gcc/testsuite/c-c++-common/dfp/operator-arith-fold.c

   1 /* { dg-options "-O2" } */
   2
   3 /* C99 6.5.5: Multiplicative operators.
   4    C99 6.5.6: Additive operators.  */
   5
   6 #include "dfp-dbg.h"
   7
   8 extern void link_error (void);
   9
  10 int
  11 main ()
  12 {
  13   _Decimal32 d32_1, d32_2;
  14
  15   /* Compare like-typed positive constants. */
  16   if (2.99df + 5.1df != 8.09df)
  17     link_error ();
  18
  19   if (5.77df - 2.22dd != 3.55df)
  20     link_error ();
  21
  22   if (2.0dl * 3.7dd * -2 != -14.8df)
  23     link_error ();
  24
  25   if (.18df / -.2df + 1 != 1.e-1dd)
  26     link_error ();
  27
  28   d32_1 = 3.0df;
  29   d32_2 = 1.0df;
  30
  31   if (!__builtin_constant_p (d32_1 + 0.2df))
  32     link_error ();
  33
  34   if (!__builtin_constant_p (1.0df / 3.0df))
  35     link_error ();
  36
  37   if (!__builtin_constant_p (d32_2 / d32_1))
  38     link_error ();
  39
  40   d32_2 = 2.0df;
  41   if (!__builtin_constant_p (d32_2 / d32_1))
  42     link_error ();
  43
  44   return 0;
  45 }