolymorphicBaseClass4 {
  86   int x;
  87
  88 protected:
  89   int y;
  90
  91 public:
  92   NonPolymorphicBaseClass4() = default;
  93   NonPolymorphicBaseClass4(int) : x(9) {}
  94 };
  95
  96 class NonPolymorphicInheritanceTest4 : public NonPolymorphicBaseClass4 {
  97   int z; // expected-note{{uninitialized field 'this->z'}}
  98
  99 public:
 100   NonPolymorphicInheritanceTest4()
 101       : NonPolymorphicBaseClass4(int{}) {
 102     y = 10; // expected-warning{{1 uninitialized field}}
 103   }
 104 };
 105
 106 void fNonPolymorphicInheritanceTest4() {
 107   NonPolymorphicInheritanceTest4();
 108 }
 109
 110 //===----------------------------------------------------------------------===//
 111 // Polymorphic inheritance tests
 112 //===----------------------------------------------------------------------===//
 113
 114 class PolymorphicLeft1 {
 115   int x;
 116
 117 protected:
 118   int y;
 119
 120 public:
 121   virtual ~PolymorphicLeft1() = default;
 122   PolymorphicLeft1() = default;
 123   PolymorphicLeft1(int) : x(11) {}
 124 };
 125
 126 class PolymorphicInheritanceTest1 : public PolymorphicLeft1 {
 127   int z;
 128
 129 public:
 130   PolymorphicInheritanceTest1()
 131       : PolymorphicLeft1(int{}) {
 132     y = 12;
 133     z = 13;
 134     // All good!
 135   }
 136 };
 137
 138 void fPolymorphicInheritanceTest1() {
 139   PolymorphicInheritanceTest1();
 140 }
 141
 142 class PolymorphicRight1 {
 143   int x; // expected-note{{uninitialized field 'this->PolymorphicRight1::x'}}
 144 protected:
 145   int y;
 146
 147 public:
 148   virtual ~PolymorphicRight1() = default;
 149   PolymorphicRight1() = default;
 150   PolymorphicRight1(int) : x(14) {}
 151 };
 152
 153 class PolymorphicInheritanceTest2 : public PolymorphicRight1 {
 154   int z;
 155
 156 public:
 157   PolymorphicInheritanceTest2() {
 158     y = 15;
 159     z = 16; // expected-warning{{1 uninitialized field}}
 160   }
 161 };
 162
 163 void fPolymorphicInheritanceTest2() {
 164   PolymorphicInheritanceTest2();
 165 }
 166
 167 class PolymorphicBaseClass3 {
 168   int x;
 169
 170 protected:
 171   int y; // expected-note{{uninitialized field 'this->PolymorphicBaseClass3::y'}}
 172 public:
 173   virtual ~PolymorphicBaseClass3() = default;
 174   PolymorphicBaseClass3() = default;
 175   PolymorphicBaseClass3(int) : x(17) {}
 176 };
 177
 178 class PolymorphicInheritanceTest3 : public PolymorphicBaseClass3 {
 179   int z;
 180
 181 public:
 182   PolymorphicInheritanceTest3()
 183       : PolymorphicBaseClass3(int{}) {
 184     z = 18; // expected-warning{{1 uninitialized field}}
 185   }
 186 };
 187
 188 void fPolymorphicInheritanceTest3() {
 189   PolymorphicInheritanceTest3();
 190 }
 191
 192 class PolymorphicBaseClass4 {
 193   int x;
 194
 195 protected:
 196   int y;
 197
 198 public:
 199   virtual ~PolymorphicBaseClass4() = default;
 200   PolymorphicBaseClass4() = default;
 201   PolymorphicBaseClass4(int) : x(19) {}
 202 };
 203
 204 class PolymorphicInheritanceTest4 : public PolymorphicBaseClass4 {
 205   int z; // expected-note{{uninitialized field 'this->z'}}
 206
 207 public:
 208   PolymorphicInheritanceTest4()
 209       : PolymorphicBaseClass4(int{}) {
 210     y = 20; // expected-warning{{1 uninitialized field}}
 211   }
 212 };
 213
 214 void fPolymorphicInheritanceTest4() {
 215   PolymorphicInheritanceTest4();
 216 }
 217
 218 //===----------------------------------------------------------------------===//
 219 // Virtual inheritance tests
 220 //===----------------------------------------------------------------------===//
 221
 222 class VirtualPolymorphicLeft1 {
 223   int x;
 224
 225 protected:
 226   int y;
 227
 228 public:
 229   virtual ~VirtualPolymorphicLeft1() = default;
 230   VirtualPolymorphicLeft1() = default;
 231   VirtualPolymorphicLeft1(int) : x(21) {}
 232 };
 233
 234 class VirtualInheritanceTest1 : virtual public VirtualPolymorphicLeft1 {
 235   int z;
 236
 237 public:
 238   VirtualInheritanceTest1()
 239       : VirtualPolymorphicLeft1(int()) {
 240     y = 22;
 241     z = 23;
 242     // All good!
