id := v.ID
	if v.InCache {
		f.unCache(v)
	}
	*v = Value{}
	v.ID = id
	v.argstorage[0] = f.freeValues
	f.freeValues = v
}

// NewBlock allocates a new Block of the given kind and places it at the end of f.Blocks.
func (f *Func) NewBlock(kind BlockKind) *Block {
	var b *Block
	if f.freeBlocks != nil {
		b = f.freeBlocks
		f.freeBlocks = b.succstorage[0].b
		b.succstorage[0].b = nil
	} else {