clang/test/Layout/aix-power-alignment-typedef.cpp

   1 // RUN: %clang_cc1 -triple powerpc-ibm-aix-xcoff -fdump-record-layouts %s | \
   2 // RUN:   FileCheck %s
   3
   4 // RUN: %clang_cc1 -triple powerpc64-ibm-aix-xcoff -fdump-record-layouts %s | \
   5 // RUN:   FileCheck %s
   6
   7 namespace test1 {
   8 typedef double __attribute__((__aligned__(2))) Dbl;
   9 struct A {
  10   Dbl x;
  11 };
  12
  13 int b = sizeof(A);
  14
  15 // CHECK:          0 | struct test1::A
  16 // CHECK-NEXT:     0 |   Dbl x
  17 // CHECK-NEXT:       | [sizeof=8, dsize=8, align=2, preferredalign=2,
  18 // CHECK-NEXT:       |  nvsize=8, nvalign=2, preferrednvalign=2]
  19
  20 } // namespace test1
  21
  22 namespace test2 {
  23 typedef double Dbl __attribute__((__aligned__(2)));
  24 typedef Dbl DblArr[];
  25
  26 union U {
  27   DblArr da;
  28   char x;
  29 };
  30
  31 int x = sizeof(U);
  32
  33 // CHECK:          0 | union test2::U
  34 // CHECK-NEXT:     0 |   DblArr da
  35 // CHECK-NEXT:     0 |   char x
  36 // CHECK-NEXT:       | [sizeof=2, dsize=2, align=2, preferredalign=2,
  37 // CHECK-NEXT:       |  nvsize=2, nvalign=2, preferrednvalign=2]
  38
  39 } // namespace test2
  40
  41 namespace test3 {
  42 typedef double DblArr[] __attribute__((__aligned__(2)));
  43
  44 union U {
  45   DblArr da;
  46   char x;
  47 };
  48
  49 int x = sizeof(U);
  50
  51 // CHECK:          0 | union test3::U
  52 // CHECK-NEXT:     0 |   DblArr da
  53 // CHECK-NEXT:     0 |   char x
  54 // CHECK-NEXT:       | [sizeof=2, dsize=2, align=2, preferredalign=2,
  55 // CHECK-NEXT:       |  nvsize=2, nvalign=2, preferrednvalign=2]
  56
  57 } // namespace test3
  58
  59 namespace test4 {
  60 typedef double Dbl __attribute__((__aligned__(2)));
  61
  62 union U {
  63   Dbl DblArr[];
  64   char x;
  65 };
  66
  67 int x = sizeof(U);
  68
  69 // CHECK:          0 | union test4::U
  70 // CHECK-NEXT:     0 |   Dbl[] DblArr
  71 // CHECK-NEXT:     0 |   char x
  72 // CHECK-NEXT:       | [sizeof=2, dsize=2, align=2, preferredalign=2,
  73 // CHECK-NEXT:       |  nvsize=2, nvalign=2, preferrednvalign=2]
  74
  75 } // namespace test4