 243   }
 244 };
 245
 246 void fVirtualInheritanceTest1() {
 247   VirtualInheritanceTest1();
 248 }
 249
 250 class VirtualPolymorphicRight1 {
 251   int x; // expected-note{{uninitialized field 'this->VirtualPolymorphicRight1::x'}}
 252 protected:
 253   int y;
 254
 255 public:
 256   virtual ~VirtualPolymorphicRight1() = default;
 257   VirtualPolymorphicRight1() = default;
 258   VirtualPolymorphicRight1(int) : x(24) {}
 259 };
 260
 261 class VirtualInheritanceTest2 : virtual public VirtualPolymorphicRight1 {
 262   int z;
 263
 264 public:
 265   VirtualInheritanceTest2() {
 266     y = 25;
 267     z = 26; // expected-warning{{1 uninitialized field}}
 268   }
 269 };
 270
 271 void fVirtualInheritanceTest2() {
 272   VirtualInheritanceTest2();
 273 }
 274
 275 class VirtualPolymorphicBaseClass3 {
 276   int x;
 277
 278 protected:
 279   int y; // expected-note{{uninitialized field 'this->VirtualPolymorphicBaseClass3::y'}}
 280 public:
 281   virtual ~VirtualPolymorphicBaseClass3() = default;
 282   VirtualPolymorphicBaseClass3() = default;
 283   VirtualPolymorphicBaseClass3(int) : x(27) {}
 284 };
 285
 286 class VirtualInheritanceTest3 : virtual public VirtualPolymorphicBaseClass3 {
 287   int z;
 288
 289 public:
 290   VirtualInheritanceTest3()
 291       : VirtualPolymorphicBaseClass3(int{}) {
 292     z = 28; // expected-warning{{1 uninitialized field}}
 293   }
 294 };
 295
 296 void fVirtualInheritanceTest3() {
 297   VirtualInheritanceTest3();
 298 }
 299
 300 //===----------------------------------------------------------------------===//
 301 // Multiple inheritance tests
 302 //===----------------------------------------------------------------------===//
 303
 304 /*
 305         Left        Right
 306           \           /
 307            \         /
 308             \       /
 309      MultipleInheritanceTest
 310 */
 311
 312 struct Left1 {
 313   int x;
 314   Left1() = default;
 315   Left1(int) : x(29) {}
 316 };
 317 struct Right1 {
 318   int y;
 319   Right1() = default;
 320   Right1(int) : y(30) {}
 321 };
 322
 323 class MultipleInheritanceTest1 : public Left1, public Right1 {
 324   int z;
 325
 326 public:
 327   MultipleInheritanceTest1()
 328       : Left1(int{}),
 329         Right1(char{}) {
 330     z = 31;
 331     // All good!
 332   }
 333
 334   MultipleInheritanceTest1(int)
 335       : Left1(int{}) {
 336     y = 32;
 337     z = 33;
 338     // All good!
 339   }
 340
 341   MultipleInheritanceTest1(int, int)
 342       : Right1(char{}) {
 343     x = 34;
 344     z = 35;
 345     // All good!
