Re: Question on Value vs. ValueBox

[Shawn Laubach <laubach@acm.org>]

A value is a Jimple expression.  A value box is a structure that has a
reference to a Value.  This way, many expressions or statements can all
point to the same expression.  This helps with copy propogation because
the expression in the ValueBox is redirected to a different expression
without changing anything else.

Shawn

On Sun, 13 Dec 1998, James C. Corbett wrote:

> I'm looking at example 3 (copy propagaton) in the Soot distribution.
> I understand the basic logic, but I'm a little confused by the
> representation.  What is the difference between a Value and a
> ValueBox?  What do each represent?   
> 
> Jay
>