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Simplify dead code lint #144863

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Merged
merged 9 commits into from
Aug 5, 2025
Merged

Simplify dead code lint #144863

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bc17705
Do not record derived impl def-id for dead code.
cjgillot Aug 2, 2025
aba0b65
Use DefKind in should_explore.
cjgillot Aug 2, 2025
99ee623
Remove struct_constructors.
cjgillot Aug 3, 2025
6c39b30
Simplify handling of unsolved items.
cjgillot Aug 2, 2025
f601717
Use less HIR when seeding work list.
cjgillot Aug 2, 2025
377728a
Keep scanned set across calls to mark_live_symbols.
cjgillot Aug 3, 2025
effc509
Simplify lint emission.
cjgillot Aug 3, 2025
e0a89c4
Simplify maybe_record_as_seed.
cjgillot Aug 4, 2025
d0da6ca
Update doc-comment.
cjgillot Aug 4, 2025
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5 changes: 2 additions & 3 deletions compiler/rustc_middle/src/query/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1178,11 +1178,10 @@ rustc_queries! {

/// Return the live symbols in the crate for dead code check.
///
/// The second return value maps from ADTs to ignored derived traits (e.g. Debug and Clone) and
/// their respective impl (i.e., part of the derive macro)
/// The second return value maps from ADTs to ignored derived traits (e.g. Debug and Clone).
query live_symbols_and_ignored_derived_traits(_: ()) -> &'tcx (
LocalDefIdSet,
LocalDefIdMap<FxIndexSet<(DefId, DefId)>>
LocalDefIdMap<FxIndexSet<DefId>>,
) {
arena_cache
desc { "finding live symbols in crate" }
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