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Comment by Rusky | Hacker News Reader

A good mental exercise with these kinds of examples is to imagine splitting up the parts of the program that each optimization looked at, so that they live in different translation units.

This prevents your mind from playing games with what exactly the optimization can know. The article tries to do something similar by fully writing out the output of each optimization as a separate program.

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> A good mental exercise with these kinds of examples is to imagine splitting up the parts of the program that each optimization looked at, so that they live in different translation units. This prevents your mind from playing games with what exactly the optimization can know. The article tries to do something similar but fully writing out the output of each optimization as a separate program.

I already do that in my mind, and my mind isn't playing games. If you have a specific point to rebut please do so. Though please read https://news.ycombinator.com/item?id=42907292 in its entirety beforehand. It seems we are reading those intermediate outputs differently.

My point was that toy examples like this are useful as long as you think about them consistently. I wasn't trying to make any claims about your concrete argument in particular.

> My point was that toy examples like this are useful as long as you think about them consistently. I wasn't trying to make any claims about your concrete argument in particular.

But I think I am, was my point.

I don't care. I wasn't trying to say whether you were or weren't. Not every comment on HN is a direct rebuttal to its parent.

Sorry, never mind then. It just came across that way.

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