[bee_rider]

I’ve always thought this would be an interesting use for a hyperthread (send it to execute both sides of an if, when the programmers knows the branch predictor is likely to not be able to know which side is right). But, never got around to coding anything like that up…

[markhahn]

the problem is that when you care (unpredictable but hot branches), there are probably too many of them to execute in parallel (use up all your speculation depth). 2^n, you know!

not to mention that you burn a lot more power.