gcc/testsuite/gcc.c-torture/execute/pr39339.c

   1 struct C
   2 {
   3   unsigned int c;
   4   struct D
   5   {
   6     unsigned int columns : 4;
   7     unsigned int fore : 12;
   8     unsigned int back : 6;
   9     unsigned int fragment : 1;
  10     unsigned int standout : 1;
  11     unsigned int underline : 1;
  12     unsigned int strikethrough : 1;
  13     unsigned int reverse : 1;
  14     unsigned int blink : 1;
  15     unsigned int half : 1;
  16     unsigned int bold : 1;
  17     unsigned int invisible : 1;
  18     unsigned int pad : 1;
  19   } attr;
  20 };
  21
  22 struct A
  23 {
  24   struct C *data;
  25   unsigned int len;
  26 };
  27
  28 struct B
  29 {
  30   struct A *cells;
  31   unsigned char soft_wrapped : 1;
  32 };
  33
  34 struct E
  35 {
  36   long row, col;
  37   struct C defaults;
  38 };
  39
  40 __attribute__ ((noinline))
  41 void foo (struct E *screen, unsigned int c, int columns, struct B *row)
  42 {
  43   struct D attr;
  44   long col;
  45   int i;
  46   col = screen->col;
  47   attr = screen->defaults.attr;
  48   attr.columns = columns;
  49   row->cells->data[col].c = c;
  50   row->cells->data[col].attr = attr;
  51   col++;
  52   attr.fragment = 1;
  53   for (i = 1; i < columns; i++)
  54     {
  55       row->cells->data[col].c = c;
  56       row->cells->data[col].attr = attr;
  57       col++;
  58     }
  59 }
  60
  61 int
  62 main (void)
  63 {
  64   struct E e = {.row = 5,.col = 0,.defaults =
  65       {6, {-1, -1, -1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0}} };
  66   struct C c[4];
  67   struct A a = { c, 4 };
  68   struct B b = { &a, 1 };
  69   struct D d;
  70   __builtin_memset (&c, 0, sizeof c);
  71   foo (&e, 65, 2, &b);
  72   d = e.defaults.attr;
  73   d.columns = 2;
  74   if (__builtin_memcmp (&d, &c[0].attr, sizeof d))
  75     __builtin_abort ();
  76   d.fragment = 1;
  77   if (__builtin_memcmp (&d, &c[1].attr, sizeof d))
  78     __builtin_abort ();
  79   return 0;
  80 }
  81