clang/test/Layout/aix-virtual-function-and-base-with-double.cpp

   1 // RUN: %clang_cc1 -triple powerpc-ibm-aix-xcoff -fdump-record-layouts \
   2 // RUN:     -fsyntax-only %s | \
   3 // RUN:   FileCheck --check-prefixes=CHECK,CHECK32 %s
   4
   5 // RUN: %clang_cc1 -triple powerpc64-ibm-aix-xcoff -fdump-record-layouts \
   6 // RUN:     -fsyntax-only %s | \
   7 // RUN:   FileCheck --check-prefixes=CHECK,CHECK64 %s
   8
   9 namespace test1 {
  10 struct A {
  11   double d1;
  12   virtual void boo() {}
  13 };
  14
  15 struct B {
  16   double d2;
  17   A a;
  18 };
  19
  20 struct C : public A {
  21   double d3;
  22 };
  23
  24 int i = sizeof(B);
  25 int j = sizeof(C);
  26
  27 // CHECK:      *** Dumping AST Record Layout
  28 // CHECK-NEXT:            0 | struct test1::A
  29 // CHECK-NEXT:            0 |   (A vtable pointer)
  30 // CHECK32-NEXT:          4 |   double d1
  31 // CHECK32-NEXT:            | [sizeof=12, dsize=12, align=4, preferredalign=4,
  32 // CHECK32-NEXT:            |  nvsize=12, nvalign=4, preferrednvalign=4]
  33 // CHECK64-NEXT:          8 |   double d1
  34 // CHECK64-NEXT:            | [sizeof=16, dsize=16, align=8, preferredalign=8,
  35 // CHECK64-NEXT:            |  nvsize=16, nvalign=8, preferrednvalign=8]
  36
  37 // CHECK:      *** Dumping AST Record Layout
  38 // CHECK-NEXT:            0 | struct test1::B
  39 // CHECK-NEXT:            0 |   double d2
  40 // CHECK-NEXT:            8 |   struct test1::A a
  41 // CHECK-NEXT:            8 |     (A vtable pointer)
  42 // CHECK32-NEXT:         12 |     double d1
  43 // CHECK32-NEXT:            | [sizeof=24, dsize=20, align=4, preferredalign=8,
  44 // CHECK32-NEXT:            |  nvsize=20, nvalign=4, preferrednvalign=8]
  45 // CHECK64-NEXT:         16 |     double d1
  46 // CHECK64-NEXT:            | [sizeof=24, dsize=24, align=8, preferredalign=8,
  47 // CHECK64-NEXT:            |  nvsize=24, nvalign=8, preferrednvalign=8]
  48
  49 // CHECK:      *** Dumping AST Record Layout
  50 // CHECK-NEXT:            0 | struct test1::C
  51 // CHECK-NEXT:            0 |   struct test1::A (primary base)
  52 // CHECK-NEXT:            0 |     (A vtable pointer)
  53 // CHECK32-NEXT:          4 |     double d1
  54 // CHECK32-NEXT:         12 |   double d3
  55 // CHECK32-NEXT:            | [sizeof=20, dsize=20, align=4, preferredalign=4,
  56 // CHECK32-NEXT:            |  nvsize=20, nvalign=4, preferrednvalign=4]
  57 // CHECK64-NEXT:          8 |     double d1
  58 // CHECK64-NEXT:         16 |   double d3
  59 // CHECK64-NEXT:            | [sizeof=24, dsize=24, align=8, preferredalign=8,
  60 // CHECK64-NEXT:            |  nvsize=24, nvalign=8, preferrednvalign=8]
  61
  62 } // namespace test1
  63
  64 namespace test2 {
  65 struct A {
  66   long long l1;
  67 };
  68
  69 struct B : public virtual A {
  70   double d2;
  71 };
  72
  73 #pragma pack(2)
  74 struct C : public virtual A {
  75   double __attribute__((aligned(4))) d3;
  76 };
  77
  78 int i = sizeof(B);
  79 int j = sizeof(C);
  80
  81 // CHECK:      *** Dumping AST Record Layout
  82 // CHECK-NEXT:            0 | struct test2::A
  83 // CHECK-NEXT:            0 |   long long l1
  84 // CHECK-NEXT:              | [sizeof=8, dsize=8, align=8, preferredalign=8,
  85 // CHECK-NEXT:              |  nvsize=8, nvalign=8, preferrednvalign=8]
  86
  87 // CHECK:      *** Dumping AST Record Layout
  88 // CHECK-NEXT:            0 | struct test2::B
  89 // CHECK-NEXT:            0 |   (B vtable pointer)
  90 // CHECK32-NEXT:          4 |   double d2
  91 // CHECK64-NEXT:          8 |   double d2
  92 // CHECK-NEXT:           16 |   struct test2::A (virtual base)
  93 // CHECK-NEXT:           16 |     long long l1
  94 // CHECK-NEXT:              | [sizeof=24, dsize=24, align=8, preferredalign=8,
  95 // CHECK32-NEXT:            |  nvsize=12, nvalign=4, preferrednvalign=4]
  96 // CHECK64-NEXT:            |  nvsize=16, nvalign=8, preferrednvalign=8]
  97
  98 // CHECK:      *** Dumping AST Record Layout
  99 // CHECK-NEXT:            0 | struct test2::C
 100 // CHECK-NEXT:            0 |   (C vtable pointer)
 101 // CHECK32-NEXT:          4 |   double d3
 102 // CHECK32-NEXT:         12 |   struct test2::A (virtual base)
 103 // CHECK32-NEXT:         12 |     long long l1
 104 // CHECK32-NEXT:            | [sizeof=20, dsize=20, align=2, preferredalign=2,
 105 // CHECK32-NEXT:            |  nvsize=12, nvalign=2, preferrednvalign=2]
 106 // CHECK64-NEXT:          8 |   double d3
 107 // CHECK64-NEXT:         16 |   struct test2::A (virtual base)
 108 // CHECK64-NEXT:         16 |     long long l1
 109 // CHECK64-NEXT:            | [sizeof=24, dsize=24, align=2, preferredalign=2,
 110 // CHECK64-NEXT:            |  nvsize=16, nvalign=2, preferrednvalign=2]
 111
 112 } // namespace test2