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
10void 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}
20