base.FatalfAt(n.Pos(), "%v has unexpected Op %v", n, n.Op())
	}

	switch n.Class {
	case ir.PAUTO:
		return true
	case ir.PPARAM:
		return false
	case ir.PPARAMOUT:
		return n.IsOutputParamInRegisters()

	default:
		base.FatalfAt(n.Pos(), "%v has unexpected Class %v", n, n.Class)
		return false
	}
}

func (s *ssafn) AllocFrame(f *ssa.Func) {
	s.stksize = 0
	s.stkptrsize = 0

	}
	for i := int32(0); ; i++ {
		i = liveout.Next(i)
		if i < 0 {
			break
		}
		node := vars[i]
		switch node.Class {
		case ir.PPARAM, ir.PPARAMOUT:
			if !node.IsOutputParamInRegisters() {
				if node.FrameOffset() < 0 {
					lv.f.Fatalf("Node %v has frameoffset %d\n", node.Sym().Name, node.FrameOffset())
				}
				typebits.SetNoCheck(node.Type(), node.FrameOffset(), args)
				break
			}