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Make #[used] considered reachable

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This commit is contained in:
Gary Guo 2022-04-02 22:29:59 +01:00
parent 49cc6d1f84
commit a1dae4bc9d
1 changed files with 5 additions and 0 deletions
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5
compiler/rustc_passes/src/reachable.rs
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@ -333,6 +333,11 @@ impl CollectPrivateImplItemsVisitor<'_, '_> {
let codegen_attrs = self.tcx.codegen_fn_attrs(def_id);
if codegen_attrs.contains_extern_indicator()
|| codegen_attrs.flags.contains(CodegenFnAttrFlags::RUSTC_STD_INTERNAL_SYMBOL)
// FIXME(nbdd0121): `#[used]` are marked as reachable here so it's picked up by
// `linked_symbols` in cg_ssa. They won't be exported in binary or cdylib due to their
// `SymbolExportLevel::Rust` export level but may end up being exported in dylibs.
|| codegen_attrs.flags.contains(CodegenFnAttrFlags::USED)
|| codegen_attrs.flags.contains(CodegenFnAttrFlags::USED_LINKER)
{
self.worklist.push(def_id);
}