gcc/testsuite/gcc.dg/vmx/x-04.c

   1 #include <altivec.h>
   2 vector unsigned char
   3 permute_128(vector unsigned char input)
   4 {
   5   vector unsigned char result, new_bit;
   6
   7   vector unsigned char select2 = ((vector unsigned char){2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2});
   8   vector unsigned char select3 = ((vector unsigned char){4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4});
   9   vector unsigned char select4 = ((vector unsigned char){8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8});
  10   vector unsigned char select5 = ((vector unsigned char){16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16});
  11   vector unsigned char select6 = ((vector unsigned char){32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32});
  12   vector unsigned char select7 = ((vector unsigned char){64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64});
  13   vector unsigned char select8 = ((vector unsigned char){128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128});
  14
  15   vector unsigned char control1
  16     = ((vector unsigned char){15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0});
  17   vector unsigned char control2
  18     = ((vector unsigned char){15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0});
  19   vector unsigned char control3
  20     = ((vector unsigned char){15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0});
  21   vector unsigned char control4
  22     = ((vector unsigned char){15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0});
  23   vector unsigned char control5
  24     = ((vector unsigned char){15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0});
  25   vector unsigned char control6
  26     = ((vector unsigned char){15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0});
  27   vector unsigned char control7
  28     = ((vector unsigned char){15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0});
  29   vector unsigned char control8
  30     = ((vector unsigned char){15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0});
  31   vector unsigned char rotate1 = ((vector unsigned char){1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1});
  32   vector unsigned char rotate2 = ((vector unsigned char){3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3});
  33   vector unsigned char rotate3 = ((vector unsigned char){5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5});
  34   vector unsigned char rotate4 = ((vector unsigned char){7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7});
  35   vector unsigned char rotate5 = ((vector unsigned char){1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1});
  36   vector unsigned char rotate6 = ((vector unsigned char){3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3});
  37   vector unsigned char rotate7 = ((vector unsigned char){5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5});
  38   vector unsigned char rotate8 = ((vector unsigned char){7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7});
  39
  40   result = vec_vperm(input, input, control1);
  41   result = vec_rl(result, rotate1);
  42
  43   new_bit = vec_vperm(input, input, control2);
  44   new_bit = vec_rl(new_bit, rotate2);
  45   result = vec_sel(result, new_bit, select2);
  46
  47   new_bit = vec_vperm(input, input, control3);
  48   new_bit = vec_rl(new_bit, rotate3);
  49   result = vec_sel(result, new_bit, select3);
  50
  51   new_bit = vec_vperm(input, input, control4);
  52   new_bit = vec_rl(new_bit, rotate4);
  53   result = vec_sel(result, new_bit, select4);
  54
  55   new_bit = vec_vperm(input, input, control5);
  56   new_bit = vec_rl(new_bit, rotate5);
  57   result = vec_sel(result, new_bit, select5);
  58
  59   new_bit = vec_vperm(input, input, control6);
  60   new_bit = vec_rl(new_bit, rotate6);
  61   result = vec_sel(result, new_bit, select6);
  62
  63   new_bit = vec_vperm(input, input, control7);
  64   new_bit = vec_rl(new_bit, rotate7);
  65   result = vec_sel(result, new_bit, select7);
  66
  67   new_bit = vec_vperm(input, input, control8);
  68   new_bit = vec_rl(new_bit, rotate8);
  69   result = vec_sel(result, new_bit, select8);
  70
  71   return result;
  72 }
  73
  74 int main()
  75 {
  76   vector unsigned char input
  77     = ((vector unsigned char){0,1,2,4,8,16,32,64,128,0,1,2,4,8,16,32});
  78   vector unsigned char result = permute_128(input);
  79   return 0;
  80 }