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rustc: set --embed-bitcode=no if LTO is not enabled #3045

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ParkMyCar opened this issue Dec 5, 2024 · 0 comments · May be fixed by #3104
Open

rustc: set --embed-bitcode=no if LTO is not enabled #3045

ParkMyCar opened this issue Dec 5, 2024 · 0 comments · May be fixed by #3104
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enhancement

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@ParkMyCar
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Whether or not rustc embeds LLVM bitcode, which is used for LTO, is controlled via the --embed-bitcode flag. When LTO is disabled Cargo will automatically set --embed-bitcode=no because embedding bitcode can significantly slow down compile times (docs). It would be great if rules_rust could do the same!
@ParkMyCar ParkMyCar linked a pull request Dec 15, 2024 that will close this issue
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feat: Add //rust/settings:lto ParkMyCar/rules_rust
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@ParkMyCar @UebelAndre