From 8ee615561725dcd15c648ccca85c3a79cb5e3af5 Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Fri, 12 Dec 2025 08:38:28 +0100
Subject: [PATCH] const-eval: always do full typed copies

---
 compiler/rustc_const_eval/src/const_eval/machine.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/compiler/rustc_const_eval/src/const_eval/machine.rs b/compiler/rustc_const_eval/src/const_eval/machine.rs
index fccb6b171b1c2..986253b2e4148 100644
--- a/compiler/rustc_const_eval/src/const_eval/machine.rs
+++ b/compiler/rustc_const_eval/src/const_eval/machine.rs
@@ -408,8 +408,8 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> {
     }
 
     #[inline(always)]
-    fn enforce_validity(ecx: &InterpCx<'tcx, Self>, layout: TyAndLayout<'tcx>) -> bool {
-        ecx.tcx.sess.opts.unstable_opts.extra_const_ub_checks || layout.is_uninhabited()
+    fn enforce_validity(_ecx: &InterpCx<'tcx, Self>, _layout: TyAndLayout<'tcx>) -> bool {
+        true
     }
 
     fn load_mir(