Home | History | Annotate | Download | only in CodeGen
      1 // RUN: %clang_cc1 -emit-llvm-only  -triple i386-apple-darwin9 -fdump-record-layouts %s | FileCheck %s
      2 // rdar://8823265
      3 
      4 #pragma pack(1)
      5 struct _one_ms {
      6         short m:9;      // size is 2
      7         int q:27;       // size is 6
      8         short w:13;     // size is 8
      9         short e:3;      // size is 8
     10         char r:4;       // size is 9
     11         char t:7;       // size is 10
     12         short y:16;     // size is 12
     13         short u:1;      // size is 14
     14         char i:2;       // size is 15
     15         int a;          // size is 19
     16         char o:6;       // size is 20
     17         char s:2;       // size is 20
     18         short d:10;     // size is 22
     19         short f:4;      // size is 22
     20         char b;         // size is 23
     21         char g:1;       // size is 24
     22         short h:13;     // size is 26
     23         char j:8;       // size is 27
     24         char k:5;       // size is 28
     25         char c;         // size is 29
     26         int l:28;       // size is 33
     27         char z:7;       // size is 34
     28         int x:20;       // size is 38
     29 } __attribute__((__ms_struct__));
     30 typedef struct _one_ms one_ms;
     31 
     32 static int a1[(sizeof(one_ms) == 38) - 1];
     33 
     34 #pragma pack(2)
     35 struct _two_ms {
     36         short m:9;
     37         int q:27;
     38         short w:13;
     39         short e:3;
     40         char r:4;
     41         char t:7;
     42         short y:16;
     43         short u:1;
     44         char i:2;
     45         int a;
     46         char o:6;
     47         char s:2;
     48         short d:10;
     49         short f:4;
     50         char b;
     51         char g:1;
     52         short h:13;
     53         char j:8;
     54         char k:5;
     55         char c;
     56         int l:28;
     57         char z:7;
     58         int x:20;
     59 } __attribute__((__ms_struct__));
     60 
     61 typedef struct _two_ms two_ms;
     62 
     63 static int a2[(sizeof(two_ms) == 42) - 1];
     64 
     65 #pragma pack(4)
     66 struct _four_ms {
     67         short m:9;
     68         int q:27;
     69         short w:13;
     70         short e:3;
     71         char r:4;
     72         char t:7;
     73         short y:16;
     74         short u:1;
     75         char i:2;
     76         int a;
     77         char o:6;
     78         char s:2;
     79         short d:10;
     80         short f:4;
     81         char b;
     82         char g:1;
     83         short h:13;
     84         char j:8;
     85         char k:5;
     86         char c;
     87         int l:28;
     88         char z:7;
     89         int x:20;
     90 } __attribute__((__ms_struct__));
     91 typedef struct _four_ms four_ms;
     92 
     93 static int a4[(sizeof(four_ms) == 48) - 1];
     94 
     95 #pragma pack(8)
     96 struct _eight_ms {
     97         short m:9;
     98         int q:27;
     99         short w:13;
    100         short e:3;
    101         char r:4;
    102         char t:7;
    103         short y:16;
    104         short u:1;
    105         char i:2;
    106         int a;
    107         char o:6;
    108         char s:2;
    109         short d:10;
    110         short f:4;
    111         char b;
    112         char g:1;
    113         short h:13;
    114         char j:8;
    115         char k:5;
    116         char c;
    117         int l:28;
    118         char z:7;
    119         int x:20;
    120 } __attribute__((__ms_struct__));
    121 
    122 typedef struct _eight_ms eight_ms;
    123 
    124 static int a8[(sizeof(eight_ms) == 48) - 1];
    125 
    126 // rdar://15926990
    127 #pragma pack(2)
    128 struct test0 {
    129   unsigned long a : 8;
    130   unsigned long b : 8;
    131   unsigned long c : 8;
    132   unsigned long d : 10;
    133   unsigned long e : 1;
    134 } __attribute__((__ms_struct__));
    135 
    136 // CHECK:      Type: struct test0
    137 // CHECK-NEXT: Record:
    138 // CHECK-NEXT: Layout:
    139 // CHECK-NEXT:   Size:64
    140 // CHECK-NEXT:   DataSize:64
    141 // CHECK-NEXT:   Alignment:16
    142 // CHECK-NEXT:   FieldOffsets: [0, 8, 16, 32, 42]>
    143 
    144 static int test0[(sizeof(struct test0) == 8) ? 1 : -1];
    145