gcc/testsuite/gcc.c-torture/execute/pr37924.c

   1 /* PR c/37924 */
   2
   3 extern void abort (void);
   4
   5 signed char a;
   6 unsigned char b;
   7
   8 int
   9 test1 (void)
  10 {
  11   int c = -1;
  12   return ((unsigned int) (a ^ c)) >> 9;
  13 }
  14
  15 int
  16 test2 (void)
  17 {
  18   int c = -1;
  19   return ((unsigned int) (b ^ c)) >> 9;
  20 }
  21
  22 int
  23 main (void)
  24 {
  25   a = 0;
  26   if (test1 () != (-1U >> 9))
  27     abort ();
  28   a = 0x40;
  29   if (test1 () != (-1U >> 9))
  30     abort ();
  31   a = 0x80;
  32   if (test1 () != (a < 0) ? 0 : (-1U >> 9))
  33     abort ();
  34   a = 0xff;
  35   if (test1 () != (a < 0) ? 0 : (-1U >> 9))
  36     abort ();
  37   b = 0;
  38   if (test2 () != (-1U >> 9))
  39     abort ();
  40   b = 0x40;
  41   if (test2 () != (-1U >> 9))
  42     abort ();
  43   b = 0x80;
  44   if (test2 () != (-1U >> 9))
  45     abort ();
  46   b = 0xff;
  47   if (test2 () != (-1U >> 9))
  48     abort ();
  49   return 0;
  50 }