> The reality is that for any language, including C, compiler optimized code wil... | Hacker News

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		GrantMoyer 8 days ago \| parent \| context \| favorite \| on: Building a data compression utility in Haskell usi... > The reality is that for any language, including C, compiler optimized code will never be as fast as hand optimized code That's not strictly true; sometimes a C compiler can optimize away my whole program: https://godbolt.org/z/oG5nfGE6z

wyager 8 days ago [–]

You're doing extremely simple constant arithmetic here. GHC can optimize this type of thing away to nothing as well. Are we talking about contrived examples or real numerical bottlenecks?

Twisol 8 days ago | [–]

I think it was a joke about compilers removing code by reasoning about undefined behavior.

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