sdcc/support/regression/tests/gcc-torture-execute-20060910-1.c

   1 /*
   2    20060910-1.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 #pragma disable_warning 85
  12
  13 /* PR rtl-optimization/28636 */
  14 /* Origin: Andreas Schwab <schwab@suse.de> */
  15
  16 struct input_ty
  17 {
  18   unsigned char *buffer_position;
  19   unsigned char *buffer_end;
  20 };
  21
  22 int input_getc_complicated (struct input_ty *x) { return 0; }
  23
  24 int check_header (struct input_ty *deeper)
  25 {
  26   unsigned len;
  27   for (len = 0; len < 6; len++)
  28     if (((deeper)->buffer_position < (deeper)->buffer_end
  29          ? *((deeper)->buffer_position)++
  30          : input_getc_complicated((deeper))) < 0)
  31       return 0;
  32   return 1;
  33 }
  34
  35 struct input_ty s;
  36 unsigned char b[6];
  37
  38 void testTortureExecute (void)
  39 {
  40   s.buffer_position = b;
  41   s.buffer_end = b + sizeof b;
  42   if (!check_header(&s))
  43     ASSERT (0);
  44   if (s.buffer_position != s.buffer_end)
  45     ASSERT (0);
  46   return;
  47 }