gcc/testsuite/gcc.dg/torture/pr8081.c

   1 /* { dg-do run } */
   2 /* { dg-skip-if "requires alloca" { ! alloca } { "-O0" } { "" } } */
   3
   4 extern void abort (void);
   5 int
   6 main (int argc, char **argv)
   7 {
   8   int size = 10;
   9   typedef struct
  10     {
  11       char val[size];
  12     }
  13   block;
  14   block a, b;
  15   block __attribute__((noinline))
  16   retframe_block ()
  17     {
  18       return *(block *) &b;
  19     }
  20   b.val[0] = 1;
  21   b.val[9] = 2;
  22   a=retframe_block ();
  23   if (a.val[0] != 1
  24       || a.val[9] != 2)
  25     abort ();
  26   return 0;
  27 }