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[PERF] Optimize 3rd heaviest func, (81b -> 10m) #15043

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Merged
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Jun 13, 2025
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[PERF] Optimize 3rd heaviest func, (81b -> 10m) #15043

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3 changes: 1 addition & 2 deletions clippy_utils/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1793,10 +1793,9 @@ pub fn in_automatically_derived(tcx: TyCtxt<'_>, id: HirId) -> bool {

/// Checks if the given `DefId` matches the `libc` item.
pub fn match_libc_symbol(cx: &LateContext<'_>, did: DefId, name: Symbol) -> bool {
let path = cx.get_def_path(did);
// libc is meant to be used as a flat list of names, but they're all actually defined in different
// modules based on the target platform. Ignore everything but crate name and the item name.
path.first().is_some_and(|s| *s == sym::libc) && path.last().copied() == Some(name)
cx.tcx.crate_name(did.krate) == sym::libc && cx.tcx.def_path_str(did).ends_with(name.as_str())
}

/// Returns the list of condition expressions and the list of blocks in a
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