gcc/testsuite/gcc.target/frv/fr405-builtins-1.c

   1 /* Test the IACC multiply/accumulate instructions.  Also test the IACC
   2    read/write functions.  */
   3 /* { dg-options "-mcpu=fr405" } */
   4 /* { dg-do run } */
   5 extern void abort (void);
   6 extern void exit (int);
   7
   8 int main ()
   9 {
  10   long long res, res1, res2, res3;
  11
  12   __SMU (0x12345678, 0x40004000);
  13   __SMASS (0x12000000, 0x11223344);
  14   __SMSSS (0x01020304, 0x54321000);
  15
  16   res = __IACCreadll (0);
  17   res1 = 0x12345678LL * 0x40004000LL;
  18   res2 = 0x12000000LL * 0x11223344LL;
  19   res3 = 0x01020304LL * 0x54321000LL;
  20   if (res != res1 + res2 - res3)
  21     abort ();
  22
  23   __IACCsetll (0, 0x7ffffffffffffff0LL);
  24   __SMASS (0x100, 0x100);
  25   if (__IACCreadll (0) != 0x7fffffffffffffffLL)
  26     abort ();
  27
  28   __IACCsetl (0, -0x7ffffffe);
  29   __IACCsetl (1, 0);
  30   __SMSSS (0x10001, 0x10000);
  31   if (__IACCreadl (0) != -0x7fffffff - 1 || __IACCreadl (1) != -0x10000)
  32     abort ();
  33
  34   __SMSSS (0x10001, 0x10000);
  35   if (__IACCreadl (0) != -0x7fffffff - 1 || __IACCreadl (1) != 0)
  36     abort ();
  37
  38   exit (0);
  39 }