func printIdom(b *ssa.BasicBlock, out *bytes.Buffer) {
if b.Index == 0 {
out.WriteString("Basic Block has no idom because it is a entry node.")
return
}
if b == b.Parent().Recover {
out.WriteString("Basic Block has no idom because it is a recover node")
return
}
out.WriteString(" Idom of ")
out.WriteString(strconv.Itoa(b.Index))
out.WriteString(" is: ")
out.WriteString(strconv.Itoa(b.Idom().Index))
out.WriteString("\n")
}