 346   }
 347 };
 348
 349 void fMultipleInheritanceTest1() {
 350   MultipleInheritanceTest1();
 351   MultipleInheritanceTest1(int());
 352   MultipleInheritanceTest1(int(), int());
 353 }
 354
 355 struct Left2 {
 356   int x;
 357   Left2() = default;
 358   Left2(int) : x(36) {}
 359 };
 360 struct Right2 {
 361   int y; // expected-note{{uninitialized field 'this->Right2::y'}}
 362   Right2() = default;
 363   Right2(int) : y(37) {}
 364 };
 365
 366 class MultipleInheritanceTest2 : public Left2, public Right2 {
 367   int z;
 368
 369 public:
 370   MultipleInheritanceTest2()
 371       : Left2(int{}) {
 372     z = 38; // expected-warning{{1 uninitialized field}}
 373   }
 374 };
 375
 376 void fMultipleInheritanceTest2() {
 377   MultipleInheritanceTest2();
 378 }
 379
 380 struct Left3 {
 381   int x; // expected-note{{uninitialized field 'this->Left3::x'}}
 382   Left3() = default;
 383   Left3(int) : x(39) {}
 384 };
 385 struct Right3 {
 386   int y;
 387   Right3() = default;
 388   Right3(int) : y(40) {}
 389 };
 390
 391 class MultipleInheritanceTest3 : public Left3, public Right3 {
 392   int z;
 393
 394 public:
 395   MultipleInheritanceTest3()
 396       : Right3(char{}) {
 397     z = 41; // expected-warning{{1 uninitialized field}}
 398   }
 399 };
 400
 401 void fMultipleInheritanceTest3() {
 402   MultipleInheritanceTest3();
 403 }
 404
 405 struct Left4 {
 406   int x;
 407   Left4() = default;
 408   Left4(int) : x(42) {}
 409 };
 410 struct Right4 {
 411   int y;
 412   Right4() = default;
 413   Right4(int) : y(43) {}
 414 };
 415
 416 class MultipleInheritanceTest4 : public Left4, public Right4 {
 417   int z; // expected-note{{uninitialized field 'this->z'}}
 418
 419 public:
 420   MultipleInheritanceTest4()
 421       : Left4(int{}),
 422         Right4(char{}) { // expected-warning{{1 uninitialized field}}
 423   }
 424 };
 425
 426 void fMultipleInheritanceTest4() {
 427   MultipleInheritanceTest4();
 428 }
 429
 430 struct Left5 {
 431   int x;
 432   Left5() = default;
 433   Left5(int) : x(44) {}
 434 };
 435 struct Right5 {
 436   int y; // expected-note{{uninitialized field 'this->Right5::y'}}
 437   Right5() = default;
 438   Right5(int) : y(45) {}
 439 };
 440
 441 class MultipleInheritanceTest5 : public Left5, public Right5 {
 442   int z; // expected-note{{uninitialized field 'this->z'}}
 443
 444 public:
 445   MultipleInheritanceTest5() // expected-warning{{2 uninitialized fields}}
 446       : Left5(int{}) {
 447   }
 448 };
 449
 450 void fMultipleInheritanceTest5() {
 451   MultipleInheritanceTest5();
 452 }
 453
 454 //===----------------------------------------------------------------------===//
 455 // Non-virtual diamond inheritance tests
 456 //===----------------------------------------------------------------------===//
 457
 458 /*
 459   NonVirtualBase   NonVirtualBase
 460         |                |
 461         |                |
 462         |                |
 463      First              Second
 464         \                /
 465          \              /
 466           \            /
 467   NonVirtualDiamondInheritanceTest
 468 */
 469
 470 struct NonVirtualBase1 {
 471   int x;
 472   NonVirtualBase1() = default;
 473   NonVirtualBase1(int) : x(46) {}
 474 };
 475 struct First1 : public NonVirtualBase1 {
 476   First1() = default;
 477   First1(int) : NonVirtualBase1(int{}) {}
 478 };
 479 struct Second1 : public NonVirtualBase1 {
 480   Second1() = default;
 481   Second1(int) : NonVirtualBase1(int{}) {}
 482 };
 483
 484 class NonVirtualDiamondInheritanceTest1 : public First1, public Second1 {
 485   int z;
 486
 487 public:
 488   NonVirtualDiamondInheritanceTest1()
 489       : First1(int{}),
 490         Second1(int{}) {
 491     z = 47;
 492     // All good!
 493   }
 494
 495   NonVirtualDiamondInheritanceTest1(int)
 496       : First1(int{}) {
 497     Second1::x = 48;
 498     z = 49;
 499     // All good!
 500   }
 501
 502   NonVirtualDiamondInheritanceTest1(int, int)
 503       : Second1(int{}) {
 504     First1::x = 50;
 505     z = 51;
 506     // All good!
