1  /* Make sure that gcc understands that an in/out operand is a use as well
       2     as a def.  */
       3  
       4  /* { dg-do compile } */
       5  /* { dg-options "-O -fdump-tree-optimized-nouid" } */
       6  
       7  void f()
       8  {
       9    int i = 42;
      10    int j = 63;
      11    
      12    asm ("": "=m"(i), "+r"(j) : "m"(i));
      13  }
      14  
      15  /* { dg-final { scan-tree-dump-times "42" 1 "optimized" } } */
      16  /* { dg-final { scan-tree-dump-times "63" 1 "optimized" } } */