Make #[used] considered reachable

nbdd0121 · nbdd0121 · commit 08b70292737b · 2022-04-02T22:29:59.000+01:00
diff --git a/compiler/rustc_passes/src/reachable.rs b/compiler/rustc_passes/src/reachable.rs
@@ -332,6 +332,8 @@ impl CollectPrivateImplItemsVisitor<'_, '_> {
         // which are currently akin to allocator symbols.
         let codegen_attrs = self.tcx.codegen_fn_attrs(def_id);
         if codegen_attrs.contains_extern_indicator()
+            || codegen_attrs.flags.contains(CodegenFnAttrFlags::USED)
+            || codegen_attrs.flags.contains(CodegenFnAttrFlags::USED_LINKER)
             || codegen_attrs.flags.contains(CodegenFnAttrFlags::RUSTC_STD_INTERNAL_SYMBOL)
         {
             self.worklist.push(def_id);

Original file line number	Diff line number	Diff line change
`@@ -332,6 +332,8 @@ impl CollectPrivateImplItemsVisitor<'_, '_> {`
`332`	`332`	`// which are currently akin to allocator symbols.`
`333`	`333`	`let codegen_attrs = self.tcx.codegen_fn_attrs(def_id);`
`334`	`334`	`if codegen_attrs.contains_extern_indicator()`
	`335`	`+ \|\| codegen_attrs.flags.contains(CodegenFnAttrFlags::USED)`
	`336`	`+ \|\| codegen_attrs.flags.contains(CodegenFnAttrFlags::USED_LINKER)`
`335`	`337`	`\|\| codegen_attrs.flags.contains(CodegenFnAttrFlags::RUSTC_STD_INTERNAL_SYMBOL)`
`336`	`338`	`{`
`337`	`339`	`self.worklist.push(def_id);`