1  /* { dg-do run } */
       2  /* { dg-skip-if "ARC700 always has mpy option on" { arc700 } } */
       3  /* { dg-skip-if "ARC600 doesn't have mpy instruction" { arc6xx } } */
       4  /* { dg-options "-O2 -mmpy-option=0 -w -save-temps" } */
       5  
       6  #include <stdlib.h>
       7  
       8  /* Hide value propagation from the optimizers.  */
       9  static int
      10  id (int i)
      11  {
      12    asm ("": "+r" (i));
      13    return i;
      14  }
      15  
      16  static int
      17  mulhigh (unsigned a, unsigned b)
      18  {
      19    return (unsigned long long) a * b >> 32;
      20  }
      21  
      22  int
      23  main (void)
      24  {
      25    if (mulhigh (id (0x12345678), id (0x90abcdef)) != 0xa49a83e)
      26      abort ();
      27    return 0;
      28  }
      29  
      30  /* { dg-final { scan-assembler-not "mpyhu\[ \t\]" } } */
      31  /* { dg-final { scan-assembler "@__muldi3" } } */