gcc/testsuite/gcc.target/powerpc/cntlzdm-1.c

   1 /* { dg-do run { target { power10_hw } } } */
   2 /* { dg-do link { target { ! power10_hw } } } */
   3 /* { dg-require-effective-target power10_ok } */
   4 /* { dg-require-effective-target lp64 } */
   5 /* { dg-options "-mdejagnu-cpu=power10" } */
   6
   7 extern void abort (void);
   8
   9 unsigned long long int
  10 do_cntlzdm (unsigned long long int source, unsigned long long int mask)
  11 {
  12   return __builtin_cntlzdm (source, mask);
  13 }
  14
  15 int main (int argc, char *argv [])
  16 {
  17   unsigned long long int sources [4], masks [4];
  18   unsigned long long int intermediates [4][4] = {
  19     /* sources[0] with each of masks [0 .. 3] */
  20     { 0x0000a5f0ll, 0x00007e3cll, 0x000050ecll, 0x0000af73ll },
  21     /* sources[1] with each of masks [0 .. 3] */
  22     { 0x00007e3cll, 0x0000a5f0ll, 0x0000ec50ll, 0x000073afll },
  23     /* sources[2] with each of masks [0 .. 3] */
  24     { 0x00003ca5ll, 0x0000f07ell, 0x0000c50ell, 0x00003af7ll },
  25     /* sources[3] with each of masks [0 .. 3] */
  26     { 0x00005a0fll, 0x0000e7c3ll, 0x0000af73ll, 0x000050ecll },
  27   };
  28   unsigned long long int results [4][4] = {
  29     { 0, 1, 1, 0 },
  30     { 1, 0, 0, 1 },
  31     { 2, 0, 0, 2 },
  32     { 1, 0, 0, 1 },
  33   };
  34
  35   sources[0] = 0xa5f07e3cll;
  36   sources[1] = 0x7e3ca5f0ll;
  37   sources[2] = 0x3ca5f07ell;
  38   sources[3] = 0x5a0fe7c3ll;
  39
  40   masks[0] = 0xffff0000ll;
  41   masks[1] = 0x0000ffffll;
  42   masks[2] = 0x0f0f0f0fll;
  43   masks[3] = 0xf0f0f0f0ll;
  44
  45   unsigned long long int result;
  46
  47   for (int i = 0; i < 4; i++)
  48     {
  49       for (int j = 0; j < 4; j++)
  50         {
  51           if (do_cntlzdm (sources[i], masks[j]) != results [i][j])
  52             abort ();
  53         }
  54     }
  55
  56   return 0;
  57 }