Subversion Repositories openrisc

/* { dg-do run { target { bmi2 && { ! ia32 } } } } */
/* { dg-options "-mbmi2 -O2" } */
 
#include <x86intrin.h>
#include "bmi2-check.h"
 
__attribute__((noinline))
unsigned long long
calc_pdep_u64 (unsigned long long a, unsigned long long mask)
{
  unsigned long long res = 0;
  unsigned long long i, k = 0;
 
  for (i = 0; i < 64; ++i)
    if (mask & (1LL << i)) {
      res |= ((a & (1LL << k)) >> k) << i;
      ++k;
    }
  return res;
}
 
static void
bmi2_test ()
{
  unsigned long long i;
  unsigned long long src = 0xce7acce7acce7ac;
  unsigned long long res, res_ref;
 
  for (i = 0; i < 5; ++i) {
    src = src * (i + 1);
 
    res_ref = calc_pdep_u64 (src, ~(i * 3));
    res = _pdep_u64 (src, ~(i * 3));
 
    if (res != res_ref)
      abort();
  }
}