int colors_n = arch_register_class_n_regs(chordal_env->cls);
int allocatable_regs
= colors_n - be_put_ignore_regs(irg, chordal_env->cls, NULL);
/* some special classes contain only ignore regs, no work to be done */
if (allocatable_regs > 0) {
int colors_n = arch_register_class_n_regs(chordal_env->cls);
int allocatable_regs
= colors_n - be_put_ignore_regs(irg, chordal_env->cls, NULL);
/* some special classes contain only ignore regs, no work to be done */
if (allocatable_regs > 0) {