sdcc/support/regression/tests/gcc-torture-execute-20050826-1.c

   1 /*
   2    20050826-1.c from the execute part of the gcc torture suite.
   3  */
   4
   5 #include <testfwk.h>
   6
   7 #ifdef __SDCC
   8 #pragma std_c99
   9 #endif
  10
  11 #include <string.h>
  12
  13 #if defined __SDCC_pdk14
  14 #define SIZE 8     // the available memory is limited
  15 #elif defined __SDCC_mcs51 && (__SDCC_MODEL_SMALL || defined __SDCC_MODEL_MEDIUM) || defined __SDCC_pdk15 || defined __SDCC_pic14
  16 #define SIZE 64     // the available memory is limited
  17 #else
  18 #define SIZE 2048
  19 #endif
  20
  21 /* PR rtl-optimization/23561 */
  22
  23 struct A
  24 {
  25   char a1[1];
  26   char a2[5];
  27   char a3[1];
  28   char a4[SIZE - 7];
  29 } a;
  30
  31 void
  32 bar (struct A *x)
  33 {
  34   size_t i;
  35   ASSERTFALSE (memcmp (x, "\1HELLO\1", sizeof "\1HELLO\1"));
  36   for (i = 0; i < sizeof (x->a4); i++)
  37     ASSERTFALSE (x->a4[i]);
  38 }
  39
  40 int
  41 foo (void)
  42 {
  43   memset (&a, 0, sizeof (a));
  44   a.a1[0] = 1;
  45   memcpy (a.a2, "HELLO", sizeof "HELLO");
  46   a.a3[0] = 1;
  47   bar (&a);
  48   return 0;
  49 }
  50
  51 void
  52 testTortureExecute (void)
  53 {
  54   foo ();
  55 }
  56