From cd613fd63d1f44e37a9429fd331ea866055a116d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Esteban=20K=C3=BCber?= <esteban@kuber.com.ar>
Date: Wed, 4 Dec 2024 06:05:29 +0000
Subject: [PATCH] Make `rustc_cfg_placeholder` compatible with `naked`

---
 compiler/rustc_passes/src/check_attr.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs
index cfd07e7e56001..9b8cfbc80515d 100644
--- a/compiler/rustc_passes/src/check_attr.rs
+++ b/compiler/rustc_passes/src/check_attr.rs
@@ -523,6 +523,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> {
             // conditional compilation
             sym::cfg,
             sym::cfg_attr,
+            sym::rustc_cfg_placeholder
             // testing (allowed here so better errors can be generated in `rustc_builtin_macros::test`)
             sym::test,
             sym::ignore,