Subversion Repositories openrisc

/* { dg-do run { target { bmi } } } */

/* { dg-options "-O2 -mbmi -fno-inline" } */

#include <x86intrin.h>

#include "bmi-check.h"

int calc_tzcnt_u32 (int src)

{

  int i;

  int res = 0;

  while ( (res<32) && ((src&1) == 0)) {

    ++res;

    src >>= 1;

  }

  return res;

}

static void

bmi_test ()

{

  unsigned i;

  int src = 0xfacec0ff;

  int res, res_ref;

  for (i=0; i<5; ++i) {

    src = i + src << i;

    res_ref = calc_tzcnt_u32 (src);

    res = __tzcnt_u32 (src);

    if (res != res_ref)

      abort();

  }

}