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-rw-r--r--compiler/rustc_const_eval/src/check_consts/check.rs6
-rw-r--r--compiler/rustc_const_eval/src/const_eval/machine.rs2
2 files changed, 4 insertions, 4 deletions
diff --git a/compiler/rustc_const_eval/src/check_consts/check.rs b/compiler/rustc_const_eval/src/check_consts/check.rs
index 8e2c138282a..ca707b50d50 100644
--- a/compiler/rustc_const_eval/src/check_consts/check.rs
+++ b/compiler/rustc_const_eval/src/check_consts/check.rs
@@ -827,7 +827,7 @@ impl<'tcx> Visitor<'tcx> for Checker<'_, 'tcx> {
 
                 // At this point, we are calling a function, `callee`, whose `DefId` is known...
 
-                // `begin_panic` and `#[rustc_const_panic_str]` functions accept generic
+                // `begin_panic` and `panic_display` functions accept generic
                 // types other than str. Check to enforce that only str can be used in
                 // const-eval.
 
@@ -841,8 +841,8 @@ impl<'tcx> Visitor<'tcx> for Checker<'_, 'tcx> {
                     return;
                 }
 
-                // const-eval of `#[rustc_const_panic_str]` functions assumes the argument is `&&str`
-                if tcx.has_attr(callee, sym::rustc_const_panic_str) {
+                // const-eval of `panic_display` assumes the argument is `&&str`
+                if tcx.is_lang_item(callee, LangItem::PanicDisplay) {
                     match args[0].node.ty(&self.ccx.body.local_decls, tcx).kind() {
                         ty::Ref(_, ty, _) if matches!(ty.kind(), ty::Ref(_, ty, _) if ty.is_str()) =>
                             {}
diff --git a/compiler/rustc_const_eval/src/const_eval/machine.rs b/compiler/rustc_const_eval/src/const_eval/machine.rs
index a18ae79f318..da954cf4ed7 100644
--- a/compiler/rustc_const_eval/src/const_eval/machine.rs
+++ b/compiler/rustc_const_eval/src/const_eval/machine.rs
@@ -237,7 +237,7 @@ impl<'tcx> CompileTimeInterpCx<'tcx> {
     ) -> InterpResult<'tcx, Option<ty::Instance<'tcx>>> {
         let def_id = instance.def_id();
 
-        if self.tcx.has_attr(def_id, sym::rustc_const_panic_str)
+        if self.tcx.is_lang_item(def_id, LangItem::PanicDisplay)
             || self.tcx.is_lang_item(def_id, LangItem::BeginPanic)
         {
             let args = self.copy_fn_args(args);