sdcc/support/regression/tests/mulextra.c.in

   1 /** Simple test for special multiplication support (wide x narrow)
   2
   3     type: unsigned char, signed char, unsigned int, signed int
   4 */
   5 #include <testfwk.h>
   6
   7 unsigned long long ull;
   8 unsigned long l;
   9
  10 void f(void)
  11 {
  12         ull = (unsigned long long)l * 10;
  13 }
  14
  15 {type} c;
  16
  17 void g(void)
  18 {
  19         ull = (unsigned long long)l * c;
  20 }
  21
  22 void
  23 testMul (void)
  24 {
  25         l = 10ull;
  26         c = 10;
  27         f();
  28         ASSERT (ull == 10ull * ({type})10);
  29         g();
  30         ASSERT (ull == 10ull * ({type})10);
  31
  32         l = 100;
  33         c = 10;
  34         f();
  35         ASSERT (ull == 100ull * ({type})10);
  36         g();
  37         ASSERT (ull == 100ull * ({type})10);
  38
  39         l = 1000ull;
  40         c = 10;
  41         f();
  42         ASSERT (ull == 1000ull * ({type})10);
  43         g();
  44         ASSERT (ull == 1000ull * ({type})10);
  45
  46         l = 10000ull;
  47         c = 10;
  48         f();
  49         ASSERT (ull == 10000ull * ({type})10);
  50         g();
  51         ASSERT (ull == 10000ull * ({type})10);
  52
  53         l = 100000ull;
  54         c = 10;
  55         f();
  56         ASSERT (ull == 100000ull * ({type})10);
  57         g();
  58         ASSERT (ull == 100000ull * ({type})10);
  59
  60         l = 100000ull;
  61         c = 100;
  62         g();
  63         ASSERT (ull == 100000ull * ({type})100);
  64
  65         l = 100000ull;
  66         c = 1000;
  67         g();
  68         ASSERT (ull == 100000ull * ({type})1000);
  69 }
  70