validation/optim/bitfield-init-zero.c

   1 struct bfu {
   2         unsigned int a:11;
   3         unsigned int f:9;
   4         unsigned int  :2;
   5         unsigned int z:3;
   6 };
   7
   8 struct bfu bfuu_init(unsigned int a)
   9 {
  10         struct bfu bf = { .f = a, };
  11         return bf;
  12 }
  13
  14 struct bfu bfus_init(int a)
  15 {
  16         struct bfu bf = { .f = a, };
  17         return bf;
  18 }
  19
  20 unsigned int bfu_get0(void)
  21 {
  22         struct bfu bf = { };
  23         return bf.f;
  24 }
  25
  26
  27 struct bfs {
  28         signed int a:11;
  29         signed int f:9;
  30         signed int  :2;
  31         signed int z:3;
  32 };
  33
  34 struct bfs bfsu_init(unsigned int a)
  35 {
  36         struct bfs bf = { .f = a, };
  37         return bf;
  38 }
  39
  40 struct bfs bfss_init(int a)
  41 {
  42         struct bfs bf = { .f = a, };
  43         return bf;
  44 }
  45
  46 int bfs_get0(void)
  47 {
  48         struct bfs bf = { };
  49         return bf.f;
  50 }
  51
  52 /*
  53  * check-name: bitfield implicit init zero
  54  * check-command: test-linearize -Wno-decl $file
  55  *
  56  * check-output-start
  57 bfuu_init:
  58 .L0:
  59         <entry-point>
  60         and.32      %r4 <- %arg1, $511
  61         shl.32      %r5 <- %r4, $11
  62         ret.32      %r5
  63
  64
  65 bfus_init:
  66 .L2:
  67         <entry-point>
  68         and.32      %r13 <- %arg1, $511
  69         shl.32      %r14 <- %r13, $11
  70         ret.32      %r14
  71
  72
  73 bfu_get0:
  74 .L4:
  75         <entry-point>
  76         ret.32      $0
  77
  78
  79 bfsu_init:
  80 .L6:
  81         <entry-point>
  82         and.32      %r27 <- %arg1, $511
  83         shl.32      %r28 <- %r27, $11
  84         ret.32      %r28
  85
  86
  87 bfss_init:
  88 .L8:
  89         <entry-point>
  90         and.32      %r36 <- %arg1, $511
  91         shl.32      %r37 <- %r36, $11
  92         ret.32      %r37
  93
  94
  95 bfs_get0:
  96 .L10:
  97         <entry-point>
  98         ret.32      $0
  99
 100
 101  * check-output-end
 102  */