I just checked the code - it is explicit (there is literally a file called dead-code-elimination.cc that shows the reductions) and it's turned on and it's added

I just checked the code - it is explicit (there is literally a file called dead-code-elimination.cc that shows the reductions) and it's turned on and it's added in pipeline.cc :) So apparently it's been turned on for a while now which is good (it was off for a while before that).