gcc/testsuite/gcc.target/bfin/shift.c

   1 extern void abort (void);
   2 extern void exit (int);
   3
   4 typedef short  __v2hi __attribute ((vector_size(4)));
   5 typedef __v2hi fract2x16;
   6 typedef short fract16;
   7
   8 int main ()
   9 {
  10   fract2x16 a, b, c, d;
  11   fract16 t1, t2;
  12   a = __builtin_bfin_compose_2x16 (0xe005, 0x1000);
  13   b = __builtin_bfin_compose_2x16 (0x7000, 0x5000);
  14   c = __builtin_bfin_compose_2x16 (0x7000, 0xc000);
  15
  16   d = __builtin_bfin_shl_fr2x16 (c, 2);
  17   t1 = __builtin_bfin_extract_lo (d);
  18   t2 = __builtin_bfin_extract_hi (d);
  19   if ((unsigned short)t1 != 0x8000 || t2 != 0x7fff)
  20     abort ();
  21
  22   d = __builtin_bfin_shl_fr2x16 (c, -2);
  23   t1 = __builtin_bfin_extract_lo (d);
  24   t2 = __builtin_bfin_extract_hi (d);
  25   if ((unsigned short)t1 != 0xf000 || t2 != 0x1c00)
  26     abort ();
  27
  28   d = __builtin_bfin_shl_fr2x16 (a, 2);
  29   t1 = __builtin_bfin_extract_lo (d);
  30   t2 = __builtin_bfin_extract_hi (d);
  31   if (t1 != 0x4000 || (unsigned short)t2 != 0x8014)
  32     abort ();
  33
  34   d = __builtin_bfin_shl_fr2x16 (c, -4);
  35   t1 = __builtin_bfin_extract_lo (d);
  36   t2 = __builtin_bfin_extract_hi (d);
  37   if ((unsigned short)t1 != 0xfc00 || t2 != 0x0700)
  38     abort ();
  39
  40   d = __builtin_bfin_shl_fr2x16 (c, 2);
  41   t1 = __builtin_bfin_extract_lo (d);
  42   t2 = __builtin_bfin_extract_hi (d);
  43   if ((unsigned short)t1 != 0x8000 || t2 != 0x7fff)
  44     abort ();
  45
  46   d = __builtin_bfin_shl_fr2x16 (a, -2);
  47   t1 = __builtin_bfin_extract_lo (d);
  48   t2 = __builtin_bfin_extract_hi (d);
  49   if (t1 != 0x0400 || (unsigned short)t2 != 0xf801)
  50     abort ();
  51
  52   /* lsh */
  53   d = __builtin_bfin_lshl_fr2x16 (c, -4);
  54   t1 = __builtin_bfin_extract_lo (d);
  55   t2 = __builtin_bfin_extract_hi (d);
  56   if (t1 != 0x0c00 || t2 != 0x0700)
  57     abort ();
  58
  59   d = __builtin_bfin_lshl_fr2x16 (c, 2);
  60   t1 = __builtin_bfin_extract_lo (d);
  61   t2 = __builtin_bfin_extract_hi (d);
  62   if (t1 != 0x0000 || t2 != -0x4000)
  63     abort ();
  64
  65   d = __builtin_bfin_lshl_fr2x16 (a, -2);
  66   t1 = __builtin_bfin_extract_lo (d);
  67   t2 = __builtin_bfin_extract_hi (d);
  68   if (t1 != 0x0400 || (unsigned short)t2 != 0x3801)
  69     abort ();
  70
  71   exit (0);
  72 }
  73