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Improve the docstrings of the Lto struct. #84365

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Apr 22, 2021
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Improve the docstrings of the Lto struct. #84365

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12 changes: 7 additions & 5 deletions compiler/rustc_session/src/config.rs
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Expand Up @@ -75,19 +75,21 @@ impl_stable_hash_via_hash!(OptLevel);

/// This is what the `LtoCli` values get mapped to after resolving defaults and
/// and taking other command line options into account.
///
/// Note that linker plugin-based LTO is a different mechanism entirely.
#[derive(Clone, PartialEq)]
pub enum Lto {
/// Don't do any LTO whatsoever
/// Don't do any LTO whatsoever.
No,

/// Do a full crate graph LTO with ThinLTO
/// Do a full-crate-graph (inter-crate) LTO with ThinLTO.
Thin,

/// Do a local graph LTO with ThinLTO (only relevant for multiple codegen
/// units).
/// Do a local ThinLTO (intra-crate, over the CodeGen Units of the local crate only). This is
/// only relevant if multiple CGUs are used.
ThinLocal,

/// Do a full crate graph LTO with "fat" LTO
/// Do a full-crate-graph (inter-crate) LTO with "fat" LTO.
Fat,
}

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