1  /* { dg-do run } */
       2  /* { dg-options "-O3" } */
       3  /* { dg-require-effective-target lp64 } */
       4  /* { dg-require-effective-target ppc_cpu_supports_hw } */
       5  
       6  #define NO_WARN_X86_INTRINSICS 1
       7  #include "bmi2-check.h"
       8  
       9  __attribute__((noinline))
      10  unsigned long long
      11  calc_mul_u32 (unsigned volatile a, unsigned b)
      12  {
      13    unsigned long long res = 0;
      14    int i;
      15    for (i = 0; i < b; ++i)
      16      res += a;
      17  
      18    return res;
      19  }
      20  
      21  __attribute__((noinline))
      22  unsigned long long
      23  gen_mulx (unsigned a, unsigned b)
      24  {
      25    unsigned long long res;
      26  
      27    res = (unsigned long long)a * b;
      28  
      29    return res;
      30  }
      31  
      32  static void
      33  bmi2_test ()
      34  {
      35    unsigned i;
      36    unsigned a = 0xce7ace0;
      37    unsigned b = 0xfacefff;
      38    unsigned long long res, res_ref;
      39  
      40    for (i = 0; i < 5; ++i) {
      41      a = a * (i + 1);
      42      b = b / (i + 1);
      43  
      44      res_ref = calc_mul_u32 (a, b);
      45      res = gen_mulx (a, b);
      46  
      47      if (res != res_ref)
      48        abort();
      49    }
      50  }