1  /* PR optimization/10157 */
       2  /* Originator: Peter van Hoof <p.van-hoof@qub.ac.uk> */
       3  
       4  /* { dg-do compile } */
       5  /* { dg-options "-O2 -ffast-math" } */
       6  
       7  /* Verify that the loop optimizer doesn't
       8     emit invalid reg-to-reg copy insns. */
       9  
      10  void g() {
      11    while(1) {
      12      int i,n;
      13      double p,r;
      14      for( i=0; i < n; i++ )
      15        if( p > 1. )
      16          for( i=0; i < n; i++ )
      17            r += 2.;
      18    }
      19  }