| Parents: | compiler.tree.propagation | 
| Word | Stack effect | 
|  compute-copy-equiv* | ( node -- ) | 
|  copies | 
| Word | Stack effect | 
|  are-copies-of | ( vals copies -- ) | 
|  compute-copy-equiv | ( node -- ) | 
|  compute-phi-equiv | ( inputs outputs -- ) | 
|  introduce-value | ( val -- ) | 
|  introduce-values | ( vals -- ) | 
|  is-copy-of | ( val copy -- ) | 
|  resolve-copies | ( copies -- vals ) | 
|  resolve-copy | ( copy -- val ) |