Subversion Repositories openrisc_2011-10-31

/* { dg-do link } */

/* { dg-options "-O2" } */

/* PR middle-end/18628 exposed a problem in which cse folded a load

   from a jump table into the label that was the target of the branch.

   Unfortunately, the indirect jump was moved to a different basic

   block, and the LABEL_REF copied to the register wasn't enough to

   keep the cfg from optimizing the otherwise-unused label away.  So

   we ended up with a dangling reference to the label.  */

int i;

int main()

{

  for (;;)

  {

    switch (i)

    {

      case 0:

      case 1:

        return 1;

      case 2:

      case 3:

        return 0;

      case 5:

        --i;

    }

  }

}