 507   }
 508 };
 509
 510 void fNonVirtualDiamondInheritanceTest1() {
 511   NonVirtualDiamondInheritanceTest1();
 512   NonVirtualDiamondInheritanceTest1(int());
 513   NonVirtualDiamondInheritanceTest1(int(), int());
 514 }
 515
 516 struct NonVirtualBase2 {
 517   int x; // expected-note{{uninitialized field 'this->NonVirtualBase2::x'}}
 518   NonVirtualBase2() = default;
 519   NonVirtualBase2(int) : x(52) {}
 520 };
 521 struct First2 : public NonVirtualBase2 {
 522   First2() = default;
 523   First2(int) : NonVirtualBase2(int{}) {}
 524 };
 525 struct Second2 : public NonVirtualBase2 {
 526   Second2() = default;
 527   Second2(int) : NonVirtualBase2(int{}) {}
 528 };
 529
 530 class NonVirtualDiamondInheritanceTest2 : public First2, public Second2 {
 531   int z;
 532
 533 public:
 534   NonVirtualDiamondInheritanceTest2()
 535       : First2(int{}) {
 536     z = 53; // expected-warning{{1 uninitialized field}}
 537   }
 538 };
 539
 540 void fNonVirtualDiamondInheritanceTest2() {
 541   NonVirtualDiamondInheritanceTest2();
 542 }
 543
 544 struct NonVirtualBase3 {
 545   int x; // expected-note{{uninitialized field 'this->NonVirtualBase3::x'}}
 546   NonVirtualBase3() = default;
 547   NonVirtualBase3(int) : x(54) {}
 548 };
 549 struct First3 : public NonVirtualBase3 {
 550   First3() = default;
 551   First3(int) : NonVirtualBase3(int{}) {}
 552 };
 553 struct Second3 : public NonVirtualBase3 {
 554   Second3() = default;
 555   Second3(int) : NonVirtualBase3(int{}) {}
 556 };
 557
 558 class NonVirtualDiamondInheritanceTest3 : public First3, public Second3 {
 559   int z;
 560
 561 public:
 562   NonVirtualDiamondInheritanceTest3()
 563       : Second3(int{}) {
 564     z = 55; // expected-warning{{1 uninitialized field}}
 565   }
 566 };
 567
 568 void fNonVirtualDiamondInheritanceTest3() {
 569   NonVirtualDiamondInheritanceTest3();
 570 }
 571
 572 struct NonVirtualBase4 {
 573   int x; // expected-note{{uninitialized field 'this->NonVirtualBase4::x'}}
 574   // expected-note@-1{{uninitialized field 'this->NonVirtualBase4::x'}}
 575   NonVirtualBase4() = default;
 576   NonVirtualBase4(int) : x(56) {}
 577 };
 578 struct First4 : public NonVirtualBase4 {
 579   First4() = default;
 580   First4(int) : NonVirtualBase4(int{}) {}
 581 };
 582 struct Second4 : public NonVirtualBase4 {
 583   Second4() = default;
 584   Second4(int) : NonVirtualBase4(int{}) {}
 585 };
 586
 587 class NonVirtualDiamondInheritanceTest4 : public First4, public Second4 {
 588   int z;
 589
 590 public:
 591   NonVirtualDiamondInheritanceTest4() {
 592     z = 57; // expected-warning{{2 uninitialized fields}}
 593   }
 594 };
 595
 596 void fNonVirtualDiamondInheritanceTest4() {
 597   NonVirtualDiamondInheritanceTest4();
 598 }
 599
 600 struct NonVirtualBase5 {
 601   int x;
 602   NonVirtualBase5() = default;
 603   NonVirtualBase5(int) : x(58) {}
 604 };
 605 struct First5 : public NonVirtualBase5 {
 606   First5() = default;
 607   First5(int) : NonVirtualBase5(int{}) {}
 608 };
 609 struct Second5 : public NonVirtualBase5 {
 610   Second5() = default;
 611   Second5(int) : NonVirtualBase5(int{}) {}
 612 };
 613
 614 class NonVirtualDiamondInheritanceTest5 : public First5, public Second5 {
 615   int z; // expected-note{{uninitialized field 'this->z'}}
 616
 617 public:
 618   NonVirtualDiamondInheritanceTest5()
 619       : First5(int{}),
 620         Second5(int{}) { // expected-warning{{1 uninitialized field}}
 621   }
 622 };
 623
 624 void fNonVirtualDiamondInheritanceTest5() {
 625   NonVirtualDiamondInheritanceTest5();
 626 }
 627
 628 struct NonVirtualBase6 {
 629   int x; // expected-note{{uninitialized field 'this->NonVirtualBase6::x'}}
