1  /* PR inline-asm/8788 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O2" } */
       4  
       5  typedef struct {
       6      long x[6];
       7  } myjmp_buf;
       8  
       9  typedef struct {
      10      myjmp_buf regs;
      11  } my_stack;
      12  
      13  void switch_to_stack (my_stack *stack){
      14      asm (  /* { dg-error "impossible constraint" } */
      15  /* { dg-warning "'asm' operand 1" "asm operand 1" { target *-*-* } .-1 } */
      16          "\n"
      17          : "+r" (stack->regs)
      18      );
      19  }
      20