clang/test/Layout/ms-x86-size-alignment-fail.cpp

   1 // RUN: %clang_cc1 -fno-rtti -emit-llvm-only -triple i686-pc-win32 -fms-extensions -fdump-record-layouts %s 2>/dev/null \
   2 // RUN:            | FileCheck %s
   3 // RUN: %clang_cc1 -fno-rtti -emit-llvm-only -triple x86_64-pc-win32 -fms-extensions -fdump-record-layouts %s 2>/dev/null \
   4 // RUN:            | FileCheck %s -check-prefix CHECK-X64
   5
   6 extern "C" int printf(const char *fmt, ...);
   7
   8 struct B0 { char a; B0() : a(0xB0) {} };
   9 struct __declspec(align(1)) B1 {};
  10
  11 struct A : virtual B0 {};
  12
  13 // CHECK: *** Dumping AST Record Layout
  14 // CHECK: *** Dumping AST Record Layout
  15 // CHECK-NEXT:    0 | struct A
  16 // CHECK-NEXT:    0 |   (A vbtable pointer)
  17 // CHECK-NEXT:    4 |   struct B0 (virtual base)
  18 // CHECK-NEXT:    4 |     char a
  19 // CHECK-NEXT:      | [sizeof=5, align=4
  20 // CHECK-NEXT:      |  nvsize=4, nvalign=4]
  21 // CHECK-X64: *** Dumping AST Record Layout
  22 // CHECK-X64: *** Dumping AST Record Layout
  23 // CHECK-X64-NEXT:    0 | struct A
  24 // CHECK-X64-NEXT:    0 |   (A vbtable pointer)
  25 // CHECK-X64-NEXT:    8 |   struct B0 (virtual base)
  26 // CHECK-X64-NEXT:    8 |     char a
  27 // CHECK-X64-NEXT:      | [sizeof=16, align=8
  28 // CHECK-X64-NEXT:      |  nvsize=8, nvalign=8]
  29
  30 struct __declspec(align(1)) B : virtual B0 {};
  31
  32 // CHECK: *** Dumping AST Record Layout
  33 // CHECK-NEXT:    0 | struct B
  34 // CHECK-NEXT:    0 |   (B vbtable pointer)
  35 // CHECK-NEXT:    4 |   struct B0 (virtual base)
  36 // CHECK-NEXT:    4 |     char a
  37 // CHECK-NEXT:      | [sizeof=8, align=4
  38 // CHECK-NEXT:      |  nvsize=4, nvalign=4]
  39 // CHECK-X64: *** Dumping AST Record Layout
  40 // CHECK-X64-NEXT:    0 | struct B
  41 // CHECK-X64-NEXT:    0 |   (B vbtable pointer)
  42 // CHECK-X64-NEXT:    8 |   struct B0 (virtual base)
  43 // CHECK-X64-NEXT:    8 |     char a
  44 // CHECK-X64-NEXT:      | [sizeof=16, align=8
  45 // CHECK-X64-NEXT:      |  nvsize=8, nvalign=8]
  46
  47 struct C : virtual B0 { int a; C() : a(0xC) {} };
  48
  49 // CHECK: *** Dumping AST Record Layout
  50 // CHECK-NEXT:    0 | struct C
  51 // CHECK-NEXT:    0 |   (C vbtable pointer)
  52 // CHECK-NEXT:    4 |   int a
  53 // CHECK-NEXT:    8 |   struct B0 (virtual base)
  54 // CHECK-NEXT:    8 |     char a
  55 // CHECK-NEXT:      | [sizeof=9, align=4
  56 // CHECK-NEXT:      |  nvsize=8, nvalign=4]
  57 // CHECK-X64: *** Dumping AST Record Layout
  58 // CHECK-X64-NEXT:    0 | struct C
  59 // CHECK-X64-NEXT:    0 |   (C vbtable pointer)
  60 // CHECK-X64-NEXT:    8 |   int a