 630   NonVirtualBase6() = default;
 631   NonVirtualBase6(int) : x(59) {}
 632 };
 633 struct First6 : public NonVirtualBase6 {
 634   First6() = default;
 635   First6(int) : NonVirtualBase6(int{}) {}
 636 };
 637 struct Second6 : public NonVirtualBase6 {
 638   Second6() = default;
 639   Second6(int) : NonVirtualBase6(int{}) {}
 640 };
 641
 642 class NonVirtualDiamondInheritanceTest6 : public First6, public Second6 {
 643   int z; // expected-note{{uninitialized field 'this->z'}}
 644
 645 public:
 646   NonVirtualDiamondInheritanceTest6() // expected-warning{{2 uninitialized fields}}
 647       : First6(int{}) {
 648     // 'z' and 'Second::x' unintialized
 649   }
 650 };
 651
 652 void fNonVirtualDiamondInheritanceTest6() {
 653   NonVirtualDiamondInheritanceTest6();
 654 }
 655
 656 //===----------------------------------------------------------------------===//
 657 // Virtual diamond inheritance tests
 658 //===----------------------------------------------------------------------===//
 659
 660 /*
 661            VirtualBase
 662             /       \
 663            /         \
 664           /           \
 665   VirtualFirst     VirtualSecond
 666           \           /
 667            \         /
 668             \       /
 669    VirtualDiamondInheritanceTest
 670 */
 671
 672 struct VirtualBase1 {
 673   int x;
 674   VirtualBase1() = default;
 675   VirtualBase1(int) : x(60) {}
 676 };
 677 struct VirtualFirst1 : virtual public VirtualBase1 {
 678   VirtualFirst1() = default;
 679   VirtualFirst1(int) : VirtualBase1(int{}) {}
 680   VirtualFirst1(int, int) { x = 61; }
 681 };
 682 struct VirtualSecond1 : virtual public VirtualBase1 {
 683   VirtualSecond1() = default;
 684   VirtualSecond1(int) : VirtualBase1(int{}) {}
 685   VirtualSecond1(int, int) { x = 62; }
 686 };
 687
 688 class VirtualDiamondInheritanceTest1 : public VirtualFirst1, public VirtualSecond1 {
 689
 690 public:
 691   VirtualDiamondInheritanceTest1() {
 692     x = 0;
 693     // All good!
 694   }
 695
 696   VirtualDiamondInheritanceTest1(int)
 697       : VirtualFirst1(int{}, int{}),
 698         VirtualSecond1(int{}, int{}) {
 699     // All good!
 700   }
 701
 702   VirtualDiamondInheritanceTest1(int, int)
 703       : VirtualFirst1(int{}, int{}) {
 704     // All good!
 705   }
 706 };
 707
 708 void fVirtualDiamondInheritanceTest1() {
 709   VirtualDiamondInheritanceTest1();
 710   VirtualDiamondInheritanceTest1(int());
 711   VirtualDiamondInheritanceTest1(int(), int());
 712 }
 713
 714 struct VirtualBase2 {
 715   int x; // expected-note{{uninitialized field 'this->VirtualBase2::x'}}
 716   VirtualBase2() = default;
 717   VirtualBase2(int) : x(63) {}
 718 };
 719 struct VirtualFirst2 : virtual public VirtualBase2 {
 720   VirtualFirst2() = default;
 721   VirtualFirst2(int) : VirtualBase2(int{}) {}
 722   VirtualFirst2(int, int) { x = 64; }
 723 };
 724 struct VirtualSecond2 : virtual public VirtualBase2 {
 725   VirtualSecond2() = default;
 726   VirtualSecond2(int) : VirtualBase2(int{}) {}
 727   VirtualSecond2(int, int) { x = 65; }
 728 };
 729
 730 class VirtualDiamondInheritanceTest2 : public VirtualFirst2, public VirtualSecond2 {
 731
 732 public:
 733   VirtualDiamondInheritanceTest2() // expected-warning{{1 uninitialized field}}
 734       : VirtualFirst2(int{}) {
 735     // From the N4659 C++ Standard Working Draft:
 736     //
 737     //   (15.6.2.7)
 738     //   [...] A 'mem-initializer' where the 'mem-initializer-id' denotes a
 739     //   virtual base class is ignored during execution of a constructor of any
 740     //   class that is not the most derived class.
