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 <x86intrin.h>
       8  #include "bmi2-check.h"
       9  
      10  __attribute__((noinline))
      11  unsigned long long
      12  calc_mul_u32 (unsigned volatile a, unsigned b)
      13  {
      14    unsigned long long res = 0;
      15    int i;
      16    for (i = 0; i < b; ++i)
      17      res += a;
      18  
      19    return res;
      20  }
      21  
      22  __attribute__((noinline))
      23  unsigned calc_mulx_u32 (unsigned x, unsigned y, unsigned *res_h)
      24  {
      25    return (unsigned) _mulx_u32 (x, y, res_h);
      26  }
      27  
      28  static void
      29  bmi2_test ()
      30  {
      31    unsigned i;
      32    unsigned a = 0xce7ace0;
      33    unsigned b = 0xfacefff;
      34    unsigned res_l, res_h;
      35    unsigned long long res, res_ref;
      36  
      37    for (i = 0; i < 5; ++i) {
      38      a = a * (i + 1);
      39      b = b / (i + 1);
      40  
      41      res_ref = calc_mul_u32 (a, b);
      42      res_l = calc_mulx_u32 (a, b, &res_h);
      43  
      44      res = ((unsigned long long) res_h << 32) | res_l;
      45  
      46      if (res != res_ref)
      47        abort();
      48    }
      49  }