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/* { dg-do run { target { bmi2 && { ! ia32 } } } } */

/* { dg-options "-mbmi2 -O2" } */

#include "bmi2-check.h"

__attribute__((noinline))

unsigned __int128

calc_mul_u64 (unsigned long long volatile a, unsigned long long b)

{

  unsigned __int128 res = 0;

  int i;

  for (i = 0; i < b; ++i)

    res += (unsigned __int128) a;

  return res;

}

static void

bmi2_test ()

{

  unsigned i;

  unsigned long long a = 0xce7ace0ce7ace0;

  unsigned long long b = 0xface;

  unsigned __int128 res, res_ref;

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

    a = a * (i + 1);

    b = b / (i + 1);

    res_ref = calc_mul_u64 (a, b);

    res = (unsigned __int128) a * b;

    if (res != res_ref)

      abort();

  }

}