 741     //
 742     // This means that Left1::x will not be initialized, because in both
 743     // VirtualFirst::VirtualFirst(int) and VirtualSecond::VirtualSecond(int)
 744     // the constructor delegation to Left1::Left1(int) will be
 745     // ignored.
 746   }
 747 };
 748
 749 void fVirtualDiamondInheritanceTest2() {
 750   VirtualDiamondInheritanceTest2();
 751 }
 752
 753 struct VirtualBase3 {
 754   int x; // expected-note{{uninitialized field 'this->VirtualBase3::x'}}
 755   VirtualBase3() = default;
 756   VirtualBase3(int) : x(66) {}
 757 };
 758 struct VirtualFirst3 : virtual public VirtualBase3 {
 759   VirtualFirst3() = default;
 760   VirtualFirst3(int) : VirtualBase3(int{}) {}
 761   VirtualFirst3(int, int) { x = 67; }
 762 };
 763 struct VirtualSecond3 : virtual public VirtualBase3 {
 764   VirtualSecond3() = default;
 765   VirtualSecond3(int) : VirtualBase3(int{}) {}
 766   VirtualSecond3(int, int) { x = 68; }
 767 };
 768
 769 class VirtualDiamondInheritanceTest3 : public VirtualFirst3, public VirtualSecond3 {
 770
 771 public:
 772   VirtualDiamondInheritanceTest3() // expected-warning{{1 uninitialized field}}
 773       : VirtualFirst3(int{}) {}
 774 };
 775
 776 void fVirtualDiamondInheritanceTest3() {
 777   VirtualDiamondInheritanceTest3();
 778 }
 779
 780 //===----------------------------------------------------------------------===//
 781 // Dynamic type test.
 782 //===----------------------------------------------------------------------===//
 783
 784 struct DynTBase1 {};
 785 struct DynTDerived1 : DynTBase1 {
 786   int y; // expected-note{{uninitialized field 'static_cast<struct DynTDerived1 *>(this->bptr)->y'}}
 787 };
 788
 789 struct DynamicTypeTest1 {
 790   DynTBase1 *bptr;
 791   int i = 0;
 792
 793   DynamicTypeTest1(DynTBase1 *bptr) : bptr(bptr) {} // expected-warning{{1 uninitialized field}}
 794 };
 795
 796 void fDynamicTypeTest1() {
 797   DynTDerived1 d;
 798   DynamicTypeTest1 t(&d);
 799 };
 800
 801 struct DynTBase2 {
 802   int x; // expected-note{{uninitialized field 'static_cast<struct DynTDerived2 *>(this->bptr)->DynTBase2::x'}}
 803 };
 804 struct DynTDerived2 : DynTBase2 {
 805   int y; // expected-note{{uninitialized field 'static_cast<struct DynTDerived2 *>(this->bptr)->y'}}
 806 };
 807
 808 struct DynamicTypeTest2 {
 809   DynTBase2 *bptr;
 810   int i = 0;
 811
 812   DynamicTypeTest2(DynTBase2 *bptr) : bptr(bptr) {} // expected-warning{{2 uninitialized fields}}
 813 };
 814
 815 void fDynamicTypeTest2() {
 816   DynTDerived2 d;
 817   DynamicTypeTest2 t(&d);
 818 }
 819
 820 struct SymbolicSuperRegionBase {
 821   SymbolicSuperRegionBase() {}
 822 };
 823
 824 struct SymbolicSuperRegionDerived : SymbolicSuperRegionBase {
 825   SymbolicSuperRegionBase *bptr; // no-crash
 826   SymbolicSuperRegionDerived(SymbolicSuperRegionBase *bptr) : bptr(bptr) {}
 827 };
 828
 829 SymbolicSuperRegionDerived *getSymbolicRegion();
 830
 831 void fSymbolicSuperRegionTest() {
 832   SymbolicSuperRegionDerived test(getSymbolicRegion());
 833 }