Rutefig/231 applying cse to compiler

[rutefig]

No description provided.

[leolara]

Why is not passing the tests?

[leolara]

We need a trace that have a method, that received the relevant info about the common sub-expression and returns a u32. 0 means that it should be ignored and other number is the score and the biggest score should be picked to subsitute.

@rutefig sorry, there where it says trace it should have said trait. Please, let me know if you don't understand something.

An object that implements a trait should be passed to return the score.

When that is done, let me know, to review again

[rutefig]

Why is not passing the tests?

Just formatting, I will fix it when it would be ready for review

[rutefig]

We need a trace that have a method, that received the relevant info about the common sub-expression and returns a u32. 0 means that it should be ignored and other number is the score and the biggest score should be picked to subsitute.

@rutefig sorry, there where it says trace it should have said trait. Please, let me know if you don't understand something.

An object that implements a trait should be passed to return the score.

When that is done, let me know, to review again

@leolara Can you review again pls?

[leolara]

@rutefig we need a default implementation of the scorer following this rules as explained before:

The first implementation should be:

if degree is less than a configurable number return 0
if number of repetations is less than a configurable number return 0
return number of occurances * degree

[leolara]

The scorer is good, now I need to review the rest. I have not checked the tests, but make sure they are comprehensive and check corner cases.

[leolara]

I mean what is the method get_auto_signal for?