gcc/testsuite/gcc.c-torture/execute/20040401-1.c

   1 /* PR optimization/8634 */
   2
   3 extern void abort (void);
   4
   5 struct foo {
   6   const char a, b, c, d, e, f, g, h, i, j;
   7 };
   8
   9 struct bar {
  10   const char a, b, c, d, e, f, g, h, i;
  11   char j;
  12 };
  13
  14 int test1 ()
  15 {
  16   struct foo X = { a : 'A', c : 'C', e : 'E', g : 'G', i : 'I' };
  17   char buffer[10];
  18   __builtin_memcpy (buffer, &X, 10);
  19   if (buffer[0] != 'A' || buffer[1] != '\0'
  20       || buffer[2] != 'C' || buffer[3] != '\0'
  21       || buffer[4] != 'E' || buffer[5] != '\0'
  22       || buffer[6] != 'G' || buffer[7] != '\0'
  23       || buffer[8] != 'I' || buffer[9] != '\0')
  24     abort ();
  25   return 0;
  26 }
  27
  28 int test2 ()
  29 {
  30   struct bar X = { a : 'A', c : 'C', e : 'E', g : 'G', i : 'I' };
  31   char buffer[10];
  32   __builtin_memcpy (buffer, &X, 10);
  33   if (buffer[0] != 'A' || buffer[1] != '\0'
  34       || buffer[2] != 'C' || buffer[3] != '\0'
  35       || buffer[4] != 'E' || buffer[5] != '\0'
  36       || buffer[6] != 'G' || buffer[7] != '\0'
  37       || buffer[8] != 'I' || buffer[9] != '\0')
  38     abort ();
  39   return 0;
  40 }
  41
  42 int test3 ()
  43 {
  44   struct foo X = { .b = 'B', .d = 'D', .f = 'F', .h = 'H' , .j = 'J' };
  45   char buffer[10];
  46   __builtin_memcpy (buffer, &X, 10);
  47   if (buffer[0] != '\0' || buffer[1] != 'B'
  48       || buffer[2] != '\0' || buffer[3] != 'D'
  49       || buffer[4] != '\0' || buffer[5] != 'F'
  50       || buffer[6] != '\0' || buffer[7] != 'H'
  51       || buffer[8] != '\0' || buffer[9] != 'J')
  52     abort ();
  53   return 0;
  54 }
  55
  56 int test4 ()
  57 {
  58   struct bar X = { .b = 'B', .d = 'D', .f = 'F', .h = 'H' , .j = 'J' };
  59   char buffer[10];
  60   __builtin_memcpy (buffer, &X, 10);
  61   if (buffer[0] != '\0' || buffer[1] != 'B'
  62       || buffer[2] != '\0' || buffer[3] != 'D'
  63       || buffer[4] != '\0' || buffer[5] != 'F'
  64       || buffer[6] != '\0' || buffer[7] != 'H'
  65       || buffer[8] != '\0' || buffer[9] != 'J')
  66     abort ();
  67   return 0;
  68 }
  69
  70 int main ()
  71 {
  72   test1 (); test2 (); test3 (); test4 ();
  73   return 0;
  74 }