  61 // CHECK-X64-NEXT:   16 |   struct B0 (virtual base)
  62 // CHECK-X64-NEXT:   16 |     char a
  63 // CHECK-X64-NEXT:      | [sizeof=24, align=8
  64 // CHECK-X64-NEXT:      |  nvsize=16, nvalign=8]
  65
  66 struct D : virtual B0 { __declspec(align(1)) int a; D() : a(0xD) {} };
  67
  68 // CHECK: *** Dumping AST Record Layout
  69 // CHECK-NEXT:    0 | struct D
  70 // CHECK-NEXT:    0 |   (D vbtable pointer)
  71 // CHECK-NEXT:    4 |   int a
  72 // CHECK-NEXT:    8 |   struct B0 (virtual base)
  73 // CHECK-NEXT:    8 |     char a
  74 // CHECK-NEXT:      | [sizeof=12, align=4
  75 // CHECK-NEXT:      |  nvsize=8, nvalign=4]
  76 // CHECK-X64: *** Dumping AST Record Layout
  77 // CHECK-X64-NEXT:    0 | struct D
  78 // CHECK-X64-NEXT:    0 |   (D vbtable pointer)
  79 // CHECK-X64-NEXT:    8 |   int a
  80 // CHECK-X64-NEXT:   16 |   struct B0 (virtual base)
  81 // CHECK-X64-NEXT:   16 |     char a
  82 // CHECK-X64-NEXT:      | [sizeof=24, align=8
  83 // CHECK-X64-NEXT:      |  nvsize=16, nvalign=8]
  84
  85 struct E : virtual B0, virtual B1 {};
  86
  87 // CHECK: *** Dumping AST Record Layout
  88 // CHECK: *** Dumping AST Record Layout
  89 // CHECK-NEXT:    0 | struct E
  90 // CHECK-NEXT:    0 |   (E vbtable pointer)
  91 // CHECK-NEXT:    4 |   struct B0 (virtual base)
  92 // CHECK-NEXT:    4 |     char a
  93 // CHECK-NEXT:    5 |   struct B1 (virtual base) (empty)
  94 // CHECK-NEXT:      | [sizeof=8, align=4
  95 // CHECK-NEXT:      |  nvsize=4, nvalign=4]
  96 // CHECK-X64: *** Dumping AST Record Layout
  97 // CHECK-X64: *** Dumping AST Record Layout
  98 // CHECK-X64-NEXT:    0 | struct E
  99 // CHECK-X64-NEXT:    0 |   (E vbtable pointer)
 100 // CHECK-X64-NEXT:    8 |   struct B0 (virtual base)
 101 // CHECK-X64-NEXT:    8 |     char a
 102 // CHECK-X64-NEXT:    9 |   struct B1 (virtual base) (empty)
 103 // CHECK-X64-NEXT:      | [sizeof=16, align=8
 104 // CHECK-X64-NEXT:      |  nvsize=8, nvalign=8]
 105
 106 struct F { char a; virtual ~F(); };
 107
 108 // CHECK: *** Dumping AST Record Layout
 109 // CHECK-NEXT:    0 | struct F
 110 // CHECK-NEXT:    0 |   (F vftable pointer)
 111 // CHECK-NEXT:    4 |   char a
 112 // CHECK-NEXT:      | [sizeof=8, align=4
 113 // CHECK-NEXT:      |  nvsize=8, nvalign=4]
 114 // CHECK-X64: *** Dumping AST Record Layout
 115 // CHECK-X64-NEXT:    0 | struct F
 116 // CHECK-X64-NEXT:    0 |   (F vftable pointer)
 117 // CHECK-X64-NEXT:    8 |   char a
 118 // CHECK-X64-NEXT:      | [sizeof=16, align=8
 119 // CHECK-X64-NEXT:      |  nvsize=16, nvalign=8]
 120
 121 int a[
 122 sizeof(A)+
 123 sizeof(B)+
 124 sizeof(C)+
 125 sizeof(D)+
 126 sizeof(E)+
 127 sizeof(F)];