Ensure #[used] symbols are preserved in LTO

rust-lang · Apr 24, 2022 · 1af3e0a · 1af3e0a
1 parent 9ebeb28
commit 1af3e0a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/compiler/rustc_codegen_llvm/src/back/lto.rs b/compiler/rustc_codegen_llvm/src/back/lto.rs
@@ -56,7 +56,7 @@ fn prepare_lto(
     };
 
     let symbol_filter = &|&(ref name, info): &(String, SymbolExportInfo)| {
-        if info.level.is_below_threshold(export_threshold) {
+        if info.level.is_below_threshold(export_threshold) || info.used {
             Some(CString::new(name.as_str()).unwrap())
         } else {
             None