gcc/testsuite/gcc.c-torture/execute/pr56899.c

   1 /* PR tree-optimization/56899 */
   2
   3 #if __SIZEOF_INT__ == 4 && __CHAR_BIT__ == 8
   4 __attribute__((noinline, noclone)) void
   5 f1 (int v)
   6 {
   7   int x = -214748365 * (v - 1);
   8   if (x != -1932735285)
   9     __builtin_abort ();
  10 }
  11
  12 __attribute__((noinline, noclone)) void
  13 f2 (int v)
  14 {
  15   int x = 214748365 * (v + 1);
  16   if (x != -1932735285)
  17     __builtin_abort ();
  18 }
  19
  20 __attribute__((noinline, noclone)) void
  21 f3 (unsigned int v)
  22 {
  23   unsigned int x = -214748365U * (v - 1);
  24   if (x != -1932735285U)
  25     __builtin_abort ();
  26 }
  27
  28 __attribute__((noinline, noclone)) void
  29 f4 (unsigned int v)
  30 {
  31   unsigned int x = 214748365U * (v + 1);
  32   if (x != -1932735285U)
  33     __builtin_abort ();
  34 }
  35 #endif
  36
  37 int
  38 main ()
  39 {
  40 #if __SIZEOF_INT__ == 4 && __CHAR_BIT__ == 8
  41   f1 (10);
  42   f2 (-10);
  43   f3 (10);
  44   f4 (-10U);
  45 #endif
  46   return 0;
  47 }