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/* PR optimization/10157 */
/* Originator: Peter van Hoof <p.van-hoof@qub.ac.uk> */
 
/* { dg-do compile } */
/* { dg-options "-O2 -ffast-math" } */
 
/* Verify that the loop optimizer doesn't
   emit invalid reg-to-reg copy insns. */
 
void g() {
  while(1) {
    int i,n;
    double p,r;
    for( i=0; i < n; i++ )
      if( p > 1. )
        for( i=0; i < n; i++ )
          r += 2.;
  }
}