// Use a register argument for evacuate, if available.
// Earlier, the regparm attribute was used whenever __GNUC__ >= 2, but this
// generated warnings on PPC. So the use is restricted further.
// Use a register argument for evacuate, if available.
// Earlier, the regparm attribute was used whenever __GNUC__ >= 2, but this
// generated warnings on PPC. So the use is restricted further.