1  /* { dg-do run  { target powerpc*-*-* i?86-*-* x86_64-*-* } } */
       2  /* { dg-options "-O1" } */
       3  /* Test to make sure that inline-asm causes the tree optimizers to get the
       4     V_MAY_DEFs and clobber memory.  */
       5  /* Test from Jakub Jelinek, modified by Andrew Pinski to work on all powerpc targets.  */
       6  extern void abort (void);
       7  
       8  unsigned short v = 0x0300;
       9  
      10  void
      11  foo (unsigned short *p)
      12  {
      13    *p = v;
      14  }
      15  
      16  int
      17  bar (void)
      18  {
      19    unsigned short x;
      20    volatile unsigned short *z;
      21    foo (&x);
      22    const unsigned int y = x;
      23    z = &x;
      24  #if defined (__powerpc__) || defined (__PPC__) || defined (__ppc__) || defined (_POWER) || defined (__ppc64__) || defined (__ppc)
      25    __asm __volatile ("sthbrx %1,0,%2" : "=m" (*z) : "r" (y), "r" (z));
      26  #elif defined __i386__ || defined __x86_64__
      27    __asm __volatile ("movb %b1,1(%2)\n\tmovb %h1,(%2)"
      28  		    : "=m" (*z) : "Q" (y), "R" (z));
      29  #endif
      30    return (x & 1) == 0;
      31  }
      32  
      33  int
      34  main (void)
      35  {
      36    if (bar ())
      37      abort ();
      38    return 0;
      39  }