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hkalbasi
on Oct 14, 2023
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Escape analysis hates copy elision (2021)
It seems it isn't yet:
https://github.com/rust-lang/rust/issues/116744
afdbcreid
on Oct 15, 2023
[–]
It does pass this information to LLVM, in the form of the `readonly` attribute. This seems to be a bug in LLVM that does not optimize the function propely, I don't know why.
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